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David E. Blackmer

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  • Wilton, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    System and method for reducing non linear electrical distortion in...
    • Patent number 6,526,149
    • Issue date Feb 25, 2003
    • Earthworks, Inc.
    • Aleksey S. Khenkin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Microphone apparatus
    • Patent number 6,091,829
    • Issue date Jul 18, 2000
    • Earthworks, Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Stereo generator
    • Patent number 4,706,287
    • Issue date Nov 10, 1987
    • Kintek, Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound encoding system
    • Patent number 4,680,796
    • Issue date Jul 14, 1987
    • Kintek, Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Signal decoding system
    • Patent number 4,589,129
    • Issue date May 13, 1986
    • Kintek, Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Bias generator
    • Patent number 4,473,793
    • Issue date Sep 25, 1984
    • DBX, Inc.
    • David E. Blackmer
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Differential amplifier stage having bias compensating means
    • Patent number 4,425,551
    • Issue date Jan 10, 1984
    • DBX, Inc.
    • David E. Blackmer
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Audio signal processing system
    • Patent number 4,404,427
    • Issue date Sep 13, 1983
    • Kintek, Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Gain control systems
    • Patent number 4,403,199
    • Issue date Sep 6, 1983
    • DBX, Inc.
    • David E. Blackmer
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Compander system
    • Patent number 4,377,792
    • Issue date Mar 22, 1983
    • DBX, Inc.
    • David E. Blackmer
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Signal expander
    • Patent number 4,220,929
    • Issue date Sep 2, 1980
    • DBX, Inc.
    • Daniel B. Talbot
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Detection and monitoring device
    • Patent number 4,182,930
    • Issue date Jan 8, 1980
    • DBX Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Adaptive signal weighting system
    • Patent number 4,136,314
    • Issue date Jan 23, 1979
    • DBX, Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Motion picture sound system
    • Patent number 4,124,784
    • Issue date Nov 7, 1978
    • DBX, Inc.
    • Keith O. Johnson
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Signal compander system
    • Patent number 4,112,254
    • Issue date Sep 5, 1978
    • DBX, Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Adaptive filter
    • Patent number 4,101,849
    • Issue date Jul 18, 1978
    • DBX, Inc.
    • David E. Blackmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Operational rectifier
    • Patent number 4,097,767
    • Issue date Jun 27, 1978
    • DBX, Incorporated
    • David E. Blackmer
    • G06 - COMPUTING CALCULATING COUNTING