Patents by Inventor Douglas Bruce Osborn

Douglas Bruce Osborn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6201427
    Abstract: The invention relates to circuitry for protecting n-channel load driving devices from reverse voltage conditions and for inhibiting the flow of destructive currents through such devices under reverse voltage conditions. According to one embodiment of the invention, a circuit is provided for protecting an n-channel high side load driving device from negative battery and negative transient operating conditions.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: March 13, 2001
    Assignee: Delco Electronics Corporation
    Inventors: Douglas Bruce Osborn, Douglas Joseph Huhmann, Mark Wendell Gose
  • Patent number: 5796298
    Abstract: In accordance with the teachings of the present invention, a programmable integrated transducer amplifier circuit is provided which receives differential outputs from a transducer, such as a pressure or accelerometer transducer. The programmable integrated transducer amplifier circuit includes binary adjustable circuits that are programmed in response to binary coded signals. The binary adjustable circuits generate binary weighted currents that are employed to adjust the operating characteristics of the amplifier circuit. The binary coded signals are received from a programmable memory array which includes a plurality of memory cells that store binary information. Each of the memory cells are programmed when coupled to a programming signal. Additionally, the memory array has pretest capability for testing outputs of the memory cells prior to permanently programming the respective memory cells.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: August 18, 1998
    Assignee: Delco Electronics Corporation
    Inventors: Mark Billings Kearney, Dennis Michael Koglin, Douglas Bruce Osborn
  • Patent number: 5796278
    Abstract: Circuitry for controlling load current, in accordance with the present invention, utilizes a load drive transistor configuration operable to provide a first load current path having a first fraction of load current flowing therethrough and a second load current path having a second smaller fraction of load current flowing therethrough. The circuit includes a sense resistor associated with the load drive transistor to detect various load current threshold values. In order to reduce debiasing effects of the sense resistor upon the second load current path of the load drive transistor, a compensation resistor is provided between drive inputs associated with each of the two current paths. The compensation resistor has a compensation voltage established thereacross which is operable to negate the debiasing effect of the sense resistor on the load driving device.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: August 18, 1998
    Assignee: Delco Electronics Corporaiton
    Inventors: Douglas Bruce Osborn, Mark Wendell Gose, John Mark Dikeman