Patents by Inventor Xiaohua Yang
Xiaohua Yang 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: 20170272780Abstract: This disclosure relates to a wide gamut encoder capable of receiving a wide gamut color image in accordance with a wide gamut standard. The encoder can encode one or more wide gamut color image pixel values into portions of narrow gamut encoding elements for transmission to a video encoder. The encoder can implement an advanced extended YCC format that is backward compatible with a P3 color gamut.Type: ApplicationFiled: March 15, 2016Publication date: September 21, 2017Inventors: Hao Pan, Yingjun Bai, Xuemei Zhang, Haitao Guo, Munehiro Nakazato, Xiaohua Yang
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Publication number: 20170184842Abstract: Disclosed is an observation mask of a dermatoscope (3), comprising a mask body (1) connected to the front end of the dermatoscope (3), and an observation lens (2) arranged on the mask body (1), wherein the mask body (1) and the observation lens (2) are of the same non-metallic material, the observation lens (2) and the mask body (1) are provided integrally, and the observation lens (2) is transparent. The observation mask has a simple structure, is easy to install, can be used in a disposable way, is safe and healthy, and also protects a lens surface of the dermatoscope (3).Type: ApplicationFiled: December 29, 2014Publication date: June 29, 2017Applicant: Zumax Medical Co., Ltd.Inventors: Shunguo Shen, Jianyue Li, Xiaohua Yang, Xiaotian Chen
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Patent number: 9680690Abstract: A method, a network adapter, a host system, and a network device for implementing a network adapter offload function. If a data packet received by the network adapter or the host system is a data packet unknown to the network adapter, the data packet unknown to the network adapter is parsed, a new policy entry is generated, and the new policy entry is updated into the host policy table and the network adapter policy table. Therefore, for a packet that includes a new proprietary or standard protocol header Tag, only a functional module that parses the packet needs to be updated, so that the functional module is capable of processing such a packet and delivering a new policy entry to the host policy table and the network adapter policy table and the network adapter does not need to be changed.Type: GrantFiled: May 30, 2014Date of Patent: June 13, 2017Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaohua Yang, Fuqing Sun, Yungui Wang
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Patent number: 9553520Abstract: A switching power source, a method and a control chip for controlling the same are provided. The switching power source includes: a filtering and rectifying module, connected with an AC power source and configured to filter and rectify an alternating current outputted from the AC power source to obtain a direct current; a control module, connected with the filtering and rectifying module and configured to obtain an amplitude of the alternating current from the direct current, to adjust a frequency of a control signal according to the amplitude, in which the control module decreases the frequency of the control signal continuously or intermittently when the amplitude increases, and to output the control signal; and a primary constant current circuit, connected with the control module and the filtering and rectifying module respectively, and configured to receive the control signal and to output a constant current according to the control signal.Type: GrantFiled: March 4, 2014Date of Patent: January 24, 2017Assignee: BYD COMPANY LIMITEDInventors: Wenhui Ye, Xiaohua Yang
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Publication number: 20170009121Abstract: A composition and use thereof are disclosed herein. The composition comprises at least two selected from the group of amphiphilic block copolymer, polyurethane and acidic ionic compound. Also an oil-based drilling fluid comprising the composition and a method improving shearing force of oil-based drilling fluid are disclosed. The composition disclosed herewith can raise the shearing force of oil-based drilling fluid.Type: ApplicationFiled: July 6, 2016Publication date: January 12, 2017Applicants: China Petroleum & Chemical Corporation, SINOPEC Research Institute of Petroleum EngineeringInventors: Yongxue LIN, Xianguang WANG, Zhoujun LI, Xiuzhen HAN, Sheng LI, Xiaohua YANG, Xiong LI, Jianwu ZHEN, Suli ZHAO
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Patent number: 9543846Abstract: A switching power source includes: a dimmer connected to an alternating current power supply and having a plurality of operating modes; a filtering/rectifying module connected to the dimmer to filter an alternating current output from the dimmer to obtain a filtered alternating current and rectify the filtered alternating current into a direct current; a dimmer switching module connected to the dimmer; a control module connected to the filtering/rectifying module and the dimmer switching module, respectively, and configured to detect a current operating mode of the dimmer when the switching power source is powered on, generate a dimmer control signal according to the current operating mode, and control the dimmer switching module to turn on or off according to the dimmer control signal to control the dimmer to enter an operating mode; and a primary constant current circuit connected to the control module and the filtering and rectifying module.Type: GrantFiled: December 25, 2013Date of Patent: January 10, 2017Assignee: BYD Company LimitedInventors: Chuhua Hu, Xingfu Jiang, Xiaohua Yang
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Publication number: 20160360234Abstract: Methods are described for encoding and decoding blocks of image data using intra block copying (IBC). A source block for intra block copying is selected from a source region of a current image that is closer to the current block than a threshold, wherein the source region does not include a portion of the current image that is further from the current block than the threshold.Type: ApplicationFiled: June 2, 2016Publication date: December 8, 2016Inventors: Alexandros Michael Tourapis, David William Singer, Haitao Guo, Hsi-Jung Wu, Sorin C. Cismas, Xiaohua Yang, Yeping Su, Dazhong Zhang
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Publication number: 20160353107Abstract: Methods and systems provide an adaptive quantization parameter (QP) modulation scheme for video coding and compression that is sensitive to user visual perception. In an embodiment, the method includes detecting an eye sensitive region, where a region is considered sensitive based on a noticeability of a visual effect. The method includes estimating encoding parameters for image content in the detected eye sensitive region. The method further includes encoding the detected eye sensitive region with the estimated encoding parameters. The estimating the encoding parameters may be based on, among other things, a variance, a motion vector, a DC value, an edge value, and external information such as a user command or screen content. The encoding may include storing an average or maximum sum of square differences (SSD) value for a detected eye sensitive area and adjusting a QP value based on a comparison of the SSD value to generated threshold values.Type: ApplicationFiled: May 26, 2015Publication date: December 1, 2016Inventors: Jian Lou, Congxia Dai, Hao Pan, Xiaohua Yang
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Patent number: 9331396Abstract: An antenna structure is disclosed that includes a dipole antenna and a slot antenna extending along a first axis. The dipole antenna and the slot antenna each have a radiation pattern that is omni-directional in an azimuth plane of the Earth. The dipole antenna radiates vertically polarized electric field, and the slot antenna radiates a horizontally polarized electric field.Type: GrantFiled: July 22, 2013Date of Patent: May 3, 2016Assignee: QUALCOMM IncorporatedInventors: Allen Minh-Triet Tran, Donald Farrell Breslin, Xiaohua Yang
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Patent number: 9262191Abstract: A method, an apparatus, and a system for processing a service flow, which belong to the field of communications. Correspondence between a service application attribute and a service application identifier is preconfigured on an NSP board so that after a service flow carrying the service application attribute is received, the service application identifier of the service flow may be determined, which service application corresponding to a service flow may be known according to the service application identifier corresponding to the service flow, and when a plurality of service applications is deployed on an NSP at the same time, a service flow can be correctly sent to a virtual machine of a corresponding service application for service processing.Type: GrantFiled: January 14, 2014Date of Patent: February 16, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Yungui Wang, Fuqing Sun, Xiaohua Yang, Wei E, Jun Guo
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Patent number: 9243180Abstract: The present invention provides a filtration control agent and a drilling fluid containing the same. The filtration control agent comprises the product obtained from the reaction of water, lignite, aldehyde and sulfonate polymer at 180-220° C. and the units containing sulfonate groups in the molecular chains of sulfonate polymer are at least 30 wt %. The filtration control agent provided by the present invention features a good filtration loss reduction effect and a low viscosity effect and can improve the rheological behavior of the drilling fluid, thereby meeting the requirements of the drilling of deep wells, ultra-deep wells and ultra high pressure formations.Type: GrantFiled: September 26, 2012Date of Patent: January 26, 2016Assignees: China Petroleum & Chemical Corporation, SINOPEC Research Institute of Petroleum EngineeringInventors: Xiaohua Yang, Lin Wang, Yongxue Lin, Sheng Li, Long Chai, Xiaoqiang Dong
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Publication number: 20150381058Abstract: A switching power source, a method and a control chip for controlling the same are provided. The switching power source includes: a filtering and rectifying module, connected with an AC power source and configured to filter and rectify an alternating current outputted from the AC power source to obtain a direct current; a control module, connected with the filtering and rectifying module and configured to obtain an amplitude of the alternating current from the direct current, to adjust a frequency of a control signal according to the amplitude, in which the control module decreases the frequency of the control signal continuously or intermittently when the amplitude increases, and to output the control signal, and a primary constant current circuit, connected with the control module and the filtering and rectifying module respectively, and configured to receive the control signal and to output a constant current according to the control signal.Type: ApplicationFiled: March 4, 2014Publication date: December 31, 2015Inventors: Wenhui YE, Xiaohua YANG
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Publication number: 20150340954Abstract: A switching power source includes: a dimmer connected to an alternating current power supply and having a plurality of operating modes; a filtering/rectifying module connected to the dimmer to filter an alternating current output from the dimmer to obtain a filtered alternating current and rectify the filtered alternating current into a direct current; a dimmer switching module connected to the dimmer; a control module connected to the filtering/rectifying module and the dimmer switching module, respectively, and configured to detect a current operating mode of the dimmer when the switching power source is powered on, generate a dimmer control signal according to the current operating mode, and control the dimmer switching module to turn on or off according to the dimmer control signal to control the dimmer to enter an operating mode; and a primary constant current circuit connected to the control module and the filtering and rectifying module.Type: ApplicationFiled: December 25, 2013Publication date: November 26, 2015Applicant: BYD COMPANY LIMITEDInventors: Chuhua HU, Xingfu JIANG, Xiaohua YANG
