JPS6031355A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To change optionally a position of an original to be displayed in case displaying a transmission original on a CRT by thinning out a picture signal outputted from the 1st memory circuit and storing the thinned out picture signal to a degree of resolution to be displayed on the CRT display by the 2nd memory circuit. CONSTITUTION:A binary-coded picture information signal (a) outputted from a reading section 1 is inputted to the 1st memory circuit 2 and stored. The designation of displayed position and rate of thinning out are fetched from the input information signal to a thinning out signal generating circuit 4 from a thinning out mode designation circuit 3. Then the thinning out signal generating circuit 4 outputs a thinning out signal (c) deciding the vertical direction of the display position and a thinning out signal (e) deciding the horizontal direction of the displayed position are outputted from the thinning out signal generating circuit 4 and the thinned picture information signal (d) is outputted from the thinning out circuit 5 to the 2nd memory circuit 6 in synchronizing with the thinning out signals c,e. When the storage of thinned out picture information is finished to the 2nd memory circuit 6, the signal is synthesized into a composite video signal (i) by the operation between a video signal generating circuit 7 and the memory circuit 6 and outputted on the CRT display 8.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a facsimile device, and more particularly to a facsimile device that can display read image information on a CRT display. When visualizing information, a high-resolution CRT display was generally used.

However, such devices have the disadvantage that they always require a large-diameter, high-resolution CRT display in order to display the read image information all at once.

In view of the above points, the present invention has been made to solve such problems and eliminate such drawbacks.The purpose of the present invention is to display a transmitted original on a CRT using a simple circuit configuration. The desired position can be changed arbitrarily,
The object of the present invention is to provide a facsimile device to which a popular CRT display with a small diameter and low resolution can be connected.

In order to achieve such an object, the present invention includes a first memory circuit that stores all the image information for one page of the transmission document, a thinning mode designation circuit that designates the thinning mode, and an output of the thinning mode designation circuit. a thinning signal generating circuit that generates a thinning signal based on the thinning signal, a thinning circuit that thins out the image information output from the first memory circuit based on the output of the thinning signal generating circuit, and a thinning circuit that thins out the image information output from the first memory circuit based on the output of the thinning signal generating circuit; a second memory circuit for accumulating, a video signal generation circuit for creating a composite video signal by combining image information from the second memory circuit with vertical synchronization and horizontal synchronization, and displaying the output of this video signal generation circuit. The device is equipped with a CRT display for

Embodiments of the present invention will be described in detail below based on the drawings.

FIG. 1 is a block diagram showing an embodiment of a facsimile apparatus according to the present invention, in which a portion related to a transmitting section is extracted and shown.

In the figure, 1 is a reading unit that has the function of outputting the contents of the original as binary image information of black and white when the original is input, and 2 is the binary transmitted original from this reading unit 1. The first memory circuit stores all the image information for one page, and 3 is a thinning mode designation circuit that specifies the thinning mode.
The configuration is such that whether to display on the RT display is set by specifying from a DIP switch or a keyboard (not shown). 4 is this thinning mode designation circuit 3
This thinning signal generating circuit 4 is composed of a ROM and a counter in which a plurality of thinning ratios and display positions are written, and the thinning ratio is determined by the thinning mode specifying circuit 3. It is also configured to output thinning signals in the horizontal and vertical directions based on the designation of the display position of the document.

5 is a thinning circuit that thins out the image signal output from the first memory circuit 2 based on the thinning signal output from the thinning signal generating circuit 4; 6 is a second memory that accumulates the output of this thinning circuit 5; This second memory circuit 6 is configured to store image information thinned out to a resolution that can be displayed on a CRT display. 7 is a video signal generation circuit that creates a composite video signal by combining the image information from the second memory circuit 6 with vertical synchronization and horizontal synchronization. It is configured to extract the image signals from the two memory circuits 6 and output a composite video signal that is synthesized. Reference numeral 8 denotes a popular CRT display for displaying the output of the video signal generating circuit 7.

Next, the operation of the embodiment shown in FIG. 1 will be explained in FIG. 2, which is a time chart of each image information signal, and FIG. Explain with reference to. This figure 3 (a
) to (g), (a) to (d) show examples with a thinning rate of about 1/4, (e) to (f) show examples with a thinning rate of about 1/8, and ( g) shows an example with a thinning rate of about 1/16. In Figures 3(,) to (g), the rectangle on the left represents the transmitted original, the diagonal line represents the display section on the CRT, the rectangle on the right represents the CRT, and the diagonal line represents the image of the transmitted original. Show that something is true. Furthermore, L1 to t4 are the number of scanning lines on the original (tl<L2<L3<
t4), L, , -L is the number of scanning lines on the CRT (Ll
=L2 <r'a ==l, 4), and in the embodiment shown in FIG. 1, the image information is processed as valid data when each thinning signal is at a low level (%(,〃) In addition, the thinning mode specifying circuit 3 is set so that the position shown in the shaded area in FIG. shall be.

First, a binarized image information signal a having a waveform as shown in FIG. 2(a) output from the reading section 1 is input to the first memory circuit 2 and stored therein. At this time, the designation of the display position and the thinning rate are taken into the thinning signal generating circuit 4 from the thinning mode specifying circuit 3 by an input information signal. Next, from this thinning signal generation circuit 4, a thinning signal C as shown in FIG. 2(C) that determines the vertical direction of the display position, and a thinning signal C as shown in FIG. 2(e) that determines the horizontal direction of the display position. The thinning signal e as shown in FIG. Output to.

Next, when the storage of the thinned out image information in the second memory circuit 6 is completed, the video signal generation circuit 7 is transferred to the second memory circuit 6 as shown in FIG.
The vertical synchronizing signal g for video as shown in g) and the vertical synchronizing signal g shown in Fig. 2 (h)
A video horizontal synchronizing signal as shown in FIG. 1 is output to the second memory circuit 6. Then, the video image information signal f as shown in FIG. 2(f) from the second memory circuit 6 is sent to the video signal generating circuit 7 together with vertical and horizontal synchronizing signals as shown in FIG.
i) vr--It is synthesized into a composite video signal i having a waveform as shown and is output to the CRT display 8.

The present invention has been described above by taking as an example the case where the thinning mode specifying circuit 3 is set to display the position shown in the shaded area in FIG. is not limited to this, and by changing the settings in the thinning mode designation circuit 3, the third
The display examples shown in FIGS. (b) to (g) can be easily realized.

In this way, when displaying a transmitted document on a CRT, the display position of the document can be arbitrarily changed using a simple external circuit configuration. CRT display can be connected.

As explained above, according to the present invention, a transmitted document can be CR
When displaying the document on the screen, the display position of the document can be changed arbitrarily, and a popular CRT can be connected, so the practical effect is extremely large. Also,
In that it is possible to connect a popular CRT with a small diameter and not high resolution without using a large diameter and high resolution CRT, and the price can be reduced by simplifying the configuration. Extremely effective.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of a facsimile apparatus according to the present invention, and FIGS. 2 and 3 are time charts for explaining the operation of FIG. 1 and the display position of the document when displayed on a CRT display. This is an explanatory diagram showing an example of correspondence on a CRT. 2.6...Fist/memory circuit, 3...Thinning mode specifying circuit, 4...Thinning signal generation circuit, 5...Thinning circuit, 7...Video signal generation circuit, 8...・-・C
RT display. , O^ ri °0 --i Togo-1

Claims (1)

[Claims] A first memory circuit that stores all the image information for one page of the transmitted original; a thinning mode designation circuit that designates a thinning mode; and a thinning signal generation circuit that generates a thinning signal based on the output of the thinning mode designation circuit. , a decimation circuit that decimates and outputs the image information output from the first memory circuit based on the output of the decimation signal generation circuit; a second memory circuit that accumulates the output of the decimation circuit; A video signal generation circuit that creates a composite video signal by combining image information from the memory circuit with vertical synchronization and horizontal synchronization, and a CRT for displaying the output of this video signal generation circuit.
A facsimile device comprising a display.