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Apparatus for recognizing pointing position in video display system with remote controller, and a method therefor

  • US 6,456,276 B1
  • Filed: 08/31/1999
  • Issued: 09/24/2002
  • Est. Priority Date: 08/31/1998
  • Status: Expired due to Fees
First Claim
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1. An apparatus for recognizing a pointing position in a video display system with a remote controller, comprising:

  • an optical receiving section for outputting different electric current values in accordance with intensities of incoming optical beams incoming from said remote controller;

    a switching section for receiving the different electric current values to output a selected electric current value in accordance with a selecting signal;

    an A/D converting section for receiving the selected electric current value from said switching section to convert it into a digital signal;

    a control section for outputting a selecting signal to said switching section if no interrupt signal is received from a relevant sensor of said optical sensing section, for computing a position value based on an indication by said remote controller (of a user) in accordance with digital signals incoming from said A/D converting section, for outputting an interrupt signal to notify the position value and a data input in accordance with a computed value, and for outputting a selection signal to said switching section; and

    a menu executing section for executing a user'"'"'s selected menu in accordance with the interrupt signal and the position value of said control section.

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