JPS61198963A - Information reader - Google Patents

Abstract

PURPOSE:To set the attitude of an original simply and smoothly by applying mirror image conversion of information described on an original read by a read section so as to display it as a picture on a monitor section. CONSTITUTION:A CPU 11 inputs alternately information described by reading outputted from a main scanning section 30 during the read of an original 2 to line memories 71, 72 of a mirror image converting section 70 one by one line. Then every time one line of information is inputted, the one line information stored as above is read from the picture element inputting it finally in the reverse order as the input during the period of input for the next one-line from the other line memory. Then the information is outputted to a CRT monitor D connected to a host C via an interface 60 and displayed. Thus, the set attitude of the original is adjusted as it is according to the display state of a monitor section.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to an improvement in a stationary original type information reading device.

[Technical background of the invention]

In recent years, for example, as a type of facsimile machine, a so-called stationary original type information reading device has been developed, which reads the reading surface of the original by moving the reading section (scanner) side while the original is set on the reading stand. There is. This type of device does not need to transport the original into the device using transport rollers, etc., so there is no need to worry about damaging the original, and regardless of the format of the original, for example, books or pamphlets, it can be read as is. , very convenient.

By the way, this type of reading device is generally configured so that a document is set on a transparent reading table with the reading surface facing down, and the reading section scans the reading surface of the document from below. When setting a document on the reading stand, the operator cannot visually see the reading surface, which makes it very difficult to set the posture of the document, and also makes it easy to make setting errors.

For example, as shown in Figure 4<8), read the characters "B I+" written diagonally on the original 2 in an upright position.
However, the operator cannot see the characters, so when setting the document 2 on the reading table 1, the operator has to turn the document 2 over and over again to check the reading surface or rely on the ribs to ensure accurate reading. Posture setting is difficult and workability is poor.

In particular, recently, this type of reading device uses the feature of a stationary document type to specify the area to be read on the document set on the reading table using a cursor, and select the area to be read from the read information of the document using the cursor. A device with a so-called partial reading function has been proposed, in which information in a specified area is selectively input and transmitted, for example. This is extremely inconvenient in accurately setting the desired area.

Therefore, conventionally, when setting the position of the document, the written information on the document is read and this written information is transferred to the
By displaying an image on the display screen 3 of the display device as a monitor unit as shown in FIG. The idea is to make it possible.

[Problems with background technology]

However, conventional devices of this type do not read and scan the original 2.
Since the written information is displayed as is on the display device, for example, when the written information to be read ("'8") is tilted downward to the right as shown in FIG. 4(a), the display screen of the display device 3, it will be displayed tilted downward to the left as shown in FIG. 4 (1)). Therefore, when correcting the inclination of the object to be read, although the document 2 must actually be rotated to the left, it is difficult to make the correction while looking at the displayed image 4 on the display device. Therefore, the document 2 is easily rotated to the right, and as a result, it is difficult to set the position smoothly, resulting in very poor workability.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an information reading device that allows the setting posture of a document to be corrected according to the display state of a monitor unit, thereby allowing the posture of the document to be easily and smoothly set, thereby improving the ease of handling. purpose.

[Summary of the invention]

In order to achieve the above object, the present invention provides a mirror image conversion means for read image information, and the mirror image conversion means converts written information of a document read by a reading unit so that the mirror image relationship is reversed. This converted written information is displayed as an image on the monitor section, so that the displayed image of the set corresponds to the positional relationship of the document on the reading stand.

[Embodiments of the invention]

FIG. 1A shows the configuration of an information reading device in an embodiment of the present invention. A is connected via a cable B to a host C such as a facsimile machine main body. Note that D is a CRT monitor connected to the host C as a monitor unit.

Now, the information reading device A has the CPU 11, this CPLI
A control unit 10 consisting of a ROM 12 that stores the control program II and a RAM 13 that stores control data, etc.
and a reading area designation section 2 for inputting the desired reading area of the original 2.
0, a main scanning section 30 which has a line sensor 31 as a reading section and performs main scanning of the reading surface of the document 2 with this line sensor 31, and a sub-scanning section 30 which moves the line sensor 31 in a sub-scanning direction with respect to the document 2. A scanning unit 40, a mode setting unit 50 which is composed of a mode designation switch 51 and an input interface 52 and selectively designates a desired reading area designation mode and a normal reading mode, and each stores one line of reading description information. The mirror image conversion section 70 includes two line memories 71 and 72. Note that 60 is a device interface for exchanging information between the control unit 10 and the host C.

The reading area designation section 20 is configured to read the document 2 set on the reading table 1.
It has cursors 21 and 22 for specifying the desired reading area in each of the main scanning direction and the sub-scanning direction, and the output voltages of these cursors 21 and 22 are selected by the changeover switch 23 and individually sent to the A10 converter 24. This A/D converter 24
After digitizing each input interface 25
It is output to the control section 10 via the.

The main scanning section 30 has an input interface 32 for inputting the reading signal of the line sensor 31 to the control section 10 and an output interface 33 for inputting the reading control information from the control section 10. The input interface 32 is gate-controlled in accordance with the read control information that is output, so that out of the read signals read by the line sensor 31, only the signals corresponding to the desired read area specified by the read area specifying unit 20 are sent to the control unit 10. This is what you have to input.

The sub-scanning section 40 has a clock interface 41 that generates a synchronized clock for D1 scanning, and supplies the synchronized clock generated by this clock interface 41 to a motor drive circuit 42 to generate pulses. It drives the motor 43.

By the way, as shown in FIG. 2, the control section 10 includes a reading area determining means 14 that determines the position of the desired reading area based on voltage information from the reading area specifying section 20, and a mode specifying switch of the mode setting section 5o. mode determining means 15 for determining the operating mode from the setting state of 51, and the main scanning section 30 according to the determination results of these determining means
The reading control means 16 controls the sub-scanning section 40 to read and scan the original 2, and the mirror image conversion section 70 is used to convert the reading signal outputted from the line sensor 31 into a state in which the mirror image relationship is opposite. It has various functions consisting of a mirror image conversion control means 17 that converts the M image conversion means 17 into a mirror image, and a display control means 18 that outputs the read description information mirror image converted by the M image conversion means 17 to the CRT monitor D and displays it as an image. .

Here, the mirror image conversion control means 17 inputs the read signals obtained by the line sensor 31 line by line into the line memories 71, 72 of the mirror image converter 70, and finally outputs the read signals for one line. By reversely reading out the input pixels, the read written information is mirror-image converted.

Next, the operation of the lid configured as described above will be explained according to the operating procedure. First, the operator sets the mode designation switch 51 to the reading area designation mode side. Then, set the original 2 on the reading table 1 with the reading surface facing down, and set the desired reading area of the original 2, for example, as shown in FIG. 3(a) Pl, P2.
Then, as shown in P3 and P4, roughly specify with the cursors 21 and 22, and after this specifying operation, operate the reading start switch (not shown). Then, each cursor 21 above
．． The output voltage of 22 is digitized by the A/D converter 24 and introduced into the CPU 11 of the control unit 10, and the CPU 11 first determines the position of the desired reading area specified by the cursor 21, 22 from this voltage information. CPU1
1 issues an instruction to the main scanning section 30 and the sub-scanning section 40 to start reading scanning. Then, a synchronous clock is generated from the clock interface 41 of the sub-scanning section, and the pulse motor 43 operates in synchronization with this synchronous clock, whereby the line sensor 31 starts sub-scanning movement. At the same time, the line sensor 31 repeatedly performs reading main scanning on the original 2 at a predetermined speed, thereby reading information written on the original 2.

By the way, during this reading operation, the CPU 11 detects the current position of the line sensor 31 in the sub-scanning direction by inputting a synchronous clock generated from the clock interface 41 and counting this clock. Then, during a period when this detection position reaches the previously determined position of the desired reading area and the scanning position of the line sensor 31 in the main scanning direction is within the desired reading area, a gate control signal is generated and the main scanning is started. The input interface 32 of the unit 30 is placed in a gate open state, thereby allowing the read written information obtained by the line sensor 31 to pass through. As a result, only the written information in the desired reading area specified by the cursor 21 or 22 is cut out from the written information on the original document 2. Partial reading of the document 2 is thus performed. FIG. 3(b) shows the read description information of the document 2 in FIG. 3(a) obtained by this partial reading.

On the other hand, during the reading operation of the original 2, the CPU 11 alternately inputs the read written information outputted from the main scanning section 30 one line at a time to each line memory 71, 72 of the mirror image conversion section 7o. Then, every time you finish inputting information for one line, while inputting the next line in another line memory, the information for one line stored above is input from the last input pixel. are read out in reverse order, and this information is output to and displayed on the CRT monitor D connected to the host C via the device interface 60. Therefore, C.R.
For example, as shown in FIG. 3(C), the T monitor D displays read written information (FIG. 3(b)) obtained from the main scanning section 30.
The written information 4' having the opposite mirror image relationship is displayed as an image.

As a result, the operator visually checks the read description information 4' of the document 2 displayed as an image on the CRT monitor D to determine whether or not the character "B" to be read is tilted. Rotate the document 2 on 1 while looking at the display image 4' on the CRT monitor D and correct it so that the characters "811" are erected. At this time, the written information 4' displayed on the CRT monitor D is Since it is a mirror image of written information obtained by the line sensor 31, it corresponds to the orientation of the original 2 on the reading table 1. Therefore, if the original 2 is set in the state shown in FIG. 3(a), for example, The operator only has to rotate the document 2 on the reading table 1 to the left according to the written information 4' displayed on the CRT monitor D, as if rotating this display image, and this allows the tilt of the document 2 to be easily and smoothly adjusted. can be modified.

In addition, after completing the posture correction of this original [2], the operator made a C
While looking at the RT monitor D, accurately specify the positions of the cursors 21 and 22. Note that in the reading area specification mode, the main scanning section 30 and the sub-scanning section 40 automatically repeat the reading operation, so it is especially important to turn off the reading start switch during the operation of specifying the cursors 21 and 22 and while correcting the posture of the document 2. Even without any operation, the position of the desired reading area of document 2 changes sequentially on the CRT.
Displayed on monitor D. Therefore, the operator
The orientation of the document 2 and the position of the cursor 21, 22 can be specified while checking the state of the read written information displayed on the T-monitor D and the position of the desired reading area.

After completing the orientation correction of the document 2 and the designation of the desired area to be read, the operator switches the mode designation switch 51 to the normal reading operation mode, and then operates the reading start switch to start the reading operation. Then, the main scanning section 30 and the sub-scanning section 40 operate, and as a result, the cursor 21.
The written information of the desired reading area specified in 22 is selectively read. This read written information is then sent as is to the host C without being subjected to mirror image conversion by the mirror image conversion unit 70, where it is subjected to, for example, band compression processing, and then sent to the communication line.

In this embodiment, in the reading area designation mode, the written information on the document 2 obtained by the line sensor 31 is converted into a mirror image by the Mfs converter 70 and supplied to the CRT monitor D for image display. Therefore, the operator can correct the posture of the original document based on the image displayed on the CRT monitor D, and thereby the correction work can be carried out smoothly.

Note that the present invention is not limited to the above embodiments. For example, the mirror image transformation may be performed using a RAM provided in the control unit instead of using the line memory, or may be performed by coordinate transformation using an image memory.

Further, as the monitor section, other display devices such as a liquid crystal display may be used in addition to the CRT monitor. In addition, various modifications may be made to the mirror image conversion means, the application target of the apparatus, the means for specifying the desired reading area, the control procedure, etc. without departing from the gist of the present invention.

〔Effect of the invention〕

As described in detail above, according to the present invention, the written information of the document read by the reading section is converted into a mirror image and displayed as an image on the monitor section. This makes it possible to provide an information reading device that can easily and smoothly set the posture of a document and improve its handling.

[Brief Description of the Drawings] Figures 1 to 3 (a) to (C) are for explaining an information reading device in an embodiment of the present invention, and Figure 1 shows the configuration of the device. Block diagram, Figure 2 shows the CP of the control section.
Block diagram showing the functional configuration of U, Figures 3(a) to (C)
are used to explain the function, (a> is a schematic diagram showing an example of the state in which a document is set on the reading table, (b) is a schematic diagram showing an example of read written information, and (C) is a diagram after M image conversion. A schematic diagram showing an example of the display state of written information, FIG. 4 (a
) and (b) are schematic diagrams each showing the relationship between the document setting state and the display state on the monitor unit in a conventional apparatus. 1... Reading table, 2... Document, 3 Display screen of monitor section, 4'... Reading written information after mirror image conversion, A... Information reading device, B... Cable, C...・Host, D.
・CRT monitor, 10...control unit, 11...cpu
. 12...ROM, 13...RAM, 20...reading area designation section, 21.22...cursor, 23...changeover switch, 24...A/D converter, 25.32. 5
2... Input interface, 30... Main operation unit, 3
DESCRIPTION OF SYMBOLS 1... Line sensor, 33... Output interface, 40... Sub-scanning part, 41... Clock interface, 42... Motor drive circuit, 43... Pulse motor, 50... Mode setting Part, 51...Mode designation switch, 60...Device interface, 70...
Mirror image conversion section, 71.72... line memory. Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 3

Claims (2)

[Claims] (1) Place the original on the reading table with the scanning side facing down,
In the information reading device that reads and scans the reading surface of the document from the lower side of the reading table with a reading section, the information reading device includes a mirror image conversion means for converting written information of the document read by the reading section into a mirror image, An information reading device comprising: a monitor unit that displays the written information as an image. (2) It has a reading area specifying means for specifying the desired reading area of the manuscript, selectively obtains only written information of the desired reading area specified by the reading area specifying means, and mirror-images this written information. An information reading device according to claim (1), characterized in that an image is displayed on a monitor section.