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    ADJUSTABLE MODULATION CODING SCHEME TO INCREASE VIDEO STREAM ROBUSTNESS
    1.
    发明申请
    ADJUSTABLE MODULATION CODING SCHEME TO INCREASE VIDEO STREAM ROBUSTNESS 审中-公开

    公开(公告)号：US20190104276A1

    公开(公告)日：2019-04-04

    申请号：US15721125

    申请日：2017-09-29

    Applicant: Advanced Micro Devices, Inc.

    Inventor： Ngoc Vinh Vu ,  Adam William Lynch ,  Darren Rae Di Cera ,  Stephen Mark Ryan

    IPC: H04N5/40 ,  H04N5/44 ,  H04N5/46

    Abstract: Systems, apparatuses, and methods for utilizing different modulation coding schemes (MCSs) for different components of a video stream are disclosed. A system includes a transmitter sending a video stream over a wireless link to a receiver. The transmitter splits the video stream into low, medium, and high quality components, and then the transmitter modulates the different components using different MCS's. For example, the transmitter modulates the low quality component using a lower, robust MCS level to increase the likelihood that this component is received. Also, the medium quality component is modulated using a medium MCS level and the high frequency component is modulated using a higher MCS level. If only the low quality component is received by the receiver, then the receiver reconstructs and displays a low quality video frame from this component, which avoids a glitch in the display of the video stream.

    STEREOSCOPIC INTERLEAVED COMPRESSION
    3.
    发明申请
    STEREOSCOPIC INTERLEAVED COMPRESSION 审中-公开

    公开(公告)号：US20200186832A1

    公开(公告)日：2020-06-11

    申请号：US16210804

    申请日：2018-12-05

    Applicant: Advanced Micro Devices, Inc.

    Inventor： Darren Rae Di Cera ,  Adam William Lynch

    IPC: H04N19/597 ,  H04N19/88 ,  H04N19/33 ,  H04N19/146 ,  H04N19/164 ,  H04N19/137

    Abstract: Systems, apparatuses, and methods for implementing stereoscopic interleaved compression techniques are disclosed. A system includes a transmitter sending a video stream over a wireless link to a receiver. For each pair of frames, the transmitter encodes a left-half of a first frame of the pair with an amount of compression less than a first threshold and encodes a right-half of the first frame with an amount of compression greater than a second threshold. For a second frame of the pair, the transmitter encodes a right-half of the second frame with an amount of compression less than the first threshold and encodes a left-half of the second frame with an amount of compression greater than the second threshold. The transmitter conveys encoded half-frames and indications of an amount of compression used for each half-frame to a receiver. The receiver receives, decodes, and drives the encoded half-frames to a display.

    Stereoscopic interleaved compression
    4.
    发明授权
    Stereoscopic interleaved compression 有权

    公开(公告)号：US10972752B2

    公开(公告)日：2021-04-06

    申请号：US16210804

    申请日：2018-12-05

    Applicant: Advanced Micro Devices, Inc.

    Inventor： Darren Rae Di Cera ,  Adam William Lynch

    IPC: H04N19/597 ,  H04N19/88 ,  H04N19/137 ,  H04N19/146 ,  H04N19/164 ,  H04N19/33

    Abstract: Systems, apparatuses, and methods for implementing stereoscopic interleaved compression techniques are disclosed. A system includes a transmitter sending a video stream over a wireless link to a receiver. For each pair of frames, the transmitter encodes a left-half of a first frame of the pair with an amount of compression less than a first threshold and encodes a right-half of the first frame with an amount of compression greater than a second threshold. For a second frame of the pair, the transmitter encodes a right-half of the second frame with an amount of compression less than the first threshold and encodes a left-half of the second frame with an amount of compression greater than the second threshold. The transmitter conveys encoded half-frames and indications of an amount of compression used for each half-frame to a receiver. The receiver receives, decodes, and drives the encoded half-frames to a display.

    REAL-TIME AND LOW LATENCY PACKETIZATION PROTOCOL FOR LIVE COMPRESSED VIDEO DATA
    6.
    发明申请
    REAL-TIME AND LOW LATENCY PACKETIZATION PROTOCOL FOR LIVE COMPRESSED VIDEO DATA 审中-公开

    公开(公告)号：US20190182308A1

    公开(公告)日：2019-06-13

    申请号：US15834400

    申请日：2017-12-07

    Applicant: Advanced Micro Devices, Inc.

    Inventor： Ngoc Vinh Vu ,  Darren Rae Di Cera ,  Adam William Lynch ,  Shane Bentley ,  Douglas Mammoser ,  David Robert Stark, JR.

    IPC: H04L29/06 ,  H04L27/00 ,  H04L1/00

    Abstract: Systems, apparatuses, and methods for implementing real-time, low-latency packetization protocols for live compressed video data are disclosed. A wireless transmitter includes at least a codec and a media access control (MAC) layer unit. In order for the codec to communicate with the MAC layer unit, the codec encodes the compression ratio in a header embedded inside the encoded video stream. The MAC layer unit extracts the compression ratio from the header and determines a modulation coding scheme (MCS) for transferring the video stream based on the compression ratio. The MAC layer unit and the codec also implement a feedback loop such that the MAC layer unit can command the codec to adjust the compression ratio. Since the changes to the video might not be implemented immediately, the MAC layer unit relies on the header to determine when the video data is coming in with the requested compression ratio.

    Sending a Frame Difference or Raw Chunk Based on a Known Acknowledgement
    7.
    发明申请
    Sending a Frame Difference or Raw Chunk Based on a Known Acknowledgement 审中-公开

    公开(公告)号：US20190068983A1

    公开(公告)日：2019-02-28

    申请号：US15686892

    申请日：2017-08-25

    Applicant: Advanced Micro Devices, Inc.

    Inventor： Stephen Mark Ryan ,  Darren Rae Di Cera

    IPC: H04N19/196 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/597 ,  H04N19/164

    Abstract: Systems, apparatuses, and methods for sending hybrid frames as part of an encoded video stream are disclosed. A system includes a transmitter and a receiver communicating wirelessly. The transmitter partitions a first frame of a video stream into a plurality of portions and sends the plurality of portions to the receiver. The transmitter records which portions of the first frame which were not acknowledged by the receiver. Next, the transmitter generates one or more first portions of a hybrid frame based only on data from a second frame of the video stream and the transmitter generates one or more second portions of the hybrid frame based on a comparison of data from the second frame to data of the first frame. The one or more first portions of the hybrid frame correspond to portions of the first frame which were not acknowledged by the receiver.

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