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公开(公告)号：US20240214283A1
公开(公告)日：2024-06-27
申请号：US18088935
申请日：2022-12-27
Applicant: ATI TECHNOLOGIES ULC
Inventor： Gennadiy Kolesnik , Mikhail Mironov
IPC: H04N21/438 , H04N21/442
CPC classification number: H04N21/4384 , H04N21/44209
Abstract: A client latency module generates a trigger event in response to an input event. The trigger event is inserted into an event queue to be sent to a content provider system. A stream including a plurality of images, audio data, or both, is received from the content provider system. A trigger event response generated in response to the trigger event is identified from the stream. A stream latency is determined by comparing a time corresponding to the trigger event with a time corresponding to the trigger event response. As a result, a single timer is used to measure latency of a streaming solution.
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公开(公告)号：US20210240257A1
公开(公告)日：2021-08-05
申请号：US16778767
申请日：2020-01-31
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
Abstract: Systems, apparatuses, and methods for hiding latency for wireless virtual reality (VR) and augmented reality (AR) applications are disclosed. A wireless VR or AR system includes a transmitter rendering, encoding, and sending video frames to a receiver coupled to a head-mounted display (HMD). In one scenario, the receiver measures a total latency required for the system to render a frame and prepare the frame for display. The receiver predicts a future head pose of a user based on the total latency. Next, a rendering unit at the transmitter renders, based on the predicted future head pose, a new frame with a rendered field of view (FOV) larger than a FOV of the headset. The receiver rotates the new frame by an amount determined by the difference between the actual head pose and the predicted future head pose to generate a rotated version of the new frame for display.
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公开(公告)号：US11831888B2
公开(公告)日：2023-11-28
申请号：US17378323
申请日：2021-07-16
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
IPC: H04N19/436 , H04N19/42 , H04N19/174
CPC classification number: H04N19/436 , H04N19/174 , H04N19/439
Abstract: Systems, apparatuses, and methods for reducing latency for wireless virtual and augmented reality applications are disclosed. A virtual reality (VR) or augmented reality (AR) system includes a transmitter rendering, encoding, and sending video frames to a receiver coupled to a head-mounted display (HMD). In one scenario, rather than waiting until the entire frame is encoded before sending the frame to the receiver, the transmitter sends an encoded left-eye portion to the receiver while the right-eye portion is being encoded. In another scenario, the frame is partitioned into a plurality of slices, and each slice is encoded and then sent to the receiver while the next slice is being encoded. In a further scenario, each slice is being encoded while the next slice is being rendered. In a still further scenario, each slice is prepared for presentation by the receiver while the next slice is being decoded by the receiver.
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公开(公告)号：US20210344939A1
公开(公告)日：2021-11-04
申请号：US17378323
申请日：2021-07-16
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
IPC: H04N19/436 , H04N19/42 , H04N19/174
Abstract: Systems, apparatuses, and methods for reducing latency for wireless virtual and augmented reality applications are disclosed. A virtual reality (VR) or augmented reality (AR) system includes a transmitter rendering, encoding, and sending video frames to a receiver coupled to a head-mounted display (HMD). In one scenario, rather than waiting until the entire frame is encoded before sending the frame to the receiver, the transmitter sends an encoded left-eye portion to the receiver while the right-eye portion is being encoded. In another scenario, the frame is partitioned into a plurality of slices, and each slice is encoded and then sent to the receiver while the next slice is being encoded. In a further scenario, each slice is being encoded while the next slice is being rendered. In a still further scenario, each slice is prepared for presentation by the receiver while the next slice is being decoded by the receiver.
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公开(公告)号：US12028737B2
公开(公告)日：2024-07-02
申请号：US17031191
申请日：2020-09-24
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
IPC: H04W28/02 , G06T9/00 , H04L67/131 , H04W28/06
CPC classification number: H04W28/0215 , G06T9/00 , H04L67/131 , H04W28/06
Abstract: A method and apparatus for reducing latency in a virtual reality system including a plurality of devices comprises capturing and transmitting, by a first device, a first batch of data to a second device. The second device renders and encodes a second data based upon the first batch of data, and transmits the first encoded image to the first device. Based upon a determination of a likelihood of collision between a transmission of a second batch of data from the first device and the transmission of the second data, the first device adjusts a frequency of capturing and transmitting the second batch of data.
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Patent Agency Ranking
公开(公告)号：US20210192681A1
公开(公告)日：2021-06-24
申请号：US16719354
申请日：2019-12-18
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
Abstract: A client device for use in processing reality technology content is provided. The client device comprises memory configured to store data and a processor in communication with the memory. The processor is configured to receive, from a server device via network communication channel, a video stream comprising encoded video frames and motion vector information and extract, at the client device, the motion vector information. The processor is also configured to decode the video frames, determine whether to at least one of time warp the video frames and space warp the video frames using the extracted motion vector information. The processor is also configured to display the warped video frame data.
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公开(公告)号：US12148120B2
公开(公告)日：2024-11-19
申请号：US16719354
申请日：2019-12-18
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
Abstract: A client device for use in processing reality technology content is provided. The client device comprises memory configured to store data and a processor in communication with the memory. The processor is configured to receive, from a server device via network communication channel, a video stream comprising encoded video frames and motion vector information and extract, at the client device, the motion vector information. The processor is also configured to decode the video frames, determine whether to at least one of time warp the video frames and space warp the video frames using the extracted motion vector information. The processor is also configured to display the warped video frame data.
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公开(公告)号：US20220095149A1
公开(公告)日：2022-03-24
申请号：US17031191
申请日：2020-09-24
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
Abstract: A method and apparatus for reducing latency in a virtual reality system including a plurality of devices comprises capturing and transmitting, by a first device, a first batch of data to a second device. The second device renders and encodes a second data based upon the first batch of data, and transmits the first encoded image to the first device. Based upon a determination of a likelihood of collision between a transmission of a second batch of data from the first device and the transmission of the second data, the first device adjusts a frequency of capturing and transmitting the second batch of data.
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公开(公告)号：US11070829B2
公开(公告)日：2021-07-20
申请号：US16716122
申请日：2019-12-16
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
IPC: H04N19/436 , H04N19/42 , H04N19/174
Abstract: Systems, apparatuses, and methods for reducing latency for wireless virtual and augmented reality applications are disclosed. A virtual reality (VR) or augmented reality (AR) system includes a transmitter rendering, encoding, and sending video frames to a receiver coupled to a head-mounted display (HMD). In one scenario, rather than waiting until the entire frame is encoded before sending the frame to the receiver, the transmitter sends an encoded left-eye portion to the receiver while the right-eye portion is being encoded. In another scenario, the frame is partitioned into a plurality of slices, and each slice is encoded and then sent to the receiver while the next slice is being encoded. In a further scenario, each slice is being encoded while the next slice is being rendered. In a still further scenario, each slice is prepared for presentation by the receiver while the next slice is being decoded by the receiver.
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公开(公告)号：US20210185334A1
公开(公告)日：2021-06-17
申请号：US16716122
申请日：2019-12-16
Applicant: ATI Technologies ULC
Inventor： Mikhail Mironov , Gennadiy Kolesnik , Pavel Siniavine
IPC: H04N19/436 , H04N19/174 , H04N19/42
Abstract: Systems, apparatuses, and methods for reducing latency for wireless virtual and augmented reality applications are disclosed. A virtual reality (VR) or augmented reality (AR) system includes a transmitter rendering, encoding, and sending video frames to a receiver coupled to a head-mounted display (HMD). In one scenario, rather than waiting until the entire frame is encoded before sending the frame to the receiver, the transmitter sends an encoded left-eye portion to the receiver while the right-eye portion is being encoded. In another scenario, the frame is partitioned into a plurality of slices, and each slice is encoded and then sent to the receiver while the next slice is being encoded. In a further scenario, each slice is being encoded while the next slice is being rendered. In a still further scenario, each slice is prepared for presentation by the receiver while the next slice is being decoded by the receiver.
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