Title:
DATA TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2004/091133
Kind Code:
A1
Abstract:
In an auxiliary data packet having an auxiliary data flag ADF in which a plurality of inhibit codes are formed as a string of a first combination, encrypted auxiliary information data DYAE/DCAE including no inhibit code is acquired according to auxiliary information data DYA/DCA including no inhibit code, and the auxiliary data flag ADF is replaced by an auxiliary data flag EADF as a string of inhibit codes of a second combination which is different from the first combination, thereby forming an encrypted auxiliary data packet having the auxiliary data flag EADF and containing encrypted auxiliary information data DYAE/DCAE and transmitting it.
Inventors:
ITO YUJIRO (JP)
SHIMOSATO TSUTOMU (JP)
SHIMOSATO TSUTOMU (JP)
Application Number:
PCT/JP2004/004966
Publication Date:
October 21, 2004
Filing Date:
April 06, 2004
Export Citation:
Assignee:
SONY CORP (JP)
ITO YUJIRO (JP)
SHIMOSATO TSUTOMU (JP)
ITO YUJIRO (JP)
SHIMOSATO TSUTOMU (JP)
International Classes:
G06F21/10; H04L9/36; G09C1/00; H04L47/43; H04N7/167; H04N21/233; H04N21/439; (IPC1-7): H04L9/14
Domestic Patent References:
| WO2003096608A1 | 2003-11-20 |
Foreign References:
| JPH0767140A | 1995-03-10 | |||
| JPH04179344A | 1992-06-26 | |||
| JPH10108217A | 1998-04-24 | |||
| EP0641130A1 | 1995-03-01 |
Other References:
"ADVANCED ENCRYPTION STANDARD (AES) (FIPS PUB 197", 26 November 2001, NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY
BTA S-002 1125/60 KOUSEIDO TEREBIJON HOUSHIKI SUTAJIO DHIZITARU EIZO KIKAKU, February 1992 (1992-02-01)
See also references of EP 1612989A4
BTA S-002 1125/60 KOUSEIDO TEREBIJON HOUSHIKI SUTAJIO DHIZITARU EIZO KIKAKU, February 1992 (1992-02-01)
See also references of EP 1612989A4
Attorney, Agent or Firm:
Kambara, Sadaaki (Saginuma Center Bldg. 2-6, Saginuma 3-chome, Miyamae-k, Kawasaki-shi Kanagawa, JP)
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