Patent US5644653A successfully refreshed from Google Patents.
US5644653A
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Information processing apparatus and control method thereof having user character recognition
Assignee: Canon Inc
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Filing: 1994-04-26
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Granted: 1997-07-01
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Expires: 2014-04-26
Abstract
Abstract A hand-held computer with an input pen capable of handwriting recognition. Characters are inputted by a user's manual operation with the input pen on a transparent coordinate input plate in front of a display screen. The computer discriminates pen-input characteristic of the user, and selects a character-recognition dictionary based on the discrimination result.
Inventors
- 👤 Shinichi Sunakawa
- 👤 Kazutoshi Shimada
- 👤 Eisaku Tatsumi
- 👤 Noriyuki Suzuki
- 👤 Katsuhiko Nagasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:32
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1633; G06F1/1684; G06F1/1626; G06F1/1632; G06F18/00; G06F18/20; G06F18/28; G06V; G06V30/00; G06V30/10; G06V30/14; G06V30/142; G06V30/1423; G06V30/19; G06V30/191; G06V30/1914; G06V30/32; G06V30/36; G06V30/373; G06F2200/00; G06F2200/16; G06F2200/161; G06F2200/1614; G06F2200/163; G06F2200/1632
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
An electronic apparatus which performs handwriting recognition comprising: detection means for detecting a position at which a palm of a user is rested; discrimination means for discriminating whether a user who performs handwriting input is right-handed or left-handed on the basis of the position of the palm detected by said detection means; selection means for selecting one of a plurality of dictionaries for character recognition, based on a discrimination result from said discrimination means; and character recognition control means for controlling predetermined character recognition which refers to the dictionary selected by said selection means.
Claim 2
Dependent Claim
94 words
An electronic apparatus which performs handwriting recognition comprising: detection means for detecting a position at which a palm of a user is rested; discrimination means for discriminating whether a user who performs handwriting input is right-handed or left-handed on the basis of the position of the palm detected by said detection means; selection means for selecting one of a plurality of dictionaries for character recognition, based on a discrimination result from said discrimination means; and character recognition control means for controlling predetermined character recognition which refers to the dictionary selected by said selection means.
Claim 3
Dependent Claim
16 words
The electronic apparatus according to claim 1, further comprising a hand-held computer with an input pen.
Claim 4
Dependent Claim
51 words
The electronic apparatus according to claim 1, wherein if said discrimination means detects that the user is right-handed, said selection means selects a character recognition dictionary for right-handed input, while if said discrimination means detects that the user if left-handed, said selection means selects a character recognition dictionary for left-handed input.
Claim 5
Dependent Claim
18 words
The electronic apparatus according to claim 1, wherein said discrimination means discriminates a user based on writing pressure.
Claim 6
Dependent Claim
45 words
The electronic apparatus according to claim 4, further comprising memory means for storing a relation between the writing pressure and a character recognition dictionary for the user, wherein said selection means refers to a dictionary corresponding to the writing pressure discriminated by said discrimination means.
Claim 7
Dependent Claim
75 words
A control method for an electronic apparatus which performs handwriting recognition, comprising the steps of: detecting a position at which a palm of a user is rested; discriminating whether a user who performs handwriting input is right-handed or left-handed on the basis of the detected position of the palm; selecting one of a plurality of dictionaries for character recognition, based on the discrimination result; and controlling predetermined character recognition which refers to the dictionary selected.
Claim 8
Dependent Claim
75 words
A control method for an electronic apparatus which performs handwriting recognition, comprising the steps of: detecting a position at which a palm of a user is rested; discriminating whether a user who performs handwriting input is right-handed or left-handed on the basis of the detected position of the palm; selecting one of a plurality of dictionaries for character recognition, based on the discrimination result; and controlling predetermined character recognition which refers to the dictionary selected.
Claim 9
Dependent Claim
18 words
The method according to claim 6, wherein the electronic apparatus is a hand-held computer with an input pen.
Claim 10
Dependent Claim
46 words
The method according to claim 6, further comprising the steps of selecting a character recognition dictionary for right-handed input if it is detected that the user is right-handed, and selecting a character recognition dictionary for left-handed input if it is detected that the user is left-handed.
Claim 11
Dependent Claim
16 words
The method according to claim 6, wherein in the discrimination step, a writing pressure is detected.
Claim 12
Dependent Claim
47 words
The method according to claim 9, wherein the electronic apparatus further comprises a memory for storing a relation between the writing pressure and the character recognition dictionary for the user, and wherein in the selection step, a dictionary corresponding to the detected writing pressure is referred to.
References Cited (Backward Citations)
JPS5762467A
Cited
US4718102A
Cited
JPS60123979A
Cited
US4853494A
Cited
US5265174A
Cited
US5202844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-30 | 2000-12-30 | 2001-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-30 | 2004-12-30 | 2005-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-30 | 2008-12-30 | 2009-07-01 | $7700.00 | Window Closed / Lapsed |