JPS61295752A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To display an image which is thinned out at a proper thinning-out rate on a CRT at an optional position by adding a circuit which thins out and stores image information of a transmission original and adds a synchronizing signal to obtain a video signal. CONSTITUTION:A binary-coded image information signal (a) outputted from a readout part 1 is stored in the 1st memory 2 as it is and a thinning-out mode specifying circuit 5 fetches an original width detection signal (j) from the readout part 1 and an input information signal (k) containing the thinning-out rate and the specification of a display position to output a thinning-out mode specifying signal l. Then, a thinning-out signal generating circuit 4 outputs thinning-out signals (c) and (d) for determining the horizon tal and vertical directions of the display position and the image information signal (e) to be thinned out is outputted from a thinning-out circuit 3 to the 2nd memory circuit 7. Further, the 2nd memory circuit 7 outputs a video image information signal (f) in synchronization with vertical and horizontal synchronizing signals (g) and (h) for videos outputted from a video signal generating circuit 8 and a composite video signal (i) generated by a video signal generating circuit 8 is outputted to a video signal output interface circuit 9 together with the vertical and horizontal synchronizing signals.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a facsimile machine, and more particularly to a facsimile machine having a function of displaying image information read from a transmitted document on an externally connected C)IT display.

2. Description of the Related Art Conventionally, when operating a facsimile machine of this type using an external terminal device having a CRT such as a burner computer, the external terminal device was connected to the operation control section of the facsimile machine.

However, in such a connection, the CRT of the external terminal device
The only display that can be displayed on the display is text to facilitate interaction with the operator of the facsimile machine, and image information of the document read by the facsimile machine cannot be displayed.

Problems to be Solved by the Invention The purpose of the present invention is to solve the above-mentioned drawbacks, namely, when an external terminal device having a CRT controls the operation of a facsimile machine,
An object of the present invention is to provide a facsimile device which solves the problem that image information cannot be displayed on a CRT display.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a reading section for reading a transmitted document, and a first memory capable of storing one page's worth of read and binarized image information. a circuit, an operation control unit operated by keyboard operation, a decimation mode designation circuit that specifies a decimation mode based on information from the reading unit and the operation control unit, and a decimation mode designation circuit that specifies a decimation mode based on the information from the decimation mode designation circuit; a thinning signal generation circuit that generates a signal;
Transmission original 1 is the first image data stored in OT function.
a decimation circuit that decimates and outputs the image information output from the memory circuit based on a decimation signal from the decimation signal generation circuit; a second memory circuit that accumulates the output of this decimation circuit; A video signal generation circuit that generates a composite video signal by combining a horizontal synchronization signal and a vertical synchronization signal with an image signal from the circuit, and a video signal output interface circuit that outputs this output to an external CRT display, A configuration is adopted in which the operation control section performs interface control with an external terminal device.

Operation Since the present invention is configured as described above, a terminal device having a C-Tf is connected to the operation control section, a T-display is connected to the video signal output interface circuit, and the reading section reads the data from the transmitted original. In order to accumulate pages worth of image information in the first memory circuit and display this image information in a thinned-out manner according to the resolution of the CRT, thinning is performed using information from the terminal device via the operation control section and information from the reading section. Create a thinning mode that specifies the rate and display position, output this to a thinning signal generation circuit, output horizontal and vertical thinning signals from this thinning signal generating circuit, and use these to cause the thinning circuit to thin out the display area and The video signal generation circuit synthesizes the horizontal and vertical synchronization signals with the output of the second memory circuit to generate a composite video signal, and outputs the video signal through the video signal output interface circuit.
It can be displayed on the R,T display.

Example Next, embodiments of the present invention will be described with reference to the drawings.

Referring to FIG. 1, which shows a block diagram of a circuit section of a CRT display function in an embodiment of the present invention, when a document is read, the facsimile machine of the present invention converts the contents into a white and black binary image. A reading unit 1 that outputs information, a first memory circuit 2 that has a capacity to store and store one page of binarized image information from the reading unit 1, and an output from the first memory circuit 2. A signal generation circuit 4 thins out the image signal to be
a decimation circuit 3 that outputs a decimation signal based on a decimation signal output from the decimation signal generation circuit 4 that generates a decimation signal in accordance with the output of the decimation mode designation circuit 5;
and a decimation mode designation circuit 5 that specifies the decimation mode based on information from the operation control unit 6, and an operation that controls the built-in display unit and keyboard and controls the interface with an externally connected terminal device including a CRT display. a control unit 6; a second memory circuit 7 that stores image information thinned out to a resolution that can be displayed on a CRT display;
A video signal generation circuit 8 that generates a composite video signal by combining the image information from the second memory circuit 7 with a vertical synchronization signal and a horizontal synchronization signal, and an externally connected CRT display, are used for CB and T displays. and a video signal output interface circuit 9 that outputs a composite video signal.

FIG. 2 shows an entire embodiment of a facsimile machine in which the circuit section shown in FIG. The operation control section 6
A conventional keyboard 14 and display section 15 are connected to the .

FIG. 3 is a time chart showing the operation of the embodiment shown in FIG. 1, and FIG. 1 is an explanatory diagram showing the relationship between one page's worth of image information and a thinned-out video signal.

Next, the operation will be explained using FIG. 1, FIG. 3, and FIG.

The binarized image information signal a output from the reading section 1 is stored in the first memory circuit 2 as it is, and becomes the output signal of the first memory circuit 2 as it is. Therefore, their waveforms are exactly the same. The thinning mode designation circuit 5 takes in the document width detection signal J from the reading unit 1 and the input information signal including the designation of the thinning rate and display position from the operation control unit 6, and outputs the thinning mode designation signal l. do. Next, based on the thinning mode designation signal l, the thinning signal generating circuit 4 outputs a thinning signal C that determines the horizontal direction of the display position and a thinning signal d that determines the vertical direction of the display position, and these thinning signals Image information signals el and c4 thinned out in synchronization with signals c and d are transferred from the thinning circuit 3 to the second memory circuit 7.
Output to.

That is, the signals al and bl in FIG. 3 each represent one horizontal line as a block, and the thinning signal C causes
Among them, the horizontal display position el is thinned out. This is the first
This is the range of 01 of the image information of page 1 in the figure. Also, a2.
b2 indicates a signal for one image in one block, and the vertical display portion ffe2 of the block is thinned out by the thinning signal d. This is also e of the image information on page 1 in Figure 1.
The range is 2. Then, the signal f at the position e1×e2 is stored in the second memory circuit 7.

Furthermore, after the storage of the thinned out image information in the second memory circuit 7 is completed, the signal is synchronized with the video vertical synchronization signal g and the video horizontal synchronization signal g output from the video signal generation circuit 8. , a video image information signal f is outputted from the second memory circuit 7, generated as a composite video signal i together with vertical and horizontal synchronizing signals by the video signal generation circuit 8, and outputted to the video signal output interface circuit 9.

In this way, one page of facsimile image information is CR
It becomes possible to thin out the data to an amount corresponding to the resolution of T and display it on a CRT display.

Effects of the Invention As explained above, according to the present invention, a terminal having a CRT display can be produced by adding a circuit that thins out image information of a transmitted document, stores it, and adds a synchronization signal to generate a video signal. This has the advantage that an image thinned out at an arbitrary position and at an appropriate thinning rate can be displayed on the CRT of the device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a circuit section of a CRT display function according to an embodiment of the present invention, FIG. 2 is an overall block diagram of an embodiment of a facsimile machine according to the present invention, and FIG. 3 is an explanation of the operation of the circuit shown in FIG. 1. FIG. 1 is a diagram showing the relationship between image information and thinned-out video signals. 1... Reading section, 2, 7... Memory circuit, 3... Thinning circuit, 4... Thinning signal generation circuit, 5......・Thinning mode specification circuit, 6
......Operation control unit, 8...Video signal generation circuit, 9...Video signal output interface circuit, IO...CRT connection terminal, 11-...・・・
・C-T display, 12...terminal device connection terminal, 13...terminal device, 14--keyboard, 15--display section, 16...・・・・・・
Facsimile machine body, 20...-CRT display function circuit, a, b... image information, C...
...Horizontal thinning signal, d... Vertical thinning signal,
e: Thinned image signal, f: Video image signal, g, h: Vertical and horizontal synchronization signals, i: Composite video Signal, j... Original width detection signal, k... Thinning rate and display position designation signal, l... Thinning figure 1 ← e16

Claims (1)

[Claims] It has a reading unit that reads the transmitted original, a first memory circuit that stores the output of the reading unit, a keyboard, a display unit that displays selected functions and operation designations, and an operation control unit that is operated by the keyboard operation. The facsimile machine includes a decimation mode designation circuit that designates a decimation mode based on information from the reading section and the operation control section, and a decimation signal generation circuit that generates a decimation signal in accordance with the output from the decimation mode designation circuit. , a decimation circuit that decimates and outputs image information output from the first memory circuit capable of storing image information for one page of a transmission original based on a decimation signal from the decimation signal generation circuit; and this decimation circuit. a second memory circuit that accumulates the output of the second memory circuit; a video signal generation circuit that generates a composite video signal by combining the image signal from the second memory circuit with a horizontal synchronization signal and a vertical synchronization signal; A facsimile machine comprising: a video signal output interface circuit for outputting an output to an externally connected CRT display; and the operation control section is configured to control an interface with an external terminal device having a CRT display. .