ES486595A0 - Metodo y su correspondiente sistema para verificar el fun- cionamiento de las teclas individuales de un teclado - Google Patents

Metodo y su correspondiente sistema para verificar el fun- cionamiento de las teclas individuales de un teclado

Info

Publication number
ES486595A0
ES486595A0 ES486595A ES486595A ES486595A0 ES 486595 A0 ES486595 A0 ES 486595A0 ES 486595 A ES486595 A ES 486595A ES 486595 A ES486595 A ES 486595A ES 486595 A0 ES486595 A0 ES 486595A0
Authority
ES
Spain
Prior art keywords
verify
functioning
keyboard
corresponding system
individual keys
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.)
Granted
Application number
ES486595A
Other languages
English (en)
Other versions
ES8105494A1 (es
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of ES8105494A1 publication Critical patent/ES8105494A1/es
Publication of ES486595A0 publication Critical patent/ES486595A0/es
Granted 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)
ES486595A 1978-12-04 1979-12-04 Metodo y su correspondiente sistema para verificar el fun- cionamiento de las teclas individuales de un teclado Granted ES486595A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/965,852 US4211915A (en) 1978-12-04 1978-12-04 Keyboard verification system

Publications (2)

Publication Number Publication Date
ES8105494A1 ES8105494A1 (es) 1981-05-16
ES486595A0 true ES486595A0 (es) 1981-05-16

Family

ID=25510590

Family Applications (1)

Application Number Title Priority Date Filing Date
ES486595A Granted ES486595A0 (es) 1978-12-04 1979-12-04 Metodo y su correspondiente sistema para verificar el fun- cionamiento de las teclas individuales de un teclado

Country Status (9)

Country Link
US (1) US4211915A (es)
EP (1) EP0011840B1 (es)
JP (1) JPS5597634A (es)
AU (1) AU530110B2 (es)
BR (1) BR7907843A (es)
DE (1) DE2965119D1 (es)
ES (1) ES486595A0 (es)
MX (1) MX147834A (es)
YU (1) YU294779A (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951929C2 (de) * 1979-12-21 1985-09-12 Siemens AG, 1000 Berlin und 8000 München Prüfeinrichtung
US4374381A (en) * 1980-07-18 1983-02-15 Interaction Systems, Inc. Touch terminal with reliable pad selection
EP0062572B1 (fr) * 1981-04-03 1986-10-15 Commissariat à l'Energie Atomique Clavier capacitif à structure antiparasite
US4405917A (en) * 1981-04-28 1983-09-20 Honeywell Inc. Matrix screening and grounding arrangement and method
DE3215074A1 (de) * 1982-04-22 1983-10-27 Siemens AG, 1000 Berlin und 8000 München Anordnung zur anpassung einer pruefeinrichtung an einen pruefling
US4758829A (en) * 1982-06-04 1988-07-19 Smith Iii William N Apparatus for stimulating a keyboard
US4581603A (en) * 1983-03-11 1986-04-08 The Maxi-Switch Company Switch matrix key closure validation device and method
JPS59195755A (ja) * 1983-04-20 1984-11-06 Casio Comput Co Ltd 小型電子機器
US4651133A (en) * 1984-12-24 1987-03-17 At&T Technologies, Inc. Method and apparatus for capacitive keyboard scanning
US4704601A (en) * 1985-06-27 1987-11-03 Illinois Tool Works Inc. Keyboard data entry system with hysteresis
US4728932A (en) * 1986-07-25 1988-03-01 Honeywell Inc. Detector for capacitive sensing devices
US4728931A (en) * 1986-07-25 1988-03-01 Honeywell Inc. Charge redistribution capacitance detection apparatus
US4794375A (en) * 1987-04-13 1988-12-27 Apple Computer, Inc. Keyboard crosspoint encoder having pseudo-n-key rollover
US4922184A (en) * 1988-08-29 1990-05-01 Control Data Corporation Apparatus and process for the simultaneous continuity sensing of multiple circuits
US4926475A (en) * 1988-11-30 1990-05-15 Motorola, Inc. Data encryption key failure monitor
FR2690544B1 (fr) * 1992-04-24 1994-06-17 Sextant Avionique Procede d'exploitation d'un clavier tactile capacitif.
US5572205A (en) * 1993-03-29 1996-11-05 Donnelly Technology, Inc. Touch control system
KR20010025777A (ko) * 1999-09-01 2001-04-06 이형도 키입력장치의 멀티키 처리방법
US20060221061A1 (en) * 2005-03-31 2006-10-05 Tyco Electronic Corporation Touch sensor and control with random pulse spacing
US20060227115A1 (en) * 2005-03-31 2006-10-12 Tyco Electronic Corporation Method and apparatus for touch sensor with interference rejection
WO2017117613A2 (en) * 2015-12-31 2017-07-06 Vasco Data Securty, Inc. An electronic apparatus comprising a linear keypad

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659163A (en) * 1969-07-29 1972-04-25 Konstantin Grigorievich Boriso Pushbutton variable capacitor
US3633015A (en) * 1970-03-09 1972-01-04 Francis F Lee Adjustable cycle length pseudorandom sequence generator
US3675239A (en) * 1970-09-14 1972-07-04 Ncr Co Unlimited roll keyboard circuit
US3735255A (en) * 1971-08-06 1973-05-22 A Goldman Apparatus and method for testing a multi-terminal logic circuit capable of detecting fixed and intermittant faults
US3750113A (en) * 1971-11-12 1973-07-31 Becton Dickinson Co Capacitive keyboard
US3786497A (en) * 1972-07-31 1974-01-15 Ibm Matrix keyboard method and apparatus
US3921166A (en) * 1972-09-15 1975-11-18 Raytheon Co Capacitance matrix keyboard
US3924181A (en) * 1973-10-16 1975-12-02 Hughes Aircraft Co Test circuitry employing a cyclic code generator
US3931610A (en) * 1973-11-29 1976-01-06 Teletype Corporation Capacitive keyswitch sensor and method
US3973256A (en) * 1975-07-14 1976-08-03 Compucorp Key detection system interconnecting keyboard and data processing system
JPS5258423A (en) * 1975-11-10 1977-05-13 Hitachi Ltd Key input circuit possible for roll over
US4044244A (en) * 1976-08-06 1977-08-23 International Business Machines Corporation Automatic tester for complex semiconductor components including combinations of logic, memory and analog devices and processes of testing thereof

Also Published As

Publication number Publication date
EP0011840A1 (en) 1980-06-11
ES8105494A1 (es) 1981-05-16
YU294779A (en) 1982-08-31
AU530110B2 (en) 1983-06-30
AU5257379A (en) 1980-06-12
BR7907843A (pt) 1980-07-29
US4211915A (en) 1980-07-08
EP0011840B1 (en) 1983-03-30
JPS5597634A (en) 1980-07-25
DE2965119D1 (en) 1983-05-05
MX147834A (es) 1983-01-19

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19980202