Note: Descriptions are shown in the official language in which they were submitted.
AUTOMATIC MONEY HANDLING DEVICE
Cross References to Related Applications
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The present invention is related to two
other Canadian patent applications filed on the
same date as the present appllcation, all of
which are assigned to a common assignee. These
applications, Nos. 370,301 and 370,302, are, re-
spectively, Point of Sale Terminal Having Prompting
Display and Automatic Money Handling invented by
Norris S. Azcua, Geor~ge D. Margolin, Audrey Miller
and Victor V. Vurpillat and Point of Sale Terminal
Having Prompting Display, invented by the same four
inventors listed above.
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The pre33nt inv~ntion relatcs to ~ devic0
~or ~smi-automaticnlly h~ndling money, coin~
and bill~ coupons~ certiricat~i~ and ~imil~r
items. The devic~ hi~s a computer devlce to
control one or msre movable bill belt~ in
re~ponDe to signals rec~iv~d rrom bill detec~
tors placed ~lone the bill~ p~th ~g it moves
rrom outslde the bill bel~ to a po~ltion
sandwiched b0twsen th~ bill b~lts. The bill
belt~ ~ro driv~n in both ror~ard and re~ersc
direction~ by motora ~iontrolléd by th~ sensor~
and th~ oomput0rO Tho devic0 ha~ Q hou~ln~
with a Yiewing wlndow~ a keyboard and an ~nlet-
outle~ oh~n~l~ Tho bill belts tr~n~port t~e
tendered bill to the ~ewing wlndow for id~n
ti~ication and veri~1cation b~ the devi~
op~rator. The oper~tor then actu~te~ an acc~pt
key or reject key to indicate if the tendered
bi}l 1~ ~c~pt~dD Ir the bill i~ re~0ctad by
the operQtor, keying the re~ect key c~u~s the
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belts ~o b~ ~riY~n in the r~var~e d~r~ctlon ~o
return the bill to the ou~tomer.
One embodiment Or the pre3ent lnvention
ha~ ~our bill belt~a Each belt mechanism l~
independently ~riven by separat~ motors but
commonly controlled by on~s computin~ control
device. Each belt mechan.l~m h~s its own sen-
~ors, viewin~ window, inlet outlat channel and
accept ~nd reject keys. Each belt i3 control-
led ~o that it oan't be "tea~ed" by a customer
tendering Q bill ~nd then wlthdrawing it~ If
a bill is not d~tected within a rixcd time
period by the second ~ahsor, the belt motor~
ar~ ~topped. Thi~ ~nt~te~so ~unction save~
belt ~torage 8pSCe and prep~re3 the deYice to -
accept a v~l$d trans~ction.
The bill belt~ in on~ embodlm~nt of the
inventlon ha~e desiBnated input~: a $1 belt,-
a $5 belt, a $10~$20 belt, ~nd ~ coupon ,
certiricate and related docum~nt belt. Each
~ belt trsn~pQrent ~nd ha~ a ~ir~t bill deteotor
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adj~cent ~he input-output channel to the belt
and ~ ~econd detector alon~ the viewing path
in between the inputoutput ehann~l and tho
viewing window. A third bill detector may bc
used on the opposito side Or the Yiewing window.
B~cau~e the bill b~lt~ can be driven in
both rorward ~nd reverse directio~sO money
c8n be dispensed ~ ch~ng~ by the device. How~
e~er, in one ~mbodlment Or the prasent inYen~
tlonO only the $1 and ~5 bill balt~ cQn ba
oper~ted a~ bill dl~pensar~; although ~11 bill
belt~ can rsject unacceptab~o bill~.
I~ mors than one bi~l balt 18 employ3d~
Q ~ignal light can be plac3d ln the housine
near the viewlng window to indic~te which bs~t
~a in operation ~o that the oper~tor can look
for a tendered bill in the proper v$ewing
window. The bslts can ba controlled so that .
only one bill belt at ~ time c~n be act~va.
The motors can be controlle~ ~o that th~ bill
belt di~pon~es bill~ to kho inlet outlet
ch~nnel but requires the cUstomer to remove
the blll or tho l~st bill a~ change ~n order
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to have 'che controller proceod to 'che n~xt
step ln th~ tr~n~ction9 In on~ embod~m~nt
Or th~ pre~ent invention the ~en~or~ are
separatod by ~ dl~tanc~ . than one bill
length ~nd the ~ntire vl~wing path Qlong th~
top Or th~ housirlg i~s ~bout two bill lengt~s .
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~rief Description_of the Dxawlngs
Figure 1 shows a top perspective view of the housing
forming a part of one embodiment of the present invention.
Figure 2 shows a keyboard forming a part of the
present invention.
Figure 3 shows the bill trays and viewing windows
forming part of the present invention.
Figure 4 shows an axial view of the bill belt mechanism
forming a part of the present invention.
Figure 5 shows the basic steps performed by the
operator and the terminal during a sale.
Figures 6 and 7 show two views of the coin changer
used in connection with the present invention.
Figures 8 and 9 are side and top views of a prompting
display which can be used in conjunction with the present
invention and which are shown and described in co-pending
Canadian Patent Application Serial Number 370,302 filed
on February 6, 1981..
Figure 10 shows a block diagram of the present
invention as part of a larger point oE sale terminal system.
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Figure 11 shows a block diagram of the multiplexer
shown in Figure 10.
Figures 12-23 show details of the electrical circuitry
shown in Figure 11 above.
Figures 24 and 25 show a block diagram of the method
steps used by the operator in actuating the present
invention during a sale.
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D~TAIL DESCRIPTION
Introduct,ion
The presant inventio,l provide~ a point Or
sale kerminal ror autom~tlcally caleulatlrlg a
p~ymant due ror a aale~ tran~ction and ror
receiving money tsndered in payment ~nd ~or
dlsp~nsi~g ¢hanB~ Tha ~tem includ~ ~
dat~ processing subsyste~ comprl~ing at least
one comput~r~ ~ memory which m~y Include
read~only memory (ROM) and a random~e~e~
m~mory (RAM) ~ ke~bo~rd; and a cu~tomer~
ed money ~torage ~nd p~y~out daviceO The
keybo~rd inoludes a group Or item-repre~entln~
ke~s~ pre~erably ror thos~ ~tems hAving
the hi~hest volume o~ ~ale~. The terminal
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also includes a promptlng display for prompt-
ing the operator to key in item-identification
data. A computer receives such item-identifi-
cation data, retrieves from the memory price
data for each keyed item, and calculates the
tota] price of the transaction. The money
handling device has a plurality of customer-
fed bill belts for receiving, storing and dis-
pensing bills of different denominations, as
well as ~or receiving checks, coupons, and
the like. The money handling device includes
a coin receiver, storer, sorter and dispenser.
The bill and coin devices operate under con-
trol of one or more computers to receive
money and to dispense change. A digital dis-
play subsystem operating under control of a
computer displays the amount of sale and the
amount tendered. A printer provides a print-
out of sales data and data identifying the
attendant responsible for each transaction.
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Fi~sure~ 1 and 3 illustrate housing 10
having an intertor I`or contf~lning e~ectro-
mechani c~l and el~ctronic app~ratu~. An upper
port~on of the hr)using ha~ ~n exts3rior r~Oe
11 with a kcyboard ~4 ol~ one slde 13 Or the
housing. The keyboar~l ~hotr~n in wi~ure 2 i~
descrlbed in detflil in a sep~r~te section.
The upper portion on a cu~tomer ~ide 15
Or the houYing ilas un exterior race 17 ror
acces9 to a ~erie8 o~ rour side-by~usid~ cu~
-tomer-~d bill belt devie0s. E:~ch bill belt
dev~e is a sep~r~t0 eleetro-mechan~aal device
~ub~çt to ¢ommon ~ontrolO In ~ ~ep~r~te ae~;
tion there 18 ~I det~ilad d2sariptlon of' an
individual ~ill belt. Each blll belt ~0~
G~ltlE~ with a corraspond~ng one o~ ~our money
trays 16 pro~eoting outwardly ~rom the c~astomer
3ide o~ the housin~ 100 Each bill belt davle~
h~ an inl~tJoutlet channel at the ~uneti on
bet~0en the 'cr~ ~d the ~hou~in~a Bill3
de~p~naed a3 ch~nge or re je~tea ~re received
in th~ mon~y trays 16.
r~ ~t~
Four side-by-side windows 20 are provided
on a top portion Or the housin~ ~or viewing
from both the attendant ~ide 13 ~nd the cu~-
tomar sidc 15 Or the housing., E~ch bill balt
la ~ligned with one Or the window3 20 ~o that
a b~ll s~nclwiched between the bill belts can
be viewed by an operator.
The custom0r side i8 Or tll~ housin~ 10
includs~ digital di~play~ 22 and 242, Di~play
"~ 22 shows the totQl ~mount Or each ~Rlea trana-
~ctiorl and di~pl~y 21~ ~3}'10W9 the ~nount tendered
by the cu~tomer. A coin ~lot 26 and ~ coin
receptacle 28 are 1 ocatad on tha oustomer ~id~3
Or the hou~ 1 5o
! ',' Th0r~ ~re Oal tho keyboard ~ D. grslup o~`
TOtEi1 koys by wnich e~ch operator ¢An entor
data that the ~omputer recogni2es a~ both
transactlon dat~ ~nd employ0e-id~ntirication
dsta9 and & group o~ A¢c0pt and Re~ect key~
by uhi~- an operakor G~n corltrol the bill b~lt~.
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A ~e~ture Or the present lnvantion i9
that the ~ttendant need not rememb~r the price
of any item ordered by à customer. Having
re~elved the customcr~ 8 order, the attendant
~imply actuates khe appropriate keya eith~r
item key~ or c~tegory ~nd number key3 a9
prompted by the prompting display to key in
item-identiricat~on data. In re3pon~e~ the
data processor retriev0s rrom memory the
corresponding pric0 data, and displays it on
22, A~ter all the ordered item~ have baan
entered, the oper~tor ~ctua~es the proper
Total ~e~ to conclude the order pha~ Or the
~ale8 transaetionO The n~xt pha8e 0~ the
~ales tran~a~tion ln~olve~ the cal~ulation
ahd di~play o~ payment-duc dat~, In as much
a~ the d~ta entered by ths ~otal key provide~
employee~ide~ti~ication the oomputer c~n up~
d~te an a~tiv1ty re~ord ~tored In the memory.
Such an a~ti~i:ty re¢ord i~ particularly u~e-
ul to evaluat~ p~r~ormanoe o~` employeesO
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Arter the paymentdu~ has been c~lcu~ted,,
the computsr arms the money belt~ either
direct~y or throu~h ~nother computer or con-
trollar. An attemptcd depo~it o~ money by
customer prior to ~uch armine will prove
rruitle~s~ Prior to armin~" any ¢oin d0po~ite~
in the coin alot Z6 drop~ down ~ chute to coin
r~c0pt~clo 28 rOr return to the customer,
Deposit Or a blll into the l~nnrmed bill belts
will leave the bill in tha tray 160 This
feature minimiæes the po~ibility of di~pute~
~ince it iB ~ simple matter to demonstr~te th~t
money cannot be ~ed into the una~med money
receptacle~
Onc~ armed the terminal anters a pay~in
mod3. NO~D ~hen the cu~tomer drops a coin
into coln ~lo~ 26 it will b0 sortod and ~tor0d
on the b~sl~ o~ d~nomonatlon, E~ch bill
t~ndered i~ tran~ported to the window 20 ror
viewin~ the cu~tomer tender~ ~n unaccep~
table bill, the ~tendA~t can c~U8e it to be
returnod to the cu~tomer by actuating the
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appropriate reject key 84, 88, 98, 104. If the visual
-test is passed, the attendant actuates an Accept key.
The computer is responsive to successive actua~ions of
the Accept keys after a bill is sensed to accumulate
and display a running total of the amount of money
accepted.
The computer determines whether any chanye is due
to the customer. If no change is due to the customer,
the data processor disarms the money handling apparatus.
If change is due, the system enters a change-dispensing
mode during which either or both coins and bills are
dispensed. In either case a printer produces a record
of the transaction.
Keyboard
The keyboard illustrated in FIG. 2 includes a group
of individual item-representing keys 32, or Best Seller
keys. In the illustrated embodiment there are twelve
Best Seller keys 32 in the group. Each Best Seller
key preferably has a corresponding pictorial represen
tation, (illustrated in phantom lines at 34 on each key)
of the item associated with the particular key, together
with a separate label 36 printed on each key describing
the item associated with that particular key. The labels
36 relating to the items identified by the twelve Best
Seller keys are indicated in the drawings as Item 1
through Item 12 for simplicity.
The keyboard 14 also includes a prompting display
38 for displaying product category and corresponding
item-listing information for the less frequently sold
items and for the Best Seller items the prompting
display provides data for prompting the attendant to
actuate certain keys on the keyboard to identify to
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the data processor corresponding less-frequently sold
items being sold a-t the point of sale.
In the illustrated embodiment, a series of eight
mutually spaced apart Category keys 40 are positioned
alongside a window 42 which covers the prompting dis-
play and through which the prompting display can be
viewed. Each category key has a corresponding label
41 for identifying a category of .information to which
the key corresponds. The prompting display includes
a movable roll 44. An electro-mechanical drive appar-
atus is provided for moving the roll 44. Each cate-
gory and its related list of items is printed on the
roll. A selected portion of the roll can be moved to
the window 42 for display when the attendant actuates
a particular Category key 40. For example, in the
embodiment shown a category heading 46 entitled
"CATEGORY 5" displays a listing of corresponding
individual items 48, depicted as "ITEM Q"; and when
the attendant manually actuates the category key 40
labeled "CATEGORY 5" the roll 44 is moved until the
listins for CATEGORY 5 is displayed in the window 42.
The roll shows a separate item-identifying code
50 unique to each item listed in the prompting display.
In the illustrated embodiment the prompting indicia
for each item is a two-digit number displayed on the
roll next to the item.
A group of numeric keys 54, hereafter collect-
ively called a numeric pad, are positioned on the
keyboard next to the prompting display 38. The .
numeric pad preferably comprises ten individual keys
labeled O through 9, respectively, with an eleventh
key 56 labeled "TAX", for identifying taxable items.
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The numeric pad can be used to identify to the data
processor i-tems selected from the prompting display.
To identify each item selected from the prompting
display, first a category key is actuated and then
two of the numeric keys are actuated in an order which
supplies to the data processor a three-digit number
for itentifying the selected item. For example, to
indicate ITEl~ J in CATEGORY 5 first the CATEGORY 5
key is actuated and then the numeric keys are actu-
ated in the sequence 3,2 for supplying a correspond-
ing three-digit number (5,3,2) to the data processor
for identifying ITEM ~.
The prompting display roll preferably contains
a Listing of all available items for sale. Owing
to this preferred feature, "redundancy" is provided
in that items represented on the Best Seller keys
32 are also represented on the roll.
By way of example, in the course of the order-
entry phase of a sales transaction in~olving the sale
of one or more sest Seller items and one or more less
frequently sold items, separate item-representing
keys 32 are actuated to indicate purchase of each
Best Seller item. The promptiny display is actuated
to display information relating to each item not
represented on the Best Seller keys, and in a sequence
prompted by the prompting display, the numeric keys
54 are actuated to indicate a separate multi-digit
code for each less frequently sold item displayed
on the prompting display. Data processor subsystem
includes a look-up table for retrieving a pre-loaded
price for each item identified in the order-entry
phase of the sales transaction. The Tax button 56
is actuated after each taxable itam is indicated and
the data processing sybsyscem Falculates the tax on
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each taxable item. An arlthmetic un:i-t in the data
processor sums the individual prices of each iden-
tified item, as well as the tax on each item, so as
to calculate the total price of the sale transac-tion.
The keyboard includes Total keys 62. In the
illustrated embodiment~ there are eight Total keys
having indicia 64 suitably the letters A throuyh H.
In response to the actuation of any one of the Total
keys during a sales transaction, the computer cal-
culates the payment due.
Above the group of numeric keys there is a first
Special-Item key 57. This key is used to enter into
the data processor concerning the sale of special
items not otherwise identiiable by the item-repre-
senting keys 32 or the category information in theprompting display 38. The data processor can be
programmed so that when the Special-Item key 57 is
actuated, followed by entry of the sale amount, in
cents, on the numeric keys 54, the sale can be recorded,
along with its identification as a special item b~
selection of the next keyboard entry. I this is
the last or only sale entry, then actuation of a
corresponding Total key 62 can record the sala.
A second Special-Item key 58 above the group
numeric keys can be used to enter the sale of gift
coupons. ~he data processor can be programmed so
that when the second Special-Item key is actuated,
followed by entry of the sale amount on the numeric
keys, 54, the sale is recorded and identified in a
manner similar to the first Special-Itern key described
above.
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A Clear key 59 is located above the group of
numeric keys 54. The C~ear key is used for clearing
the last entry made.
A Sign-In key 66 and a Sign-Out key 68 are loc-
ated on the keyboard above the Total ke~s 62. The
Sign-In key is manually actuated by each attendant
to indicate when he or she is starting a work shift
and to assign a separate attendant identi~ication code
to each attendant. An attendant starting:awork shift
can depress the Sign-In key, enter his or her three
digit attendant number on the numeric pad 54, and
key 62 for indicating his or her code for that part-
icular work shift. Once a particular Total key is
assigned to an attendant by the sign-in procedure,
that particular Total key is unavailable for being
assigned to another attendant until the Sign-Out key
is actuated to release use of the key for an attendant
working a.subse~uent work shift.
The Sign-Out key 68 is manualIy actuated to cause
the data processor to record the times when the atten-
dants end their respective work shifts, as well as for
releasing the Total key code assigned to each attendant
ending a work shift. Attendants ending their work
shift sign out by actuating the Sign-out key, entering
their employee number on the numeric keys 54, and
entering their assigned code on one of the Total keys
62.
~A Void key 70 is provided on the keyboard above
: the Sign-In and Sign-Out keys. The Void key is used
to clear from the data processor all data entered from
the start of a given sales transaction. The Void key
becomes inoperative after arming of the bill caches,
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Above each bill belts opening are respective label 72
indicating the type of paper currency or money equiv-
alent to be inserted into the opening of each bill
belt 10. One dollar bills for a first bill belt 74;
five dollar bills for a second bill belt 76; either
~10 or $20, checks or other bills for a third bill
belt 78; and other bills, checks, coupons etc.,for a
fourth bill belt 80. The fourth bill belt is adapted
for receipt of promotional items.
~ach group of Accept/Reject keys as shown in
Figure 2 includes one or more keys labeled according
to the type of bill, coupon, check, etc., to be
received by a corresponding bill belt. ~ first
group of Accept/Reject keys associated with the
first bill cache 74 includes a One Dollar Accept key
82 and a One Dollar Reject key 84.
The second group of Accept/Reject keys comprises
a Five Dollar Accept key 86 and Reject key 88.
A third group of Accept/Reject keys includes a
Ten Dollar Accept key 90, a Twenty Dollar Accept key
92, a Check Accept key 94, an Other Dollar Accept key
96, a Reject key 98 for rejecting any of the bills in
the third bill belt.
Above a fourth group of Accept/Reject keys, there
is a special function key 100 labeled "SS" for enter-
ing acceptance of special transactions not covered
elsewhere on the key~oardO The fourth group comprises
a set of four keys 102 for indicating acceptance of
four different tvpes of coupons or similar store pro-
motion certificates. A Reject key 104 enters;rejec-
tion of any coupon certificate or the like tendered
into the fourth bill cache.
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Operation o~ the Ac~ept/Reject keys is under-
stood best by the followiny example. After having
entered data relatiny to all items involved in a
single order, the attendant depresses his or her
assigned Total key 62 to calculate and display the
amount of sale, i.e., the payment due. Payment is
made by the customer by inserting coins into the
coin slot 26 and/or bills, checks, coupons or the
like into appropriate openings 18. Upon tenderiny
of a bill to any opening 18 a light identifying the
active bill belt cues the att:endant to look to the
proper window 20. The attenclant then visually in-
spects the tendered bill. Upon verification, the
attendant depresses the appropriate One, Five, Ten,
Twenty key. Actuation of any of these keys indicates
the amount of payment made against the total sale
amount.
When payment of an amount equal to our greater
than the amount of sale is detected by the data
processor, the required amount of change, i~ any is
automatically calculated and dispensed by the coin,
the one dollar and five dollar bill devices as
required. No change is given from other than the
one or five dollar bill belts and the coin changer.
Recording of receipts and disbursements by denomin-
ation, along with the store-opening amounts, enable
the system to maintain an accurate account oE all
bills and coins throughout the business day.
Customer submittal o~ checks or other bill
denominations (two dollars, fi~ty dollars, etc.) is
verified by the attendant examining the dollar or
check amount through the corresponding window 20.
I~ the tendered bill or check is acceptable, the
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a-ttendant then enters the amount of the bill or check,
using the numeric keys 5~. Subsequent actuation of
either the Check key or the Other Dollar key 96 iden-
tifies the type and amount of payment to the lata
processor.
Actuation of the "SS" keys 100 provides a means
to record and identify special transaction, such as
discounts, give-aways, no charge sales, etc. Under
these conditions the bill belts are not activated.
Actuation of the "SS" keys, preceded by entering the
amount on the keys 54 enters an amount to be deducted
from the total sale and recorded as expense.
The coupon keys 102 labeled Coupon l through
Coupon 4 can be used to identify different types of
promotional sales. Actuation of this key can cause
the data processor to accept the value previously
entered on the numeric keys 54, to identify the sale
as resulting from a store promotion and to enter in
memory the cash value of the promotion to be used
later on cashreconciliation.
The keyboard includes a first digital display 106
for displaying the amount of each sales transaction,
and a second digital display 108 for displaying the
cumulative amount tendered in payment of each sales
transaction. Display 106 can be used to momentarily
display the price of each item sold and the tax on
each item sold. The keyboard also includes a first
LED 110 for being activated when display 106 relates
to the price of a particular item being sold; a second
LED 112 for indicating the tax on either the amount
previously displayed or the total tax; and a third
LED 114 to be activated; display 106 indicates the ~
total amount of the sales transaction, including tax.
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On the customer side 15 of the housing 10, as
illustrated in FIG 3, the digital displays 22 and 24
provide the same displays as -the amount of Sale
display 106 and the Amount Tendered display 108,
respectively. Similarly, LED displays 116, and
120 on the custor,ler side 15 of the housing are
activated along with correspondiny activation of the
LEDIs 110, 112, and 114 for corresponding itern, tax
and total information, respectively.
In a specific embodiment, in which the keyboard
14 is adapted for use in a point of sale terminal
involving the sale of ice cream products, all keys
on the keyboard are a flat.touch type which can be
wiped clean with a damp cloth and which have no
openings through which liquids can reach -the switch-
ing mechanisms. Switches are mechanical, rather than
capacitive, in order to minimize accidental activation.
Bill Handling
The construction of each bill belt device is
shown in FIG.4. Each bill belt device includes a
housin~ 122 containing a first and second supply
unstoring reels 124, 126 spaced apart from each other,
and a take-up or storage reel 128. A lower entrance
roller 130 is located immediately inside the housing
122 below the opening 18 and an upper entrance ro].ler
132 is located immediately inside the housing 122
above the opening 18 and above the lower entrance
roller 132. The two entrance rollers are rotatable
about corresponding axes of rotation which are para-
llel to one another and perpendicular to the path
of travel of a bill inserted into the opening of the
bill cache.
A first ~ransparent money belt 134 is secured at
one end -to the ~irst supply reel 124 and is secured
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at its opposite end to the storage reel 1280 The
flrst belt has a portlon extendlng upwardly away from
the flrst supply reel, around the lower entrance roller,
and then along a straight pa-th away from the entrance
rollers and around a first guide roller 136 on a side
of the housing opposite the entrance roller. ~uch
porti.on of the first belt then extends from the first
guide roller down to the storage reel 128. A second
transparent money belt 138 has a portion extending
upwardly from the second supply reel 126 into engage-
ment with a second yuide roller 13~ adjacent ~he first
guide roller 136 and then around a third gui.de roller
140 above the second guide roller. Such portion of
the second belt then extends along a straiyht path
near the top of the housing toward the entrance to the
bill cache and is wrapped around the upper entrance
roller 132 and ls then reversed to travel in a super-
posed relatlon above the portlon of the first web
which extends in a straight path across the top of
the houslng. The superposed path of the first and
second belts is illustrated at 142 in FIG~ 4 and is
referred to below as the viewing path or viewing position.
The first and second belts both extend around the
first guide roller 136 in their superposed relation
and both belts then extend down to the storaye reel
128, in the superposed relation, for attachment to
the storage reel. The first and second belts are
wound in unison around the storage reel when the
storage reel is rotated in the direction of the arrow
at 144 shown in FIGo 4~
Thus, the first and second belts converge at the
entrance rollers which, in turn, apply a slight amount
of pressure against one another so that the two bel-ts
are pressed slightly into contact with one another
as they converge inside the opening 18 to the housing
122. The belts then pass in a superposed relation along
- 24 -
- : ~ , , .
: ~
-the straight viewing path 142 across the upper por-
tion of the housing from the opening 18. The two
belts are held in con-tact wi-th one another along the
straight viewing path 142 as they pass around the
first guide roller 136 to the storage reel 128.
First and second gear wheels 152, 154 are rigidly
affixed to the first and second supply reels 124, 126.
The two gear wheels are the same diameter, and have
gear tee-th of identical size and spacing.
A third gear wheel 156 is rigidly affixed to
the s-torage reel. The third gear wheel has approx-
imately twice the area of either the first or the
second gear wheel, and has gear teeth of the sarne
size and spacing as the first and second gear wheels.
A first supply reel drive motor 158 is rnounted
in the housing 122 adjacen-t the first gear wheel 152.
A first driven gear wheel 160 on the output shaft of
the first supply reel drive motor engages the first
gear wheel. ~he first driven gear wheel is substan-
tially smaller in diameter than the diameter of the
first gear wheel. Similarly, a second supply reel
drive motor 162 is mounted in the housing adjacent the
second gear wheel 154, and a second driven gear wheel
164 identical to gear 160 on the output shaft of the
second supply reel drive motor engages the second
gear wheel.
A take-up reel drive motor 166 is mounted in the
housing 122 adjacent the third gear wheel 156, and
a third driven gear 168 on the output shaft of the
take-up reel drive motor engages the third gear wheel.
- 25 -
,.~, ?,
'
A serve mechanlsm is provided for the bill belts.
A computer issues a number of commands to the
controller.
When the bill belt is operated in a pay-in mode,
its take-up reel drive motor 166 is energized by the
serve to rotate the third gea.r wheel 156 clock~wise
in the storiny direction (wit.h reference to FIG. 4)
which, in turn rotates the st.orage reel 128 in the
clockwise direction illustrated by the arrow 144 in
FIG~ 4. At the same time, the first and second belts
unwind from their respective supply reels and travel
together, in their superposed relation, along the
viewing path 142 away from the entrance rollers and
toward the first guide roller 136. Preferably, ten-
sion is maintained by applying a relatively low levelof energization to the supply reel drive motors 158 and
162 which are electrically connected in series. The
bill is drawn into the opening 18 and between the
first and second belts by the action of the belts
traveling over the entrance rollers and into the
housing along the viewing path 142 to a window 20 in
the point of sale housing~ 10. The window 20 is illus-
trated i.n phantom in FIG. 4. The drive motors are
de-energized, under control of a computer, to position
the bill below the window, for viewing by the operator.
,.. . . .
As bills continue to be drawn into the housing
they become s.andwiched between the belts wrapped
around the stora~e reel 128.
: When the bill belt is operated in a pay-out mode,
its series-connected supply reel drive motors are
: energized by the serve to turn their respective gear
wheels in a counter-clockwise direction in an unstoring
- 26 -
. . :
;. , : ,
7~7
direction (with reference to FIG. 4) which, in
turn, rotates the supply reels in a counter-
clockwise direction, as illustrated by the arrows
at 172 in FIG. 4. Preferably, tension is main-
tained by applying a relatively low level ofenergization to the take-up reel drive motor
166. This travel of the belts causes each bill
sandwiched between them to be payed out through
the opening 18.
In the illustrated embodiment, the bill
belt sensors include outer optical detectors out-
side the entrance rollers 130, 132 and inner
optical detectors inside the housing adjacent
the entrance rollers. The outer sensors can be
a first infra-red (IR) sensor 174 located in
front of the entrance rollers above the opening
18 and a cooperating IR emitter 175 embedded in
the money tray 16 in front of the entrance rollers
and below the first IR sensor 174. The emitters
175 and 177 are electrically connected in a gate-
controlled series circuit path.
~ The outer optic~ sensors are located as
close to the outside of the entrance rollers as
possible. It is desirable that the inner optical
sensors also be located fairly close to the in-
side of the entrance rollers, although they can
be spaced inwardly from the entrance rollers no
more than~the length of a bill being tendered
into the bill cache.
- 27 -
~: , : - ':
, ..
:. . ',:
In the . bill balt, each of the
two ernitk~r and sen~or combinations provide~
~or detacting when a bill i~ pre~erlt between
them. Each ~ensor sense~ ~11 the IR r~diQtion,
transmltted to lt rrom the corre~pondlng emit-
ter whsn no bill i~3 presorlt b~t~s~n them, ~nd
the sen~or produce~ an output 9~ gn~l h~virl~ a
rirst value proportion~l to th~ s~nsed tr~n~
mitted I~ radiation ~or indicatlng th~t no
bill i9 present., WheIl a tendared bill i~ pro-
sent between the sen~or an~ det0ctor, ~ certain
amount o~ IR r~diation i9 tr~n~mlttad through
tha bill p but mo~t transmltted IR radiatio~ i9
blo¢kedO The sensor produces ~n output 3ignal
havin~ a ~econd ralue proporti~n to the redueed
amount o~ ~en~ed tran~mitted IR r~dis~on l'or
indio~ting that ~ bill i3 present" Thi~
capabllity ~ of' the ~en~or~ ca~ be u~ed to
dstJct bills that ~re too }ight ab~ort~re"
eeqO doubla bill~ or bllls that are too l~ght
trEInEllQi88iVe~ ~,qO certa~n oountsr~eit bllls.
r.
`
~': , ' ~ ~ ' :
- . '
~ .: ,
.. . . . .
,, . ,, . ~ ,
. .` : ' ~ ` :` ' '' : `
IR-typa emitters and sensor~ are u~ed ~o t,hat
the bill eacha ~ontrol~ ~are ln~n~itive to
stray ambierAt llght, i.eO, li~sht in th~ vi
ibla sp~3ctrum.
The outer optical sensor~ 174, 175 ar~
u~ed a~ part of' fl mean~ to count bills di n-
pensed as chnnge. During operation in the
pay-out modc, e~ch bill di.spensed to the
oper~ine 1~ i~ det;ected by the out0r opt~cal
~en~ing means. Th~ bill belt~ can be control-
led to dispens~ each bill ent~rely pa~t the
entrance rollers and past the f'ir~t sen~lng
me~ns and into ths money trRy 16; Rnd the outer
sen~ing mean~ ~n detect when each bill ha~
been di~pensed f'rom the openine to provide
dat~ to a counter f`or counting each bill ~o
di ~pen~d~,
Altern~tiveïy; the bill belt~ c~n be
::~ controlled ~n the pay~out mode to f`eed a b~ ll
halrway through th~ op~ning 80 that the blll
rema~ns betbtean the en~s~ance roller~ blocking
the ou$er 3eln80r unti 1 the bill i~ taken rrom
the openlng 'by the cu~tomer. The outer ~ensor
- 3
q
,
.
- . . . . .
, ~ ' :
.
75~
can detect when ~ bill prs~ent bctween the
antrance roller~ i~ taken by a customer and
can produce d~ta fad to ~ countcr ~or countin~
aach ~ill taken by the cu~tomer. Th~ bill
belts can be controlled
~o
:
~:, . ~ .
.
- ~ :
. ~
. .
7~:~'7
in the pay-out mode to feed only the last bill paid
as change halfway through the opening 18. The com-
puter disarms the bill belts after the last bill is
paid out as change, and remains so until a subsequent
arming command from a Total key.
The inner optical sensors 176, 177 can detec-t
whether or not a bill that is tendered into the
opening is actually drawn into the housin~. The
pay-in cycle is activated when the outer optical sen-
sors 174, 175 indicate that a bill is in tlle opening.
If the tendered bill is not detected by the inner
optical sensors 176, 177 within the Q.5 second time per-
iod, counted by the computer a command ls issued for
halting the belts. This restricts the forward travel
of the belts when they are "teased", thus valuable
storage space is saved.
Either the outer or the inner sensing means also
can be used to detect the thickness of a tendered
bill in order to validate a pay-in transaction. Each
IR sensor can indicate the opacity of a tendered bill
between the emitter and the sensor. A valid bill has
a predetermined opacity. If more than one bill is
between the emitter and sensor, or if the thickness
of the tendered bill is not the required thickness,
or if the tendered bill is otherwise not yenuine, the
light transmissivity detected by the optical sensor
either can be too high or too low, compared to a
required range of opacity for a genulne bill.
Third optical sensors are provided by an infra-
30 red sensor 178 and emitter 179 positioned to the rear
of the bill viewing path 142 immediately in front o~
- 31 -
: : :
~ '' ' ' .
the first guide roller 136. These sensing means can
be optionally used to detect the leading edge of a
bill drawn into the bill cache for generating data
to be fed to the data processor to issue a command
for stopping the pay in feed operation.
Coin Cache
FIGS. 6 and 7 show a coin receiver dispenser
and storing device 200 located in the interior of the
housing 10. The coin changer includes a coin sorter
and a coin dispenser. Coins deposited into the single
coin slot 26 on the front of the housing 10 travel
through a Eirst coin guide 502 for funneling the
coins, one at a time, into the top of a second coin
guide 504 having a sloping internal -track 506 for
guiding each coin to a coin sorter 508.
Separate optical sensors, or mechanical or
electrical switches at the coin sorting openings in
the coin sorter can detect when a particular coin
passes into each opening of the sorter for issuing
signals to the computer indicating the denominations
of coins received. The computer, in turn, can provide
for calculating the payment received. For example,
a first optical senso.r 550 is located adjacent the
dime-sorting opening 532, a second optical sensor
552 is located adjacent the penny-sorting opening
534, a third optical sensor 554 is located adjacent
the nickel-sorting opening 536, and a fourth optical
sensor 556 is disposed adjacent the quarter-sorting
opening 538. The optical signal emitted and sensed
by each sensor is blocked when a coin either passes
through the opening or bypasses the opening where
each sensor is located.
- 32 -
.
` ''' ` ~-'' ' `,
.
7~t7
The change dispenser is conventional in struc-
ture and operation, and an example of a coin dispen-
ser which can be used for the purpose of the present
invention is Model 2941 Change Dispenser manufactured
by SCI Systems, Inc. of Hun-tsville, Alabama. Coins
dispensed as change by the coin dispenser generate
data for the computer to provide a running total of
coins available in each column dispenser.
The data processing system also provides for
detecting when a coin overflow condition is imminent.
When a coin overflow condition is imminent in a given
column, the solenoid 562 is energized to pivot the
coin diverter 558 in the position shown in phantom
lines in figure 6 for funneling any further coins that
column into a coin reservoir 266. After the coin
diverter has diverted the coin to the coin reservoir,
the solenoid is de-energized to return the coin
diverter to its normal position, under the action of
the coil spring 264. Coins of a particular denomin-
ation are funneled into the coin reservoir only whenan overflow condition for that particular denomin-
ation is sensed. If coins are removed from a coin
column in the coin dispenser, appropriate data related
to the amount of coins removed is supplied to the
data processor.
Or~anization of Electronic Hardware
With reference toFIG. 10, there will now be gen-
erally described the overall organization of the elec-
tronic hardware contained in housing 10.
The computer comprises a data processor 350 and
a memory,preferably including a R~l 352 and ROM 354.
It is preferable to split the memory into a random
- 33 -
- : :
' ' , .
access portion and a read-only portion so
that software and ~systern constants can be
stored in the read-only memory portion and
thereby prevent temporary loss thereof in
the event of a power failure or the like.
Suitable capacity for RAM 352 is 16K bytes
(each byte being 8 bits). Suitable cap
acity Eor RO~1 354 is 24I~ bytes.
In the illustrated embodiment of the
present invention, data processor 350, R~
352, and ROM 354 and a battery backed RAM~
These products are commercially manufactured
by Motorola and others under the designations
.
MC6800 Microprocessing Unit, MCM 4027 Random
Access Memory, and Intel Read-On~ly Memory,
2708 EPROM) respectively. Motorola has
~:
published a series of manuals describing the
constructions and operation of, and various
uses for,~the MC6800 Microprocessing Unit
:: : :
~ 20 and various~companion products including the
:: : :
MCM 4027 Random Access Memory, an~MC6820
Peripheral Interface Adapter (PIA), the MCM6830
,:
:
~ - 34 -
:
, . , ~ . ,
- ~ :, . :
- i , , - ,
: .. , . ~:
,
. ~
7i~
Read-Only Memory, and an MC6850 Asynchronous Communication
Interface Adapter (ACIA). These manuals include an M6800
EXORciser User's Guide, an M6800 Microprocessor Program-
ming Manual, an M6800 Microprocessor Applications Manual,
and various M6800 Microprocessor Family of Parts date
sheets.
It will be appreciated by those skilled in the art
that -the above-described specific products are exemplary
of various commercially available products suitable or use
in -the point of sale system. The MC6800 microprocessor in-
corporates particular structure for performing certain func-
tions such as input/output functions that are performed by
different structures in other commercially available systems
which are suitable for use with the present invention.
A unibus is depicted in FIG. 10 as bus 356 coupling
data processor 350 to RAM 352, ROM 354, a PIA 358, a PIA
360, an ACIA 362, a controller 364, a controller 366, and a
multiplexer and control electronics 368. Each PIA is fully
described in the above-identified Motorola manuals. Sim-
ilarly, the ACIA is fully described therein, PIA 358 pro
vides an interface between data processor 350 and a control-
ler 370 for the keyboard and the displays, and PIA 360 pro-
_ ~ _
3~
i ~.,
~.. .~ .. .
~' ~
vides an interface for the printer 372 and a modem374. Modem 374 is coupled to DAA 377 so that data
stored in R~ 352 can be transmitted via a telephone
line to a cen-tral data processing system. Multi-
plexer 368 is a specially designed interfaciny device.
Multiplexer
With reference to FIG. 11, multiplexer 368 isconnected to bus 356 to receive addresses and com-
mands from data processor 350 and to feed status
data back to data processor 350. The address bus
portion of bus 356 comprises 16 wires (not incliv-
idually shown). More than 64K separate addresses
can be instantaneously defined by the parallel-by-
bit signals carried by the address bus, each address
is symbolized by a four place hexidecimal number.
For example, in the specifically described embodi-
ment, the address of multiplexer 368 has been
arbitrarily chosen as the four place hexidecimal
number 80El. Numbers that expressed in hexidecimal
form are indicated by the letter H or "$" preceding
the number.
The addresses applied to bus 356 by data pro-
cessor 350 are in accordance with positive logic
format subject to three-state control (TSC). That
is, each of the 16 address bus wires is connected
tothe output of one of 16 three-state buffer cir-
cuits wi-thin data processor 350.
Whenever data processor 350 applies an address to
the address busj it simultaneously controls the value
of an R/W signal to designate whether a read or write
operation is involved.
- 36 -
~.7
~ t~ 7
Multiplexer 368 has circuitry for strobing data
transEers, herein referred to as strobing circuitry
380 with positive logic format.
A suitable arrangement of digital circuits which
is used in the illustrated embodiment for producing
the above-mentioned strobing signals is shown in
detail in FIG. 12. A NOR gate 381 (such as one-half
of type 74LS260) receives five input signals and pro-
duces an output signal that is high (at or near +VI)
only when each of its five input signals is low (at
or near ground). A NAND gate 383, (such as type 74LS30)
receives eight input signals and produces an output
signal that is low only when each of its eight input
signals is high. The above-mentioned input signals
include signals identified as BAl through BA7, (which
are the eight least significant bits of the address
carried by the address bus~, and I/O signal produced
by decoding circuitry. The I/O signal equals 1 when
the eight most significant bits of the address define
the number H80. With gates 381 and 383 being connected
as shown, the output signal produced by gate 383 is
low whenever the address H80El is carried by the
address bus.
NOR gate 385 ~1/4 of type 74LS02) received two in-
put signals and its output is the CSTB signal-which
in when high the computex issues a command to multi-
plexer 368.
The R/W signal is inverted by an inverter 386
whose output signal is applied as one of two input
signals to a NOR gate 387. The other illput si~al for a
NOR gate 387 is received from NAND gate 383. The out-
put signal produced by NOR gate 387 is inverted by an
- 37 -
;,
: :
. ~ ~ .. .
.:
.
: :, ~ `' , .: ;~ ' :
13~ PS ;i'
inverter 388 to produce the RDSTS signal. Owing
to the foregoing arrangement, the RDSTS signal
EQUALS O whenever data processor 350 addresses
multiplexer 368 for a read operation to read
status data.
With reference again to FIG. 11, multi~
plexer 368 has command receiving circuitry 390
that is strobecl by the CSTB signal. A suit-
able arrangement of cligital circuitry which
used in the illustrated embodiment for receiving
commands is shown in detail in FIG. 15. Each
command issued by data processor 350 to multi-
plexer 368 is carried by a portion of bus 356.
The data bus portion comprises either bi-direct-
ional lines for carrying signals identified as
~; BDO through BD7 respectively. Of these, the
::
signals BDO through BD4 are involved in
defining the commands issued to multiplexer 368.
Table l below give the coding for the com-
mands issued to multiplexer 368.
~: :
:,
:::
~: :
-- 38 -
- ~ :
;: :
: . ' ' ' ' .` .
:. '
: , '
' ~ , .,, ~ :. ' . '"
.: ~ `;
~L~ 7'~17
TABLE 1
BD4 BD3 BD2 BDl BDO
X X X H H select belt 74 ($1) as scanned one
X X X H L select belt 76 ($5) as scanned one
X X X L H select belt 78 ($10/20) as scanned one
X X X L L select belt 80 (coupon) as scanned one
X H H X X stop
X H L X X forward
X L H X X reverse
X L L X X unload
L X X X X arm
H X X X X disarm
Command receiving circuitry 300 includes five inver-
ters 391-1 through 391-5 for inverting the five parallel
15 signals defining the commands issued to multiplexer 368.
This signal produced by inverter 391-5 is applied to
the D input of a D-type flip flop 392 (one quarter of
74LS84). An inverter 391-6 responsive to the CSTB sig~
nal has its output connected to the clock input of flip
flop 392. Accordlngly, when data processor 350 issues
an arming command to multiplexer 368, flip flop 392 is
triggered into its set state, and when data processor
issues a disarming command to multiplexer 368, flip flop
392 is triggered into its reset state. Flip flop 392
25 can also be cleared by the B RESET signal carried by
bus 356.
39 -
:..
., : . ~ ~- . -
- ' , . ~ .
': '
, ,
,7~'~
.
An AND e~te 393 i8 re~pon~ive to th~ out-
put ~ignal produced by rlip f`lop 392 an~l to a
F~;l~ s:l~nal. Normally hi~h and i~ low only
ror n brie~ interval ~uch aa ~pproxlmately 100,
millise~ond~ rollow~ng lniti~l application Or
power $o the electron~o hardware. The ~ignal
produood by AND e~te 393 i~ the E~lA si~n~l
~hic~ is a mod~ control ~ignnl~
The ENBA sign~l i9 applied to the clear
input o~ a re~ tsr 394. (type ?~IJS175) corn-
prising f~our D-type ~lip ~lop~ (not individually
3hown). So long a~ the ENBA ~ignal equal~ 0,
thereby de~ining ths di~abled mode, e~ch of'
the rlip rlopa in re8is~er 394 i8 held in t~le
r0set ~tate. With the ENBA ~ignal equaling 1,
register 39~ i9 re~ponaiYe to~ triggering by
'che C~TB s~gnal, with sach such tri~eer cau~ing
tho reglster to be lo~ded with a oommand is~ued
by d~a pro:cessor 350 ~or ~ontrollin~ ~ ~ele~ted
one Or th~ bill a~che~ 74" 76, 78, and 80.
',
:
:
;
Command rece~vine curcuitry 39O rurther
include~ a copy/lateh register 39~ ~type 7475)
compri~lng ~our latch circuits ~not lndlvidually
~hown~, Copy/latch register 39~ r~cie~e~ Y
sienal which equal~ O only durlng interYals Or
time durin~ whl~h an electrlcnl energization
pulse i3 belng ap~lied to cau~e the aoanned
one Or the blll belta to be driven, With the
~Y ~ignal equdiing 0, copy/latch regist0r 395
exhibit~ memory. Duri~g the interv~ls in ~hich
the ~3Y ~ign~l equal~ 1, each Or the rour latch
eircuits in copy/l~t~h regi~ter 395 cople~ th~
output ~ignal Or ~ ~orr~sponding one o~ the
rour rllp ~lop~ ln regiater 394O
Wlth r~0renc0 agQin to ~lgure 11~ multi-
plexer 36B lnolude~ a bolt ~Iect decoder 4OO
~or decoding the bill belt ident~ying portion
o~ eaoh ¢ommand l~ued to multlple~er 36B. A
suitable nrrangement o~ dig~t~l clrcuitry which
~8 u~ed in the illu~trated embodiment ~or
e~e~ting 3uch decoding i~ 3ho~n in d~tail in
~igure 17. An AND gat~ 401 rece;ve~ the
::
,
and ~ signal~ ~nd proàuce~ ~n output ~i~nal
that 1~ ~ppl~ed to Qn AND gate 1~02. The ENBA
~lgnal 1~ al~o applied to AND ~e 402. The
oukput ~i~n~l produced by AND gQte 1~02 i9
~pplied to three inverter~ 1~03" 1~04, and 405.
Inverter~ 403 and 404 produ¢e output 9ign6119
~; ~nd ~5, respectively~ vorter 405 h~
it~ output r~sistlvely conrlected to th~ base
electrodes of` power translstor~ 406 and 1~07.
When power transi~tur 406 i~ 3witched on, it
C0~9Ct~ a sour¢e of' pow~r +V29 ~uitably +12
volt~ unregulated, to one termirlal SMV0 of'
tha ~eries connected ~upply rael drive motor~
ln bill cache 71~o At the 3~me t~me thQt tr~n
~i~tor 406 i8 ~kched on" power tr~lqtor 407
~ swi tched on to connsct the ~our~e o~ power
to on~ te~ n~l TMV0 o~ the take-up driva
motor ln b1ll c~che 74~
During int0rval~ ~a which tha disabled
mode i8 beirae def'lYaed b~ the ENBA si~nal ~,
copy~latoh reg~st~r 395 (rlgure 15~ identi~ies
~ll bel~ 740 In~smuch 89 ANO gate 402 i~
respon~ive to the ENBA ~ignalO however~ nelther
power transl~tor 406 nor power tran~istor 1~07
~witched on in th~ di~abled mode.
,~0
.:
7'~
Decoder l~OO rurther includ~s three d~cod~
ing ~rran~ements that are structurally identi-
cal to eAch other and are sub~tantiQlly similar
to tha ~bove-dsscribed decoding arrangement
concern~ng bill belt 74O ~he only dirrsrence
in ~tructure arl~fls becaus~ thsre i8 no nced
~or the decodin~ arrange~ent~ ror bill belt~
76~ 7~9 and Bo to respond to the ENBA ~i6nal~
Inasmuch ~9 the~e three d~coding Qrrangements
are structurally i.dentical to each other,
C~sc-~1l3 2C
only one Or them i~ An AND gate 1~10 recei~e~
tha CLO and CLI ~ignal~ and produoe~ an out-
put ~ignRl that i8 appl l ed to inverters l~11,
l~12, ~nd 413. In~ert0r~ 411 and 412 produce
output ~i~na~s ~ ~nd ~ re~p~otlvely.
~nvonter 413 h~its output r~ tively ¢on-
~eGted to the base ele~trode~ oP power tran-
si~tors 414 and 415 that control the ~wltch1n~
Or pow~r to the ~upply ~nd take-up dr~vs ~otor~
in bill oache Bo in the 9~m~ man~ler 2~ ~ower
tran~iBtor3 3~o6 ~nd 4O7 do ~o ~or ~ill bel~ 71~.
:
~f3
`
,~ ., ,
'7
Six of the gates shown in figure 16
(which shows the decoder 402) are involved
in detecting whether the existing command
equals the next command. These are exclu-
sive-OR gates 421, 422, 423, and 424 and AND
gates 425 and 426. In circumstances in which
the existing command equals the next command,
the output signals produ.ced by AND gates 425
and 426 each equals 0, two of the control
signals produced by decoder 420, namely,
UNLD signal produced by a NAND gate 428,
each equals l.
The UNLD signal is involved in control-
ling a high-speed dump operation by which a
store owner or manager empties a bill belt.
As a security measure, housing 10 has a
key-controlled:lock (not shown) used for
controlling a KSW signal. An inverter 429
receives the KSW signal. and produces an out-:
:put signal that lS applied to an AND gate 430.
: Owing to the connection as shown between AND
gate 430 and NAND gate 427, the UNLD signal
cannot equal ~0 unless the KSW equals O.
`
::
:: :
- 44 _
A ~,
~ ' ,
' ' ~ ',
When the 3torage r~el ha~ reached it~
maximum diameter or the suE~ply reel~ have
reached th~ir maximwn diame~er, N~ND gate 431
rece~ve~ an RLSC signal produced by clrcuitry
to be de~cribed with refer~!nce ;:o ~igure îg
and ~ha~ rcce~ve~ the CQENQ ~ign~l produced
by lthe c:ircuitry d~cribed ~bove wlth r~f~r-
ence to ~$yure 15. In circum~tsnces in whic:h
the exi~tlng command calls ~or ~ b~ll belt
to unlo~d at a tlm~ while the P~LSC ~ignal
equals O, ~n such cirs~ tance~, ~ND gate~
432, 433, and 43~, which ar~ ~onnected ~n
1:andem ~ shown be~ween N~ND g~t~ 431 and
NAND gat~ 427, c:au~e the IJNLI) ~ ~nal to equal
1. Under the s~na conditionu N~ND gate ~35
rece~ve~ a F~SC ~ign~l al80 p~oduc~d by the
circui~ry s~own in flgure 19~ asld r~ce1v
the c~ucpu~ ~gn~l produced by ~n ~N~ g~t~
436. Con~ider now ~rcu~3tance~ 1~ which
th~ exl~lng comm~nd c~ for a ~i~l bel~
to mo~l~ orward ~t a t~me whll~ th~ FLSC
~ignal equal~ 1~ In ~uch c1rcun st~n~e~ ~
. .~,. ~
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7~
the C~EN1 ~nd the CQENO ~ienals e~ch e~luals 1,
whereby the output 3igna l produced by AND ~ate
1~3~ al~o equ~l~ 1. Owin~; to the connection ~9
~hown Or the tande~ gat0s between AND gate 436
and NAND eate 42~, 'the ~ signal equ~ls 1 in
these circwn~tances.
A ~uit~ble arrangetrlent Or ~uch burf`er
circuit~ 45O u~ad in the illu~trated embodl~ent
i~ shown in d~tail ln f'igure ï 9. As ~ho~,m, two
D-ty}~c ~lip ~lop3 1~5~ and 452 qre includad in
thaso burf'0r c~rcui~ O When th~ ~upply r~Hl 8
Or th~ ~canned b~ll balt3 havc reach~d m~ximum
diameter, its rcver2e l1mlt switch cau3e~ an
s~n~l to equ~l O. Thi~ ~gn~l i9
coupled through ~n RC del~y circuit 'co the
clear input o~ flip ~lop 451. Accordillgly9
whlle the supply reels Elre ~t maximwn diameter"
rlip rlop: 451 is in it~ re3et ~tate cau~ing an
RLSC signal to 9qu81 1 and an ~ ~ign~l to
equal O,. The .f`lip rlOp ~8 trig~ered into its
~et ~t~tc when a con~nand i~sue~ to multiplexer
36B" th~reby cau~in~ the C~TB sign~l to dl~fin~
a po~itive pul9e,: ~t a tlme wh~le the RLSl~J
~ignal equals t tharaby caus~ng th~ CSTE~ ~ien~
,~
~6
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'
.
:
to d~fine a po3itive pul~e9 at ~ time wh~le
the ~W ~ignal equ~l~ 1 ther~by indic~t~n~
that the ~uppl~ reel~ ~re~ not at m~imum
diameter~ .
Simllarly; when the take-up reel Or the
~canned bill belt ha~ reached m~ximum di~meter,
itD ~orw~rd limit ~witch causea an ~3~ ~ignal
to equal O. Th:ls ~i~nal i8 coupled throu~h ~n
RC delay circuit to the ~lear inp~t Or rlip
rlop 452. Accordingly9 while the tQke-up re~l
is at maximum diameterD flip flop 452 i9 in
its re~et ~tata9 causing the FL~C ~ign~l to
equal 1 and ths ~ signal to equal o. Flip
rlOp 452 i~ triggerad into itB ~et Bt~te when
a command i~ue9 ~0 mult~plex~r 3689 there~y
cau~lng the CSTB ~ignal to dc~ine B positive
pul3e~ at ~ ti~e whils the ~W ~ignal equals
1 thereby indicating th~t th0 8upply reals ~re
not at maximum diameter. Th~ above-dascr~bed
rour output: 3~gnala o~ buffer c~rcuit~ 4~O
are di~tributsd to co~trol sl.gnal decoder 42O~
to O~ ~unction ~ircuitry 455 ~gures 11 ~nd
13)~ ~nd to statu3 byte bu~er circuitry 46O
~f1 ` .
r~j&7S
f i gure ~ 1 1 nnd 20~
A ~uitable ~rrangement Or ~uch ~en~or bur-
rer~ u~ed i~ . illustr~ted. The principal
runction o~ the circuitry o~ ure 18 ralAt0~ ~
to ~an~or bufrerin~ tha circuitr~ al~o provides
ror producing the PRST sign~l which ~3 us~d to
initi~lize the ~tates of v~rious b~table cir-
cuits incident to the turning on o~ power. In
this connection, the sensor burrer 465 o~ rigure
18 inelude~ a comparator circuit 466 (t~pe 6M339)
whose output cign~l lc the-PR5T aig~al. The
~nverti~g input o~ compsrator ~ircuit 466 l~
connected to a node 467 o~ a r~ tor diYlder
ne~work eomprisin~ resi~tors 468 and ~69 ~nd
potentiomet~r 470. Th~ non-lnYer~ing input o~
comp~rator cir¢uit 4~6 i8 eonnoeted to ~ posi-
tlve ~eedback ~rral.gement o~ re~i~tors 4~1 and
472. When power l~ turnad onS the Yoltage
level ~t nods 467 o~ the re~ibtor dl~ider nat-
work rAp1dly chan~ea to it~ steady ~tat~ valu0.
On the other hand, a delay clrGuit eompri~lng
a re~l~tor h73 ~nd a cap~cltor 474 supplie~ a
:: : : ~ :
- :
:
:
:
~L~Lr~f~75 ~
rel~tiv~ly ~lowly changing voltage to resistor
47~0 For approxim&tel~ thls rir9t l OO milli- :
~conds af`tar power i~ applied~, the volt~ge at
node 467 exceeds the voltage ~pplied to resistor .
l~72 with the result that th~ F si~nal equal3
O for this brief` :Interval~ ~t t~he end of' thi~q
b~ier interval" whieh end3 ~8 800n Qn ~che volt-
age to rcsi~tor 472 exceed~ the voltaee at node
1~67~ tha ~ signal c~ange~ to the 1 ~slue.,
Tha po~itlYe reedbAek ~rrangem~rlt cau~e~ the
pul~a def'ined by tha PRST ~ign~l to h~ve sharp
riae ~nd ~all t~ma~,,
IdentiGal cornparator c1 rcuit~ 75 and 476
are likawise connected to positiva ~eedback
arrang~ments ~or ~u~ing the output 8ign~ 9
they produce, identlried as DET A,, and DET B9
to havs shsrp ri~a ~nd f`all tim~n~ qhe non~
invurtin6 ~nplit~ of' comp~rator ~ir~uit~ 475
~nd 47i5 Qre coupl~d by reDi9tor8 Or thair
po3itlve f'eedbQck arrangements to the node 467.
The inv~rting input o~ ~omparator circuit 475
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is re~istively coupl~d to the terminal identi- -
ried ~8 DET A-. It ~lll. be recalled ~rorn the
description of the 01lter IR ~en30rs~ set rorth
in the section dil~3cted to the construction Or-
R bill cache" tn~t the emitter electrode~ o~
the rour eml tt~r electrodes ~re commonly con~
nected to thi~ terminalO
While any one Or the ~our sien~l~ SL0
throueh 3~ (rieure 17) equal~ OJ, the signa~
applied to thi~ terminal norm~lly 4 ~ mors po~i~
tiv3 than the steady state vol'Gaee at node Ij~.67,
Ir a bill i~ present ln the ~canned bill belt
batwe~n its IR emitter ~75 and it~ sen~or 171~5,
thls sien~l becoms~ 10~18 po~i'cl~e, with the
result that the output signal DET A becomes
equal to 1. In like manner, the inYerting .
input o~ comparator circu~t 476 ~ re~i~tively
coupled to re c e ive a ~ l gn~l ~ppl i ~ d to the DET B-
t,erminal O Th~ ~ign~l i3 controlle~l by ~he
~nner IR sen~t)r o~ the sGannsd blll belt to
be normally more posititr~ than the 3t~ady state
oltags at node 467~ a bill i9 pre~ent in
the scannod bill belt, bekween tt~ IR emitter
177 ~nd it~ ~ensor 176" ~ ignal becomes
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. ~
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f'~'7
le8~ po3itlve with thc result th~t the output
signal DET B becomes equnl to 1. Anothar co~
parator circuit 477 has a ~ingle po~itive reed-
b~ck resl~tor nnd ha~ it~ nonin~ertin~ input
connected to the tnp Or potentlomet~r 1~70~
The invertine input Or compnrater circuit 1-1.77
i8 resi~tively coupl~d to the DET B~ terminal.
Owing to this ~rraneement9 whencver the inner
sen~or o~ ths sc~nnsd bill cache detects a
double bill, the DET D s~g~al becomes equal to 1,
The lo~c circuitry 455 cooperate~ with
other ~ircuitry de~cribed below ~ith re~erence
to ~igurs 14 to ga~rato ~n interrupt reque~t
supplied to data pro~essor 3~0~ The DET A
~ignal ~8 inverted by an inv~ter 480 who~e
output ~ign~l i9 applied to a delay clrcuit
gen~rally 1d~nti~ied at 4~1, The output B~ gn~l
o~ delay circuit 481 iR invert~d b~ inverter 4B20
One input o~ exclu~ive OR gate 4B3 iB diractly
connected to the output algn~l o~ ~nverter 482
and the ~ther lnput is coupled through d~lay
circuit 4.84 to receiYc the ~ame cienal. Thus~
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whenever the DE~ A si~nal chan~3e~ rrom O to 1
or change~ f'rom 1 to O, the OUtpllt signnl pro
duced by gate 483 is po'3~tive.
NOR gat0 485 respo;nd3 to each positiYe
pulse to cau~e itB output si~;n~l, (~)
to a ne~sntl~re puise. Whenever the leadin~ edgle
or trai lin~ edg0 of' R bill passes the outer
sen~or of' the sG~nned bill belts) the ~;~
~ienal will change rrom its normal 1 to a tem-
porary O and then return to it~ normal 1~
An arlrangsment ~truc'tur~lly identical to
the f'oregoing parf'orms the same f'unction with
re9p9ct to the innsr sensor. Whene~r a chan~;s
f~rom either a 1 to ~ O or rrom ~ O to a 1
occurs in . the D13T B ~gnal " a n~eative ~oinE
pul~e is de~ined in the ~ signal. A
.
BSY ~i&nalO produoed by ~ircuitry to be ~le~
scribed with ref'erence to i`~gure 72, is
t applied to ~n inYerter 486 whose output i~
:
coupled t~rou~h ~ dif'ferenti~ting circuit
:
enerally ident~ried at 1~87 to NOR eate ~l~5-
'i
When~ver the ~BSY ~ign~l ~hang~s ~rom 1 to Og
- ~ negative goine pul ~e i~ de:f'in0d ~n the ~RiF
ignal.
~: i 5
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The ramaining circuitry shown in ri~ur0 13
provide~ s~parate sienal flow path~, ench o~
which i,~ ~tructurally identicAl to the sien~l
path de~cribed above with ra.~erence to the
BSY ~ignal ~ ~o that the ~ sienal i9 re~
sponsive to the ~ and tho RLSC ~ nnls in
tho ~nme manner that i~ responaive to the B~Y
~ignal.
Circuitry 490 receive~ sevor~l input
ignals, lncludi~g the 3~ signal produced
by OR funct~on circultry 455c ~nd ~pplleg two
output ~ienal~ identi~led R8 ~ and ~ to
~wo Or the wires o~ the bus 356~
In ~lgure 14 a D-type ~lip .~lop l~91 has
a direct Ei~ t input that reoeive~ tho ~ T~
signal 80 that ea¢h time a neg~ti~e ~oing pul~e
i~ de~1ned in the ~ signal~ flip rlop
491 is pl~ced into its ~et ~tats~ A NAND
gata 492 receives the QUtpUt ~ignal of ~lip
~lop 491 and ~n T~ n~l produced by in~erter
4930 The input o~ lnverter 493 i9 GOllneCt0d
to one o~ the wir~s Or bu~ 3~6 to roceiv~ an
IRQ INT a ~lg~l. Norm~lly, the l~tter ~ign~l
.
~3 ~ .
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~ 7 ~t~
equQls 0; it equal~ 1 only when data proce~sor
3~0 acknowled.i3es an lnt~rrupt reque~t and s~ek~
to ascert~in the identity of the peripheral
that ~enerated the interrupt request. A D-type
rlip rlOp 494 ha~ a direct sat input that re-
eeives the sl~nal produced by NAND ~ate ll.92,
Thu~D rlip rlop L~91~ i9 plaoed into it~ ~et
~tato ~ach time a negative goine pul~e iq
de~ined in the ~ signalO An inverter ll95
~roduces the ~ ~ignal which, while it equ~ls
0~ indlcate~ that an interrupt requa~t i~ pend-
ingO When d~ta processor 350 ~cknowledges the
interrupt request by cau~in~ ~ po~it~ve golng
pul8e to be de~ined in the IRQ INT A ~lgnal,
an inYerter 496 enabls~ a three ~tat~ gatz 497
to~drive one Or the w~ re8 Or the data bus poro
tlon o~ bu~ 356. Whlle 80 en~ble~ ree-
stat0 gate 497 cau~e~ tho ~ ~ignal to equal
O which s~rvas to lnform data proceqsor ~50
that it ia multlplsxer 368 that i~ ~enerating
the interrupt raquest,
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One of` the wires Or bus 356 c~rries a
~ ignal produced by data proce~sor 350.
Norm~lly7 this sienal equals 1. Fllp f`lop
494 ha~ ~ direct clear input ~or placlng rl$p
rlop 49L~ inko it~ reset at~te each time tha
~ ~ien~l equals 00 Flip ~lop 1~94 l~
normall~y tri~5gered into ~ lta rcset st~te by the
trailing edge o~ the pos:ltiv0 pul~e derined in
tho ~5 ai~nal w}ien d~ta proc~or 350 ~eek~ to
ascort~in the ~dantlty Or the ~ource Or the
interrupt reque~t4
A~ter datQ proGessor 350 h~ ~cknowl~dgsd
Qn i~t~rrupt requast and ~cartainad th~$ it
i8 multiplexer 36B that i~ th~ ~o~rce Or the
inter~pt requ~t, data proc~s~or ~50 exe¢ut~
a re~d ~ycls oper~tlon during whiLch ~tstu~ dat~
i9 erltered lnto d~ta proce~o~ 350. ~n this
connection, ~on~ld0r ~igure 20. It will be
ra~alled ~rom tha de~oript:Lon Or ~igure 1 ?
th~t the ~ ~i~n~l equal~ O whlle ~ata
prooes~or 350 causes the R/W ~ignal to ~qual 1
~nd simultaneously addres3e~ multiplexer 36~.
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The ~ ign~l i9 ~pplied to two invert0rs
500 ~nd 501 each of whlch controls a group ~r
four three~state gate~. The ~ormat Or each
statu~ byte ~pplied to the dat~ bus portion
bu~ 3~6 i~ evident rrom rigur~ 20~
Thc r~maining circuitry in¢luded ~ithin
multiplexer 36a provides ~ time-~hared ~ervo
~ubsystem ~or.the bill caches~ Thi8 i~ubsys~em
includes, ~9 gen0rally ~hown in ~igure 11 J
~ervo r~te ~eleat circuitry 505, tach ~el~ct
circuitry 510, and ~umming ~unction ~elect
c~rcuitry 515,
A ~uitable ~rraneement o~ tach ~elect
circuitry 510 u~ed in the ~llustrated embodimen~
i8 3hown in det~il in ~igure 210 It will be
recal1ed rrom the de~criptisn o~ ~igure l~ that
each bill belt lnclude~ a tachometer~ In ~ieure
,, ,
: ~ 21~ th~ ~ignal8 prod~ced by the:four ldentical
; tachomet~r~ i~re identi~ed as t~h 0 Sth~ on~
:
: ; ln bill b~l:t 7~, t~h 1 ~the one in bill bolt
: :
76), t~ch 2 (th~ono in blll belt 7B)~ and ta~h
` ': 3 (the GnO ~ln bill belt 80)~
: ~
:
:~:
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.
