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GB1223099A - Improvements in and relating to electrical switches - Google Patents

Improvements in and relating to electrical switches

Info

Publication number
GB1223099A
GB1223099A GB3788869A GB3788869A GB1223099A GB 1223099 A GB1223099 A GB 1223099A GB 3788869 A GB3788869 A GB 3788869A GB 3788869 A GB3788869 A GB 3788869A GB 1223099 A GB1223099 A GB 1223099A
Authority
GB
United Kingdom
Prior art keywords
push
electrode
rod
fixed electrodes
increase
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
GB3788869A
Inventor
Konstantin Grigorievic Borisov
Josif Leibovich Markham
Leonid Semenovich Sitnikov
Lev Lazarevich Utyakov
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.)
ZD ELEKTROIZMERITELNYKH PRIBOR
Original Assignee
ZD ELEKTROIZMERITELNYKH PRIBOR
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 ZD ELEKTROIZMERITELNYKH PRIBOR filed Critical ZD ELEKTROIZMERITELNYKH PRIBOR
Priority to GB3788869A priority Critical patent/GB1223099A/en
Priority to DE19691940554 priority patent/DE1940554A1/en
Priority to FR6927513A priority patent/FR2055758A1/fr
Priority to BE737765D priority patent/BE737765A/xx
Publication of GB1223099A publication Critical patent/GB1223099A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • 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
    • H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
    • 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
    • H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
    • H03K17/98—Switches controlled by moving an element forming part of the switch using a capacitive movable element having a plurality of control members, e.g. keyboard

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

1,223,099. Capacitors. ORDENA TRUDOVOGO KRASNOGO ZNAMENI ZAVOD ELEKTROIZMERITELNYKH PRIBOROV. 29 July, 1969, No. 37888/69. Heading HIM. A push-button key unit of a data input device comprises push-rod 2 with pull-back spring 3 and actuation of the push-button moves isolated capacitor electrode 4 towards or away from fixed electrodes 5 mounted on insulating packing 6 on frame 1. Electrode 4 is attached to push-rod 2 through insulated packing 7 acting as a shock absorber, and is coated with dielectric layer 8. One fixed electrode is connected to an external voltage source, the other is coupled with the input of an amplifier of the device. To increase the maximum to minimum capacitor ratio, the push-rod may carry a second oppositely facing isolated electrode, and the assembly moves between two pairs of fixed electrodes (Fig. 2, not shown), and the two moving electrodes may be electrically interconnected, or replaced by a single plate, to increase the selection ratio. A keyboard may comprise a number of the units, with the fixed electrodes mounted on a common support or supports.
GB3788869A 1969-07-29 1969-07-29 Improvements in and relating to electrical switches Expired GB1223099A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3788869A GB1223099A (en) 1969-07-29 1969-07-29 Improvements in and relating to electrical switches
DE19691940554 DE1940554A1 (en) 1969-07-29 1969-08-08 Key element for input device
FR6927513A FR2055758A1 (en) 1969-07-29 1969-08-11
BE737765D BE737765A (en) 1969-07-29 1969-08-21

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB3788869A GB1223099A (en) 1969-07-29 1969-07-29 Improvements in and relating to electrical switches
DE19691940554 DE1940554A1 (en) 1969-07-29 1969-08-08 Key element for input device
FR6927513A FR2055758A1 (en) 1969-07-29 1969-08-11
BE737765 1969-08-21

Publications (1)

Publication Number Publication Date
GB1223099A true GB1223099A (en) 1971-02-24

Family

ID=27424943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3788869A Expired GB1223099A (en) 1969-07-29 1969-07-29 Improvements in and relating to electrical switches

Country Status (4)

Country Link
BE (1) BE737765A (en)
DE (1) DE1940554A1 (en)
FR (1) FR2055758A1 (en)
GB (1) GB1223099A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040969A2 (en) * 1980-05-24 1981-12-02 Kureha Kagaku Kogyo Kabushiki Kaisha Laminated electric element
US11764782B2 (en) 2017-06-21 2023-09-19 Bcs Automotive Interface Solutions Gmbh Motor vehicle control device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090229A (en) * 1976-09-30 1978-05-16 Becton, Dickinson Electronics Company Capacitive key for keyboard
JPS5851646B2 (en) * 1980-04-16 1983-11-17 アルプス電気株式会社 Variable capacitance push button switch
FR2503493A1 (en) * 1981-04-03 1982-10-08 Commissariat Energie Atomique Static capacitative keyboard of rugged construction - has sandwiched behind transparent plate backed by double sided printed circuit board and foam in rigid case
FR2522918A1 (en) * 1982-03-03 1983-09-09 Lewiner Jacques IMPROVEMENTS ON CAPACITIVE KEYBOARDS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040969A2 (en) * 1980-05-24 1981-12-02 Kureha Kagaku Kogyo Kabushiki Kaisha Laminated electric element
EP0040969A3 (en) * 1980-05-24 1981-12-09 Kureha Kagaku Kogyo Kabushiki Kaisha Laminated electric element
US11764782B2 (en) 2017-06-21 2023-09-19 Bcs Automotive Interface Solutions Gmbh Motor vehicle control device

Also Published As

Publication number Publication date
DE1940554A1 (en) 1971-02-18
FR2055758A1 (en) 1971-04-30
BE737765A (en) 1970-02-23

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