JPH02202262A - Facsimile broadcast receiver - Google Patents

Abstract

PURPOSE:To automatically receive a facsimile circuit signal from a telephone FAX terminal by storing the telephone number of this FAX terminal and controls this terminal to keep it in a waiting state in case a reception request is received for the facsimile circuit signal in a reception process of a facsimile broadcast signal. CONSTITUTION:A telephone number proper to a telephone FAX terminal 20 is received by a telephone circuit communication procedure control part 2 from a telephone FAX terminal 20 via a network control circuit NCU 4 and a MO DEM 5. Thus the part 2 stores the received telephone number and a flag showing the reception of a reception request from the terminal 20 into an internal memory of the part 2. Then the part 2 transmits a DCN signal (circuit disconnection instruction signal) to the terminal 20. Thus the terminal 20 is set in a waiting state.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention has a function of receiving and processing a facsimile broadcast signal multiplexed with an existing television audio signal, and a facsimile line signal using an existing telephone line. Regarding facsimile broadcast receiving equipment each equipped with functions for transmitting and receiving processing,
More specifically, the present invention relates to a facsimile broadcast receiving apparatus that has devised signal processing when a request to receive a facsimile line signal is received during reception processing of a facsimile broadcast signal.

[Prior Art] In recent years, in addition to telephone facsimile devices that transmit and receive facsimile signals (facsimile line signals) using telephone lines, facsimile broadcasting devices that use television broadcasts to transmit facsimile signals (facsimile broadcast signals) have been developed. Various studies are being conducted with the aim of putting it into practical use.

Facsimile broadcasting is a broadcasting system that can record image information by receiving facsimile broadcasting signals multiplexed into television signals.

It is being considered that facsimile broadcasting may utilize satellite TV radio waves or terrestrial TV radio waves.

FIG. 3 shows the signal transmission band of terrestrial facsimile broadcasting. As shown in the figure, a facsimile channel using a second subcarrier is provided in the audio frequency band of the television signal,
This second subcarrier is modulated by the facsimile broadcast signal and multiplexed with the audio signal (main and sub channels).

When facsimile broadcasting was put into practical use, its terminal equipment also
It is desired that a device (referred to as a facsimile broadcast receiving device) be developed which has both the functions of receiving and processing facsimile broadcast signals as well as the function of receiving and processing conventional facsimile line signals.

In this case, there are two types of signal input: a facsimile broadcast signal and a facsimile line signal. On the other hand, since the signal processing of both receivers is the same except for a part, the hardware configuration of the receiving device is a shared configuration in which all the means from the image information decoding processing means to the recording means are used in common. It is desirable to do so.

[Problems to be Solved by the Invention] As described above, when the receiving device is of a shared configuration, it is impossible to receive both the facsimile broadcast signal and the facsimile line signal at the same time.

Therefore, when there is a request to receive a facsimile line signal from a telephone FAX terminal during the reception process of a facsimile broadcast signal, the reception of this facsimile line signal must be refused.

For this purpose, the network control circuit (N
It is possible to take measures such as controlling the CU).

If the telephone FAX terminal sends a facsimile line signal to the facsimile broadcast receiving device,
It is necessary to make a telephone call and transmit a facsimile line signal at a time when the facsimile broadcast receiving apparatus is not performing reception processing of facsimile broadcast signals.

However, it is extremely difficult to confirm that the facsimile broadcast receiving device is not performing reception processing of facsimile broadcast signals.

Therefore, in some cases, no matter how many times you make a call from a telephone FAX terminal, a situation may occur where the facsimile broadcast receiving device is busy or the NCU does not switch to the facsimile side.

In such a case, the operator at the telephone FAX terminal gradually becomes irritated, which is not very good for his mental health.

Therefore, the present invention takes these points into consideration, and even in the above-mentioned case, it is possible to automatically transfer facsimile line signals from a telephone FAX terminal without bothering the operator of the telephone FAX terminal. An object of the present invention is to provide a facsimile broadcast receiving device that can receive facsimile broadcasts.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has a function of receiving and processing facsimile broadcast signals that are multiplexed with the current television audio signals and transmitted, and a function of receiving and processing the current telephone line. In a facsimile broadcast receiving device equipped with the functions of transmitting and receiving facsimile line signals using At the same time, the telephone FAX terminal is controlled to be in a standby state, and when the receiving process of the facsimile broadcast signal is completed, the line of the above telephone FAX terminal is established, and then this telephone FAX terminal is
This system is characterized in that it requests the AX terminal to send a facsimile line signal.

[Operation] It is assumed that a telephone call is made from the telephone FAX terminal 20 to the facsimile broadcast receiving apparatus 10, which is in the process of receiving a facsimile broadcast signal, to request reception of a facsimile line signal.

In that case, the reception process is performed according to the following procedure.

(1) When there is a request to receive a facsimile line signal during the reception process of a facsimile broadcast signal, the telephone number unique to the telephone FAX terminal is stored, and the telephone FAX terminal is controlled to be in a standby state. As a result, the telephone line with the telephone FAX terminal is disconnected.

(2) When the facsimile broadcast signal reception processing is completed, a line with the telephone FAX terminal 20 is established. This line establishment is performed using the stored telephone number unique to the telephone FAX terminal 20.

(3) After establishing the line, this telephone FAX terminal 20
A request is made to send a facsimile line signal.

In this way, it is possible to automatically receive and process the facsimile line signal even during the process of receiving the facsimile broadcast signal.

To accomplish each of the steps (1) to (3), other detailed steps are actually required.

[Example] Next, an example of the present invention will be described in detail with reference to FIG. 1 and subsequent figures.

FIG. 1 shows the configuration of a facsimile broadcast receiving apparatus 10 for implementing the present invention, and 2o is a telephone FAX terminal (
(transmitting terminal), which can be a well-known facsimile machine or facsimile broadcast receiving device.

It is assumed that the telephone FAX II terminal 20 is equipped with at least the following means.

First, a means for interpreting a code indicating that a facsimile broadcast signal is being received from a facsimile broadcast receiving apparatus.

Second, the telephone F transmitted from the facsimile broadcast receiving device
Means capable of transmitting a telephone number unique to a telephone FAX terminal to a facsimile broadcast receiving device in response to a code indicating a request to transmit a telephone number unique to an AX terminal.

Thirdly, a means for transmitting a facsimile line signal in response to a code indicating a request for transmitting a facsimile line signal transmitted from a facsimile broadcast receiving apparatus.

The facsimile broadcast receiving apparatus 10 of the present invention is composed of a plurality of means as described below.

The facsimile broadcast signal reception control section 1 is a reception control section for extracting only necessary information from the facsimile broadcast signal that can be multiplexed and transmitted between television audio signals.

2 is a telephone line communication procedure control unit.

This is for controlling communication procedures for transmitting and receiving facsimile signals using telephone lines, and includes the following means a=d.

a. Means for generating a code indicating that facsimile broadcast signal reception processing is in progress; Means for generating a code for requesting the telephone FAX terminal 20 to transmit a telephone number unique to the telephone FAX terminal 20 C0 telephone Telephone FAX sent from FAX terminal 20
The storage means d for storing a telephone number unique to the i-terminal 20 and the means 3 for generating a code for requesting the transmission of a facsimile line signal are a telephone unit, and the telephone line communication procedure control unit 2 Includes an auto-dial means that can automatically make calls according to instructions.

4 is a network control circuit (NCU), which is a circuit for switching the telephone line to the telephone section 3 or the modem 5 according to instructions from the telephone line communication procedure control section 2;

Reference numeral 6 denotes a main control section for controlling the entire facsimile broadcast receiving apparatus 10.

7 is an image information encoding/decoding processing section. This processing section 7 decodes facsimile image information from the facsimile broadcast signal reception control section 1 or the telephone line communication procedure control section 2 input via the main control section 6. Furthermore, the image information for transmission for facsimile line signals inputted from the recording processing section 8 is encoded.

8 is an image information reading/recording processing section.

In this processing section 8, decoded facsimile image information inputted from the image information encoding/decoding processing section 7 is recorded.

It also reads a document for facsimile transmission using a telephone line and outputs it to the image information encoding/decoding processing section 7.

Next, the processing operation of the present invention will be explained. Before that, the operation when receiving a facsimile broadcast signal and the operation when receiving a facsimile line signal will be explained separately.

First, the operation when receiving (8 processing) a facsimile broadcast signal will be explained.

Of the facsimile broadcast signals input to the facsimile broadcast signal reception control unit 1, only information on programs selected in advance according to the user's wishes is extracted, and signal processing is performed according to a predetermined algorithm, so that only the facsimile image information is Image information encoding/decoding processing section 7 via control section 6
is output to.

At this time, in response to a request from the facsimile broadcast signal reception control section 1, the main control section 6 instructs the telephone line communication procedure control section 2 to receive facsimile broadcast signals in order to set the entire system to receive only facsimile broadcast signals. Notifies that a signal is being received and processed.

On the other hand, facsimile broadcast signal reception (,
! The image information encoding/decoding processing section 7 that receives the facsimile image information from the flilJ 611 section 1 decodes the facsimile image information according to a predetermined algorithm, and reads and records the decoded facsimile image information as image information. It is output to the processing section 8.

