Improved device of digital plate pointer system and method

Improved device of digital plate pointer system and method

  • CN 100,377,047 C
  • Filed: 10/23/2002
  • Issued: 03/26/2008
  • Est. Priority Date: 10/23/2002
  • Status: Active Grant
First Claim
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1. the method for communicating signals of a digiboard index system, this digiboard index system comprises a digiboard and a wireless indicator equipment, has plural groups electromagnetic induction antenna loop in this digiboard, have the resonant circuit of energy storage effect in this wireless indicator equipment, it is characterized in that:

  • this method comprises the following steps;

    (A) launch one first signal by the m on digiboard group antenna loop, and by the resonant circuit of the wireless indicator equipment emission one resonance signal after the energy storage that resonated, wherein m is a positive integer;

    (B) receive this resonance signal by (m-n) on digiboard group antenna loop, wherein n is an integer;

    (C) value that will be somebody'"'"'s turn to do (m-n) increases progressively one by one, and repeats aforesaid step (A) and (B), and (m-n+i) group antenna loop on digiboard receives this resonance signal, and wherein i is a positive integer;

    (D) according on this digiboard from (m-n) to (m-n+i) group resonance signal that antenna loop received, calculate wireless indicator equipment with respect to the coordinate position on the digiboard.

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