WO2001079978A1 - Method and apparatus for entry of multi-stroke characters - Google Patents

Method and apparatus for entry of multi-stroke characters Download PDF

Info

Publication number
WO2001079978A1
WO2001079978A1 PCT/US2000/012234 US0012234W WO0179978A1 WO 2001079978 A1 WO2001079978 A1 WO 2001079978A1 US 0012234 W US0012234 W US 0012234W WO 0179978 A1 WO0179978 A1 WO 0179978A1
Authority
WO
WIPO (PCT)
Prior art keywords
stroke
direction codes
character
codes
strokes
Prior art date
Application number
PCT/US2000/012234
Other languages
English (en)
French (fr)
Inventor
Jason B. Kenagy
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to CA002406116A priority Critical patent/CA2406116C/en
Priority to AU2000248211A priority patent/AU2000248211A1/en
Priority to JP2001576578A priority patent/JP4541629B2/ja
Priority to EP00930379A priority patent/EP1272918A1/en
Publication of WO2001079978A1 publication Critical patent/WO2001079978A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233—Character input methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233—Character input methods
    • G06F3/0235—Character input methods using chord techniques

Definitions

  • An apparatus may permit several different combinations of strokes to be mapped to a single character.
  • the letter 'A' may be entered with three or four strokes (as in FIG. 9A); the letter 'V may be entered as any of three different two-stroke combinations (as in FIG. 9B); and the letter ']' may be entered as a vertical and a horizontal stroke, as a vertical stroke and a curve stroke, or simply as a curve stroke.
  • a device incorporating an embodiment of the invention may be shipped to recognize all such combinations as valid, convenience of use may be increased by allowing the user to personalize the device by programming it to accept only one of the possible compositions for a particular letter.
  • the device may be configured to learn the particular combinations that the user prefers, thereby reducing the number of keystrokes that the user may be required to enter.
  • a direction code may represent a relative duration in time of a movement in a particular direction.
  • the direction codes as received from the input device may be related to a bounding box or matrix array, although it may be desirable to normalize them to such an array for display purposes.
  • a reference clock may be used to quantify the duration of such movements. Audible feedback may be provided at each clock tick during stroke drawing, and the speed of the clock may be adjustable by the user. (Note that this clock may also be used to support a EOC timeout function in place of or in addition to a dedicated EOC delimiter action.)
  • a string of codes entered in such an implementation for the stroke of FIG. 16 might appear as (+18A, +7B, -23A), for example, which string might be normalized to (+2A, +1B, -2A) for display and /or further processing.
  • An apparatus to execute the method of FIG. 17 includes a database that maps combinations of elemental strokes to characters, as described above.
  • the received set of direction codes is compared to a set of elemental strokes. Each stroke in this set may be represented as a set of direction codes, or the received set of direction codes may be mapped to an elemental stroke form before the comparison.
  • information relating to the relative positions of strokes within a character may be used for disambiguation.
  • the position of the loop in relation to the downstroke may be used to distinguish a capital 'P' from a lower-case 'b'.
  • Disambiguation may also include ignoring unimportant spatial relations between strokes.
  • a capital 'H' may be recognized, for example, regardless of the distance between the downstrokes and /or whether the cross- stroke actually meets both downstrokes.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Document Processing Apparatus (AREA)
  • Character Input (AREA)
  • Character Discrimination (AREA)
PCT/US2000/012234 2000-04-13 2000-05-05 Method and apparatus for entry of multi-stroke characters WO2001079978A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002406116A CA2406116C (en) 2000-04-13 2000-05-05 Method and apparatus for entry of multi-stroke characters
AU2000248211A AU2000248211A1 (en) 2000-04-13 2000-05-05 Method and apparatus for entry of multi-stroke characters
JP2001576578A JP4541629B2 (ja) 2000-04-13 2000-05-05 マルチストロークのキャラクタ入力のための方法および装置
EP00930379A EP1272918A1 (en) 2000-04-13 2000-05-05 Method and apparatus for entry of multi-stroke characters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54850200A 2000-04-13 2000-04-13
US09/548,502 2000-04-13

