DE69129255D1 - Statusmeldesystem für eine Tastatur - Google Patents

Statusmeldesystem für eine Tastatur

Info

Publication number
DE69129255D1
DE69129255D1 DE69129255T DE69129255T DE69129255D1 DE 69129255 D1 DE69129255 D1 DE 69129255D1 DE 69129255 T DE69129255 T DE 69129255T DE 69129255 T DE69129255 T DE 69129255T DE 69129255 D1 DE69129255 D1 DE 69129255D1
Authority
DE
Germany
Prior art keywords
row
keypad
status reporting
reporting system
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 - Fee Related
Application number
DE69129255T
Other languages
English (en)
Other versions
DE69129255T2 (de
Inventor
Dale E Gulick
Alan F Hendrickson
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.)
Advanced Micro Devices Inc
Original Assignee
Advanced Micro Devices 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 Advanced Micro Devices Inc filed Critical Advanced Micro Devices Inc
Application granted granted Critical
Publication of DE69129255D1 publication Critical patent/DE69129255D1/de
Publication of DE69129255T2 publication Critical patent/DE69129255T2/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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202—Constructional details or processes of manufacture of the input device
    • G06F3/021—Arrangements integrating additional peripherals in a keyboard, e.g. card or barcode reader, optical scanner
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Communication Control (AREA)
  • Alarm Systems (AREA)
DE69129255T 1990-09-27 1991-08-27 Statusmeldesystem für eine Tastatur Expired - Fee Related DE69129255T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/589,065 US5220601A (en) 1990-09-27 1990-09-27 Keypad status reporting system

Publications (2)

Publication Number Publication Date
DE69129255D1 true DE69129255D1 (de) 1998-05-20
DE69129255T2 DE69129255T2 (de) 1998-11-26

Family

ID=24356455

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69129255T Expired - Fee Related DE69129255T2 (de) 1990-09-27 1991-08-27 Statusmeldesystem für eine Tastatur

Country Status (4)

Country Link
US (1) US5220601A (de)
EP (1) EP0478141B1 (de)
AT (1) ATE165201T1 (de)
DE (1) DE69129255T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450080A (en) * 1992-04-22 1995-09-12 Samsung Semiconductor, Inc. Keyboard encoding
US5402468A (en) * 1992-06-15 1995-03-28 Tandy Corporation Telephone answering device with standardized internal bus
US5430443A (en) * 1993-04-12 1995-07-04 National Semiconductor Corporation Scanned switch matrix
US5543786A (en) * 1994-10-18 1996-08-06 United Microelectronics Corp. Keyboard scanning circuit
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
US6542092B1 (en) * 2000-03-06 2003-04-01 Silitek Corporation Keyboard with multiple input/output function
TW563147B (en) * 2002-10-16 2003-11-21 Htc Corp Push button device and its operation method
KR100489688B1 (ko) * 2003-01-24 2005-05-17 삼성전자주식회사 다기능 전화기의 키신호 인식 장치
TWI230887B (en) 2003-07-31 2005-04-11 Htc Corp Keyboard with a detection circuit for generating a control signal
EP1521166B1 (de) 2003-10-02 2013-02-20 HTC Corporation Tastatur
TW200925934A (en) * 2007-12-06 2009-06-16 Avision Inc Key status detecting circuit

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086588A (en) * 1972-06-02 1978-04-25 Canon Kabushiki Kaisha Signal generator
US3928847A (en) * 1974-02-04 1975-12-23 Cpt Corp Fast scan electronic circuit with contact bounce elimination for an automatic typing system keyboard
US4346369A (en) * 1979-10-01 1982-08-24 Phillips Petroleum Company Keyboard encoder-decoder
WO1982000231A1 (en) * 1980-06-30 1982-01-21 Holberg D Tone generator circuit
US4318087A (en) * 1980-09-08 1982-03-02 Rca Corporation Switch closure sensing circuit
JPS6043525B2 (ja) * 1980-12-29 1985-09-28 富士通株式会社 キ−ボ−ド装置
US4414538A (en) * 1981-12-07 1983-11-08 Teletype Corporation Keyboard sense gate
US4554530A (en) * 1981-12-21 1985-11-19 At&T Bell Laboratories Method and apparatus for scanning a matrix of switchable elements
EP0114998B1 (de) * 1982-12-28 1989-06-07 International Business Machines Corporation Serielles Schnittstellen-Tastatursystem
US4706068A (en) * 1985-01-30 1987-11-10 Wyse Technology, Inc. Four wire keyboard interface
JPS62160520A (ja) * 1986-01-08 1987-07-16 Brother Ind Ltd マトリツクススイツチ装置
JPH01314453A (ja) * 1988-06-14 1989-12-19 Nec Corp ダイアラー半導体集積回路
GB2223115B (en) * 1988-09-22 1992-02-05 Bollmann Limited H Improvements in or relating to a keyboard arrangement

Also Published As

Publication number Publication date
US5220601A (en) 1993-06-15
EP0478141B1 (de) 1998-04-15
DE69129255T2 (de) 1998-11-26
EP0478141A2 (de) 1992-04-01
ATE165201T1 (de) 1998-05-15
EP0478141A3 (en) 1993-06-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee