TREA

DBX, INC.

Follow

Organization

  • NEWTON, MA, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Analog-to-digital converter
    • Patent number 4,588,979
    • Issue date May 13, 1986
    • DBX, Inc.
    • Robert W. Adams
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Adaptive signal weighting system
    • Patent number 4,539,526
    • Issue date Sep 3, 1985
    • DBX, Inc.
    • Mark F. Davis
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Loudspeaker system
    • Patent number 4,503,553
    • Issue date Mar 5, 1985
    • DBX, Inc.
    • Mark F. Davis
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Stereophonic balance control system
    • Patent number 4,503,554
    • Issue date Mar 5, 1985
    • DBX, Inc.
    • Mark F. Davis
    • 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

    All NPN variably controlled amplifier
    • Patent number 4,471,324
    • Issue date Sep 11, 1984
    • DBX, Inc.
    • David R. Welland
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Signal expander
    • Patent number 4,467,287
    • Issue date Aug 21, 1984
    • DBX, Inc.
    • Joseph R. Aylward
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Multiplier circuit
    • Patent number 4,454,433
    • Issue date Jun 12, 1984
    • DBX, Inc.
    • David R. Welland
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Square law charger
    • Patent number 4,445,053
    • Issue date Apr 24, 1984
    • DBX, Inc.
    • C. Rene Jaeger
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Compensation for VCA OP amp errors
    • Patent number 4,434,380
    • Issue date Feb 28, 1984
    • DBX, Inc.
    • David R. Welland
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Networks for the log domain
    • Patent number 4,430,626
    • Issue date Feb 7, 1984
    • DBX, Inc.
    • Robert W. Adams
    • G06 - COMPUTING CALCULATING COUNTING
  • 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

    Operational rectifier and bias generator
    • Patent number 4,409,500
    • Issue date Oct 11, 1983
    • DBX, Inc.
    • David R. Welland
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • 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

    System for and method of testing transistors
    • Patent number 4,368,425
    • Issue date Jan 11, 1983
    • DBX, Inc.
    • Robert W. Adams
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gain control systems
    • Patent number 4,331,931
    • Issue date May 25, 1982
    • DBX, Inc.
    • Robert W. Adams
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Bias generator
    • Patent number 4,329,598
    • Issue date May 11, 1982
    • DBX, Inc.
    • David R. Welland
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Multiplier circuit
    • Patent number 4,316,107
    • Issue date Feb 16, 1982
    • DBX, Inc.
    • Daniel B. Talbot
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Equalizing system
    • Patent number 4,316,060
    • Issue date Feb 16, 1982
    • DBX, Inc.
    • Robert W. Adams
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Signal correction for electrical gain control systems
    • Patent number 4,234,804
    • Issue date Nov 18, 1980
    • DBX, Inc.
    • Gary Bergstrom
    • G06 - COMPUTING CALCULATING COUNTING
  • 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

    Signal amplitude compression system
    • Patent number 4,182,993
    • Issue date Jan 8, 1980
    • DBX Inc.
    • Leslie B. Tyler
    • 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

    Signal enhancement system
    • Patent number 4,177,356
    • Issue date Dec 4, 1979
    • DBX Inc.
    • C. Rene Jaeger
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • 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

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    73475854 - SOUNDFIELD
    • Serial number 73475854
    • Registration number 1393007
    • Filing date Apr 17, 1984
    • DBX, Inc.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    73466634 - DBX
    • Serial number 73466634
    • Registration number 1320432
    • Filing date Feb 21, 1984
    • DBX, Inc.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    73440081 - SOUNDFIELD IMAGING
    • Serial number 73440081
    • Registration number 1393002
    • Filing date Aug 19, 1983
    • DBX, INCORPORATED
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    73298579 - DBXCASSETTE
    • Serial number 73298579
    • Registration number 1229377
    • Filing date Feb 25, 1981
    • DBX, Inc.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    73250680 - MAKING GOOD SOUND BETTER
    • Serial number 73250680
    • Registration number 1238057
    • Filing date Feb 19, 1980
    • DBX, Inc.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    73226362 - DBX
    • Serial number 73226362
    • Registration number 1148399
    • Filing date Aug 6, 1979
    • DBX Inc.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    73212679 - OVEREASY
    • Serial number 73212679
    • Registration number 1148795
    • Filing date Apr 23, 1979
    • DBX, Inc.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    73160017 - BOOMBOX
    • Serial number 73160017
    • Registration number 1101335
    • Filing date Feb 27, 1978
    • DBX, INC.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    73051340 - DBX II
    • Serial number 73051340
    • Registration number 1047159
    • Filing date May 5, 1975
    • DBX INC.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    72462736 - DBX
    • Serial number 72462736
    • Registration number 1032613
    • Filing date Jul 12, 1973
    • DBX INC.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments