Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1996-12-02
1998-11-03
Vu, Kim Yen
Facsimile and static presentation processing
Facsimile
Picture signal generator
358494, 358497, H04N 104
Patent
active
058317490
ABSTRACT:
An optical scanning apparatus including a first optical unit and a second optical unit used to illuminate a document and direct the reflected light via a lens unit to the light sensing device; a movement mechanism used to move the first and second optical units in such a way that the optical path from the light source to the lens unit is always a fixed length. The movement mechanism includes a first driving unit having a first driving wheel, a first passive wheel, and a first transmission member coupling the first driving and passive wheels and affixed to the first optical unit; a second driving unit having a second driving wheel, a second passive wheel, and a second transmission member coupling the second driving and passive wheels and affixed to the second optical unit; and a driving motor. The diameter of the first driving wheel is of a predetermined multiple of that of the second driving wheel such that the optical path from the light source to the lens unit is always a fixed length.
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Chan Chien-Chin
Hwang Wei-Hsin
Lo Shih-Min
Tseng Kou-Lung
Lee Cheukfan
Umax Data Systems Inc.
Vu Kim Yen
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