Information processing system, method, and apparatus, and...

Details Information processing system, method, and apparatus, and... Information processing system, method, and apparatus, and...

2007-04-30

2010-12-14

Song, Hosuk (Department: 2435)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C380S044000, C380S200000, C380S201000

Reexamination Certificate

active

07853802

ABSTRACT:
Disclosed herein is an information processing system including: a first information processing apparatus for transmitting a content including video and audio signals; and a second information processing apparatus for receiving the content. The first apparatus includes: a first key generator configured to generate a first key; a video encryptor configured to encrypt the video signal with the first key; an audio encryptor configured to encrypt the audio signal with the first key; and a transmitter configured to transmit the content including the encrypted video and audio signals. The second apparatus includes: a receiver configured to receive the content; a second key generator configured to generate a second key corresponding to the first key; a video decryptor configured to decrypt the encrypted video signal with the second key; and an audio decryptor configured to decrypt the encrypted audio signal with the second key.

REFERENCES:
patent: 7231043 (2007-06-01), Maeda
patent: 2004/0141614 (2004-07-01), Choi et al.
patent: WO 2004/105308 (2004-12-01), None
patent: WO 2005/029765 (2005-03-01), None
U.S. Appl. No. 11/738,669, filed Apr. 23, 2007, Soda et al.
“SMPTE Standard- for Television—HDTV Signal/Data Serial Interface”, SMPTE Technology Committee N 26 on File Management and Networking Technology, CD Revision 0, SMPTE 292M, Jan. 22, 2004, pp. 1-14.
“SMPTE Standard for Television—24-bit Digital Audio Format for SMPTE 292M Bit-Serial Interface”, Revision of ANSI/SMPTE 299M, 1997, pp. 1-23.

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