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in negative-feedback path of line amplifier

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  • CPC
  • H04B3/12
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HELECTRICITY H04Electric communication H04BTRANSMISSION H04B3/00Line transmission systems

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H04B3/12in negative-feedback path of line amplifier
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Patents Grantslast 30 patents

  • Information Patent Grant

    Receiving device and receiving method
    • Patent number 8,638,843
    • Issue date Jan 28, 2014
    • Fujitsu Limited
    • Hisakatsu Yamaguchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Line interface with analog echo cancellation
    • Patent number 7,212,627
    • Issue date May 1, 2007
    • Analog Devices, Inc.
    • Ojas M. Choksi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Broad band amplifier having negative feedback and a controllable am...
    • Patent number 4,023,112
    • Issue date May 10, 1977
    • Telefonaktiebolaget L M Ericsson
    • Bodo Kurt Adolf Duncker
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3872394
    • Patent number 3,872,394
    • Issue date Mar 18, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3804995
    • Patent number 3,804,995
    • Issue date Apr 16, 1974
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3774118
    • Patent number 3,774,118
    • Issue date Nov 20, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3737774
    • Patent number 3,737,774
    • Issue date Jun 5, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3131361
    • Patent number 3,131,361
    • Issue date Apr 28, 1964
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3105942
    • Patent number 3,105,942
    • Issue date Oct 1, 1963
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2840648
    • Patent number 2,840,648
    • Issue date Jun 24, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2768353
    • Patent number 2,768,353
    • Issue date Oct 23, 1956
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2762568
    • Patent number 2,762,568
    • Issue date Sep 11, 1956
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2758281
    • Patent number 2,758,281
    • Issue date Aug 7, 1956
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2742568
    • Patent number 2,742,568
    • Issue date Apr 17, 1956
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2683777
    • Patent number 2,683,777
    • Issue date Jul 13, 1954
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2340813
    • Patent number 2,340,813
    • Issue date Feb 1, 1944
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2331530
    • Patent number 2,331,530
    • Issue date Oct 12, 1943
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2326871
    • Patent number 2,326,871
    • Issue date Aug 17, 1943
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2298192
    • Patent number 2,298,192
    • Issue date Oct 6, 1942
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2281312
    • Patent number 2,281,312
    • Issue date Apr 28, 1942
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2269408
    • Patent number 2,269,408
    • Issue date Jan 6, 1942
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2231542
    • Patent number 2,231,542
    • Issue date Feb 11, 1941
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2209955
    • Patent number 2,209,955
    • Issue date Aug 6, 1940
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2208617
    • Patent number 2,208,617
    • Issue date Jul 23, 1940
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2188671
    • Patent number 2,188,671
    • Issue date Jan 30, 1940
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2179915
    • Patent number 2,179,915
    • Issue date Nov 14, 1939
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2154062
    • Patent number 2,154,062
    • Issue date Apr 11, 1939
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2075956
    • Patent number 2,075,956
    • Issue date Apr 6, 1937
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents