using photo-electric elements

Industry

  • CPC
  • H03G1/0047
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Patents Grantslast 30 patents

  • Information Patent Grant

    Amplifier circuit

    • Patent number 11,658,629
    • Issue date May 23, 2023
    • Yokogawa Electric Corporation
    • Toshihiko Kyakuno
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Amplifier circuit

    • Patent number 11,626,849
    • Issue date Apr 11, 2023
    • Yokogawa Electric Corporation
    • Toshihiko Kyakuno
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Implementing enhanced CMOS inverter based optical transimpedance am...

    • Patent number 10,228,464
    • Issue date Mar 12, 2019
    • International Business Machines Corporation
    • Matthew B. Frank
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Implementing enhanced CMOS inverter based optical transimpedance am...

    • Patent number 9,893,681
    • Issue date Feb 13, 2018
    • International Business Machines Corporation
    • Matthew B. Frank
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Implementing enhanced CMOS inverter based optical transimpedence am...

    • Patent number 9,584,075
    • Issue date Feb 28, 2017
    • International Business Machines Corporation
    • Matthew B. Frank
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Implementing enhanced CMOS inverter based optical transimpedance am...

    • Patent number 9,571,045
    • Issue date Feb 14, 2017
    • International Business Machines Corporation
    • Matthew B. Frank
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Photoconductive semiconductor amplifier and switch

    • Patent number 9,473,080
    • Issue date Oct 18, 2016
    • Rockwell Collins, Inc.
    • David W. Cripe
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Feedback amplifier

    • Patent number 9,178,474
    • Issue date Nov 3, 2015
    • Electronics and Telecommunications Research Institute
    • Sang-Heung Lee
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Circuit for varying gain of preamplifier

    • Patent number 7,598,479
    • Issue date Oct 6, 2009
    • Mitsubishi Denki Kabushiki Kaisha
    • Masamichi Nogami
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Magnetic verification system for bill acceptor

    • Patent number 7,378,674
    • Issue date May 27, 2008
    • International Currency Technologies Corporation
    • Hung-Ta Chen
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    System and method for varying low audio frequencies inversely with...

    • Patent number 7,016,509
    • Issue date Mar 21, 2006
    • Harman International Industries, Inc.
    • Sunil Bharitkar
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Active APD gain control for an optical receiver

    • Patent number 5,929,982
    • Issue date Jul 27, 1999
    • Tektronix, Inc.
    • Duwayne R. Anderson
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Programmable controls for vacuum tube preamplifier

    • Patent number 5,208,548
    • Issue date May 4, 1993
    • Smith; Randall C.
    • Daniel A. Van Riezen
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Attenuator control arrangements

    • Patent number 4,746,876
    • Issue date May 24, 1988
    • Northern Telecom Limited
    • Antoni J. Sibiga
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Amplitude control apparatus

    • Patent number 4,468,631
    • Issue date Aug 28, 1984
    • RCA Corporation
    • Selwyn B. Goldberg
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Volume control for an audio apparatus

    • Patent number 4,434,325
    • Issue date Feb 28, 1984
    • Nakamichi Corporation
    • Kozo Kobayashi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Apparatus for controlling an operational characteristic of a contro...

    • Patent number 4,412,182
    • Issue date Oct 25, 1983
    • Harris Corporation
    • Billy G. Yochum
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Controllable electronic resistance device

    • Patent number 4,137,466
    • Issue date Jan 30, 1979
    • U.S. Philips Corporation
    • Hans R. Schemmel
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Remote audio attenuator

    • Patent number 3,983,421
    • Issue date Sep 28, 1976
    • The Raymond Lee Organization, Inc.
    • Mario G. Yogore
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3784753

    • Patent number 3,784,753
    • Issue date Jan 8, 1974
    • G08 - SIGNALLING
  • Information Patent Grant

    3699468

    • Patent number 3,699,468
    • Issue date Oct 17, 1972
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3652859

    • Patent number 3,652,859
    • Issue date Mar 28, 1972
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3610952

    • Patent number 3,610,952
    • Issue date Oct 5, 1971
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3602831

    • Patent number 3,602,831
    • Issue date Aug 31, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3596198

    • Patent number 3,596,198
    • Issue date Jul 27, 1971
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3566141

    • Patent number 3,566,141
    • Issue date Feb 23, 1971
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3562791

    • Patent number 3,562,791
    • Issue date Feb 9, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3544902

    • Patent number 3,544,902
    • Issue date Dec 1, 1970
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3537003

    • Patent number 3,537,003
    • Issue date Oct 27, 1970
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    3525926

    • Patent number 3,525,926
    • Issue date Aug 25, 1970
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    AMPLIFIER CIRCUIT

    • Publication number 20210399703
    • Publication date Dec 23, 2021
    • YOKOGAWA ELECTRIC CORPORATION
    • Toshihiko Kyakuno
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    BURST MODE TRANS-IMPEDANCE AMPLIFIER

    • Publication number 20190036498
    • Publication date Jan 31, 2019
    • Hangzhou Hongxin Microelectronics Technology Co., Ltd.
    • Hehong ZOU
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    IMPLEMENTING ENHANCED CMOS INVERTER BASED OPTICAL TRANSIMPEDANCE AM...

    • Publication number 20170126182
    • Publication date May 4, 2017
    • International Business Machines Corporation
    • Matthew B. Frank
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    FEEDBACK AMPLIFIER

    • Publication number 20140184333
    • Publication date Jul 3, 2014
    • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    • Sang-Heung LEE
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Circuit for varying gain of preamplifier

    • Publication number 20060226913
    • Publication date Oct 12, 2006
    • Mitsubishi Denki Kabushiki Kaisha
    • Masamichi Nogami
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Headphone automatic gain control system

    • Publication number 20040120534
    • Publication date Jun 24, 2004
    • William H. Mills
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Magnetic verification system for bill acceptor

    • Publication number 20030204471
    • Publication date Oct 30, 2003
    • International Currency Technologies Corporation
    • Hung-Ta Chen
    • G06 - COMPUTING CALCULATING COUNTING