Title:
DATA MULTIPLEXER, PROGRAM DISTRIBUTION SYSTEM, PROGRAM TRANSMISSION SYSTEM, TOLL BROADCAST SYSTEM, PROGRAM TRANSMISSION METHOD, LIMITED RECEIVING SYSTEM, AND DATA RECEIVER
Document Type and Number:
WIPO Patent Application WO/2000/003541
Kind Code:
A1
Abstract:
A data multiplexer, a program distribution system, a program transmission system, a toll broadcast system, a program transmission method, a limited receiving system, and a data receiver for transmitting transport stream packets of program data comprising a plurality of data elements having a transport stream packet structure, wherein a viewer can make a reception contract for each data element by generating a scramble key Ks corresponding to one or more data elements out of the data elements constituting one program and performing scrambling for each data element.
Inventors:
KUBOTA TATSUYA (JP)
WAKATSUKI NORIO (JP)
WAKATSUKI NORIO (JP)
Application Number:
PCT/JP1998/003127
Publication Date:
January 20, 2000
Filing Date:
July 13, 1998
Export Citation:
Assignee:
SONY CORP (JP)
KUBOTA TATSUYA (JP)
WAKATSUKI NORIO (JP)
KUBOTA TATSUYA (JP)
WAKATSUKI NORIO (JP)
International Classes:
H04N5/00; H04N7/16; H04N7/167; H04N7/24; H04N7/52; (IPC1-7): H04N7/16; H04K1/04; H04L12/18; H04N7/08; H04N7/167
Foreign References:
| JPH09511369A | 1997-11-11 | |||
| JPH08340541A | 1996-12-24 | |||
| JPH0951520A | 1997-02-18 | |||
| JPH09284763A | 1997-10-31 | |||
| JPH09312625A | 1997-12-02 | |||
| JPH10126371A | 1998-05-15 | |||
| JPH07202884A | 1995-08-04 | |||
| JPH08289277A | 1996-11-01 | |||
| JPH08340514A | 1996-12-24 | |||
| JPH099241A | 1997-01-10 | |||
| JPH0946672A | 1997-02-14 | |||
| JPH0946681A | 1997-02-14 | |||
| JPH09284762A | 1997-10-31 | |||
| JPH09307542A | 1997-11-28 | |||
| JPH09322161A | 1997-12-12 |
Attorney, Agent or Firm:
Tanabe, Shigemoto (5th floor 11-11-508, Jingumae 1-chome Shibuya-ku Tokyo, JP)
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