JPH03157712A - 機能キーの操作状態の検出用回路装置 - Google Patents

機能キーの操作状態の検出用回路装置

Info

Publication number
JPH03157712A
JPH03157712A JP2297369A JP29736990A JPH03157712A JP H03157712 A JPH03157712 A JP H03157712A JP 2297369 A JP2297369 A JP 2297369A JP 29736990 A JP29736990 A JP 29736990A JP H03157712 A JPH03157712 A JP H03157712A
Authority
JP
Japan
Prior art keywords
microprocessor
terminals
line
lines
row
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.)
Pending
Application number
JP2297369A
Other languages
English (en)
Japanese (ja)
Inventor
Karl-Heinz Cording
カール‐ハインツ・コルデイング
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke GmbH
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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of JPH03157712A publication Critical patent/JPH03157712A/ja
Pending 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
    • H03M11/20—Dynamic coding, i.e. by key scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
JP2297369A 1989-11-08 1990-11-05 機能キーの操作状態の検出用回路装置 Pending JPH03157712A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893937140 DE3937140A1 (de) 1989-11-08 1989-11-08 Schaltungsanordnung zur abfrage des bedienungszustandes von funktionstasten
DE3937140.9 1989-11-08

Publications (1)

Publication Number Publication Date
JPH03157712A true JPH03157712A (ja) 1991-07-05

Family

ID=6393088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2297369A Pending JPH03157712A (ja) 1989-11-08 1990-11-05 機能キーの操作状態の検出用回路装置

Country Status (3)

Country Link
EP (1) EP0427011A3 (https=)
JP (1) JPH03157712A (https=)
DE (1) DE3937140A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134358A1 (de) * 1991-10-17 1993-04-22 Standard Elektrik Lorenz Ag Schaltungseinrichtung zur abfrage einer tastatur
DE4328663C1 (de) * 1993-08-26 1994-06-09 Grundig Emv Einrichtung zur Abfrage von Bedienelementen
GB2283846B (en) * 1993-11-11 1997-07-16 Alcatel Australia Arrangement for interfacing a keyboard with a microprocessor
CN1143201C (zh) 1996-11-13 2004-03-24 皇家菲利浦电子有限公司 键盘和配有该键盘的装置
DE19817291C2 (de) * 1998-04-18 2003-06-18 Siemens Ag Verfahren und Vorrichtung zur Ermittlung der Stellung von Schalteinrichtungen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667181A (en) * 1983-07-15 1987-05-19 Honeywell Inc. Keyboard data input assembly
FR2575305B1 (fr) * 1984-12-20 1987-02-13 Peugeot Dispositif de commande par touches
US4833672A (en) * 1986-03-10 1989-05-23 Amp Incorporated Multiplex system
FR2603718B1 (fr) * 1986-09-04 1991-10-11 Alexanian Serge Clavier a gestion de touches
US4906993A (en) * 1988-04-04 1990-03-06 John Fluke Mfg. Co., Inc. Keyboard scanner apparatus and method

Also Published As

Publication number Publication date
EP0427011A3 (en) 1992-06-03
DE3937140A1 (de) 1991-05-23
EP0427011A2 (de) 1991-05-15
DE3937140C2 (https=) 1991-08-22

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