When the exi3tin~ comm~nd identi~:l e9 bill
bslt 7l~, the 3~5 ~lenal equal~ O. An ~et 516
receiveR thc ~ ~i~snal at it9 eate electrode
and is ~witched on wh~la t,he ~ 5 a~gnal aquals
O. The source and drain electrode~ of` ~et 516
~re connected in a 9erit39 circuit path between
tach O and th0 inv3rtine input o~ an ~nalog
operational ampli~ler 5t 7 whone output ~ iden-
ti~isd ~ ~qFB1 (AFB is an acron~n f'or Analog
Feedbaak). A~ shown~ L~ conv~alt~onal ~ervo
componc~tion net~ork 518 i3 ~ro~rldad to oontrol
the gQ~n proYlded by amplirier 517. An lnv~rt-
ing un~ty gain clrcuit eompri~ing opel~ational
ampll~i~r 5t 9 re~pond~ to th~ AFB1 ~i~n~l ~o
produce ~n AFB2 s~gnal which i9 t~O degree~ out
o~ phase ~rom the AFBl ~ienal O
Three other ~et~s~itched ~erie~ oircult
paths, ~ch identical irl structure to 'che abo~re
de~cribed ~19ri98 circuit path ~or tac~ O, ~ro
provlded ror Belectively ooupling the t~¢h 1
through tach 3~ als to ampli~ies~ ~179
~7
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Thes~ three aerls~ cîrcuit path~ are controlled
b~J the ~ ~i~nal ~ the ~ 9 a~d the ~ si~nnl,
rsspectivaly.
Circuitry 505 ~hown in ~igure 22 13 con~
trolled signal~ 1~ and ~ nd produca~ an
an~log ~gnal AIR ~an aocronym ror Analoe Input
F~ate ) 1~ The tim~-sh~red ~ervo ¢ontrolY the
an~ular veloolty o~ a bill. c~che drivc motor ln
Accordan¢e with~a magnitude Or the AIR ~ignal.
For the high ~pe~d dump operation~ it is do-
sirable that an~ular veloci~y be relat:lvely
hl~h; ~ lower angular velocity i9 more desirable
in oonn~ction with either of' the pay-iLn or
pay-out moda~ Or tho bill caches.
sn~l equala O whil~ the 8e-
curity ke~ ~w~ toh i9 actuated and the e~isting
con~n~nd 1~ ~n unlo~d ~onnnand. An FET ~;21
reoeivs~ the ~ ~i~nal at lt~ gate ~leotrode
~nd is switched on wh~l~ the ~ 3ignal equal~
O, l~e source and drain electrode~ o~ FE:T
521 ~re conneoted in a ~eries ol~rcuit path
between +V1 asld the lnvertin~ lnput o~ an
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oper~tional ampliri~r 5220 ~he gain Or ampli-
rier 522 i~ controll~d by a conv~3ntional reed-
back circuit e;enea: ally ~ndic~ted at ~23. Th0
output ~ign~l produced by amplirier 522 i
appli~d to an inteerator generally indicated
~t 521,~. Suitably,, the R~ time constant Or
intee r~tor 524 1E~ between a hnlf' a second ~nd
one ~ecorld. The output sign~l producsd by
intcgr~tor 524. i~ applied to an invertingD unity
gain ~mplirier ~enar~lly inc'lcated at 525 who9e
output ~ignal i~ the AIR signal~ The AIR
~ignal i.8 appllsd ~l~o to one end of a ~eedback
re~istor ~26~, ths other end of' whl~h is con~
n~cted l;o the imrerting lnput of' ~mpli~ler 522~,
The ~R, ~l~Snal ~qual~ O wh~lo th~ ~s3ci~tlng
command î~ eith0r ~ For~ard co~na~ad or ~ Rsver~e
(normal spe0d ) command. An FET 527 r05eiv
the ~ ~i~nal 0.t ltg Essto ele~trode ~nd h~s
lts source ~nd draln electrode~ oormect~d in a
~er~e~ cirouit path between a potentiomet~r
~28 ~d ~he inv~rting inpllt o~ ampli~ier 522.
" ~ ,, .
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FET 527 ia ~witched on only while the ~ ai~nal
equal ~ O .
Whilo neithsr tha ~1~ nor ths ~ si~n~ls
equal~ O~ th8 AIR ~ignul has ~ ~teady 8t8t~3
~ra1ue o~ O. When a command i8 decoded to ~ause
th~ 3n~1 to ~hange l;o ~, ~'ET 5~7 swit~h~
on, thn mugnitude Or the AIR ~ignal incrsase~
po~it~ v~ly to d~rln~ A ramp ror an int,erlral
who~e duration is ~ixed by the time oonst~nt
of irltegrator 5~ At the end o~ that interval ~,
'che lalput lto in~egrator 524 will be slull O Ow~ng
to th0 momory pro~ided by integr~tor ~;246 how~o
ever9 the llIR ~l~al will have a po~itiv~
value proportiorl~l to the ~etting Or potentio-
meter 5281~ In a simil~r m~nner~ whon ~at~
proce~sor 350 ls~uea ~ Stop cormnand th~t ~
decoded to oau~ lthe ~ ~grlal to change bQ.ck
to ~, th~ AIR ~ignal ~ e~in3 a d~c~ndlng
ramp to l.'ca ~t~Ady ~tato ~lua Or O ~olt~.
The ~ame ki~d o~ d~nE~ ~d tr~ r~mp
ia d~fil~ed 1~1 roopon~0 to ~ ~yola of ~he ~
81~nal" tho o~l~ d~rrero~aoe ~ro~s th0 ~oregolng-
re~idin8 lrl the~ ~agnitude Or the AI~ nal.
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llhe output ~ignal produced by ~nverter 52l~
i~ al~o applied to a circuit generally indicated
at 529 thnt i~ ~ub~t6ntia:11y the s~me in con~-
st~uctlon arld operltien a~3 the circuits describe~
above with re~erence te r Lgure 180 ~lrcuit
529 produces the B~Y ~ign~ nd ~n invert~r 530
re~ponl3iYe th0reto produ~l~s the ~ sienRl~
q~he B~Y and ~Y ~ign~l~ provld~ 9tatu8 i~lrOrma-
tion ~ to whether the timo ~hAr0d ~ervo 13
ener~Sizing a drive rnotor~
A suitable ~rr0.ng~ment ~o~ s~ing J-rnction
aelect clrcultr~ 515 uaed in the illustrat0d
embodlment iB ~hown in det~ll in ~gure 23.
Durlng a pay-~n mode o~ op~ratlon, the time
~hur~d ~arvo~i~ u3ed to coxltrol the ~alo~; Y13100~ ;
iby Or the take~up r0el drl~ motor in the
s~anned one o~ the bill caahe~. At the 9ame
time, an open-loopO rel~ti~r0'.~ low~ sl
en~rglzation oP tho ~upply re~l drivo motor o~
the 301eoted b~ a~he o~ ln tho op~o~ite
dirootion ~o Q~ to Pl~int~l~ wob to21~ionO A
po~er tran~i~tor 535 ~oop~r~toa ~flth ~our of' ~-
".
th~ pow0r tr0Jn~i ~tors ~bo~ iguro 23
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to en~rgize the t~ka-up reel driv~ motor in
the selected bill cache. A power trunsi~tor
536 cooper~tes with th~ rsm~iniz~g rour o~ th~
powcr transi~tor~ ~hown in rigure 23 to erler-
~ize the ~upply rael drive motora ~n the
~el~t~d bill oaohaO
Whil e the exi~t~ng ~ommand ia a Forward
~Q~nand~ power tr~nalstor 535 operat0~ a~
part o~ the tlm~ ~hared BerVO wh~re~ power
tran~l~tor 536 op~rates on ~n open~loop basis.
On the hand9 while the exl~ting co~n~nd i9
either ~ Rever~e or ~n Unload con~nandD power
tran~i~to~ 536 o~rates n~ part Or the time
~hared ~ervo where~s power tran~istor 535
operat~ on, a~ open loop ba~
While pow~r tran~iator 535 oper~tea
part of` the tlmo shared ~r~o, tb0 s~nming
~un¢t~on Iror the time ~harsd servo i~ ~ In'
sun~aln~ tloJa 537O B0tw~0n ~In~ uu~ning ~U~6-
tion 53'1 ~d th~ b~ elootrod~ o~ po~sr tr~n-
8i8tor 535 thor~ r g~ner~
indl~at~d Qt 538~ Wh~l~ pow~r tr~n~i~tor ~36
op~rat3~ ~ p~rt Or tho tiD~ !hared s0rvo~ th~
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3umming ~unction for the time shared ~ervo i9
1 Out ~ summing ~;~etion 539 . Between ' Out BUm-
ming junotio~ 539 arld the ba~e ~lectode o~
power tr~llsi~tor 536 there i~ ~n ampll~ler
gener~lly lndie~ted at 540.
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The pres~nt invention i8 ~hown Dnd de-
~cribed wi th two alternate mode~ o~ plem~n-
tation - a ~o~tware mode And ~ hardware ~ode,
Both ~odes arfl shown in conjunction with A
microproce~qor~ At the t~me thi~ application
i~ fil~d~ the inventor~ do not know what mode
of` imp~ementation will be employod. It i~
very po~ible that the ~re3ent invention will
be mnnuractured and 90 d a~ H ~tand-alone
davice to interconne~t with exi~t1ng in-place
point-or-~ale te~inal~
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Accordingly, the inventors recognize that
those skilled in the art to which -the present
invention relates understand that there are
many variations possible in the structures shown
and described in this application. These struc-
tures are shown as illustrations only and not
in limitations of the inventive concepts des-
cribed herein.
Accompanying the Specification are the
following attached Appendices:
Appendix A consists of ~ pages of drawings
showing the circuit boards for the digital con-
trol of the bill belt mechanism for a ~our belt
device embodiment of the present invention.
Appendix B is 11 pages of drawings showing
the circuit boards ~or the analog control of
the belt mechanism for the four bill belt embodi-
ment of the present invention.
Appendix C shows the flow charts for a
microprocessor embodiment of the present invention
showing the interface between the microprocessor
and the bill belt control mechanism hardware
implementation.
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