DE3170015D1 - Photo-optical keyboard having light attenuating means - Google Patents

Photo-optical keyboard having light attenuating means

Info

Publication number
DE3170015D1
DE3170015D1 DE8181108171T DE3170015T DE3170015D1 DE 3170015 D1 DE3170015 D1 DE 3170015D1 DE 8181108171 T DE8181108171 T DE 8181108171T DE 3170015 T DE3170015 T DE 3170015T DE 3170015 D1 DE3170015 D1 DE 3170015D1
Authority
DE
Germany
Prior art keywords
photo
attenuating means
light attenuating
optical keyboard
keyboard
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE8181108171T
Other languages
English (en)
Inventor
Richard Ira Ely
Edward I Nelson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unisys Corp
Original Assignee
Burroughs Corp
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 Burroughs Corp filed Critical Burroughs Corp
Application granted granted Critical
Publication of DE3170015D1 publication Critical patent/DE3170015D1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • 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
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
    • H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
DE8181108171T 1980-12-24 1981-10-10 Photo-optical keyboard having light attenuating means Expired DE3170015D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/220,130 US4379968A (en) 1980-12-24 1980-12-24 Photo-optical keyboard having light attenuating means

Publications (1)

Publication Number Publication Date
DE3170015D1 true DE3170015D1 (en) 1985-05-23

Family

ID=22822194

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181108171T Expired DE3170015D1 (en) 1980-12-24 1981-10-10 Photo-optical keyboard having light attenuating means

Country Status (4)

Country Link
US (1) US4379968A (de)
EP (1) EP0054644B1 (de)
JP (1) JPS57136247A (de)
DE (1) DE3170015D1 (de)

