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Signal processing apparatus and methods

  • US RE47,867 E1
  • Filed: 08/03/2018
  • Issued: 02/18/2020
  • Est. Priority Date: 11/03/1981
  • Status: Active Grant
First Claim
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1. A method of gathering information on use of a digital control signal at a receiver station, said receiver station having a plurality of inputs, a an instruction based processor controlled by operating instructions, and at least one controllable device, said receiver station transferring said gathered information to a geographically remote station, said method comprising the steps of:

  • identifying a digital control signal;

    searching for said identified digital control signal in an input data stream received via electronic transmission comprising encrypted digitally encoded information based on said step of identifying;

    passing said identified digital control signal from said instruction based processor to said at least one controllable device, said digital control signal operating said at least one controllable device, wherein a way, channel, and at least one controllable device of said passing is chosen based on said step of searching;

    decrypting said encrypted digitally encoded information using at least one of a plurality of decryption techniques available at said receiver station, wherein a particular decryption technique is selected based on at least one signal received via electronic transmission from a location geographically remote from said receiver station, each said decryption technique for converting unintelligible digital information into machine readable, machine intelligible digital information;

    andcommunicating information on a use of said identified digital control signal, wherein said information on the use of said identified digital control signal comprises information on the passing of said identified digital control signal, from said receiver station to said geographically remote station.

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