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Two way communication using light links

  • US 7,193,661 B2
  • Filed: 09/27/2001
  • Issued: 03/20/2007
  • Est. Priority Date: 09/27/2001
  • Status: Active Grant
First Claim
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1. A media system comprising:

  • a video screen;

    a screen generator connected to the video screen which determines a channel that is currently being displayed on the video screen and which causes the video screen to flash to convey via a predetermined serial protocol channel identification information that functions to specify the channel that was determined to be currently being displayed on the video screen; and

    a remote control comprising;

    a memory having a favorite channel table;

    an optical receiver connected to receive the video screen flashes and convert them to an electrical signal;

    a controller connected to the optical receiver for decoding the electrical signal to thereby store in the favorite channel table of the memory the channel identification information; and

    programming response to actuation of a favorite channel key which retrieves from the favorite channel table of the memory the channel identification information and which uses the channel identification information to cause a transmission of a command adapted to tune an appliance to the channel corresponding to the channel identification information.

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