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參數(shù)資料
| 型號： | GL841 |
| 英文描述： | GL841 USB 2.0 2-in-1 Scanner Controller |
| 中文描述： | GL841的USB 2.0 2合1掃描儀控制器 |
| 文件頁數(shù)： | 19/50頁 |
| 文件大小： | 1688K |
| 代理商： | GL841 |
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GL841 USB 2.0 2-in-1 Scanner Controller
6.16
DRAM Timing
Support 4Mx1 , x2 Bits (256Kx16) or 16M Bits (1Mx16) for EDO DRAM ; 4M or 8M Bits for
SRAM ,as image buffer and calibration buffer timing.
You can select single or double DRAM for scanner. DRAM speed is 28ns and above for 30MHz
system clock,25ns and above for 40MHz system clock.
6.17 Horizontal Resolution Adjustable for DPI Function
A. Digital deletion type :
The resolution from 1 DPI to 2400 DPI , can be adjusted by 1 DPI increment by S/W.
B. Digital average type :
Support 1/2,1/3,1/4,1/5,1/6,1/8,1/10,1/12,1/15 digital average function.
For example, 1200dpi scanner: 600dpi, 400dpi, 300dpi, 240dpi, 200dpi,
150dpi, 120dpi, 100dpi, 80dpi average function.
C. Support stagger CCD :
Support 1/2,1/4 resolution , such as NEC , Toshiba and Sony stagger CCD.
6.18 Vertical Resolution Adjustable for DPI Function
The resolution of motor speed control is 16 bits, therefore we can control vertical resolution.
By one dpi increment, the resolution can be from 1 DPI to 4800DPI for 1200DPI scanner; and 1 DPI
to 9600 DPI for 2400dpi scanner.
Note: The resolution of quarter step can up to four times resolution.
6.19 Acceleration/Deceleration Five Table
The acceleration/deceleration slope tables are stored in DRAM, can be download by S/W.
The slope can be programmed by S/W for each table. Resolution is 16 bits pixel-time. The number of
slope steps is 1~512 steps. There are five tables for motor moving. Three tables are for scanning and
the others are for fast moving. The forward and backward steps can be programmed by S/W. The
resolution is 16 bits pixel-time. The number of slope steps is 1~512 steps. You can adjust any non-
linear curve.
Note: what is fast move Such as move back to go- home or move to scan window in any position .
(1). Two tables go to scan:
speed
Scanning position buffer full position scan finished
Go to scan window
A(4)
B(4)
C(1) D(1) E(1) F(3)
forward
time
G(5),K H(2) I(2) J(4)
Version 1.7
19
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GL842 | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:USB 2.0 2-in-1 Scanner Controller |
| GL843 | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:High Speed USB 2.0 With ADF 2-in-1 Scanner Controller |
| GL848 | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:High Speed USB 2.0 |
| GL850 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:USB 2.0 4-PORT HUB Controller |
| GL850A | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:USB 2.0 Low-Power HUB Controller |
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