Patents Assigned to Powerprecise Solutions, Inc.
  • Method and apparatus for time measurement
    Patent number: 7315489
    Abstract: A method is provided for accurate time measurement. Time is first measured with a first oscillator. At designated intervals, a second oscillator is activated for a period of time based on the first oscillator. The second oscillator is more accurate than the first oscillator. Pulses are then counted from the second oscillator during the period of time. The second oscillator is then turned off after the period of time. The count from the second oscillator is used as a new measurement of the period of time of the first oscillator.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: January 1, 2008
    Assignee: Powerprecise Solutions, Inc.
    Inventor: John Houldsworth
  • Method and apparatus for detecting impedance
    Patent number: 7259572
    Abstract: A method and apparatus for detecting an impedance across a pair of terminals. A sensing circuit is AC coupled to the terminals which produces an output related to a time constant associated with the impedance.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: August 21, 2007
    Assignee: PowerPrecise Solutions, Inc.
    Inventors: John Houldsworth, Nigel A. Jones
  • One time operating state detecting method and apparatus
    Patent number: 7248053
    Abstract: A method and apparatus for detecting a change in an electrical property between contacts. A one-time operating state detection device includes a member coupling a pair of contacts and a detector for detecting a change in the coupling between the pair of contacts when the member is removed.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: July 24, 2007
    Assignee: Powerprecise Solutions, Inc.
    Inventor: John Houldsworth