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using varactors

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Industry

  • CPC
  • H03J7/24
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Parent Industries

HELECTRICITY H03Electronic circuits H03JTUNING RESONANT CIRCUITS SELECTING RESONANT CIRCUITS H03J7/00Automatic frequency control Automatic scanning over a band of frequencies

Current Industry

H03J7/24using varactors
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Reverse electronic tuning circuit for FM radio frequency-lock-loop...
    • Patent number 7,167,697
    • Issue date Jan 23, 2007
    • OneWorld Enterprises Limited
    • Man Shan Hui
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Electronic tuning type radio receivers
    • Patent number 4,495,650
    • Issue date Jan 22, 1985
    • Sharp Kabushiki Kaisha
    • Hideo Konishi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Channel selecting control system for television tuner including unu...
    • Patent number 3,961,267
    • Issue date Jun 1, 1976
    • Warwick Electronics Inc.
    • William R. Weissmueller
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3916093
    • Patent number 3,916,093
    • Issue date Oct 28, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3902121
    • Patent number 3,902,121
    • Issue date Aug 26, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3893049
    • Patent number 3,893,049
    • Issue date Jul 1, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3864636
    • Patent number 3,864,636
    • Issue date Feb 4, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3789262
    • Patent number 3,789,262
    • Issue date Jan 29, 1974
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3755743
    • Patent number 3,755,743
    • Issue date Aug 28, 1973
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3750030
    • Patent number 3,750,030
    • Issue date Jul 31, 1973
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3737565
    • Patent number 3,737,565
    • Issue date Jun 5, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3735268
    • Patent number 3,735,268
    • Issue date May 22, 1973
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3715495
    • Patent number 3,715,495
    • Issue date Feb 6, 1973
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3706041
    • Patent number 3,706,041
    • Issue date Dec 12, 1972
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3683270
    • Patent number 3,683,270
    • Issue date Aug 8, 1972
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    3631349
    • Patent number 3,631,349
    • Issue date Dec 28, 1971
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3591708
    • Patent number 3,591,708
    • Issue date Jul 6, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3568065
    • Patent number 3,568,065
    • Issue date Mar 2, 1971
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3544903
    • Patent number 3,544,903
    • Issue date Dec 1, 1970
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3467870
    • Patent number 3,467,870
    • Issue date Sep 16, 1969
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3384826
    • Patent number 3,384,826
    • Issue date May 21, 1968
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3201696
    • Patent number 3,201,696
    • Issue date Aug 17, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3189829
    • Patent number 3,189,829
    • Issue date Jun 15, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2977467
    • Patent number 2,977,467
    • Issue date Mar 28, 1961
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents