Document reading apparatus and imaging apparatus...

Details Document reading apparatus and imaging apparatus... Document reading apparatus and imaging apparatus...

2008-05-20

2008-05-20

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S482000, C358S461000, C358S475000

Reexamination Certificate

active

10613998

ABSTRACT:
A document reading apparatus arranged to reduce inconsistencies in the output signals of its linear image sensor is provided. The document reading apparatus includes a linear image sensor, a light source control circuit, and a light source driver. The light source control circuit has a pulse generator that generates control pulses having a prescribed frequency and a pulse period that is shorter than an accumulation period of the linear image sensor, the accumulation period being indicated by a timing signal that represents the accumulation period and a non-accumulation period. The light source control circuit also has a synchronization output unit that outputs a prescribed number of trigger pulses in synchronization with the timing signal and the control pulses. The light source driver drives the light source in response to the trigger pulses.

REFERENCES:
patent: 5408113 (1995-04-01), Kanno et al.
patent: 6198349 (2001-03-01), Kanno et al.
patent: 6278490 (2001-08-01), Fukuda et al.
patent: 6426804 (2002-07-01), Kanno et al.
patent: 6564028 (2003-05-01), Kanno
patent: 6606046 (2003-08-01), Kanno
patent: 6785026 (2004-08-01), Terajima et al.
patent: 7071979 (2006-07-01), Ohtani et al.
patent: 3-198468 (1991-08-01), None
patent: 10-285338 (1998-10-01), None
patent: 2001-238052 (2001-08-01), None
patent: 2001-273996 (2001-10-01), None

Affiliated with

Also associated with

Rating

Document reading apparatus and imaging apparatus... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Document reading apparatus and imaging apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Document reading apparatus and imaging apparatus... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3935880