JPH0775386B2 - Image bank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an image scanner that sequentially captures image information by scanning while facing the document surface, and image information captured by this image scanner. And an image bank having a display for displaying.

[Conventional technology]

In the conventional image bank, the image scanner is provided with only one line sensor having a constant width, and by scanning the document with this one line sensor, the image described on the document is obtained. It is designed to read information in sequence. Further, the read image information is displayed on a display arranged in the main body of the image bank and is also written on a predetermined recording medium. By the way, the width of the image information varies depending on each original, but in the conventional image scanner, regardless of the width of the image information, the line sensor having a constant width and the entire area of the light emitting unit for illuminating the original, That is, the entire area corresponding to the maximum reading width is operated to capture the image information.

[Problems to be solved by the invention]

However, as described above, in the configuration in which the entire area of the line sensor and the light emitting unit is uniformly operated to capture the image information, when the width of the image information is smaller than the width of the line sensor, there is a wasteful area that is not involved in the capture. growing. Therefore, as the frequency of capturing image information in such a state increases, an additional power consumption for driving the line sensor and the light emitting unit in a portion not involved in capturing increases. Has occurred.

Therefore, it is conceivable to provide two or more line sensor sections having different widths from each other. However, an image scanner provided with two or more line sensor sections is not provided at this time. The display technology associated with is not provided. For example, in the case of a personal word processor, characters with a fixed number of dots are scrolled in only one direction, and if this is used as it is in combination with the configuration in which two wide and narrow capture widths are provided, When the capture width is small, there are many areas in the display that are not used for display, which reduces display efficiency.

[Means for solving problems]

In order to solve the above-mentioned problems, an image scanner according to the present invention comprises an image scanner which is scanned so as to face a document surface, and a rectangular display which displays image information captured by this image scanner. In the image bank, the image scanner is irradiated with two long and short first and second slit portions having different lengths corresponding to the width of capturing image information, and a document surface located facing each slit portion. In addition to the first and second light emitting parts, and the two wide and narrow first and second line sensor parts that receive the reflected light from the document surface guided through each slit part and convert it into electric signals respectively, When the image information is selected to be captured through the first slit section, the first light emitting section and the first line sensor section are activated, and the first line sensor section is activated. Image information captured along the length direction of the lit portion is displayed side by side in the long side direction of the display and scrolled in the short side direction of the display, while selecting to capture image information through the short second slit portion. Then, the second light emitting section and the second line sensor section are operated, and the image information taken in along the length direction of the second slit section is displayed side by side in the short side direction of the display. It is characterized in that it is provided with an intake control means for controlling so as to scroll in the long side direction.

[Work]

According to the above configuration, which of the first and second slit portions is to be used to capture the image information of the document surface is selected according to the width of the image information to be captured, and then the image scanner is scanned on the document surface. By facing and scanning, image information is taken in in a state in which only the light emitting section and the line sensor section corresponding to the selected slit section are activated.

In this case, since it is possible to read in a state in which the area not involved in the capture of image information is further reduced, extra power consumption is suppressed, and as a result, it is possible to reduce the overall power consumption.

Further, in the above, the display on the rectangular display can be switched according to the selection of the first and second slit portions. For example, when the width of the image information of the original is small and the second slit portion is selected accordingly, the image information along the length direction of the second slit portion is displayed side by side in the short side direction of the display, and The display contents are sequentially scrolled in the long side direction of the display. This reduces the area of the display that is not used for display, so
The display efficiency is improved.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

As shown in FIG. 1, the image bank 35 according to the present invention is provided with, for example, a handy type image scanner (hereinafter, simply referred to as an image scanner) 1 detachably. On the upper surface of the main body of the image bank 35, a rectangular display 2 for displaying image information captured by the image scanner 1 is provided. An operation panel section 33 is arranged near the display 2. Further, on the side surface of the main body of the image bank 35, there is provided a recording medium 27 (fourth recording medium) for temporarily storing the captured image information.
The insertion port 3 into which (shown in the drawing) is inserted is formed. An operation button 4 for taking out the recording medium 27 inserted into the insertion opening 3 is provided near the insertion opening 3.

The image scanner 1 has a rectangular parallelepiped shape, and one side surface that is flush with the upper surface of the image bank 35 has
A start switch 34 is provided. Further, as shown in FIG. 2, the other side surface of the image scanner is
There is provided a first slit portion 5 having a length dimension which is a width E for capturing image information. As shown in FIG. 3, the first slit portion 5 has X in the line sensor 6.
The width sensor section (first line sensor section) 6a is configured to guide the reflected light from the document surface. Further, on the one side surface portion on which the first slit portion 5 is formed, a determination switch 7 for determining whether or not the X width sensor portion 6a is selected by the first slit portion 5, scanning (A in the image scanner 1) A roller 8 that rotates by (movement in the -B direction) and a first light emitting unit (not shown) for illuminating the document surface are provided. The roller 8 is connected to a rotary encoder 15 via a wire 14. The rotary encoder 15 rotates in association with the rotation of the roller 8 and generates a pulse corresponding to this rotation.

In the one side surface portion adjacent to the one side surface portion where the first slit portion 5 is formed, the image information fetching width F (F <E)
The 2nd slit part 9 formed in the length dimension which becomes is provided. The reflected light from the document surface that has passed through the second slit portion 9 is guided to the Y width sensor portion (second line sensor portion) 6b of the line sensor 6 via the fiber array 10. The line sensor 6 is formed by integrating the X-width sensor portion 6a and the Y-width sensor portion 6b, and the width X of the X-width sensor portion 6a is the first slit portion 5 described above.
, And the width Y of the Y width sensor portion 6b corresponds to the width F of the second slit portion 9. The line sensor 6 is composed of, for example, a CCD sensor, and is configured to convert the captured image information into an electric signal (hereinafter referred to as image data).

The second side is formed on the one side surface portion where the second slit portion 9 is formed.
A determination switch 11 for determining whether or not the Y width sensor unit 6b is selected by the slit unit 9, a roller 12 rotated by scanning (movement in the CD direction in the image scanner 1), and a document surface for illuminating the document surface. A second light emitting unit (LED) 13 is provided. Like the roller 8, the roller 12 is connected to a rotary encoder 15 via a wire 16, and the rotary encoder 15
The roller 15 rotates in conjunction with the rotation of the roller 12 and generates a pulse corresponding to this rotation.

The image bank 35 is controlled by the CPU1 as shown in FIG.
It is designed to be performed under program control of 7. CPU
A ROM 18 in which a control program is written in advance is connected to 17 via a bus 19. The CPU 17 uses the selected line sensor unit (X width sensor unit 6a or Y width sensor unit
It also has a capture control means for capturing image information from 6b) and displaying it on the display 2.

The key input device 20 is the operation panel section of the image bank 35.
It is designed to work with the various keys that make up the 33. SW
Is the determination switch 7/11. The C-GROM 21 is used when decoding a character code into a character pattern. The LED driver 22 is for driving the light emitting unit (LED) 13. The D-RAM 23 is for temporarily storing the image data displayed on the display 2. The S-RAM 24 is a memory used as a working area for various flags and registers,
A backup power supply 24a is provided to always store various modes. The GDC 25 is a graphic display controller, and is configured to perform control such as graphic movement on image data for display configured in the D-RAM 23. The writing / reading device 26 is a device that writes the image data in the recording medium 27 or reads data from the recording medium 27. The DMAC 28 stores the image data from the line sensor (CCD sensor) 6 in the D-RAM.
This is a direct memory access controller for preventing the transfer speed loss by the CPU 17 when transferring to 23 or the recording medium 27.

The line sensor 6 is connected to the bus 19 via a buffer 29. Further, the display 2 is
It is composed of a dot matrix type liquid crystal display device 30, and is driven by an X driver 31 and a Y driver 32 to display image data from the D-RAM 23.

In the above structure, as shown in FIG. 5, in the image bank 35, various parameters are first initialized (S1), and then the image information capturing ready state is set (S2). In this ready state, the start switch
When 34 is turned on, it is determined which of the determination switches 7 and 11 is turned on (S
3).

Here, for example, when capturing wide image information,
The first slit portion 5 is selected, and this is performed by bringing the surface of the image scanner 1 on which the first slit portion 5 is formed close to or opposite to the original surface, as shown in FIG. 6 (a). . In this way, the first slit portion 5
The determination switch 7 is pressed and turned on when the formation surface of the sheet is brought close to or opposite to the original surface, and accordingly, it is selected that the image information acquisition through the first slit portion 5 is selected. It is judged by. Further, when the image scanner 1 scans the original in the direction of the arrow shown in FIG. 6A, the roller 8 rotates, and the rotary encoder 15 rotates in conjunction with this rotation.
The scanning state in the slit part 5 can be detected.

Then, as described above, when the determination switch 7 is turned on and the X width sensor section 6a is selected, the scroll mode of the display 2 is set to the short side scroll mode (S4). When the short side scroll mode is set, the operation proceeds to the image data transmission operation (S
Five). In this image data transmission, the image information taken in by the X width sensor unit 6a is converted into image data by the X width sensor unit 6a, and further processed by the GDC 25.
Further, the image data transmission is performed at a good timing based on the pulse output from the rotary encoder 15. And on the rectangular display 2,
As shown in FIG. 6 (b), the image information is scrolled in the direction of its short side (S6). At the same time, the writing / reading device 26 writes to the recording medium 27.

On the other hand, when capturing narrow-width image information, the second slit portion 9 is selected. At this time, as shown in FIG. 7A, the second slit portion 9 is placed close to the document surface. Face each other. Thereby, the reflected light from the document surface is guided from the second slit portion 9 to the Y width sensor portion 6b via the fiber array 10. The determination as to whether the determination switch 11 is turned on, the scanning state of the Y width sensor portion 6b in the second slit portion 9 and the like are performed in the same manner as in the X width sensor portion 6a described above.

When the determination switch 11 is pressed to select the Y width sensor section 6b, the scroll mode of the display 2 is set to the long side direction scroll mode (S7). Then, when the long side scroll mode is set, the operation proceeds to the image data transmission operation (S5). In this image data transmission, the image information taken in by the Y width sensor unit 6b is converted into image data by the Y width sensor unit 6b and further processed by the GDC 25. Then, on the rectangular display 2, as shown in FIG. 7B, the image information is scrolled in the long side direction (S6). At the same time, the writing / reading device 26
At, writing to the recording medium 27 is performed.

As described above, in the image bank 35 according to the present invention, the line sensor unit (either the X width sensor unit 6a or the Y width sensor unit 6b) having the capture width closest to the width of the document to be captured is provided. You can choose. This allows
The difference between the width of the image information and the width of the line sensor can be reduced to reduce waste. Furthermore, the narrow Y-width sensor section
Since the image information captured by 6b is scrolled in the long side direction of the display 2, the image information captured by the wide X-width sensor section 6a is scrolled in the short side direction of the display 2. , Very efficient scrolling can be performed.

〔The invention's effect〕

As described above, the image bank according to the present invention includes, in the image scanner, two first and second slit portions having different lengths corresponding to the width of capturing image information and having different lengths.
First and second light emitting portions that respectively illuminate the document surface located facing each slit portion, and two wide and narrow second and narrow light-receiving portions that receive the reflected light from the document surface that is guided through each slit portion and convert each to an electric signal. The first light emitting unit and the first line sensor unit are activated when the first and second line sensor units are selected and the image information is selected to be captured through the long first slit unit. Image information taken in along the length direction of the slit part is displayed side by side in the long side direction of the rectangular display and scrolled in the short side direction of the display, while image information is taken in through the short second slit part. When selected, the second light emitting unit and the second line sensor unit are activated,
In addition, the image information taken in along the lengthwise direction of the second slit portion is arranged side by side in the short side direction of the display, and at the same time, it is provided with a fetching control means for controlling the scrolling in the long side direction of the display. is there.

As a result, even if the width of the image information of the document is small, the extra power consumption corresponding to the area not involved in the capture is suppressed, and as a result, it is possible to reduce the overall power consumption, and further, Since there is less area in the display that is not used for display, the display efficiency is improved.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention. FIG. 1 is a perspective view showing an appearance of an image bank, FIG. 2 is a perspective view showing a slit portion in an image scanner, and FIG. FIG. 4 is a schematic block diagram showing the internal structure of the image scanner, FIG. 4 is a block diagram showing the control system of the image bank, FIG. 5 is a flowchart showing a subroutine of operation in the image bank, and FIG. 6 (a) is an image scanner. FIG. 7 is an explanatory view showing a state in which the original is being scanned, FIG. 7B is an explanatory view showing the display state of the display in the scanning shown in FIG. 7A, and FIG. Explanatory drawing showing the state of scanning above, FIG.
FIG. 3 is an explanatory diagram showing a display state of a display in the scanning of FIG. 1 is an image scanner, 2 is a display, 5 is a first slit portion, 6 is a line sensor, 6a is an X width sensor portion (first
Line sensor section), 6b is a Y width sensor section (second line sensor section), 7 and 11 are determination switches, 9 is a second slit section,
13 is the second light emitting unit (LED), 15 is a rotary encoder, 1
7 is a CPU (acquisition control means), 25 is a GDC, and 35 is an image bank.

Claims (1)

[Claims] 1. An image bank comprising an image scanner which is scanned so as to face a document surface, and a rectangular display which displays image information captured by the image scanner. Two long and short first and second slit portions having different lengths corresponding to the take-in width, first and second light emitting portions for irradiating the document surfaces respectively facing the respective slit portions, and the respective slits It is equipped with two wide and narrow first and second line sensor sections that receive the reflected light from the document surface guided through the section and convert it into electric signal respectively, and select to capture image information through the long first slit section. When the first slit portion is activated, the first light emitting portion and the first line sensor portion are activated, and the image information captured along the length direction of the first slit portion. Are displayed side by side in the long side direction of the display and scrolled in the short side direction of the display, and when the image information is selected to be taken in through the short second slit portion, the second light emitting unit and the second line sensor are selected. Capture control for activating the display unit and displaying image information captured along the length direction of the second slit portion side by side in the short side direction of the display and scrolling in the long side direction of the display. An image bank characterized by having means.