Patents by Inventor Zhichong CHEN
Zhichong CHEN 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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Patent number: 10469868Abstract: An in-loop filtering acceleration circuit applied in a video codec system supporting the H.264 standard and the VC-1 standard is provided. The circuit includes multiple one-dimensional (1D) filters configured to perform a filtering process; and a filter selection unit configured to select one of the 1D filters according to the value of the boundary strength to perform the filtering processing to the reconstructed macroblock. The in-loop filtering acceleration circuit further divides the reconstructed macroblock into multiple 8×8 blocks and multiple 4×4 blocks, performs the filtering process to horizontal edges of the 8×8 blocks the reconstructed macroblock row by row from bottom to top, and performs the filtering process to horizontal edges of the 4×4 blocks row by row from top to bottom.Type: GrantFiled: August 5, 2015Date of Patent: November 5, 2019Assignee: Intel CorporationInventors: Yinglai Xi, Qiang Li, Jumei Li, Jianbin He, Jinfeng Zhou, Zhichong Chen, Liu Yang, Dong Li
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Patent number: 10164668Abstract: A mobile phone device, a radio frequency transceiver circuit and an impedance adjusting device. The present invention discloses a mobile phone device. The mobile phone device comprises a baseband processor, an antenna, a duplexer and a radio frequency transceiver circuit. The antenna is used to receive and send radio frequency signals. The duplexer is electrically connected to the antenna. The radio frequency transceiver circuit is connected to the baseband processor and the duplexer, respectively. The radio frequency transceiver circuit comprises a first power amplifier and an impedance adjusting device. The first power amplifier has a first output impedance.Type: GrantFiled: June 16, 2016Date of Patent: December 25, 2018Assignee: Intel CorporationInventors: Jinfeng Zhou, Zhichong Chen
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Patent number: 10021408Abstract: The invention provides a video codec. In one embodiment, the video codec is coupled to an outer memory storing a reference frame, and comprises an interface circuit, an in-chip memory, a motion estimation circuit, and a controller. The interface circuit obtains in-chip data from the reference frame stored in the outer memory. The in-chip memory stores the in-chip data. The motion estimation circuit retrieves search window data from the in-chip data with a search window, and performs a motion estimation process on a current macroblock according to the search-window data. The controller shifts the location of the search window when the current macroblock is shifted, marks a macroblock shifted out from the search window as an empty macroblock, and controls the interface circuit to obtain an updated macroblock for replacing the empty macroblock in the in-chip memory from the reference frame stored in the outer memory.Type: GrantFiled: July 27, 2017Date of Patent: July 10, 2018Assignee: Intel CorporationInventors: Zhichong Chen, Jinfeng Zhou, Jianbin He, Liu Yang, Qiang Li
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Patent number: 9961354Abstract: The invention provides a video codec. In one embodiment, the video codec is coupled to an outer memory storing a reference frame, and comprises an interface circuit, an in-chip memory, a motion estimation circuit, and a controller. The interface circuit obtains in-chip data from the reference frame stored in the outer memory. The in-chip memory stores the in-chip data. The motion estimation circuit retrieves search window data from the in-chip data with a search window, and performs a motion estimation process on a current macroblock according to the search-window data. The controller shifts the location of the search window when the current macroblock is shifted, marks a macroblock shifted out from the search window as an empty macroblock, and controls the interface circuit to obtain an updated macroblock for replacing the empty macroblock in the in-chip memory from the reference frame stored in the outer memory.Type: GrantFiled: May 2, 2017Date of Patent: May 1, 2018Assignee: Intel CorporationInventors: Zhichong Chen, Jinfeng Zhou, Jianbin He, Liu Yang, Qiang Li
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Publication number: 20180102798Abstract: A mobile phone device, a radio frequency transceiver circuit and an impedance adjusting device. The present invention discloses a mobile phone device. The mobile phone device comprises a baseband processor, an antenna, a duplexer and a radio frequency transceiver circuit. The antenna is used to receive and send radio frequency signals. The duplexer is electrically connected to the antenna. The radio frequency transceiver circuit is connected to the baseband processor and the duplexer, respectively. The radio frequency transceiver circuit comprises a first power amplifier and an impedance adjusting device. The first power amplifier has a first output impedance.Type: ApplicationFiled: June 16, 2016Publication date: April 12, 2018Inventors: Jinfeng Zhou, Zhichong Chen
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Patent number: 9918079Abstract: An electronic device for motion compensation is provided. The electronic device has a processing unit configured to perform a decoding program on a video bitstream to output decoding data, wherein the decoding data has a plurality of inter-prediction macroblocks, and the processing unit further generates a plurality of first pixel interpolation values according to the inter-prediction macroblocks which are smaller than a predetermined macroblock size. A motion compensation acceleration circuit is configured to generate a plurality of second pixel interpolation values according to the inter-prediction macroblocks which are larger than or equal to the predetermined macroblocks size, and generate a plurality of reconstructed macroblocks according to the first pixel interpolation values, the second pixel interpolation values, and a plurality of corresponding residue values.Type: GrantFiled: May 7, 2013Date of Patent: March 13, 2018Assignee: Intel CorporationInventors: Yinglai Xi, Qiang Li, Zhichong Chen, Jumei Li
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Publication number: 20170324968Abstract: The invention provides a video codec. In one embodiment, the video codec is coupled to an outer memory storing a reference frame, and comprises an interface circuit, an in-chip memory, a motion estimation circuit, and a controller. The interface circuit obtains in-chip data from the reference frame stored in the outer memory. The in-chip memory stores the in-chip data. The motion estimation circuit retrieves search window data from the in-chip data with a search window, and performs a motion estimation process on a current macroblock according to the search-window data. The controller shifts the location of the search window when the current macroblock is shifted, marks a macroblock shifted out from the search window as an empty macroblock, and controls the interface circuit to obtain an updated macroblock for replacing the empty macroblock in the in-chip memory from the reference frame stored in the outer memory.Type: ApplicationFiled: July 27, 2017Publication date: November 9, 2017Inventors: Zhichong CHEN, Jinfeng ZHOU, Jianbin HE, Liu YANG, Qiang LI
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Publication number: 20170302942Abstract: The invention provides a video codec. In one embodiment, the video codec is coupled to an outer memory storing a reference frame, and comprises an interface circuit, an in-chip memory, a motion estimation circuit, and a controller. The interface circuit obtains in-chip data from the reference frame stored in the outer memory. The in-chip memory stores the in-chip data. The motion estimation circuit retrieves search window data from the in-chip data with a search window, and performs a motion estimation process on a current macroblock according to the search-window data. The controller shifts the location of the search window when the current macroblock is shifted, marks a macroblock shifted out from the search window as an empty macroblock, and controls the interface circuit to obtain an updated macroblock for replacing the empty macroblock in the in-chip memory from the reference frame stored in the outer memory.Type: ApplicationFiled: May 2, 2017Publication date: October 19, 2017Inventors: Zhichong CHEN, Jinfeng ZHOU, Jianbin HE, Liu YANG, Qiang LI
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Patent number: 9648338Abstract: The invention provides a video codec. In one embodiment, the video codec is coupled to an outer memory storing a reference frame, and comprises an interface circuit, an in-chip memory, a motion estimation circuit, and a controller. The interface circuit obtains in-chip data from the reference frame stored in the outer memory. The in-chip memory stores the in-chip data. The motion estimation circuit retrieves search window data from the in-chip data with a search window, and performs a motion estimation process on a current macroblock according to the search-window data. The controller shifts the location of the search window when the current macroblock is shifted, marks a macroblock shifted out from the search window as an empty macroblock, and controls the interface circuit to obtain an updated macroblock for replacing the empty macroblock in the in-chip memory from the reference frame stored in the outer memory.Type: GrantFiled: February 27, 2012Date of Patent: May 9, 2017Assignee: Intel CorporationInventors: Zhichong Chen, Jinfeng Zhou, Jianbin He, Liu Yang, Qiang Li
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Publication number: 20170019134Abstract: A mobile phone device, a radio frequency transceiver circuit and an impedance adjusting device. The present invention discloses a mobile phone device. The mobile phone device comprises a baseband processor, an antenna, a duplexer and a radio frequency transceiver circuit. The antenna is used to receive and send radio frequency signals. The duplexer is electrically connected to the antenna. The radio frequency transceiver circuit is connected to the baseband processor and the duplexer, respectively. The radio frequency transceiver circuit comprises a first power amplifier and an impedance adjusting device. The first power amplifier has a first output impedance.Type: ApplicationFiled: June 16, 2016Publication date: January 19, 2017Inventors: Jinfeng Zhou, Zhichong Chen
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Publication number: 20170017339Abstract: The present invention discloses a flat panel device and a method for operating a flat panel device. The flat panel device has a reset switch. The reset switch is used to disconnect a battery of the flat panel device from a load so as to force to turn off the flat panel device when a touch control panel of the flat panel device is disabled.Type: ApplicationFiled: June 17, 2016Publication date: January 19, 2017Inventors: Jinfeng Zhou, Zhichong Chen
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Publication number: 20150341658Abstract: An in-loop filtering acceleration circuit applied in a video codec system supporting the H.264 standard and the VC-1 standard is provided. The circuit includes multiple one-dimensional (1D) filters configured to perform a filtering process; and a filter selection unit configured to select one of the 1D filters according to the value of the boundary strength to perform the filtering processing to the reconstructed macroblock. The in-loop filtering acceleration circuit further divides the reconstructed macroblock into multiple 8×8 blocks and multiple 4×4 blocks, performs the filtering process to horizontal edges of the 8×8 blocks the reconstructed macroblock row by row from bottom to top, and performs the filtering process to horizontal edges of the 4×4 blocks row by row from top to bottom.Type: ApplicationFiled: August 5, 2015Publication date: November 26, 2015Inventors: Yinglai XI, Qiang LI, Jumei LI, Jianbin HE, Jinfeng ZHOU, Zhichong CHEN, Liu YANG, Dong LI
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Publication number: 20130301701Abstract: An electronic device for motion compensation is provided. The electronic device has a processing unit configured to perform a decoding program on a video bitstream to output decoding data, wherein the decoding data has a plurality of inter-prediction macroblocks, and the processing unit further generates a plurality of first pixel interpolation values according to the inter-prediction macroblocks which are smaller than a predetermined macroblock size. A motion compensation acceleration circuit is configured to generate a plurality of second pixel interpolation values according to the inter-prediction macroblocks which are larger than or equal to the predetermined macroblocks size, and generate a plurality of reconstructed macroblocks according to the first pixel interpolation values, the second pixel interpolation values, and a plurality of corresponding residue values.Type: ApplicationFiled: May 7, 2013Publication date: November 14, 2013Applicant: VIA Telecom, Inc.Inventors: Yinglai XI, Qiang LI, Zhichong CHEN, Jumei LI
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Publication number: 20120155543Abstract: The invention provides a video codec. In one embodiment, the video codec is coupled to an outer memory storing a reference frame, and comprises an interface circuit, an in-chip memory, a motion estimation circuit, and a controller. The interface circuit obtains in-chip data from the reference frame stored in the outer memory. The in-chip memory stores the in-chip data. The motion estimation circuit retrieves search window data from the in-chip data with a search window, and performs a motion estimation process on a current macroblock according to the search-window data. The controller shifts the location of the search window when the current macroblock is shifted, marks a macroblock shifted out from the search window as an empty macroblock, and controls the interface circuit to obtain an updated macroblock for replacing the empty macroblock in the in-chip memory from the reference frame stored in the outer memory.Type: ApplicationFiled: February 27, 2012Publication date: June 21, 2012Applicant: VIA TELECOM, INC.Inventors: Zhichong CHEN, Jinfeng ZHOU, Jianbin HE, Liu YANG, Qiang LI