JPH0356032B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to facsimile machines and similar devices, and more particularly to a device that automatically sets the required reading portion of a document. Conventionally, a control device for controlling the required reading portion of a document reads the required reading portion by detecting the start and end points of the required reading portion 2 of the document 1 using a marker 3 (or sensor) as shown in FIG. It was hot. Therefore, it is necessary to set the starting point and the ending point at two locations of the necessary reading portion using a marker or a sensor, and when setting the starting point and the ending point, there arises a problem that the starting point and the ending point must be set accurately.

An object of the present invention is to improve the above-mentioned problem, by easily setting the required reading portion of a document, and
Another object of the present invention is to provide an automatic document reading position control device that improves the reading accuracy of necessary reading portions.

According to the present invention, in an automatic document reading position control device that divides one document into a plurality of reading blocks in advance, selects blocks necessary for reading from the reading blocks, and causes the document reading means to read the selected blocks, the document settings are performed. A document reading device that moves from a reference position without reading the document, a distance measuring device that measures a moving distance of the document reading device from a set reference position, and a length of the reading block in the document reading direction is stored in advance. , a document reading block storage/control means that generates a position signal that automatically informs the position of the document reading device based on the stored content and the measurement result of the distance measuring device; and a marker arranged in the document reading direction from the set reference position. Then, when the marker is detected while the document reading means is moving, a reading start preparation signal is generated, and in response to the preparation signal, the reading block is started by the document reading means only while the position signal of the next reading block is being generated. A document reading position automatic control device including a reading control means for performing a reading operation is obtained.

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

FIG. 2 is a block diagram showing one embodiment of the present invention;
FIG. 3 is a plan view showing the relationship between the required reading part of the original and the original reading set position, and 1 is the original;
11 and 12 are markers or sensors, respectively; 13
is the required reading portion, and 17 is the document reading direction of the apparatus. First, the original reading block input section 9 divides the original 1 into predetermined reading blocks A, B, C, D, and E as shown in FIG. The data of and e are supplied to the document reading block storage/control section 7. Since the required reading part of the original 1 is the D block, the marker or sensor 11 is set at the starting point (leading edge) of the original 1, and the marker or sensor 12
Set at any position in block c. After the above settings, a document reading/scanning section (not shown) moves in the direction shown by arrow 14. However, reading scanning is not performed. Original reference point detection unit 4 shown in FIG.
detects that the reading scanning section has reached the leading edge of the document based on the marker or the output of the sensor 11. At the same time as this detection, the moving distance of the reading scanning unit (not shown) in the direction of the arrow 14 is counted by the moving distance counter 10, and the result is stored in the original reading block memory.
Input to control section 7. At this time, the original reading block storage/control section 7 compares the stored data of the block length a of the A block with the output data of the movement distance counter section 10, and if the output data of the counter section 10 is not sufficient for the above stored data, When the determination is made, an A block moving signal is sent to the document reading control section 8.
When the reading scanning section finishes moving over the block A to the original, the output signal of the counter section 10 is equal to the block length a.
It matches the written data. In this way, the reading block storage/control section 7 determines from the output of the counter section 10 that the reading scanning section is moving above the B, C, D or E block.
A block moving signal is output to the document reading control section 8. When the reading scanning section moves on the C block and approaches the detection position of the sensor 12, the document reading start detection section 5 outputs a reading start preparation signal based on the sensor output. Original reading control unit 8 receives this reading start preparation signal from original reading start detection unit 5
(At this time, the original reading block memory/control unit 7 to C
(also receiving the block moving signal) identifies and sets the next block, ie, D block, to the required reading section. When the reading scanning section approaches block D, a D block moving signal is inputted to the original reading control section 8 from the original reading block storage/control section 7. At this time, the original reading control section 8 controls the original reading section 6 so that the reading scanning section reads the original only during the period when the D block moving signal is being received. Therefore, the original reading section 6 can read only the block D of the necessary reading portion 13.

As explained above, according to the present invention, the sensor, marker, etc. can be set at any position in the block immediately before the required reading block, so that the required reading portion can be easily set. Also, regarding the reading accuracy of the necessary reading section, as explained in the above embodiment, the pre-divided reading blocks are stored in the document reading block storage section by electrical means, so that the necessary reading section with high accuracy can be obtained. I can do things.
In the embodiment, automatic control of the reading position in the case where the number of required reading portions is one has been described, but it is clear that it is also possible to obtain two or more required reading portions.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining a conventional method for setting the required reading portion, FIG. 2 is a block diagram showing an embodiment of the present invention, and FIG. 3 is a diagram showing the required reading portion of a document and the setting position according to the present invention. FIG. 3 is a plan view showing the relationship. 1... Manuscript, 2... Required reading part, 3, 4...
Marker or sensor, 4... Original reference point detection unit, 5... Original reading start detection unit, 6... Original reading unit, 7... Original reading block storage unit, 8... Original reading control unit, 9... Original Reading block input section, 1
0...Device reading section movement distance counter section, 11,
12... Marker or sensor, 13... Necessary reading portion, 14... Document reading direction of the device.

Claims (1)

[Claims] 1. In an automatic document reading position control device that divides one document into a plurality of reading blocks, selects the blocks necessary for reading from the reading blocks, and causes the document reading means to read the blocks, the device reads the blocks from the set standard position of the document. A document reading device that moves without reading the document, a distance measuring device that measures a moving distance of the document reading device from the reference position, and a length of the reading block in the document reading direction is stored in advance. a document reading block storage/control unit that generates a position signal that automatically informs the position of the document reading device based on the stored contents and the measurement result of the distance measuring device; and a marker arranged in the document reading direction from the reference position; When the marker is detected while the original reading means is moving, a reading start preparation signal is generated, and in response to the preparation signal, the reading block is read by the original reading means only while the position signal of the next reading block is being generated. An automatic document reading position control device including a reading control means for operating.