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Magnetic field sensor

  • US 8,150,639 B2
  • Filed: 05/25/2007
  • Issued: 04/03/2012
  • Est. Priority Date: 06/21/2006
  • Status: Active Grant
First Claim
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1. A magnetic field sensor comprising:

  • a field detector, comprising an accelerometer, for detecting a magnetic field and for, in response to a field detection result, outputting an indication signal;

    a code generator for generating a code indicative for a magnetic environment;

    an environment detector comprising a code detector for detecting the code indicative for the magnetic environment and for, in response to a first environment detection result, outputting a first result signal and for, in response to a second environment detection result different from the first environment detection result, outputting a second result signal different from the first result signal; and

    a processor for, in response to the first result signal, performing a first process for the field detector and for, in response to the second result signal, performing a second process for the field detector, which second process is different from the first process.

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