JPH01289366A - Picture input device and hand scanner - Google Patents

Abstract

PURPOSE:To input a picture larger than the picture reading area of a hand scanner by processing picture information by the hand scanner based on the information such as a coordinate value by a tablet and a position detecting circuit. CONSTITUTION:A slip, etc., are fixed on a tablet 1, a hand scanner 2 is placed on the slip, etc., a position detecting circuit 3 is operated and thus, the position of at least two positions instructing parts of the hand scanner 2 are detected. By operating the picture reading part of the hand scanner 2, the picture such as the slip is converted to the picture information. Since the input range of the picture information is determined based on one coordinate axis from the coordinate value of at least two position instructing parts, the position of the hand scanner 2 is changed successively, the coordinate value and the picture are inputted, and then, all pictures such as the slip are inputted corresponding to one coordinate axis. Thus, even the picture larger than the picture reading area of the hand scanner can be inputted as the picture information of one picture as it is.

Description

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

(Prior Art) In recent years, with the spread of personal computers, word processors, etc., handheld image scanners (hereinafter referred to as hand scanners) have become easier to obtain at lower prices.

(Problems to be Solved by the Invention) However, since the image reading area of the hand scanner is usually about A6 or 87, there is a problem that large images cannot be input as they are.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide an image input device capable of inputting an image larger than the image reading area of a hand scanner, and a hand scanner suitable for the device.

(Means for Solving the Problem) In order to achieve the above object, the present invention provides a tablet having a predetermined coordinate input range, a self-propelled image reading unit, and at least two devices that provide information indicating the position of the tablet to the tablet. A hand scanner equipped with two position indicating sections, a position detection circuit that drives the tablet, detects the position of the position indicating section within the coordinate input range, and outputs the coordinate values, etc., and a position detection circuit that drives the tablet and outputs the coordinate values etc. an image input device consisting of a data processing device that performs processing based on information such as coordinate values from a position detection circuit; a self-propelled image reading unit; and at least two devices that provide information indicating the position of a predetermined tablet. A hand scanner equipped with a position indicating section is proposed.

(Function) According to the image input device of the present invention, a document, a photograph, etc. (hereinafter referred to as a document, etc.) on which an image larger than the image reading area of a hand scanner is drawn is fixed on a tablet, and the document When the hand scanner is placed on a surface such as the like so that at least a part of the image is within the image reading range, and the position detection circuit is operated, the positions of at least two position indicating parts of the hand scanner are detected. The coordinate values are sent to the data processing device, and when the image reading section of the hand scanner is operated, the image is converted into image information and sent to the data processing device, but the input range of the image information is Since one coordinate axis is determined from the coordinate values of the at least two position indicating parts, if you change the position of the hand scanner one after another and input the coordinate values and images, all the images on the form etc. is input corresponding to the coordinate axes. Further, according to the hand scanner of the present invention,
An image drawn on a form or the like is converted into image information, and information indicating at least two positions is input to a predetermined tablet.

(Embodiment) FIG. 1 shows an embodiment of the image input device and its hand scanner of the present invention. In the figure, 1 is a tablet having a predetermined coordinate input range, and 2 is a self-propelled image reading unit. and a hand scanner equipped with at least two position indicating parts that give information indicating the position of the tablet 1, 3 drives the tablet 1, detects the position of the position indicating part within the coordinate input range, and calculates the coordinate value. position detection circuit that outputs etc.
4 is a data processing device that processes image information from the hand scanner 2 based on information such as coordinate values from the tablet 1 and the position detection circuit 3; and 5 is a display device.

FIG. 2 shows details of the X-direction loop coil group 11 and the X-direction loop coil group 12 that constitute the tablet 1. The loop coil group 11 in the X direction includes a large number, for example, 48 loop coils 11-1, 11-2, . ...
...11-48, and the loop coil group 12 in the X direction includes a large number of loop coils 12, which are also 48, arranged parallel to each other and overlapping each other along the X direction.
-1.12-2. . . .12-48, and the X-direction loop coil group 11 and the X-direction loop coil group 12 are closely overlapped with each other (however, in the drawing, they are separated for ease of understanding). ), and is housed in a case made of non-metallic material (not shown). Although each loop coil is configured with one turn here, it may be configured with multiple turns as necessary.

Figure 3 shows the detailed structure of the hand scanner 2.
In the figure, 21 is a substantially rectangular housing made of a non-metallic material such as synthetic resin and is equipped with an image reading window 22, and 23 is equipped with a large number of photoelectric conversion elements arranged one-dimensionally, and the image is read by a driving means (not shown). It moves within the window 22 in a direction perpendicular to the arrangement direction of the photoelectric conversion element, and converts the read image into an electrical signal (
image reading section 24-1 and 24 for converting into image information)
-2 are switches 241. The first and second position indicating sections 25-1 and 25-2 are composed of a coil 242 and a capacitor 243 (however, the details of the second position indicating section 24-2 are omitted in the drawing); and second
26 is an image reading start switch.

In the position indicating section 24-1 (or 24-2),
As shown in FIG. 4, the coil 242 and capacitor 243 are connected in series to each other via a switch 241, and when the switch 241 is turned on, they form a well-known resonant (tuned) circuit. ing. In addition, the coil 24
The numerical values of 2 and the capacitor 243 are set to values such that the phases of the voltage and current resonate (synchronize) in the same phase at a predetermined frequency fO.

FIG. 4 shows the details of the position detection circuit 3 together with the circuit of the position detection section 24-1 (or 24-2) of the hand scanner 2. In the figure, 8 (11 is the vJ four circuit 302x, 3
02y is a selection circuit, 303x, 303y is a transmission/reception switching circuit, 304 is a timing circuit, 305 is an XY switching circuit,
308x, 308y are drive circuits, 307x, 801
y is an amplifier, 308 is a reception timing switching circuit, 309
is a bandpass filter (BPF), 310 is a detector, 3
11 is a low pass filter (LPF).

Next, tablet 1. The state of position detection in the hand scanner 2 and the position detection circuit 3 will be explained. First, the position indication section 24 of the tablet 1 and the hand scanner 2
-1 (or 24-2) and the signals obtained at this time will be explained with reference to FIG.

The control circuit 301 is composed of a well-known microprocessor, etc., and controls the timing circuit 304.
The switching of each loop coil of the tablet 1 is controlled via the selection circuit 302x and ao2y, and the XY switching circuit 3
05 and the reception timing switching circuit 308 to control the switching of the coordinate detection direction, and furthermore, the low-pass filter 31
The output value from 1 is converted into analog/digital (A/D), and the arithmetic processing described later is executed to calculate the coordinate values of the position indicating section 24-1 (or 24-2) of the hand scanner 2. It is sent to the data processing device 4.

The selection circuit 302x sequentially selects one loop coil from the loop coil group 11 in the X direction, and
The selection circuit 302F sequentially selects one of the loop coils 12 in the Y direction, and each operates based on information from the control circuit 301.

The transmission/reception switching circuit 303x connects the selected negative loop coil in the X direction alternately to the drive circuit 308x and the amplifier 307x, and the transmission/reception switching circuit 303y
is to connect the selected negative loop coil in the Y direction alternately to the drive circuit 306y and the amplifier 307y, which operate based on a transmission/reception switching signal to be described later.

The timing circuit 304 has a predetermined frequency fO1, for example, 50
0kHz rectangular wave signal A1 predetermined frequency fk.

For example, a transmission/reception switching signal B and a reception timing signal C of 15.825 kHz are generated. The rectangular wave signal A is converted into a sine wave signal by a low-pass filter (not shown), and then sent to the drive circuit 306x or 3 via the XY switching circuit 305.
Further, the transmission/reception switching signal B is sent to the transmission/reception switching circuits 308X and 5osy, and the reception timing signal C is sent to the reception timing switching circuit 308.

Now, assuming that information for selecting the X direction is input from the control circuit 301 to the XY switching circuit 305 and the reception timing switching circuit 308, the sine wave signal is
x, where it is converted into a balanced signal, and further sent to the transmission/reception switching circuit 303x.
07x, the signal output from the transmission/reception switching circuit 303x to the selection circuit 302x is transmitted at a time T (-1/2fk), here every 32 μsec at 50
This is a signal that may or may not emit a 0kHz signal.

The signal is passed through the selection circuit 302x to the negative loop coil 11-i (i-1°2,
...48), but the loop coil 1
1-1 generates radio waves based on the signal.

At this time, Tablet 1 (or a form etc. fixed to it)
The hand scanner 2 is placed on top, and its position indicating section 24
-1 (or 24-2) is on, the radio wave is transmitted to the position indicating section 24-1 (or 24-2).
-2) The coil 242 is excited to generate an induced voltage E in synchronization with the signal in the circuit.

Thereafter, as the signal enters a no-signal period, that is, a reception period, the loop coil 11-i is switched to the amplifier 307x.
When the loop coil 11-1 is switched to the side, the radio waves from the loop coil 11-1 disappear immediately, but the induced voltage E is
4-1 (or 24-2).

On the other hand, based on the induced voltage E, the position indicating section 24-1 (
or 24-2) causes the coil 242 to emit radio waves. Since the radio wave reversely excites the loop coil 11-1 connected to the amplifier 307x, an induced voltage due to the radio wave from the coil 242 is generated in the loop coil 11-1. The induced voltage is sent from the transmission/reception switching circuit 303x to the amplifier 307X only during the reception period, is amplified, becomes a reception signal F, and is further sent to the reception timing switching circuit 308.

The reception timing switching circuit 308 receives either the X-direction or the Y-direction selection information, here the X-direction selection information, and the reception timing signal C, which is essentially an inverted signal of the transmission/reception switching signal B. and the signal C is high (H)
Since the received signal F is output during the level period and nothing is output during the low (L) level period, the signal G (substantially the same as the received signal F) is obtained as the output.

The signal G is sent to a bandpass filter 309, which is a ceramic filter having a natural frequency of frequency fO, and a signal having an amplitude corresponding to the energy of the acid component at frequency fO in the signal G. H (strictly speaking, in a state in which several signals G have been input to the bandpass filter 309 and converged) is sent to the detector 310.

The signal H input to the detector 310 is detected and rectified to become the signal I, and then passed through a low-pass filter 311 with a sufficiently low cutoff frequency to have a voltage value Vx corresponding to approximately 1/2 of the amplitude. It is converted into a DC signal J and sent to the control circuit 301.

The voltage value VX of the signal J is determined between the position indicating section 24-1 (or 24-2) of the hand scanner 2 and the loop coil 11-1.
A value that depends on the distance between the By converting the value VX into digital values and performing the arithmetic processing described below on these values,
Position indicating section 24-1 (or 24-) of hand scanner 2
The coordinate value of 2) in the X direction is calculated. Note that the coordinate value of the position indicating section 24-1 (or 24-2) of the hand scanner 2 in the Y direction is calculated in the same manner.

Next, the position detection operation in the tablet 1 degree hand scanner 2 and position detection circuit 3 will be described in detail with reference to FIGS. 6 to 8.

First, the control circuit 301 sends information for selecting the X direction to the XY switching circuit 305 and the reception timing switching circuit 308, and also sends information for selecting the X direction to the loop coil 11-1 of the tablet 1.
11-48, information for selecting the first loop coil 11-1 is sent to the selection circuit 302x, and the loop coil 1
1-1 is connected to the transmission/reception switching circuit 303x.

The transmission/reception switching circuit 303x controls switching of the loop coil 11-1 alternately to the drive circuit 306x and the amplifier 307x based on the above-mentioned transmission/reception switching signal B. At this time, the drive circuit 3011x controls the sixth
16 sine wave signals of 500 kHz as shown in Figure (a) are sent to the loop coil 11-1.

The switching between transmission and reception is as shown in FIG. 6(b).
loop coil, here repeated seven times for 11-1. This seven-time transmission and reception repetition period corresponds to the - loop coil selection period (448 μsec).

At this time, an induced voltage is obtained at the output of the amplifier 307x for the − loop coil every seven reception periods, but this induced voltage is generated by the reception timing switching circuit 30 as described above.
8 to a bandpass filter 309 and averaged.
Control circuit 3 via detector 310 and low-pass filter 311
01.

The control circuit 301 converts the output value of the low-pass filter 311 into an A/D
The detected voltage is converted and temporarily stored as a detected voltage that depends on the distance between the position indicating section 24-1 (or 24-2) and the loop coil 11-1, for example, Vxl.

Next, the control circuit 301 sends information for selecting the loop coil 11-2 to the selection circuit 302x, and
-2 to the transmission/reception switching circuit 303x, and
-1 (or 24-2) and the loop coil 11-2 is obtained and stored, and thereafter, the loop coils 11-3 to 11-48 are sequentially connected to the transmission/reception switching circuit. 303x, and the position indicating section 24-1 (or 24
-2) Detection voltage Vxl-V depending on the distance in the X direction from
x48 (however, only a part of it is shown in analog representation in FIG. 6(C)).