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Patent number: 9112407Abstract: A quasi-resonant device for a switching power, a quasi-resonant system for a switching power, and a method for a quasi-resonant control of a switching power are provided. The quasi-resonant device includes: a degaussing time sampling module, configured to sample a degaussing time Tds of a secondary coil of the transformer according to a feedback signal output by the switching power after the switching tube is turned off; a valley sampling module, configured to sample a resonant valley signal of the quasi-resonant module according to the feedback signal; a time producing module, configured to produce a time T with a predetermined ratio D by processing the degaussing time Tds; and a logic processing module, configured to obtain a first valley signal after the time T, and the first valley signal works as a switching signal T? to turn on the switching tube.Type: GrantFiled: June 10, 2013Date of Patent: August 18, 2015Assignees: Shenzhen BYD Auto R&D Company Limited, BYD Company LimitedInventors: Yongjun Hou, Xiaohua Yang
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Patent number: 9096862Abstract: The present invention generally relates to plants and methods of producing modified plants that exhibit enhanced drought resistance and bacterial resistance relative to non-modified plants.Type: GrantFiled: December 30, 2011Date of Patent: August 4, 2015Assignee: UNIVERSITY OF MARYLAND, COLLEGE PARKInventors: Shunyuan Xiao, Wenming Wang, Xiaohua Yang
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Publication number: 20150117536Abstract: AVC decoding techniques include parsing a set of alternating slices of one or more picture frames and parsing another set of alternating slices of the one or more picture frames. The parsed set of alternating slices of the one or more picture frames are buffered separately from the parsed other set of alternating slices of the one or more picture frames. The buffered parsed set of alternating slices and the other buffered parsed set of alternating slices are alternating decoded.Type: ApplicationFiled: October 30, 2013Publication date: April 30, 2015Applicant: Nvidia CorporationInventors: Xinyang YU, Olivier LAPICQUE, Xiaohua YANG, Jincheng LI, Manindra PARHY
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Patent number: 8976546Abstract: A control integrated circuit for controlling a switch power supply, including: a voltage collecting module, configured to collect a feedback voltage based on an output voltage of the switch power supply; an error amplifying module, configured to compare the feedback voltage with a reference voltage and generate an error voltage; a time collecting module, configured to obtain a degaussing time signal based on the feedback voltage; and a constant voltage and current module, configured to collect a peak current feedback signal of a switch transistor, generate a control signal based on the error voltage, the degaussing time signal and the peak current feedback signal, wherein the control signal is for controlling an operating frequency and a duty ratio of the switch transistor, and control the switch transistor according to the control signal.Type: GrantFiled: July 30, 2012Date of Patent: March 10, 2015Assignees: Shenzhen BYD Auto R&D Company Limited, BYD Company LimitedInventors: Wenqing Wang, Xiaohua Yang, Chuntian Yu, Yuming Feng
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Publication number: 20140327588Abstract: An antenna structure is disclosed that includes a dipole antenna and a slot antenna extending along a first axis. The dipole antenna and the slot antenna each have a radiation pattern that is omni-directional in an azimuth plane of the Earth. The dipole antenna radiates vertically polarized electric field, and the slot antenna radiates a horizontally polarized electric field.Type: ApplicationFiled: July 22, 2013Publication date: November 6, 2014Applicant: QUALCOMM IncorporatedInventors: Allen Minh-Triet Tran, Donald Farrell Breslin, Xiaohua Yang
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Publication number: 20140280857Abstract: A method, a network adapter, a host system, and a network device for implementing a network adapter offload function. If a data packet received by the network adapter or the host system is a data packet unknown to the network adapter, the data packet unknown to the network adapter is parsed, a new policy entry is generated, and the new policy entry is updated into the host policy table and the network adapter policy table. Therefore, for a packet that includes a new proprietary or standard protocol header Tag, only a functional module that parses the packet needs to be updated, so that the functional module is capable of processing such a packet and delivering a new policy entry to the host policy table and the network adapter policy table and the network adapter does not need to be changed.Type: ApplicationFiled: May 30, 2014Publication date: September 18, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Xiaohua Yang, Fuqing Sun, Yungui Wang
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Publication number: 20140186626Abstract: The present invention provides a modified starch, preparation method and use of the same, also provides a drilling fluid comprising the modified starch which contains bi-substituted starch structural units and tri-substituted starch structural units, wherein, the tri-substituted starch structural units are represented by the following formula (1), the bi-substituted starch structural units are the structural units represented by the following formula (2) and/or the structural units represented by the following formula (3), and the total content of the bi-substituted starch structural units and tri-substituted starch structural units accounts for 20 wt % or more of the modified starch, preferably 20-30 wt %, the weight-average molecular weight of the etherified starch is 50,000-600,000, preferably 80,000-580,000, wherein, R1, R2, and R3 are C1-C5 alkylene respectively, and M1, M2, and M3 are H, alkali metal element, or alkaline earth metal element respectively.Type: ApplicationFiled: September 19, 2013Publication date: July 3, 2014Applicants: SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING, CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Zhifa WANG, Zhi Yang, Yongxue Lin, Xiaohua Yang, Jiang Xu, Long Chai, Zhoujun Li, Guo Zhang, Yang Xu, Haibo Wang, Yong Kong