DE69524189D1 - Dekodierungsmethode für ein elektronisches Schlüsselsystem - Google Patents

Dekodierungsmethode für ein elektronisches Schlüsselsystem

Info

Publication number
DE69524189D1
DE69524189D1 DE69524189T DE69524189T DE69524189D1 DE 69524189 D1 DE69524189 D1 DE 69524189D1 DE 69524189 T DE69524189 T DE 69524189T DE 69524189 T DE69524189 T DE 69524189T DE 69524189 D1 DE69524189 D1 DE 69524189D1
Authority
DE
Germany
Prior art keywords
decoding method
electronic key
key system
electronic
decoding
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
DE69524189T
Other languages
English (en)
Other versions
DE69524189T2 (de
Inventor
Paul Michael Progar
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Publication of DE69524189D1 publication Critical patent/DE69524189D1/de
Application granted granted Critical
Publication of DE69524189T2 publication Critical patent/DE69524189T2/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
    • H03M11/02—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Lock And Its Accessories (AREA)
  • Input From Keyboards Or The Like (AREA)
DE69524189T 1994-10-31 1995-10-06 Dekodierungsmethode für ein elektronisches Schlüsselsystem Expired - Fee Related DE69524189T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/332,189 US5552781A (en) 1994-10-31 1994-10-31 Fault tolerant method of decoding an electronic key system

Publications (2)

Publication Number Publication Date
DE69524189D1 true DE69524189D1 (de) 2002-01-10
DE69524189T2 DE69524189T2 (de) 2002-07-18

Family

ID=23297112

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69524189T Expired - Fee Related DE69524189T2 (de) 1994-10-31 1995-10-06 Dekodierungsmethode für ein elektronisches Schlüsselsystem

Country Status (4)

Country Link
US (1) US5552781A (de)
EP (1) EP0709972B1 (de)
JP (1) JPH08226267A (de)
DE (1) DE69524189T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19723188B4 (de) * 1997-06-03 2007-10-18 Robert Bosch Gmbh Verfahren zur Auswertung von Signalzuständen von Tasten
US7453376B2 (en) * 2004-09-09 2008-11-18 Hewlett-Packard Development Company, L.P. Method, apparatus, and computer-readable medium for key press determination
EP2267580B1 (de) * 2009-06-25 2019-05-15 BlackBerry Limited Verfahren zur Erkennung und Herstellung von festsitzenden Tasten einer elektronischen Vorrichtungstastatur
US8692694B2 (en) 2009-06-25 2014-04-08 Blackberry Limited Method to detect and recover from stuck keys on an electronic device keyboard

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720938A (en) * 1971-04-19 1973-03-13 Lematex Inc System for preventing erroneous data output signals from an electrical keyboard
US3932838A (en) * 1971-04-23 1976-01-13 General Electric Company Method and apparatus for controlling circuitry with a plurality of switching means
JPS5583095A (en) * 1978-12-18 1980-06-23 Kawai Musical Instr Mfg Co Allocating device for keyboarddswitch information
US4266213A (en) * 1979-12-10 1981-05-05 Itt Industries, Inc. Circuit arrangement for an input keyboard
JPS58213330A (ja) * 1982-06-07 1983-12-12 Victor Co Of Japan Ltd キ−入力判別装置
US4617554A (en) * 1983-08-26 1986-10-14 Zenith Electronics Corporation Keyboard scanning
GB8409877D0 (en) * 1984-04-17 1984-05-31 Binstead Ronald Peter Capacitance effect keyboard
JPS6132127A (ja) * 1984-07-24 1986-02-14 Alps Electric Co Ltd キーボードのキーコード出力装置
NZ214078A (en) * 1984-11-10 1988-08-30 Int Computers Ltd Keyboard subset powered by standby source during mains failure
US4918445A (en) * 1988-07-20 1990-04-17 Hewlett-Packard Company Scanning, row-column type keyboard
US4959831A (en) * 1989-07-31 1990-09-25 Chrysler Corporation Single wire bus smart keypad controller system
US5036320A (en) * 1989-07-31 1991-07-30 Chrysler Corporation Smart multiple switch scanner, single wire bus multiplex system therefor
KR930005841B1 (ko) * 1990-10-27 1993-06-25 삼성전자 주식회사 마이크로_콤퓨터시스템의 키스캔회로 및 그 방법
US5457455A (en) * 1992-09-22 1995-10-10 Rockwell International Corporation Real time keyboard scanner

Also Published As

Publication number Publication date
EP0709972A1 (de) 1996-05-01
EP0709972B1 (de) 2001-11-28
US5552781A (en) 1996-09-03
JPH08226267A (ja) 1996-09-03
DE69524189T2 (de) 2002-07-18

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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