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.

Date of Patent:
Nov. 20, 2018

Filed:

Feb. 26, 2018
Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Jian-Rong Chen, Shinfield, GB;

Clive Henry Gillard, Alton, GB;

Jonathan James Stone, Reading, GB;

Michael Ludgate, Alresford, GB;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04L 29/06 (2006.01); H04N 21/234 (2011.01); H04N 21/236 (2011.01); H04N 21/44 (2011.01); H04N 21/6405 (2011.01); H04N 21/643 (2011.01);
U.S. Cl.
CPC ...
H04L 65/4076 (2013.01); H04L 65/605 (2013.01); H04L 65/80 (2013.01); H04N 21/23424 (2013.01); H04N 21/23602 (2013.01); H04N 21/44004 (2013.01); H04N 21/6405 (2013.01); H04N 21/64322 (2013.01);
Abstract

A packet-based video network including: two or more video data sources, each configured to launch video data packets onto the network as multicast data packets each associated with a multicast group identifier corresponding to that video data source; and a video data destination configured to receive and process video data from a video data source by joining a multicast group corresponding to that video data source, and execute a switching operation to switch from receiving video data from a first video data source to receiving video data from a second video data source by leaving a multicast group of the first video data source and joining a multicast group of the second video data source. The video data destination is configured to process video data corresponding to a video frame which, at end of a frame period, represents a most recently received video frame from the first video data source.


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