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Instruction device and communicating method

  • US 8,451,221 B2
  • Filed: 08/10/2009
  • Issued: 05/28/2013
  • Est. Priority Date: 08/11/2008
  • Status: Active Grant
First Claim
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1. An instruction device for communicating an instruction and a first reaction medium, comprising:

  • a sensing unit sensing a first instruction medium to generate a corresponding first signal; and

    a responding unit generating a geometric reference in response to the corresponding first signal for a decision whether a communication between the instruction and the first reaction medium shall be conducted according to a relationship between the geometric reference and the first reaction medium.

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