CA923431A - Self-encoding keyboard employing eddy current shorting - Google Patents

Self-encoding keyboard employing eddy current shorting

Info

Publication number
CA923431A
CA923431A CA100703A CA100703A CA923431A CA 923431 A CA923431 A CA 923431A CA 100703 A CA100703 A CA 100703A CA 100703 A CA100703 A CA 100703A CA 923431 A CA923431 A CA 923431A
Authority
CA
Canada
Prior art keywords
self
eddy current
current shorting
keyboard employing
employing eddy
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
CA100703A
Other languages
English (en)
Other versions
CA100703S (en
Inventor
D. Scarbrough Alfred
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.)
Bunker Ramo Corp
Original Assignee
Bunker Ramo 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 Bunker Ramo Corp filed Critical Bunker Ramo Corp
Application granted granted Critical
Publication of CA923431A publication Critical patent/CA923431A/en
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
    • 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
    • H03M11/22—Static coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs
    • 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
    • H03K2017/9706—Inductive element

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
CA100703A 1970-01-02 1970-12-15 Self-encoding keyboard employing eddy current shorting Expired CA923431A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16070A 1970-01-02 1970-01-02
US573770A 1970-01-26 1970-01-26

Publications (1)

Publication Number Publication Date
CA923431A true CA923431A (en) 1973-03-27

Family

ID=26667289

Family Applications (1)

Application Number Title Priority Date Filing Date
CA100703A Expired CA923431A (en) 1970-01-02 1970-12-15 Self-encoding keyboard employing eddy current shorting

Country Status (9)

Country Link
US (2) US3623080A (de)
JP (1) JPS529097B1 (de)
CA (1) CA923431A (de)
CH (1) CH529480A (de)
DE (1) DE2063292C3 (de)
FR (1) FR2075168A5 (de)
GB (1) GB1317141A (de)
NL (1) NL7018374A (de)
SE (1) SE366408B (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2115703A5 (de) * 1970-11-30 1972-07-07 Cit Alcatel
US4117438A (en) * 1977-04-13 1978-09-26 Datanetics Corporation Contactless keyswitch for keyboards
US4494109A (en) * 1978-09-27 1985-01-15 Bernin Victor M Noncontacting keyboard employing a transformer element
US4300127A (en) * 1978-09-27 1981-11-10 Bernin Victor M Solid state noncontacting keyboard employing a differential transformer element
US4283714A (en) * 1979-08-08 1981-08-11 Texas Instruments Incorporated Magnetic keyboard system
US4401986A (en) * 1979-12-26 1983-08-30 Texas Instruments Incorporated Position sensor and system
US4398180A (en) * 1980-06-26 1983-08-09 International Standard Electric Corporation Contactless keyboard
FR2518334B1 (fr) * 1981-12-15 1986-02-14 Cit Alcatel Clavier electrique a commande magnetique
JPS60148019A (ja) * 1983-12-22 1985-08-05 アンプ　インコーポレーテツド 膜スイツチ組立体
DE19506509C2 (de) * 1995-02-24 1996-12-05 Preh Elektro Feinmechanik Tastenfeld für Verkaufs- und Registrierkassen
US7791506B2 (en) * 2007-03-30 2010-09-07 Zf Friedrichshafen Ag Configurable networked user interface and switch pack

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210734A (en) * 1959-06-30 1965-10-05 Ibm Magnetic core transfer matrix
US3160875A (en) * 1962-08-01 1964-12-08 Sperry Rand Corp Magnetic encoder
US3495236A (en) * 1969-04-16 1970-02-10 Burroughs Corp Transducer

Also Published As

Publication number Publication date
US3623081A (en) 1971-11-23
US3623080A (en) 1971-11-23
GB1317141A (en) 1973-05-16
DE2063292C3 (de) 1979-09-27
SE366408B (de) 1974-04-22
FR2075168A5 (de) 1971-10-08
NL7018374A (de) 1971-07-06
CH529480A (de) 1972-10-15
DE2063292A1 (de) 1972-06-15
JPS529097B1 (de) 1977-03-14
DE2063292B2 (de) 1979-02-08

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