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:
May. 03, 2016
Filed:
Feb. 17, 2012
Fritz Barnes, Alameda, CA (US);
Kent Karlsson, Berkeley, CA (US);
Cedric Fernandes, San Ramon, CA (US);
Fritz Barnes, Alameda, CA (US);
Kent Karlsson, Berkeley, CA (US);
Cedric Fernandes, San Ramon, CA (US);
MobiTV, Inc., Emeryville, CA (US);
Abstract
A media stream is delineated into multiple fragments. Different watermark variants of individual fragments are generated. Particular sequences of watermark variants are selected for particular clients and maintained in a user access database. Analyzing media streams allows determination of the sequences of watermark variants and identification of particular clients intended to receive the media streams. Fragments can continue to be cached efficiently and unique watermarks need not be generated for each individual client.