JPH03246775A - Image reader and document processor - Google Patents

Abstract

PURPOSE:To output image data with different magnification by one time of reading operation by magnifying/reducing a digital image in which an image read with a reading means is A/D-converted with at least two or more different kinds of magnification sequentially, and outputting the images simultaneously. CONSTITUTION:The reading means 11 reads the image of a body or original targeted to read, etc., and an A/D conversion means 12 converts a serial analog signal received from the reading means 11 into a serial digital signal, and delivers it to magnification and reduction means 13, 14. The magnification and reduction means 13, 14 convert inputted image data into designated magnification, respectively, and deliver them to output means 15, 16, and the output means 15, 16 output digital image signals as taking synchronism with external equipment. In such a way, it is possible to output the image data with different magnification by one time of reading.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an image reading device and a document processing device used in word processor workstations and the like.

BACKGROUND OF THE INVENTION FIG. 3 is a schematic block diagram of a digital image output section of a conventional image reading device. As an analog signal, analog-to-digital conversion means (hereinafter referred to as A/D conversion means) 32
Output data sequentially.

The AD conversion means 32 converts the serial analog signal received from the reading means 31 into a serial digital signal and passes the data to the enlargement/reduction means 33.

The enlarging/reducing means 33 converts the input image data to a predetermined magnification and passes the data to the output means 34. The output means 34 outputs a digital image signal while synchronizing with an external device (not shown). do.

In this way, even the conventional image reading device described above can output enlarged/reduced image data.

Problems to be Solved by the Invention However, the conventional image reading device described above can only output image data with one type of magnification when reading at -degrees, and the resolution of the display device and the resolution of the printing device may be different. In conventional systems, it is necessary to perform processing such as re-enlarging or reducing the image that has been read each time, and this process takes time.

The invention of claim 1 is intended to solve such conventional problems, and aims to provide an excellent image reading device that can output image data of different magnifications by reading -degrees. .

Further, the invention of claim 2 provides an excellent document processing system that can simultaneously generate data matching the respective resolutions of display and print with a single reading operation from the image reading device, and display and print the read image at high speed. The purpose is to provide equipment.

Means for Solving the Problems In order to achieve the above object, the invention of claim 1 provides means for sequentially enlarging and reducing a digital image at at least two or more different magnifications; The system is configured to output each of the reduced digital images individually and at the same time.

In addition, in order to achieve the above object, the invention of claim 2 is configured to provide means for reading from the image reading device individually and simultaneously at a magnification matching the respective resolutions for displaying, printing, etc., and displaying and printing. It is something.

Therefore, according to the invention of claim 1, even in a system where the resolution of the display device and the resolution of the printing device are different, it is possible to read the -degrees at a resolution that suits each of them. This eliminates the need for processing such as re-enlarging/reducing the image, which has the effect of speeding up the processing.

Further, according to the invention of claim 2, even in a system where the resolution of the display device and the printing device are different, data matching the resolution of each display and print can be obtained by one reading operation from the image reading device. It has the effect of being able to be generated simultaneously and processed at high speed.

Embodiment FIG. 1 is a functional block diagram of an embodiment of the present invention. In FIG. 1, 1) is a reading means that scans and reads an image (not shown) and converts it into a serial analog signal, and 12 sequentially converts the serial analog signal output from this reading means 1) into a digital signal. This is AD conversion means.

Further, 13 is an enlargement/reduction means A which sequentially enlarges and reduces the AD-converted digital signal at a predetermined magnification in this AD conversion means 12 and outputs a digital image. This is an enlargement/reduction means B that outputs a digital image by sequentially enlarging/reducing it at a different magnification.

Reference numeral 15 denotes an output means A that outputs a digital image that has been sequentially enlarged or reduced by the enlarger/reducer means A13, and 16 is an output means B that outputs a digital image that has been sequentially enlarged or reduced by the enlarger/reducer means B14.

Next, the operation of the above embodiment will be explained. Reading means 1)
scans an object, document, etc. to be read sequentially, reads the image, and converts it into an AD converter 1 as a serial analog.
2, output the data sequentially.

The AD conversion means 12 converts the serial analog signal received from the reading means 1) into a serial digital signal, and passes the data to the enlargement/reduction means 13 and the enlargement/reduction means 14.

The enlarging/reducing means 13 and the enlarging/reducing means 14 each convert the input image data to a prespecified magnification, and the enlarging/reducing means 13 passes the data to the output means 15, and the enlarging/reducing means 14 passes the data to the output means 16.

