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Patent 2653823 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 2653823
(54) English Title: METHOD OF LEARNING A CONTEXT OF A SEGMENT OF TEXT, AND ASSOCIATED HANDHELD ELECTRONIC DEVICE
(54) French Title: PROCEDE D'APPRENTISSAGE D'UN CONTEXTE D'UN SEGMENT DE TEXTE ET DISPOSITIF ELECTRONIQUE DE POCHE ASSOCIE
Status: Granted
Bibliographic Data
(51) International Patent Classification (IPC):
  • G06F 40/10 (2020.01)
  • G06N 20/00 (2019.01)
  • G06F 40/129 (2020.01)
  • G06F 40/279 (2020.01)
  • G06F 3/01 (2006.01)
  • G06F 15/02 (2006.01)
(72) Inventors :
  • FUX, VADIM (Canada)
  • KOLOMIETS, SERGEY (Canada)
(73) Owners :
  • BLACKBERRY LIMITED (Canada)
(71) Applicants :
  • RESEARCH IN MOTION LIMITED (Canada)
(74) Agent: BORDEN LADNER GERVAIS LLP
(74) Associate agent:
(45) Issued: 2013-10-15
(86) PCT Filing Date: 2006-06-30
(87) Open to Public Inspection: 2008-01-03
Examination requested: 2008-11-26
Availability of licence: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): Yes
(86) PCT Filing Number: PCT/CA2006/001087
(87) International Publication Number: WO2008/000056
(85) National Entry: 2008-11-26

(30) Application Priority Data: None

Abstracts

English Abstract

An improved method of learning a context of a segment of text input enables facilitated text input on an improved handheld electronic device. In response to a series of inputs, segments and other objects are analyzed to generate a proposed character interpretation of the series of inputs. Responsive to detecting a replacement of a segment of the character interpretation with another segment, a combination object comprising the another segment and a preceding object is stored. In response to another series of inputs, the combination object can be employed by a processing algorithm to ascertain a preference for the another segment in the context of the preceding object of the combination object.


French Abstract

L'invention concerne un procédé amélioré d'apprentissage d'un contexte d'un segment d'entrée de texte, lequel procédé facilite l'entrée de texte sur un dispositif électronique de poche amélioré. En réponse à une série d'entrées, des segments et d'autres objets sont analysés pour permettre la génération d'une interprétation de caractères proposée de la série d'entrées. Lorsqu'un remplacement d'un segment de l'interprétation de caractères par un autre segment est détecté, un objet combiné comprenant l'autre segment et un objet précédent est mémorisé. En réponse à une autre série d'entrées, l'objet combiné peut être utilisé par un algorithme de traitement pour vérifier une préférence pour l'autre segment dans le contexte de l'objet précédent de l'objet combiné.

Claims

Note: Claims are shown in the official language in which they were submitted.


CLAIMS:
1. A method of enabling input on a handheld electronic device, comprising:
receiving, by the device, inputs corresponding to a first set of characters
selected
from a first alphabet;
outputting, by the device, a second set of characters associated with the
first set of
characters, the second set of characters being selected from a second
alphabet;
receiving, by the device, an editing input to replace one or more of the
characters
of the second set of characters with one or more replacement characters from
the second
alphabet;
storing, by the device, a combination object comprising:
a representation of the one or more replacement characters, and
a representation of at least one of the characters from the second set of
characters, different from the one or more replacement characters;
determining a frequency with which the characters represented by the
combination
object are used together; and
providing the characters represented by the combination object together, in
response to one or more subsequent inputs, based on the frequency.
2. The method of claim 1, wherein the characters different from the one or
more
replacement characters precede the one or more replacement characters in the
second set
of characters.
3. The method of claim 1, further comprising storing as at least a portion
of the
combination object at least a representation of a segment.
4. The method of claim 1, further comprising:
receiving subsequent inputs identifying the characters represented by the
combination object; and
categorizing the characters represented by the combination object as a learned

segment of characters.
14

5. The method of claim 1, wherein the combination object is stored after
receiving the
editing input.
6. A handheld electronic device comprising:
a processor; and
a memory comprising instructions executable by the processor to perform
operations comprising:
receiving inputs corresponding to a first set of characters selected from a
first
alphabet;
outputting a second set of characters associated with the first set of
characters, the
second set of characters being selected from a second alphabet;
receiving an editing input to replace one or more of the characters of the
second set
of characters with one or more replacement characters from the second
alphabet; and
storing a combination object comprising:
a representation of the one or more replacement characters,
a representation of at least one of the characters from the second set of
characters, different from the one or more replacement characters;
determining a frequency with which the characters represented by the
combination
object are used together; and
providing the characters represented by the combination object together, in
response to one or more subsequent inputs, based on the frequency.
7. The handheld electronic device of claim 6, wherein the characters
different from
the one or more replacement characters precede the one or more replacement
characters in
the second set of characters.
8. The handheld electronic device of claim 6, wherein the operations
further comprise
storing as at least a portion of the combination object at least a
representation of a
segment.
9. The handheld electronic device of claim 6, wherein the operations
further
comprise:

receiving subsequent inputs identifying the characters represented by the
combination object; and
categorizing the characters represented by the combination object as a learned

segment of characters.
10. The handheld electronic device of claim 6, wherein the combination
object is
stored after receiving the editing input.
11. The method according to claim 1, wherein:
the inputs identify several characters from the first alphabet that correspond
to a
single character from the second alphabet.
12. The method according to claim 11, wherein the first alphabet is the
Latin alphabet,
and the second alphabet includes Mandarin Chinese characters.
13. The method according to claim 12, wherein the several characters from
the Latin
alphabet comprise a pin corresponding to a single Mandarin Chinese character.
16

Description

Note: Descriptions are shown in the official language in which they were submitted.


CA 02653823 2008-11-26
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METHOD OF LEARNING A CONTEXT OF A SEGMENT OF TEXT, AND
ASSOCIATED HANDHELD ELECTRONIC DEVICE
BACKGROUND
Field
The disclosed and claimed concept relates generally to handheld electronic
devices
and, more particularly, to a method of learning a context for a character
segment during
text input.
Description of the Related Art
Numerous types of handheld electronic devices are known. Examples of such
handheld electronic devices include, for instance, personal data assistants
(PDAs),
handheld computers, two-way pagers, cellular telephones, and the like. Many
handheld
electronic devices also feature wireless communication capability, although
many such
handheld electronic devices are stand-alone devices that are functional
without
communication with other devices.
In certain circumstances, a handheld electronic device having a keypad of
Latin
letters can be employed to enter text in languages that are not based upon
Latin letters.
For instance, pinyin Chinese is a type of phonetic Chinese "alphabet" which
enables
transcription between Latin text and Standard Mandarin text. Pinyin Chinese
can thus
enable the input of Standard Mandarin characters by entering Latin letters. A
"pin" is a
phonetic sound, oftentimes formed from a plurality of Latin letters, and each
pin is
associated with one or more Standard Mandarin characters. More than four
hundred pins
exist, and each pin typically corresponds with a plurality of different
Standard Mandarin
characters. While methods and devices for text input such as pinyin Chinese
text input
have been generally effective for their intended purposes, such methods and
devices have
not been without limitation.
Generally each Standard Mandarin character is itself a Chinese word. Moreover,

a given Standard Mandarin character in combination with one or more other
Standard
Mandarin characters can constitute a different word. An exemplary pin could be
phonetically characterized as "da", which would be input on a Latin keyboard
by
actuating the <D> key followed by an actuation of the <A> key. However, the
pin "da"
corresponds with a plurality of different Chinese characters. Moreover, the
pin "da" can
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be a single syllable represented by a character within a Chinese word having a
plurality
of syllables, with each syllable being represented by a Standard Mandarin
character. As
such, substantial difficulty exits in determining which specific Standard
Mandarin
character should be output in response to an input of a pin when the pin
corresponds with
a plurality of Standard Mandarin characters.
Numerous methodologies have been developed to assist in generating a character

interpretation for a series of pins that have been input on a device. For
instance, an
exemplary algorithm would be the "simple maximum matching" algorithm, which is
one
algorithm among many, both simple and complex, of the well known Maximum
Matching Algorithm. A given device may have stored thereon a number of Chinese
words comprised of one or more Chinese characters, and the algorithm(s)
executed on
the device may employ such linguistic data to develop the best possible
character
interpretation of a series of input pins.
In response to the inputting of a sequence of pins, the aforementioned simple
maximum matching algorithm might generate a character interpretation
comprising the
largest Chinese words, i.e., the words having the greatest quantity of
Standard Mandarin
characters. For example, the algorithm might, as a first step, obtain the
largest Chinese
word having characters that correspond with the pins at the beginning of the
pin
sequence. As a second step, the algorithm might obtain the largest Chinese
word having
characters that correspond with the pins in the sequence that immediately
follow the
previous word. This is repeated until Chinese words have been obtained for all
of the
pins in the input sequence. The result is then output.
Numerous other algorithms are employed individually or in combination with the

objective of providing as a proposed output a character interpretation that
matches what
was originally intended by the user. It would be desired to provide an
improved method
and handheld electronic device that facilitate the input of text.
BRIEF DESCRIPTION OF THE DRAWINGS
A full understanding of the disclosed and claimed concept can be obtained from
the following Description when read in conjunction with the accompanying
drawings in
which:
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Fig. 1 is a front elevational view of an exemplary handheld electronic device
in
accordance with the disclosed and claimed concept upon which is performed an
improved method in accordance with the disclosed and claimed concept;
Fig. 2 is a schematic depiction of the handheld electronic device of Fig. 1;
Fig. 3 is a schematic depiction of a portion of the handheld electronic device
of
Fig. 1;
Fig. 4 is an exemplary flowchart depicting a portion of the improved method;
Fig. 5 is an exemplary output during an exemplary text input operation;
Fig. 6 is another exemplary output during the exemplary text input operation;
Fig. 7 is an exemplary flowchart depicting another portion of the improved
method;
Fig. 8 is an exemplary flowchart depicting another portion of the improved
method;
Fig. 9 is an exemplary output during another exemplary text input operation;
and
Fig. 10 is another exemplary output during the another exemplary text input
operation.
Similar numerals refer to similar parts throughout the specification.
DESCRIPTION
An improved handheld electronic device 4 in accordance with the disclosed and
claimed concept is indicated generally in Fig. 1 and is depicted schematically
in Fig. 2.
The improved handheld electronic device 4 comprised an input apparatus 8, an
output
apparatus 12, and a processor apparatus 16. The input apparatus 8 provides
input to the
processor apparatus 16. The processor apparatus 16 provides output signals to
the output
apparatus 12.
The handheld electronic device and the associated method described herein
advantageously enable the input of text. The exemplary device and method are
described
herein in terms of pinyin Chinese, but it is understood that the teachings
herein can be
employed in conjunction with other types of text input, and can be employed in
conjunction with other languages such as Japanese and Korean, without
limitation.
The input apparatus 8 comprises a keypad 20 and a thumbwheel 24. The keypad
20 in the exemplary embodiment depicted herein is a Latin keypad comprising a
plurality
of keys 26 that are each actuatable to input to the processor apparatus 16 the
Latin
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character indicated thereon. The thwnbwheel 24 is rotatable to provide
navigational and
other input to the processor apparatus 16, and additionally is translatable in
the direction
of the arrow 28 of Fig. 1 to provide other input, such as selection inputs.
The keys 26
and the thumbwheel 24 serve as input members which are actuatable to provide
input to
the processor apparatus 16. The exemplary output apparatus 12 comprises a
display 32.
Examples of other input members not expressly depicted herein would include,
for instance, a mouse or trackball for providing navigational inputs, such as
could be
reflected by movement of a cursor on the display 32, and other inputs such as
selection
inputs. Still other exemplary input members would include a touch-sensitive
display, a
stylus pen for making menu input selections on a touch-sensitive display
displaying
menu options and/or soft buttons of a graphical user interface (GUI), hard
buttons
disposed on a case of the handheld electronic device 4, an so on. Examples of
other
output devices would include a touch-sensitive display, an audio speaker, and
so on.
An exemplary mouse or trackball would likely advantageously be of a type that
provides various types of navigational inputs. For instance, a mouse or
trackball could
provide navigational inputs in both vertical and horizontal directions with
respect to the
display 32, which can facilitate input by the user.
The processor apparatus 16 comprises a processor 36 and a memory 40. The
processor 36 may be, for example and without limitation, a microprocessor (IR)
at
interfaces with the memory 40. The memory 40 can be any one or more of a
variety of
types of internal and/or external storage media such as, without limitation,
RAM, ROM,
EPROM(s), EEPROM(s), and the like that provide a storage register for data
storage
such as in the fashion of an internal storage area of a computer, and can be
volatile
memory or nonvolatile memory.
The memory 40 is depicted schematically in Fig. 3. The memory 40 has stored
therein a plurality of objects 44 and a number of routines 48. The routines 48
are
executable on the processor 36.
The objects 44 comprise a plurality of raw inputs 52, a plurality of
characters 56,
a plurality of combination objects 60, a plurality of generic segments 64, a
number of
candidates 68, and a number of learned segments 72. As employed herein, the
expression "a number of' and variations thereof shall refer broadly to a
nonzero quantity,
including a quantity of one. The exemplary memory 40 is depicted as having
stored
therein at least a first candidate 68 and at least a first learned segment 72,
although it is
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understood that the memory 40 need not at all times comprise candidates 68
and/or
learned segments 72. For instance, the handheld electronic device 4, when new,
may not
yet have stored in the memory 40 any candidates 68 or any learned segments 72,
it being
understood that one or more candidates 68 and/or learned segments 72 can
become stored
in the memory 40 with use of the handheld electronic device 4.
The raw inputs 52 and characters 56 may be stored in a table wherein each raw
input 52 is associated with one or more of the characters 56. In the exemplary

embodiment described herein, the exemplary language is Chinese, and thus each
raw
input 52 would be a pin in the scheme of pinyin Chinese. Associated with each
such raw
input 52, i.e., pin, would be one or more characters 56, i.e., Standard
Mandarin
characters.
The generic segments 64 each comprise a plurality of the characters 56. In the

present exemplary embodiment, each possible two-character permutation of the
Standard
Mandarin characters is stored as a generic segment 64. Additionally, other
Chinese
words comprising three or more Standard Mandarin characters are each stored as
a
generic segment 64, based upon prevalent usage within the language. In the
exemplary
embodiment depicted herein, the generic segments 64 are each at most six
Standard
Mandarin characters in length, although only an extremely small number of
generic
segments 64 comprise six Standard Mandarin characters.
As will be described in greater detail below, the candidates 68 are each a
series of
Standard Mandarin characters that were the subject of an initial portion of a
learning
cycle, i.e., an object for which the learning cycle has not yet been
completed. The
learned segments 72 are each a plurality of Standard Mandarin characters which
resulted
from candidates 68 which went through an entire learning cycle. As a general
matter, the
generic segments 64 are inviolate, i.e., are not capable of being changed by
the user, but
the candidates 68 and the learned segments 72 are changeable based upon, for
instance,
usage of the handheld electronic device 4.
The routines 48 advantageously comprise a segment learning routine which
enables the learning and storage of the learned segments 72, which facilitates
text input.
Specifically, the generic segments 64 provide a statistically-based solution
to a text input,
but the learned segments 72 advantageously provide a more customized user
experience
by providing additional segments, i.e., the learned segments 72, in response
to certain
inputs. This provides to the user a character interpretation that is more
likely to be the
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character interpretation intended by the user than if the character
interpretation were
based solely on the generic segments 64.
An exemplary flowchart in Fig. 4 depicts certain aspects of an improved
learning
method provided by the learning routine. The routine detects, as at 104, an
actuation of
an input member, such as one of the keys 26 or the thumbwheel 24. It is then
determined, as at 108, whether the input member actuation was an edit input.
If it is
determined at 108 that the input member actuation was not an edit input, the
process
continues to 112 where the input member actuation and the preceding input
member
actuations in the current series of input member actuations are resolved into
inputs. In
the exemplary embodiment depicted herein, the inputs would each be pins since
the
exemplary language is pinyin Chinese. Since many pins are formed with a
plurality of
input member actuations, such as in the way the pin "da" is formed by an
actuation of the
<D> key 26 followed by an actuation of the <A> key 26, it is possible that a
given input
member actuation may not, by itself, constitute a new pin in the input
sequence.
Regardless, the various input member actuations are, to the extent possible,
converted
into inputs. In so doing, the raw inputs 52 may be employed.
Portions of the sequence of inputs obtained at 112 are then compared, as at
116,
with various stored objects 44 in the memory 40 to obtain a character
interpretation of the
input sequence. That is, one or more of the raw inputs 52, characters 56,
combination
objects 60, generic segments 64, candidates 68, and learned segments 72 are
consulted to
determine the series of Standard Mandarin characters that are most likely to
be the
interpretation desired by the user. The input routine may employ algorithms
from the
Maximum Matching Algorithm, and/or other algorithms, for instance, to
facilitate the
identification of appropriate objects 44 from which to generate the character
interpretation. The character interpretation is then output, as at 120.
Such an exemplary output of a character interpretation is depicted generally
in
Fig. 5 at a text component 276 therein. The depicted text component 276
comprises a
string of characters 256 that each correspond with an input, i.e., pin, of the
input
sequence. After the output at 120, processing thereafter continues to 104
where
additional input member actuations can be detected.
If it was determined at 108 that the current input member actuation was an
edit
input, processing would continue to 124 where a character learning string
would be
generated. An editing input is depicted generally in Figs. 5 and 6. Among the
characters
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256 in the text component 276 of Fig. 5 is an edited character 284, which is a
character
256 that is the subject of the editing input. In Fig. 5, the edited character
284 is
highlighted, meaning that the system focus is on the edited character 284.
Since the
edited character 284 has been highlighted and is thus the subject of editing,
a variant
component 280 is also output at a separate location on the display 32. The
variant
component 280 comprises as a default character 288 the edited character 284.
The
variant component 280 additionally includes a number of variant character 292.
The
default character 288 and the variant characters 292 in the depicted exemplary

embodiment each are characters 256 that correspond with the pin with which the
edited
character 284 corresponds. That is, the default character 288 and the variant
characters
292 each represent a character 256 that corresponds with the pin that was
input at the
indicated location within the input sequence. The edited character 284 was the
character
which resulted from the input algorithm(s) provided by the routines 48 on the
handheld
electronic device 4. The edited character 284 may become highlighted by moving
a
cursor over the particular character 256 and either translating the thumbwheel
24 in the
direction of the arrow 28, by dwelling over the character 256, or through the
use of other
inputs recognizable by the appropriate routine 48.
In Fig. 6, the user has selected one of the variant characters 292 as a
replacement
character 296 which will be used to take the place of the edited character
284. The
replacement character 296 may have been selected through the use of a
navigational
input with the thumbwheel 24 or other such input. Upon highlighting the
replacement
character 296, the edited character 284 in the text component 276 is replaced
with the
replacement character 296. In the depicted exemplary embodiment, replacement
of the
edited character 284 with the replacement character 296 is finalized upon the
translating
the thumbwheel 24 in the direction of the arrow 28, or through the use of
another
appropriate input.
Figs. 5 and 6 depict an edit input, i.e., the selection of an edited character
284 and
the replacement thereof with a replacement character 296. Upon the detection
of such an
edit input, such as at 108, a character learning string is generated, as at
124. In the
exemplary embodiment described herein, the character learning string comprises
a string
of the characters 256 in the text component 276. Specifically, the character
learning
string comprises the replacement character 296 plus up to four additional
characters
adjacent each side of the replacement character 296, i.e., up to four
characters 256
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preceding and up to four characters 256 following the replacement character
296. The
learning character string thus can have, for example, up to nine characters.
In the
depicted exemplary embodiment, the characters of a character learning string
are limited
to characters within a single sentence. As can be understood from Fig. 6, the
character
learning string generated in response to the edit input depicted in Figs. 5
and 6 would
comprise the replacement character 296, the two Standard Mandarin characters
to the left
of the replacement character 296, and the first four Standard Mandarin to the
right of the
replacement character 296.
After the character learning string has been generated at 124, it is then
determined
at 128 whether or not any portion of the character learning string matches a
portion of a
candidate 68. In this regard, a "portion" comprises the replacement character
296 and at
least one character adjacent thereto in the character learning string. It is
determined at
128 whether these characters match a set of adjacent characters in one of the
candidates
68.
If it is determined at 128 that no such match exists between a portion of the
character learning string and a portion of a candidate 68, the character
learning string is
itself stored, as at 132, as a candidate 68. Processing thereafter continues
at 104 where
additional input member actuations can be detected.
If it is determined at 128 that the replacement character 296 and at least one
character adjacent thereto in the character learning string match an adjacent
plurality of
characters in one of the candidates 68, the set of matched characters are
learned, as at
136. If the quantity of matched characters are five characters in length or
less, the set of
characters are stored as a learned segment 72. However, if the set of matched
characters
is more than five characters in length, the set of matched characters is
stored, by way of a
combination object 60, as a learned segment 72 plus another object, either a
character 56,
a generic segment 64, or another learned segment 72. That is, some of the
Standard
Mandarin characters 56 in the set of matched characters are compared with
various
objects 44 to identify a matching object 44. Since the generic segments 64
comprise
each two character permutation of the Standard Mandarin characters, at least
the two
initial characters of the set of matched characters can be stored in the form
of a reference
or pointer to the preexisting generic segment 64. The other characters 56 in
the set of
matched characters, i.e., the characters 56 other than the characters 56 for
which a
preexisting object 44 was identified, are stored as the learned segment 72.
The resultant
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combination object 60 would, in the exemplary embodiment, include pointers to
both the
identified preexisting object 44 and the newly stored learned segment 72.
After the set of matched characters has been "learned", such as described
above,
the candidate 68 from which the matching characters were identified is
deleted, as at 140.
Processing thereafter returns to 104 where additional input member actuations
can be
detected.
The identification at 128 of a set of characters in the character learning
string that
match a set of characters in a candidate 68 can occur in any of a variety of
fashions. In
the exemplary embodiment depicted herein, the replacement character 296 in the
character learning string plus at least one adjacent character in the
character learning
string must match a corresponding set of adjacent characters in a candidate
68. This can
be accomplished, for example, by identifying among the candidates 68 all of
the
candidates 68 which comprise, as one of the characters thereof, the
replacement character
296. The characters in the learning character string that precede the
replacement
character 296 and that follow the replacement character 296 thereof are
compared with
characters in a candidate 68 that are correspondingly positioned with respect
to the
character thereof that matches the replacement character 296. In the depicted
exemplary
embodiment, the comparison occurs one character at a time alternating between
characters that precede and that follow the replacement character 296 in a
direction
progressing generally outwardly from the replacement character 296.
For example, the character learning string generated from the edit input
depicted
in Figs. 5 and 6 could be characterized as the string C3C1CRC2C4C5C6 . The
character
designed CR could be said to represent the replacement character 296, the
characters
C3C1 could be the two characters in Fig. 6 that precede, i.e., appear to the
left of, the
replacement character 296, and the characters C2C4C5C6 would represent the
four
characters that follow, i.e., appear to the right of, the replacement
character 296. In the
depicted exemplary embodiment, if CR matches a character in one of the
candidates 68,
the character C1 would be compared with a correspondingly positioned character
in the
candidate 68 that is being analyzed. If the character C1 matched the indicated
character
of the candidate 68, it would then be determined whether or not the character
C2 of the
character learning string matched the correspondingly positioned character in
the
candidate 68 being analyzed. Such character analysis would alternate between
the
characters preceding and following the replacement character 296 in the
character
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learning string until a non-matching character is identified at one side of
the replacement
character 296, or if no correspondingly positioned character exists in the
candidate 68.
Further comparisons are performed only at the opposite side of the replacement
character
296 until either a non-matching character is identified or no further
characters exist at
such opposite side of the candidate 68.
The result is a set of characters from the character learning string for which
a
matching series of characters was found within one of the candidates 68. The
set of
matched characters is stored, as indicated above, and the candidate 68 from
which the
matching characters was identified is deleted, as at 140.
Upon such storage of the matched characters as a learned segment 72 and/or a
combination object 60, the learned segment 72 and/or the combination object 60
can be
employed in conjunction with further text input to generate proposed character

