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:
Mar. 03, 2026

Filed:

Sep. 20, 2022
Applicant:

British Telecommunications Public Limited Company, London, GB;

Inventors:

Michael Nilsson, London, GB;

Stephen Appleby, London, GB;

Timothy Stevens, London, GB;

Rory Turnbull, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 21/6405 (2011.01); H04N 21/6371 (2011.01); H04N 21/647 (2011.01);
U.S. Cl.
CPC ...
H04N 21/6405 (2013.01); H04N 21/6371 (2013.01); H04N 21/64738 (2013.01);
Abstract

A method of managing content delivery to a client device via a proxy is described. The proxy starts off by receiving content requests from the client device over unicast, and fulfils those requests by forwarding them to a content server, and receiving that content before forwarding onto the client device. At some stage, the proxy determines that it may be possible to join a multicast channel to more efficiently receive the required content. However, before a switch is made, the proxy gathers multicast delivery timing data from the content server without joining the multicast group, and behavioural characteristics of the client device. The proxy uses this data to determine whether the client device would change the quality level of the content segments being requested.


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