Patents by Inventor Patrick P. Copley

Patrick P. Copley 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).

  • Circuits, systems, and methods for signal processors that buffer a signal dependent current
    Patent number: 6492924
    Abstract: A signal processor circuit that buffers a ground-referred, signal-dependent, current. A ground-referred node in the circuit is preferably maintained at a ground level. The ground-referred, signal-dependent, current is preferably buffered such that the ground-referred node is preferably maintained at a ground level independent of changes to the ground-referred, signal-dependent, current.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: December 10, 2002
    Assignee: Linear Technology Corporation
    Inventors: Patrick P. Copley, William C. Rempfer, James L. Brubaker
  • Programmable configuration, level and output voltage range circuits and methods for signal processors
    Publication number: 20020063646
    Abstract: A signal processor circuit that buffers a ground-referred, signal-dependent, current. A ground-referred node in the circuit is preferably maintained at a ground level. The ground-referred, signal-dependent, current is preferably buffered such that the ground-referred node is preferably maintained at a ground level independent of changes to the ground-referred, signal-dependent, current.
    Type: Application
    Filed: August 17, 2001
    Publication date: May 30, 2002
    Inventors: Patrick P. Copley, William C. Rempfer, James L. Brubaker
  • Programmable configuration, level and output voltage range circuits and methods for signal processors
    Patent number: 6310567
    Abstract: A signal processor circuit which receives an input signal and two control words and is programmable to vary the level and the output voltage range of the output signal is provided. The signal processor includes a converter circuit and a level circuit which provide the output circuit with intermediate signals based on input control signals, e.g., input digital words. The output circuit receives an additional control signal and the intermediate signals and is programmable to modify the output voltage range and level of the output signal based on the additional control signal, e.g., a digital word.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: October 30, 2001
    Assignee: Linear Technology Corporation
    Inventors: Patrick P. Copley, William C. Rempfer, James L. Brubaker