Digital video and audio data encryption, decryption and...

Details Digital video and audio data encryption, decryption and... Digital video and audio data encryption, decryption and...

2005-09-06

2005-09-06

Vu, Kim (Department: 2135)

Cryptography

Video cryptography

Video electric signal modification

C713S169000

Reexamination Certificate

active

06940977

ABSTRACT:
Device ID detecting means detects an ID of a device on another party. Next, it is checked whether the device ID is included in historical information stored in authentication histories storing means. If the device ID is included in the historical information, authenticating means performs authentication with authenticating means on another party. Thereafter, when an AV data transmission direction is provided from a user to command input means, the command is notified through command control means to AV data transmitting means which starts transmission of AV data.

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Kunzman, IEEE 1394 High Performance Serial Bus: The Digital Interface for ATV, 1995, pp. 406-407.
“Copy Protect Technologies in IEEE1394, Integration With Combined Use of Public Key/Common Key”; Nikkei Electronics; Mar. 23, 1998; pp. 47-53.

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