JPS62292064A - Manual-scanning small-sized picture processor - Google Patents

Abstract

PURPOSE:To obtain a high resolution by forecasting the output of the next timing based on the time between timing signals previously outputted and outputting a specific number of timing signals in a constant interval untill the next timing signal is outputted. CONSTITUTION:A timing signal generation part 52 counts the time between two moving amount detection signals continuously outputted from an encoder 39, forecasts the output of the next moving amount detection signal and outputs a specific number of timing signals to a control part 51 in a constant interval until the next moving amount detection signal is outputted. And a timing signal generation part 52 generates a CCD exposure timing signal in a constant period by the command from the control part 51 and outputs each kind of timing signal synchronizing with the moving amount detection signal from the encoder 39. Thus a pulse signal which is n-fold of pulse signal by the encoder 39 is obtained and high resolution can be obtained even when a small-sized encoder which has a small number of pulses is used.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field of the Invention] The present invention provides a manual scanning compact image processing device that reads image data by manually moving the reading device itself relative to the surface to be read. Regarding.

[Prior art and its problems] Conventionally, image data processing devices using manual scanning are: - Those that obtain timing signals by reading graduations carved on a scale; - Those that obtain timing signals using a rotary encoder attached to wheels. , there is. However, in the case of (2) above, there is a drawback that a scale is always required, and in the case of (2), it is difficult to obtain a high resolution such as 8 dots/nm from the viewpoint of cost, size, etc.

[Object of the Invention] The present invention has been made in view of the above points, and provides a small manual scanning image processing device that can obtain high resolution even when using a small rotary encoder with a small number of pulses. The purpose is to provide

(Summary of the Invention) The present invention provides a manual scanning compact image processing device in which a timing signal is generated periodically as the device main body moves, and the time between two consecutively output timing signals is counted.
By predicting the output of the next timing signal based on the time between previously output timing signals and outputting a predetermined number of timing signals at regular intervals until the output of the next timing signal, the encoder generates pulses. signal n
This allows twice as many pulse signals to be obtained.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the external structure of a handy copy machine embodying the present invention. In the figure, 1 is the main body of the handy copy machine, for example, width 70+m, thickness 30mm, height 816m.
It has a large width of about 0+n+n, has a reading width of 9JJ, an effective print width of 40mm, and a reading memory length of 200lra.
, a read dot density of 8 dat/mm, and a printed dot density of 8 dot/ms.

The handy copy machine main body 1 is provided with a head portion HA for reading and printing at its tip, that is, its lower end in the figure.

The head portion HA is smaller in width and thickness than the main body 1 of the handy copy machine 1, and a stepped portion is formed between the head portion HA and the main body 1 of the handy copy machine. The front end surface of the head section HA is formed obliquely from the center toward both sides, and the reading section 2 and the printing section 3 are provided on the sloped section 1a11b, respectively. The handy copy machine main body 1 is also provided with a power/read/print switch 4 at the lower part of the - side as shown in the figure, and operation keys 5a, which are opposite to each other on both the front and back sides.
5b is provided. These operation keys 5a and 5b are flat and
It is formed into a plate shape, and the handy copy machine main body 1 can be moved back and forth by holding the top surface between the hands. The power supply/read/print changeover switch 4 is used to designate power on/off, reading, and print operation modes, and is configured to turn on the power when each of the reading and print modes is designated. Further, the Handy Copy i main body 1 is provided with a clear key 6 and a density adjustment volume 7 for adjusting print density at the end opposite to the side where the reading section 2 and printing section 3 are provided.

The clear key 6 is used to erase the image memory when reading an image, and is used to locate the beginning of image data when printing. In addition, the handy copy machine body 1 is provided with a power LED 13 in the vicinity of the reading section J, and a memory LED 9 and a speed warning LED on the upper end side of the front part in the figure.
O is placed.

When reading a document using the above-mentioned handy copying method, the power/read/print selector switch 4 is set to the 'read' position. When the power/read/print selector switch 4 is set to the ``reader'' position, the power is turned on and the light 111ED8 lights up. In this state, the reading section 2 is brought into contact with the document surface and moved while pressing the operation keys 5a and 5b.

And I read it ii! 1 To print out iWA data, press N source/read/print selector switch 4.
After switching to the ``Print'' position, bring the print section 3 into contact with the printing paper A (print paper), and press the operation keys 5a, 5b.
Handy copying is performed by moving the main body 1 in the direction of arrow X while pressing .

Next, details of the reading section 2 and printing section 3 provided in the main body 1 of the Handico will be explained with reference to FIGS. 2 and 3. As shown in FIGS. 2(a) and 2(b), the reading section 2 is located within the handy copy paper body 1 on the sloped surface 1a.
A light source 11 consisting of an LED array is disposed adjacent to the
This light 11!11 illuminates the original document B to be read through a reading window 12 provided on the sloped portion 1a. In addition, a light guide 13 is provided in the handy copy rock main body 1 and extends upward from the vicinity of the slope portion 1a, and a lens 14 and a -dimensional image sensor 15 are sequentially arranged at a predetermined interval on the upper end side of the light guide 13. maintained and placed.

The above-mentioned -dimensional image sensor 15 has, for example, a one-dimensional COD of 1024 bits, of which 320 bits (8 dO
t/ml and 40 mm width) is used. The lens 14 and the -dimensional image sensor 15 are mounted on the support 1G.
is held in place by the

This support body 16 is fixed to an inner frame 17 provided inside the handy copy machine main body 1 at a predetermined interval. An electronic component mounting section 18 and a battery storage section 19 are provided adjacent to the support body 16, and the electronic component mounting section 1
The above-mentioned -dimensional image sensor 15 is connected to a circuit board 20 mounted on the circuit board 8 . Further, the clear key 6, the density adjustment volume 1, etc. are connected to the circuit board 20.

A thermal head 21, an ink ribbon roll 22, a constant speed feed roller 23, and an ink ribbon take-up roll 24 are provided within the inner frame 17, and rubber rollers 2Sa, 25b, Gear 26.
27.28.29.30 are provided. The rubber rollers 25a, 25b are rotatably attached to the inner frame 17 via a shaft 31, and their outer circumferential surfaces protrude outward from cutouts 32 provided on both sides of the slope portions 1a, 1b. ing. The gear 26 is coaxially fixed to one side of the rubber roller 25a. This gear 2
6 is formed to have a smaller diameter than the rubber roller 25a, and is connected to the gear 28 with an intermediate gear 27 interposed therebetween. This gear 28 is connected to the continuous feed roller 23 via a one-way clutch 33.
is connected to the shaft of

This one-way clutch 33 is configured to transmit the rotation of the primary side to the secondary side only during printing operation, that is, the rotation of the gear 28 to the constant velocity feed row 523 side.

An encoder disk 34 is attached to the primary side of the one-way clutch 33, and the encoder disk 34 is attached to the primary side of the one-way clutch 33. ! 28 and encoder disk 34 are adapted to rotate together. This encoder disk 34 has a plurality of slits 35 as shown in FIG.
are arranged radially at regular intervals. and,
The LED 36 and the photo sensor 37 are arranged to face each other with the encoder disk 34 in between. In this case, the LED 3G is mounted inside the handy copying machine main body 1, and the photo sensor 37 is mounted inside the inner frame 17, as shown in FIG. 2(a). A through hole 38 is provided in the portion of the inner frame 17 where the photosensor 37 is attached, and the projected light from the LED 36 passes through the slit 35 of the encoder disk 34 and the through hole 38 and enters the photosensor 37. It looks like this. That is, the encoder 39 is composed of the encoder disk 34, the LED 313, the photosensor 37, and the like.

Further, on the slope portion 1b of the print section 3, a third
As shown in the figure, a print window 41 and an ink ribbon guide window 42 are provided in parallel. In this case, print window 4
1, the ink ribbon guide window 42 is located inside. The heat generating portion 21a of the thermal head 21 is inserted into the print window 41, and positioned so that its tip end surface slightly protrudes from the slope portion 1b.

As shown in FIG. 2(b), a slit 43 is provided in the stepped portion of the handy copy machine body 1 on the side where the operation key 58 is provided, and the thermal transfer ink drawn out from the ink ribbon roll 22 is provided with a slit 43. The ribbon 22a is drawn out of the handy copy machine main body 1 through the slit 43, and then passes through the heat generating part 21a of the thermal head 21 and passes through the ink ribbon guide window 42 into the handy copy machine main body 1.
be introduced inside. In this handy copy, the ink ribbon 22a introduced into the interior of the main body 1 is guided by a shaft 31, an ink ribbon guide 44, and a constant speed feed roller 23, and is wound onto an ink ribbon take-up roll 24. Furthermore, the above-mentioned handy copy machine main body 1 is
As shown in FIG. 2(b), the surface on which the operation key 5b is provided is formed so that it can be opened and closed by a hinge 45,
The ink ribbon 22a can be replaced, the interior can be inspected, etc.

Next, the configuration of the electronic circuit formed on the circuit board 20 will be explained with reference to FIG. 4. As described above, the encoder 39 is composed of the encoder disk 34, the LED 3B, the photo sensor 37, etc., and outputs a pulse signal corresponding to the amount of movement of the handy copy machine main body 1, that is, a movement amount detection signal.

The movement output from this encoder 39! I) The fft detection signal is sent to the timing signal generator 52 and speed detector 53. The speed detecting section 53 detects the state based on the output signal of the encoder 39 when the moving speed of the main body 1 of the handy copying machine exceeds a set value, and turns on the speed warning LED 10 in the LED section 50. In addition, the control section 51
includes the power/read/print switch 4, operation keys 5a, 5b, clear key 6, and density adjustment volume 7.
An operation signal is given from keys and switches 54 such as the like, and a temperature detection signal is given from a temperature sensor 55 that detects the temperature of the thermal head 21. Furthermore, the control unit 5
1 has a power supply voltage detector inside, although it is not shown. Then, the control unit 51 controls the LED according to the input signal.
The illumination control of the power supply LED 8 and the memory LED 9 in the section 50 and the illumination control of each other section. 71, and also gives an operation command to the timing signal generator 52 when the reading mode or print mode is specified by the power supply/reading 7' print changeover switch 4.

This timing signal generating section 52 operates according to a command from the control section 51, and counts the time between two movement 171 amount detection signals successively output from the encoder 39, as will be described in detail later. The output of the movement amount detection signal is predicted, and a predetermined number of timing signals are output to the control unit 51 at regular intervals until the next movement amount detection signal is output. Further, the timing signal generating section 52 generates a COD exposure timing signal of a constant period according to a command from the control section 51, and also generates a predetermined number of read timing signals a in synchronization with the movement amount detection signal from the encoder 39. parallel conversion signal b
, a "+1" signal, a set signal, and a +1 row instruction timing signal. The COD exposure timing signal outputted from the timing signal generation section 52 is sent to the one-dimensional image sensor 15, the reading timing signal a is sent to the A/D conversion section 57, and the serial/parallel conversion signal is sent to the serial/parallel conversion section 58. ``+1
” signal is the address counter 61 and address selector 6
2, the set signal is sent to the address counter 61, and the +1 row instruction timing signal is sent to the adder circuit 63, respectively. The -dimensional image sensor 15 reads the reflected light from the original IB in synchronization with the ccoi optical timing signal, and outputs it to the A/D converter 57 via the amplifier 56. This A/
The D converter 57 converts the input signal into a black and white 211i signal using the reading timing signal a, and outputs it to the serial/parallel converter 58. This serial/parallel conversion signal is converted into a parallel signal every 8 bits, for example, and outputted to the image data memory 60 via the data selector 59. Further, the data selector 59 has a data line connected to the control section 51, and a select signal d from the control section 51 causes the serial/parallel conversion section 59 to
8 or the control section 51 is selected. Write address and digit address of the above image data memory 60)
is indicated by the output of the address counter 61 or the adder circuit 63 and specified via the address selector 62. Further, the read address of the image data memory 60 is given from the ill 111 section 51 via the address selector 62.

The address counter 61 includes a timing signal generator 5
The row and column addresses are 19 by counting the timing signals from 2, and the address data is sent to the address selector 62 and the adder circuit 63.

The adder circuit 63 temporarily stores the input address data in an internal register, and increments the row address by +14 in response to a "+1 row instruction" from the timing signal generator 52. The row and column addresses output from this adder circuit 63 are returned to its own input terminal and also sent to the address selector 62.

This address selector 62 selects the address counter 61 and adder circuit 63 side or the control unit 51 in response to a select signal e from the control unit 51, and selects the address counter 61 and the adder circuit 63 side or the control unit 51 in response to a [+1] signal from the timing signal generation unit 52. Select one of the adder circuits 63,
Specify the address of the image data memory 60. In this case, the address selector 62 selects the address counter 61 and the adder circuit 63 by the select signal e from the control unit 51.
When the +1J signal from the timing signal generator 52 is at a high level, the address counter 61 is selected, and when the signal is at a low level, the adder circuit 6 is selected.
Select 3.

