TREA

with tubes only

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Industry

  • CPC
  • H03F3/52
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Parent Industries

HELECTRICITY H03Electronic circuits H03FAMPLIFIERS H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Current Industry

H03F3/52with tubes only
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Systems and methods for adaptive noise cancellation by adaptively s...
    • Patent number 9,666,176
    • Issue date May 30, 2017
    • Cirrus Logic, Inc.
    • Ali Abdollahzadeh Milani
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Systems and methods for detection of load impedance of a transducer...
    • Patent number 9,578,417
    • Issue date Feb 21, 2017
    • Cirrus Logic, Inc.
    • Anand Ilango
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Systems and methods for detection of load impedance of a transducer...
    • Patent number 9,479,868
    • Issue date Oct 25, 2016
    • Cirrus Logic, Inc.
    • Anand Ilango
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Systems and methods for detection of load impedance of a transducer...
    • Patent number 9,479,869
    • Issue date Oct 25, 2016
    • Cirrus Logic, Inc.
    • Anand Ilango
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Circuit to extend frequency response of accelerometer
    • Patent number 9,435,824
    • Issue date Sep 6, 2016
    • Garimella R Sarma
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Output circuit of vacuum-tube amplifier
    • Patent number 7,583,140
    • Issue date Sep 1, 2009
    • AVERD Labs Co., Ltd.
    • Soung Whan Chung
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Single-ended screen-regulated cathode-follower output stage for hig...
    • Patent number 7,511,571
    • Issue date Mar 31, 2009
    • Scott Frankland
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Single stage balanced voltage amplifier
    • Patent number 7,482,867
    • Issue date Jan 27, 2009
    • Chi Ming John Lam
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Output circuit of vacuum-tube amplifier
    • Patent number 7,355,475
    • Issue date Apr 8, 2008
    • AVERD Labs Co., Ltd.
    • Soung Whan Chung
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Linear high-voltage drive stage and cathode-follower high-fidelity...
    • Patent number 6,265,938
    • Issue date Jul 24, 2001
    • Martin Reiffin
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3393271
    • Patent number 3,393,271
    • Issue date Jul 16, 1968
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3317852
    • Patent number 3,317,852
    • Issue date May 2, 1967
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3201711
    • Patent number 3,201,711
    • Issue date Aug 17, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3200341
    • Patent number 3,200,341
    • Issue date Aug 10, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3192479
    • Patent number 3,192,479
    • Issue date Jun 29, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3155918
    • Patent number 3,155,918
    • Issue date Nov 3, 1964
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3123779
    • Patent number 3,123,779
    • Issue date Mar 3, 1964
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    3123777
    • Patent number 3,123,777
    • Issue date Mar 3, 1964
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2988705
    • Patent number 2,988,705
    • Issue date Jun 13, 1961
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2987677
    • Patent number 2,987,677
    • Issue date Jun 6, 1961
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2980862
    • Patent number 2,980,862
    • Issue date Apr 18, 1961
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2965852
    • Patent number 2,965,852
    • Issue date Dec 20, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2965855
    • Patent number 2,965,855
    • Issue date Dec 20, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2965853
    • Patent number 2,965,853
    • Issue date Dec 20, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2960662
    • Patent number 2,960,662
    • Issue date Nov 15, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2955261
    • Patent number 2,955,261
    • Issue date Oct 4, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2950443
    • Patent number 2,950,443
    • Issue date Aug 23, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2934713
    • Patent number 2,934,713
    • Issue date Apr 26, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2934711
    • Patent number 2,934,711
    • Issue date Apr 26, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2920282
    • Patent number 2,920,282
    • Issue date Jan 5, 1960
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents