Note: Descriptions are shown in the official language in which they were submitted.
Title of Invention 20 1 4 962
Color Television Set
Detailed Description of the Invention
The present invention relates to a color television set operated by a dual
processor, more particularly to a television set which provides realistic color tone
and sound to TV watchers by selecting an appropriate video and audio output,
stressing a specific tone of color and sound in accordance with the contents of a TV
program (such as movies, drama, news, sports).
- In the conventional television set on the current market,
multi-purpose super impose .techni~ue is utilized to transform the
channels selected by a remote controller, volume-varible graphic
design and the hours by timer into character information by means of
a program and carry them onto actual visual signal, thereby repeate-
dly displaying them on screen.
~ owever, as the scope of said function is extremely limited
and simple, it has been used only for hlgh-priced color-television
set. Furthermore, it is inconvenient for watchers to manually and
repeatedly adjust the terminals of several color control units including
contrast, brightness, color, tint and sharpness, while observing
color balance of the screen.
~n addition, as audio circuit is merely a means of listen ~ to
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various sounds of all broadcast programs within a common frequency
band, it sounds so monotoneous, being little removed from a
conventional concept.
Accordingly, manufacturers as well as consumers have desired for
the appearance of new high-tech television sets which allow novel
image and realistic mood.
In order to overcome such disadvantages of the conventional
television set and offer a hightech television set free from a
conventional concept, the present invention is to provide a multi-
function television set, displaying a specfic channel stored in
fniCR
program at a prearranged time by means of remote-controlled micom~
having memory device store wedding anniversay or birthdays and
display at a designated date or its preceding day, and utilizing various
document memory functions for daily life, such as telephone
directory or address bank. It also takes the brightness signal
and frequency characteristic as a mean value for standard screen in
accordance with the type of TV programs (sport, music, movies, drama,
news, etc.) and selects the hard or soft color tone output of
televised video by means of memorized program in accordance with the
type of TV programs (sports, music, movies, drama, news, etc ; ).
In order to generate the audio output matching with said video
screen, by extending the memory capacity, it takes the tone color
frequency depending on the kind of TV program, as a mean value on
the spectrum and stores them in memory, to have the adjusted data of
audio quality selected by remote controller so as to be suitable to
the contents of televised program.
In order to accomplish above objects in the concrete ways, this
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invention is composed of a micom in common to selectively control
pursuant to the mode selection signal of a remote controller;
dual-process total-processing service function unit to display the
characters for reserved watching, telephone directory, birthday,
wedding anniversary in memory at a desired time ; video band
selection processing unit utilizing PWM control method to output the
color date stressing a specific color tone corresponding with the
televised screen; audio selection processing unit to select an
appropriate audio data in memory for each type of T~i program, such as
show program, drama, movies, sports program.
The detailed composition thereof may be shown in the accompanying
figures
Brief Description of the drawings
Figure 1 is a data processing block diagram of service function
unit operated by dual process of the invention.
Figure 2 is a circuit diagram of a picture band selection unit
of the invention.
Figure 3 is a circuit diagram of a sound band selection unit of
the invention.
Figure 4 is a flowchart of each service function.
Detailed Description of the Preferred Embodiments
Figure 1 shows a data-processing block diagram of dual process
total-processing service function unit having a memory mapping program to
store the date for prearranged watching, telephone directory,
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birthday, wedding anniversary, and display characters on the screen
at a desired time.
Screen control unit (7), syncronous signal generation circuit(6)
and input-output control unit(2) are mutually connected through data
address bus with central control unit (4) and operation memory (10-
12). Said input-output control unit (2) is connected with micom
(1) receiving the signal of a remote cont~oller (3) to exchange data
signals ( RxD, RxC, TxD, RTS ) and also connected with signal
generation circuit (6) to apply interrupt signal thereto.
Interrupt(INT) control signal of said central control unit(4) is
gone through decoder(~) to common clip enable terminals (CE) of said
operation memory (10-12).
Decorder (5) which transf~m coded signal lnto a correspondent
control signal is connected to incentive signal generation (6),
input-output control unit(2) and common enable terminal (CE) of
screen control unit(7). Said central control unit (4), in case of
having no designated signal from micom(1), receives a periodic signal
from syncronous signal generation circuit (6) to periodically check
said operation mermories (10-12) and outputs a reserved data to
screen control unit(7) in accordance with an assigned address,
thereby displaying the data stored in said operation memory (10-12),
such as programed birthday, wedding anniversary, telephone diretory
on the screen.
As shown in Figure 2,in the video band selection processing
unit, clock terminal (CL), enable terminal (CE) and date terminal (D)
of said micom (1) syncronized by a signal forwarded by a remote cont-
roller (3) are connected through pull-up resistances (Rl-R3) supplied
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by the electric power (Vc) to D/A converting unit (17), transmitting
by way of internal IM bus interface to 8 bite D/A converter (20).
Out terminal (Xout) and input-terminal (Xin) of said micom (1) are
connected with oscillator (Z) and buffer (16) comprising of condensor
~C1-C4) resistance (R4-Rs) and transistor (Q1). Said Xout is
arranged to convert through clock driver (19) of said D/A converting
unit (17) to said 8 byte D/A converter (20). Each Xout of said
D/A converter (17) is linked to resistances respectively ( R6-Rs,
Rs-R11, R12-R14, R1s-R17, R1s-R20 ), further connected through
low-pass filter unit (22) composing of condensors (Cs-C16) and coils
(L1-Ls) to brightness terminal (B), contrast terminal (C), color
terminal (Co), tint terminal (Ti), sharpness terminal (sh)
respectiely, thereby selecting a color tone corresponding to the
mood of televised program by video mode selection key on said remote
controller (3).
As shown in Figure 3, the sound selection processing unit is
composed to select a mean value of phonetic pressure for a proper
sound corresponding to the contents of a televised program.
Audio signal of swing port (AD1, AD2) of said micom(1) is
connected to audio signal switching IC circuit (2~), which is
then linked to high-pass band (26), medium-pass band (27), low-pass
band (28), medium to low pass band (29) of equalizing circuit (25)
which is classified by the level of phonetic pressure, and the other
end of said band (26-29) is applied by left and right phonetic
signals (L1, R1), thereby selecting a sound appropriate to the
atmosphere of TV program by audio mode selection key placed on the
remote controller (3).
- ~ 20149t~2
The present invention according to above-described composition
is operative as follows.
In operating a TV set, as the switch of a remote controller (3)
is touched, a remote receiver of micom(1) converts received signals
into digital ones which are readable by input-output control unit (2)
and inputs them to input-output control unit (2).
Then said input-output control unit inputs interrupt signal
(INT) into control processing unit (4) to check the programs stored
in operation memory (10-12) through address bus.
In case of receiving no interrupt signal (INT) from
input-output control unit (2), in accordance with a periodic signal
(INT) generated from syncronous signal generation circuit (6),
central processing unit (4) checks EEPROM (12) pursuant to the
designated address to output the reserved data.
Supposing that a channel conversion signal is inputted from
remote controller (3), central control unit (4) operates EEPROM as
above explained, so that central control unit (4) converts the
screen display according to said channel conversion signal input
from remote controller (3).
When a optional code from remote controller (3) is inputted to
micom (1), said micom (1) converts it into a code ruled by central
processing unit (4) and creates transmission clock RXCA (receive
clock at sio)and its Xout transmits outgoing data RXDA by one byte
to input-output control unit (2).
As a data from said micom (1) is inputted to input-ouput control
unit (2), interrupt signal is generated to suspend the routine
performed by central processing unit (4) and perform receive
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servlce .
In receiving from micom (1), RTS of input-output control unit(2)
to perform service routine of receiving data pursuant to the
generated RTS signal, creates receive clock TXCA at micom and receive
incoming date TXCA by one byte.
Namely, when input-output control unit (2) has a data
transmitted from micom (1), interrupt signal (INT) is automatically
produced to receive a data from service routine of central processing
unit (4).
At this moment, receive service notifies input-output control
unit (2) that is read mode by 92nd address among I/O ports designat-
ing input-output control unit and receives data by 90th address.
In transmittal, it notifies input-output control unit (2) that is
write mode by 90th address and transmit data by said 90th address.
After such transmitted data is inputted to receiving buffer of
said input-output control and all recorded, while syncronizing RXC~
or TXCA, central control unit (4) lets input-output control unit (2)
produce RTS, forwarding low-level interrupt signal to micom(1).
In receiving a data from said micom(1), central control unit (4)
decides whether to store on RAM or EEPROM of operation memory (10-12)
the data recorded on buffer of said input-output control unit (2)
and generates vector address to store it through date bus.
Data stored on said operation memory (10-12) through data bus
is then inputted by enable signal (CE) of decoder (5) to screen
control unit (7). Said central processing unit returns to the
step prior to service routine and resumes the suspended rountine.
RAM of said operation memory (10-12), utilizing SRAM with 8
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byte of COOO-DFFF alloted, is used to temporaily store the data
readed from input-output control unit (2) or to arrange data by
storing altering, deleting or newly entering the entire data EEPROM
of said operation memory (14) with 8K byte of FOOO-FFFF is used to
permanently reserve the data to be stored.
When data transmitted through data bus is inputted to said
screen control unit (7), the input-output part using AO-A3 address
makes access to screen control unit (7).
For exanple, if port AD, H are assigned, port O of said screen
control unit (7) is assigned on address line of A0, A1, thereby
accessing video RAM (8) subordinate to said screen control unit (7)
and having CSR, CSW made of A2-A7 and IQRD, RD & WR decide read or
write mode to output R.G.B signal.
Said screen control unit (7) according to this invention, in bit
map method, may use video RAM (8) up to 128K byte.
Screen control unit (7) constitutes an incencitive of R.G.B.
output by comparing vertical or horizontal signal, and switches
TV signals by means of VS signal.
Said video RAM (8) allots 32K byte per each screen and regards
it as one page. Page 0 is for read and write of data to be
actually displayed, while page 1 is to store the style of charater
received from central control unit (4) at the beginning of program.
Character or picture type of RGB signal is outputted through
internal data bus by a code designating the color on page 0 to
display the screen.
Flowchart in Figure 4 further describes the above process in
more details.
As a data is inputted by remote control, said screen control
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unit (7) makes YS signal high, cuts off the signal of screen
control unit (7) to be outputted to a TV set, and initiates said
central processing unit (4) and operation memory (10-12). It
then sets the initial value of RAM of operation memory (11) and
retrieves whether system is normal.
In case that the program is found abnormal, it cuts off the
program, while if it is normal and any assigned program exists, it
turns on the power of television and performs the next operation.
Namely, upon receiving remote control signal, central control
unit~4) reads mode at RAM of operation memory (10-12), branches off
register according to the mode value and turns on the main power.
Thereafter, central control unit (4) judges TV/AV mode,
reserved watching mode, telephone directory memory mode, birthday
or anniversary reservation mode.
If a selected mode is TV/AV mode, after completing the process
shown in Figure 4 (D), it checks whether it is reserved and
records the altered data entered from remote controller (3) or
outputs the stored data.
Figure 4(E) (F) shows the procedure of altering and reserving
the channel data stored on EEPROM of operation memory (12).
Numeric channel data includes data such as telephone number,
birthday, anniversary depending on the mode selection.
Accordingly, once the state of system is confirmed in the
initial routine stage and a reserved data is retrieved, entered data
is outputted through respective routine, as shown in Figures (E) (F)
and displayed on CRT ( 15) through said screen control unit (7) and
switching part (14).
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For example, Figure 4(G) shows the program for displaying the
data of birthday or anniversary. Once the appointed data is read
from data address of EEPROM, the data is outputted at micom (1)
through central control unit (4) and input-output control ur.it (2).
Accordingly, message data is displayed as many as the number
of data by message key, micom(1) comes melody unit (1~) into action,
and screen data is displayed on CRT(15) through said screen control
unit (7) and switching part (14).
In case of having the displayed data on he screen without
interruption, RAM of said operation memory ~11) is read as shown in
Figure 4 (H).
According to above-described process, this invention provides
multi-function such as reserved watching, memory and display of
birthday, telephone number and anniversary. As shown in Figure 2,
it also provides video selection processing to stress a specific
color tone of screen by selecting as hard or soft the color
corresponding to the mode of broadcast program (sports, news, drama,
music, movies). Data program mode is divided into Standard, Dark,
Brilliant, Soft and Manual, each of which has an appointed code with
a specific amount of brightness, contrast, color, tint and sharpness
to determine the color tone. Code decision is designated
depending on the mode, based on the address installed within micom
(1) .
Table 1
bright contrast color tint sharpness
201~96~ `
Standard 31 39 32 34 33
Dark 15 18 15 20 17
Brilliant 45 50 48 52 56
Soft 24 32 28 35 28
Manual x x x x x
In the above table, X is an example of optionally designated
step. When a news program is on television, stand type is
selected by remote controller (3).
Then micom(1) receiving control signal, designates the output
address of D/A converting unit (17) for control signal having above
amount of brightness, contrast, color phase and packing as O, A0,
A1, A2, A3
Table 2
¦X¦X¦X~1¦0¦D5~D4¦D3¦D2lD1¦DOA3 A2¦Al~AO¦O¦
Once a output part is designated, said micom (1) designates
output step of PWM signal. Supposing that brightness control
signal level for standard mode is designated as middle level, 31th
step among 64 steps in said micom(1), the data code "011111" is
outputted through data terminal (D).
If contrast cortrol signal level is designated as 39th step,
data code "100111" is outputted. If color control signal level
and tint control signal level are designated as 32nd and 34th
respectively, data code "100000" and "100010" are respectively
outputted.
In such ways, individual step for dark, bright, soft and manual
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type is designated and the manul type is designed to adjust the
features of color tone depending on the optional selection of
watchers.
Above-selected mode data together wich control signal outputted
through clock terminal (CL) and enable terminal (CE)of micom (1), is
sequently entered through data terminal (D) into said D/A converting
unit (17).
