DE69630861D1 - Kodier-/Dekodierschaltung für Tastatur mit Eindrahtleitung - Google Patents

Kodier-/Dekodierschaltung für Tastatur mit Eindrahtleitung

Info

Publication number
DE69630861D1
DE69630861D1 DE69630861T DE69630861T DE69630861D1 DE 69630861 D1 DE69630861 D1 DE 69630861D1 DE 69630861 T DE69630861 T DE 69630861T DE 69630861 T DE69630861 T DE 69630861T DE 69630861 D1 DE69630861 D1 DE 69630861D1
Authority
DE
Germany
Prior art keywords
switch
circuit
actuated
ground
switches
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 - Fee Related
Application number
DE69630861T
Other languages
English (en)
Other versions
DE69630861T2 (de
Inventor
Marcus Escobosa
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.)
Universal Electronics Inc
Original Assignee
Universal Electronics Inc
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 Universal Electronics Inc filed Critical Universal Electronics Inc
Publication of DE69630861D1 publication Critical patent/DE69630861D1/de
Application granted granted Critical
Publication of DE69630861T2 publication Critical patent/DE69630861T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/22—Static coding
    • H03M11/24—Static coding using analogue means, e.g. by coding the states of multiple switches into a single multi-level analogue signal or by indicating the type of a device using the voltage level at a specific tap of a resistive divider

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Keying Circuit Devices (AREA)
  • Communication Cables (AREA)
DE69630861T 1995-12-28 1996-12-27 Kodier-/Dekodierschaltung für Tastatur mit Eindrahtleitung Expired - Fee Related DE69630861T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US580162 1995-12-28
US08/580,162 US5619196A (en) 1995-12-28 1995-12-28 Single wire keyboard encode and decode circuit

Publications (2)

Publication Number Publication Date
DE69630861D1 true DE69630861D1 (de) 2004-01-08
DE69630861T2 DE69630861T2 (de) 2004-11-04

Family

ID=24319969

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69630861T Expired - Fee Related DE69630861T2 (de) 1995-12-28 1996-12-27 Kodier-/Dekodierschaltung für Tastatur mit Eindrahtleitung

Country Status (4)

Country Link
US (1) US5619196A (de)
EP (1) EP0782273B1 (de)
AT (1) ATE255297T1 (de)
DE (1) DE69630861T2 (de)

