Lightweight dual-mode mobile scanner powered from a universal serial bus port

  • US 6,459,506 B1
  • Filed: 11/02/2000
  • Issued: 10/01/2002
  • Est. Priority Date: 09/16/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A mobile scanner comprisingan image sensing module comprising:

  • a one-dimensional image sensor array;

    a lens mounted in front of the image sensor array; and

    a first illumination source comprising three colored lights that are turned on independently and successively by an illumination control signal when a scanning document is opaque;

    a second illumination source comprising a colored light that is turned on by the illumination control signal when the scanning document is transparent;

    a motion mechanism working in synchronization with the image sensing module, the motion mechanism causing the scanning document illuminated by one of the first and the second illumination sources to pass through the lens so that the scanning document is imaged by the image sensor array; and

    a universal serial bus interface module coupling the image sensing module and the motion mechanism to a computing device and receiving power and system control signals therefrom.

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