The output means 15 and the output means 16 output digital image signals in synchronization with external equipment.

Therefore, according to this embodiment, image data of two independent magnifications can be output simultaneously.

In the embodiment shown in FIG. 1, the enlarging/reducing means 13 and the enlarging/reducing means 14 are provided, and the enlargement/reduction is performed at two different magnifications. It goes without saying that the enlargement/reduction means and the output means can be added as appropriate depending on the type of enlargement/reduction of different magnifications.

FIG. 2 is a functional block diagram in another embodiment of the present invention. In FIG. 2, 21 is the image reading device in the embodiment shown in FIG. 1, and 22 is a transfer means connected to the image reading device 21 and outputting image data with different magnifications output from the image reading device 21. It is.

Further, 23 is a display data storage means that receives and stores the image data from the transfer means 22, and outputs the stored data to the display means 25 for display. It is a print data storage means that receives and stores image data, and outputs the stored data to the printing means 26 for printing.

Further, 27 is a display means 25 for the image reading device 21;
This image reading device control means sets the magnification corresponding to the resolution of the printing means 26 and controls the reading operation.

Next, the operation of the embodiment shown in FIG. 2 will be explained. The image reading device 21 is the image reading device in the embodiment shown in FIG. 1, and outputs image data with different magnifications, but in the embodiment shown in FIG. 2, it outputs image data with two different magnifications. Let me explain the case.

The image reading device control means 27 sets a magnification for the image reading device 21 corresponding to the resolution of the display means 25 and the printing means 26, and starts reading.

Of the two types of image data with different magnifications output from the image reading device 21, the transfer means 22 stores the image data of one magnification in the display data storage means 23 and the image data of the other magnification in the print data storage means. Transfer to 26.

The display data storage means 23 stores the image data transferred from the transfer means 22 and outputs it to the display means 25. Similarly, the print data storage means 24 stores the image data transferred from the transfer means 22 and outputs it to the printing means 26.

The display means 25 displays the data stored in the display data storage means 23, and the printing means 26 displays the data stored in the display data storage means 24.
Print the data stored in the .

Therefore, according to the embodiment shown in FIG. 2, data matching the display and print resolutions can be simultaneously generated by bisotomamph expansion with a single reading operation, and the read image can be displayed and printed at high speed. be able to.

Effects of the Invention As is clear from the above-mentioned embodiments, the invention of claim 1 is capable of sequentially enlarging/reducing a digital image obtained by AD converting an image read by a reading means by an enlarging/reducing means at two or more different magnifications. It is designed to output image data at the same time, and it is possible to output image data of different magnification by reading the -degrees. Even in systems where the resolution of the display device and the resolution of the printing device are different, it is possible to read the -degrees. The image can be read at a resolution that suits each user, eliminating the need for processing such as re-enlarging or reducing the image that has been read each time, thereby speeding up the processing.

Further, as is clear from the above embodiment, the invention of claim 2 sets a magnification corresponding to the resolution of the display means and the printing means in the image reading device, reads images individually and simultaneously at that magnification, and displays and prints the images. This is done at the same time.
Data matching the resolution for display and printing can be generated simultaneously with a single reading operation of the image reading device, and the read image can be displayed and printed at high speed.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram of an image reading device in an embodiment of the present invention, FIG. 2 is a functional block diagram of a document processing device in another embodiment of the invention, and FIG. 3 is a functional block diagram of an image reading device in a conventional example. It is a functional block diagram. 1)...Storage means, 12...AD conversion means, 13...Enlargement/reduction means A, 14...
・・Enlargement/reduction means B, 15・Old ・・Output means A, 16・
... Output means B, 21 ... Image reading device, 22 ... Transfer means, 23 ... Song/display data storage means, 24 ... Print data storage means, 25
... Display means, 26 ... Printing means, 2
7... Image reading device control means.

Claims (2)

[Claims] (1) A reading means that scans and reads an image and converts it into a serial analog signal, an analog-to-digital conversion means that sequentially converts the serial analog signal into a digital signal, and at least a digital image converted into the digital signal. An image reading device comprising an enlargement/reduction means for sequentially enlarging/reducing at two or more different magnifications, and an output means for individually and simultaneously outputting the digital images sequentially enlarged/reduced at the two or more different magnifications. (2) The image reading device according to claim 1, means for setting a magnification in the image reading device according to the resolution of each of the display, printing, etc., and a means for setting the magnification of the image reading device individually according to the resolution of each of the display, printing, etc. A document processing device comprising means for simultaneously reading an image from the image reading device and developing a bitmap for display and printing.