The actual detected voltage is determined by the position indicator 24 as shown in FIG.
-1 (or 24-2) position directly below the coil 242 (x
It is obtained only in a few loop coils before and after p).

The control circuit 301 checks whether the voltage value of the stored detection voltage is above a certain detection level, and if it is below the certain detection level, selects each loop coil in the X direction and performs voltage detection again. Repeatedly, if the detection level is above a certain level, proceed to the next process.

Next, the control circuit 301 sends selection information in the Y direction to the XY switching circuit 305 and the reception timing switching circuit 308,
In the same manner as above, the selection circuit 302y and the transmission/reception switching circuit 30
Low-pass filter 31 when transmitting and receiving radio waves by switching 3y
A position indicating section 24- obtained by A/D converting the output value of 1
1 (or 24-2) and each loop coil 12- in the Y direction
1 to 12-48 are temporarily stored.

After that, a level check is performed in the same manner as above, and if it is below a certain detection level, the process returns to selection of each loop coil in the X direction and voltage detection, and if it is above a certain detection level, the stored From the voltage values, coordinate values representing the positions of the position indicating section 24-1 (or 24-2) in the X and Y directions are calculated and transferred to the data processing device 4, as will be described later.

When the first position detection operation is completed in this way,
As shown in FIG. 8, the control circuit 301 detects the loop coil 11-1 in the X direction for the second and subsequent position detection operations.
~11-48, the selection circuit 302x generates information for selecting only a certain number of loop coils, for example, 10 loop coils before and after the loop coil from which the maximum detected voltage was obtained.
Also, loop coils 12-1 to 12 in the Y direction
- Information for selecting only a certain number of <10 loop coils before and after the loop coil from which the maximum detected voltage was obtained is sent to the selection circuit 302y, and output in the same manner as described above. After obtaining the value, position instruction section 24-1
(or 24-2) in the X and Y directions, the obtained coordinate values are transferred to the data processing device 4 and updated, and these steps are repeated thereafter.

Therefore, Tablet 1 (or a form etc. fixed to it)
The hand scanner 2 is placed on top, and its position indicating section 24-
When the switch 241 of 1 is turned on, the position indicating section 24
-1 coordinate value is transferred to the data processing device 4, and when the switch 241 of the position indicating section 24-2 is turned on, the coordinate value of the position indicating section 24-2 is transferred to the data processing device 4. .

Note that the above-mentioned level check refers to checking whether the maximum value of the detection voltage has reached the detection level and which loop coil has the maximum detection voltage, and checking whether the detection level has been reached. If not, the process stops subsequent coordinate calculations, etc., and also sets the center of the loop coil to be selected in the next position detection operation.

As one calculation method for determining the coordinate value in the X direction or the Y direction, for example, the coordinate value xp, the detected voltage Vxl−Vx
There is a method of approximating the waveform near the maximum value of 48 by an appropriate function and finding the coordinates of the maximum value of the function.

For example, in FIG. 6(e), the maximum detection voltage Vx3
By approximating the detected voltages Vx2 and VX4 on both sides by a quadratic function, it can be calculated as follows (however, the coordinate values of the center positions of each loop coil 11-1 to 11-48 are x4B, and the interval is ΔX.)
. First, from each voltage and coordinate value, Vx2-a (x2-Xp) 10b...
...(1) Vxl-a(x3-xp) 10b
= (2) Vx4-a (x4-xp)
10 b −”=(3). Here, a and b are constants (a<0).

Also, x3 −x2 −ΔX ・
...(4)x4 -x2 =2ΔX
......(5). (4)
, Substituting equation (5) into equations (2) and (3) and rearranging, xp-x2+Δx/2 ((3Vx2-4 Vx3
+ Vx4) / (Vx2-2 Vx3+ Vx4)
)...(6) becomes.

Therefore, from each detection voltage VXI to V The coordinate value xp of the position of the position indicating section 24-1 (24-2) can be calculated by performing an operation corresponding to the above-mentioned equation (6) from the coordinate value (known) of the previous loop coil.

FIG. 9 shows details of the data processing device 4, and in the figure,
41 is a keyboard, 42 is a read-only memory (ROM)
), 43 is random access memory (RAM), 4
4 is a frame memory, 45 is an interface circuit for the hand scanner 2, 46 is an interface circuit for the position detection circuit 3, 47 is an interface circuit for the display device 5, and 48 is a microprocessor (CPU).

Predetermined programs etc. are stored in the ROM 42, and
The RAM 43 has a position indicating section 24-1 of the hand scanner 2.
and a storage area 431 for storing the coordinate values of 24-2,
432 is set.

FIG. 1O shows the flow of a program related to the large screen input function in the data processing device 4. Hereinafter, an image larger than the image reading area of the hand scanner 2 is transferred to the tablet 1. The operation of inputting data using the hand scanner 2, position detection circuit 3, and data processing device 4 will be described.

First, as shown in FIG. 11(a), a form or the like 6 having an image larger than the image reading area of the hand scanner 2 is fixed within the coordinate input range 1a of the tablet 1 with tape or the like.

Next, the hand scanner 2 is placed on top of the form 6, and an image reading range 23 corresponding to the size of the image reading window 22 is placed.
A is placed so as to partially cover the form, etc. 6.

Next, when a command to use the large screen input function is input from the keyboard 41, the CPU 48 starts the program shown in FIG. The system enters a state of waiting for input of coordinate values.

Here, when the switch 241 of the position indicating section 24-1 of the hand scanner 2 is turned on, the coordinate value of the point AI corresponding to the position of the position indicating section 24-1, for example (x at,
y al) is detected by the position detection circuit 3, but the CPU 4
8 receives the coordinate values via the interface circuit 46 and stores them in the storage area 431 of the RAM 43. Similarly, when the switch 241 of the position indicating section 24-2 of the handheld scanner 2 is turned on, the coordinate value of the point A2 corresponding to the position of the position indicating section 24-2, for example (x a2.
y a2) is detected by the position detection circuit 3, which is stored in the storage area 4321 of the RAM 43.

Next, the image reading start switch 26 of the hand scanner 2
When turned on, the image reading section 23 starts operating, converts the image within the image reading range 23a of the form etc. 6 into image information, and outputs it.

The CPU 48 receives the image information via the interface circuit 45 and sends the image information to the position indicating section 24 in the hand scanner 2.
-1 and 24-2 and their positional relationship with the image reading range 171 (23a), the coordinate values of the image information are determined based on the coordinate values (x aLy al) and (x a2. y a2) of the tablet 1. Convert to a value corresponding to the coordinate axes,
It is stored in the frame memory 44.

When the writing of the image information to the frame memory 44 is completed, the CPO 48 enters a state of waiting for the input of coordinate values regarding the position indicating sections 24-1 and 24-2 of the hand scanner 2 again. Note that the contents of the frame memory 44 are sent to the display device 5 via the interface circuit 47 and displayed.

Next, as shown in FIG. 11(b), the image reading range 23a of the hand scanner 2 is different from the input image range (the shaded part in the figure) of the form 6, for example, the adjacent part. Then move the switches 241 of the position indicating parts 24-1 and 24-2 in the same way as above.
are turned on sequentially, and the coordinate values of the point Bl corresponding to the position of the position indicator 24-1 at this time, for example, (x bl, Y
bl) and point B corresponding to the position of the position indicator 24-2.
The coordinate value of 2, for example (x b2. y b2), is RA
M43 is stored in the storage areas 431 and 432, respectively, and the image reading start switch 26 of the hand scanner 2 is turned on to read the image reading range 23a of the form 6.
Convert the image within to image information, and convert this into coordinate values (x bl, y bl) and (x b2. y
b2), the coordinate values are converted into coordinate values corresponding to the coordinate axes of the tablet 1 and stored in the frame memory 44.

Hereafter, by repeating the above operation, all images on the form etc. 6 are displayed on the - coordinate axis (here, the coordinate axis of the tablet 1)
can be converted into image information for one screen corresponding to .

Further, when moving the hand scanner 2, if the image reading range 23a is slightly overlapped before and after the movement, the image reading area 23a formed on the frame memory 44 can be
There will be no loss of information in the screen's worth of image information (
At this time, in the overlapping part, the information written first on the frame memory 44 will be erased by the information written later, but as long as the form etc. 6 does not move on the tablet 1, that information will be erased. Since the coordinate axes are the same and the information is also the same, there is no problem. ).

Further, the image information stored in the frame memory 44 is converted into a 71-copy format by a printer (not shown) as needed, and is transmitted to another device via a communication line (not shown).

FIG. 12 shows an example of a stylus pen for inputting handwritten characters, figures, etc. using the tablet 1 and position detection circuit 3 described above. From the tip end, a core body 72 of a ballpoint pen or the like, a ferrite core 73 having a through hole capable of slidably accommodating the core body 72, and a coil spring 74;
A position indicator 75 consisting of a switch 751, a coil 752 wound around a ferrite core 73, and a capacitor 753 are integrated and built in, and a cap 76 is attached to the rear end.

In the position indicating section 75, a coil 752 and a capacitor 753 are connected in series to each other via a switch 751, and when the switch 751 is turned on, they constitute a well-known resonance (tuned) circuit. . Note that the values of the coil 752 and capacitor 753 are such that at a predetermined frequency fO, the voltage and current are in phase and resonate (synchronize).
is set to the value.

The switch 751 is operated by holding the pen shaft 71 by hand or the like and pressing the tip of the core body 72 against the upper surface of the tablet 1 (or a form fixed thereon).
1, the rear end presses through the coil spring 74 and turns on. Note that when an image already drawn on a form is to be traced and input, a simple rod made of metal, plastic, or the like is used as the core body 72.

Further, the above-described scanner 2 is equipped with switches, coils, and capacitors constituting the position indicating sections 24-1 and 24-2 in its housing 21, but the switch, coil, and capacitor constituting the position indicating sections, A unit including a coil and a capacitor may be prepared in advance and attached to the side of a commercially available hand scanner.

Further, in the above embodiment, the position indicating section and position detection circuit of the tablet and hand scanner (or stylus pen) transmit and receive radio waves between the tablet and the position indicating section of the hand scanner (or stylus pen) to obtain coordinate values. Although the present invention uses a device that is capable of detecting the distance between the position indicating section and the position detection circuit and that allows a cordless connection between the position indicating section and the position detection circuit, it is possible to apply this method to devices using an electromagnetic induction method inside the membrane or other methods. Not even.

(Effects of the Invention) As explained above, according to the image input device of the present invention, a form or the like can be fixed on a tablet, a hand scanner can be placed on the form, etc., and the position detection circuit can be operated. The positions of at least two position indicating parts of the hand scanner are detected, and the image on the form, etc. is converted into image information by operating the image reading part of the hand scanner. The input range is determined based on one of the coordinate axes from the coordinate values of the at least two position indicating parts, so if you change the position of the hand scanner one after another and input the coordinate values and images, all of the information on the form etc. The image will be input corresponding to the - coordinate axis, so even if the image is larger than the image reading area of the hand scanner, it can be input as is as one screen of image information. Further, according to the hand scanner of the present invention, there are advantages such as being able to convert an image drawn on a form etc. into image information, and being able to input information indicating at least two positions for a given tablet. .

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an embodiment of the image input device and its hand scanner of the present invention, Fig. 2 is a detailed configuration diagram of the loop coil group in the X direction and Y direction of the tablet, and Fig. 3 is a diagram of the hand scanner. Figure 4 is a diagram showing the detailed structure of the hand scanner, Figure 5 is a signal waveform diagram of each part of Figure 4, Figure 6 (a)
(b) (c) is a timing diagram showing the basic position detection operation in the position detection circuit, Figure 7 is a diagram showing the detection voltage obtained from each loop coil during the first position detection operation, Figure 8 is a diagram showing the detection voltage obtained from each loop coil during the first position detection operation. The figure is a timing diagram showing the position detection operation from the second time onwards, FIG. 9 is a diagram showing details of the data processing device,
Figure 10 is a flowchart showing a program related to the large screen input function in the data processing device, Figures 11 (a) and (b)
12 is a diagram showing a situation when an image larger than the image reading range of the hand scanner is input, and FIG. 12 is a sectional view showing an example of a stylus pen. 1...Tablet, 2...Hand scanner, 3...
・Position detection circuit, 4...data processing device, 23...
Image reading section, 24-1, 24-2... position instruction section.

Claims (2)

[Claims] (1) a hand scanner comprising a tablet having a predetermined coordinate input range, a self-propelled image reading unit, and at least two position indicating units that provide information indicating the position of the tablet; and driving the tablet; A position detection circuit that detects the position of the position indicator within the coordinate input range and outputs its coordinate values, etc., and a data processing that processes image information from the hand scanner based on information such as coordinate values from the tablet and the position detection circuit. An image input device consisting of a device. (2) A hand scanner comprising: a self-propelled image reading unit; and at least two position indicating units that provide information indicating the position of a predetermined tablet.