Patents by Inventor John C. Eichenseer

John C. Eichenseer 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).

  • Power source monitoring arrangement and method having low power consumption
    Patent number: 5907238
    Abstract: An electronic circuit and system (1) incorporating a battery system (30), power-discharge sensing circuitry (40) and sleep circuitry (10) all in electrical communication with each other. The sleep circuitry (10) detects the presence or absence of an external load on the battery system (30) by sensing changes in voltage across the battery's protection diode (D3). When no external load is present, the sleep circuitry (10) controls the power-discharge sensing circuitry (40) in an extremely low current mode (e.g., current is consumed by sleep circuitry (10), but no power supplied to power-discharge sensing circuitry (40)). This mode is also referred to as a sleep mode. Upon detection of a small voltage drop on the battery's protection diode (D3) caused by a power-consuming load on the battery, the sleep circuitry (10) supplies power to the power-discharge sensing circuitry (40).
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: May 25, 1999
    Assignee: TRW Inc.
    Inventors: John R. Owerko, John C. Eichenseer, Alexander N. Theodorou