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:
Dec. 19, 2017
Filed:
Oct. 08, 2013
Verimatrix, Inc., San Diego, CA (US);
Petr Peterka, San Diego, CA (US);
Niels Thorwirth, San Diego, CA (US);
Kamil Saykali, San Diego, CA (US);
Ali Hodjat, San Diego, CA (US);
Steve Christian, San Diego, CA (US);
Nikolai Keychenko, San Diego, CA (US);
Tom Pollard, San Diego, CA (US);
VERIMATRIX, INC., San Diego, CA (US);
Abstract
Managing access to digital content within a particular domain, including: receiving the digital content at a first client device; decrypting the received digital content at the first client device using a first key; transcoding the digital content to another format; re-encrypting the transcoded content using a second key, wherein the second key is obtained by one of: (1) directly from a server; or (2) indirectly by deriving it locally based on information received from the server; and transmitting the re-encrypted content to a second client device, wherein the second client device obtains the second key and decrypts the re-encrypted content at the second client device.