JPH04358469A - Image reading system for image reader - Google Patents

Abstract

PURPOSE:To reduce the moving distance of a scanner and to shorten the processing time in an image reading state by setting optionally a home position, i.e., the reading start position of the scanner by software. CONSTITUTION:The position of e scanner 1 is controlled by a control part 10 with a software command, and the moved position of the scanner 1 is stored in a memory 10a of the part 10 as a home position. When it is desired to continuously read out the image, the home position is read out of the memory 10a and then the image of an image reading range 2a of an image reading range 3 of an image reader is read. In this case, the scanner 1 moves on a moving route 4e and the moving distance of the scanner is reduced in an image reading state.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading system using an image reader, and more particularly to software for controlling the home position of a scanner from which reading starts.

0002

2. Description of the Related Art An image reading method of a conventional image reader will be explained with reference to the drawings.

FIG. 3 is a diagram showing the operation of a scanner when reading an image using the image reading method of a conventional image reader.

FIG. 3 shows an image reading system of a conventional image reader, in which a scanner 1, an image reading range a2a
, an image reading range 3 of the image reader, a moving path 5 of the scanner, and a conventional control unit 11.

Here, as shown in FIG. 3, the scanner 1 reads an image in an image reading range a2a of an image reading range 3 of an image reader according to instructions from a conventional control unit 11, and each time it performs one scan, It returns to the home position (in this case, to the left), and this operation is uniquely controlled by the control unit 11. Then, the scanner 1 at this time moves along a scanner movement path 5.

[0006]

[Problems to be Solved by the Invention] As mentioned above, in the image reading method of the conventional image reader, when it is desired to read only a certain part of a document continuously, each time the scanner performs one scan, the There is a drawback that the total reading time becomes longer because the method returns to the position.

An object of the present invention is to eliminate the above-mentioned drawbacks by setting the home position of the image reader using software commands, to shorten the moving distance of the scanner during image reading, and to set the home position of the image reader using software commands. To provide an image reading method for an image reader that can shorten the total processing time when only one image is read continuously.

[0008]

[Means for Solving the Problems] In the image reading method of the image reader of the first invention, a home position, which is a reading start position of the scanner, is arbitrarily set by software.

In the image reading method of the image reader of the second invention, in the image reading method of the image reader of the first invention, the home position is stored in the memory, and when processing is performed continuously, the home position is read from the memory. are read and processed continuously.

In the image reading method of the image reader of the third invention, when reading a plurality of images in the image reading method of the image reader of the first invention, the home positions of the plurality of images are stored in the memory, and the software Each home position is read out from memory in the order specified by , and multiple images are read out.

[0011]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing the operation of the scanner when reading an image using the image reading method according to the first and second embodiments of the present invention, and FIG. 1(a) is a diagram showing the state before setting the home position. (b) is a diagram showing after setting the home position,
FIG. 1(c) is a diagram showing the image reading time.

FIG. 1 shows an image reading system according to an embodiment of the first and second inventions, in which a scanner 1, an image reading range a
2a, an image reading range 3 of the image reader, a moving path a4a of the scanner, a control unit 10, and a memory 10a.

[0014] Here, the scanner 1 first scans the image shown in FIG. 1(a).
The control unit 1 is located at the position of
0, move to the position shown in FIG. 1(b), store that position in the memory 10a in the control unit 10 as the home position, and read out the image continuously.
As shown in FIG. 1(c), the home position is read from the memory 10a, and the image in the image reading range a2a of the image reading range 3 of the image reader is read. Then, the scanner 1 at this time moves along the scanner movement path a4a, and the movement distance of the scanner 1 during image reading is shortened compared to the movement path 5 of the conventional scanner shown in FIG.

FIG. 2 is a diagram showing the operation of the scanner when reading an image using the image reading method according to an embodiment of the third invention, FIG. 2(a) is a diagram showing the state before setting the home position, and FIG. FIG. 2C is a diagram showing the state after setting the first home position, FIG. 2C is a diagram showing the state after setting the second home position, and FIG. 2D is a diagram showing the state when reading an image.

FIG. 2 shows an image reading system according to an embodiment of the third invention, in which a scanner 1, an image reading range b2b,
The image reading range 3 of the image reader, the moving path b4b of the scanner, the control unit 10, and the memory 10a are shown.

[0017] First, the scanner 1 scans the image shown in FIG. 2(a).
The control unit 1 is located at the position of
0, moves to the position of the first image in FIG. 2(b), stores that position as the first home position in the memory 10a in the control unit 10, and then moves to the position of the first image in FIG. 2(c). It moves to the position of the second image, and stores that position in the memory 10a in the control unit 10 as the second home position. If there are multiple images, the image is moved to a third home position or the like, and each home position is stored in the memory 10a.

Then, as shown in FIG. 2(d), the control unit 10 reads the home position of each image from the memory 10a in a necessary order defined by the software, and reads the image from that position. In this case, if a certain image is to be read continuously, the images are read continuously at the home position of the image.

[0019]

As explained above, the image reading method of the present invention shortens the moving distance of the scanner during image reading by setting the home position of the image reader using a software command, When reading only the part that has been
This has the effect of shortening the total processing time.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the operation of a scanner when reading an image using an image reading method according to an embodiment of the first and second inventions. FIG. 1(a) is a diagram showing the state before the home position is set. FIG. 1(b) is a diagram showing the state after the home position is set. FIG. 1(c) is a diagram showing the image reading time.

FIG. 2 is a diagram showing the operation of a scanner when reading an image using an image reading method according to an embodiment of the third invention. FIG. 2(a) is a diagram showing the state before the home position is set. FIG. 2(b) is a diagram showing the state after the first home position is set. FIG. 2(c) is a diagram showing the state after the second home position is set. FIG. 2(d) is a diagram showing the image reading time.

FIG. 3 is a diagram showing the operation of a scanner when reading an image using a conventional image reading method.

[Explanation of symbols]

1 Scanner 2a Image reading range a 2b Image reading range b 3 Image reader image reading range 4a
Scanner movement path a 4b Scanner movement path b 5 Conventional scanner movement path 10 Control section 10a Memory 11 Conventional control section

Claims (3)

[Claims] 1. An image reading method for an image reader, characterized in that a home position, which is a reading start position of the scanner, is arbitrarily set by software. 2. In the image reading method of the image reader according to claim 1, when the home position is stored in a memory and processed continuously, the home position is read out from the memory and processed continuously. An image reading method for image readers featuring: 3. In the image reading method of an image reader according to claim 1, when reading a plurality of images, the home positions of the plurality of images are stored in a memory, and each image is read from the memory in an order defined by software. An image reading method for an image reader, characterized in that a home position is read and the plurality of images are read.