公开(公告)号：US10313722B1

公开(公告)日：2019-06-04

申请号：US15717373

申请日：2017-09-27

Applicant: Amazon Technologies, Inc.

Inventor： Ron Searl ,  Yongjun Wu

IPC: H04N21/24 ,  H04N21/242 ,  H04N21/233 ,  H04N21/234 ,  H04N21/2343 ,  H04N21/858 ,  H04N21/81

Abstract: Techniques are described for synchronizing audio content and video content when server-side fragment insertion techniques are used.

公开(公告)号：US10244266B1

公开(公告)日：2019-03-26

申请号：US15041590

申请日：2016-02-11

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu

IPC: H04B1/66 ,  H04N19/86 ,  H04N19/625 ,  H04N19/124 ,  H04N19/136 ,  H04N19/18 ,  H04N19/172 ,  H04N19/122 ,  H04N19/176

Abstract: Techniques are described for encoding noisy media content. A residual coefficient matrix representing differences in image content between a portion of a target image frame and portions of one or more reference frames can include noise within a high frequency band. Some of the noise can be removed by removing isolated residual coefficients under some estimated threshold. Additionally, the remaining noise can be reduced by attenuating their values selectively.

公开(公告)号：US10176622B1

公开(公告)日：2019-01-08

申请号：US15414477

申请日：2017-01-24

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Franklin Waggoner ,  Yongjun Wu

IPC: G06T15/10 ,  G06T19/00 ,  G06T17/20

Abstract: Techniques are described for low-pass filtering image data of virtual reality content before compression based on an understanding of the relationship of the image data to a cylindrical or polygonal projection space and the resulting compression of that image data when mapped to a playback projection space.

公开(公告)号：US20180234691A1

公开(公告)日：2018-08-16

申请号：US15954421

申请日：2018-04-16

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Charles Benjamin Franklin Waggoner ,  Amarsingh Buckthasingh Winston

IPC: H04N19/44 ,  H04N19/122 ,  H04N19/136 ,  H04N19/124 ,  H04N19/134 ,  H04N19/18 ,  H04N19/46 ,  H04N19/426 ,  H04N19/48 ,  H04N19/61 ,  H04N19/625 ,  H04N19/176 ,  H04N19/42

CPC classification number: H04N19/44 ,  H04N19/122 ,  H04N19/124 ,  H04N19/134 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/42 ,  H04N19/426 ,  H04N19/45 ,  H04N19/46 ,  H04N19/48 ,  H04N19/61 ,  H04N19/625

Abstract: Techniques are described for optimizing video decoder operations.

公开(公告)号：US20250039518A1

公开(公告)日：2025-01-30

申请号：US18915204

申请日：2024-10-14

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Sitaraman Ganapathy ,  Abhishek Kumar ,  Vasanthakumar Soundararajan ,  Kyle Alexander Woo

IPC: H04N21/84 ,  H04N21/81 ,  H04N21/858

Abstract: A system for utilizing media content reference point information to perform media content encoding, and supplemental content stitching and/or insertion. Media content can be encoded and packaged based on boundaries of the media content. The boundaries can be received from a third-party and/or generated via an automated process. Target boundaries can be selected based on accuracy levels associated with the received and/or generated boundaries. Supplemental content can be stitched and/or inserted into packaged media content based on audio and video content of the packaged media content being aligned.

公开(公告)号：US12149709B2

公开(公告)日：2024-11-19

申请号：US17854505

申请日：2022-06-30

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Sitaraman Ganapathy ,  Abhishek Kumar ,  Vasanthakumar Soundararajan ,  Kyle Alexander Woo

IPC: H04N19/167 ,  H04N19/172

Abstract: A system for utilizing media content reference point information to perform media content encoding, and supplemental content stitching and/or insertion. Media content can be encoded and packaged based on boundaries of the media content. The boundaries can be received from a third-party and/or generated via an automated process. Target boundaries can be selected based on accuracy levels associated with the received and/or generated boundaries. Supplemental content can be stitched and/or inserted into packaged media content based on audio and video content of the packaged media content being aligned.

公开(公告)号：US20240007651A1

公开(公告)日：2024-01-04

申请号：US17854505

申请日：2022-06-30

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Sitaraman Ganapathy ,  Abhishek Kumar ,  Vasanthakumar Soundararajan ,  Kyle Alexander Woo

IPC: H04N19/167 ,  H04N19/172

CPC classification number: H04N19/167 ,  H04N19/172

Abstract: A system for utilizing media content reference point information to perform media content encoding, and supplemental content stitching and/or insertion. Media content can be encoded and packaged based on boundaries of the media content. The boundaries can be received from a third-party and/or generated via an automated process. Target boundaries can be selected based on accuracy levels associated with the received and/or generated boundaries. Supplemental content can be stitched and/or inserted into packaged media content based on audio and video content of the packaged media content being aligned.

公开(公告)号：US11849173B1

公开(公告)日：2023-12-19

申请号：US17705989

申请日：2022-03-28

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  John F. X. Gaquin ,  Andrew Joseph Whittaker ,  Harshil Vikram Katira ,  Mairo Pedrini

IPC: H04N21/431 ,  H04N21/854 ,  H04N21/218 ,  H04N21/235 ,  H04N21/8549 ,  H04N21/2187

CPC classification number: H04N21/4312 ,  H04N21/2187 ,  H04N21/2353 ,  H04N21/8549

Abstract: Techniques for a quality of service optimization using a content adaptive slate image in a media player application are described. According to some embodiments, a computer-implemented method includes sending a request for a video from a client device to a content delivery service that is separate from the client device; receiving, by the client device from the content delivery service, a manifest of the video and an intro slate separate from the manifest and separate from the video; displaying the intro slate on the client device; loading an initial frame of the video identified by the manifest onto the client device concurrently with the displaying of the intro slate; and displaying the video on the client device after the displaying of the intro slate.

公开(公告)号：US11758206B1

公开(公告)日：2023-09-12

申请号：US17249781

申请日：2021-03-12

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Alex Zhang ,  Kyle Bradley Koceski ,  Matthew Scharr ,  Viriya Ratanasangpunth ,  Michael Kale

IPC: H04N21/2368 ,  H04N21/2365 ,  G10L19/16 ,  H04N21/234 ,  H04N21/2387 ,  H04N21/643 ,  H04N21/236

CPC classification number: H04N21/2365 ,  G10L19/167 ,  H04N21/2368 ,  H04N21/2387 ,  H04N21/23424 ,  H04N21/23611 ,  H04N21/643

Abstract: Methods and apparatus are described for encoding and delivering secondary content (e.g., advertisements) for insertion in primary content (e.g., live events, movies, and television shows). Secondary content is encoded such that the duration of any audio component of the secondary content is equal to or longer than the video component duration. When the secondary content is inserted, the overall duration of the inserted content is specified to be equal to the video component duration.

公开(公告)号：US11336935B1

公开(公告)日：2022-05-17

申请号：US17247065

申请日：2020-11-25

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Joshua Peter Ebenezer ,  Sriram Sethuraman ,  Hai Wei ,  Zongyi Liu

IPC: H04N21/242 ,  G06K9/00 ,  H04N21/2187 ,  H04N21/233 ,  H04N21/234 ,  H04N21/24

Abstract: Techniques are described for detecting desynchronization between an audio stream and a video stream.