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Discontinuous tuning using an electrical variable impedance element

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  • CPC
  • H03J5/0209
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Parent Industries

HELECTRICITY H03Electronic circuits H03JTUNING RESONANT CIRCUITS SELECTING RESONANT CIRCUITS H03J5/00Discontinuous tuning Selecting predetermined frequencies Selecting frequency bands with or without continuous tuning in one or more of the bands

Current Industry

H03J5/0209Discontinuous tuning using an electrical variable impedance element
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Mixed-technology combination of programmable elements
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    • Issue date Jan 16, 2018
    • Wispry, Inc.
    • Arthur S. Morris
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Grant

    On flex circuit desense filter for wireless communications
    • Patent number 9,780,755
    • Issue date Oct 3, 2017
    • Apple Inc.
    • Kasra M. Omid-Zohoor
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Mixed-technology combination of programmable elements
    • Patent number 9,413,337
    • Issue date Aug 9, 2016
    • Wispry, Inc.
    • Arthur S. Morris
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    82 Detent manual varactor tuning system
    • Patent number 4,081,771
    • Issue date Mar 28, 1978
    • Zenith Radio Corporation
    • Melvin Carlyle Hendrickson
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Signal overload protection circuit for varactor tuner
    • Patent number 3,983,490
    • Issue date Sep 28, 1976
    • Zenith Radio Corporation
    • John Y. Ma
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Circuit arrangement for the digital control of operating functions...
    • Patent number 3,979,744
    • Issue date Sep 7, 1976
    • International Standard Electric Corporation
    • Wolfgang Schroder
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Abrupt junction varactor diode television tuner
    • Patent number 3,962,643
    • Issue date Jun 8, 1976
    • Zenith Radio Corporation
    • John Y. Ma
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3906373
    • Patent number 3,906,373
    • Issue date Sep 16, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3898519
    • Patent number 3,898,519
    • Issue date Aug 5, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3886457
    • Patent number 3,886,457
    • Issue date May 27, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3878466
    • Patent number 3,878,466
    • Issue date Apr 15, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3870979
    • Patent number 3,870,979
    • Issue date Mar 11, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3868609
    • Patent number 3,868,609
    • Issue date Feb 25, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3854123
    • Patent number 3,854,123
    • Issue date Dec 10, 1974
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3845393
    • Patent number 3,845,393
    • Issue date Oct 29, 1974
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3845428
    • Patent number 3,845,428
    • Issue date Oct 29, 1974
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3810022
    • Patent number 3,810,022
    • Issue date May 7, 1974
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3803495
    • Patent number 3,803,495
    • Issue date Apr 9, 1974
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3769590
    • Patent number 3,769,590
    • Issue date Oct 30, 1973
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3758864
    • Patent number 3,758,864
    • Issue date Sep 11, 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

    3750028
    • Patent number 3,750,028
    • Issue date Jul 31, 1973
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3740679
    • Patent number 3,740,679
    • Issue date Jun 19, 1973
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3737818
    • Patent number 3,737,818
    • Issue date Jun 5, 1973
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    3671869
    • Patent number 3,671,869
    • Issue date Jun 20, 1972
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    3573684
    • Patent number 3,573,684
    • Issue date Apr 6, 1971
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    3568112
    • Patent number 3,568,112
    • Issue date Mar 2, 1971
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    3509467
    • Patent number 3,509,467
    • Issue date Apr 28, 1970
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3509500
    • Patent number 3,509,500
    • Issue date Apr 28, 1970
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3264566
    • Patent number 3,264,566
    • Issue date Aug 2, 1966
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents