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.:
Date of Patent:
Jan. 23, 2018
Filed:
Jun. 08, 2017
Sorenson Media, Inc., Draper, UT (US);
Juikun Chen, West Jordan, UT (US);
Sorenson Media, Inc, Draper, UT (US);
Abstract
A method includes receiving broadcast fingerprints indicative of broadcast frames of broadcast media streams being streamed to a plurality of channels by a broadcaster and receiving television (TV) fingerprints indicative of an ordered sequence of TV frames of a TV media stream at a corresponding media device. The method further includes matching the TV fingerprints with the broadcast fingerprints by determining a difference between respective broadcast fingerprints and corresponding TV fingerprints of the ordered sequence of TV frames. The matching includes populating a binary tree structure with respective differences. The method also includes detecting a channel change of the media device from a first channel to a second channel in response to locating a value indicative of the channel change in the binary tree structure within a threshold number of children nodes from a root node upon traversing down the binary tree structure.