interpretations of sequences of inputs. Since the user has already indicated
twice a
preference for the set of matched characters, i.e., the characters were stored
initially as a
candidate 68 and were thereafter stored within a character learning string
which was
compared with the candidate 68, the user has indicated a desire to use the set
of matched
characters.
It is noted that the generic segments 64 and the learned segments 72 each
comprise, in addition to the characters 56 thereof, a relative frequency
value. In the
exemplary depicted embodiment, the frequency value has a value between zero
and
seven, with higher values being indicative of relatively more frequent use.
The learned
segments 72 are each given a relatively high frequency value. As such, when at
116 a
character interpretation of an input sequence is obtained, a preference will
exist, as a
general matter, for the learned segments 72 when both a learned segment 72 and
a
generic segment 64 would constitute a valid character interpretation of a
given set of
adjacent inputs. As such, as the user continues to use the handheld electronic
device 4,
progressively greater quantities of learned segments 72 are stored, and
character
interpretations of input sequences progressively have a greater likelihood of
being the
character interpretation intended by the user.
Learned segments 72 and combination objects 60 can additionally be derived
from text received in other fashions on the handheld electronic device. For
instance, the
exemplary handheld electronic device 4 can receive messages, such as in the
form email,
or as messages such through the use of short message service (SMS). As can be

