Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2006-06-20
2006-06-20
Barron, Gilberto (Department: 2132)
Cryptography
Video cryptography
Video electric signal modification
C380S241000, C380S216000, C380S217000, C713S153000
Reexamination Certificate
active
07065213
ABSTRACT:
An apparatus in a digital network receives at least one input transport stream having a plurality of PID streams and outputs at least one transport streams. The apparatus demultiplexes the at least one input transport streams and determines whether to: decrypt packets included in the at least one input transport stream; statistically multiplex a group of PID streams included in the at least one input transport stream; and encrypt packets included in the at least one input transport stream.
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Bruce Schneier, Applied Cryptography, 1996, John Wiley & Sons Inc, pp. 294-295.
Boroczky, Statistical Multiplexing Using MPEG-2 Video Encoders, Jul. 1999, IBM, pp. 511-519.
Barron Gilberto
Lanier Benjamin E.
Scientific-Atlanta, Inc.
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