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FR2576433A1 (fr) * 1985-01-24 1986-07-25 Souloumiac Alain Clavier optique pour ordinateur
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FR2596222B1 (fr) * 1986-03-19 1992-02-07 Souloumiac Alain Amelioration des claviers optiques
FR2597988A1 (fr) * 1986-04-25 1987-10-30 Souloumiac Alain Amelioration des claviers optiques a balayage matriciel
DE3700856A1 (de) * 1987-01-14 1988-07-28 Telefunken Electronic Gmbh Optoelektronische tastatur
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JPS63285821A (ja) * 1987-05-18 1988-11-22 Shinko Denki Kk 押釦スイッチ
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US4878722A (en) * 1988-06-24 1989-11-07 Korry Electronics Company Wavelength encoded optical switches
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US5477223A (en) * 1992-08-12 1995-12-19 Destremps; Gerald Finger activated keyboard for a computer
AU6018494A (en) * 1993-05-21 1994-12-20 Arthur D. Little Enterprises, Inc. User-configurable control device
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US6871978B2 (en) 1998-11-13 2005-03-29 Lightpath Technologies, Inc. Computer keyboard backlighting
US20090091478A1 (en) * 1998-11-13 2009-04-09 Chan Sam E J Computer keyboard backlighting
US6765503B1 (en) 1998-11-13 2004-07-20 Lightpath Technologies, Inc. Backlighting for computer keyboard
US20080212307A1 (en) * 1998-11-13 2008-09-04 Chan Sam E J Computer keyboard backlighting
US7335843B2 (en) * 1998-11-13 2008-02-26 Firefly International, Inc. Computer keyboard backlighting
JP2004500682A (ja) 1998-11-13 2004-01-08 クエステック・インターナショナル，インコーポレイテッド コンピュータキーボード用の背面照明
US6157026A (en) * 1998-11-19 2000-12-05 Maxtec International Corporation Optical switch of the multiple push button type for producing a plurality of control signals
US6201905B1 (en) 1999-02-05 2001-03-13 Telemotive Industrial Controls Optical switch with controlled voltage output
US6181847B1 (en) 1999-05-10 2001-01-30 Ametek, Inc. Optical switch
US6525677B1 (en) * 2000-08-28 2003-02-25 Motorola, Inc. Method and apparatus for an optical laser keypad
US9193174B2 (en) 2004-03-12 2015-11-24 Advantage Technology And Innovations, Inc. Device and method for identifying stacking and splitting of stenographic keystrokes
US8096714B2 (en) * 2006-10-31 2012-01-17 Advantage Technology And Innovations, Inc. Stenographic keyboard device providing extended set of keys and method for electronically adjusting key depth sensitivity
US8756353B2 (en) 2004-03-12 2014-06-17 Advantage Technology And Innovations, Inc. Device and method for reinterpreting stored stenographic keystrokes
US7528824B2 (en) * 2004-09-30 2009-05-05 Microsoft Corporation Keyboard or other input device using ranging for detection of control piece movement
US20060213997A1 (en) * 2005-03-23 2006-09-28 Microsoft Corporation Method and apparatus for a cursor control device barcode reader
US7268705B2 (en) * 2005-06-17 2007-09-11 Microsoft Corporation Input detection based on speckle-modulated laser self-mixing
US20070002020A1 (en) * 2005-06-29 2007-01-04 Microsoft Corporation Optical mouse
US7557795B2 (en) * 2005-06-30 2009-07-07 Microsoft Corporation Input device using laser self-mixing velocimeter
US7283214B2 (en) * 2005-10-14 2007-10-16 Microsoft Corporation Self-mixing laser range sensor
US7543750B2 (en) * 2005-11-08 2009-06-09 Microsoft Corporation Laser velocimetric image scanning
US20070109267A1 (en) * 2005-11-14 2007-05-17 Microsoft Corporation Speckle-based two-dimensional motion tracking
US7446677B2 (en) * 2005-11-14 2008-11-04 Avago Technologies Ecbu Ip Pte Ltd Method and apparatus for optically detecting selections made on an input device
US7505033B2 (en) * 2005-11-14 2009-03-17 Microsoft Corporation Speckle-based two-dimensional motion tracking
US20090128495A1 (en) * 2007-11-20 2009-05-21 Microsoft Corporation Optical input device
TWI399679B (zh) * 2009-04-30 2013-06-21 Raydium Semiconductor Corportation 資料輸入裝置及電子裝置
US20110025606A1 (en) * 2009-07-29 2011-02-03 Stenograph, L.L.C. Method and apparatus for measuring keystroke
DE102010014169A1 (de) * 2010-04-08 2011-10-13 Giesecke & Devrient Gmbh Portabler Datenträger mit Eingabeeinrichtung
KR101816721B1 (ko) * 2011-01-18 2018-01-10 삼성전자주식회사 센싱 모듈, ｇｕｉ 제어 장치 및 방법
KR20150017945A (ko) * 2013-08-08 2015-02-23 삼성전자주식회사 신호입력장치 및 이를 포함하는 자기공명영상장치
US10199025B2 (en) * 2014-08-23 2019-02-05 Moon Key Lee Image capturing device and electronic keyboard using the image capturing device
CN106505982B (zh) * 2016-12-12 2018-05-08 深圳市煌兆铭科技有限公司 光电机械开关、机械键盘、及加速执行方法
KR102047881B1 (ko) * 2018-04-12 2019-11-22 고한결 광축키보드
CN111312547B (zh) * 2019-06-18 2023-08-04 光宝电子(广州)有限公司 按键模块、应用其的键盘及电子装置

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US3579047A (en) * 1968-02-13 1971-05-18 Diehl Fa Keyboard using switches having light obstructing elements
US3767022A (en) * 1970-04-24 1973-10-23 Singer Co Return spring key stem boot
US3668407A (en) * 1970-05-28 1972-06-06 Texas Instruments Inc Optical switching for keyboard encoder
US3787837A (en) * 1971-04-19 1974-01-22 Cogar Corp Modular optical apparatus
DE2139543B2 (de) * 1971-08-06 1974-03-07 Standard Elektrik Lorenz Ag, 7000 Stuttgart Fotoelektrische Tastatur für Dateneingabegeräte oder dergleichen
US3818485A (en) * 1973-03-30 1974-06-18 Western Digital Syst Inc Keyboard apparatus
JPS5137174U (de) * 1974-09-03 1976-03-19
JPS5150476A (de) * 1974-10-30 1976-05-04 Oki Electric Ind Co Ltd
JPS5812604B2 (ja) * 1977-07-28 1983-03-09 株式会社北電子 マトリックス・キ−ボ−ド
NL7800925A (nl) * 1978-01-25 1979-07-27 Nedap Nv Cooerdinaatschakelstelsel.
EP0004520A1 (de) * 1978-03-24 1979-10-03 International Business Machines Corporation Tastatur mit einer aus Lichtteilern aufgebauten Matrix

Also Published As

Publication number Publication date
JPS57136247A (en) 1982-08-23
US4379968A (en) 1983-04-12
EP0054644B1 (de) 1985-04-17
JPH0216525B2 (de) 1990-04-17
EP0054644A1 (de) 1982-06-30

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee