公开(公告)号：US20210329272A1

公开(公告)日：2021-10-21

申请号：US17230823

申请日：2021-04-14

Applicant: QUALCOMM Incorporated

Inventor： Dmytro RUSANOVSKYY ,  Yan ZHANG ,  Marta KARCZEWICZ

IPC: H04N19/186 ,  H04N19/117 ,  H04N19/184 ,  H04N19/174

Abstract: Systems and techniques are described herein for processing video data. For example, a process can include obtaining a video bitstream, the video bitstream including adaptive loop filter (ALF) data. The process can further include determining a value of an ALF chroma filter signal flag from the ALF data, the value of the ALF chroma filter signal flag indicating whether chroma ALF filter data is signaled in the video bitstream. The process can further include processing at least a portion of a slice of video data based on the value of the ALF chroma filter signal flag.

公开(公告)号：US20210099729A1

公开(公告)日：2021-04-01

申请号：US17033659

申请日：2020-09-25

Applicant: QUALCOMM Incorporated

Inventor： Dmytro RUSANOVSKYY ,  Marta KARCZEWICZ ,  Yan ZHANG

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/139 ,  H04N19/103 ,  H04N19/132 ,  H04N19/186

Abstract: Systems, methods, and computer-readable storage media for video coding and compression are described. Some examples include affine coding modes for video coding and compression. One example is an apparatus for coding video data, the apparatus comprising memory and one or more processors coupled to the memory. The one or more processors are configured to obtain a current coding block from the video data, determine control data for the current coding block, and determine one or more affine motion vector clipping parameters from the control data. The one or more processors further select a sample of the current coding block, determine an affine motion vector for the sample of the current coding block, and clip the affine motion vector using the one or more affine motion vector clipping parameters to generate a clipped affine motion vector.

公开(公告)号：US20210092432A1

公开(公告)日：2021-03-25

申请号：US17028064

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Dmytro RUSANOVSKYY ,  Marta KARCZEWICZ ,  Yan ZHANG

IPC: H04N19/513 ,  H04N19/56 ,  H04N19/176 ,  H04N19/159

Abstract: Systems, methods, and computer-readable media are provided for updating history-based motion vector tables. In some examples, a method can include obtaining one or more blocks of video data; determining a first motion vector derived from a first control point of a block of the one or more blocks, the block being coded using an affine motion mode; determining a second motion vector derived from a second control point of the block; based on the first motion vector and the second motion vector, estimating a third motion vector for a predetermined location within the block; and populating a history-based motion vector predictor (HMVP) table with the third motion vector.

公开(公告)号：US20210329273A1

公开(公告)日：2021-10-21

申请号：US17231935

申请日：2021-04-15

Applicant: QUALCOMM Incorporated

Inventor： Dmytro RUSANOVSKYY ,  Yan ZHANG ,  Marta KARCZEWICZ

IPC: H04N19/186 ,  H04N19/70 ,  H04N19/176 ,  H04N19/132 ,  H04N19/136 ,  H04N19/103

Abstract: Systems and techniques are described herein for processing video data. In some examples, a process is described that can include obtaining at least one block of video data and predicting one or more video samples for the at least one block. The process can include obtaining a dynamic range adjustment (DRA) syntax element from the video data. In some cases, the DRA syntax element includes an indication associated with a plurality of DRA modes for the video data. The process can include processing the one or more video samples for the at least one block using a DRA mode based on the indication of the DRA syntax element.

公开(公告)号：US20240107391A1

公开(公告)日：2024-03-28

申请号：US18254352

申请日：2021-01-29

Applicant: QUALCOMM INCORPORATED

Inventor： Nan ZHANG ,  Peng WU ,  Yuyi LI ,  Yong HOU ,  Mengling GUAN ,  Yan ZHANG ,  Yujie QIU ,  Jun MA ,  Yueming TENG ,  Shailesh MAHESHWARI ,  Gang Andy XIAO ,  Vishal DALMIYA ,  Xiaochen CHEN ,  Vaishakh RAO

IPC: H04W36/00 ,  H04W36/02 ,  H04W36/24 ,  H04W76/10

CPC classification number: H04W36/0066 ,  H04W36/02 ,  H04W36/249 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are disclosed by the present application. A request to establish a call using a first connection may be received, the first connection using a first radio access technology to communicate with a radio access network. During execution of a procedure to establish the call, a command to handover communications from the first connection to a second connection that uses a second radio access technology to communicate with the radio access network may be received. The second connection may be established in response to the command, and a message indicating that the request to establish the call was successfully received may be transmitted over the second connection. Also, a message indicating that an alert of the call is being issued may be transmitted over the second connection.

公开(公告)号：US20200178143A1

公开(公告)日：2020-06-04

申请号：US16781983

申请日：2020-02-04

Applicant: QUALCOMM Incorporated

Inventor： Ling XIE ,  Shiau-He TSAI ,  Jie MAO ,  Yan ZHANG ,  Huichun CHEN ,  Shanshan WANG ,  Song TIAN ,  Yong XIE

IPC: H04W36/30 ,  H04W48/20

Abstract: A user equipment (UE) expedites cell reselection by reselecting a neighbor cell prior to call setup. In one instance, the UE measures a signal quality of a serving cell and a signal quality of the neighbor cell. The UE starts a reselection timer for reselecting the neighbor cell based on the measured signal quality of the serving cell and the measured signal quality of the neighbor cell. The UE reselects the neighbor cell prior to a scheduled expiration of the reselection timer.

公开(公告)号：US20180288667A1

公开(公告)日：2018-10-04

申请号：US15762439

申请日：2015-12-29

Applicant: Ling XIE ,  Shiau-He TSAI ,  Jie MAO ,  Yan ZHANG ,  Huichun CHEN ,  Shanshan WANG ,  Song TIAN ,  Yong XIE ,  QUALCOMM INCORPORATED

Inventor： Ling XIE ,  Shiau-He TSAI ,  Jie MAO ,  Yan ZHANG ,  Huichun CHEN ,  Shanshan WANG ,  Song TIAN ,  Yong XIE

IPC: H04W36/30

Abstract: A user equipment (UE) expedites cell reselection. In one instance, the UE starts a reselection timer for reselecting to a neighbor cell when a signal quality of a serving cell is determined to fall below a first threshold. The UE then expedites reselecting to the neighbor cell based on a difference between the signal quality of the serving cell and the signal quality of the neighbor cell when the signal quality of the serving cell falls below a second threshold.