TREA

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  • CPC
  • H04B17/403
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Parent Industries

HELECTRICITY H04Electric communication H04BTRANSMISSION H04B17/00Monitoring Testing

Current Industry

H04B17/403generated by local oscillators
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for providing reference frequency aiding among...
    • Patent number 7,620,403
    • Issue date Nov 17, 2009
    • Motorola, Inc.
    • Jose E. Korneluk
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Analogue telemetry system and method for fault detection in optical...
    • Patent number 5,483,233
    • Issue date Jan 9, 1996
    • Northern Telecom Limited
    • Martin J. Pettitt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Digital telemetry system and method for fault detection in optical...
    • Patent number 5,260,819
    • Issue date Nov 9, 1993
    • Northern Telecom Limited
    • Anagnostis Hadjifotiou
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Apparatus for monitoring a communications system
    • Patent number 4,733,223
    • Issue date Mar 22, 1988
    • William C. Gilbert
    • G08 - SIGNALLING
  • Information Patent Grant

    Supervision of transmission systems
    • Patent number 4,499,600
    • Issue date Feb 12, 1985
    • International Standard Electric Corporation
    • William H. Powell
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Device for remotely supervising operation of a branched data-transm...
    • Patent number 4,476,561
    • Issue date Oct 9, 1984
    • Te Ka de Felten & Guilleaume Fernmeldeanlagen GmbH
    • Dirk Baackmann
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3916120
    • Patent number 3,916,120
    • Issue date Oct 28, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3904827
    • Patent number 3,904,827
    • Issue date Sep 9, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3766337
    • Patent number 3,766,337
    • Issue date Oct 16, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3629523
    • Patent number 3,629,523
    • Issue date Dec 21, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3617657
    • Patent number 3,617,657
    • Issue date Nov 2, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3557323
    • Patent number 3,557,323
    • Issue date Jan 19, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3450847
    • Patent number 3,450,847
    • Issue date Jun 17, 1969
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3325605
    • Patent number 3,325,605
    • Issue date Jun 13, 1967
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3311714
    • Patent number 3,311,714
    • Issue date Mar 28, 1967
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3290451
    • Patent number 3,290,451
    • Issue date Dec 6, 1966
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3210671
    • Patent number 3,210,671
    • Issue date Oct 5, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3179754
    • Patent number 3,179,754
    • Issue date Apr 20, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3144605
    • Patent number 3,144,605
    • Issue date Aug 11, 1964
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3060390
    • Patent number 3,060,390
    • Issue date Oct 23, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3054865
    • Patent number 3,054,865
    • Issue date Sep 18, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3047678
    • Patent number 3,047,678
    • Issue date Jul 31, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2951128
    • Patent number 2,951,128
    • Issue date Aug 30, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2851529
    • Patent number 2,851,529
    • Issue date Sep 9, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2802898
    • Patent number 2,802,898
    • Issue date Aug 13, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2784264
    • Patent number 2,784,264
    • Issue date Mar 5, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2580097
    • Patent number 2,580,097
    • Issue date Dec 25, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2564010
    • Patent number 2,564,010
    • Issue date Aug 14, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2509365
    • Patent number 2,509,365
    • Issue date May 30, 1950
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents