JPH0332276A - Picture input display device and image scanner for same - Google Patents

Abstract

PURPOSE:To enable the input and display of a picture larger than the read width of an image sensor by processing picture information obtained by an image scanner based on the information such as coordinate values, etc., by a tablet. CONSTITUTION:When the surface of a slip, etc., fixed on the tablet is manually scanned by an image scanner 2, the picture drawn on the slip, etc., is converted into the picture information. In such a case, the coordinate values, etc., to position instructing parts 24 and 25 of the image scanner 2 are simultaneously outputted from the tablet. Thus, the coordinate values to the picture information are determined to one coordinate axis. Accordingly, when the surface of the slip, etc., is successively scanned manually by the image scanner 2 while changing positions, all the pictures drawn on the slip, etc., are inputted and processed as the picture information corresponding to one coordinate axis. Then, they are displayed on a display device 6. Thus, even when the picture is larger than the read width of the image scanner 2, the picture can be inputted as the picture information for one picture as it is, stored, further processed and displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an image input display device and an image scanner used in this device.

(Prior Art) In recent years, with the spread of personal computers, word processors, etc., hand-held image scanners that can input images such as characters and figures already drawn on forms by manual scanning have become easier to use. .

(Problem to be Solved by the Invention) However, the size of an image that can be read by the image scanner is determined by the reading width of the image sensor built into the image scanner, and it is not possible to directly input an image larger than the reading width. The problem was that it couldn't be done.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide an image input/display device capable of inputting and displaying an image larger than the reading width of an image sensor, and an image scanner suitable for this device.

(Means for Solving the Problem) In order to achieve the above object, the present invention provides a tablet that detects the position etc. of a position indicating section operated within a predetermined coordinate input range and outputs the coordinate values etc. an image scanner having a reading width of An image input/display device configured to process an image, and an image input/display device in which an input section of a tablet and a display section of a display device are stacked and integrated so that the input position and display position thereof coincide with each other. an image scanner including an image sensor having a predetermined reading width, a position indicating section that provides information indicating at least the position of a predetermined tablet; an image sensor having a predetermined reading width; The present invention proposes an image scanner equipped with two or more position indicating units that provide at least information indicating the position of a tablet.

(Function) According to the image input/display device of the present invention, when a document, etc. fixed to the tablet "2" is manually scanned with an image scanner, an image drawn by (1°11) on the document, etc. is converted into image information. At this time, the coordinate values, etc. for the position indicating section of the image scanner are simultaneously output from the tablet.Therefore, the coordinate values for the image information are determined corresponding to the - coordinate axis. By changing the position of the top and manually scanning it one after another with an image scanner, all the images drawn on the form, etc. are inputted and processed as image information corresponding to the - coordinate axis, and displayed on the display device.

Further, according to the image input display device of the present invention, an image input by manually scanning an image scanner is displayed in the same size directly below the scanning position.

Further, according to the image scanner of the present invention, an image drawn on a form or the like is converted into image information by manual scanning, and information indicating the position of one tablet is provided to a predetermined tablet.

Further, according to the image scanner of the present invention, an image drawn on a form or the like is converted into image information by manual scanning, and information indicating two or more positions is provided to a predetermined tablet.

(Embodiment) FIG. 1 shows an embodiment of the image input display device and its image scanner of the present invention, and in the figure, 1 is the device main body;
2 is an image scanner, 3 is a stylus pen, and 4 is a memory card.

The main body 1 of the device includes a housing 5 that can be folded in half, and a display section 6 is provided on one inner surface 5a, and a tablet input section 7, keyboard 8, and paper holding clip 9 are provided on the other inner surface 5b. is provided. Furthermore, the - of the device main body 1
An insertion slot 10 for the memory card 4 is provided on the side surface of the memory card 4, and a connection cord 11 for the image scanner 2 is detachably attached via a connector (not shown).

FIG. 2 shows the main structure of the device main body 1. In the figure,
12 is a display control circuit, 13 is a tablet/control circuit, 1
4 is an image scanner interface, 15 is a card reader/writer, and 16 is a read-only memory (ROM).
, 17 is random access memory (RAM), 1.8
is image memory, 19 is microprocessor (CPU)
1.20 is a battery, and 21 is a power supply circuit. In the above configuration, all circuits except the tablet input section 7 and the tablet control circuit 13 that controls the tablet input section 7 are well-known circuits.

FIG. 3 shows a specific configuration of the image scanner 2, in which 22 is a housing, 23 is an image sensor, 24.
25 is a position indicator, 26 is a switch, and 27 is a rubber roller.

The casing 22 has a generally prismatic shape as a whole, and an opening 22a is provided in the bottom surface of the casing 22. The image sensor 23 is CO
This is a well-known close-contact type device in which a large number of photoelectric conversion elements such as D and the like are arranged in a -dimensional array, and light sources such as LEDs are arranged adjacent to each other. The image sensor 23 is housed in the housing 22 so that its reading surface faces the opening 22a.

The position indicating units 24 and 25 provide information indicating the position, etc., to the tablet made up of the tablet input unit 7 and the tablet control circuit 13, respectively.

Specifically, as shown in the sixth example, the position indicating section 24 consists of a coil 28 and two capacitors, and the position indicating section 25 consists of a coil 30 and a capacitor 31. The coil 28 and the two capacitors are the switch 2
The coil 30 and the capacitor 31 (and the switch 2
They are connected in series to each other via 6 other contacts 33.

Further, the switch 26 is provided on one side of the housing 22, and its contacts 32 and 33 are turned on or off in conjunction with each other.

When the switch 26 is turned on and the contacts 32 and 33 of the position indicating parts 24 and 25 are turned on, each of the position indicating parts 24 and 25 constitutes a well-known resonance (tuning) circuit. Note that the inductance of the coil 28 and the capacitance values of the two capacitors are set to values such that the resonance (tuning) frequency thereof becomes a predetermined frequency fOl, for example, 600 kHz. Also,
The inductance of the coil 30 and the capacitance of the capacitor 31 have a tuning frequency of a predetermined frequency fl, for example 550.
It is set to a value of kHz.

The position indicating parts 24 and 25 have their coils 28 and 30
The housing 22 is arranged such that the approximate center of the image sensor 23 is located at predetermined positions on both sides of the reading line of the image sensor 23.
It is stored in. Note that the above position is the position detected by the tablet).

The rubber roller 27 is used to move the image scanner 2 almost in a straight line, and a portion of the rubber roller 27 in the circumferential direction is provided with the opening 22.
It is attached to the casing 22 so that it protrudes from a and its axis is parallel to the reading line of the image sensor 23.

Figure 4 shows a stylus pen (hereinafter referred to as input pen) 3
This figure shows the detailed structure of a pen shaft 34 made of a non-metallic material such as synthetic resin, and a core body 35 of a ballpoint pen or the like from the tip thereof, and a transparent structure in which the core body 35 can be slidably accommodated. A ferrite core 36 with a hole, a coil spring 37, a switch 38, and a coil 39 wound around the ferrite core 36. A tuning circuit 42 consisting of capacitors 40 and 41 is integrated and built in, and a cap 43 is attached to the rear end.

The three coils and the capacitor 40 are connected in series with each other to form a well-known resonant circuit, and the inductance of the coil 39 and the capacitance value of the capacitor 40 are such that the resonant frequency is a predetermined frequency f2, for example, 5001c.
The value is set to Hz. In addition, capacitor 41
is connected in parallel to both ends of a capacitor 40 via a switch 38, and its capacitance value changes the tuning frequency in the above-mentioned tuning circuit to a predetermined frequency f3, for example 450kHz, when the switch 38 is turned on. set to the value.

The switch 38 can be operated by holding the pen shaft 34 with your hand or the like and pressing the tip of the core 35 against the top surface of the tablet input section 7 (or a form fixed thereon). When pushed in, the rear end releases the coil spring 37.
It is turned on by being pressed through the switch. In addition,
When a figure already drawn on a form is to be traced and input, a simple rod made of plastic or the like is used as the core body 35.

FIG. 5 shows details of the loop coil group 7X in the X direction and the loop coil group 7y in the Y direction, which constitute the tablet input section 7. The loop coil group 7x in the X direction includes a large number of loop coils 7x-17x-2, for example, 48 loop coils 7x-17x-2, arranged parallel to each other and overlapping each other along the X-direction.
...7x48, and the Y-direction loop coil group 7y is a large number of 48 loop coils 7 arranged parallel to and overlapping each other along the Y-direction.
Consisting of y-1, 7y-2,...7Y-48,
The loop coil group 7X in the X direction and the loop coil 7 in the Y direction
y and are superimposed closely together (however, in the drawing, the two are drawn apart for ease of understanding). Although each loop coil is configured with one turn here, it may be configured with multiple turns as necessary.

FIG. 6 shows the position indicating section 24 of the image scanner 2 mentioned above.
．． 25 shows the details of the tablet control circuit 13. In the figure, 44 is a control circuit, 45 is a signal generation circuit, and 4 is a control circuit.
6.47 is a selection circuit, 48.49 is a transmission/reception switching circuit, 50
51 is an XY switching circuit, 51 is a reception timing switching circuit, and 52 is an XY switching circuit.
is a band pass filter (BPF), 53 is a detector, 54 is a low pass filter (LPF), 55.56 is a drive circuit, 57
58 is an amplifier, and 59 is an inverter.

Next, the operation of the device will be explained along with its configuration.
First, the manner in which radio waves are transmitted and received between the image scanner 2 and the tablet input section 7, and the signals obtained at this time will be explained with reference to FIG.

The control circuit 44 is composed of a well-known microprocessor, etc., and transmits a frequency switching signal (quaternary counter data) p to the signal generation circuit 45 according to the processing flowchart shown in FIG.
i, p2 and a timing signal (start pulse) p3 for starting the operation, and also controls the switching of each loop coil of the tablet/soto input section 7 via the selection circuits 46 and 47, and also controls the switching of each loop coil of the tablet/soto input section 7. The timing switching circuit 51 controls the switching of the position detection direction, and also converts the output value from the low-pass filter 54 into analog/digital (A/D) and performs predetermined arithmetic processing to output the image scanner 2. (or the input pen 3), and then sends the vJ change signal p1゜p2 of the frequency at the time when the coordinate value was found to the CPU 1-9 of the main body of the device.
Send to.

The signal generation circuit 45 generates predetermined frequencies fo and fl.

f2. Square wave signal generators 60, 61, 62, 63 and 64 generate f3 and fk square wave signals, respectively.
, a multiplexer 65.

The rectangular wave signal with the frequencies fO to f3 is the switching signal pl.
, p2 is input to a multiplexer 65 whose switching is controlled by the switching signal pl.

When p2 is "00", a signal with frequency fO is output, when it is "01", a signal with frequency fl is output, and when p2 is "]fO, a signal with frequency 12 is output, and,
When it is "11", a signal of frequency f3 is output as a rectangular wave signal A. The rectangular wave signal A is converted into a sine wave signal by a low-pass filter (not shown), and roughly
The signal is sent to either the drive circuit 55 or 56 via the Y switching circuit 50.

Further, a rectangular wave signal with a frequency fk, for example, 18.75 kHz, is sent to the transmission/reception switching circuits 48 and 49 as a transmission/reception switching signal B, is inverted via an inverter 59, and is sent to the reception timing switching circuit 51 as a reception timing signal C. Sent out. Note that the rectangular wave signal generator 64 is reset by the start pulse 3 2 .

The selection circuit 46 selects - from the loop coil group 7X in the X direction.
The selection circuit 47 sequentially selects one loop coil from the loop coil group 7y in the Y direction, and each operates according to information from the control circuit 44.

The transmission/reception switching circuit 48 alternately connects the selected negative loop coil in the X direction to the drive circuit 55 and the amplifier 57, and the transmission/reception switching circuit 49 connects the selected negative loop coil in the Y direction to the drive circuit 55 and the amplifier 57. are alternately connected to the drive circuit 56 and the magnifier 58, and these operate according to the transmission/reception switching signal B.

Now, "00" is sent from the control circuit 44 as switching signals pi and p2 along with the start pulse 3 to the signal generating circuit 45, and information for selecting the X direction is input to the XY switching circuit 50 and the reception timing switching circuit 5. Assuming that the sine wave signal A of frequency fO is sent to the drive circuit 55, converted into a balanced signal, and further sent to the transmission/reception switching circuit 48, which is driven based on the transmission/reception switching signal B. In order to switch and connect either the circuit 55 or the amplifier 57, the signal output from the transmission/reception switching circuit 48 to the selection circuit 46 has a time T (=1./24k), which is approximately 2
This is a signal that outputs or does not output a 600kHz signal every 7μsec.

The signal is sent to the tablet input section 7 via the selection circuit 46.
− loop coil 7x-i (i=1.2.・
...48), but the lou coil 7x-
i generates radio waves based on the signal.