4.19MHZ of signal generated by oscillator (Z) is outputted at
Xout of said micom (1) and then inputted to clock drive~19) of D/A
converting unit (17) through buffer (16).
Then said IM bus interface unit (18) of said D/A converting
unit (17) applies a series of incoming step data into 8 bit
converter(20).
Said 8 bit converter (20) oscillates an appointed step data to
4.19 MHZ of signal inputted through clock driver (19) and converts it
into PWM signal.
Said converted PWM signal is outputted to each Xout. Namely 8
bit converter (20) of said D/A converting unit (17) converts the
left side of output as a step designated by micom (1) among 64 steps
into PWM and outputs it through buffer.
For example, assuming that bright contol signal level for
standard type is assigned as step 31, byte data code "011111" is
converted into PWM signal and outputted.
Thereafter, low-pass band filter unit (22) is filtering the PWM
signal from 8 bit D/A converter (17) to output pulsating current to
be entered in croma signal unit (23).
Going through above process, while a designated step of contrast,
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color, tint, sharpness for standard type is outputted, an amended
signal is outputted onto the screen.
Depending on a watcher~s preference, the band of field signal
to be displayed on the screen can be selected to show more realistic
picture.
Sound selection processing is arranged to respond to the
circumstance of broadcast program as shown in Figure 3.
As soon as audio program key on remote controller (3) is
touched in ord~r, the micom (1) performs a main program pursuant to
micro program sequence. Through its audio signal swing port (ADl)
(AD2), it is changed into 4 kinds of signals ; high-high signal
selecting low-pass band (28) of equalizing circuit (25), high-low
signal selecting medium pass band (27), low-high signal selecting
medium high pass band (29), low-low signal selecting high-pass
band (26).
In accordance with a signal from the audio signal swing port
(ADl) (AD2) of said micom (l), an audio signal of each frequency
band fixed at equalizing circuit (25) is selected while being
applied to relevant chip of audio signal switching IC circuit (24).
Explaining 4 kinds of signals at this stage by each step, when
music is broadcasted such as in show program, once a watcher pushs
the audio program key of the remote controller (3), a high-high
signal selected by program performed by micom(l) is applied through
the audio signal swing port (AD1) (AD2) into the audio signal
switching IC circuit (24), which chip-selects so as to transmit a
audio signal of the low-pass band (28) to left and right speakers
(not shown in figure). By outputting an audio signal stressing
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low-pass band (28), music full of presence in the show program can
be catched.
On the other band, at the same time of outputting a high-high
signal through the audio signal swing port (AD1) (AD2) of the micom
(1), DOS character corresponding to audio signal is outputted to
display the charaters "music" on the screen.
If the TV program is changed into a movie, when the watcher
pushes the audio program key once more, a high-high signal is
outputted through the audio signal swing port (AD1) (AD2) and applied
to said audio signal switching IC circuit (24).
Then the low-passe band (28) of audio signal added to music is
stopped by the audio signal switching IC circuit (24) and converted
into a medium pass band (27) of audio signal, thus providing a sound
full of ambience suitable to the televised movie and displaying DOS "
movie" on the screen.
Supposing that a drama program is televised, once one presses
the audio program key once more, totalling three times, the audio
signal swing port (AD1) and (AD2) apply low signal and high signal
respectively to audio switching IC circuit (24).
Upon receiving a low-high signal, said switching IC circuit (24)
selects medium to high-pass band (29) of audio signal and forwards it
to a speaker, at the same time supplying a sound appropriate to drama
and displaying DOS "drama" on the screen.
Assuming that a news program is televised, if one presses again
the audio program key of a remote controller (3) which was
previously arranged for drama, the low-high signal is converted into
a low-low signal at the audio signal swing port (AD1) (AD2) of micom
(1) and applied to the audio switching IC circuit (24).
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,
At the same time, high-pass band of audio signal applied to
the switching IC circuit (24) is selected and outputted to a speaker.
And DOS video signal showing what audio signal is presently
selected, namely "NEWS" is displayed through (R) (G) (Y) terminal
on the screen of a television set.
A television set according to the present invention extends
various service functions such as prearranged watching, telephone
directory, memory of birthday and anniversary to display the
recorded data on the screen on a designated date or previous day,
thereby reminding the important dates to watchers.
In addition, in conformity with the contents of bradcost
programs such as music, movie, drama, news, sport, a specific color
features stressing a suitable color tone therefor can be remotely
selected to show a realistic and vivid picture, with regards to a
sound signal according with said screen signal according to the
contents of broadcast program, a memory device which keeps the mean
value of tone color frequency level, successively selects the output,
to fit the mood of broadcast program, in order to attain the live
and animated sound effeet.
Therefore, this invention is to produce a high-tech television
with various service function and automatic selection of audio and
video so as to catch the original image.