After one line of image data is written into the image data memory 60, a set signal is sent from the timing signal generator 52 to the address counter 61. When the set signal is output from the timing signal generating section 52, the address data held in the register in the adder circuit 63 is set in the address counter 61 in preparation for writing the next row.

When the reading of the original document is completed and the mode is switched to the print mode, the IT+111M1 section 51 transfers the data stored in the image data memory 60 via the five data selectors in response to the movement m detection signal from the encoder 39. Read sequentially. This control section 51 controls the image data memory 6
When the image data is read from 0, the energization time is set based on the head temperature from the temperature sensor 55, the detection data of the power supply voltage detector, and the value of the density adjustment volume 7, and is output as print data to the thermal head drive circuit 64. do. When the thermal head drive circuit 64 receives print data from the control section 51, the timing signal generation section 52
The thermal head 21 is driven in synchronization with a timing signal from.

Next, details of the timing signal generating section 52 will be explained with reference to FIG. The moving layer detection signal sent from the encoder 39 is transmitted to the set terminal S1 of the D-type flip-flop 71, the second register 74, the register 75, and the set terminal S of the D-type flip-flop 70 (3).

It is input to AND circuits 71 and 79. The flip-flop 71 is a transfer 171! from the encoder 39! It is set by the detection signal, and then outputs a set signal in synchronization with the clock pulse φ from the control section 51.

The output signal of this flip-flop 71 is input to the reset terminal R of the first counter 72. The first counter 72 counts the clock pulse φ and outputs the counted clock pulse φ to the second register 74 . The input data is latched in synchronization with the output of the encoder 39 and output to the second register 74.

After being cleared by an operation command from the control unit 51, the second register 74 reads the count and output of the first counter 72 in synchronization with the output signal of the encoder 39, and reads the input p and output of the arithmetic circuit 81. It is output to the first register 75. This register 75 is cleared by an operation command from the control section 51, and then reads an input signal in synchronization with the output signal of the encoder 39, and outputs it to the input terminal of the arithmetic circuit 81. This arithmetic circuit 81 performs a 2iIl calculation of r (2D2-Os)/4J, for example, when the content of the first register 75 is Dr and the content of the second register 14 is D2, and outputs the result of the operation to the coincidence circuit 82. do. That is, the arithmetic circuit 81 predicts and calculates the output timing of the next pulse signal to be outputted from the encoder 39, divides the predicted time into four parts, and outputs the divided four parts to the matching circuit 82.

Further, in the flip-flop 76, an operation command from the control section 51 is inputted to the reset terminal R. When the flip-flop 76 is set or reset,
The Q output signal changes in synchronization with the clock pulse φ applied to the clock terminal GK, and the output signal is inputted to the set terminal S of the D flip-flop 78 via the AND circuit 77. This flip-flop 78 outputs a delayed signal from the Qi element in synchronization with the clock pulse φ by 1.1 times as the flip-flop 76, and the output signal is taken out via an AND circuit 79 and sent to an OR circuit 83. The signal is input to the reset terminal R of the ternary counter 91, the set terminal S of the D-type flip-flop 96, and the AND circuit 97, as well as to the coincidence circuit 82 via the delay circuit 73. The flip-flop 9G has a control section 51
When the clock pulse φ is reset by an operation command from and then set by the output of the AND circuit 79,
A 1'° signal is output to the AND circuit 97 in synchronization with .

Thus, the minus number circuit 82 is supplied with the count contents of the second counter 84 which performs a count-up operation in response to the clock pulse φ. The minus number circuit 82 has an internal register, and when the signal applied via the delay circuit 73 becomes 1'', the calculation output of the calculation circuit 81 is read into the internal register, and the result is a match with the second counter 84. A comparison is made. The coincidence output of the minus number circuit 82 is output to the OR circuit 83.
, and is sent to the control section 51 and resets the second counter 84.
Output to. The read timing signal generation circuit 85 includes:
- generates a fixed number of read timing signals a each time the coincidence output of the number circuit 82 is applied to the OR circuit 83;
The signal is output to the A/D converter 57. Further, the serial/parallel conversion signal generation circuit 86 generates a predetermined number of serial 7/parallel conversion signals b every time the coincidence output of the minus number circuit 82 is given, and outputs the serial 7/parallel conversion signal 58 and the address counter It is output to the timing signal generation circuit 87. This address counter timing signal generation circuit 8
7 is synchronized with the above serial/parallel conversion signal.
+1" signal and outputs it to the address counter 61 and address selector 62. Further, 88 is an exposure timing signal generation circuit, which always generates an exposure timing signal of a constant period based on the @initial wave number of the crystal oscillator 89, -
Output to the dimensional image sensor 15.

Further, the output signal of the matching circuit 82 is input to a ternary counter 9.
1 to the clock terminal CK of AND circuit 9.
2 to the reset terminal R of the R-3 flip-flop 93. The above-mentioned ternary counter 91 is connected to the matching circuit 8.
When the output of 2 is counted by r3J, a "1'' signal is outputted and inputted to the set terminal S of the flip-flop 93. The output signal of this flip-flop 93 is sent to the AND circuit 92
and is input to the inverter 94. Then, this Japanese/Western output and the output of the AND circuit 97 are input to the AND circuit 95, and the output is sent to the control section 51 as an error signal ERR.

That is, the ternary counter 91 divides the output of the coincidence circuit 82 into 3
When counting, the flip-flop 93 is set and the output of the error signal ERR is prohibited, but when the count value of the ternary counter 91 is other than r3J, the AND circuit 79 is set.
When the output becomes "1", an error signal is output from the AND circuit 95.

Next, the operation of the above embodiment will be explained. When reading information such as characters and images recorded on a manuscript, first
Switch the reading/printing switch 4 from the ``power off'' position to the ``reading'' position. When you switch the power/reading/printing switch 4 to the ``reading'' position, the power is turned on and each circuit is turned on. When the unit enters the operating state, an operation command is sent from the control unit 51 to the timing signal generation unit 52. Also, at this time, the control unit 51 lights up the power LED 8 in the 120 unit 50 to indicate that the power is turned on.

In this state, as shown in FIG. 2(b), the user brings the reader 8 (12 formed in the head section) (A) into contact with the desired reading surface of the document B, and presses the operation keys 5a and 5b. while moving the handy copy machine body Afj toward the front on the operation key 5a side.At this time, the projected light from the light 111 is irradiated onto the original 8 surface through the reading window 12 provided on the sloped portion 1a1. Light enters the one-dimensional image sensor 15 via the light guide 13 and lens 14. On the other hand, as the handy copy machine main body 1 moves, the rubber roller 25a
, 25b rotate in contact with the surface of the document 8, and the rotation is transmitted to the gear 28 via gears 26 and 27. and,
As the gear 28 rotates, the encoder disk 34 rotates at a speed proportional to the moving speed of the handy copy filter body 1. This rotation of the encoder disk 34 causes L
Photo sensor 3 from E D'36 through slit 35
The light sent to the photo sensor 3 is transmitted to the photo sensor 3.
A pulse signal is output from 7. The pulse signal outputted from this photosensor 37 becomes the output of the encoder 39 in FIG.
and is sent to the speed detection section 53. The timing signal generating section 52, the details of which are shown in FIG.
is cleared and flip-flops 76, 78 are reset. In addition, the exposure timing signal generation circuit 8
8 always generates a COD exposure timing signal of a constant period and outputs it to the -dimensional image sensor 15. In this state, when the encoder 39 sends the first movement detection signal to the handy copy machine main body 1 as shown in FIG. 6(a), the flip-flops 71 and 76 are set.

The flip-flop 71.7.theta. outputs the "'1" signal when the clock pulse .phi. is applied thereafter.

The first counter 72 is reset by the output signal of the flip-flop 71, and thereafter, the first counter 72 performs a count-up operation by the clock pulse φ. The first counter 72 measures the time between each pulse signal output from the encoder 39 by counting the clock pulses φ.

Thereafter, when the second pulse signal is output from the encoder 39, the count value of the first counter 72 is set in the second register 74 as shown in FIG. 6(b). After the contents of the first counter 72 are transferred to the second register 74, the first counter 72 is reset by the output of the flip-flop 71 and starts counting again from "0". Further, the flip-flop 78 is set by the second pulse signal from the encoder 39, and then its Q output is sent to the AND circuit 79 when the clock pulse φ is applied. Therefore, until then, AND circuit 79
output is prohibited. When the third pulse signal is output from the encoder 39 in this state, the second register 7
The held data of 4 is transferred to the second register 14, and the count value of the first counter 72 is set in the second register 74. Then, the contents D1 of the above-mentioned Lujista 75
The contents D2 of the second register 14 are sent to the arithmetic circuit 81, and the arithmetic circuit 81 performs an arithmetic operation of r(2D2-Dl)/4J.

This arithmetic circuit 81 predicts the output timing of the next pulse signal output from the encoder 39, divides the predicted time into four parts, and outputs the divided four parts to the matching circuit 82. That is, the arithmetic circuit 81 supplies time data to the matching circuit 82 so that three timing signals are outputted from the matching circuit 82 between each pulse signal outputted from the encoder 39 . Further, the third pulse outputted from the encoder 39 is outputted from the AND circuit 79 and passed through the OR circuit 83 to the sixth pulse.
As shown in FIG.
Sent to 4. This second counter 84 is reset by the output of the OR circuit 83, and then performs a count-up operation by the clock pulse φ.

, and the output signal of the AND circuit 79 is delayed by the delay circuit 73 for a predetermined time i! ! The signal is then sent to the matching circuit 82. The -number circuit 82 reads the calculation result of the calculation circuit 81 into an internal register in synchronization with the signal from the delay circuit 73, and starts a comparison operation with the count value of the second counter 84. The count value of the second counter 84 is sequentially counted up by the clock pulse φ, and when the count value becomes equal to the calculated value held in the coincidence circuit 82, a coincidence signal is outputted from the minus number circuit 82. The coincidence output of the minus number circuit 82 becomes a timing pulse shown in FIG. The signal is sent to an I-take timing signal generation circuit 85 and a serial/parallel conversion signal generation circuit 86. The count of the ternary counter 91 is incremented by "+1" by the matching output of the minus number circuit 82. The second counter 84 is reset every time a match signal is output from the minus number circuit 82, and starts counting again from rOJ.

Further, the read timing signal generation circuit 85 includes a minus number circuit 8
When two output signals are given, a fixed number of read timing signals a are generated each time and output to the A/D converter 57. And serial/parallel conversion signal generation circuit 8
6 is serial/
It generates a parallel conversion signal and outputs it to the serial/parallel conversion section 58 and the address counter/timing signal generation circuit 87.

This address counter/timing signal generation circuit 87 generates "+1" in synchronization with the serial/parallel conversion signal.
" signal is generated and output to the address counter 61 and address selector 62.

Similar operations are carried out thereafter, and if the main body 1 of the handy copy 1 is moving and scanning at a speed within the normal range, the matching circuit 82 is sent to the matching circuit 82 as shown in FIG. ), three matching signals are output. At this time, the ternary counter 91 has a count value of "3", outputs a carry signal, and sets the flip-flop 93. Therefore, the output of the flip-flop 93 is °1'.

At the same time, the output of the inverter 94 becomes "0", and the gate of the AND circuit 95 is closed. Therefore, in this state, even if the next pulse signal is output from the encoder 39 and input to the AND circuit 95 via the AND circuits 79 and 97, the error signal ERR will not be output. However, if the fourth coincidence signal is output from the minus number circuit 82 before the next pulse signal is output from the encoder 39, the AND circuit 9
2, the flip-flop 93 is reset, the output of the inverter 94 becomes °゛1'°, and the AND circuit 95
is input. Therefore, when the count field of the ternary counter 91 is other than "3", the flip-flop 93 is reset.
・The output of the inverter 94 becomes ˚1˚ and is input to the AND circuit 95. When a pulse signal is output from the encoder 39 in this state, it is output from the AND circuit 95 as an error signal ERR, and tllJ 111
The information is sent to department 51. As a result, the Ill 111 unit 51 executes error processing.

On the other hand, the above-mentioned -dimensional image sensor 15 outputs a signal corresponding to the reflected light from the original surface 18, that is, an image signal, in synchronization with the above-mentioned COD exposure timing signal from the timing signal generating section 52. The output signal of this -dimensional image sensor 15 is amplified by an amplifier 5G and then sent to an A/D converter 57.
sent to. This A/D converter 57 converts the image signal sent via the amplifier 56 into the timing signal generator 52.
The serial/parallel converter 58 converts it into a serial digital signal in synchronization with the read timing signal a from the
Output to. The serial/parallel converter 58 converts the serial input signal into parallel step data in synchronization with the serial/parallel conversion signal sent from the timing signal generator 52 and outputs it to the data selector 59. This data selector 59 is switched to the serial/parallel converter 58 side by selection d from the hll group 51 when the read mode is designated. Therefore, the image data output from the serial/parallel converter 58 is sent to the image data memory 60 via the data selector 59. The address of this image data memory 60 is designated via the address selector 62, but at this time the address selector 62 is switched to the address counter 61 and adder circuit 63 side by the select signal e from the control section 51. Therefore, the write address of the image data memory 60 is specified by the address counter 61 and the adder circuit 63, and the image data output from the serial/parallel converter 58 is sequentially written into the image data memory 60.

Next, the operation when printing out the image data read from the original 1FB as described above will be explained.

If the image data is to be printed out, the N source/read/print changeover switch 4 is switched to the print position.

By switching the power supply/read/print selector switch 4, the print mode is entered, and the control section 51 receives the select signal d.
, e, the data selector 59 and address selector 6
2 to the II te1 section 51 side. In this state, the user brings the printing unit 3 in the head unit HA into contact with the printing paper △ as shown in FIG. . As the handy copy machine body 1 moves, the rubber rollers 25a and 25b rotate, and the rotation causes the gear 26.
27 to the gear 28. As the gear 28 rotates, the encoder disk 34 rotates.
A movement 6 detection signal is taken out from the photosensor 37 in accordance with the movement speed of the handy copy book body 1 in the same manner as in the above-mentioned reading.

Further, the rotation of the gear 28 is transmitted to the constant feed roller 23 via the one-way clutch 33, and further the rotation of the gear 29.
0 to the take-up roll 24. As a result, the continuous feed roller 23 and the take-up roll 24 rotate, and the ink ribbon roll 22 passes through the stepped slit 43, the heat generating part 21a of the thermal head 21, and the ink ribbon guide window 42, and then passes through the shaft 31 and the ink ribbon guide. 44, ink ribbon 22a guided by continuous feed roller 23
Wind up. In this case, the constant continuous feed roller 23 is moved in accordance with the amount of movement of the handy copy machine main body 1 so as not to generate a relative speed between the printing faA and the ink ribbon 22a as the handy copy machine main body 1 moves. Rotate.

On the other hand, the movement amount detection signal outputted from the photosensor 37 is sent to the timing signal generation section 52 as an output signal of the encoder 39. This timing signal generator 5
2 generates a timing signal in response to the movement 6 detection signal sent from the encoder 39 as described above, and outputs it to the control section 51 and the thermal head drive circuit 64. The control unit 51 sequentially specifies the row and digit addresses of the image data memory 60 according to the timing signal from the timing signal generation unit 52, and reads the image data stored in the image data memory 60 via the data selector 59. put out. Furthermore, the control unit 51 controls the head humidity from the temperature sensor 55, the voltage detection signal of the can source pressure regulator, and the i1 degree adjustment volume 7.
The control time is set for the thermal head 21 based on the adjustment value, etc., and uniform data read from the image data memory 60 is output to the thermal head drive circuit 64.

This thermal head drive circuit 641. t, the thermal head 21 is driven according to the control data 60 from the control section 51 and the timing signal from the timing signal generation section 52. By driving this thermal head 21, image data is thermally transferred onto the printing pAA via the ink ribbon 22a. In this case, as the handy copy machine main body 1 moves,
The unused portion of the ink ribbon 22a is fed out from the ink ribbon roll 22, and the used portion printed by the thermal head 21 is sequentially wound up by the ink ribbon take-up roll 24. By moving the Handy Copy Akebono main body 1 as described above, the image data stored in the image data memory 60 is sequentially recorded onto printing paper.

In the above embodiment, a case has been described in which three pulse signals are outputted from the matching circuit 82 between each pulse signal outputted from the encoder 39, but the number of pulse signals can be set arbitrarily.

[Effect of the Invention 1] As detailed above, according to the present invention, in a manual scanning compact image processing device, a timing signal is generated in synchronization with the movement of the device body, and two timing signals are output in succession. Measures the time between signals, predicts the output of the next timing signal based on the time between previously output timing signals, and outputs a predetermined number of timing signals at regular intervals until the output of the next timing signal. Since the encoder outputs n times as many pulse signals as 1q, high resolution can be obtained even when a small encoder with a small number of pulses per pulse is used.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention.
#! FIG. 2(a) is a sectional view showing the internal structure of FIG. 1, FIG. 2(b) is a sectional view taken along the line ■-■ in FIG. 4 is a perspective view showing the main internal components, and FIG. 4 is a block diagram showing the configuration of the electronic circuit.
FIG. 5 is a block diagram showing details of the timing signal light generation section in FIG. 4, and FIG. 6 is a timing chart for explaining the timing signal generation operation. 1... Handy copy machine body, 2... Reading section, 3...
...Print section, 4...Power/read/print switch, 5a, 5b...Operation key, 6...Clear key, 7...Density adjustment volume, 8...Electronic aLED
, 9...Memory LED, 10...Speed warning LED,
DESCRIPTION OF SYMBOLS 11... Light source, 12... Reading window, 13... Light guide, 14... Lens, 15... -dimensional image sensor, 16... Support body, 17... Inner frame, 18 ...Electronic component mounting section, 19...Battery storage section, 20...
Circuit board, 21... Thermal head, 22... Ink ribbon roll, 23... Continuous feed roller, 24...
・Ink ribbon winding roll, 25a, 25b...Rubber roller, 26-30...1111g car, 32...
Notch, 33... One-way clutch, 34... Encoder disk, 35... Slit, 36... LED
, 37... Photo sensor, 38... Through hole, 39...
- Encoder, 41... Print window, 42... Ink ribbon guide window, 43... Slit, 44... Ink ribbon guide, 45... Hinge, 51... Control unit, 52... Timing signal generation unit, 53... Speed detection unit, 54... Switch group, 55... Temperature sensor, 56... Amplifier, 57... A/D conversion unit, 58...
...Serial/parallel converter, 59...Data selector, 60...Image data memory, 61...Address counter, 62...Address selector, 63...
・Adder circuit, 64... Thermal head drive circuit, 7
2... First counter, 73... Delay circuit, 74
...Second regisk, 75...Second regisk, 81.
... Arithmetic circuit, 82 ... Coincidence circuit, 84 ... Second counter, 85 ... Read timing signal generation circuit, 86
...Serial/parallel conversion signal generation circuit, 87...
・Address counter timing signal generation circuit, 88・
...Exposure timing signal generation circuit, 91...Ternary counter. Applicant's agent Patent attorney Takehiko Suzue (b) No. 2 (a) Illustration procedure amendment Showa condolence 2. Yu 20th, Commissioner of the Japan Patent Office, Black 1) Mr. Akio 1, Indication of the case, Patent Application No. 1983-134894 2, Name of the invention, Manual scanning compact image processing device 3, Person making the amendment Relationship with the case Patent applicant (144) Casio Computer Co., Ltd. 4, Agent UBE Building 7, 3-7-2 Kasumigaseki, Chiyoda-ku, Tokyo;
Contents of amendment (1) The following text is added after "..." written on the second line of page 17 of the specification. Here, an arithmetic expression r2D2-DL for predicting the output timing of the pulse signal to be outputted next from the encoder 39 is used.
I will briefly discuss J. First, since the handy copy machine main body 1 is moved manually, it is considered that there is no sudden change in acceleration within a minute range, so the change in time t with respect to the moving distance S within a minute range is 2. Considering that it can be expressed by the following curve, t - a s 2+ b s + c
- Set the formula (1). Here, the above and Dl correspond to the times T1 and T2 required when the handy copy machine main body 1 moves a distance ΔS. Therefore, the current time (at the time of output timing prediction) is t-0,s
-0, it becomes cmo and -72-a(-
Δs)2+b(-Δs) =12)-(Ts
+72)-a(-2Δs)2+b(-2Δs
s ) −= (3). Then, when constants a and b are determined from the above equations (2) and (3), the following is obtained. Here, the output timing of the next pulse output from the encoder 39 is determined by the distance Δ
Since this is the point in time when the pulse has moved S, the time T until the next pulse is output is -T1+2T2 based on equations (1), (4), and (5) above.
・It becomes (6). Then, the above time T1. If T2 is replaced with Dl, Dl, the predicted output timing of the next pulse to be output can be obtained by the equation 2D2-Dl.

Claims (1)

[Claims] In an assisted scanning type compact image processing device that reads image data and processes prints by manual scanning, there is a means for generating a timing signal in synchronization with the movement of the main body of the device, and two signals that are continuously output from this means. means for measuring the time between the timing signals; means for predicting the output of the next timing signal based on the measured time between the previously output timing signals; and the output of the next timing signal based on the prediction. 1. A manual scanning compact image processing device, comprising means for outputting a predetermined number of timing signals at regular intervals.