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Electromagnetic digitizer sensor array

  • US 7,265,303 B2
  • Filed: 12/17/2003
  • Issued: 09/04/2007
  • Est. Priority Date: 12/17/2003
  • Status: Expired due to Fees
First Claim
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1. An electromagnetic digitizer sensor coupled to a processor, comprising:

  • a substrate;

    a first array of sensing traces each coupled between the processor and a first potential node, each sensing trace in the first array being selectively connectable to the processor and further being selectively connectable to the first potential node; and

    a second array of sensing traces each coupled between the processor and the first potential node, each sensing trace in the second array being selectively connectable to the processor and further being selectively connectable to the first potential node to form a loop between the first array of sensing traces and the second array of sensing traces,wherein the first array of sensing traces are each disposed at a first level of the substrate but not at a different second level of the substrate, andwherein the second array of sensing traces are each disposed at the second level of the substrate but not the first level.

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