Patents by Inventor Wai Chung Tony Chan

Wai Chung Tony Chan 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: 8737420
    Abstract: There is provided a powerline network that includes a number of stations including a central coordinator for coordinating transmissions of each of the stations. Each of the stations is configurable to generate one or more tone maps for communicating with each of the other stations in the powerline network. Each tone map includes a set of tones to be used on a communication link between two of the stations. Each tone map further includes a unique set of modulation methods for each tone. Each of the stations is further configurable to generate a default tone map for communicating with each of the other stations, where the default tone map is valid for all portions of a powerline cycle. Each of the stations is further configurable to monitor its bandwidth needs and to request additional bandwidth from the central coordinator.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: May 27, 2014
    Assignees: Sigma Designs Israel S.D.I. Ltd., Atheros Communications, Inc., Sharp Corporation
    Inventors: Neal Riedel, Yiorgos M. Peponides, James E. Petranovich, Lawrence W. Yonge, Srinivas Katar, Deepak Ayyagari, Sherman L. Gavette, Wai Chung Tony Chan
  • Patent number: 8553706
    Abstract: There is provided a powerline network that includes a number of stations including a central coordinator for coordinating transmissions of each of the stations. The central coordinator is configurable to transmit a beacon at an interval based on a phase of a powerline cycle. The interval of the beacon can be substantially equal to two periods of the powerline cycle. The interval of the beacon includes a reserved region including a persistent allocation region and a non-persistent allocation region. The beacon also includes a broadcast message including a persistent schedule and a non-persistent schedule. The persistent schedule is valid for a current beacon period and a number of subsequent beacon periods as indicated by the beacon, while the non-persistent schedule is valid for a single beacon period. The persistent allocation region and the non-persistent allocation region are determined based on the persistent schedule and the non-persistent schedule, respectively.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: October 8, 2013
    Assignee: CopperGate Communications Ltd.
    Inventors: Neal Riedel, Yiorgos M. Peponides, James E. Petranovich, Lawrence W. Yonge, Srinivas Katar, Deepak Ayyagari, Sherman L. Gavette, Wai Chung Tony Chan