Switched channel system

Details Switched channel system Switched channel system

1996-06-07

1998-09-22

Barron, Jr., Gilberto

Cryptography

Key management

Having particular key generator

380 15, 455 41, 455 42, 348 7, H04N 7173, H04N 7167

Patent

active

058126651

ABSTRACT:
A switching apparatus and method for routing RF scrambled signals. One of a plurality of scrambled RF television information signals is selected. A processor assigns an output carrier frequency. The selected scrambled television information signal is output by the switching apparatus on the assigned output carrier frequency.
The plurality of scrambled RF television information signals is carried on an RF bus in the switching apparatus. The bus may consist of a plurality of cables. An RF switch connects a tuner to one of the cables. An amplifier is connected to the tuner. An amplitude information signal is decoded off the RF bus and is used for controlling gain of the amplifier. An up converter applies the output of the amplifier onto the assigned carrier frequency.

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