JPH03249866A - Facsimile broadcasting reception equipment - Google Patents

Abstract

PURPOSE:To select only information which is really required among facsimile programs to be broadcasted and to efficiently hard-copy it by storing picture signals before and after decoding and recognizing decoded information on the screen of a display monitor. CONSTITUTION:Facsimile signals are respectively given to a picture signal decoding part 4 and a system control part 5. The picture signal decoding part 4 decodes the picture signal separated from the facsimile signal or the picture signal before decoding but once stored in a memory part 6 through the picture signal decoding part 4, and transmits the decoded picture signal to the memory part 6. Then, the decoded picture signal, which is stored in the memory part 6, is displayed on the screen of the display monitor 10 through a video interface part 7 in the form of a soft-copy, the information is recognized and it is printed on a recording paper. Thus, only information which is really required is selected and it can efficiently be hard-copied.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a facsimile broadcast receiving device, and in particular, a facsimile channel using a second subcarrier is provided in the audio frequency band of television broadcast waves, and a facsimile signal is added to the audio signal. The present invention relates to a facsimile broadcast receiving apparatus that receives facsimile broadcasts that are multiplexed and transmitted.

[Prior Art] In February 1989, a facsimile broadcasting method was introduced in telecommunications technology, in which a facsimile channel is provided in the audio frequency band of television broadcast waves using a second subcarrier, and the facsimile signal is multiplexed and transmitted on the audio signal. A report was submitted by the council.

Figures 3 and 4 show part of the specifications of the facsimile broadcasting system reported in the report. FIG. 2 is a spectrum diagram illustrating how frequency multiplexing is performed.

As shown in Fig. 3, the facsimile signal is a control signal (
25) and an image signal (23).

The network signal (21) in the control signal (25) is a signal for transmitting operational data between broadcast stations, and the program selection signal (22) is a signal for transmitting control information regarding program selection on the receiver side. A page or program end signal (20 is a signal indicating to the receiving device the end of one page's worth of image signals, and also contains information regarding the presence or absence of the next page, etc.).

Further, the image signal (23) is an image data signal for one page.

Next, the spectrum of an audio signal system in which facsimile signals are frequency-multiplexed will be explained based on FIG.

The facsimile signal is on the main audio channel and 31.5
70.8 KHz (
A data channel is provided using the second subcarrier (also called facsimile signal subcarrier) of 4,5XfH, fH (horizontal synchronization signal frequency), and the data is transmitted by performing differential four-phase phase modulation at a transmission rate of 16 Kb/s. .

The WIJS diagram is a block diagram showing an example of the configuration of a conventional facsimile broadcast receiver based on the above specifications. In the figure, (1) is an antenna that receives television broadcast waves, and (2) is an antenna (1 ) is a tuner section that receives the desired channel from the radio waves received by the receiver and obtains the audio detection output.

(3) is a demodulation section that separates the facsimile channel signal from the audio detection output from the tuner section (2) and demodulates the one-phase modulated signal to obtain a facsimile signal. An image signal decoding unit decodes the image signal portion from the facsimile signal, and (5) a system control unit that decodes the control signal portion from the facsimile signal demodulated by the demodulation unit (3) and controls this system. The image signal decoding unit (8) is a printing unit that prints the image signal decoded by the image signal decoding unit (0) on recording paper (9) as a hard copy.

Next, the operation of the above configuration will be explained.

Television broadcast waves received by antenna (1) are
Select the desired channel in the tuner section (2),
Obtain audio detection output. Then, the voice detection output is input to a demodulation section (3) to separate the facsimile channel signal from the voice detection output.

The phase modulated signal is demodulated to obtain a facsimile signal.

This facsimile signal is given to the image signal decoding section (0) and the system control section (5), and in the image signal decoding 1! (4), the image signal is separated from the facsimile signal and decoded. is constituted by, for example, a microcomputer, and compares and verifies information input from a keyboard (not shown) or the like with a control signal separated from a facsimile signal, and outputs a control signal to the printing section (8).

Subsequently, in the printing section (8), a printing mechanism (not shown) is activated by a signal from the system control section (5).
is controlled, and the decoded image signal inputted from the image signal decoding section (4) is printed as a hard copy on recording paper (3).

In addition, as a program reception method, by inputting the reception time, reception channel, program number, etc. from a keyboard in advance, it is possible to receive only the necessary programs and obtain the information as a hard copy.

[2 Problems to be Solved by the Invention] Conventional facsimile broadcast receiving devices are configured as described above, so even if the program reception is performed correctly, the information may not be truly necessary information. - Even if the information only needs to be viewed once and does not need to be recorded, it is printed on recording paper as a hard copy, so there is a problem in that the recording paper is wasted.

This invention was made to solve the above-mentioned problems, and it is possible to select only the truly necessary information and efficiently make a hard copy, thereby avoiding wasteful consumption of recording paper. The purpose of the present invention is to provide a facsimile broadcast receiving device.

[Means for Solving the Problems] A facsimile broadcast receiving apparatus according to the present invention includes a memory unit for storing image signals before and after decoding, and a memory unit for displaying the stored decoded image signals on a screen of a display monitor. and a video interface section, and the image signal is transmitted to the printing section through the memory section.

[Operation] According to the present invention, the decoded image signal is displayed in the form of a soft copy on the screen of the display monitor connected to the video interface unit, the information is confirmed, and the truly necessary information is displayed. You can select Mira and print it on recording paper as a hard copy.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing the configuration of a facsimile broadcast receiving apparatus according to an embodiment of the present invention.
Since (1) to (5), (8), and (9) are the same as the conventional example shown in FIG. 5, the same reference numerals are given to the corresponding parts and detailed explanation thereof will be omitted.

In FIG. 1, (6) is a memory section that stores the image signal before decoding sent through the image signal decoding section (0) or the image signal decoded by the image signal decoding section (0);
7) is a video interface section for displaying the decoded image signal stored in the memory section (6) in the form of a soft copy on the screen of the display monitor (10).

Next, the operation of the above configuration will be explained.

Television broadcast waves received by antenna (1) are
Select the desired channel in the tuner section (2),
Obtain audio detection output.

Then, the voice detection output is input to a demodulation section (3), which separates the facsimile channel signal from the voice detection output and demodulates the phase modulated signal to obtain a facsimile signal.

This facsimile signal is given to an image signal decoding section (4) and a system control section (5), respectively, and is sent through the image signal decoding section (in 0, the image signal separated from the facsimile signal or the image signal decoding section (4), and once stored in the memory. The undecoded image signal stored in the section (8) is decoded, and the decoded image signal is sent to the memory section (6).

Next, the decoded image signal stored in the memory section (6) is displayed in the form of a soft copy on the screen of the display monitor (lO) through the video interface section (7), and is also printed as necessary. The image is printed as a hard copy on recording paper (9) by the copying unit (8).

On the other hand, the system control unit (5) it compares and collates the control signal separated from the facsimile signal demodulated by the demodulation unit (3) with information input from a keyboard (not shown) or the like to generate the above-mentioned image. Signal decoding section (0, memory section (6), video interface section (7), printing section (
8).

Here, a method of receiving a facsimile broadcast program will be explained.

As for how to receive a program, when a program is being broadcast,
Simultaneous reception, in which the recipient is near the receiver and checks the information being sent on a monitor, and the receiver can reserve the reception time, reception channel, program number, etc. on the receiver in advance from a keyboard, etc. After inputting the reserved program, when the reserved time comes, the R standby which receives the reserved program is considered to be the Receive J.

Next, the memory section (8) in these two reception methods
The method of using the memory will be explained with reference to FIG.

Fig. 2(a) shows an example of the structure of the memory area when "simultaneous reception" is performed, and Fig. 2(b) shows an example of the structure of the memory area when "r standby is receiving". Department (Ml)
is an area where the image signal after decoding is stored, and the other part (x2) is an area where the image signal before decoding is stored.

First, at the time of r simultaneous reception, the decoded image signal is written in an area corresponding to one program page set in the memory section (6), and all or part of it is written through the video interface section (7). part on the display monitor (1
0) is displayed on the entire screen, and the screen is scrolled as necessary.

By doing this, the receiver can check the content of the program sent to him in soft copy form on the monitor screen, and then, if necessary, use the keyboard (not shown) or the like to control the system control section. By applying a control signal for printing to the printing unit (8) through (5), the information written in the memory unit (6) is read out and printed to obtain a hard copy.

On the other hand, when the standby mode is "Receive", the area of the image signal after decoding is 1/3 to 115 of the area for one page of the program.
It is configured to expand the area of the image signal before decoding, and receives programs set in advance by the receiver while sequentially storing them in the memory unit (6) as image signals before decoding. Then, the undecoded image signal is decoded and displayed on the screen of the display monitor (10) through the video interface section (7). At this time,
Although it is not possible to check all of the programs at once on the screen of the display monitor (10), the contents of each program can be checked by sequentially scrolling through portions.

In this way, even in the case of receiving 1 in r standby, after receiving a program, you can check the memorized program contents in soft copy form on the screen of the monitor (10), and select only the information that is truly necessary. Then, a hard copy is obtained by the printing section (8). The signal flow in the case of printing is such that the undecoded image signal in the memory section (6) is sent to the image signal decoding section (4) for decoding, A predetermined hard copy is obtained by transmitting the decoded image signal to the memory section (6) again, and sequentially sending the signal to the printing section (8) for printing.

[Effects of the Invention] As described above, according to the present invention, the image signals before and after decoding are stored in memory, and the information after decoding can be checked on the screen of the display monitor. To achieve the effect that only truly necessary information can be selected from a facsimile program and efficiently hard-copied, and wasteful consumption of recording paper can be avoided.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a facsimile broadcast receiving apparatus according to an embodiment of the present invention, FIG. 2 is a diagram showing the configuration of the memory area of the memory section of FIG. 1, and FIG. 3 is a diagram showing the configuration of a facsimile signal. Figure shown. FIG. 4 is a spectrum diagram in which a facsimile signal is frequency-multiplexed with an audio signal, and FIG. 5 is a block diagram showing the configuration of a conventional facsimile broadcast receiving apparatus. (1)... Antenna, (2)... Tuner section, (3
)...Decoder 11, (0...Image signal decoder, (8)
...Memory section, (7)...Video interface section, (8) ---Printing section, (8) ---Recording paper,
(10) ---Display monitor. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] (1) A tuner section that receives a facsimile broadcast transmitted by multiplexing a facsimile signal onto the audio second subcarrier of a television signal, and a demodulation section that separates and demodulates the facsimile channel signal from the audio detection output of this tuner section. an image signal decoding section that separates and decodes an image signal from the facsimile signal demodulated by the demodulation section; and a printing section that prints the image signal decoded by the image signal decoding section on recording paper. A facsimile broadcast receiving apparatus comprising a memory section for storing image signals before and after decoding, and a video interface section for displaying the decoded image signals stored in the memory section on the screen of a display monitor. Features of facsimile broadcast receiving equipment.