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Portable electronic device, an operation panel thereof, and operation method of the portable electronic device

  • US 6,452,786 B1
  • Filed: 03/15/2000
  • Issued: 09/17/2002
  • Est. Priority Date: 03/18/1999
  • Status: Expired due to Term
First Claim
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1. A portable electronic device used as an ancillary machine for a video game device, the portable electronic device comprising:

  • a main unit including operation switches; and

    an operation panel having operation buttons by which a user presses said operation switches, said operation panel being rotatably mounted on said main unit;

    wherein said portable electronic device is connectable with the video game device via a connector exposed when said operation panel is in an open position thereof, and said operation panel is freely attachable to and detachable from said main unit so as to be replaced with another operation panel is desired.

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