At this time, when the image scanner 2 is placed at a predetermined position on the tablet input section 7 and its switch 26 is turned on, the radio waves are transmitted to the position indicating section having a tuned frequency of frequency fO, that is, the coil 24. 28 is excited to cause the circuit to generate an induced voltage E in synchronization with the signal.

Thereafter, when the signal enters a no-signal period, that is, a reception period, and the loop coil 7x-i is switched to the transducer 57 side, the radio wave from the loop coil 7X-1 immediately disappears, but the induced voltage E gradually attenuates in accordance with the loss within the position indicating section 24.

On the other hand, the current flowing through the position indicating section 24 based on the induced voltage E causes the coil 28 to emit radio waves. Since the radio wave reversely excites the loop coil 7x-i connected to the amplifier 57, an induced voltage due to the radio wave from the coil 28 is generated in the loop coil 7x-i. The induced voltage is sent from the transmission/reception switching circuit 48 to the amplifier 57 only during the reception period, is amplified, becomes a reception signal F, and is further sent to the reception timing switching circuit 51.

The reception timing switching circuit 51 receives either the selection information in the X direction or the selection information in the Y direction, here the selection information in the X direction and the reception timing signal C, and the period when the signal C is at a high (H) level is input. outputs the received signal 'F and goes low (
Since nothing is output during the L) level period, the signal G (substantially the same as the received signal F) is obtained as the output.

1') The signal G is sent to the subtraction filter 52, but since the bandpass filter 52 is a filter that includes frequencies fO to f3 in its pass band, several signals G are input and converge, and one of them is A signal H having an amplitude corresponding to the energy of the frequency fO to f3 components is sent to the detector 53.

The signal H input to the detector 53 is detected and the signal I
After that, it is converted into a DC signal J having a voltage value, for example, VX, by a low-pass filter 54 whose cut-off frequency is sufficiently lower than the frequencies fO to f3, and sent to the control circuit 44.

The voltage value VX of the signal J is a value that depends on the distance between the coil 28 of the position indicating section 24 of the image scanner 2 and the loop coil 7x-i, and here is a value that is approximately inversely proportional to the fourth power of the distance. Since the voltage value Vx of the image scanner 2 changes when the coil 7x-i is switched, the control circuit 44 converts the voltage value Vx obtained for each loop coil into digital values and performs predetermined arithmetic processing on these values. The coordinate values of the specified position 6 in the X direction by the position specifying unit 24 are determined. Further, the coordinate values of the position specified in the Y direction by the position specifying section 24 of the image scanner 2 are obtained in the same manner.

The frequency switching signals px and p2 mentioned above are the count values of a quaternary ring counter configured by a program etc. in the control circuit 44, and the counter is configured to select each loop coil in the X direction and the Y direction and to control the induced voltage. Each time the detection is performed, it is incremented by "]", and the count value at that time is the switching signal p+,
Signal generation circuit 4 along with start pulse p3 as p2
5 is sent out. Therefore, the frequency of the AC signal is sequentially switched from fO to f3, and this is repeated to perform position detection.

Here, as mentioned above, since the tuning frequency of the position indicating section 25 of the image scanner 2 is fl, the switching signal pi,
p2 or "01" and the radio waves of frequency fl are transmitted and received from each loop coil of the tablet input section 7, the coordinate values obtained are the coordinate values of the position designated by the position instruction section 25.

Similarly, when the switch 38 of the input pen 3 is off, the tuning frequency of the tuning circuit 42 is f2, so the switching signals pJ-, p2 become "10" and the tablet! - The coordinate values obtained when radio waves of frequency f2 are transmitted and received from each loop coil of the input section 7 become the coordinate values of the specified position of the input pen 3 in the pen-up state. Furthermore, when the switch 38 is on in the input pen 3, the tuning frequency of the tuning circuit 42 is f3, so the switching signals pi and p2 are "
11'' and the radio waves of frequency f3 are transmitted and received from each loop coil of the tablet input unit 7, the coordinate values obtained are the coordinate values of the specified position of the pen down state by the input pen 3.

Therefore, the switching signal p1p2 indicating the frequency of the alternating current signal has the coordinate value of the position indicating unit 24 of the image scanner 2 at that time.
or the input pen 3 is in the specified position by the position indicating section 25, or the input pen 3 is in the pen-up state.
This is identification information indicating whether the position is specified by the input pen 3 or the input pen 3 in the pen-down state.

The value of the l;7I@signal pi, p2 is the waterlogged X
It is transferred to the CPU 19 of the apparatus main body together with the coordinate values of the specified position in the direction and Y direction.

Next, according to FIGS. 8 to 10, the image scanner 2, tablet input section 7, tablet I/control circuit] 3
The details of the position detection operation will be explained below.

First, the control circuit 44 resets the above-mentioned quaternary counter (step 5p1), sends the counter counter, that is, the switching signals pi and p2 together with the start pulse p3 to the signal generation circuit 45 (step 5p2), and information for selecting the X direction. XY switching circuit 50 and reception timing switching circuit 5
1, and also sends information for selecting the first loop coil 7x-1 among the loop coils 7x-1 to 7x-48 in the X direction of the tablet input unit 7 to the selection circuit 46, and selects the loop coil 7x-1. is connected to the transmission/reception switching circuit 48.

The transmission/reception switching circuit 48 alternately connects the loop coil 7x-1 to the drive circuit 55 and the one-width switch 57 based on the transmission/reception switching signal B described above. Then, 16 sine wave signals of 800 kHz as shown in FIG. 9(a) are sent to the loop coil 7X-1.

The switching between transmission and reception is as shown in FIG. 9(b).
loop coil, here repeated 7 times for 7x-1. This seven-time transmission and reception repetition period corresponds to the selection period of the - loop coil.

At this time, an induced voltage is obtained at the output of the amplifier 57 with respect to the negative loop coil every seven reception periods, but this induced voltage is passed through the reception timing switching circuit 51 to the bandpass filter 52 as described above. It is sent out, averaged, and sent to the detector 5.
3 and a low-pass filter 54 before being sent to the control circuit 44 .

The control circuit 44 converts the output value of the low-pass filter 54 into an A/D converter.
It is converted and inputted to the position instruction section 24 of the image scanner 2.
The detection voltage depending on the distance between the coil 28 and the loop coil 7X-1 is temporarily stored as, for example, Vxl.

Next, the control circuit 44 sends information for selecting the loop coil 7x-2 to the selection circuit 46, and the loop coil 7
x-2 is connected to the transmission/reception switching circuit 48, a detection voltage Vx2 that depends on the distance between the coil 28 and the loop coil 7X-2 is obtained, and this is stored.
~7x-48 are connected to the transmission/reception switching circuit 48 in sequence, and the 9th
Detection voltage Vxl to Vx48 depending on the distance in the X direction from the coil 28 for each loop coil as shown in Figure (Q)
(However, only a part of it is shown in an analog representation in FIG. 9(e).) is stored (step 5p3).

As shown in FIG. 10, the actual detected voltage is obtained only in several loop coils around the position (xp) where the coil 28 is placed as the center.

Next, the control circuit 44 sends selection information in the Y direction to the XY switching circuit 50 and the reception timing switching circuit 51, and switches the selection circuit 47 and the four transmission/reception switching circuits in the same manner as described above.
The output value of the low-pass filter 54 when transmitting and receiving radio waves is A/
The detected voltage depending on the distance between the coil 28 obtained by D conversion and each of the loop coils 7y-1 to 7y-48 in the Y direction is stored for - hours (step 5p4).

After this, the control circuit 44 checks whether the voltage value of the stored detection voltage is above a certain detection level (step 5p5), and if it is below the certain detection level, increments the quaternary counter by "1". The process advances (step 5p6), and the processes of steps Sp2 to sp4 are repeated. Further, if it is above a certain detection level, execute a predetermined calculation process from the stored voltage value to calculate the coordinate values of the designated position of the coil 28 in the X direction and Y direction.Step 5p7) The switching signal p1-+p2, here, is transferred to the CPU 19 of the main body of the apparatus together with the identification information consisting of "00" (step 5p4), the quaternary counter is incremented by "]" (step 5p6), and the steps sp2 to spg are performed. Repeat the process.

FIGS. 11(a) and 11(b) show the flow of the program related to the large screen image input function in the CPU 19. Below, the steps to be taken when inputting an image larger than the reading width of the image scanner 2 using the image scanner 2 are as follows. Explain the operation.

