Juan M Trujillo

US Patent:

8332630, Dec 11, 2012

Filed:

May 20, 2008

Appl. No.:

12/124103

Inventors:

Kitae Nahm - Irvine CA, US
Juan Carlos Trujillo - San Diego CA, US

Assignee:

Samsung Electronics Co., Ltd. - Suwon

International Classification:

H04L 29/06
G06F 7/04

US Classification:

713156, 726 26, 726 30, 725131

Abstract:

A method and system for authentication an electronic device is provided. One implementation involves obtaining a set of authentication parameters; prioritizing the authentication parameters into: express-parameters defining one or more express check points, and post-parameters defining one or more post-check points; authenticating each express check point; upon successful authentication of each express check point, commencing authentication of the post-check points; wherein the electronic device is authenticated when all the express check points and post-check points are successfully authenticated.

US Patent:

20100040229, Feb 18, 2010

Filed:

Aug 12, 2008

Appl. No.:

12/190503

Inventors:

Fei Xie - Irvine CA, US
Victor Liang - Irvine CA, US
Kitae Nahm - Kirkland WA, US
Juan Carlos Trujillo - San Diego CA, US

Assignee:

Samsung Electronics Co., Ltd. - Suwon City

International Classification:

H04N 7/167

US Classification:

380210

Abstract:

A method and system for tuning to a scrambled television channel is provided. One implementation involves receiving a channel selection from a user, tuning to the selected scrambled channel, checking a cache for Conditional Access (CA) descrambling information associated with the selected channel, and in case of a cache hit, then retrieving the descrambling information associated with the selected channel from the cache for descrambling the scrambled channel.