Patents by Inventor Benyuan Zhang

Benyuan Zhang 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: 11792469
    Abstract: A system may receive a plurality of requests to record a plurality of programs. Based on these requests, resources may be provisioned for transcoding variable bit rate streams into constant bit rate streams. Resources may be provisioned based on assigning transcoding tasks to an existing set of deployed devices in which the transcoding tasks correspond to the plurality of requests. Resources may further be provisioned based on incrementally deploying an additional device to the existing set of deployed devices when the transcoding capacity reaches a certain level.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: October 17, 2023
    Assignee: Comcast Cable Communications, LLC
    Inventor: Benyuan Zhang
  • Publication number: 20180098113
    Abstract: A system may receive a plurality of requests to record a plurality of programs. Based on these requests, resources may be provisioned for transcoding variable bit rate streams into constant bit rate streams. Resources may be provisioned based on assigning transcoding tasks to an existing set of deployed devices in which the transcoding tasks correspond to the plurality of requests. Resources may further be provisioned based on incrementally deploying an additional device to the existing set of deployed devices when the transcoding capacity reaches a certain level.
    Type: Application
    Filed: June 16, 2017
    Publication date: April 5, 2018
    Inventor: Benyuan Zhang
  • Patent number: 9793931
    Abstract: The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client and mitigating interference thereon. Specifically, the present invention relates to transmitting an audio/video program on two white space channels and alternately stopping transmission on one of said channels to search for external transmissions on the white space channel. The present invention permits the wireless home gateway to continuously transmit an audio/video program to a client while periodically searching for transmitters on each of the white space channels.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: October 17, 2017
    Assignee: THOMSON Licensing
    Inventors: Paul Gothard Knutson, Wen Gao, Benyuan Zhang, Hou-Shin Chen
  • Patent number: 9729914
    Abstract: A system may receive a plurality of requests to record a plurality of programs. Based on these requests, resources may be provisioned for transcoding variable bit rate streams into constant bit rate streams. Resources may be provisioned based on assigning transcoding tasks to an existing set of deployed devices in which the transcoding tasks correspond to the plurality of requests. Resources may further be provisioned based on incrementally deploying an additional device to the existing set of deployed devices when the transcoding capacity reaches a certain level.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: August 8, 2017
    Assignee: Comcast Cable Communications, LLC
    Inventor: Benyuan Zhang
  • Publication number: 20160219328
    Abstract: A system may receive a plurality of requests to record a plurality of programs. Based on these requests, resources may be provisioned for transcoding variable bit rate streams into constant bit rate streams. Resources may be provisioned based on assigning transcoding tasks to an existing set of deployed devices in which the transcoding tasks correspond to the plurality of requests. Resources may further be provisioned based on incrementally deploying an additional device to the existing set of deployed devices when the transcoding capacity reaches a certain level.
    Type: Application
    Filed: October 20, 2015
    Publication date: July 28, 2016
    Inventor: Benyuan Zhang
  • Patent number: 9392208
    Abstract: An implementation exits a power saving mode for fixed and periodic active periods of time to receive a separate burst transmission from a first stream during each of the corresponding active periods of time. The first stream is received at a first-stream burst data rate. The first stream includes data configured to be displayed at a first playback rate that is substantially less than the first-stream burst data rate. During the active periods of time, data is received from a second stream at a second-stream rate. The second stream includes data configured to be displayed at a second playback rate that is substantially the same as the second-stream rate. After receiving each of the burst transmissions from the first stream during the active periods of time, the power saving mode is entered for corresponding fixed and periodic power-saving periods of time while waiting for another burst from the first stream.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: July 12, 2016
    Assignee: Thomson Licensing
    Inventors: Paul Gothard Knutson, Kumar Ramaswamy, Joshua Lawrence Koslov, Manoj Viswambharan, Benyuan Zhang, Wen Gao, Yik Chung Wu
  • Patent number: 9197909
    Abstract: A system may receive a plurality of requests to record a plurality of programs. Based on these requests, resources may be provisioned for transcoding variable bit rate streams into constant bit rate streams. Resources may be provisioned based on assigning transcoding tasks to an existing set of deployed devices in which the transcoding tasks correspond to the plurality of requests. Resources may further be provisioned based on incrementally deploying an additional device to the existing set of deployed devices when the transcoding capacity reaches a certain level.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 24, 2015
    Assignee: Comcast Cable Communications, LLC
    Inventor: Benyuan Zhang
  • Publication number: 20150208028
    Abstract: The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client device and to interference mitigation techniques on such system. Specifically, the invention relates to transmitting an audio video program on a first channel, receiving a control signal from a remote control indicating interference on said first channel, changing the transmission channel to a second channel, and transmitting data indicating said second channel to said remote control.
    Type: Application
    Filed: January 20, 2014
    Publication date: July 23, 2015
    Inventors: Paul Gothard KNUTSON, Wen GAO, Benyuan ZHANG, Hou-Shin CHEN
  • Publication number: 20150065185
    Abstract: The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client and mitigating interference thereon. Specifically, the present invention relates to transmitting an audio/video program on two white space channels and alternately stopping transmission on one of said channels to search for external transmissions on the white space channel. The present invention permits the wireless home gateway to continuously transmit an audio/video program to a client while periodically searching for transmitters on each of the white space channels.
    Type: Application
    Filed: January 15, 2010
    Publication date: March 5, 2015
    Inventors: Paul Gothard Knutson, Wen Gao, Benyuan Zhang, Hou-Shin Chen
  • Publication number: 20140282789
    Abstract: A system may receive a plurality of requests to record a plurality of programs. Based on these requests, resources may be provisioned for transcoding variable bit rate streams into constant bit rate streams. Resources may be provisioned based on assigning transcoding tasks to an existing set of deployed devices in which the transcoding tasks correspond to the plurality of requests. Resources may further be provisioned based on incrementally deploying an additional device to the existing set of deployed devices when the transcoding capacity reaches a certain level.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventor: Benyuan Zhang
  • Publication number: 20140078396
    Abstract: An implementation exits a power saving mode for fixed and periodic active periods of time to receive a separate burst transmission from a first stream during each of the corresponding active periods of time. The first stream is received at a first-stream burst data rate. The first stream includes data configured to be displayed at a first playback rate that is substantially less than the first-stream burst data rate. During the active periods of time, data is received from a second stream at a second-stream rate. The second stream includes data configured to be displayed at a second playback rate that is substantially the same as the second-stream rate. After receiving each of the burst transmissions from the first stream during the active periods of time, the power saving mode is entered for corresponding fixed and periodic power-saving periods of time while waiting for another burst from the first stream.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 20, 2014
    Applicant: THOMSON LICENSING
    Inventors: Paul Gothard Knutson, Kumar Ramaswamy, Joshua Lawrence Koslov, Manoj Viswambharan, Benyuan Zhang, Wen Gao, Yik Chung Wu
  • Patent number: 8611431
    Abstract: An implementation exits a power saving mode for fixed and periodic active periods of time to receive a separate burst transmission from a first stream during each of the corresponding active periods of time. The first stream is received at a first-stream burst data rate. The first stream includes data configured to be displayed at a first playback rate that is substantially less than the first-stream burst data rate. During the active periods of time, data is received from a second stream at a second-stream rate. The second stream includes data configured to be displayed at a second playback rate that is substantially the same as the second-stream rate. After receiving each of the burst transmissions from the first stream during the active periods of time, the power saving mode is entered for corresponding fixed and periodic power-saving periods of time while waiting for another burst from the first stream.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: December 17, 2013
    Assignee: Thomson Licensing
    Inventors: Benyuan Zhang, Wen Gao, Kumar Ramaswamy, Paul Gothard Knutson, Joshua Lawrence Koslov, Manoj Viswambharan, Yik Chung Wu
  • Patent number: 8340159
    Abstract: A multipath searcher and method includes a programmable decimation filter configured to adjust a sample rate of a received pilot signal. A plurality of correlators is configured to compare the received pilot signal to a reference code in a first mode and in a second mode. The first mode includes a low resolution search of a search window performed such that the plurality of correlators encompass an entire search window concurrently and the plurality of correlators receives a delayed reference code delayed to correspond with a portion of the search window in which a corresponding correlator performs correlation to identify peaks in the received pilot signal. The second mode includes a high resolution search of a refined search window only at or near identified peaks discovered in the first mode. The high resolution search is focused at the peak location by adjusting delays in the plurality of correlators.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: December 25, 2012
    Assignee: Thomson Licensing
    Inventors: Benyuan Zhang, Paul Gothard Knutson
  • Patent number: 8315314
    Abstract: An implementation provides a transmitter that separates sequential portions of data in a first set of data by time intervals allowing a power saving mode (1005). The transmitter transmits the sequential portions of data separated by respective time intervals having lengths configured to allow a receiver to enter and exit a power saving mode between receiving sequentially transmitted portions of data from the first set of data (1010). The transmitter separates sequential portions of data in a second set by time intervals that are not of sufficient length to allow a receiver to enter and exit a power saving mode during the time intervals (1015). The second set of data is then transmitted (1020).