3 First, as shown in FIG. 12(a), the image scanner 2
A document or the like 66 having an image larger than the width of the reading line 23a is fixed with a paper holding clip 9 or the like so that the image falls within the coordinate input range 7a of the tablet input section 7. Next, a command to use the large screen image input function is input using the keyboard 8 or the menu items displayed on the display section 6, the input pen 3, and the tablet input section 7. When the CPU 19 receives the command, it starts the program shown in FIGS. 11(a) and 11(b) and waits for input of coordinate values for the position indicating sections 24 and 25 of the image scanner 2.

Next, the image scanner 2 is placed on one end of the form 66 so that the entire image scanner 2 is in a substantially upright state and its opening 22a is in contact with the paper surface. After that, the switch 26 is turned on and the entire image scanner 2 is moved in a direction perpendicular to the reading line 23a of the image sensor 23 (direction of arrow A in the figure).
It moves while rotating the rubber roller 27.

At this time, the above-mentioned radio waves are exchanged between the position indicating parts 2, 4A and 25 of the image scanner 2 and the tablet input part 7, and the tablet control circuit 1-
3, the coordinate values of the specified position and its identification information are transferred to the CPU 19.

When radio waves of frequency fO are being transmitted and received from the tablet input unit 7, the coordinate value (x
al, y al) are detected, and the identification information, in this case "00", is detected along with the coordinate value of the tablet control circuit 1.
3 to the CPU 19. When the CPU 19 detects the identification information "00", the CPU 19 stores the coordinate value in the RAM 17.
is stored in the first storage area.

Further, when the tablet input unit 7 is transmitting and receiving radio waves of frequency fl, the position indicating unit 2 of the image scanner 2
The coordinate value (x a2. y a2) of a point corresponding to the position of the coil 30 in No. 5, for example, a2 is detected, and identification information, in this case "01", is transferred from the tablet control circuit 13 to the CPU L9 along with the coordinate value. be done. CPU19
When detecting the identification information “01”, the coordinate value is RA
It is stored in the second storage area of M17.

The above-described operation is repeated while the switch 26 is on, and the coordinate values in the first and second storage areas of the RAM 17 are sequentially updated.

On the other hand, if the coordinate values are stored in the first and second storage areas of the RAM 17, the CP'U 19 operates the image sensor 23 of the image scanner 2 via the image scanner interface 14. Image sensor 23
converts the image of the reading line 23a into image information and outputs it. When the CPU 19 receives the image information via the image scanner interface 14, it calculates the coordinate values (x al,
y al) and (x a2. Y a2), all the coordinate values of the image information are converted into values corresponding to the coordinate axes of the tablet input unit 7, and are stored in the image memory 18.

The above-described operation is repeated each time the coordinate values stored in the first and second storage areas of the RAM 17 are updated to different values, so as the image scanner 2 moves, the point al
This is performed every time the position of a2 on the form 66 changes, that is, the position of the reading line 23a changes. Therefore, as shown in FIG. 12(b), all images within the range 67 formed by the movement of the reading line 23a (shaded area in the figure) are stored as image information corresponding to the - coordinate axis]8 is memorized. Note that the contents of the image memory 18 are displayed on the display section 6 via the display control circuit 12.

When the position of the image scanner 2 reaches the other end of the form, etc. 66, the switch 27 is turned off once, as shown in FIG. 12(e).
As shown in FIG. 3, the device is placed at the next position next to one end of the form 66, and as before, the switch 26 is turned on and moved in the direction of arrow A to input an image.

Thereafter, by repeating the above operations, all the images on the form etc. 66 can be converted into image information for one screen corresponding to the - coordinate axis (here, the coordinate axis of the tablet input unit 7).

Furthermore, when moving the image scanner 2 to the next position, if the reading line 23a is slightly bent before and after the movement, information may be missing in the image information for one screen formed on the image memory 18. will never occur (
At this time, new information will be written on top of the information previously written on the image memory 18 in the overlapping part, but as long as the form etc. 66 does not move on the tablet input section 7, the new information will be written on top of the information previously written on the image memory 18. The coordinate axes are the same, and the (i!?) information is also the same, so there is no problem. Furthermore, in this embodiment, since it is possible to detect the coordinate values of positions corresponding to almost both ends of the reading line 23a of the image scanner 2, it is not necessary to move the image scanner 2 particularly linearly, and the image scanner 2 can be moved in any direction to capture images. can be entered.

Further, the image information stored in the image memory 18 is subjected to various processes using the input pen 3 as necessary, is made into a hard copy by a printer (not shown), and is sent to other sources via a communication line (not shown). The information is transmitted to the device, and furthermore, it is registered and held in the memory card Z/4, or used in other devices.

In the above embodiment, the image scanner is provided with two position indicating sections, but it may be provided with one or three or more. However, when there is only one position indicating section, it is necessary to always move the image scanner 2 in one direction perpendicular to the reading line 23a, but this can be achieved to a degree that causes no practical problems using the rubber roller 27 described above. be.

Further, in the above embodiment, the display section 6 and the tablet input section 7 are separate, but they may be stacked and integrated so that the input position and the display position coincide with each other. In this case, the image drawn on the form 66 is displayed in its original size directly below the scanning position.

In addition, in the above embodiment, the tablet input section, the position instruction section of the image scanner and stylus pen, and the tablet control circuit transmit and receive radio waves between the tablet input section and the position instruction section of the image scanner and stylus pen. 5. Although a device capable of detecting target values and a cordless connection between the position indicating unit and the tablet control circuit is used, it can also be applied to devices using general electromagnetic induction method or other methods. Needless to say. For example,
Publication No. 8-4382 or JP-A-60-134322
In the publication, a position detection device that can separately (each) detect the positions of two or more position indicators is proposed,
Given the spirit of the present invention, it is possible to implement these position detection devices, and the claims should also be interpreted to include them.

(Effects of the Invention) As explained above, according to the image input display device of the present invention, by manually scanning a form, etc. fixed on a tablet with an image scanner, it is possible to correspond to an image drawn on the form, etc. Since it is possible to input image information along with information about its position, etc., even if you change the position of the image scanner one after another and input images, all images on a form etc. will be input corresponding to the - coordinate axis. Therefore,
Even if an image is larger than the reading width of an image scanner, it can be input as one screen of image information, stored, further processed, and displayed.

In addition, if the input section of the tablet and the display section of the display device are stacked and integrated so that the input position and display position coincide with each other, an image drawn on a form etc. can be placed directly below the scanning position. It can be displayed in its original size.

Further, according to the image scanner of the present invention, an image drawn on a form or the like can be converted into image information by manual scanning, and information indicating the position of one tablet can be given to a predetermined tablet.

Further, according to the image scanner of the present invention, an image drawn on a form or the like can be converted into image information by manual scanning, and information indicating two or more positions can be given to a predetermined tablet. .

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the image input display device and image scanner of the present invention, FIG. 2 is a block diagram showing the main structure of the device body, and FIG. 4 is a sectional view of the stylus pen, FIG. 5 is a detailed configuration of the tablet input section, FIG. 6 is a diagram showing the configuration of the tablet control circuit together with the position indicating section of the image scanner, and FIG. Figure 7 is a signal waveform diagram of each part of the circuit in Figure 6, Figure 8 is a flowchart of processing in the tablet, and Figures 9 (a), (b), and (c) are timing diagrams showing basic position detection operations in the tablet. , Fig. 10 is a diagram showing the voltage obtained from each loop coil during position detection operation, Fig. 11 (a) and (b) are flow charts of the program related to the large screen image input function, and Fig. 12 (
a), (b), and (c) are diagrams showing how an image larger than the image reading width of the image scanner is input. 1...Device body, 2...Image scanner, 6...
-Display section, 7...Tablet input section, 12...Display control circuit, 13...Tablet control circuit, 23...
Image sensor, 24.25... position indicating section. 2 JP-A-3 32276 (15)

Claims (4)

[Claims] (1) A tablet that detects the position of a position indicating unit operated within a predetermined coordinate input range and outputs the coordinate values, etc., and an image sensor with a predetermined reading width and at least indicates the position to the tablet. 1. An image input/display device comprising: an image scanner having a position indicating section for giving information; and a display device; and processing image information from the image scanner based on information such as coordinate values from a tablet. (2) The image input/display device according to claim (1), wherein the input section of the tablet and the display section of the display device are stacked and integrated so that the input position and display position thereof coincide with each other. (3) An image scanner comprising an image sensor having a predetermined reading width and one position indicating section that provides at least information indicating the position of a predetermined tablet. (4) An image scanner comprising: an image sensor having a predetermined reading width; and two or more position indicating units that provide at least information indicating the position of a predetermined tablet.