Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2005-09-13
2008-08-12
Sheikh, Ayaz (Department: 2131)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C713S165000, C713S166000, C713S194000, C726S026000, C726S031000, C726S032000, C726S033000, C380S201000, C380S203000, C380S231000, C380S237000, C705S051000, C705S052000, C705S057000
Reexamination Certificate
active
07412606
ABSTRACT:
Based on the detailed reproduction control information defining the reproduction control state of data to be transmitted, the CPU12of the data transmission apparatus creates a simplified reproduction control information roughly defining the reproduction control state of the data, stores the simplified reproduction control information of the data in the packet header of a data packet carrying the data, stores the detailed reproduction control information in the data, and transmits the simplified reproduction control information and the detailed reproduction control information as well as the data to the data receiving apparatus20through the transmission channel30from the input-output interface16. The CPU22of the data receiving apparatus20analyses the reproduction control state of the data contained in the data packet based on the simplified reproduction information and the detailed reproduction information contained in the data packet, and controls the reproduction of the data by the action of the media access part26according to the analysis result.
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Asano Tomoyuki
Hamada Ichiro
Komuro Teruyoshi
Osawa Yoshitomo
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Moorthy Aravind K
Sheikh Ayaz
Sony Corporation
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