HK1109468A1 - Input method and device for determining handwritten track using ultrasonic - Google Patents
Input method and device for determining handwritten track using ultrasonicInfo
- Publication number
- HK1109468A1 HK1109468A1 HK07113974.6A HK07113974A HK1109468A1 HK 1109468 A1 HK1109468 A1 HK 1109468A1 HK 07113974 A HK07113974 A HK 07113974A HK 1109468 A1 HK1109468 A1 HK 1109468A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- ultrasonic
- input method
- handwritten track
- determining
- determining handwritten
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005101212605A CN1987762B (en) | 2005-12-23 | 2005-12-23 | Input method and device for determining hand writing track by ultrasonic wave |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1109468A1 true HK1109468A1 (en) | 2008-06-06 |
Family
ID=38184577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK07113974.6A HK1109468A1 (en) | 2005-12-23 | 2007-12-20 | Input method and device for determining handwritten track using ultrasonic |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN1987762B (en) |
HK (1) | HK1109468A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102183758A (en) * | 2011-02-25 | 2011-09-14 | 深圳易方数码科技股份有限公司 | Ultrasonic receiving window and ultrasonic input device |
CN104571633B (en) * | 2013-10-29 | 2017-11-28 | 联想(北京)有限公司 | A kind of person's handwriting acquisition methods, device and ultrasonic electronic pen |
CN103616955A (en) * | 2013-12-10 | 2014-03-05 | 步步高教育电子有限公司 | Calligraphy or gesture recognition method and device |
CN103810507A (en) * | 2014-02-13 | 2014-05-21 | 步步高教育电子有限公司 | Automatic error correction equipment and method for word writing |
CN107415527A (en) * | 2017-05-24 | 2017-12-01 | 王金锁 | One kind has memory function lettering pen |
CN108549495A (en) * | 2018-04-02 | 2018-09-18 | 昆山中骏博研互联网科技有限公司 | A kind of handwriting trace input method and device |
CN108399813B (en) * | 2018-05-04 | 2021-06-01 | 广东小天才科技有限公司 | Robot-based learning tutoring method and system, robot and handwriting equipment |
CN110850419B (en) * | 2019-11-28 | 2022-07-01 | 深圳大学 | Handwriting signature recognition method based on acoustics |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1110801A (en) * | 1994-09-27 | 1995-10-25 | 张志国 | Processing system for script characters |
FR2790554B1 (en) * | 1999-03-03 | 2001-06-29 | Schlumberger Ind Sa | METHOD AND DEVICE FOR MEASURING THE PROPAGATION TIME OF A SIGNAL, IN PARTICULAR OF AN ULTRASONIC SIGNAL |
CN2630929Y (en) * | 2003-06-20 | 2004-08-04 | 刘习杰 | Blackboard-writing system for supersonic positioning recording blackboard-writing |
CN1556498A (en) * | 2004-01-06 | 2004-12-22 | 东华大学 | Non identification type hand wrighting input method and its device |
-
2005
- 2005-12-23 CN CN2005101212605A patent/CN1987762B/en active Active
-
2007
- 2007-12-20 HK HK07113974.6A patent/HK1109468A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN1987762A (en) | 2007-06-27 |
CN1987762B (en) | 2011-01-12 |
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