Patents by Inventor Jimmy Kazuhiro Omura

Jimmy Kazuhiro Omura 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).

  • Block-adaptive equalization using partial decision feedback in digital broadcast communications
    Patent number: 6559894
    Abstract: A block-adaptive method of performing equalization on a signal received over a broadcast system, includes providing a set of predetermined symbols that correspond to symbols in a data field synchronization segment of a data field having a plurality of segments wherein a data frame having at least two of these data fields is transmitted over the signal in the broadcast system during a block-time interval, correlating complex samples of the signal with the set of predetermined symbols to extract a corresponding impulse response during the block-time interval, selecting a phase identifying the start of the block-time interval from the correlated complex samples, estimating an equalizer filter using the set of predetermined symbols and an initial data field synchronization segment provided at the start of the block-time interval, updating the equalizer filter using subsequent complex samples of the signal to extract a subsequent impulse response and correlate with a reference segment, wherein the reference segmen
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: May 6, 2003
    Assignee: Digeo, Inc.
    Inventors: Jimmy Kazuhiro Omura, Thomas Ross Henderson, Steve Dabell, Mark Robert Peting
  • Block-adaptive equalization using partial decision feedback in digital broadcast communications
    Publication number: 20020009135
    Abstract: A block-adaptive method of performing equalization on a signal received over a broadcast system, includes providing a set of predetermined symbols that correspond to symbols in a data field synchronization segment of a data field having a plurality of segments wherein a data frame having at least two of these data fields is transmitted over the signal in the broadcast system during a block-time interval, correlating complex samples of the signal with the set of predetermined symbols to extract a corresponding impulse response during the block-time interval, selecting a phase identifying the start of the block-time interval from the correlated complex samples, estimating an equalizer filter using the set of predetermined symbols and an initial data field synchronization segment provided at the start of the block-time interval, updating the equalizer filter using subsequent complex samples of the signal to extract a subsequent impulse response and correlate with a reference segment, wherein the reference segmen
    Type: Application
    Filed: June 11, 2001
    Publication date: January 24, 2002
    Inventors: Jimmy Kazuhiro Omura, Thomas Ross Henderson, Steve Dabell, Mark Robert Peting