GB1488944A - Circuit for eliminating contact bounce - Google Patents

Circuit for eliminating contact bounce

Info

Publication number
GB1488944A
GB1488944A GB1929/75A GB192975A GB1488944A GB 1488944 A GB1488944 A GB 1488944A GB 1929/75 A GB1929/75 A GB 1929/75A GB 192975 A GB192975 A GB 192975A GB 1488944 A GB1488944 A GB 1488944A
Authority
GB
United Kingdom
Prior art keywords
input
output
contact bounce
state
mode
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
GB1929/75A
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of GB1488944A publication Critical patent/GB1488944A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/125—Discriminating pulses
    • H03K5/1252—Suppression or limitation of noise or interference
    • H03K5/1254—Suppression or limitation of noise or interference specially adapted for pulses generated by closure of switches, i.e. anti-bouncing devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/01—Details
    • H03K3/013—Modifications of generator to prevent operation by noise or interference

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)
  • Electronic Switches (AREA)
  • Logic Circuits (AREA)
  • Pulse Circuits (AREA)
GB1929/75A 1974-02-04 1975-01-16 Circuit for eliminating contact bounce Expired GB1488944A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43950374A 1974-02-04 1974-02-04
US05/620,676 US4028560A (en) 1974-02-04 1975-10-08 Contact bounce transient pulse circuit eliminator

Publications (1)

Publication Number Publication Date
GB1488944A true GB1488944A (en) 1977-10-19

Family

ID=27032068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1929/75A Expired GB1488944A (en) 1974-02-04 1975-01-16 Circuit for eliminating contact bounce

Country Status (5)

Country Link
US (1) US4028560A (en, 2012)
JP (1) JPS5645460B2 (en, 2012)
DE (1) DE2501073A1 (en, 2012)
FR (1) FR2260232B1 (en, 2012)
GB (1) GB1488944A (en, 2012)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645491A1 (de) * 1976-10-08 1978-05-11 Vdo Schindling Schaltungsanordnung zum steuern eines vorwaerts-rueckwaerts-zaehlers
US4375601A (en) * 1980-07-07 1983-03-01 Beckman Instruments, Inc. Signal stability recognition
GB2083669B (en) * 1980-09-05 1985-01-03 Casio Computer Co Ltd Key data entry system
US4379973A (en) * 1981-05-20 1983-04-12 C & K Components, Inc. Universal logic switch
JPS5826420A (ja) * 1981-08-10 1983-02-16 日本アビオニクス株式会社 接点動作検出回路
US4523104A (en) * 1983-02-22 1985-06-11 The United States Of America As Represented By The Secretary Of The Air Force Switch debounce circuit
US4549094A (en) * 1983-10-07 1985-10-22 United Technologies Automotive, Inc. Debounce circuit providing synchronously clocked digital signals
US4713564A (en) * 1985-12-19 1987-12-15 American Telephone And Telegraph Company, At&T Information Systems Bounce-nullifying switch unit
US4926072A (en) * 1987-09-18 1990-05-15 Aisin Seiki Kabushikikaisha Noise elimination circuit
US4853685A (en) * 1988-04-29 1989-08-01 Baker Industries, Inc. Switch monitoring arrangement with remote adjustment capability having debounce circuitry for accurate state determination
DE3839422A1 (de) * 1988-11-18 1990-05-23 Licentia Gmbh Einrichtung zur unterdrueckung von stoernadeln innerhalb von datenbits eines demodulierten fsk-signals
DE4006694A1 (de) * 1990-03-01 1991-09-05 Licentia Gmbh Verfahren und anordnung zur digitalen ein- und ausschaltverzoegerung von rechtecksignalen
US5212473A (en) * 1991-02-21 1993-05-18 Typeright Keyboard Corp. Membrane keyboard and method of using same
EP0572482A1 (en) * 1991-02-21 1993-12-08 Typeright Keyboard Corp. Membrane keyboard and method of using same
DE4140920C1 (en) * 1991-12-12 1993-05-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De Level changing circuitry for flanks of rectangular or trapezoidal signals - has threshold value discriminator with output signal separated into two channels, each having a gate circuit assigned to SR-flip=flop
US5651443A (en) * 1996-01-11 1997-07-29 Eaton Corporation Electrical noise suppression in coin acceptor mechanism
US8872676B2 (en) 2011-08-01 2014-10-28 Toyota Motor Engineering & Manufacturing North America, Inc. Systems and methods for switching
US10693444B1 (en) * 2018-11-30 2020-06-23 Texas Instruments Incorporated Mixed signal circuit spur cancellation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555306A (en) * 1966-03-30 1971-01-12 Mohawk Data Sciences Corp Keyboard sprocket circuit
US3471789A (en) * 1967-02-15 1969-10-07 Burroughs Corp Single pulse switch logic circuit
US3624518A (en) * 1970-03-24 1971-11-30 Us Navy Single pulse switch circuit
CH533926A (de) * 1971-01-22 1973-02-15 Dixi Sa Entstörschaltung für logische Signale und Verfahren zum Betriebe derselben
JPS4849919U (en, 2012) * 1971-10-11 1973-06-30
US3824583A (en) * 1971-11-05 1974-07-16 Gen Signal Corp Apparatus for digitizing noisy time duration signals
US3725680A (en) * 1972-01-03 1973-04-03 Gen Signal Corp Apparatus for digitizing noisy time duration signals which prevents adverse effects of contact bounce
US3795823A (en) * 1972-11-09 1974-03-05 Rca Corp Signal detection in noisy transmission path

Also Published As

Publication number Publication date
US4028560A (en) 1977-06-07
JPS5645460B2 (en, 2012) 1981-10-26
FR2260232B1 (en, 2012) 1977-11-25
JPS50110555A (en, 2012) 1975-08-30
DE2501073A1 (de) 1975-08-14
FR2260232A1 (en, 2012) 1975-08-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee