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:
Oct. 14, 2014
Filed:
May. 27, 2010
Panagiotis Thomas, Carlsbad, CA (US);
Can E. Acar, San Diego, CA (US);
Philip Michael Hawkes, Warrimoo, AU;
Bijan Ansari, San Diego, CA (US);
Panagiotis Thomas, Carlsbad, CA (US);
Can E. Acar, San Diego, CA (US);
Philip Michael Hawkes, Warrimoo, AU;
Bijan Ansari, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A method, apparatus, and/or system are provided for establishing trust between an accessory device and a host device, using a global key known to both the host device and the accessory device, so that content protection for subscriber-based mobile broadcast services is provided. A secure link may be established between the accessory device and the host device so that when the accessory device receives encrypted content via a secured forward link only network, the accessory device may decrypt the content at the forward link only stack. The content is then re-encrypted/re-secured using one or more derived encryption keys and then sent to the host device where it may be decrypted and played back. A global key, unique to the particular device type of the host device, is employed to ultimately derive the session encryption keys used to re-encrypt/re-secure the content conveyed from the accessory device to the host device.