DE2965995D1 - A noncontacting switch device employing a differential transformer element - Google Patents

A noncontacting switch device employing a differential transformer element

Info

Publication number
DE2965995D1
DE2965995D1 DE7979302017T DE2965995T DE2965995D1 DE 2965995 D1 DE2965995 D1 DE 2965995D1 DE 7979302017 T DE7979302017 T DE 7979302017T DE 2965995 T DE2965995 T DE 2965995T DE 2965995 D1 DE2965995 D1 DE 2965995D1
Authority
DE
Germany
Prior art keywords
switch device
device employing
differential transformer
transformer element
noncontacting switch
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
DE7979302017T
Other languages
English (en)
Inventor
Victor M Bernin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE2965995D1 publication Critical patent/DE2965995D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H03K17/972—Switches controlled by moving an element forming part of the switch using a magnetic movable element having a plurality of control members, e.g. keyboard
DE7979302017T 1978-09-27 1979-09-27 A noncontacting switch device employing a differential transformer element Expired DE2965995D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/946,346 US4300127A (en) 1978-09-27 1978-09-27 Solid state noncontacting keyboard employing a differential transformer element

Publications (1)

Publication Number Publication Date
DE2965995D1 true DE2965995D1 (en) 1983-09-01

Family

ID=25484342

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979302017T Expired DE2965995D1 (en) 1978-09-27 1979-09-27 A noncontacting switch device employing a differential transformer element

Country Status (5)

Country Link
US (1) US4300127A (de)
EP (1) EP0009420B1 (de)
JP (1) JPS5936776B2 (de)
DE (1) DE2965995D1 (de)
WO (1) WO1980000882A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE30131T1 (de) * 1982-04-15 1987-10-15 Alcatel Nv Tastenelement.
US4529967A (en) * 1982-07-15 1985-07-16 Gifft Thomas H Non contacting inductive keyboard
DE3836733A1 (de) * 1988-10-28 1990-05-03 Mannesmann Kienzle Gmbh Schaltungsanordnung zur einstellung des ausloesepunktes in einer induktiven tastatur
CA2192230A1 (en) * 1996-12-05 1998-06-05 Rich Chen Electromagnetic sensitive switch
US5970882A (en) * 1997-11-05 1999-10-26 Smith; David Interactive slot car systems
US20030169135A1 (en) 2001-12-21 2003-09-11 Jun Shen Latching micro-magnetic switch array
US20060265704A1 (en) * 2005-04-21 2006-11-23 Holt John M Computer architecture and method of operation for multi-computer distributed processing with synchronization
US8698756B2 (en) * 2007-11-06 2014-04-15 Stmicroelectronics Asia Pacific Pte Ltd. Interrupt reduction method in touch screen controller
SG153692A1 (en) * 2007-12-19 2009-07-29 St Microelectronics Asia Method of scanning an array of sensors
US7982723B2 (en) * 2008-09-18 2011-07-19 Stmicroelectronics Asia Pacific Pte. Ltd. Multiple touch location in a three dimensional touch screen sensor
CN101834593A (zh) * 2009-03-10 2010-09-15 鸿富锦精密工业（深圳）有限公司 按键结构
CN105719909A (zh) * 2016-02-15 2016-06-29 黄从书 具不同电感值的开关结构
DE202020105904U1 (de) * 2020-10-15 2021-10-18 Cherry Europe Gmbh Einrichtung zur Erfassung eines Tastendrucks eines Tastenmoduls und Tastatur

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL232741A (de) * 1957-10-30
US3443128A (en) * 1965-09-14 1969-05-06 Nasa Superconducting alternator
DE1549489B2 (de) * 1967-03-18 1972-08-31 Kienzle Apparate Gmbh, 7730 Villingen Vorrichtung zur eingabe alphanumerischer informationen in datenverarbeitungsmaschinen
US3683110A (en) * 1968-04-29 1972-08-08 Vogue Instr Corp Encoding device
US3522442A (en) * 1968-06-04 1970-08-04 Ferranti Packard Ltd Switch
US3565014A (en) * 1968-10-03 1971-02-23 Fausto Celorio Mendoza Automatic tortilla-making machines
DE1906117A1 (de) * 1969-02-07 1970-08-20 Philips Electrologica Induktive Tastatur
US3638221A (en) * 1969-11-24 1972-01-25 Illinois Tool Works Solid-state keyboard
US3623080A (en) * 1970-01-02 1971-11-23 Bunker Ramo Self-encoding keyboard employing eddy current shorting
US3612241A (en) * 1970-03-30 1971-10-12 Illinois Tool Works Keyboard switch construction
US3683371A (en) * 1970-09-15 1972-08-08 Burroughs Corp Magnetic keyboard terminal
US3668697A (en) * 1970-09-24 1972-06-06 Hewlett Packard Co Noncontacting keyboard
US3765014A (en) * 1970-10-12 1973-10-09 Syner Data Inc Keyboard
US3698531A (en) * 1970-10-26 1972-10-17 Illinois Tool Works Solid state switch
FR2115703A5 (de) * 1970-11-30 1972-07-07 Cit Alcatel
US3745536A (en) * 1971-03-01 1973-07-10 Burroughs Corp High speed serial scan and read-out of keyboards
US3918051A (en) * 1971-05-19 1975-11-04 Illinois Tool Works N-key rollover keyboard
US3719902A (en) * 1972-01-12 1973-03-06 H Esterly Key switch
US3772684A (en) * 1972-01-26 1973-11-13 Scantlin Elect Inc Push button keyboard with oscillator keying
US3825909A (en) * 1973-02-02 1974-07-23 Illinois Tool Works Solid state switch structure
US3836910A (en) * 1973-03-27 1974-09-17 Illinois Tool Works Solid state phase output switch with noise immunity and diagnostic capabilities

Also Published As

Publication number Publication date
JPS55500680A (de) 1980-09-18
JPS5936776B2 (ja) 1984-09-05
US4300127A (en) 1981-11-10
EP0009420B1 (de) 1983-07-27
WO1980000882A1 (en) 1980-05-01
EP0009420A1 (de) 1980-04-02

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee