Patents by Inventor Roy B. Blake

Roy B. Blake 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).

  • Patent number: 7406143
    Abstract: The present invention provides a transceiver couplable to a communications network having a jitter control processor and method of operating the same. In one aspect of the present invention, the jitter control processor of the transceiver includes a receiver stage. The receiver stage includes: (1) a receive time error measurement system configured to generate a receive time error signal as a function of a receive clock signal experiencing jitter and a feedback signal, (2) a jitter processing circuit configured to develop a dejittered control signal as a function of the time error signal, and (3) a clock generator system configured to provide the feedback signal as a function of the dejittered control signal and a transceiver local clock signal.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: July 29, 2008
    Assignee: Agere Systems Inc.
    Inventor: Roy B. Blake
  • Patent number: 6985550
    Abstract: The present invention provides a transceiver couplable to a communications network having a jitter control processor and methods of operating the same. In one aspect of the present invention, the jitter control processor of the transceiver includes a transmitter stage that controls a transmit signal. In one embodiment, the transmitter stage includes a transmit time error measurement system configured to generate a transmit time error signal as a function of timing synchronization associated with a communications network clock and a transceiver master clock, a transmit filter circuit configured to develop a filtered time error signal as a function of the transmit time error signal, and a stuffing control system configured to insert a stuffing control signal into the transmit signal as a function of the transmit time error signal and the filtered time error signal.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: January 10, 2006
    Assignee: Agere Systems Inc.
    Inventor: Roy B. Blake
  • Patent number: 6831900
    Abstract: A filter cell, method of deriving an echo component and an echo canceling system, bit pump and transceiver employing the same. In one embodiment, the filter cell includes a first summing node that receives a first input based on a signal sample that contains an echo component of an echo. The filter cell also includes a second summing node that receives a second input based on the signal sample. The filter cell still further includes a multiplier that employs outputs from the first and second summing nodes and a scaling factor to derive first and second outputs containing a remnant of the echo component.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: December 14, 2004
    Assignee: Agere Systems Inc.
    Inventor: Roy B. Blake
  • Publication number: 20030016734
    Abstract: The present invention provides a transceiver couplable to a communications network having a jitter control processor and methods of operating the same. In one aspect of the present invention, the jitter control processor of the transceiver includes a transmitter stage that controls a transmit signal. The transmitter stage includes: (1) a transmit time error measurement system configured to generate a transmit time error signal as a function of timing synchronization associated with a communications network clock and a transceiver master clock, (2) a transmit filter circuit configured to develop a filtered time error signal as a function of the transmit time error signal, and (3) a stuffing control system configured to insert a stuffing control signal into the transmit signal as a function of the transmit time error signal and the filtered time error signal. In another aspect of the present invention, the jitter control processor of the transceiver includes a receiver stage.
    Type: Application
    Filed: April 30, 2001
    Publication date: January 23, 2003
    Inventor: Roy B. Blake
  • Publication number: 20020150059
    Abstract: A filter cell, method of deriving an echo component and an echo canceling system, bit pump and transceiver employing the same. In one embodiment, the filter cell includes a first summing node that receives a first input based on a signal sample that contains an echo component of an echo. The filter cell also includes a second summing node that receives a second input based on the signal sample. The filter cell still further includes a multiplier that employs outputs from the first and second summing nodes and a scaling factor to derive first and second outputs containing a remnant of the echo component.
    Type: Application
    Filed: February 9, 2001
    Publication date: October 17, 2002
    Inventor: Roy B. Blake