JP2857162B2 - Image reading device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus that scans an original image and decomposes the image into pixels to obtain image data. And an image reading apparatus that performs different image processing such as gradation conversion, color conversion, and sharpness conversion in a specific area so that different image processing effect data can be obtained in a plurality of areas in one read image. In particular, in addition to storing read data on a disk, it is also used for a host computer loaded with software such as DTP (electronic publishing system) and WP (word processing) and an image input device connected to an optical file system. The present invention relates to an image reading device suitable for a computer.

2. Description of the Related Art First, Japanese Utility Model Laid-Open Publication No. Sho 62-175365 describes an image input device provided with a scanning unit, an image memory unit, and an image display unit. In this apparatus, the scanning result of the sheet document is displayed on a monitor screen, and when the scanning area (scanning range) is different from the monitor and the quantization is inappropriate, rescanning and display are repeated. I have.

Japanese Unexamined Patent Application Publication No. Sho 60-141070 discloses a thick material having a means for reading an image for each block of a predetermined size, and a means for giving an address for editing to a block read by the reading means. An image reading device capable of reading a document is described. This performs a pre-scan before the main scan and displays the result, and the display can be selectively performed only on the leading or trailing edge of the reading area,
Selection is made by switching buttons. Further, simple editing (rearrangement) can be performed by using the image memory unit and the address number assigning unit by scanning the position a plurality of times.

Furthermore, Japanese Patent Application Laid-Open No. 60-47555 describes an image reading apparatus having image reading means, position information detecting means, and image processing means for performing image processing based on position information. In this method, a transparent sheet having been subjected to lattice stripe etching for position detection is placed on a document, and the reading device is manually moved from above to read the document.

JP-A-61-2694566 describes a digital copying machine having an image editing function having a touch digitizer capable of designating an image editing position on a document, and having a function of extracting a predetermined area and inverting black and white.

Japanese Patent Application Laid-Open No. Sho 62-274985 discloses a transparent touch switch located on a document, a copying machine in which the output of the touch switch is connected to an image editing function control unit, trimming, image movement and the like. Are listed.

The technique disclosed in Japanese Utility Model Application Laid-Open No. Sho 62-175365 cannot perform different image processing in a specific area. It is possible to change the processing of the entire surface, and the result can be confirmed. However, there is a drawback that the protrusion of the image cannot be confirmed before scanning. That is, in the present technology, a preliminary scan is required before the main scan,
Originally, since the positional relationship between the original and the reading device does not have any special means, it may have been set empirically, and there is no guarantee that the preliminary scanning can be performed only once.

In Japanese Patent Application Laid-Open No. 60-141070, different image processing cannot be performed in a specific area, and the image processing result other than the leading or trailing end of the read image cannot be known.

In Japanese Patent Application Laid-Open No. 60-47555, different image processing cannot be performed in a specific area, and there is no means for displaying read image data.

In Japanese Patent Application Laid-Open No. 61-269566, there is a limitation on the reading direction (installation angle) of a document, the setting of a document differs between the time of area designation and the time of image reading, and the disadvantage that the accuracy of the area is reduced and the operation are complicated. There is a disadvantage.

Japanese Patent Application Laid-Open No. 62-274985 has a drawback that a document is limited to a sheet, and an image cannot be edited by specifying a region having an arbitrary angle with respect to the document even on the sheet.

Means for solving the problem It is possible to provide an imaging unit that reads the original image by decomposing the original image into pixels, and it is possible to place the original image at an arbitrary position at an arbitrary angle,
A frame is provided in which a reading target range for regulating the range of the original image to be read is transparent, and a moving amount detecting unit for detecting a moving amount of the imaging unit on the original image is provided. Move, and when the movement amount detecting means detects that the frame has reached the original image range originally surrounded, the original image reading operation is started, and that the frame has deviated from the original image range originally surrounded. Control means for stopping the original image reading operation upon detection.

An image pickup unit is provided for reading an original image by decomposing the original image into pixels, and an image processing unit capable of selectively performing a plurality of types of processing on the original image data read by the image pickup unit is provided. It is possible to put at an angle of
At least a part of the original image has light transmissivity that can be seen through, and an area display means for displaying a specific area over the original image for selectively performing different processing by the image processing means is provided. Was.

An image pickup unit is provided for reading an original image by decomposing the original image into pixels, and an image processing unit capable of selectively performing a plurality of types of processing on the original image data read by the image pickup unit is provided. It is possible to put at an angle of
Coordinate input means having light transmissivity capable of inputting a coordinate value of a desired area of the original image is provided, and light is located in a space where coordinates can be input to the coordinate input means, and at least a part of the original image is transparent. Area display means having transparency and displaying the area input by the coordinate input means over the original image is provided.

Function The imaging unit reads an image, defines a reading range by a frame, the movement amount detection unit detects the movement amount of the imaging unit, and the control unit controls the reading operation, so that any thick object is included. In this manner, an image reading apparatus that can accurately and efficiently read an image of a desired area of an original image can be provided.

Further, the image pickup means reads an image, the image processing means selectively performs a plurality of types of processing, and the area display means displays a specific area over the original picture, so that any original picture including a thick object can be displayed. It is possible to provide an image reading apparatus capable of reading an image and obtaining image data having different image processing effects in a specific area by an accurate, simple and efficient operation.

Further, the image pickup means reads an image, the transparent coordinate input means inputs an area designated by the operator, the area display means displays the specific area over the original image, and the image processing means selectively performs a plurality of types of processing. Accordingly, it is possible to provide an image reading apparatus in which image data having a different image processing effect in a specific region of an arbitrary original image including a thick object has an accurate and efficient input operation and reading operation of the specific region.

Embodiment 1 A first embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 90 denotes a so-called personal computer, which includes a keyboard 91, a plasma display 92, a floppy disk device 95, a CPU (not shown), a main memory, a hard disk device, an external wired interface 94,
It comprises an external wireless interface 93. The external wireless interface converts ultrasonic waves into signal carriers (carrier waves).
Used as

Reference numeral 140 denotes an apparatus main body according to the present invention, which has roughly three functions. The first function is an "original image reading function" which is connected to the computer 90 to scan the image of the original image 10 by raster scanning, decompose the image into pixels, and read the image data to 90.
The second function is an “image recording function” that receives image data of characters and pictures from the computer 90 and records the image data as a permanent image on the recording medium 10. The third function is to connect the computer 90 without connecting it. 140 read any original image alone,
Another optional recording medium is a "copy function" for recording as a permanent image.

The first function and the second function can function not only as described above online but also by the present apparatus alone. At this time, a floppy disk 80 is used for the floppy disk drive 227 as a recording medium as shown in FIG.

These functions can be operated automatically or selectively by button operation. In the following description, the selected operation is referred to as “scanner mode”, “printer mode”, or “copy mode”.

In the copy mode, reading and recording are different in time, so the former stage is called a reading stage, and the latter is called a recording stage.

Reference numeral 10 denotes an original image (note or the like) to be read in the reading stage in the scanner mode or the copy mode, or a recording medium (note or the like) in the recording stage in the printer mode or the copy mode.

The object to be read at the reading stage in the scanner mode or the copy mode is, as shown in FIG.
Not only the original image 10 located immediately below the 200, but also a three-dimensional object (20 in FIG. 2) far from the lower portion of the 200 is possible.

Further, in the image reading or recording operation, a movement operation of the present apparatus is required for scanning, which may be driven by a motor or manually.

(Description of Components and Their Individual Functions) In FIG. 3, the MPU 222 is a 32-bit microprocessor unit, for example, μPD70632R manufactured by NEC Corporation is suitable.

Reference numeral 221 denotes a bus line composed of address, data, control, and power signals.

Although an actual design requires a bus controller and a clock generator, they are omitted for simplicity and clarity in the description of the present embodiment.

PROG-ROM 223 is a ROM (Read Only Memory)
The program of PU222 is stored.

The WORK-RAM 224 is a RAM, a work read / write memory, and is used to load various data and special programs that do not exist in the ROM 223 from the micro floppy disk FD-DRIVE 80 into the memory.

The FONT-MEMORY 232 is a font memory for developing a received character code in the printer mode into a bit pattern.

Reference numeral 231 generates a signal required for an image reading operation, an image processing operation, and an image recording operation, and generates a signal for dynamically switching an image processing mode during image processing. These signals are supplied to other units via the bus 221.

