Apparatus for scanning documents in front of a document plate

Details Apparatus for scanning documents in front of a document plate Apparatus for scanning documents in front of a document plate

2000-09-13

2004-04-13

Williams, Kimberly (Department: 2626)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S474000, C358S497000, C358S487000, C359S894000, C399S211000, C355S066000, C355S067000

Reexamination Certificate

active

06721072

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to a scanning device. Specifically, an apparatus for scanning a document in front of a document plate.
1. Background Description
Please refer to FIG.
1
. There are shown a traditional flatbed scanner
10
and a monitor
12
. The scanner comprises a frame
14
, a transparent document glass
16
for placing a document
18
, a cover
19
for positioning on the document
18
, and a scanning module
20
which is assembled inside the frame
14
. The scanning module
20
is movable back and forth in order to scan the document
18
on the transparent document glass
16
. The scanner
10
is connected to the monitor
12
. Before the formal scanning processes are conducted, the scanning module
20
will perform a preview scan in order to determine the position of the document
18
. When the formal scanning processes are conducted, there is a performance bar
24
on the display
22
of the monitor, for showing the position of the scanning module
20
and indicating the relative position compared to the frame
14
.
During scanning the document, although the performance bar
24
can indicate the position of scanning module
20
. However, the performance bar
24
is unable to precisely indicate the position of the scanning module
20
because it takes time to process mass digital signals. If the user eager to know the precise position of the scanning module
20
, the user must open the cover
19
to observe the status of the scanner
10
. In this regard, it is inconvenient. Moreover, this kind of action of a user would interfere in the scanning processes.
Further, since the flatbed scanner requires a lot of area to be placed, it is therefore not efficient to use the flatbed scanner in a restricted office environment.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a scanning device for scanning a document in front of a document plate, rather than scanning the document via a transparent document glass.


REFERENCES:
patent: 4989099 (1991-01-01), Koshiyouji
patent: 5251072 (1993-10-01), Fukuoka et al.
patent: 5814809 (1998-09-01), Han
patent: 6233065 (2001-05-01), Lee
patent: 6304358 (2001-10-01), Lin et al.

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