CA1205205A - Serial keyboard interface system - Google Patents

Serial keyboard interface system

Info

Publication number
CA1205205A
CA1205205A CA000439560A CA439560A CA1205205A CA 1205205 A CA1205205 A CA 1205205A CA 000439560 A CA000439560 A CA 000439560A CA 439560 A CA439560 A CA 439560A CA 1205205 A CA1205205 A CA 1205205A
Authority
CA
Canada
Prior art keywords
keyboard
data
clock
line
signal
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
CA000439560A
Other languages
English (en)
French (fr)
Inventor
Satoshi Tajima
Shinpei Watanabe
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA1205205A publication Critical patent/CA1205205A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • G06F11/076—Error or fault detection not based on redundancy by exceeding limits by exceeding a count or rate limit, e.g. word- or bit count limit
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Human Computer Interaction (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Communication Control (AREA)
CA000439560A 1982-12-28 1983-10-24 Serial keyboard interface system Expired CA1205205A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57-227,846 1982-12-28
JP57227846A JPS59123336A (ja) 1982-12-28 1982-12-28 直列キ−ボ−ド・インタフエ−ス・システム

Publications (1)

Publication Number Publication Date
CA1205205A true CA1205205A (en) 1986-05-27

Family

ID=16867284

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000439560A Expired CA1205205A (en) 1982-12-28 1983-10-24 Serial keyboard interface system

Country Status (3)

Country Link
US (1) US4644497A (enExample)
JP (1) JPS59123336A (enExample)
CA (1) CA1205205A (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219633A (ja) * 1982-06-14 1983-12-21 Alps Electric Co Ltd マイコン化エンコ−ダを有するキ−ボ−ド
JPS61223924A (ja) * 1985-03-29 1986-10-04 Hitachi Ltd 信号伝送方式
US4845522A (en) * 1986-11-04 1989-07-04 Hiroyuki Kataoka Data communication system for camera system
US5146584A (en) * 1989-02-27 1992-09-08 Data General Corporation Keyboard interface system allowing a synchronous keyboard to communicate with a host processor asynchronously by manipulating the keyboard clock's state
US5056057A (en) * 1989-05-03 1991-10-08 Compaq Computer Corporation Keyboard interface for use in computers incorporating terminate-and-stay-resident programs
US5146567A (en) * 1989-08-22 1992-09-08 Acer Incorporated Keyboard interface
US5210867A (en) * 1990-10-05 1993-05-11 Bull Hn Information Systems Inc. Method and apparatus for memory retry
US5459462A (en) * 1993-12-09 1995-10-17 Onspec Electronic, Inc. Keyboard controller state machine
IL112927A (en) * 1995-03-07 1998-07-15 Powerspectrum Technology Ltd An appointment unit for use in a multi-approach communication system
JP3233571B2 (ja) * 1996-04-30 2001-11-26 アルプス電気株式会社 信号処理システム
JP4074406B2 (ja) * 1999-03-17 2008-04-09 インターナショナル・ビジネス・マシーンズ・コーポレーション 特殊キーに割り当てた複数のキー機能を切り替える方法
US7446676B2 (en) * 2005-12-28 2008-11-04 Broadcom Corporation Self-scan programmable keypad interface

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200913A (en) * 1977-04-13 1980-04-29 International Business Machines Corporation Operator controlled programmable keyboard apparatus
US4354252A (en) * 1977-09-27 1982-10-12 Motorola, Inc. Programmable digital data terminal for mobile radio transceivers
US4271479A (en) * 1977-10-20 1981-06-02 International Business Machines Corporation Display terminal with modularly attachable features
JPS5495105A (en) * 1978-01-13 1979-07-27 Hitachi Ltd Data transfer system
JPS55129826A (en) * 1979-03-28 1980-10-08 Canon Inc Input unit
FR2483657B1 (fr) * 1980-05-30 1986-11-21 Bull Sa Machine portable pour le calcul ou le traitement de l'information
US4392197A (en) * 1980-08-12 1983-07-05 Pitney Bowes Inc. Print control circuit for a word processing system
US4527250A (en) * 1980-09-11 1985-07-02 Allen-Bradley Company Video computer terminal with detachable intelligent keyboard module
JPS57105023A (en) * 1980-12-23 1982-06-30 Toshiba Corp Data transfer system
US4460957A (en) * 1981-08-12 1984-07-17 International Business Machines Corporation Self-pacing serial keyboard interface for data processing system
US4532416A (en) * 1983-01-03 1985-07-30 Patrick Berstein Transaction terminal with simplified data entry
US4536647A (en) * 1983-07-15 1985-08-20 Atalla Corporation Pocket banking terminal, method and system

Also Published As

Publication number Publication date
JPS59123336A (ja) 1984-07-17
JPH0216627B2 (enExample) 1990-04-17
US4644497A (en) 1987-02-17

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Legal Events

Date Code Title Description
MKEX Expiry