Publications (1)

Publication Number Publication Date
WO2001079978A1 true WO2001079978A1 (en) 2001-10-25

Family

ID=24189118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/012234 WO2001079978A1 (en) 2000-04-13 2000-05-05 Method and apparatus for entry of multi-stroke characters

Country Status (7)

Country Link
EP (1) EP1272918A1 (ja)
JP (1) JP4541629B2 (ja)
KR (1) KR100761606B1 (ja)
CN (1) CN1454343A (ja)
AU (1) AU2000248211A1 (ja)
CA (1) CA2406116C (ja)
WO (1) WO2001079978A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001074133A2 (en) * 2000-03-31 2001-10-11 Ventris, Inc. Method and apparatus for input of alphanumeric text data from twelve key keyboards
WO2007039746A1 (en) * 2005-10-06 2007-04-12 Jonathan Maber Keyboard and method of text entry

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7218779B2 (en) * 2003-01-21 2007-05-15 Microsoft Corporation Ink divider and associated application program interface
JP5451665B2 (ja) * 2011-02-21 2014-03-26 株式会社デンソーアイティーラボラトリ 文字入力装置、文字入力方法、及びプログラム
CN102147681B (zh) * 2011-05-03 2013-03-13 惠州Tcl移动通信有限公司 基于触摸屏的输入方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067431A (en) * 1976-03-12 1978-01-10 Whitaker Ranald O Combinational keyboard with movable keys and adapted for one-handed keying of numerical information
US5361083A (en) * 1991-04-16 1994-11-01 Robicon Systems Data input device and method
US5521986A (en) * 1994-11-30 1996-05-28 American Tel-A-Systems, Inc. Compact data input device
US5982303A (en) * 1997-02-03 1999-11-09 Smith; Jeffrey Method for entering alpha-numeric data

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3105967B2 (ja) * 1991-11-14 2000-11-06 キヤノン株式会社 文字認識方法及び装置
JPH1185356A (ja) * 1997-09-09 1999-03-30 Izumi Toda 文字入力装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067431A (en) * 1976-03-12 1978-01-10 Whitaker Ranald O Combinational keyboard with movable keys and adapted for one-handed keying of numerical information
US5361083A (en) * 1991-04-16 1994-11-01 Robicon Systems Data input device and method
US5521986A (en) * 1994-11-30 1996-05-28 American Tel-A-Systems, Inc. Compact data input device
US5982303A (en) * 1997-02-03 1999-11-09 Smith; Jeffrey Method for entering alpha-numeric data

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1272918A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001074133A2 (en) * 2000-03-31 2001-10-11 Ventris, Inc. Method and apparatus for input of alphanumeric text data from twelve key keyboards
WO2001074133A3 (en) * 2000-03-31 2002-09-06 Ventris Inc Method and apparatus for input of alphanumeric text data from twelve key keyboards
WO2007039746A1 (en) * 2005-10-06 2007-04-12 Jonathan Maber Keyboard and method of text entry
GB2445516A (en) * 2005-10-06 2008-07-09 Jonathan Maber Keyboard and method of text entry
GB2445516B (en) * 2005-10-06 2011-04-27 Jonathan Maber Keyboard and method of text entry
US8928502B2 (en) 2005-10-06 2015-01-06 Jonathan Maber Keyboard and method text entry

Also Published As

Publication number Publication date
CA2406116C (en) 2007-06-19
CA2406116A1 (en) 2001-10-25
KR20020087978A (ko) 2002-11-23
KR100761606B1 (ko) 2007-09-27
JP2004501422A (ja) 2004-01-15
AU2000248211A1 (en) 2001-10-30
JP4541629B2 (ja) 2010-09-08
EP1272918A1 (en) 2003-01-08
CN1454343A (zh) 2003-11-05

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