generated by local multipliers, dividers, modulators

Industry

  • CPC
  • H04B17/405
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for monitoring a digital transmission line

    • Patent number 4,843,382
    • Issue date Jun 27, 1989
    • Kokusai Denshin Denwa Co., Ltd.
    • Hidenori Oda
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Optical repeater monitoring system

    • Patent number 4,710,976
    • Issue date Dec 1, 1987
    • Kokusai Denshin Denwa Co., Ltd.
    • Hiroharu Wakabayashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Apparatus and method for monitoring a communications system

    • Patent number 4,207,431
    • Issue date Jun 10, 1980
    • Broadband Technologies, Inc.
    • David S. McVoy
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Device for measuring a signal having a very high noise level

    • Patent number 3,950,699
    • Issue date Apr 13, 1976
    • Compagnie Industrielle des Telecommunications Cit-Alcatel
    • Michel Brouant
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3637955

    • Patent number 3,637,955
    • Issue date Jan 25, 1972
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3482059

    • Patent number 3,482,059
    • Issue date Dec 2, 1969
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3189694

    • Patent number 3,189,694
    • Issue date Jun 15, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3182138

    • Patent number 3,182,138
    • Issue date May 4, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3172965

    • Patent number 3,172,965
    • Issue date Mar 9, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3059068

    • Patent number 3,059,068
    • Issue date Oct 16, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3049596

    • Patent number 3,049,596
    • Issue date Aug 14, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2843668

    • Patent number 2,843,668
    • Issue date Jul 15, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2611041

    • Patent number 2,611,041
    • Issue date Sep 16, 1952
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2570912

    • Patent number 2,570,912
    • Issue date Oct 9, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2550782

    • Patent number 2,550,782
    • Issue date May 1, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents