GL646USB Просмотр технического описания (PDF) - Unspecified

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GL646USB

Three-in-one Scanner Controller for USB and 1394

Unspecified 

GL646USB

15x31.25ns/pixel = 0.469us/pixel

(1). 600dpi : 1.517~2.533ms/line

(2). 1200dpi : 3.034~5.066ms/line

6.4. Fast scan for low DPI

Multiple CCD clocking rates allows speed up scan speed. You can speed up 2 times, 3 times or 4 times scanning

time for low resolution.

For example,600dpi scanner: if 75dpi speed up 4 times then 5.4ms/4=1.35ms/line. Scan speed is equal to 1.18s/page.

Chunky scan: You can speed up 2 times,3 times or 4 times scanning time.

Planar scan: 9 system clock/pixel: You can not speed up scanning time

12 system clock/pixel : You can speed up 2 times scanning time

15 system clock/pixel : You can speed up 2 times scanning time

6.5. Scanning Type

Support three line in(parallel ) for CCD, one line in for CCD or CIS, RGB line by turns in for CCD three types.

A. CCD

a. Three line in :

R

G

B

b. Line by line :

R

c. Line by turns :

G

B

R

G

B

B. CIS

a. color scan :

TG

LED R

LED G

LED B

b. gray scan:

Revision 1.3

-13-

Mar.22 2001

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