The DMAC 225 is a direct memory access controller. Normally, the bus line 221 is controlled by the MPU 222, but has control to temporarily release the use right to another device such as the FD-DRIVE 227. I will describe in more detail later.

INTC226 is an interrupt controller FD-DRIVE22
It controls interrupt requests from 7 or the like. FONT
−MEMORY232 is the R that stores the font data of the character.
OM.

 BAT229 is a battery and 228 is a power supply.

Reference numeral 180 denotes a main part of an electric circuit that performs a function of reading an original image. In FIG. 2, reference numeral 10 denotes a document substantially flush with the lower surface of the main body 200, and reference numeral 20 denotes an object positioned below the original, for example, a focal plane of a three-dimensional object.

The CCD 182 is a solid-state image sensor, and as shown in FIG.
It is roughly divided into three parts 2a, 182b and 182c. 182a is X
In the direction, a PN junction having a photoelectric conversion function for 2048 pixels and a CCD (charge coupled device) having a charge transfer function are arranged in one dimension. This structure is shown in FIG. The spectral sensitivity is almost uniform for visible light, that is, panchromatic. This is used particularly for reading an original image at high density as monochrome data. This will be described in detail later.

182b has the same structure as 182a, but the light-receiving portions of the 2048 photoelectric conversion elements are repeatedly covered with red (R), green (G), and blue (B) band-pass optical filters as RGBRGBRGB. ing. This is for reading a document by separating the color into R, G, B light. If R, G, B are one set of pixels, there are 682 effective color read images.

In 182c, 1024 × 1024 photoelectric conversion elements are two-dimensionally arranged, and R, G, B filters are repeatedly arranged. Therefore, R,
Assuming that G and B are one set of pixels, there are 341 × 341 effective color read pixels. This structure is shown in FIG. This is used for reading a three-dimensional subject or a document of a large size even in a planar shape.

CCD182 is 182a, 182b, 1 in a manner known in CCD-DRIVE185.
82c driven individually.

However, although 182a and 182b are driven at the same time and the read data is sent to IP 280 at the same time, 182c is not driven at the same time as these two parts.

The CCD 182 is fixed on the CCD-DRIVE 185 and is modularized. This module can be moved in the Y direction,
The center of either 182a or 182c can be selected to be located on the optical axis of the lens 190.

Which side to use is automatically selected by an operator moving a slide knob 188 fixed to the CCD-DRIVE 185.

This means that the optical sensor 251 fixed to the main body detects the reflection pattern 251 provided on the 185 (182a comes to the optical axis of the lens 190) or does not detect it (182c comes to the optical axis of the lens 190).
Is transmitted to the MPU 222 as a signal.

Reference numeral 190 denotes a zoom lens, and the focal length is variable by driving a zooming motor ZMOT195. The ZMOT 195 is a servomotor mounted on the outer periphery of the cell of the lens 190 and capable of rotating forward and backward, and having a two-phase encoder for determining the rotation direction. This motor is a controller / driver ZMOT-DRIVE1
96 drives the MPU 222 so that the command focal length is attained.

Focus adjustment is a so-called autofocus method, in which image data captured by the solid-state image sensor CCD182 is sent to the MPU 222 via IP280, and the subject is automatically executed by executing the autofocus program built in the PROG-ROM 223. The lens 190 is a focusing motor FMOT193 so that 10 or 20 and the CCD 182 have a conjugate relationship with the lens 190.
Driven by

The FMOT 193 is a servomotor mounted on the outer periphery of the helicopter 191 fixed to the main body 200, rotatable in normal and reverse directions, and equipped with a two-phase encoder for determining the rotation direction. This motor uses the controller / driver FMOT-DRIVE197 to control the MPU2
It is controlled and driven to be at the 22 command position.

The FL 194 illuminates the document 10 and an LCD panel 121 described later.
Is a fluorescent lamp that performs backlight illumination. The light amount adjustment is an automatic illumination method, and image data captured by the solid-state image sensor CCD182 is sent to the MPU 222 via IP280, and the PROG
-Executes an automatic lighting program incorporated in the ROM 223 to instruct the dimming circuit FL-REGU195, and the FL194 controls the FL-REGU195 so that the optimal light amount is obtained regardless of the imaging magnification.
Driven by

IP280 is a real-time image processing unit that can immediately process image data read by CCD182. As shown in Fig. 6, shading correction, gradation correction, gradation conversion, color correction, color conversion, scaling, trimming, dither processing And various other processes. These processing parameters can be arbitrarily set by the MPU 222.

Therefore, in image processing that performs special image processing, CC
Only shading correction of image data read by D182 is IP
280, the other parameters are set such that substantially nothing is performed, the original image data is stored in an image memory unit 140 described later, and the image processing program in the PROG-ROM 223 is executed, whereby the MPU 222 It is also possible to manipulate data in MEMORY 140.

Furthermore, spatial filter processing, gradation processing, color correction processing,
As for the scaling process and the dither process, as shown in FIG.
281, 282, 283, 284 and 288 correspond, and each circuit block has a plurality of sets of processing circuits. Since different processing parameters can be set for a plurality of sets of circuits, it is possible to apply different image processing to one portion of a certain original image.

The timing and area processing circuit 23 selects one of the plurality of circuits in which different parameters are set.
The selection signal generated during the image processing is received by the selection circuits SEL1-SEL5 of FIG.
SEL5 activates one of a plurality of sets of processing circuits in each processing block.

 IMAGE-MEMORY 140 is a memory for image data.

In the scanner mode, it functions as a buffer memory for temporarily storing original image data read by the CCD 182, and the data in 140 is stored in the bus 221, HOST-I / F241, PLUG242 or ANT24.
The data is transferred to the host computer 90 via 3.

In printer mode, PLUG242 or ANT243, HOST-I
Image data (characters, bit images, graphic vector data) transferred from the host computer 90 via / F241 is temporarily stored, and the character code data and graphic vector data are stored in the code / bit in the PROG-ROM 223. Image conversion program or vector /
It is used to store data after being developed into bit image data obtained by the MPU 222 executing the bit image conversion program.

In copy mode, in the first reading stage
The original image data read by the CCD 182 is temporarily stored, and then functions as a buffer memory for outputting the data stored in the recording stage to a recording unit 160 described later.

A recording unit 160 is a so-called on-demand type ink jet system. This unit performs yellow (Y), magenta (M),
Cyan (C) and black (K) inkjet heads 161Y, 1
61M, 161C, 161K, and a space 165Y, 165M, 165C, 165K of each color partitioned by the ink tank 165 and pipes 162Y, 16
It is tied by 2M, 162C, 162K.

The ink jet heads 161Y, 161, 161C, and 161K include ink discharge nozzles and a drive circuit.

Each head has 2048 ink discharge nozzles and is one-dimensionally arranged in the X direction.

The LCD 121 is a liquid crystal display element in which 512 × 512 pixels are provided two-dimensionally. This element is driven by a drive circuit of a device indicated by LCD-DRIVE 126 so as to be transparent or opaque in pixel units. When the PWR-SUPLY228 is not supplying power, it is completely transparent.

The V-RAM 127 is a RAM for storing display data of the LCD 121, that is, display bitmap data.

The LCD 121 displays the range in which the document 10 is read and the read image on the reading stage in the scanner mode or the copy mode, and displays the image to be recorded on the recording stage in the printer mode or the copy mode.

In addition, various guidance messages and the microphone of the soft input key are displayed.

100 is a digitizer unit for inputting coordinates.
Details are shown in the figure. It has a function of detecting a coordinate value in the X and Y2 directions of a light shield placed on the LCD 121, for example, the tip of a finger, and transferring the value to the MPU 222.

The digitizer unit 100 includes a light-emitting and light-receiving set for detecting a coordinate value in the X direction with a 128 LED array one-dimensionally arranged in the Y direction indicated by X-LEDA 102 and a photodiode array indicated by X-PDA 103, 1 shown by Y-LEDA104
LED array and Y-PDA10 arranged one-dimensionally in 28 Y directions
A light emitting and light receiving set for detecting a coordinate value in the Y direction with the photodiode array indicated by 5 and a circuit 106 for controlling and driving these sets.

