GB1350785A - Switching apparatus - Google Patents

Switching apparatus

Info

Publication number
GB1350785A
GB1350785A GB2731071*A GB2731071A GB1350785A GB 1350785 A GB1350785 A GB 1350785A GB 2731071 A GB2731071 A GB 2731071A GB 1350785 A GB1350785 A GB 1350785A
Authority
GB
United Kingdom
Prior art keywords
switch
key
voltage
sense
bus
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
GB2731071*A
Other languages
English (en)
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.)
Control Devices LLC
Original Assignee
Control Devices LLC
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 Control Devices LLC filed Critical Control Devices LLC
Publication of GB1350785A publication Critical patent/GB1350785A/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
    • H03K17/975—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

  • Electronic Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
GB2731071*A 1970-04-02 1971-04-19 Switching apparatus Expired GB1350785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2508870A 1970-04-02 1970-04-02

Publications (1)

Publication Number Publication Date
GB1350785A true GB1350785A (en) 1974-04-24

Family

ID=21823974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2731071*A Expired GB1350785A (en) 1970-04-02 1971-04-19 Switching apparatus

Country Status (6)

Country Link
US (1) US3660838A (enExample)
JP (1) JPS5329052B1 (enExample)
CA (1) CA931878A (enExample)
DE (1) DE2115508A1 (enExample)
FR (1) FR2089055A5 (enExample)
GB (1) GB1350785A (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31942E (en) * 1971-03-01 1985-07-09 High speed serial scan and readout of keyboards
US3765015A (en) * 1971-09-20 1973-10-09 Data General Corp Switch monitoring circuitry
US3778769A (en) * 1972-04-28 1973-12-11 Gen Electric Solid state touch control hand set circuit
GB1555979A (en) * 1975-08-15 1979-11-14 Nippon Musical Instruments Mfg Device for detecting a key switch operation
GB1525016A (en) * 1975-09-23 1978-09-20 Sefton P Electric touch or proximity switches
US4359720A (en) * 1981-04-29 1982-11-16 Honeywell Inc. Environmentally sealed variable capacitance apparatus
JPS6192979A (ja) * 1984-10-12 1986-05-10 本田技研工業株式会社 自動二輪車の車体フレ−ム構造
FR2672133A1 (fr) * 1991-01-24 1992-07-31 Realisa Indles Cales Et Detecteur de position.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293640A (en) * 1964-05-22 1966-12-20 Chalfin Albert Electronic systems keyboard and switch matrix

Also Published As

Publication number Publication date
JPS5329052B1 (enExample) 1978-08-18
US3660838A (en) 1972-05-02
FR2089055A5 (enExample) 1972-01-07
CA931878A (en) 1973-08-14
DE2115508A1 (de) 1971-10-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees
427A Application made for restoration (sect. 27/1949)
PLE Entries relating assignments, transmissions, licences in the register of patents
728A Order made restoring the patent (sect. 28/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years