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CONTROLLER USING DUAL-TONE MULTI-FREQUENCY (DTMF) TONES

  • US 20090323923A1
  • Filed: 04/03/2007
  • Published: 12/31/2009
  • Est. Priority Date: 04/24/2006
  • Status: Abandoned Application
First Claim
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1. A method, comprising:

  • receiving a first signal having a first set of characteristics associated with a first data-encoding scheme;

    converting the first signal into a second signal having a second set of characteristics associated with a second data-encoding scheme;

    transmitting the second signal to a controller of a communications device; and

    decoding the second signal to identify control instructions for the communications device, wherein the controller is adapted to decode signals having the second set of characteristics and not the first set of characteristics.

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