Patents by Inventor Brad D. Marshall

Brad D. Marshall 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).

  • Battery backup system with sleep mode
    Patent number: 8030897
    Abstract: The present invention concerns an apparatus comprising a charger circuit and a control circuit. The charger circuit may be configured to generate a first power down control signal and a second power down control signal in response to (i) a first charge signal, (ii) a second charge signal, (iii) a supply voltage, and (iv) a host control signal. The control circuit may be configured to generate the first charge signal and the second charge signal in response to a first battery signal and a second battery signal. The control circuit may enter a power down state in response to the host control signal initiating the power down state.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: October 4, 2011
    Assignee: LSI Corporation
    Inventors: Lakshmana M. Anupindi, Brad D. Marshall, R. Brian Skinner
  • BATTERY BACKUP SYSTEM WITH SLEEP MODE
    Publication number: 20110043043
    Abstract: The present invention concerns an apparatus comprising a charger circuit and a control circuit. The charger circuit may be configured to generate a first power down control signal and a second power down control signal in response to (i) a first charge signal, (ii) a second charge signal, (iii) a supply voltage, and (iv) a host control signal. The control circuit may be configured to generate the first charge signal and the second charge signal in response to a first battery signal and a second battery signal. The control circuit may enter a power down state in response to the host control signal initiating the power down state.
    Type: Application
    Filed: November 2, 2010
    Publication date: February 24, 2011
    Inventors: Lakshmana M. Anupindi, Brad D. Marshall, R. Brian Skinner