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Apparatus for infrared channel and method therefor

  • US 5,907,418 A
  • Filed: 08/09/1995
  • Issued: 05/25/1999
  • Est. Priority Date: 08/09/1995
  • Status: Expired due to Term
First Claim
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1. An infrared channel, comprising:

  • a transmit circuit including a transmitter processor and a light source;

    a receiver circuit including light detector and a receiver processor;

    the receiver processor coupled to analyze data detected by the light detector for predetermined time periods to detect presence of a precursor, and the receiver processor entering an IR sleep state for predetermined time intervals between predetermined time periods, the predetermined time intervals being substantially longer than the predetermined time periods; and

    the transmitter processor transmitting the precursor for a period of time at least as long as the predetermined time interval of the IR sleep state.

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