Device applied to scaling factor of horizontal scan of a...

Details Device applied to scaling factor of horizontal scan of a... Device applied to scaling factor of horizontal scan of a...

2006-11-07

2006-11-07

Tran, Douglas Q. (Department: 2626)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S412000, C358S471000, C358S475000, C358S001900, C358S001200, C382S298000, C382S299000

Reexamination Certificate

active

07133163

ABSTRACT:
The present invention relates to a device applied to scaling factor of horizontal scan of a scanner and a method thereof. The present invention lets signals be processed by a multiplexer, a shifter, and an adder to achieve the above function, or lets signals be processed by a plurality of shifters and a plurality of adders to achieve the above function. Because a divider or a ROM occupying a too large area in the prior art is not required, the present invention can effectively reduce the occupied area, increase the scanning speed, and enhance the image quality of a scanner.

REFERENCES:
patent: 4295167 (1981-10-01), Wiggins
patent: 5212570 (1993-05-01), Nacman
patent: 6490057 (2002-12-01), Sakaguchi
patent: 6580525 (2003-06-01), Iwakiri et al.

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