CA 02653823 2008-11-26
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understood from Fig. 7, such received text can be generally said to be
subjected to the
input method generally described above and depicted in Fig. 4. Specifically, a
string of
characters is received, as at 304, on the handheld electronic device 4. The
characters of
the string of characters might be referred to as reference characters due to
their later use
in a comparison operation. At least some of the characters are converted into
raw inputs
52, as at 312. Typically, a single sentence is converted at one time, although
other
schemes can be employed for determining which portions of the text to convert
into raw
inputs 52.
The string of raw inputs 52 is then compared, as at 316, with certain of the
objects
44 in the memory 40 in order to obtain a character interpretation of the raw
inputs 52. It
is then determined, as at 318 whether any portion of the character
interpretation is
different than the string of reference characters received at 304 and which
were converted
into raw inputs 52 at 312. If it is determined at 318 that the character
interpretation is the
same as the received string of reference characters, the character
interpretation is ignored
as at 322. Processing thereafter continues, as at 312, where additional
characters, if any,
are converted into raw inputs 52 for further processing as indicated above.
If it is determined at 318 that some of the characters 56 of the character
interpretation differ from the characters in the string of characters obtained
at 304, a
character learning string is generated, as at 324. The character learning
string generated
at 324 comprises the characters in the string of characters obtained at 304
which were
identified as differing between the character interpretation and the received
string of
reference characters. If desired, the character learning string can
additionally include one
or more characters in the string of characters that precede and/or follow the
differing
characters.
Once the character learning string has been generated, as at 324, it is
determined
at 328 whether at least a portion of the character learning string matches at
least a portion
of a candidate 68. This occurs in a fashion similar to the processing at 128.
If no such
match is found at 328, the character learning string is stored, as at 322, as
a candidate 68.
If, however, a set of matching characters is identified at 328, the matching
characters are
stored, as at 336, as at least one of a learned segment 72 and a combination
object 60, in
a fashion similar to the processing at 136. The candidate 68 from which the
match was
identified is then deleted, as at 340. After processing after 332 or at 340,
processing
11

CA 02653823 2011-12-16
thereafter continues at 312 where additional characters can be converted into
raw inputs
52.
It thus can be seen that received text can be employed to learn new learn
segments 72 and/or combination objects 60 in a fashion similar to the way in
which
learned segments 72 and combination objects 60 were learned during text input,
as
depicted generally in Fig. 4. Moreover, the received text and the input text
can together
be used to store new learned segments 72 and new combination objects 60. For
instance,
a candidate 68 stored at 332, i.e., during analysis of the received text, can
be the
candidate identified at 128 during the text input process. By the same token,
a candidate
68 stored at 132, i.e., during text input, can be the candidate identified at
328 during
analysis of received text. Of course, candidates 68 stored at 132 during text
input can be
matched at 128 during other text input, and candidates 68 stored at 332 during
analysis of
received text can be matched at 328 during analysis of other received text.
This provides
further customization of the handheld electronic device 4 to the needs of the
user.
One of the routines 48 additionally provides a context learning feature when a
plurality of adjacent characters 56 in a character interpretation are replaced
with an
existing segment, either a generic segment 64 or a learned segment 72, or are
replaced
with individual characters 56. Such a context learning feature is depicted as
a flowchart
in Fig.8 and as a set of exemplary outputs in Figs 9 and 10. As can be
understood from
Fig. 8, a replacement of at least a portion of a character interpretation with
a segment is
detected, as a 406. Thereafter, the segment and either a preceding segment or
a
preceding character are stored as a combination object 60, as at 410.
Such an operation is depicted, for example, in Figs 9 and 10. In Fig. 9, a
text
component 576 is output and includes an edited segment 584 comprising two
characters
556. In response to the edited segment 584 being highlighted, a variant
component 580
is displayed and comprises a default segment 588 and a number of variant
segments 592.
In Fig. 10 the user has selected a replacement segment 596, which has replaced
the edited
segment 584. The replacement segment 596, plus a preceding object 44 in the
text
component 576 are stored as a combination object 60. That is, the new
combination
object 60 comprises the replacement segment 596 plus the object 44 that
precedes the
replacement segment 596. If what the precedes the replacement segment 596 is
another
segment, the preceding segment is stored as a part of the new combination
object 60. If
the object 44 that precedes the replacement segment 596 is a character 556,
i.e., a
12

