Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2006-09-26
2006-09-26
Nguyen, Hanh (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S412000, C348S729000, C725S094000
Reexamination Certificate
active
07113523
ABSTRACT:
In a data multiplexing device which multiplexes and transmits the transport stream packets of program data consisting of a plurality of data elements constructed in the form of transport stream packets, a program distribution system, a program transmission system, a pay broadcast system, a program transmission method, a conditional access system, and a data reception device according to the present invention, by generating a scramble key Ks corresponding to one or more data elements among the plurality of data elements constituting a program and by scrambling each data element, an audience can subscribe for each data element.
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Kubota Tatsuya
Wakatsuki Norio
Frommer William S.
Frommer & Lawrence & Haug LLP
Nguyen Hanh
Presson Thomas F.
Sony Corporation
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