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GB2291762B (en) * 1994-07-26 1999-04-07 Nokia Mobile Phones Ltd Mobile telephone
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US6130726A (en) * 1997-03-24 2000-10-10 Evolve Products, Inc. Program guide on a remote control display
US20050097594A1 (en) 1997-03-24 2005-05-05 O'donnell Frank Systems and methods for awarding affinity points based upon remote control usage
US6005499A (en) * 1997-07-21 1999-12-21 Toshiba America Information Systems, Inc. Systems and methods for generating key press status messages within telecommunications systems or other networks
US6178388B1 (en) * 1998-11-13 2001-01-23 Qualcomm Incorporated Method and apparatus for calibrating a resistive ladder switching matrix
TW439366B (en) * 1999-11-19 2001-06-07 Darfon Electronics Corp Key scanning circuit
US20010033243A1 (en) 2000-03-15 2001-10-25 Harris Glen Mclean Online remote control configuration system
US6784805B2 (en) 2000-03-15 2004-08-31 Intrigue Technologies Inc. State-based remote control system
US7283059B2 (en) * 2000-03-15 2007-10-16 Logitech Europe S.A. Remote control multimedia content listing system
US8531276B2 (en) 2000-03-15 2013-09-10 Logitech Europe S.A. State-based remote control system
US6970752B1 (en) * 2000-05-17 2005-11-29 Hewlett-Packard Development Company, L.P. Method and apparatus for detecting switch closures
US6577250B1 (en) * 2000-05-19 2003-06-10 Microsoft Corporation Resistance based keyboard key discrimination
US20040107138A1 (en) * 2000-10-12 2004-06-03 Maggio Frank S. Method and system for verifying immersion in advertising content via an immersion enhancing content vignette
US20060253330A1 (en) * 2000-10-12 2006-11-09 Maggio Frank S Method and system for automatically substituting media content
US20050060232A1 (en) * 2000-10-12 2005-03-17 Maggio Frank S. Method and system for interacting with a writing
US20030195807A1 (en) * 2000-10-12 2003-10-16 Frank S. Maggio Method and system for verifying exposure to message content via a printed response
US20040015399A1 (en) * 2000-10-12 2004-01-22 Maggio Frank S. Method and system for verifying exposure to message content delivered via outdoor media or in a concentrated format
US20060282319A1 (en) * 2000-10-12 2006-12-14 Maggio Frank S Method and system for substituting media content
US20060129458A1 (en) * 2000-10-12 2006-06-15 Maggio Frank S Method and system for interacting with on-demand video content
DE10100856A1 (de) * 2001-01-11 2002-07-18 Abb Patent Gmbh Installationgsgerät für den Anschluss an EIB-Busleitungen
US6639523B2 (en) * 2001-01-17 2003-10-28 Nokia Corporation Resistive keyboard with status keys
US6784810B2 (en) 2001-05-07 2004-08-31 National Semiconductor Corporation A/D converter with comparators and low-power detection mode for resistive matrix keyboards
US6980135B2 (en) * 2002-01-11 2005-12-27 Alcor Micro, Corp. Logic circuit using hardware to process keyboard scanning
US7391342B1 (en) * 2003-02-05 2008-06-24 Zilog, Inc. Low-cost keypad encoding circuit
US20040220858A1 (en) * 2003-05-02 2004-11-04 Maggio Frank S. Method and system for verifying exposure to message content delivered via subscription networks
JP2006064572A (ja) * 2004-08-27 2006-03-09 Aisin Seiki Co Ltd 座席状態検出装置、車両用ヘッドランプの照射方向調節装置及び着座検出装置
JP4218614B2 (ja) * 2004-08-27 2009-02-04 アイシン精機株式会社 座席状態検出装置、車両用ヘッドランプの照射方向調節装置及び着座検出装置
DE102006018238A1 (de) 2005-04-20 2007-03-29 Logitech Europe S.A. System und Verfahren zur adaptiven Programmierung einer Fernbedienung
US20060271437A1 (en) * 2005-05-26 2006-11-30 Maggio Frank S System and method for home product delivery
JP4818651B2 (ja) 2005-07-13 2011-11-16 ルネサスエレクトロニクス株式会社 暗号化・復号化回路
CN1952853B (zh) * 2005-10-18 2010-04-07 普诚科技股份有限公司 按键装置及其按键侦测方法
US20070233731A1 (en) * 2006-02-22 2007-10-04 Logitech Europe S.A. System and method for configuring media systems
US20070290878A1 (en) * 2006-04-07 2007-12-20 Media Ip Holdings, Llc System and method for interacting with automobile race and advertising content
US20080032277A1 (en) * 2006-04-08 2008-02-07 Media Ip Holdings, Llc Dynamic multiple choice answers
DE102006046092B4 (de) * 2006-09-28 2015-03-26 Volkswagen Ag Steuergerät
US7826525B2 (en) * 2007-02-16 2010-11-02 Illinois Tool Works, Inc. Pulse-based communication for devices connected to a bus
EP1986328A1 (de) * 2007-04-23 2008-10-29 STMicroelectronics (Research & Development) Limited Schaltung und Schaltsystem
WO2009144638A1 (en) * 2008-05-30 2009-12-03 Koninklijke Philips Electronics N.V. Round illumination device
CN201254918Y (zh) * 2008-09-01 2009-06-10 王建华 车库门控制系统
KR100978662B1 (ko) * 2008-09-02 2010-08-30 삼성전기주식회사 키 스캔 회로
US20100066567A1 (en) * 2008-09-18 2010-03-18 Microsoft Corporation Resistive switch matrix
JP4636163B2 (ja) * 2008-10-15 2011-02-23 ソニー株式会社 スイッチ回路
TWI402716B (zh) 2010-02-04 2013-07-21 Novatek Microelectronics Corp 按鍵操作偵測系統與方法
US8508401B1 (en) 2010-08-31 2013-08-13 Logitech Europe S.A. Delay fixing for command codes in a remote control system
US8918544B2 (en) 2011-03-31 2014-12-23 Logitech Europe S.A. Apparatus and method for configuration and operation of a remote-control system
US20120274547A1 (en) 2011-04-29 2012-11-01 Logitech Inc. Techniques for content navigation using proximity sensing
TWM458644U (zh) * 2012-07-19 2013-08-01 Portwell Inc 單一線式構造之多按鍵模組
CN103078648A (zh) * 2012-12-26 2013-05-01 合肥美的荣事达电冰箱有限公司 按键采集电路
DE102013102094A1 (de) * 2013-03-04 2014-09-04 Phoenix Contact Gmbh & Co. Kg Schaltungsanordnung
GB2529441A (en) * 2014-08-20 2016-02-24 Jaguar Land Rover Ltd System for use in steering apparatus
CN105337602B (zh) * 2015-11-17 2018-09-11 深圳市汇春科技股份有限公司 一种单pad实现两个按键的电路及方法
WO2017117613A2 (en) * 2015-12-31 2017-07-06 Vasco Data Securty, Inc. An electronic apparatus comprising a linear keypad
JP6525901B2 (ja) * 2016-02-15 2019-06-05 アルパイン株式会社 キー入力インタフェース装置

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US4015254A (en) * 1975-12-04 1977-03-29 General Motors Corporation Keyboard encoding circuit utilizing an A/D converter
US4118700A (en) 1977-05-31 1978-10-03 Rca Corporation Single wire transmission of multiple switch operations
GB2114341B (en) 1982-01-30 1985-04-11 Ferranti Ltd Monitoring system
JPS60187134A (ja) * 1984-03-06 1985-09-24 Matsushita Electric Ind Co Ltd キ−ボ−ド装置
US4695840A (en) 1985-09-03 1987-09-22 Mobil Oil Corporation Remote switch position determination using duty cycle modulation
US4817010A (en) * 1987-03-02 1989-03-28 Mars Incorporated Vending machine control with improved vendor selector switch detection and decoding apparatus
US4884070A (en) 1988-04-04 1989-11-28 California Institute Of Technology Method and apparatus for multiplexing switch signals
US4987372A (en) * 1989-08-01 1991-01-22 Lutron Electronics Co., Inc. Potentiometer state sensing circuit
US5057699A (en) * 1989-12-20 1991-10-15 Allied-Signal Inc. Switch interface for determining position of a plurality of switches using a determined time
GB2291762B (en) * 1994-07-26 1999-04-07 Nokia Mobile Phones Ltd Mobile telephone

Also Published As

Publication number Publication date
US5619196A (en) 1997-04-08
EP0782273B1 (de) 2003-11-26
EP0782273A3 (de) 1998-09-30
EP0782273A2 (de) 1997-07-02
DE69630861T2 (de) 2004-11-04
ATE255297T1 (de) 2003-12-15

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Legal Events

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