Device for changing resolution of facsimile

Details Device for changing resolution of facsimile Device for changing resolution of facsimile

1997-06-30

1999-10-05

Grant, II, Jerome

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358419, 358423, 358414, H04N 136

Patent

active

059633417

ABSTRACT:
A device for changing a resolution of a facsimile includes a pinion gear rotated by the driving power of a driving motor, a first gear for rotating a driving roller to convey a document to a contact image sensor, a second gear for changing its driving path according to a rotation direction of the pinion gear; and a third gear interlocked or separated with the first gear according to the rotation direction of the second gear. This changes the resolution. The contact image sensor reads, codes, compresses, and transmits the document data.

REFERENCES:
patent: 3699249 (1972-10-01), Crane et al.
patent: 4262310 (1981-04-01), Vano
patent: 5062006 (1991-10-01), Miura
patent: 5239585 (1993-08-01), Takeuchi
patent: 5369509 (1994-11-01), Ko
patent: 5459588 (1995-10-01), McVicar et al.
patent: 5627585 (1997-05-01), Goldschmidt et al.

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