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: November 20, 2012
    Assignee: Thomson Licensing
    Inventors: Paul Gothard Knutson, Kumar Ramaswamy, Joshua Lawrence Koslov, Manoj Viswambharan, Benyuan Zhang, Wen Gao, Yik Chung Wu
  • Publication number: 20120274859
    Abstract: The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client device and to interference mitigation techniques on such system. Specifically, the invention relates to transmitting an audio video program on a first channel, receiving a control signal from a remote control indicating interference on said first channel, changing the transmission channel to a second channel, and transmitting data indicating said second channel to said remote control.
    Type: Application
    Filed: February 9, 2010
    Publication date: November 1, 2012
    Inventors: Paul Gothard Knutson, Wen Gao, Benyuan Zhang, Hou-Shin Chen
  • Patent number: 8081576
    Abstract: A method and apparatus for identifying valid multipath energy peaks are described including locating an energy peak in a profile of energy peaks, categorizing the located energy peak based on a plurality of thresholds and processing energy peaks in at least one of the categories of located energy peaks. The method and apparatus further includes removing a direct current value component from each value in the profile of energy peaks, calculating a noise floor for a multipath searching window and determining a first threshold and a second threshold. The step and means for categorizing further includes determining if the located energy peak exceeds the first threshold, labeling the located energy peak as a false alarm, if the located energy peak does not exceed the first threshold, determining if the located energy peak exceeds the second threshold and labeling the located energy peak as confident, if the located energy peak exceeds the second threshold.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: December 20, 2011
    Assignee: Thomson Licensing
    Inventors: Benyuan Zhang, Paul Gothard Knutson
  • Publication number: 20100283918
    Abstract: A receiver is an ATSC receiver having at least two modes of operation. In a first mode of operation the ATSC receiver determines an initial carrier frequency offset with respect to a carrier frequency in the received signal as a function of a field sync signal in the received signal. In a second mode of operation, the ATSC receiver tracks a carrier frequency in a received signal using a carrier tracking loop.
    Type: Application
    Filed: December 27, 2007
    Publication date: November 11, 2010
    Inventor: Benyuan Zhang
  • Publication number: 20100242078
    Abstract: An Advanced Television Systems Committee Digital Television (ATSC DTV) transmitter transmits a digital multiplex that includes a legacy DTV channel and a mobile DTV channel. The mobile DTV channel is conveyed in mobile packets that comprise mobile data and additional mobile training information. A mobile packet comprises 207 bytes wherein 2 bytes are header information, 20 bytes are Reed-Solomon (RS) parity information and 185 bytes convey mobile data and mobile training information. The mobile training information is inserted into mobile packets such that the additional training information appears in contiguous positions after convolutional interleaving.
    Type: Application
    Filed: June 20, 2008
    Publication date: September 23, 2010
    Inventors: Wen Gao, Benyuan Zhang, Paul Knutson
  • Publication number: 20100220603
    Abstract: A method and apparatus for identifying valid multipath energy peaks are described including locating an energy peak in a profile of energy peaks, categorizing the located energy peak based on a plurality of thresholds and processing energy peaks in at least one of the categories of located energy peaks. The method and apparatus further includes removing a direct current value component from each value in the profile of energy peaks, calculating a noise floor for a multipath searching window and determining a first threshold and a second threshold. The step and means for categorizing further includes determining if the located energy peak exceeds the first threshold, labeling the located energy peak as a false alarm, if the located energy peak does not exceed the first threshold, determining if the located energy peak exceeds the second threshold and labeling the located energy peak as confident, if the located energy peak exceeds the second threshold.
    Type: Application
    Filed: June 24, 2005
    Publication date: September 2, 2010
    Inventors: Benyuan Zhang, Paul Gothard Knutson
  • Publication number: 20100118206
    Abstract: A signal comprises a sequence of fields, each field having a synchronization portion and a data portion, a transmitter inserts a pseudonoise (PN) sequence into the synchronization portion of a field for use in identifying a presence of mobile data in the data portion of that field; and transmits the signal. In complementary fashion, a receiver receives the signal and upon detecting the PN sequence in the synchronization portion of the received signal determines whether or not mobile data is in the data portion of that field of the received signal.
    Type: Application
    Filed: June 20, 2008
    Publication date: May 13, 2010
    Inventors: Wen Gao, Benyuan Zhang, Paul Knutson