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).
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Publication number: 20240137484Abstract: 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: ApplicationFiled: August 27, 2021Publication date: April 25, 2024Inventors: Tieshi WANG, Kuanjun PENG, Xue DONG, Chunmiao ZHOU, Tao HONG, Hui ZHANG, Xin DUAN, Minglei CHU, Xiaochuan CHEN, Guangcai YUAN, Jing YU
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Patent number: 10079727Abstract: 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: GrantFiled: December 30, 2015Date of Patent: September 18, 2018Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
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Patent number: 10015052Abstract: 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: GrantFiled: November 24, 2015Date of Patent: July 3, 2018Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
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Patent number: 9537689Abstract: 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: GrantFiled: June 20, 2012Date of Patent: January 3, 2017Assignee: The DirecTV Group, Inc.Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang
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Patent number: 9485010Abstract: 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: GrantFiled: March 16, 2006Date of Patent: November 1, 2016Assignee: 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
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Publication number: 20160119069Abstract: 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: ApplicationFiled: December 30, 2015Publication date: April 28, 2016Inventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
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Publication number: 20160080171Abstract: 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: ApplicationFiled: November 24, 2015Publication date: March 17, 2016Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
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Patent number: 9253515Abstract: 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: GrantFiled: November 9, 2012Date of Patent: February 2, 2016Assignee: Broadcom CorporationInventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
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Publication number: 20150143447Abstract: 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: ApplicationFiled: January 27, 2015Publication date: May 21, 2015Inventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
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Patent number: 8973076Abstract: 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: GrantFiled: February 24, 2014Date of Patent: March 3, 2015Assignee: Broadcom CorporationInventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
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Patent number: 8837567Abstract: 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: GrantFiled: December 9, 2011Date of Patent: September 16, 2014Assignee: Broadcom CorporationInventor: Guangcai Zhou
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Publication number: 20140173672Abstract: 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: ApplicationFiled: February 24, 2014Publication date: June 19, 2014Applicant: Broadcom CorporationInventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
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Patent number: 8701152Abstract: 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: GrantFiled: November 9, 2012Date of Patent: April 15, 2014Assignee: Broadcom CorporationInventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Wan, Steve Krafft, Guangcai Zhou
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Patent number: 8594575Abstract: 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: GrantFiled: April 14, 2008Date of Patent: November 26, 2013Assignee: The DIRECTV Group, Inc.Inventors: Joseph Santoru, Ernest C. Chen, Shamik Maitra, Dennis Lai, Guangcai Zhou, Tung-Sheng Lin
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Patent number: 8571480Abstract: 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: GrantFiled: October 30, 2008Date of Patent: October 29, 2013Assignee: 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
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Publication number: 20130239160Abstract: 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: ApplicationFiled: November 9, 2012Publication date: September 12, 2013Applicant: Broadcom CorporationInventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Wan, Steve Krafft, Guangcai Zhou
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Publication number: 20130235887Abstract: 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: ApplicationFiled: November 9, 2012Publication date: September 12, 2013Applicant: BROADCOM CORPORATIONInventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
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Publication number: 20130101007Abstract: 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: ApplicationFiled: December 9, 2011Publication date: April 25, 2013Applicant: Broadcom CorporationInventor: Guangcai ZHOU
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Publication number: 20120257697Abstract: 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: ApplicationFiled: June 20, 2012Publication date: October 11, 2012Applicant: The DIRECTV Group, Inc.Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang
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Patent number: 8213553Abstract: 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: GrantFiled: April 4, 2008Date of Patent: July 3, 2012Assignee: The DIRECTV Group, Inc.Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang