Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1984-03-27
1986-07-01
Buczinski, S. C.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358123, 358124, 358122, H04K 102, H04N 7167
Patent
active
045983127
ABSTRACT:
A secure cable television distribution system is disclosed for controlling subscriber access to preferred channel information in accordance with the teachings of the instant invention. Premium channel information to be selectively provided to a subscriber is tapped from the transmission medium, modulated, inverted and separated into discrete channel signals. The discrete channel signals are then selectively reintroduced to the transmission medium to effect cancellation of premium channel information which is not to be provided to a predetermined subscriber.
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D'Elio Carmine
Geissler Robert G.
Buczinski S. C.
Koltak Melissa
Ortech Electronics Inc.
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