Patents by Inventor Guangcai Zhou

Guangcai Zhou 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).

  • Publication number: 20240137484
    Abstract: Provided in the embodiments of the present disclosure are a display panel, a display apparatus and a driving method therefor, and an image rendering method.
    Type: Application
    Filed: August 27, 2021
    Publication date: April 25, 2024
    Inventors: Tieshi WANG, Kuanjun PENG, Xue DONG, Chunmiao ZHOU, Tao HONG, Hui ZHANG, Xin DUAN, Minglei CHU, Xiaochuan CHEN, Guangcai YUAN, Jing YU
  • Patent number: 10079727
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute data streams to bonded channels that are clocked independently. A system is provided for synchronizing the bonded channels.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 18, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
  • Patent number: 10015052
    Abstract: Different data communication architectures receive a wide variety of content, including audio and video content, for consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures receive distributed video programming in the form of MPEG2 TS packets, flagged by marker packets. Channel bonding synchronization information may be present in packets defined above the data-link layer or received in fields within data-link layer frames.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: July 3, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
  • Patent number: 9537689
    Abstract: Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: January 3, 2017
    Assignee: The DirecTV Group, Inc.
    Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang
  • Patent number: 9485010
    Abstract: A method and apparatus for adaptively controlling a transmission signal for transmission to at least one receiver in a terrestrial region is disclosed. The method selects a transmission signal mode having a modulation scheme, code scheme, and code rate from a plurality of transmission signal modes according to received information, generates a transmission signal according to the selected mode, and transmits the generated transmission signal to the receiver.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: November 1, 2016
    Assignee: The DirecTV Group, Inc.
    Inventors: Ernest C. Chen, Joseph Santoru, Patrick J. Loner, Shamik Maitra, Donald J. Breier, Leon J. Stanger, Dennis Lai, Tung-Sheng Lin, Guangcai Zhou
  • Publication number: 20160119069
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute data streams to bonded channels that are clocked independently. A system is provided for synchronizing the bonded channels.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 28, 2016
    Inventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
  • Publication number: 20160080171
    Abstract: Different data communication architectures receive a wide variety of content, including audio and video content, for consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures receive distributed video programming in the form of MPEG2 TS packets, flagged by marker packets. Channel bonding synchronization information may be present in packets defined above the data-link layer or received in fields within data-link layer frames.
    Type: Application
    Filed: November 24, 2015
    Publication date: March 17, 2016
    Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
  • Patent number: 9253515
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute data streams to bonded channels that are clocked independently. A system is provided for synchronizing the bonded channels.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: February 2, 2016
    Assignee: Broadcom Corporation
    Inventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
  • Publication number: 20150143447
    Abstract: Different data communication architectures receive a wide variety of content, including audio and video content, for consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures receive distributed video programming in the form of MPEG2 TS packets, flagged by marker packets. Channel bonding synchronization information may be present in packets defined above the data-link layer or received in fields within data-link layer frames.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
  • Patent number: 8973076
    Abstract: Different data communication architectures receive a wide variety of content, including audio and video content, for consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures receive distributed video programming in the form of MPEG2 TS packets, flagged by marker packets. Channel bonding synchronization information may be present in packets defined above the data-link layer or received in fields within data-link layer frames.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: March 3, 2015
    Assignee: Broadcom Corporation
    Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
  • Patent number: 8837567
    Abstract: Systems and methods are provided, for estimating a channel based on previous channel estimations from the same source. Embodiments disclosed herein enable removal of the timing variation (from burst to burst) so that the channel can be more accurately estimated. Embodiments provide several systems and methods for averaging channel estimation information from each of the bursts. The systems and methods disclosed herein advantageously improve channel estimation accuracy and reduce modulation error.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Guangcai Zhou
  • Publication number: 20140173672
    Abstract: Different data communication architectures receive a wide variety of content, including audio and video content, for consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures receive distributed video programming in the form of MPEG2 TS packets, flagged by marker packets. Channel bonding synchronization information may be present in packets defined above the data-link layer or received in fields within data-link layer frames.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: Broadcom Corporation
    Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
  • Patent number: 8701152
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute video programming in the form of MPEG2 TS packets, flagged by marker packets, in a round-robin manner across the communication channels. Channel bonding synchronization information may be present in packets defined above the data-link layer or added to fields within data-link layer frames.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: April 15, 2014
    Assignee: Broadcom Corporation
    Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Wan, Steve Krafft, Guangcai Zhou
  • Patent number: 8594575
    Abstract: Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises shifting a characteristic of the first signal with respect to a like characteristic of the second signal to mitigate co-channel interference, and transmitting the first signal and the second signal over different channels of the communication system.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: November 26, 2013
    Assignee: The DIRECTV Group, Inc.
    Inventors: Joseph Santoru, Ernest C. Chen, Shamik Maitra, Dennis Lai, Guangcai Zhou, Tung-Sheng Lin
  • Patent number: 8571480
    Abstract: Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises scrambling a first frame using a first scrambling code, attaching a first header to the first frame to create the first signal, scrambling a second frame using a second scrambling code, attaching a second header to the second frame to create the second signal, and transmitting the first signal and the second signal over different channels of the communication system.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 29, 2013
    Assignee: The DIRECTV Group, Inc.
    Inventors: Lin-Nan Lee, Feng-Wen Sun, Adam Von Ancken, Joseph Santoru, Ernest C. Chen, Shamik Maitra, Dennis Lai, Guangcai Zhou, Tung-Sheng Lin
  • Publication number: 20130239160
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute video programming in the form of MPEG2 TS packets, flagged by marker packets, in a round-robin manner across the communication channels. Channel bonding synchronization information may be present in packets defined above the data-link layer or added to fields within data-link layer frames.
    Type: Application
    Filed: November 9, 2012
    Publication date: September 12, 2013
    Applicant: Broadcom Corporation
    Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Wan, Steve Krafft, Guangcai Zhou
  • Publication number: 20130235887
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute data streams to bonded channels that are clocked independently. A system is provided for synchronizing the bonded channels.
    Type: Application
    Filed: November 9, 2012
    Publication date: September 12, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
  • Publication number: 20130101007
    Abstract: Systems and methods are provided, for estimating a channel based on previous channel estimations from the same source. Embodiments disclosed herein enable removal of the timing variation (from burst to burst) so that the channel can be more accurately estimated. Embodiments provide several systems and methods for averaging channel estimation information from each of the bursts. The systems and methods disclosed herein advantageously improve channel estimation accuracy and reduce modulation error.
    Type: Application
    Filed: December 9, 2011
    Publication date: April 25, 2013
    Applicant: Broadcom Corporation
    Inventor: Guangcai ZHOU
  • Publication number: 20120257697
    Abstract: Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.
    Type: Application
    Filed: June 20, 2012
    Publication date: October 11, 2012
    Applicant: The DIRECTV Group, Inc.
    Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang
  • Patent number: 8213553
    Abstract: Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: July 3, 2012
    Assignee: The DIRECTV Group, Inc.
    Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang