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:
Feb. 22, 2022

Filed:

Mar. 10, 2020
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Simon Goldrei, San Francisco, CA (US);

Steven E. Saunders, Cupertino, CA (US);

Roger N. Pantos, Cupertino, CA (US);

John Matienzo, Cupertino, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/173 (2011.01); H04N 21/2389 (2011.01); H04N 21/24 (2011.01); H04N 21/2187 (2011.01); H04N 21/845 (2011.01); H04N 21/234 (2011.01); H04N 21/233 (2011.01); H04N 21/8358 (2011.01);
U.S. Cl.
CPC ...
H04N 21/23892 (2013.01); H04N 21/2187 (2013.01); H04N 21/2335 (2013.01); H04N 21/23418 (2013.01); H04N 21/2402 (2013.01); H04N 21/8358 (2013.01); H04N 21/8456 (2013.01);
Abstract

Techniques are disclosed for measuring propagation delay of a media distribution system based on content output by rendering devices. An output from an output device of the media distribution system may be captured and a token may be detected from the captured content. A timecode may be derived from the detected token. The system's propagation delay may be determined from the derived timecode and may provide a basis to analyze system delays and other processing artifacts. In this manner, propagation artifacts may be estimated between multiple rendering devices that lack controls to synchronize their operation.


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