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Pulse-correcting arrangements

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HELECTRICITY H04Electric communication H04QSELECTING H04Q1/00Details of selecting apparatus or arrangements for establishing connections among stations for the purpose of transferring information via these connections

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H04Q1/36Pulse-correcting arrangements
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Patents Grantslast 30 patents

  • Information Patent Grant

    Terminal repeater having a function for repeating DC loop signal
    • Patent number 5,086,462
    • Issue date Feb 4, 1992
    • Kabushiki Kaisha Toshiba
    • Tosho Oka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Method for determining telephone dial pulse parameters independentl...
    • Patent number 4,839,920
    • Issue date Jun 13, 1989
    • Siemens Aktiengesellschaft
    • Gabriele Held-Elbert
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Constant-percent break pulse corrector
    • Patent number 4,590,432
    • Issue date May 20, 1986
    • AT&T Bell Laboratories
    • Eugenio S. di Borgoricco
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electronic telephone relay
    • Patent number 4,555,593
    • Issue date Nov 26, 1985
    • Microcommunications, Inc.
    • Orrin B. O'Dea
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Apparatus for isolating the voice frequency path from the floating...
    • Patent number 4,552,994
    • Issue date Nov 12, 1985
    • GTE Lenkurt Incorporated Communication Systems
    • Constantine V. Skidanenko
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Dial pulse detector
    • Patent number 4,326,105
    • Issue date Apr 20, 1982
    • Mitel Corporation
    • Brian J. N. Vaughan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Dial pulse restorer
    • Patent number 4,319,091
    • Issue date Mar 9, 1982
    • Dictaphone Corporation
    • Kalju Meri
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Circuit for eliminating spurious pulses in a dial pulse stream
    • Patent number 4,278,842
    • Issue date Jul 14, 1981
    • Bell Telephone Laboratories, Incorporated
    • George H. Simmons
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Pulse rejection and duration correction circuit
    • Patent number 4,266,099
    • Issue date May 5, 1981
    • Northern Telecom Limited
    • Inanc Kayalioglu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Dial pulse sensor and repeater circuit
    • Patent number 4,230,912
    • Issue date Oct 28, 1980
    • GTE Automatic Electric Laboratories Incorporated
    • David Q. Lee
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Digital constant-percent break pulse corrector
    • Patent number 4,227,054
    • Issue date Oct 7, 1980
    • Bell Telephone Laboratories, Incorporated
    • John L. Gilmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Minimum break/make pulse corrector
    • Patent number 4,223,184
    • Issue date Sep 16, 1980
    • Bell Telephone Laboratories, Incorporated
    • John L. Gilmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Constant percent break type dial pulse corrector
    • Patent number 4,207,436
    • Issue date Jun 10, 1980
    • GTE Automatic Electric Laboratories Incorporated
    • Nam Tosuntikool
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Pulse circuit for two wire electronic PABX stations
    • Patent number 4,198,547
    • Issue date Apr 15, 1980
    • Tele/Resources
    • Angelo Ferraro
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Ringing signal detector
    • Patent number 4,184,053
    • Issue date Jan 15, 1980
    • Iwasaki Tsushinki Kabushiki Kaisha
    • Norio Saneyoshi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Dial impulse relay circuit
    • Patent number 4,087,644
    • Issue date May 2, 1978
    • Nippon Tsu Shin Kogyo K.K.
    • Fumikazu Hamatani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Digital method and apparatus for dynamically generating an output p...
    • Patent number 4,075,569
    • Issue date Feb 21, 1978
    • Rockwell International Corporation
    • Howard O. Wright
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Method and apparatus for the removal of ringing phenomena from sign...
    • Patent number 4,004,238
    • Issue date Jan 18, 1977
    • Eltro GmbH Gesellschaft fur Strahlungstechnik
    • Gunter Wichmann
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Dial pulse correction circuit for telephone signaling system
    • Patent number 3,988,548
    • Issue date Oct 26, 1976
    • GTE Automatic Electric Laboratories Incorporated
    • Gary C. Waldeck
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Regeneration of signalling pulses
    • Patent number 3,985,970
    • Issue date Oct 12, 1976
    • Societe Lignes Telegraphiques et Telephoniques
    • Raymond Lerault
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Switching arrangement for receiving DC signals
    • Patent number 3,978,283
    • Issue date Aug 31, 1976
    • Siemens Aktiengesellschaft
    • Herbert Reiter
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3919486
    • Patent number 3,919,486
    • Issue date Nov 11, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3908091
    • Patent number 3,908,091
    • Issue date Sep 23, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3879583
    • Patent number 3,879,583
    • Issue date Apr 22, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3794775
    • Patent number 3,794,775
    • Issue date Feb 26, 1974
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3781482
    • Patent number 3,781,482
    • Issue date Dec 25, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3772477
    • Patent number 3,772,477
    • Issue date Nov 13, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3772474
    • Patent number 3,772,474
    • Issue date Nov 13, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3766323
    • Patent number 3,766,323
    • Issue date Oct 16, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3700821
    • Patent number 3,700,821
    • Issue date Oct 24, 1972
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents