Portable electronic device

Details Portable electronic device Portable electronic device

2007-10-09

2007-10-09

Smith, R. Alexander (Department: 2859)

Geometrical instruments

Distance measuring

By flexible tape

C455S556100, C455S344000

Reexamination Certificate

active

11438371

ABSTRACT:
A portable electronic device is provided. The portable electronic device includes a casing, a display unit, a roller, an encoder and a controller. The casing has a casing surface. The display unit is disposed on the casing surface. The roller is rotatably disposed on the casing surface with a portion of the roller being exposed outside the casing. The roller is for adjusting the voice of the portable electronic device when the portable electronic device works at a voice-adjusting mode. The roller is for touching a surface and rotating on the surface to measure a length when the portable electronic device works at a length-measuring mode. The encoder disposed inside the casing is for outputting a pulse number. The controller receives the pulse number and determines a length value accordingly, and then controls the display unit to display the length value.

REFERENCES:
patent: 2002/0065104 (2002-05-01), Hess et al.
patent: 2003/0145480 (2003-08-01), Endo
patent: 2004/0041798 (2004-03-01), Kim
patent: 2006/0170785 (2006-08-01), Mashitani et al.
patent: 2007/0085993 (2007-04-01), Brown, Jr.
patent: 2006314018 (2006-11-01), None
patent: 2005122982 (2005-12-01), None

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