Broadcast receiving method and apparatus and information...

Details Broadcast receiving method and apparatus and information... Broadcast receiving method and apparatus and information...

2006-07-04

2006-07-04

Trammell, James P. (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S055000, C705S057000, C705S059000, C380S278000, C380S279000, C380S281000, C380S044000, C725S031000, C725S068000, C235S382000

Reexamination Certificate

active

07072865

ABSTRACT:
A broadcast receiving method comprises storing first control information in a storage device, the first control information containing information unique to a receiver and required for the receiver to select broadcasted and encrypted contents information, and receiving second control information with a receiver via a bi-directional communications channel, the second control information being for updating at least some contents of the first control information, updating the first control information in the storage device on the basis of the second control information, receiving broadcasted key information independent from the receiver and required to decrypt the contents information, and selecting and decrypting the encrypted contents information based on the key information and updated first control information.

REFERENCES:
patent: 6373952 (2002-10-01), Akiyama et al.
patent: 6463155 (2002-10-01), Akiyama et al.
patent: 6477649 (2002-11-01), Kambayashi et al.
patent: 11-252529 (1999-09-01), None
patent: 02002300158 (2002-10-01), None
Free Speech and Copyright in Cyberspace: Legal Issues Surrounding the Internet Online Libraries & Microcomputers, vol.: 13, No.: 3, p.: N/A, Mar. 1995.
Koichiro Akiyama, et al., “Pay Mobile-Audio Broadcasting System”, Toshiba Review, vol. 54, No. 7, (1999), pages 38-40.
U.S. Appl. No. 09/893,667, filed Jun. 29, 2001, Akiyama.
U.S. Appl. No. 10/858,377, filed Jun. 2, 2004, Akiyama et al.

Affiliated with

Also associated with

Rating

Broadcast receiving method and apparatus and information... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Broadcast receiving method and apparatus and information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Broadcast receiving method and apparatus and information... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3589254