Apparatus and method for broadcast services transmission and...

Details Apparatus and method for broadcast services transmission and... Apparatus and method for broadcast services transmission and...

2007-07-03

2007-07-03

Smithers, Matthew (Department: 2137)

Cryptography

Video cryptography

Video electric signal modification

C380S231000

Reexamination Certificate

active

10732757

ABSTRACT:
A method and apparatus for broadcast services transmission and reception. Reception of a broadcast multicast transmission is requested. Preliminary short time updated key information is transmitted or received prior to transmitting or receiving a broadcast subscription key for the requested broadcast services transmission. An encrypted broadcast services transmission is transmitted or received. The encrypted broadcast services transmission is encrypted or decrypted using the preliminary short time updated key information.

REFERENCES:
patent: 4323921 (1982-04-01), Guillou
patent: 4354201 (1982-10-01), Sechet et al.
patent: 5758068 (1998-05-01), Brandt et al.
patent: 6097816 (2000-08-01), Momiki et al.
patent: 6343280 (2002-01-01), Clark
patent: 2002/0001386 (2002-01-01), Akiyama
patent: 2002/0164025 (2002-11-01), Raiz et al.
patent: 2003/0039361 (2003-02-01), Hawkes et al.

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