TW331609B - Keying apparatus - Google Patents

Keying apparatus

Info

Publication number
TW331609B
TW331609B TW086103039A TW86103039A TW331609B TW 331609 B TW331609 B TW 331609B TW 086103039 A TW086103039 A TW 086103039A TW 86103039 A TW86103039 A TW 86103039A TW 331609 B TW331609 B TW 331609B
Authority
TW
Taiwan
Prior art keywords
produce
light beams
level
detect
nodes
Prior art date
Application number
TW086103039A
Other languages
English (en)
Inventor
Hsia Chih-Yu
Original Assignee
Hsia Chih-Yu
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 Hsia Chih-Yu filed Critical Hsia Chih-Yu
Application granted granted Critical
Publication of TW331609B publication Critical patent/TW331609B/zh

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
    • H03K17/943—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector using a plurality of optical emitters or detectors, e.g. keyboard
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Electronic Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
TW086103039A 1995-08-24 1997-03-12 Keying apparatus TW331609B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/518,680 US5880462A (en) 1995-08-24 1995-08-24 Keying apparatus with thumb gap

Publications (1)

Publication Number Publication Date
TW331609B true TW331609B (en) 1998-05-11

Family

ID=24065017

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086103039A TW331609B (en) 1995-08-24 1997-03-12 Keying apparatus

Country Status (2)

Country Link
US (1) US5880462A (zh)
TW (1) TW331609B (zh)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7110547B2 (en) * 2000-06-20 2006-09-19 University Of New Hampshire Method and apparatus for the compression and decompression of image files using a chaotic system
US20100238139A1 (en) * 2009-02-15 2010-09-23 Neonode Inc. Optical touch screen systems using wide light beams
US8416217B1 (en) 2002-11-04 2013-04-09 Neonode Inc. Light-based finger gesture user interface
DE102007039718B4 (de) * 2007-08-22 2015-11-05 Wincor Nixdorf International Gmbh Tastatur mit Infrarotsensor
US9063614B2 (en) 2009-02-15 2015-06-23 Neonode Inc. Optical touch screens
KR101789683B1 (ko) * 2011-06-13 2017-11-20 삼성전자주식회사 디스플레이 장치 및 그의 제어 방법, 그리고 리모컨 장치
US9207800B1 (en) 2014-09-23 2015-12-08 Neonode Inc. Integrated light guide and touch screen frame and multi-touch determination method
US9921661B2 (en) 2012-10-14 2018-03-20 Neonode Inc. Optical proximity sensor and associated user interface
US10585530B2 (en) 2014-09-23 2020-03-10 Neonode Inc. Optical proximity sensor
US9164625B2 (en) 2012-10-14 2015-10-20 Neonode Inc. Proximity sensor for determining two-dimensional coordinates of a proximal object
US10324565B2 (en) 2013-05-30 2019-06-18 Neonode Inc. Optical proximity sensor
US10282034B2 (en) 2012-10-14 2019-05-07 Neonode Inc. Touch sensitive curved and flexible displays
CN104749988B (zh) * 2013-12-26 2017-12-05 同方威视技术股份有限公司 用于物体检测的光电开关
CN115039060A (zh) 2019-12-31 2022-09-09 内奥诺德公司 非接触式触摸输入系统
CN116420125A (zh) 2020-09-30 2023-07-11 内奥诺德公司 光学触摸传感器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384201A (en) * 1978-04-24 1983-05-17 Carroll Manufacturing Corporation Three-dimensional protective interlock apparatus
US5136156A (en) * 1988-11-01 1992-08-04 Mitsubishi Denki Kabushiki Kaisha Photoelectric switch
JP2683093B2 (ja) * 1989-04-04 1997-11-26 アルプス電気株式会社 光学式座標入力装置
US5477223A (en) * 1992-08-12 1995-12-19 Destremps; Gerald Finger activated keyboard for a computer

Also Published As

Publication number Publication date
US5880462A (en) 1999-03-09

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