DE3682998D1 - Schaltung fuer tasten. - Google Patents

Schaltung fuer tasten.

Info

Publication number
DE3682998D1
DE3682998D1 DE8686113145T DE3682998T DE3682998D1 DE 3682998 D1 DE3682998 D1 DE 3682998D1 DE 8686113145 T DE8686113145 T DE 8686113145T DE 3682998 T DE3682998 T DE 3682998T DE 3682998 D1 DE3682998 D1 DE 3682998D1
Authority
DE
Germany
Prior art keywords
keys
switching
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 - Lifetime
Application number
DE8686113145T
Other languages
English (en)
Inventor
Hiroshi C O Patent Divi Ushiki
Tetsuaki Iwasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tosbac Computer System Co Ltd
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 Toshiba Corp, Tosbac Computer System Co Ltd filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE3682998D1 publication Critical patent/DE3682998D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H03M11/20—Dynamic coding, i.e. by key scanning

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)
  • Electronic Switches (AREA)
  • Logic Circuits (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Liquid Crystal Display Device Control (AREA)
DE8686113145T 1985-09-30 1986-09-24 Schaltung fuer tasten. Expired - Lifetime DE3682998D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60216700A JPS6275828A (ja) 1985-09-30 1985-09-30 キ−回路

Publications (1)

Publication Number Publication Date
DE3682998D1 true DE3682998D1 (de) 1992-01-30

Family

ID=16692550

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686113145T Expired - Lifetime DE3682998D1 (de) 1985-09-30 1986-09-24 Schaltung fuer tasten.

Country Status (6)

Country Link
US (1) US4701748A (de)
EP (1) EP0217283B1 (de)
JP (1) JPS6275828A (de)
KR (1) KR910001952B1 (de)
CN (1) CN1006012B (de)
DE (1) DE3682998D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5386584A (en) * 1990-06-14 1995-01-31 Chips And Technologies, Inc. Interrupt-generating keyboard scanner using an image RAM
ES2040172B1 (es) * 1991-12-31 1994-05-01 Alcatel Standard Electrica Procedimiento y dispositivo para la lectura de teclados.
US5677687A (en) * 1996-07-08 1997-10-14 Vlsi Technology, Inc. Zero DC power keyboard scanner using bidirectional I/O's with repeaters
US5914677A (en) * 1997-01-15 1999-06-22 Chips & Technologies, Inc. Apparatus and method for scanning a switch array
US5831556A (en) * 1997-06-06 1998-11-03 Vlsi Technology, Inc. Pin-reduced low power keyboard scanner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7213611A (de) * 1971-10-08 1973-04-10
US4163222A (en) * 1976-02-27 1979-07-31 Amkey, Incorporated Synchronous phase detected keyboard
JPS5371530A (en) * 1976-12-08 1978-06-26 Hitachi Ltd Input circuit
US4303907A (en) * 1979-12-17 1981-12-01 Rca Corporation Low power switch closure sensing circuit
GB2080585B (en) * 1980-07-22 1984-07-04 Tokyo Shibaura Electric Co Semiconductor integrated circuit with reduced power consumption
DE3369449D1 (en) * 1982-05-07 1987-02-26 Philips Electronic Associated Data entry keyboard apparatus
JPS59105131A (ja) * 1982-12-08 1984-06-18 Toshiba Corp 入出力回路装置
JPS625798A (ja) * 1985-02-05 1987-01-12 Nec Corp 制御信号発生回路

Also Published As

Publication number Publication date
KR910001952B1 (ko) 1991-03-30
JPS6275828A (ja) 1987-04-07
KR870003424A (ko) 1987-04-17
EP0217283B1 (de) 1991-12-18
JPH0574854B2 (de) 1993-10-19
US4701748A (en) 1987-10-20
CN86106701A (zh) 1987-06-10
EP0217283A2 (de) 1987-04-08
EP0217283A3 (en) 1988-10-05
CN1006012B (zh) 1989-12-06

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: KABUSHIKI KAISHA TOSHIBA, KAWASAKI, KANAGAWA, JP T

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee