公开(公告)号：US20250020798A1

公开(公告)日：2025-01-16

申请号：US18774042

申请日：2024-07-16

Applicant: Advanced Micro Devices, Inc.

Inventor： Ngoc Vinh Vu ,  Neil Patrick Kelly

IPC: G01S13/89 ,  G01S7/00 ,  G01S7/04 ,  G02B27/01 ,  H04N5/38 ,  H04N5/44 ,  H04N7/20

Abstract: Systems, apparatuses, and methods for implementing a dual-purpose millimeter-wave frequency band transmitter are disclosed. A system includes a dual-purpose transmitter sending a video stream over a wireless link to a receiver. In some embodiments, the video stream is generated as part of an augmented reality (AR) or virtual reality (VR) application. The transmitter operates in a first mode to scan and map an environment of the transmitter and receiver. The transmitter generates radio frequency (RF) signals in a first frequency range while operating in the first mode. Additionally, the transmitter operates in a second mode to send video data to the receiver, and the transmitter generates RF signals in the first frequency range while operating in the second mode.

公开(公告)号：US20230061698A1

公开(公告)日：2023-03-02

申请号：US18048689

申请日：2022-10-21

Applicant: Advanced Micro Devices, Inc.

Inventor： Ngoc Vinh Vu ,  Neil Patrick Kelly

IPC: G01S13/89 ,  H04N7/20 ,  G01S7/00 ,  H04N5/38 ,  G01S7/04

Abstract: Systems, apparatuses, and methods for implementing a dual-purpose millimeter-wave frequency band transmitter are disclosed. A system includes a dual-purpose transmitter sending a video stream over a wireless link to a receiver. In some embodiments, the video stream is generated as part of an augmented reality (AR) or virtual reality (VR) application. The transmitter operates in a first mode to scan and map an environment of the transmitter and receiver. The transmitter generates radio frequency (RF) signals in a first frequency range while operating in the first mode. Additionally, the transmitter operates in a second mode to send video data to the receiver, and the transmitter generates RF signals in the first frequency range while operating in the second mode.

公开(公告)号：US11539908B2

公开(公告)日：2022-12-27

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 ,  H04N19/36 ,  H04N19/187 ,  H04N19/66 ,  H04N19/30 ,  H04L1/00 ,  H04N19/29 ,  H04N19/67 ,  H04N21/426 ,  H04N5/46 ,  H04N1/00 ,  H04N21/63 ,  H04N7/24

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.

公开(公告)号：US11480672B2

公开(公告)日：2022-10-25

申请号：US17125685

申请日：2020-12-17

Applicant: Advanced Micro Devices, Inc.

Inventor： Ngoc Vinh Vu ,  Neil Patrick Kelly

IPC: G01S13/89 ,  H04N7/20 ,  G01S7/00 ,  H04N5/38 ,  G01S7/04 ,  H04N5/44 ,  G02B27/01

Abstract: Systems, apparatuses, and methods for implementing a dual-purpose millimeter-wave frequency band transmitter are disclosed. A system includes a dual-purpose transmitter sending a video stream over a wireless link to a receiver. In some embodiments, the video stream is generated as part of an augmented reality (AR) or virtual reality (VR) application. The transmitter operates in a first mode to scan and map an environment of the transmitter and receiver. The transmitter generates radio frequency (RF) signals in a first frequency range while operating in the first mode. Additionally, the transmitter operates in a second mode to send video data to the receiver, and the transmitter generates RF signals in the first frequency range while operating in the second mode.

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.

公开(公告)号：US20190101638A1

公开(公告)日：2019-04-04

申请号：US15721457

申请日：2017-09-29

Applicant: Advanced Micro Devices, Inc.

Inventor： Ngoc Vinh Vu ,  Neil Patrick Kelly

IPC: G01S13/89 ,  H04N7/20 ,  H04N5/44 ,  H04N5/38 ,  G01S7/00

Abstract: Systems, apparatuses, and methods for implementing a dual-purpose millimeter-wave frequency band transmitter are disclosed. A system includes a dual-purpose transmitter sending a video stream over a wireless link to a receiver. In some embodiments, the video stream is generated as part of an augmented reality (AR) or virtual reality (VR) application. The transmitter operates in a first mode to scan and map an environment of the transmitter and receiver. The transmitter generates radio frequency (RF) signals in a first frequency range while operating in the first mode. Additionally, the transmitter operates in a second mode to send video data to the receiver, and the transmitter generates RF signals in the first frequency range while operating in the second mode.

公开(公告)号：US20190068926A1

公开(公告)日：2019-02-28

申请号：US15686927

申请日：2017-08-25

Applicant: Advanced Micro Devices, Inc.

Inventor： Ngoc Vinh Vu ,  David Robert Stark, JR. ,  Carson Ryley Reece Green

IPC: H04N7/20 ,  H04L29/06 ,  H01Q3/00

Abstract: Systems, apparatuses, and methods for scheduling beamforming training during vertical blanking intervals (VBIs) are disclosed. A system includes a transmitter sending a video stream over a wireless link to a receiver. The wireless link between the transmitter and the receiver has capacity characteristics that fluctuate with variations in the environment. To combat the fluctuating capacity characteristics of the link, the transmitter and the receiver perform periodic beamforming training procedures to determine whether to adjust the beamforming characteristics of their respective antennas. To avoid interfering with the video data being sent, the system waits until a VBI to perform a beamforming training procedure. If the beamforming training procedure cannot be completed in a single VBI, then multiple VBIs can be used for performing separate portions of the beamforming training procedure. In one embodiment, the system can perform a beamforming training procedure every N VBIs, where N is a positive integer.