HK1109468A1 - Input method and device for determining handwritten track using ultrasonic - Google Patents

Input method and device for determining handwritten track using ultrasonic

Info

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
Application number
HK07113974.6A
Inventor
Dewei Yu
Original Assignee
Netac Technology Co Ltd
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 Netac Technology Co Ltd filed Critical Netac Technology Co Ltd
Publication of HK1109468A1 publication Critical patent/HK1109468A1/en

Links

HK07113974.6A 2005-12-23 2007-12-20 Input method and device for determining handwritten track using ultrasonic HK1109468A1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CN1987762A (en) 2007-06-27
CN1987762B (en) 2011-01-12

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