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Subscriber site method and apparatus for decoding and selective interdiction of television channels

  • US 5,682,426 A
  • Filed: 04/09/1996
  • Issued: 10/28/1997
  • Est. Priority Date: 07/12/1993
  • Status: Expired due to Fees
First Claim
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1. Subscriber site apparatus useful in a system for distributing from a system headend 1) multiple channel signals defining an RF band, each channel signal having respective video synchronization components in time coincidence and 2) a common timing reference signal within said band synchronously related to said synchronization components, and wherein each of said channel signals is encoded in accordance with a common encoding rule, said subscriber site apparatus comprising:

  • a data receiver responsive to at least one of said channel signals for recovering said common timing reference signal; and

    a single broadband apparatus operable over said RF band and responsive to said recovered common timing reference signal for simultaneously decoding all of said channel signals in accordance with the inverse of said encoding rule to provide multiple decoded channel signals suitable for direct simultaneous application to a conventional television receiver.

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