Method and apparatus for optimally formatting media key...

Details Method and apparatus for optimally formatting media key... Method and apparatus for optimally formatting media key...

2006-03-14

2006-03-14

Morse, Gregory (Department: 2134)

Cryptography

Video cryptography

Copy protection or prevention

C380S277000

Reexamination Certificate

active

07013010

ABSTRACT:
A method and apparatus to format and process a Media Key Block so as to reduce latencies when processing the Media Key Block. A new record is generated containing header information for the records comprising the Media Key Block. This new record is read just once and allows a device to skip seeking and reading each record header individually. In addition, the records are adjusted so that individual records or individual fields within a record always fit within a single transfer unit.

REFERENCES:
patent: 5883958 (1999-03-01), Ishiguro et al.
patent: 6397311 (2002-05-01), Capps
patent: 6609116 (2003-08-01), Lotspiech

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