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PORTABLE ELECTRONIC DEVICE HAVING A ROTARY UNIT

  • US 20100176802A1
  • Filed: 08/11/2006
  • Published: 07/15/2010
  • Est. Priority Date: 08/16/2005
  • Status: Abandoned Application
First Claim
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1. A portable electronic device (20) comprising:

  • a housing (26);

    a rotary unit (1), which can be rotated relative to the housing; and

    detection means for detecting a rotational position of the rotary unit, said detection means comprising;

    a magnetic transmitter (10) attached to the rotary unit, for supplying a magnetic field,a magnetic receiver (11) attached to the housing, which receiver comprises a magnetic field sensor (103) and a magnetic flux guiding arrangement for increasing the magnetic field through the magnetic field sensor.

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