Patents by Inventor Laura L. McPheters

Laura L. McPheters 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).

  • Method and apparatus for reading and writing a multilevel signal from an optical disc oscillators
    Patent number: 7136333
    Abstract: A system and method are disclosed for reading a multilevel signal from an optical disc. The method includes reading a raw analog data signal from a disc using an optical detector and adjusting the amplitude of the raw analog data signal. A timing signal is recovered from the amplitude adjusted analog data signal and correction is made for amplitude modulation of the raw analog data signal by processing the raw analog data signal and the timing signal.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: November 14, 2006
    Assignee: LSI Logic Corporation
    Inventors: Terrence L. Wong, John L. Fan, David C. Lee, Yi Ling, Yung-Cheng Lo, Steven E. McLaughlin, Laura L. McPheters, Richard L. Martin, Judith C. Powelson, Steven R. Spielman, David K. Warland, Jonathan A. Zingman
  • Method and apparatus for reading and writing a multilevel signal from an optical disc oscillators
    Publication number: 20040156284
    Abstract: A system and method are disclosed for reading a multilevel signal from an optical disc. The method includes reading a raw analog data signal from a disc using an optical detector and adjusting the amplitude of the raw analog data signal. A timing signal is recovered from the amplitude adjusted analog data signal and correction is made for amplitude modulation of the raw analog data signal by processing the raw analog data signal and the timing signal.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 12, 2004
    Inventors: Terrence L. Wong, John L. Fan, David C. Lee, Yi Ling, Yung-Cheng Lo, Steven E. McLaughlin, Laura L. McPheters, Richard L. Martin, Judith C. Powelson, Steven R. Spielman, David K. Warland, Jonathan A. Zingman
  • Method and apparatus for reading and writing a multilevel signal from an optical disc
    Patent number: 6657933
    Abstract: A system and method are disclosed for reading a multilevel signal from an optical disc. The method includes reading a raw analog data signal from a disc using an optical detector and adjusting the amplitude of the raw analog data signal. A timing signal is recovered from the amplitude adjusted analog data signal and correction is made for amplitude modulation of the raw analog data signal by processing the raw analog data signal and the timing signal.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: December 2, 2003
    Assignee: Calimetrics, Inc.
    Inventors: Terrence L. Wong, John L. Fan, David C. Lee, Yi Ling, Yung-Cheng Lo, Steven W. McLaughlin, Laura L. McPheters, Richard L. Martin, Judith C. Powelson, Steven R. Spielman, David K. Warland, Jonathan A. Zingman
  • Method and apparatus for reading and writing a multilevel signal from an optical disc
    Publication number: 20020034138
    Abstract: A system and method are disclosed for reading a multilevel signal from an optical disc. The method includes reading a raw analog data signal from a disc using an optical detector and adjusting the amplitude of the raw analog data signal. A timing signal is recovered from the amplitude adjusted analog data signal and correction is made for amplitude modulation of the raw analog data signal by processing the raw analog data signal and the timing signal.
    Type: Application
    Filed: July 19, 2001
    Publication date: March 21, 2002
    Inventors: Terrence L. Wong, John L. Fan, David C. Lee, Yi Ling, Yung-Cheng Lo, Steven W. McLaughlin, Laura L. Mcpheters, Richard L. Martin, Judith C. Powelson, Steven R. Spielman, David K. Warland, Jonathan A. Zingman
  • Method for determining when a radio leaves a radio talk group
    Patent number: 5530914
    Abstract: A method for determining when a radio leaves a radio talk group includes the step of notifying a radio(s), such as the initiator of the call (step 308), that one or more members of the talk group left the talk group. This information allows for the initiator of the call or another radio to re-transmit the call at a later date, or to attempt to get the missing radios back into the talk group prior to transmitting another call.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: June 25, 1996
    Assignee: Motorola, Inc.
    Inventor: Laura L. McPheters