JPH0438073A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent printing paper from being uselessly wasted by unnecessary information by selectively leading a non-compressed facsimile(FAX) signal and a compressed FAX signal to a memory having storage capacity for one page and displaying data stored in the memory on a display part. CONSTITUTION:When a normal output mode is selected, a FAX signal from a receiving part 2 is inputted to a memory 6 through the 1st change-over switch SW1 without passing a signal compression part 4 and the non-compressed FAX signal for one page is stored in the memory 6 as data. When a contraction output mode is selected, the FAX signal from the receiving part 2 is compressed by the signal compressing part 4 and the compressed FAX signal is inputted to the memory 6 through the switch SW1. The memory 6 can store compressed FAX signals corresponding to nine pages. When a printer 7 is selected as a display part, data are printed out on A4-size printing paper.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine, and relates to a technology for displaying received data in a reduced size.

[Summary of the Invention] The present invention selectively guides an uncompressed facsimile signal and a compressed facsimile signal obtained by compressing the facsimile signal to a memory having a storage capacity of one page, and displays the data in this memory on a display section. By loading the uncompressed facsimile signal into memory and displaying it, one page of uncompressed data will be displayed in normal size, and by loading the compressed facsimile signal into memory and displaying it. When displayed, it is reduced and multiple pages of data are displayed.

[Prior Art and Problems to be Solved by the Invention] In the near future, facsimile broadcasting will begin in which a facsimile signal is frequency-multiplexed and transmitted on a television broadcast audio signal. This facsimile machine for facsimile broadcasting and conventional facsimile machines for telephone lines are set to print out one page of data on one sheet of paper (for example, A4 size). However, since facsimile machines for telephone lines are designed to automatically receive all transmitted signals, all unnecessary data is also printed out, resulting in wasted paper. Furthermore, depending on the type of information, it may be sufficient to recognize only the outline.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a facsimile device that can reduce and display multiple pages of data.

[Means for Solving the Problems] To achieve the above problems, a facsimile apparatus of the present invention includes a receiving section that receives a facsimile signal, a decoder that demodulates the facsimile signal received by the receiving section, and a decoder that demodulates the facsimile signal received by the receiving section. a signal compression unit for compressing the uncompressed facsimile signal; and a memory having a capacity for selectively guiding the facsimile signal output from the decoder and the facsimile signal output from the signal compression unit and storing one page of uncompressed facsimile signals. , and a display section that displays the data stored in the memory.

[If you select an uncompressed facsimile signal output by the action code/decoder, only one page of data will be taken into memory, and the data in this memory will be displayed on a sheet of paper or on a screen, so it will not be displayed in the normal size.] Is displayed. Also, when you select a compressed facsimile signal output by the signal compression section, multiple pages of data are captured into memory, and the data in this memory is displayed on a single sheet of paper or screen, so it is displayed in a reduced size. Ru.

[Example code] Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention, in which the present invention is applied to a TV facsimile receiving apparatus.

In FIG. 1, the output of an antenna 1 is guided to a receiving section 2, which receives a television signal, extracts a facsimile signal superimposed on the audio signal of the television signal, and outputs it to a decoder 3. Decoder 3 is 4
Demodulates the phase modulated facsimile signal, performs serial conversion processing, descrambling processing, deinterleaving processing of the demodulated differential parallel signals (I signal, Q signal), and decompression processing of the signal compressed according to the G3 standard, The facsimile signal subjected to these processes is output to the signal compression section 4. The signal compression unit 4 compresses the facsimile signal by 1/3 in the vertical direction (vertical direction) and 1/3 in the horizontal direction (horizontal direction) by compression processing such as thinning out the facsimile signal, and this compressed facsimile signal is selected by the first changeover switch SW1. It is led to terminal a1. The output of the decoder 3, that is, the uncompressed facsimile signal is led to the other selection terminal b1 of the first changeover switch SW1, and this selection position is switched by a switching signal from the system control section 5. The facsimile signal selected by the first changeover switch SW1 is guided to the memory 6. The memory 6 has a capacity to store one page (A4 size) of uncompressed facsimile signals, and data is written to the memory 6 based on the write timing signal of the system control section 5 and the timing signal of the monitor synchronization timing generation section 9. It is read out based on a read timing signal. Further, the write and read ranges of the memory 6 are controlled by a write position designation signal and a read position designation signal of the system control unit 5, respectively. The output of this memory 6 is led to a printer 7, which is a display section, and a signal compression section 8, respectively. The signal compression unit 8 compresses the facsimile signal by 1/2 in the vertical direction (vertical direction) and 1/2 in the horizontal direction (horizontal direction) by compression processing such as thinning out the facsimile signal. Here, if the number of vertical dots of the facsimile signal (video signal) of one page (A4 size) stored in the memory 6 is n1, and the number of horizontal dots is m, then the number of vertical dots of the double-speed scanning monitor (not shown) is (number of horizontal lines) is approximately n/
2. Since the number of horizontal dots is approximately m/2, the monitor is A4
Data for half a page of size is displayed. The facsimile signal compressed by the signal compression section 8 is transferred to the second changeover switch S.
W, is guided to selection terminal a, of W. The output of the memory 6, that is, the facsimile signal that is not compressed by the signal compressor 8, is led to the other selection terminal b2 of the second changeover switch SW2, and the selection position of the second changeover switch SW2 is determined by the system control unit. It can be switched using the switching signal No. 5. Second
The facsimile signal selected by the changeover switch SW2 is output as a video signal to the RGB signal output terminal.

The monitor synchronization timing generating section 9 outputs a read timing signal to the memory 6 to read data at half the speed of the double speed scan, and also generates horizontal and vertical synchronization signals for the double speed scan in synchronization with this read timing signal as RGB signals. Signal output terminal specific power. Therefore, RGB signals for double speed RGB signal output terminal ratio are output, and RG
A double speed monitor serving as a display section is connected to the B signal output terminal t'.

The system control section 5 controls various circuits as described above in response to command signals from the key panel 10.

The key panel 10 is provided with various operation keys, and normal output mode, reduced output mode, enlarged output mode, etc. can be selected using the operation keys. Furthermore, it is possible to select whether to display only the printer 7, only the monitor, or both the printer 7 and the monitor, and furthermore, it is possible to select whether the display area on the monitor is the upper half or the lower half.

In the above configuration, when the normal output mode is selected, the system control unit 5 outputs a switching signal to switch the first switching switch S.
W1 is switched to the selected position b1 side, and second changeover switch SW2 is switched to the selected position b2 side. The facsimile signal from the receiving section 2 is taken into the memory 6 via the first changeover switch SW1 without passing through the signal compression section 4, and the uncompressed facsimile signal for one page is stored in the memory 6 as data. . When the printer 7 is selected as the display section, the data in the memory 6 is read out based on the read timing signal and printed out on A4 size printing paper. Therefore, one page of facsimile signals is hard-copied onto A4 size print paper. When the monitor is selected as the display section, the upper half or lower half of the data in the memory 6 (controlled by the readout position designation signal) is read out based on the readout timing signal, and the facsimile signal of this upper half or lower half is read out based on the readout timing signal. is compressed for double-speed scanning by the signal compression unit 8, and sent to the monitor via the second changeover switch SW2.
The upper half or lower half of the page is displayed. Therefore,
Half a page of facsimile signal data is soft-copied in normal size.

When the reduced output mode is selected, the system control unit 5 outputs a switching signal to switch the first changeover switch SW to the selection position al side and the second changeover switch SW2 to the selection position b2 side. The facsimile signal from the receiving section 2 is compressed by the signal compressing section 4, and the compressed facsimile signal is taken into the memory 6 via the first changeover switch SWl. The memory 6 stores nine pages of facsimile signals for compressed facsimile signals. Then, when the printer 7 is selected as the display section, the data in the memory 6 is read out based on the read timing signal and the A4
Printed out on size paper. Therefore,
As shown in Figure 2, one page of compressed facsimile signal data is displayed in one section, and nine pages of compressed facsimile signal data are hard-copied onto A4-sized paper. . When the monitor is selected as the display section, the upper half or lower half of the data in the memory 6 (controlled by the readout position designation signal) is read out based on the readout timing signal, and the facsimile signal of this upper half or lower half is read out based on the readout timing signal. is compressed for double-speed scanning in the signal compression section 8 and sent to the monitor via the second changeover switch SW2, so that the upper half or lower half of all the data in the memory 6 is displayed on the monitor. Therefore, 4.5 pages of compressed facsimile signal data are reduced and soft-copied.

When the enlarged output mode is selected, the system control unit 5 outputs a switching signal and the first switching switch SW1 moves to the selected position b1.
On the side, the second changeover switch SW2 is switched to the selection position a2 side. The facsimile signal from the receiving section 2 is taken into the memory 6 via the first changeover switch SW1 without passing through the signal compression section 4, and the uncompressed facsimile signal for one page is stored in the memory 6 as data. .

In this enlarged output mode, the display section is set as a monitor, and the area divided by dotted lines shown in FIG. 3 is designated. Then, that area is designated by the read position designation signal, and only the data in that area is read out based on the read timing signal. The read facsimile signal is sent to the monitor via the second changeover switch SW2 without passing through the signal compression section 8, and the data of the facsimile signal in the above area is displayed on the monitor. Therefore, 4 in normal output mode
The data is enlarged to twice the size and soft copied.

In this embodiment, both the printer 7 and the monitor are used as the display unit, but it may be one of them, or
Anything other than these may be used as long as it can be visually displayed. Also, by changing the compression ratios of the signal compression units 4 and 8, and by using the synchronization signal of the monitor synchronization timing generation unit 9 for normal scan, it is possible to display data with various compression ratios. It can also be easily displayed on a monitor. Further, in this embodiment, the upper half or the lower half of the A4 size stored in the memory 6 is selectively displayed, but the designation of the readout position at the time of reading may be varied and the display may be scrolled. .

[Effects of the Invention] As described above, according to the present invention, a received uncompressed facsimile signal and a compressed facsimile signal obtained by compressing the received facsimile signal can be selectively stored in one page of storage capacity. Since the configuration is such that the uncompressed facsimile signal is imported into the memory and displayed, one page's worth of uncompressed data will be displayed at the normal size. Furthermore, if the compressed facsimile signal is taken into memory and displayed, it will be reduced and multiple pages of data will be displayed, which has the effect of preventing the wastage of printed paper due to unnecessary information. .

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, FIG. 1 is a circuit block diagram of a TV facsimile receiving device, FIG. 2 is a diagram showing the layout of printouts in compressed output mode, and FIG. FIG. 3 is a diagram showing a read range in enlarged output mode. 2... Receiving section, 3... Decoder, 4.8... Signal compression section, 6... Memory, 7... Printer (display section)
. Procedural amendment 0. ) 1990 Patent Application No. 145989 2, Title of Invention Facsimile Device 3, Relationship with the Amendment Person Case

Claims (1)

[Claims] (1) A receiving section that receives a facsimile signal, a decoder that demodulates the facsimile signal received by this receiving section, a signal compression section that compresses the facsimile signal demodulated by this decoder, and a facsimile signal outputted by the decoder and the It is characterized by comprising a memory that selectively guides the facsimile signal output by the signal compression section and has a capacity to store one page of uncompressed facsimile signals, and a display section that displays the data stored in this memory. facsimile machine.