Patents by Inventor Kui Wang

Kui Wang 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: 10595031
    Abstract: A method, apparatus, and manufacture for processing video data. A list of output layer sets in a video bitstream is received, and an index to at least one target output layer set in the list of output layer sets is received. Next, target output layers in the at least one target output layer set is determined based on the index. At least the target output layers from the video bitstream are decoded. Then, the decoded target output layers are output without outputting layers that are not targeted for output.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: March 17, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Ying Chen, Adarsh Krishnan Ramasubramonian, Ye-Kui Wang
  • Publication number: 20200080051
    Abstract: Provided are methods of controlling disassociation of cells from a carrier, compositions, and methods of collecting cells. The methods of controlling disassociation of cells from a carrier may include contacting a polymeric carrier with one or more digesting agents to disassociate at least a portion of a plurality of cells from the polymeric carrier. The polymeric carrier may be crosslinked with a crosslinker including at least one of a redox sensitive moiety, a UV light sensitive moiety, a pH sensitive moiety, and a temperature sensitive moiety.
    Type: Application
    Filed: May 1, 2018
    Publication date: March 12, 2020
    Applicant: Massachusetts Institute of Technology
    Inventors: Yi Zhang, Natalie Artzi, Kui Wang, Eytan Abraham, Yonatan Levinson
  • Patent number: 10587934
    Abstract: A device for processing media data is configured to receive media data including virtual reality (VR) video data; determine, based at least in part on data signaled at an adaptation set level of a media presentation description for a media presentation, a projection mapping used in the media presentation; process segments of a video representation of the media presentation based on the projection mapping used in the media presentation. A device for processing media data is configured to generate media data that includes VR video data; include in the media data, data signaled at an adaptation set level of a media presentation description that identifies a projection mapping used in media presentation included in the media data; and send segments of a video representation of the media presentation based on the projection mapping used in the media presentation.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: March 10, 2020
    Assignee: Qualcomm Incorporated
    Inventor: Ye-Kui Wang
  • Patent number: 10587883
    Abstract: In one example, a device for processing media content includes a memory configured to store media content; and one or more processors implemented in circuitry and configured to process a first packed region of the media content, wherein to process the first packed region, the one or more processors are configured to unpack the first packed region to produce a first unpacked region, and form a first projected region from the first unpacked region; and process a second packed region of the media content, the second packed region overlapping the first packed region at least in part, wherein to process the second packed region, the one or more processors are configured to unpack the second packed region to produce a second unpacked region, and form a second projected region from the second unpacked region.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: March 10, 2020
    Assignee: Qualcomm Incorporated
    Inventor: Ye-Kui Wang
  • Patent number: 10582201
    Abstract: A device for determining information for video data includes one or more processors implemented in circuitry that are configured to determine one or more most-interested regions of a plurality of regions of an image of video data based on data representative of the one or more most-interested regions. The data representative of the one or more most-interested regions is external to video coding layer (VCL) data of a bitstream including the video data. The processors output a request for relatively high-quality video data for the one or more most-interested regions of the image and output, after outputting the request for the relatively high-quality video data, a request for relatively low-quality video data for one or more other regions of the image.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: March 3, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Ye-Kui Wang, Fnu Hendry
  • Publication number: 20200068196
    Abstract: A video coder may reconstruct a current picture of video data. A current region of the current picture is associated with a temporal index indicating a temporal layer to which the current region belongs. Furthermore, for each respective array of a plurality of arrays that correspond to different temporal layers, the video coder may store, in the respective array, sets of adaptive loop filtering (ALF) parameters used in applying ALF filters to samples of regions of pictures of the video data that are decoded prior to the current region and that are in the temporal layer corresponding to the respective array or a lower temporal layer than the temporal layer corresponding to the respective array. The video coder determines, based on a selected set of ALF parameters in the array corresponding to the temporal layer to which the current region belongs, an applicable set of ALF parameters.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 27, 2020
    Inventors: Li ZHANG, Wei-Jung CHIEN, Marta KARCZEWICZ, Ye-Kui WANG
  • Patent number: 10567804
    Abstract: A video decoder assembles, in a buffer model, an access unit from a plurality of elementary streams of a video data stream. The video data stream may be a transport stream or a program stream. The same buffer model is used regardless of whether the elementary streams contain Scalable High Efficiency Video Coding (SHVC), Multi-View HEVC (MV-HEVC), or 3D-HEVC bitstreams. Furthermore, the video decoder decodes the access unit.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 18, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Ying Chen, Ye-Kui Wang
  • Patent number: 10567734
    Abstract: An example device for processing video data includes a memory configured to store an omnidirectional video stream, and a processor implemented in circuitry and configured to process (e.g., encode, transmit, receive, or decode) a first frame of a set of file format samples of the omnidirectional video stream, the set of file format samples referring to a sample entry, the first frame having a first region-wise packing scheme, and process a second frame of the set of file format samples referring to the sample entry, the second frame having a second region-wise packing scheme different than the first region-wise packing scheme. In this manner, a single omnidirectional video bitstream may include an entire virtual reality (VR) video content with most-requested regions being optimized with a largest number of color samples per unit of area.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: February 18, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Thomas Stockhammer, Ye-Kui Wang
  • Patent number: 10565463
    Abstract: A device for determining information for video data includes one or more processors implemented in circuitry that are configured to determine one or more most-interested regions of a plurality of regions of an image of video data from data representative of the one or more most-interested regions. The one or more processors are further configured to generate a request specifying the one or more most-interested regions using the data representative of the one or more most-interested regions and output the request to a server device.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: February 18, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Ye-Kui Wang, Fnu Hendry
  • Patent number: 10560710
    Abstract: Methods for coding recovery point supplemental enhancement information (SEI) messages and region refresh SEI messages in multi-layer coding are disclosed. In one aspect, the method may include determining at least one picture among a plurality of pictures included within an access unit with which to associate at least one recovery point SEI message, the access unit being included within the multi-layer bitstream. The method may further include associating the at least one recovery point SEI message with the determined at least one picture. The method may also include coding the video information based at least in part on the association of the at least one recovery point SEI message with the determined at least one picture.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: February 11, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Fnu Hendry, Ye-Kui Wang, Adarsh Krishnan Ramasubramonian
  • Publication number: 20200036160
    Abstract: A vertical-cavity surface-emitting laser (VCSEL) device includes a first distributed Bragg reflector (DBR) structure of a first conductivity type, and a second DBR structure of a second conductivity type. The second conductivity type is different than the first conductivity type. The VCSEL includes a cavity positioned between the first DBR structure and the second DBR structure. The cavity includes at least one quantum well structure to generate light. The VCSEL includes a first thermal buffer layer positioned between the cavity and the first DBR structure, and a second thermal buffer positioned between the cavity and the second DBR structure.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 30, 2020
    Inventors: Ramana M. V. Murty, Tak Kui Wang
  • Patent number: 10547834
    Abstract: An apparatus configured to decode video information includes a memory and a processor in communication with the memory. The memory is configured to a memory configured to store video information associated with bitstream. The apparatus further includes a processor in communication with the memory, the processor configured to determine that a reference layer is not included in the bitstream and to receive, from an external source, a decoded base layer picture. The processor is further configured to receive, from the external source, a first indication that the picture is an intra random access point (IRAP) picture. The processor is also configured to receive a second indication whether the picture is one of an instantaneous decoder refresh (IDR) picture, a clean random access (CRA) picture, or a broken link access (BLA) picture; and to decode the video information based at least in part on the first and second indications.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: January 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventor: Ye-Kui Wang
  • Patent number: 10542285
    Abstract: Techniques are described related to output and removal of decoded pictures from a decoded picture buffer (DPB). The example techniques may remove a decoded picture from the DPB prior to coding a current picture. For instance, the example techniques may remove the decoded picture if that decoded picture is not identified in the reference picture set of the current picture.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: January 21, 2020
    Assignee: Velos Media, LLC
    Inventors: Ye-Kui Wang, Ying Chen
  • Patent number: 10542261
    Abstract: Techniques and systems are provided for decoding video data. For example, a method of decoding video data includes receiving, by a decoding device, an encoded video bitstream generated according to a first coding protocol, and determining that a base layer is to be provided to the decoding device as part of an external bitstream that is different from the received encoded video bitstream. The external bitstream is provided to the decoding device by an external source and is not provided as part of the encoded video bitstream. The base layer is encoded using a second coding protocol that is different from the first coding protocol. The method further includes determining to ignore a profile, tier, and level syntax structure assigned to the base layer in the video parameter set in response to determining the base layer is to be provided to the decoding device as part of an external bitstream.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: January 21, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Ye-Kui Wang, Fnu Hendry, Adarsh Krishnan Ramasubramonian
  • Patent number: 10535976
    Abstract: A vertical-cavity surface-emitting laser (VCSEL) device includes a first distributed Bragg reflector (DBR) structure of a first conductivity type, and a second DBR structure of a second conductivity type. The second conductivity type is different than the first conductivity type. The VCSEL includes a cavity positioned between the first DBR structure and the second DBR structure. The cavity includes at least one quantum well structure to generate light. The VCSEL includes a first thermal buffer layer positioned between the cavity and the first DBR structure, and a second thermal buffer positioned between the cavity and the second DBR structure.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: January 14, 2020
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Ramana M. V. Murty, Tak Kui Wang
  • Publication number: 20190390985
    Abstract: A surface shape determination system includes a surface shape sensor in the form of a flexible and stretchable elastomeric substrate with strain/displacement sensing elements embedded in it. The sensor may be a single-core optical fiber with a series of fiber Bragg Gratings (FBGs) located at predetermined positions along its length. A light source provides an incident light spectrum at one end of the fiber. Each grating of the fiber has index modulation which causes particular wavelengths of the light spectrum that do not satisfy the Bragg condition to be reflected back in the fiber. The refractive index of each grating changes with strain on the substrate due to deflection of it. An interrogator captures the reflected wavelengths and retrieves signal information therefrom. A processor receives the output of the interrogator and performs non-linear regression analysis on the information using a neural network to reconstruct the surface morphology in real-time.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Applicant: THE UNIVERSITY OF HONG KONG
    Inventors: Ka Wai KWOK, Tian Le Tim LUN, Di-Lang Justin HO, Kui WANG, Kit-Hang Brian LEE, Kin-Yip Kenneth WONG
  • Patent number: 10506230
    Abstract: A video coder may reconstruct a current picture of video data. A current region of the current picture is associated with a temporal index indicating a temporal layer to which the current region belongs. Furthermore, for each respective array of a plurality of arrays that correspond to different temporal layers, the video coder may store, in the respective array, sets of adaptive loop filtering (ALF) parameters used in applying ALF filters to samples of regions of pictures of the video data that are decoded prior to the current region and that are in the temporal layer corresponding to the respective array or a lower temporal layer than the temporal layer corresponding to the respective array. The video coder determines, based on a selected set of ALF parameters in the array corresponding to the temporal layer to which the current region belongs, an applicable set of ALF parameters.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: December 10, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Li Zhang, Wei-Jung Chien, Marta Karczewicz, Ye-Kui Wang
  • Patent number: 10484719
    Abstract: A method, electronic device, computer program product, system and circuit assembly are provided for allocating one or more redundant pictures by taking into consideration the information content of the primary pictures, with which the redundant pictures would be associated. In particular, primary pictures that are determined to be more sensitive to transmission loss or corruption may be allocated one or more redundant pictures, while those that are less sensitive may not be so allocated. By selectively allocating redundant pictures to only those primary pictures that are more sensitive, the method disclosed reduces the amount of overhead associated with redundant pictures and increases the coding efficiency, without sacrificing the integrity of the video data.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: November 19, 2019
    Assignee: Conversant Wireless Licensing S.a.r.l
    Inventors: Chunbo Zhu, Ye-Kui Wang, Houqiang Li
  • Publication number: 20190349580
    Abstract: An example method for encoding or decoding video data includes storing, by a video coder and in a reference picture buffer, a version of a current picture of the video data, including the current picture in a reference picture list (RPL) used to predict the current picture, and coding, by the video coder and based on the RPL, a block of video data in the current picture based on a predictor block of video data included in the version of the current picture stored in the reference picture buffer.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 14, 2019
    Inventors: Xiang Li, Chao Pang, Ying Chen, Ye-Kui Wang
  • Publication number: 20190327285
    Abstract: A method for reporting a streaming quality is shown, wherein at least one continuous media stream is streamed to a client (601), and wherein the streaming is controlled by a protocol (109) that is operated between the client (601) and a server (600), the method including selecting at least one quality metric and a quality metrics class from a pre-defined set of at least two quality metrics classes, and reporting to the server (600) the quality of the streaming based on the at least one selected quality metric and the selected quality metrics class. The protocol (109) is preferably a Real-time Streaming Protocol (RTSP) in combination with a Session Description Protocol (SDP) in the context of the 3GPP Packet-Switched Streaming Service (PSS). Also shown is a computer program, a computer program product, a system, a client, a server and a protocol.
    Type: Application
    Filed: January 28, 2019
    Publication date: October 24, 2019
    Inventor: Ye-Kui WANG