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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11146611 B1

PDFFull Text
Date of Patent:
Oct. 12, 2021

Filed:

Mar. 23, 2017

Lip synchronization of audio and video signals for broadcast transmission

Applicant:

Huawei Technologies Co., Ltd., Shenzhen, CN;

Inventor:

Tao Sun, Shenzhen, CN;

Assignee:

HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;

Attorney:

Stein IP, LLC

Primary Examiner:

Ian N Moore

Assistant Examiner:

Rushil Parimal Sampat

Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04W 4/80 (2018.01); H04J 3/06 (2006.01); H04N 5/926 (2006.01); H04N 21/242 (2011.01); H04N 21/43 (2011.01); H04N 21/6437 (2011.01); H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
H04L 65/608 (2013.01); H04J 3/0673 (2013.01); H04J 3/0697 (2013.01); H04L 12/2874 (2013.01); H04L 69/28 (2013.01); H04N 5/9267 (2013.01); H04N 21/242 (2013.01); H04N 21/4307 (2013.01); H04N 21/6437 (2013.01); H04W 4/80 (2018.02);
Abstract

A multi-device lip synchronization method and a device. A secondary device receives an RTCP packet sent by a primary device. The secondary device corrects an STC of the secondary device based on a PCR in the RTCP packet, a program dock frequency of the primary device, a program dock frequency of the secondary device, and an RTCP delay. Then, the secondary device receives RTPs published by the primary device, splice the RTPs into a complete audio data frame, and store the audio data frame into a PCM buffer of the secondary device. The secondary device outputs the audio data frame in the PCM buffer.

Find Patent Forward Citations

Quick Actions:

Sun, Tao. (2021). Lip synchronization of audio and video signals for broadcast transmission (U.S. Patent No. 11146611). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11146611

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