CA 02653823 2008-11-26
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PCT/CA2006/001087
character 556 that is not part of a segment, the character 556 is stored as
the other portion
of the combination object 60.
The new combination object 60 thus can be employed by the input routine to
determine whether a preference exists for one segment in the context of
another object
44. For instance, the replacement segment 596 portion of the new combination
object 60
might be selected over another segment that is a valid character
interpretation of a part of
a sequence of inputs when it follows the same character 556 or the other
segment which
preceded the replacement segment 596 during the aforementioned context
learning
operation. The combination objects 60 thus provide a further level of
customization for
the user, and facilitate providing a character interpretation that matches the
user's
original intention.
As noted above, the context learning feature can be initiated when a plurality
of
adjacent characters 56 in a character interpretation are replaced with other
individual
characters 56. If a particular character 56 in a string of characters is
replaced with
another particular character 56 as a result of an editing input, a character
learning string
is generated, as at 124 in Fig. 4 and as is described elsewhere herein. Such a
character
learning string can be stored as a candidate, as at 132, or can be stored, in
whole or in
part, as at least one of a learned segment 72 and a combination object 60, as
at 140. If,
however, the user thereafter seeks to edit a character 56 adjacent the another
particular
character 56, the system will interpret the individual editing of two adjacent
characters 56
as indicating a need to store a new segment. Processing therefore would
immediately be
transferred to 410 in Fig. 8, wherein the edited adjacent characters would be
stored as a
learned segment 72 and as a portion of a combination object 60. In a similar
fashion, if a
third adjacent character 56 was similarly individually edited, the three
edited adjacent
characters would be stored as a learned segment 72 and as a portion of a
combination
object 60.
While specific embodiments of the disclosed and claimed concept have been
described in detail, it will be appreciated by those skilled in the art that
various
modifications and alternatives to those details could be developed in light of
the overall
teachings of the disclosure. Accordingly, the particular arrangements
disclosed are
meant to be illustrative only and not limiting as to the scope of the
disclosed and claimed
concept which is to be given the full breadth of the claims appended and any
and all
equivalents thereof.
13

Representative Drawing
A single figure which represents the drawing illustrating the invention.
Administrative Status

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Administrative Status

Title Date
Forecasted Issue Date 2013-10-15
(86) PCT Filing Date 2006-06-30
(87) PCT Publication Date 2008-01-03
(85) National Entry 2008-11-26
Examination Requested 2008-11-26
(45) Issued 2013-10-15

Abandonment History

There is no abandonment history.

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Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Request for Examination $200.00 2008-11-26
Registration of a document - section 124 $100.00 2008-11-26
Registration of a document - section 124 $100.00 2008-11-26
Application Fee $400.00 2008-11-26
Maintenance Fee - Application - New Act 2 2008-06-30 $100.00 2008-11-26
Maintenance Fee - Application - New Act 3 2009-06-30 $100.00 2009-06-29
Maintenance Fee - Application - New Act 4 2010-06-30 $100.00 2010-05-17
Maintenance Fee - Application - New Act 5 2011-06-30 $200.00 2011-05-18
Maintenance Fee - Application - New Act 6 2012-07-03 $200.00 2012-06-08
Maintenance Fee - Application - New Act 7 2013-07-02 $200.00 2013-06-07
Final Fee $300.00 2013-08-07
Registration of a document - section 124 $100.00 2013-10-24
Maintenance Fee - Patent - New Act 8 2014-06-30 $200.00 2014-06-23
Maintenance Fee - Patent - New Act 9 2015-06-30 $200.00 2015-06-29
Maintenance Fee - Patent - New Act 10 2016-06-30 $250.00 2016-06-27
Maintenance Fee - Patent - New Act 11 2017-06-30 $250.00 2017-06-26
Maintenance Fee - Patent - New Act 12 2018-07-03 $250.00 2018-06-25
Maintenance Fee - Patent - New Act 13 2019-07-02 $250.00 2019-06-21
Maintenance Fee - Patent - New Act 14 2020-06-30 $250.00 2020-06-26
Maintenance Fee - Patent - New Act 15 2021-06-30 $459.00 2021-06-25
Maintenance Fee - Patent - New Act 16 2022-06-30 $458.08 2022-06-24
Maintenance Fee - Patent - New Act 17 2023-06-30 $473.65 2023-06-23
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
BLACKBERRY LIMITED
Past Owners on Record
2012244 ONTARIO INC.
FUX, VADIM
KOLOMIETS, SERGEY
RESEARCH IN MOTION LIMITED
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

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Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Claims 2008-11-26 3 137
Abstract 2008-11-26 1 67
Cover Page 2009-04-02 1 44
Drawings 2008-11-26 6 127
Description 2008-11-26 13 763
Representative Drawing 2008-11-26 1 7
Description 2011-12-16 13 766
Claims 2011-12-16 3 101
Drawings 2011-12-16 6 126
Claims 2012-09-27 3 102
Representative Drawing 2013-09-17 1 9
Cover Page 2013-09-17 1 44
PCT 2008-11-26 3 127
Assignment 2008-11-26 14 670
Prosecution-Amendment 2011-08-26 3 122
Prosecution-Amendment 2011-12-16 8 336
Prosecution-Amendment 2012-04-10 3 131
Prosecution-Amendment 2012-09-27 5 227
Correspondence 2013-08-07 1 32
Assignment 2013-10-24 7 182