Referring to FIG. 5, the LED array 102 includes X-LEDA1, X-L
Light beams indicated by EDA2,..., X-LEDAn-1, X-LEDAn emit light, that is, scan in the X direction, and the PDA 103 performs a light reception detection operation in synchronization with the light.

Therefore, the detection signal is different between when there is no light-blocking object and when there is no light-blocking object, so that the position of the blocking object in the X direction can be detected with the resolution of the number of light beams.

 The same applies to the Y direction.

The digitizer unit 100 and the LCD 121 are integrally assembled to form a module indicated by 105. The module is rotatable around a pivot pin 206 provided at the tip of the main body 200. In FIG. 2, reference numeral 206 denotes a main body 2 indicated by a chain line.
00 represents the folded state.

A light guide 123 has a function of guiding a part of the light emitted from the fluorescent lamp 194 to the folded LCD 121V. 122 is LCD1
R, G, B filters arranged in a mosaic with the same pitch as 21 pixels. Therefore, if the three pixels of the LCD 121V are driven as one unit, a color image similar to that of a color television can be displayed.

201 and 211 are ball-shaped motor rotors for moving the main body 200 in the X and Y directions, respectively. The surface is a magnetic material covered with a rubber material such as chloroprene having a large friction coefficient with respect to paper as a recording medium. In this magnetic material, the center of the ball is the origin of the three-dimensional coordinates, and the point where two of the three coordinate axes intersect the surface of the magnetic ball is p1, p2, where p1, p2 are the bottom of the bowl. A part of the surface of the magnetic ball as the center, that is, a bowl shape is assumed. The edge of the bowl is magnetized so that the N-pole and the S-pole alternate, so that the center of the bottom of the bowl is a symmetrical point of the magnetization pattern. Two sets of these magnetization patterns are provided around each of p1 and p2.

212X and 212Y are magnetizing coils for the motor rotor 211, and have a function of rotating the rotor 211 by a stepping motor method. 212X and 212Y do not simultaneously apply a rotational driving force to 211, and rotate only one of them. However, not simultaneously, 212X can rotate rotor 211 about the Y axis and 212Y can rotate 211 about the X axis. Therefore, when 212X generates a rotational force, the main body 200 is moved in the X direction with respect to the document or the recording medium 10, and when 212Y generates a rotational force, the main body 200 is moved in the Y direction. .

202X and 202Y are magnetizing coils for the motor rotor 201. As in the previous case, 202X can rotate the rotor 201 around the Y axis, and 202Y can rotate the 201 around the X axis. Therefore, when 202X generates a rotational force, the main body 200 is moved in the X direction with respect to the document or the recording medium 10, and when 202Y generates a rotational force, the main body 200 is moved.
Will be moved in the Y direction.

The portions of 212X, 212Y, 202X, and 202Y that are in contact with the respective ball rotors are coated with a low friction coefficient material such as tetrafluoroethylene.

213X is a two-phase magnetic encoder for detecting the amount of rotation of the ball rotor 211 in the X direction (rotation about the Y axis) for positive and negative, and 213Y is the rotation of the ball rotor 211 in the Y direction (X
This is a two-phase magnetic encoder for detecting the amount of rotation about the axis) for positive and negative. Similarly, 203X is a ball rotator
A two-phase magnetic encoder for detecting the amount of rotation of the 201 in the X direction (rotation about the Y axis) for positive and negative. 203Y detects the amount of rotation of the ball rotor 201 in the Y direction (rotation about the X axis) for positive and negative. A two-phase magnetic encoder.

These encoders detect the amount of rotation of the ball rotor, that is, the amount of movement of the main body 200 with respect to the document or the recording medium 10 and generate a feedback signal for more stably controlling the rotation of the motor rotors 211 and 201. Used.

Reference numeral 214 denotes a drive circuit for these two sets of motors. The two sets of motors are usually rotated in the same direction and in the same direction at the same time. Therefore, the main body 200 does not rotate with respect to the document or the recording medium 10, but simply rotates in the X direction or Y direction.
Will move in that direction.

SW1 (253), SW2 (254), SW3 (255), SW4 (456), SW5
(257) and SW6 (258) are touch switches and port 230
The MPU 222 can detect the state through the.

Next, the image processing unit 280 will be described in detail based on FIG. 6, FIG. 11, FIG. 12, and FIG.

285 is a shading correction circuit, and 289 is a multiplexer. 289 normally passes the data obtained by shading the CCD output by 285 to the spatial filter group 281 in the next stage.As a special case, the image data once processed and stored in the image memory 140 is transferred via the bus 221. When performing image processing again at 280, filter to the bus 221 side instead of the 285 side
Used to switch between 281 inputs.

A spatial filter group 281 is provided with a plurality of spatial filter circuits as shown in FIG. 11 in parallel. DIN in FIG. 11 is input data, and the 81 coefficient registers aiJ shown in FIG.
Loaded prior to the processing operation via 21 and set to an arbitrary value.

Therefore, during the image processing operation, these coefficients are multiplied by the input pixel data, and further added and output by the adder circuit ADDER.

A plurality of filters are provided, and coefficients suitable for smoothing (smoothing effect), edge emphasis (improvement of blurring), etc. are set so that the degree of the effect is different.

Therefore, these filters simultaneously input the same data appropriately and output different data.

However, only one of these outputs is input to the next stage gamma correction circuit. The selection is performed by the selection circuit SEL1. Command to SEL1 is timing and area processing circuit 231
Via the bus 221.

This selection (output switching) is possible at any time during reading of one original image.

That is, it is possible to change the spatial filter processing of an arbitrary region of one original image to partially smooth or sharpen the image.

Also, 281 is similarly SEL2, SEL3, SE to 282,283,284,288.
It exerts a selective effect through L4 and SEL5.

A gamma correction circuit group 282 is provided with a plurality of parallel processing circuits. Here, the image density is changed, for example, the background is made white or high-key. One of the plurality of processing result data is transmitted to the next stage of color correction by SEL2.

 Reference numeral 283 denotes a color correction circuit having the configuration shown in FIG.

Here, D1, D2, and D3 are input terminals for R, G, and B signals. The memory matrix indicated by ak can be arbitrarily set via the bus 221 using color correction coefficients.

As shown in the figure, there are a plurality of sets of these coefficient memory matrices, and it is possible to dynamically select which one is used for the color correction operation.

For example, it is possible to output a part of the input image data in full color as it is, to make other parts monochromatic, and to make other parts red and blue.

The scaling circuit group 284 is provided with two circuits for performing the data complementing operation shown in FIG. 13 in series. The first circuit performs scaling in the main scanning direction (X direction), and the output is scaled in the sub-scanning direction by the next circuit.

The shift circuit 286 has a function of partially moving an image.

Reference numeral 288 denotes a dither processing circuit group in which a plurality of dither processing circuits are provided in parallel. As in the case described above, the output is dynamically switched to the next stage by SEL5.

A trimming circuit 287 has a function of blanking input image data (making the same data as white), and exhibits a function of selectively blanking with a signal from the bus 221.

The selection command is sent to the bus 221 by the timing and area processing circuit 231.
Via.

Next, the timing and area processing circuit 231 will be described with reference to FIGS. 7, 8, 9, and 10.

CLK0-OSC is a basic clock oscillator. CLK0 is a base clock for generating other signals.

CLKBR is used for the monochrome imaging unit 182a and the color imaging unit 182b of the CCD 182 to perform a serial reading operation in the X direction (main scanning direction) on a pixel-by-pixel basis.
161K, 161C, 161M, and 161Y are basic clock pulses that are the basis for serially performing a recording operation in the main scanning direction in pixel units.

Further, the CLKLCD is also a unit of image processing time in pixel units when a monochrome image is processed by 280.

CLKCR is a basic unit in which the image processing unit 280 processes color data captured by the color imaging unit 182b of the CCD 182 with CLKBR and the memory stores the image data, and has a frequency of 1/3 of CLKLCD.

LSYNC is a main scanning synchronization signal generated only for one pulse per main scanning line. CLKRD during one LSYNC cycle
Are the number obtained by adding a margin to the number of pixels of main scanning 2048.

HGATE is a main scanning gate signal, and a period during which this signal is high is a main scanning effective period. Therefore, CLKB
There are only 2048 R.

