CN1006012B - 键控电路 - Google Patents

键控电路 Download PDF

Info

Publication number
CN1006012B
CN1006012B CN86106701.0A CN86106701A CN1006012B CN 1006012 B CN1006012 B CN 1006012B CN 86106701 A CN86106701 A CN 86106701A CN 1006012 B CN1006012 B CN 1006012B
Authority
CN
China
Prior art keywords
signal
circuit
signals
key
time
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
CN86106701.0A
Other languages
English (en)
Chinese (zh)
Other versions
CN86106701A (zh
Inventor
牛木浩
岩崎哲昭
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.)
Tosback Computer Systems Co ltd
Toshiba Corp
Original Assignee
Tosback Computer Systems Co ltd
Toshiba 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 Tosback Computer Systems Co ltd, Toshiba Corp filed Critical Tosback Computer Systems Co ltd
Publication of CN86106701A publication Critical patent/CN86106701A/zh
Publication of CN1006012B publication Critical patent/CN1006012B/zh
Expired legal-status Critical Current

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Classifications

    • 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
    • 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)
CN86106701.0A 1985-09-30 1986-09-29 键控电路 Expired CN1006012B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60216700A JPS6275828A (ja) 1985-09-30 1985-09-30 キ−回路
JP216700/85 1985-09-30

Publications (2)

Publication Number Publication Date
CN86106701A CN86106701A (zh) 1987-06-10
CN1006012B true CN1006012B (zh) 1989-12-06

Family

ID=16692550

Family Applications (1)

Application Number Title Priority Date Filing Date
CN86106701.0A Expired CN1006012B (zh) 1985-09-30 1986-09-29 键控电路

Country Status (6)

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

Families Citing this family (6)

* 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
RU2131142C1 (ru) * 1996-07-23 1999-05-27 Пшеницын Юрий Михайлович Устройство для ввода информации
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
CA960587A (en) * 1971-10-08 1975-01-07 Kosei Nomiya Key input circuit system for electronic apparatus
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
EP0094130B1 (en) * 1982-05-07 1987-01-21 Philips Electronics Uk Limited 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
EP0217283B1 (en) 1991-12-18
JPS6275828A (ja) 1987-04-07
DE3682998D1 (de) 1992-01-30
JPH0574854B2 (enExample) 1993-10-19
KR870003424A (ko) 1987-04-17
EP0217283A3 (en) 1988-10-05
US4701748A (en) 1987-10-20
CN86106701A (zh) 1987-06-10
EP0217283A2 (en) 1987-04-08
KR910001952B1 (ko) 1991-03-30

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C13 Decision
GR02 Examined patent application
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term