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Relaying key code signals through a remote control device

DC CAFC
  • US 8,004,389 B1
  • Filed: 08/04/2009
  • Issued: 08/23/2011
  • Est. Priority Date: 12/16/2003
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • (a) receiving a keystroke indicator signal from a remote control device, wherein the keystroke indicator signal indicates a key on said remote control device that a user has selected;

    (b) generating a key code within a key code generator device using the keystroke indicator signal, wherein said key code is part of a codeset that controls an electronic consumer device;

    (c) modulating said key code onto a carrier signal, thereby generating a key code signal;

    (d) transmitting said key code signal from said key code generator device; and

    (e) identifying said codeset by detecting electromagnetic interference on a power cord of said key code generator device.

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