RVGATE is a gate signal in the sub-scanning direction that is read by the image sensor 182, during which LSYNC exists by the number of sub-scanning pixels. This time tay shown in FIG. 8 changes depending on the reading sub-scanning length. This variable time signal is output by the MPU 222 using the VGATE
-By setting the specified data to GEN via bus 221
VGATE-GEN occurs.

WBVGATE, WCVGATE, WMVGATE, and WYVGATE are signals that regulate the recordable periods of the inkjet heads 161B, C, M, and Y, respectively. These four signals are out of phase with each other by t1, t2, t3 as shown in FIG. This is because the inkjet heads 161K, C, M, and Y are arranged at different positions in the sub-scanning direction.

The recording color component data of the pixels of the same portion are sent from the image memory 140 to the heads 161K, C, M, and Y in synchronization with these gate signals. That is, the C, M, and Y inks start the ink ejection with a delay of t1, t2, and t3 with respect to the K ink ejection. In this way, ink of each color is printed overlapping on the same point on the print medium.

The AREA-MEMORY in FIG. 10 includes a region determination process in the case of performing different image processing in the trimming and the region, and a selection circuit SEL1, 2, SEL1, 2, A selection signal is issued to 3, 4, 5, and the trimming circuit 287.

AREA-MEMORY is a memory (RAM) having an address space from addresses A0 to An as shown in the figure and having a one-word (= 1-word) 64-bit configuration. The upper 12 bits du in one word store the position data in the sub-scanning direction, the next 12 bits dm store the position data in the main scanning direction, and the lower 40 bits d1 are the selection circuits SEL1,2,3,4,5. And selection signal data to be supplied to the trimming circuit 287.

Further, 6 bits of du40 bits are allocated to SEL1, 2, 3, 4, and 5, and the remaining 10 bits are allocated to the trimming circuit 287. Therefore, each selection circuit can perform up to 32 selections for each processing block.

Also, since du and dm have 12 bits each, they have 4096 different position data, that is, twice the number of main scanning pixels, and therefore can be identified up to twice the range of the LCD screen.

In the AREA-MEMORY, predetermined data is written by the MPU 222 prior to the reading operation.

Also, a counter X-COUNTER for counting the position of the current image processing in the main scanning direction, and an address for reading the contents to be processed at this position in the main scanning direction (contents of d1 of AREA-MEMORY). Pointer X-POINTER, and
A counter Y-COUNTER for counting the position of the current image processing in the sub-scanning direction, and an address pointer Y-POINTER for reading the contents to be processed at this position in the sub-scanning direction (contents of d1 of AREA-MEMORY). A clear signal is input to each of the CLR terminals to clear them.

AREA-MEMORY is X-POINTER during image processing,
And Y-POINTER.

Y-POINTER is the upper bits of the address signal line,
X-POINTER is assigned a plurality of lower bits of the address signal line.

COMP1 and COMP2 are numerical comparators, and COMP1 is Y
−COUNTER and the top one of the currently read AREA-MEMORY
Compare with 2 bits du, and when they match, add a match signal to Y-POINTER.

Similarly, COMP2 is Y-COUTER and the currently read A
The value is compared with the middle 12 bits dm of REA-MEMORY, and when they match, a match signal is added to CLK of Y-POINTER.

If the values to be written in du and dm are the sub-scanning position (number of pixels) and the main scanning position where the content of the image processing to be performed changes, Y-POINTER or X-POINTER will be The value is incremented, and the value of d1 corresponding to the address is output to the image processing unit 280.

As described above, it can be seen that arbitrary image processing content switching is performed at an arbitrary position in the image main scanning direction and an arbitrary position in the sub-scanning direction during image processing.

[Start and end of operation]

The operation will be described with reference to FIG. MPU2 of this device
Power is supplied to the power supply 22 at all times, and the power supply 22 is in a suspended state so that the program can be executed at any time, that is, at P1 in FIG. The suspended state referred to here means that the MPU 222 is halted (HA
LT; aborted) status.

To change from the center state of the MPU 222 to the RUN state, the module 205 integrating the LCD 121 and the digitizer unit 100 is closed with respect to the main body 200, the LCD 121 is opened from the 121V state, and 121 is the bottom of the main body 200. What is necessary is just to perform manual operation sequentially so that it may become the substantially same plane as a part. When performing this operation, the O / C-SENSOR 251 generates an electromotive force due to a change in the magnetic field of a magnet provided at the opposite end of the pivot 206 of the module 205, and generates a signal to the INTC 226.
Generates an interrupt signal for 22.
When the MPU 222 receives an interrupt signal at the interrupt terminal in the halt state, the halt state is released and the MPU 222 automatically shifts to the run state.

When the MPU 222 is in the run state, that is, when the execution of the program is started, the MPU 222 enters standby processing P2.

To shift the MPU 222 in the run state to the center state, the module 205 may be closed from the open state with respect to the main body. At this time, the O / C-SENSOR 251 generates an electromotive force due to a change in the magnetic field of a magnet provided at the opposite end of the pivot 206 of the module 205, and IN
Issue an interrupt request to TC226, INTC226 is MPU222
Issues an interrupt request to The MPU 222 executes an interrupt service program including a halt instruction and shifts to a sleep state.

If the module 205 is closed while pressing the button 258, the MPU 222 does not shift to the stop state and remains as it is. This is because the LCD 121 may be used as a color display with the joule 205 closed.

[Standby state]

The standby processing P2 monitors the state of the entire apparatus, executes transition to a suspended state, and the like.

P3 is a program for checking whether image data exists in the image memory 140 or not.

P4 is a program for displaying image data on the LCD 121 when there is image data. In this case, a predetermined number of data in the image memory is thinned out and transferred to the V-RAM 127. The LCD display itself is automatically performed by the LCD-DRIVE 126 according to the data in the V-RAM 127. In addition, image data is transferred to DMAC224
DMA transfer is automatically performed by setting 40 as the source and V-RAM 127 as the destination.

P5 is a program for displaying soft keys and the like in a standby state.

The screen of the LCD 121 when executed up to this point is displayed in the image memory
When there is no image data in 140, the state is as shown in FIG. 17, and when there is image data, the state is as shown in FIG.

In these figures, 121d, e, f, g, and h indicate the digitizer unit 100 by touching them on the soft key display with a fingertip or the like.
Detects the coordinates, and the MPU 222 can determine which soft key has been input.

121b is a display of image data, and 121a is a display of a range where valid image data exists.

FIG. 19 shows the display contents of the LCD 121 and how the recording medium 10 looks through the LCD 121 when the apparatus is placed on the recording medium 10 such as a notebook having a picture 10c as shown in FIG. It is shown.

Here, the arrow indicated by 121ay indicates that the existing effective image data is L
This mark is displayed on the LCD 121 to indicate that image data of an undisplayed portion exists in the arrow direction, which is wider than the range that can be displayed on the CD 121.

In the case of FIG. 19, there is an undisplayed image in the Y direction (downward).

To view the undisplayed image data, the user may move the main body 200 in the direction of the arrow while keeping the main body 200 in contact with the document. FIG. 20 shows a state after performing such an operation. In this case, the lower limit value of the lower image data is visible.

What is important here is that the screen displaying the location of the image data in the image memory 140 on the LCD 121 and the recording medium 10 do not move. That is, the display moves (scrolls) on the LCD in the opposite direction to the movement of the main body 200.

This is because the two-phase magnetic encoders 203X, 203Y, 213X, and 213Y determine the relative movement amount between the recording medium and the main body 200 by using the ball rotors 201 and 211.
And the MPU 222 responds accordingly to the V-RAM1.
This is done by rewriting 27 data.

The movement of the main body 200 can be performed manually, or the main body 200 may be motor-driven by the ball rotors 201 and 211.

In the above example, the Y direction has been described, but the X direction has a similar function.

[Mode selection]

This device is roughly divided into scanner mode, printer mode,
As described above, it is possible to selectively operate any one of the three copy modes.

Switching from the standby state to any of these modes occurs when a button (including a soft key) is operated or an operation request signal is issued from the host computer 90. P6 in FIG. This is a program for determining whether or not there is a signal, and when there is a signal, transferring control to a predetermined program according to the signal.

[Print mode]

When there is a print request command from the host computer 90, the process first branches to the routine of P11. P11 is a program for receiving print specifications and print data. The received data is written into the image memory 140 once.

When reception is completed, P12 also enters the program. Here, the data is converted into data in a form that can be recorded by the recording unit 161 according to the print specifications. For example, since the data is received in a character code, a program for developing the data into a bit pattern using the font memory 232 is executed. The expanded data is written to the memory 140 in the same manner as the original code data, but is a different address portion. Therefore, the code data is also stored as it is.

Next, in P13, the developed image data in the memory 140 is written to the V-RAM 127 by DMA transfer. This is the same as the process of P4 in the standby state.

At this time, the screen of the LCD 121 is the same as FIG. 18 or FIG.
It looks like Figure 19. Here, the soft key 121h is displayed.

 P14 represents the manual operation of the operator.

The position and size of an image to be recorded on the recording medium 10 at the stage of a recording operation in P16 described later are the same. Since the pixel density of the LCD 121 is coarser than that of the recording means 161, the display quality is slightly inferior to that to be recorded.

At this stage, the operator can visually check the image position printed on the recording medium 10 on the display image on the LCD 121. For example, when a pattern such as 10c is printed on the notebook 10 in advance as shown in FIG. 19, the main body 200 is temporarily separated from the notebook 10 by thinking about how to obtain a beautiful print without overlapping this print. Can be adjusted. If you move it without releasing it from the note 10, the screen will also scroll, so you can check whether the record runs off the note 10.

P15 is a program for detecting whether or not the soft key 121h has been touched. When the touch of 121h is detected, the process proceeds to the next step P17.

P16 is a process for performing a recording operation. The important thing is P13
Is recorded as a permanent image in the recording magnification 10 at the position indicated by, as in the display image.

In the MPU 222, first, the motor control drive circuit 214 sends the ink jet head 161K to the front end of the display image on the LCD 121 (in FIG. 19,
A movement amount that gives a movement signal that gives an upper part of 121a (broken line portion) is given as a movement signal.

The driving device 214 drives the ball rotors 201 and 211 to rotate, and the encoders 203X, 203Y, and 21 as feedback means.
Since it has 3X, 213Y, the head 161K can move accurately.

When the positioning operation is completed, the driving circuit 214
When the completion signal is input to 2, the MPU 222 outputs a data output command to the image memory 140, a recording start command to the ink jets 161K, 161C, 161M, and 161Y, and a constant speed traveling command in the Y direction to the motor drive circuit 214 to the bus 221.

Here, when the X direction is called main scanning and the Y direction is called sub scanning, the motor rotators 201 and 211 move the main body 200 in the sub scanning direction,
2047 ejection nozzles of each of the inkjet heads 161K, C, M, and Y are arranged in the main scanning direction.

Recording is performed for each main scanning line, and recording is performed serially for 2048 pixels.

When the recording of one line is completed, the head is moved by one pixel with respect to the recording medium 10.

Referring to FIG. 7, FIG. 8, and FIG. 9, CLKBR is a pixel clock when recording pixels of one line are sequentially serially performed one by one, and LSYNC is a line having a period slightly longer than the period of 2048 pixels. HGATE is LYNC
As described above, the gate signal includes the CLKBR included between them by 2048 pixels per line.

This processing is completed when recording of all data in the sub-scanning direction is completed.

Note that the display screen of the LCD 121 scrolls to a position where recording will be performed during the recording operation, similarly to the case of P14.

P17 is a routine for sending a completion status to the host computer 90.

[Scan mode]

When there is a scan request command from the host computer 90, the process first branches to the routine of P21. P21 is a program for receiving a scan specification. The scan specifications are temporarily written to the image memory 140.

When the reception is completed, interpretation and development of the specifications of P22, setting of image processing parameters of the image processing unit 280, data writing of AREA-MEMORY in the area processing circuit 231 for area processing, and the like are executed.

Next, the process proceeds to P23. That is, the operation shifts to manual operation by the operator.

 This process is the same as the above-described process such as P13.

When the scan specification is the simplest, the entire area of the LCD 121, that is, the inside of the frame portion of the module 205 is the reading range. In this case, the LCD screen shown in FIG. 17 is displayed.

For example, if the request is a variable circular trimming request, an LCD screen as shown in FIG. 21 is displayed.

Here, the inside of 121a is an image range to be trimmed and sent to the host computer 90. 121b1,121b2
Are soft keys for reducing and expanding the diameter of the circle, that is, for adjusting the trimming range.

When the scan specification is the simplest, that is, module 205
If the inside of the frame part of the
May be positioned so that the original image that the user wants to read inside is placed.

In case of trimming of the area which is the scan required specification, or if the area is required by different image processing,
It is necessary to perform a manual operation for positioning the actual size area display mark on the LCD 121 so as to overlap a desired portion of the original image.

In some cases, the scan requirement specification requires the operator to use the region itself.

In this case, it is necessary to perform an area input operation using the digitizer unit 100.

In some cases, only the basic shape of the region is transmitted from the host computer 90, and the operator needs to perform an operation to deform the basic shape.

For example, in the case of a request for trimming of a variable circle, if the LCD 121 is placed on the scan target 10 on which the text 10a and the elliptical pattern 10b are printed, the result is as shown in FIG. Here, for example, when it is desired to enlarge the size of the trimming, the soft key indicated by 121b2 may be touched until the size becomes exactly the right size.

 The result is shown in FIG.

Further, similarly to the processing in P14, the positioning operation with respect to the reading target object 10 can be arbitrarily performed by moving the main body 200 while keeping the main body 200 in contact with the target object 10 or away from the same.

When the required scan range is larger than the area of the LCD 121, the result is as shown in FIG.

Here, the display arrow 121a indicates the reading range on the LCD 121, 121aX indicates that the range to be read in the X direction (main scanning direction) is wider than that of the LCD, and 121aY indicates that the reading range is to be read in the Y direction (sub scanning direction). This is an indication that the range is wider than the LCD.

In some cases, the command of the host computer 90 may indicate that the reading range is arbitrarily specified. At this time, the MPU 222
The fixed graphic data in the PROG-ROM and the user-defined graphic data in the WORK-RAM are sent to M127, and the LCD-DRIVE 126 displays them.

In FIG. 25, 121i, 121j, 121k, and 121l are fixed figure data, 121h.
Is the result of displaying the user-defined graphic data.

These display figures are area shapes when trimming or changing the image processing content to be performed in the internal area of those figures, and also serve as soft keys.

Touching this key once will pick it up and touching it a second time will fix it in a similar fashion. 121m is 121n
7 is a display of a result of the touch operation of the first embodiment.

It should be noted that the area such as 121 m is not a menu pick, and the trajectory may be drawn while keeping the fingertip in the digitizer unit 100.

Also, the area graphic created in this way can be registered in the WORK-RAM as a user-defined graphic.

If 121e is touched before the second touch, it will rotate 15 degrees. 121b touches 121e six times after picking,
The result is set by rotating 90 degrees.

If two points are input without picking anything, a quadrangular area having the two points as diagonals is set. 121a is 121aP
This is the result when two points of 1,121aP2 are digitized.

These areas are immediately calculated by the MPU 222, and the image processing parameters of the image processing unit 280 are set, AREA-MEMORY data write in the area processing circuit for area processing is performed, and the scanning operation can be started at any time. Keep it.

The input of a scan area when the range to be read is wider than the digitizable area of the digitizer unit 100 can also be performed on the present apparatus side.

 This method will be described with reference to FIG.

First, as shown in FIG. 27 (a), one point, P1, is digitized. The MPU 222 determines which half of the center the input point is in for each of X and Y, and places 12 on the opposite side to the half to which the point belongs.
Draws a line segment of 1ax, 121ay.

Thereafter, the operator moves the main body 200 in contact with the original image 10. At this time, the result is as shown in FIG. 27 (b). Here, 10a is a printed pattern on the original image 10.

Subsequently, when touching the point p2 shown in FIG.
The fixed lower area frames 121ay and 121ax of FIG.

P25 is a program for detecting whether the soft key 121h has been touched. If a touch of 121h is detected, the flow moves to the next step P27.

P26 is a process for performing a reading operation. The important thing is, first, when there is no trimming process, the module
The second is to read the original image inside the frame of 205, the second is to read the original image just below the trimming range displayed by the LCD 121 at the stage of P23 or P24, and the third is to read the P23 or P24 At this stage, only the original image portion directly below the specific area graphic displayed by the LCD 121 is subjected to specific image processing.

Note that it is also possible to perform specific image processing only on a specific area inside the trimming.

When the read range is equal to or smaller than the area of the LCD 121, the MPU 222 first sends the CCD 18 to the motor control drive circuit 214.
The lens 190 of 2a is conjugated to the edge of the LCD 121 in the sub-scanning direction (17th
A movement amount such as shown on the LCD 121) is given as a movement signal.

When the reading range is larger than the area of LCD121, MPU222
First, the lens 190 of the CCD 182a is supplied to the motor control drive circuit 214.
Of the range in the sub-scanning direction of the LCD 121 (for example,
In the figure, the amount of movement as indicated on the LCD 121a) is given as a movement signal.

The driving device 214 is an encoder 203X, 203Y, 213X, 2 as feedback means for rotatingly driving the ball rotors 201, 211.
With the 13Y, the head 161K can be moved accurately.

When the positioning operation is completed, the driving circuit 214
When the completion signal is input to 2, the MPU 222 issues an imaging start instruction to the CCD-DRIVE 185, a processing start instruction to the image processing unit 280, a data input instruction to the image memory 140, and a constant speed traveling instruction in the Y direction to the motor drive circuit 214 via the bus 221. Output.

Here, when the X direction is called main scanning and the Y direction is called sub scanning, the motor rotators 201 and 211 move the main body 200 in the sub scanning direction,
The imaging elements of the CCDs 182a and 182b are arranged in the main scanning direction.

One main scanning line is performed for each LSYNC, and one line is serially performed in synchronization with CLKBR for 2048 pixels.

Also, the image processing unit 280 converts the data read by the CCD 182 before that for one LSYNC into one main scan line.
In the line, monochrome data is processed in synchronization with CLKBR for 2048 pixels, and color data is processed in serial for CLK682 for CLKCR.

The memory unit writes monochrome data synchronously with CLKBR for 2048 pixels for one main scanning line, and serially writes color data for 682 pixels with CLKCR.

The memory unit 140 is variable word read / write controllable, with 8 bits per word for monochrome, 24 bits per word for color R, G, B, and 32 bits for C, M, Y, K. Is possible.

When the imaging of one line is completed, the CCD 182 moves by one pixel in the sub-scanning direction with respect to the recording medium 10.

Referring to FIG. 7, FIG. 8, and FIG. 9, CLKBR is a pixel clock when recording pixels of one monochrome line are sequentially imaged one by one, and CLKCR is one pixel of recording pixels of one color line. LSYNC is a line synchronization pulse with a period slightly longer than the period of 2048 pixels, and HGATE is a gate containing 2048 pixels of CLKBR included between LYNCs per line. The signal is as described above.

This processing is completed when reading of all data in the sub-scanning direction is completed.

It should be noted that the trimming area display and the area display screen of the specific processing on the LCD 121 are scrolled to a position that will be read during the reading operation as in P14.

Further, the read image data is also displayed immediately on the area display immediately after the line where the image processing is completed. That is, when the main body 200 is moving in the sub-scanning direction, the read images are sequentially displayed, and even during the reading, the read data can be monitored with the naked eye, and the reading operation is stopped if an initial result cannot be obtained. it can.

 Next, several cases will be described.

FIG. 25 shows the previously described operator trimming designation. Thereafter, when 121h is touched, an image reading operation is performed, and a result as shown in FIG. 26 is obtained. Where 121a
This data is stored in the memory unit 140 in the read image of d, 121md, and 121bd.

121a, 121b, and 121m indicate the trimming areas, and these data are not stored in the memory 140 but in the WORK-RAM 224.
Is stored in

FIG. 28 shows an example in which image processing of a specific area is changed without trimming. In Fig. 28 (a), 10d, 10c, 10b, 10x
Is the print content of the document 10 seen through the LCD 121. 12
1a shows a display when a command specifying a range to be subjected to color conversion processing is received from the host computer 90.

FIG. 28 (b) shows a state in which the reading operation has been completed with these settings. It can be clearly understood that the same colors 10b and 10x of the original image are different in the read data displays 121b and 121x.

FIG. 29 shows an example in which an arbitrary designation command is received from the host computer 90, and the operator performs various different image processing in an arbitrary area.

Here, the low key is set in the gamma correction circuit 282 in 121a, the thinning processing is set in the spatial filter circuit 281 in 121m, the color change processing is set in the color correction circuit 283 in 121b, and the remaining part is all This is a case where a standard value is selected in the image processing step.

In the above description, the movement of the main body 200 in the sub-scanning direction in the reading operation and the recording operation, and when the reading range or the recording range is wider than the screen of the LCD 121, the ball rotators 211 and 201 are moved by the MAIN-DRIVE 214.
The example of driving by the above has been described.

When connected to the host computer 90 via the wired interface 242, power is also supplied from the host side, and thus such motor driving is suitable.

On the other hand, when communication is performed through the wireless interface 242 and recording or reading is performed, since only the BAT 229 is the power supply, the operation cannot be performed for a long time. In such a case, the movement of the main body 200 in the sub-scanning direction in the reading operation and the recording operation, and when the reading range or the recording range is wider than the screen of the LCD 121, the movement in the main scanning direction can be manually performed.

P27 is a routine for sending a completion status to the host computer 90.

[File mode]

When the operator presses the button 255, the process first enters step P31.

P31 transfers data from disk 80 to memory 140,
Alternatively, it is a routine for displaying a menu screen as to whether data is transferred from the memory 140 to the disk 80 and written.

P32 is an operation step in which the operator inputs a file name and the like.

P33 has two soft keys "Save" (transfer and write data from memory 140 to disk 80) or "Load"
This is a program for detecting whether (Transfer data from disk 80 to memory 140) is touched.

P34 is a program for executing a "save" (transfer and write data from the memory 140 to the disk 80) process.

P35 is a program that executes a “load” (data transfer from the disk 80 to the memory 140) processing.

[Copy mode]

The copy mode is divided into three steps: setting of a reading mode, execution of a reading operation, and execution of a recording operation.

When the button 254 is pressed, the flow shifts to the process of P41. In P41, a menu screen for copy mode setting is displayed on the LCD 121. Since the sharpness adjustment, the gradation adjustment, the density adjustment, the color adjustment, the scaling ratio setting, and the like use a conventionally known method, a description thereof will be omitted. The trimming and the setting of the specific area are the same as the processing of P23 and P24 described above.

Note that the input of the attribute of the specific area will be described with reference to FIG. 29.When the soft key 121e is touched after inputting the area, processing that can be selected for each image processing step, for example, in the gamma correction circuit step, high contrast, low contrast, A selection menu appears in the form of high key, low key, and can be input in association with an area.

P42 represents an input operation of the operator using the menu screen.

P43 is a routine for calculating and developing the copy specifications set in P42, setting processing parameters in the image processing means 280, and writing data to the AREA-MEMORY of the area circuit 231 when the trimming has area processing.

P51 is a program executed when the soft key 121h is touched in FIG. 29, and performs a reading operation equivalent to P26.

P61 is a program executed when the soft key 121h is touched in FIG. 18, and performs a reading operation equivalent to P16.

Next, the second, third and fourth embodiments will be described with reference to FIGS. 30 to 36. Here, FIG. 30 is an external view of the second embodiment, FIG. 31 is a cross-sectional view of the mechanism of the second embodiment, and FIG. 32 is common to the second, third and fourth embodiments. 33 is an external view of the third embodiment, FIG. 34 is a cross-sectional view of the mechanism of the third embodiment, FIG. 35 is an external view of the fourth embodiment, and FIG. 36. FIG. 10 is a sectional view of a mechanism section of the fourth embodiment.

Thus, the second, third, and fourth embodiments have a lot in common, and are described together. Also, since they have functions substantially equivalent to those of the first embodiment, they are described in comparison with the first embodiment. .

[Differences from First Embodiment] (1). The function is the same as that of the first embodiment, but a color function, a three-dimensional object imaging function, an autofocus function, a floppy disk drive, and the like are omitted.

(2). As the coordinate input means, a pressure-sensitive digitizer tablet having flexibility and a detection circuit thereof are used in such a manner that two electric conductors which are usually separated from each other are brought into contact with each other.

In addition, a flexible film LCD is used as the area display and image data display means.

(3). The motor drive of the main body including the image pickup device and the recording means can be performed only in the Y direction (sub-scanning direction).

(4). The range of image reading and image recording is the coordinate input range of the digitizer when sub-scanning is automatically driven by the motor,
Limited to the LCD display range.

However, as in the first embodiment, similar to the first embodiment, if a device such as a unit 213X, 213Y for detecting the moving amount of the recording unit or the reading unit with respect to the recording medium or the original to be read is provided. In addition, the image is manually read and the image is recorded, and the operation can be performed beyond the above range as in the first embodiment. However, in the second embodiment, the same operation as in the first embodiment may be performed, but in the third and fourth embodiments, the driving roller 412, the LCD, and the digitizer are interlocked, so that the main body is slightly lifted and manually operated. Sub-scanning must be performed.

(5). In the second embodiment, when the main body including the image pickup device and the recording means is sub-scanned with respect to the original image or the recording medium, a manual operation of manually holding down the ends of the LCD and the digitizer is added. This is unnecessary in the second and third embodiments.

(6). In the first embodiment, the area display means and the coordinate input means move with respect to the document or the recording medium during the image reading operation or the image recording operation, but do not move in the second, third, and fourth embodiments. .

Therefore, during these operations, scrolling of the screen is unnecessary and is not performed.

(7). An LED array is used for document illumination.

(8). The image sensor is only a one-dimensional CCD.

(9). In the second embodiment, a converging optical transmitter array is used as the image forming element, and in the second and third embodiments, the image pickup element is brought close to the original and the coupling element is omitted.

(Ten). A detachable card type RAM with a built-in backup power supply is used as the image memory.

[Description of Components and Their Individual Operations] MPU 222 is a 32-bit microprocessor unit, and 221 is a bus line composed of address, data, control, and power signals.

Although a bus controller and a clock generator are required in an actual design, they are omitted to make the description of the present invention clearer.

PROG-ROM 223 is a ROM (Read Only Memory) which is the MPU
222 programs are stored.

The WORK-RAM 224 is a RAM for working and is a read / write memory.

Reference numeral 231 generates a signal required for an image reading operation, an image processing operation, and an image recording operation, and generates a signal for dynamically switching an image processing mode during image processing. These signals are supplied to other units via the bus 221.

The DMAC 225 is a direct memory access controller. Normally, the bus line 221 is controlled by the MPU 222, but has control to temporarily give up the usage right to another.

The INTC 226 is an interrupt controller that controls an interrupt request.

The FONT-MEMORY 232 is a ROM that stores character font data.

 BAT229 is a battery and 228 is a power supply.

In FIG. 31, FIG. 34, FIG. 36, the main body 400, 600, 800
The original and the recording medium are in contact with the same plane as the lower surface of the document.

The CCD382 is a solid-state image sensor, with a PN junction having a photoelectric conversion function for 2048 pixels in the X direction and a CCD having a charge transfer function.
(Charge coupled devices) are arranged one-dimensionally. This structure is
It is shown in Figure 14. The spectral sensitivity is almost uniform for visible light, that is, panchromatic.

 The CCD 382 is driven in a known manner by the CCD-DRIVE 385.

 Reference numeral 390 denotes a selfoc lens array.

The LEDA 394 is a means for illuminating the original 10, the light amount is controlled by an automatic illumination system, and image data captured by the solid-state image sensor CCD 382 is transmitted to the MPU 222 via the IP 280, and the PROG-ROM 22
By executing the automatic lighting program incorporated in 3, the dimming circuit LEDA-DRIVE 395 is commanded, and the LEDA 394 is driven by the LEDA-DRIVE 395 so as to have an optimal light amount.

The IP 280 is a real-time image processing unit that can immediately process image data read by the CCD 382, and performs various processes such as shading correction, gradation correction, gradation conversion, scaling, trimming, and dither processing as shown in FIG.

These processing parameters can be arbitrarily set by the MPU 222.

Therefore, in image processing that applies special image processing, CCD1
Only the shading correction of the image data read by 82 is IP28
0, and set the parameters so that substantially nothing is performed, store the original image data in the image memory unit 140 described later, and execute the image processing program in the PROG-ROM 223 so that the MPU 222 It is also possible to manipulate data in MEMORY 140.

Further, each circuit block has a plurality of sets of processing circuits for the spatial filter processing, gradation processing, scaling processing, and dither processing. Since different processing parameters can be set for a plurality of sets of circuits, it is possible to apply different image processing to one portion of a certain original image.

The timing and area processing circuit 23 selects one of the plurality of circuits in which different parameters are set.
A selection signal generated during one image processing is passed to 230 via a bus 221 and one of a plurality of sets of processing circuits in each processing block is processed.
This is to activate one.

 IMAGE-MEMORY 140 is a memory for image data.

In the scanner mode, it functions as a buffer memory for temporarily storing original image data read by the CCD 382, and the data in 140 is stored in the bus 221, HOST-I / F241, PLUG442 or ANT4
The data is transferred to the host computer 90 via 43.

In printer mode, PLUG442 or ANT443, HOST-I
Image data (characters, bit images, graphic vector data) transferred from the host computer 90 via / F241 is temporarily stored, and the character code data and graphic vector data are stored in the code / bit in the PROG-ROM 223. Image conversion program or vector /
It is also used to store data after being developed into bit image data obtained by the MPU 222 executing the bit image conversion program.

In copy mode, in the first reading stage
The original image data read by the CCD 382 is temporarily stored, and then functions as a buffer memory for outputting the data stored in the recording stage to a recording unit 361 described later.

A recording unit 361 is a so-called on-demand type ink jet system. A pipe 362 is connected to the ink tank 365.

The ink jet head 361 has a built-in ink discharge nozzle and drive circuit.

Each head has 2048 ink ejection nozzles and is one-dimensionally arranged in the X direction.

The LCD321 / 521/721 is a liquid crystal display element in which 512 × 512 pixels are provided two-dimensionally. This LCD has a structure in which a liquid crystal material is sealed between two flexible transparent resin films on which transparent electrodes are deposited in a grid pattern. LCD321
/ 521/721 is driven by a known drive circuit represented by LCD-DRIVE 126 so as to be transparent or opaque in pixel units. PWR
-When SUPLY228 is not supplying power, it is completely transparent.

The V-RAM 127 is a RAM for storing display data of the LCD 312/521/721, that is, display bitmap data.

The LCDs 321, 521, and 721 display the reading range of the document 10 and the read image on the reading stage in the scanner mode or the copy mode, and display the image to be recorded on the storage stage in the printer mode or the copy mode.

It also displays various guidance messages and soft input key marks.

300/500/700 is a digitizer unit for coordinate input, a flexible transparent resin film in which transparent electrodes are deposited in a grid pattern.
A thin transparent insulator is interposed between the two electrodes.

Therefore, when pressed with the tip of a finger or the like, the electrodes on the two films come into contact, the matrix coordinate detection circuit 306 detects the coordinate values in the X and Y2 directions, and transfers this value to the MPU 222.

[Regarding Sub-Scanning of Second Embodiment] In FIG. 31, reference numeral 412 denotes a motor shaft fixed to the main body 400 (not shown) for moving the main body 400 in the Y direction to perform sub-scanning.

A spool 411 for winding the LCD 321 and the digitizer 300 is fixed to the shaft 412. The flexible LCD 321 and the left end of the digitizer 300 are fixed to the spool 411.

The motor itself is fixed to the main body 400 as described above.

Therefore, if the right end 300a of the digitizer 300 is pressed with a finger from above so as not to move with respect to the document 10,
When the motor shaft 412 rotates clockwise, the main body 400 is moved rightward in the Y direction, and performs a sub-scanning operation.

In addition, the sub-scanning can be manually performed by moving the main body 400 to the left while holding down the portion 300a. Further, if the LCD 321 and the digitizer 300 have appropriate buckling resistance, manual scanning can also be performed on the right side.

Reference numeral 451 denotes a two-phase magnetic encoder for detecting the amount of movement of the digitizer 300 for positive or negative. A magnetic coating is applied to a portion 300b of the digitizer 300 that contacts the edge 451.

Reference numeral 452 denotes an optical sensor for detecting the position where the digitizer 300 is completely involved, and a reflector 300c is provided at the right end of the digitizer 300.

[Regarding Sub Scanning of Third Embodiment] In FIG. 34, reference numeral 412 denotes a motor shaft fixed to the main body 600 (not shown) for moving the main body 600 in the Y direction to perform sub scanning.

A sub-scanning drive roll 611 made of a rubber material having a large friction coefficient is coaxially fixed to the shaft 412. The weight of the main body 600 acts on the roll and the original or the recording medium, and when the motor rotates, the main body 600 moves with respect to the original or the recording medium.

In addition, a flexible LCD 52 having the same diameter is provided around the outer periphery of the roll 412.
1. A roll 618 for driving the digitizer 500 is provided by friction coupling. 619 is a pinch roll.

Therefore, when the motor shaft 412 rotates clockwise, the main body 600
Moves to the right, the LCD 521 and the digitizer 500 move to the left with respect to the main body 600, and does not move at all with respect to the original or the recording medium.

Reference numeral 451 denotes a two-phase magnetic encoder for detecting the amount of movement of the digitizer 500 for positive or negative,
A magnetic coating is applied to a portion 300b that comes into contact with the substrate.

Reference numeral 452 denotes an optical sensor for detecting the reference stop position of the digitizer 500, and a reflector 500c is provided at the right end of the digitizer 500.

Further, since a flexible LCD 521 and a driving roll 618 for the digitizer 500 are provided, there is no fear of buckling, and manual scanning can be performed on either the left or the right.

[Regarding Sub Scanning of Fourth Embodiment] In FIG. 36, reference numeral 412 denotes a motor shaft fixed to the main body 800 (not shown) for moving the main body 800 in the Y direction to perform sub scanning.

A sub-scanning driving roll 811 made of a rubber material having a large friction coefficient is coaxially fixed to the shaft 412. The weight of the main body 800 acts on the roll and the original or the recording medium, and the main body 800 moves with respect to the original or the recording medium when the motor rotates.

In addition, a flexible LCD 72 of the same diameter is provided around the outer circumference of the roll 412.
1. A driving roll 818 of the digitizer 700 is provided by friction coupling.

819 is a pinch roll, 817a and 817b are idler rolls, and 816a and 816b are guide members. These are provided in the third embodiment in order to improve the disadvantage that the original or the recording medium is separated from the LCD and the digitizer, resulting in parallax.

Therefore, when the motor shaft 412 rotates clockwise, the main body 800
Moves to the right, the LCD 721 and the digitizer 700 move to the left with respect to the main body 800, and does not move at all with respect to the original or the recording medium.

Reference numeral 451 denotes a two-phase magnetic encoder for detecting the amount of movement of the digitizer 700 for positive / negative.
A magnetic coating is applied to a portion 700b in contact with.

Reference numeral 452 denotes an optical sensor for detecting a reference stop position of the digitizer 700, and a reflector 700c is provided at the right end of the 700.

Further, since the flexible LCD 721 and the driving roll 818 for the digitizer 700 are provided, there is no need to worry about buckling, and manual scanning can be performed on either the left or right.

SW1 (253), SW2 (254), SW3 (255), SW4 (256), SW5
(257) and SW6 (258) are touch switches and port 230
The MPU 222 can detect the state through the.

According to the first aspect of the present invention, the imaging unit reads an image,
The reading range is defined by the frame, the moving amount detecting means detects the moving amount of the image pickup means, and the control means controls the reading operation, so that an image of a desired area of any original image including a thick object is read. It is possible to provide an efficient and efficient image reading apparatus.

According to a second aspect of the present invention, the imaging means reads an image,
The image processing means selectively performs a plurality of types of processing, and the area display means displays the specific area over the original image. An image reading apparatus can be provided in which image data having different image processing effects can be obtained by accurate, simple, and efficient operations.

According to a third aspect of the present invention, the imaging means reads an image,
Since the transparent coordinate input means inputs the designated area of the operator, the area display means superimposes and displays the specific area on the original image, and the image processing means selectively performs a plurality of types of processing.
It is possible to provide an image reading apparatus in which image data having different original image processing effects in a specific region of an arbitrary original image including a thick object has an accurate and efficient input operation and reading operation of the specific region.

[Brief description of the drawings]

1 is an overall perspective view showing a first embodiment of the present invention, FIG. 2 is a longitudinal side view, FIG. 3 is a block diagram, FIG. 4 is a perspective view of a reading optical system and a writing optical system, FIG. 5 is a plan view of the digitizer unit and the LCD, FIG. 6 is a block diagram of the IP280, FIG. 7 is a basic timing diagram, FIG. 8 is a reading timing diagram, FIG. 9 is a recording timing diagram, and FIG. FIG. 11 is a block diagram of a spatial filter with a line buffer memory, FIG. 12 is a block diagram of a color correction / color conversion circuit, FIG. 13 is a block diagram of a scaling circuit, and FIG. 182 CCD photoelectric conversion units arranged one-dimensionally
A detailed view of part a, FIG. 15 is a detailed view of part 182c in which CCD photoelectric conversion elements are arranged two-dimensionally, FIG. 16 is a flowchart of the operation, FIG. FIG. 18 is a plan view showing a screen when there is image data in the memory, and FIG. 19 is a plan view showing a screen when more data than the displayable area in the memory is below the screen. FIG. 20 is a plan view showing a screen when more data than the displayable area in the memory is above the screen, FIG. 21 is a plan view showing a display screen of the scan request specification reception result, and FIG.
Fig. 22 is a top view of the LCD with the LCD aligned, 2nd
3 is a plan view showing a state in which the circular area is enlarged by touching the arrow 121b2, FIG. 24 is a plan view showing a display screen of the scan request specification reception result, FIG. FIG. 26 is a plan view showing the screen after reading, FIG. 27 (a), FIG. 27 (b), FIG. 27 (c), and FIG. FIG. 28 (a) is a plan view showing a screen before reading is started, FIG. 28 (b) is a plan view showing a screen after reading, and FIG. 29 (a) is a plan view before starting reading. FIG. 29 (b) is a plan view showing the screen after reading, FIG.
30 is a perspective view showing a second embodiment of the present invention, FIG. 31 is a longitudinal side view thereof, FIG. 32 is a circuit block diagram, FIG. 33 is a perspective view showing a third embodiment of the present invention, FIG. 34 is a longitudinal side view thereof, FIG. 35 is a perspective view showing a fourth embodiment of the present invention, and FIG.
The figure is a longitudinal side view. 10 …… Original picture, 100,300,500,700 …… Coordinate input means, 121,3
21,521,721 ... area display means, 121a, 121b, 121m ... areas input by coordinate input means, 182,382 ... image pickup means, 203X,
203Y, 213X, 213Y, 451 ... Moving amount detecting means, 205, 405, 605,
805: Frame, 222: Control means, 280, 480: Image processing means

Claims (3)

(57) [Claims] An image pickup means for reading an original image by decomposing the original image into pixels, and an image pickup means which can be placed at an arbitrary position on the original image at an arbitrary angle, and a reading target range for regulating the range of the original image to be read is provided. A frame that can be seen through, a moving amount detecting unit for detecting a moving amount of the imaging unit on the original image, that the imaging unit has moved, and the frame has reached an original image range that the frame initially surrounded. Control means for starting the original image reading operation when the movement amount detecting means detects the original image reading operation, and stopping the original image reading operation when detecting that the frame body has deviated from the original image range that was originally surrounded, An image reading device comprising: 2. An image pickup means for decomposing an original image into pixels for reading the original image data; an image processing means capable of selectively performing a plurality of types of processing on the original image data read by the image pickup means; A specific area that can be placed at an arbitrary angle in a position, has light transmittance such that at least a part of the original image can be seen through, and allows the image processing means to selectively perform different processing. And an area display means for displaying the superimposed image on the original image. 3. An image pickup means for decomposing an original image into pixels for reading the original image data; an image processing means capable of selectively performing a plurality of types of processing on the original image data read by the image pickup means; A coordinate input unit having a light transmissivity capable of inputting a coordinate value of a desired region of the original image, which can be placed at an arbitrary angle in a position, and located in a space where coordinates can be input to the coordinate input unit; Image reading, comprising: an area display unit having at least a part of the original image having a light-transmitting property capable of being seen through, and displaying an area input by the coordinate input unit so as to overlap the original image. apparatus.