The image information reading/recording processing unit 8 that has received the decoded facsimile image information records the received facsimile image information on a recording medium such as recording paper using a recording device such as a thermal head.

The above is an explanation of the operation when receiving and processing a facsimile broadcast signal.

Next, the operation when receiving and processing facsimile line signals using a telephone line will be explained.

Facsimile broadcast reception as in this example (for 8 devices 10,
For example, suppose that there is a telephone call from a 03 type general telephone FAX terminal 20 to request reception of a facsimile line signal.

If the NCU 4 is set to automatically switch the telephone line to the modem 5 side in response to a telephone ringing signal, the NCU 4 switches the telephone line 35 to the modem S side in response to a telephone ringing signal from the telephone FAX terminal 2o. Establish a line.

When the line establishment is completed, the telephone line communication procedure control unit 2 and the telephone FA via the modem 5, NCU 4 and telephone line 35
Mutual negotiation is performed with the X terminal 20. Thereafter, facsimile image information is transmitted from the telephone FAX terminal 20.

At this time, in response to a request from the telephone line communication procedure control section 2, the main control section 6 instructs the facsimile broadcast signal reception control section 1 to transmit the facsimile line signal in order to set the entire system to receive and process only facsimile line signals. Notifies that a signal is being received and processed.

On the other hand, facsimile image information in the facsimile line signal transmitted from the telephone FAX terminal 20 through the telephone line 35 is encoded into image information via the NCU 4, the modem 5, the telephone line communication procedure control section 2, and the main control section 6. - Input to the decoding processing unit 7.

The image information encoding/decoding processing unit 7 that receives the facsimile image information in the facsimile line signal decodes the facsimile image information according to a predetermined algorithm, reads the image information from the decoded facsimile image information, and It is output to the recording processing section 8. The image information reading/recording processing unit 8 that receives the decoded facsimile image information records the facsimile image information on a recording medium such as recording paper using its recording device.

The above is an explanation of the operation when receiving and processing facsimile line signals using a telephone line.

Next, the operation when there is a request to receive a facsimile line signal from the telephone FAX terminal 20 during the reception process of facsimile broadcast (No. 3) will be explained in detail with reference to FIG.

Assume that while a facsimile broadcast signal is being received and processed, there is a telephone call from the telephone FAX terminal 20 to request reception of a facsimile line signal.

Then, as mentioned above, the NCU 4 uses the telephone FAX terminal 20.
The telephone line 36 is switched to the modem 5 side in response to a telephone call signal from the telephone, and a line is established.

As explained above, the communication procedure control unit 2 side is informed by the main control unit 6 that the reception process of the facsimile broadcast signal is in progress, so it recognizes that it cannot receive the facsimile line signal. There is.

Therefore, when the telephone line 35 is established, the telephone line communication procedure control unit 2 requests transmission of a code indicating that a facsimile broadcast signal is being received and a telephone number unique to the telephone FAX terminal 20. is transmitted to the telephone FAX terminal 20 via the modem 5 and NCU 4.

Then, from the telephone FAX terminal 20 side, the telephone FAX terminal 2
0 unique telephone number is transmitted to the telephone line communication procedure control section 2 via the NCU 4 and the modem 5 (then, this telephone line communication procedure control section 2 stores the internal storage means provided in this control section 2). At (1!I not shown), a telephone number unique to the telephone/FAX terminal 20 that has been successfully sent and a flag indicating that there is a reception request from the terminal 20111 are respectively stored.

When the telephone line communication procedure control unit 2 finishes storing the telephone number unique to the telephone FAX terminal 20 and the flag indicating that a reception request has been made, the telephone line communication procedure control unit 2 then outputs the DCN signal (line disconnection command signal) from the telephone/FAX terminal 2
Send to 0m.

As a result, the telephone FAX terminal 20 enters a standby state.

At the same time, the NCU 4 is turned on-hook, the telephone line is closed, and the control for receiving facsimile line signals is completed.

When the telephone FAX terminal 20 enters the standby state, the facsimile broadcast receiving apparatus 10 of the present invention concentrates on receiving and processing facsimile broadcast signals. When the reception process of the facsimile broadcast signal is completed, the main control section 6 notifies the telephone line communication procedure control section 2 that the reception process of the facsimile broadcast signal is completed.

The telephone line communication procedure control unit 2, which has learned that the reception process of the facsimile broadcast signal has been completed, controls the main control unit according to the flag indicating that there is a reception request that has been stored in the internal storage means of the control unit 2. The unit 6 is requested to make settings for receiving and processing facsimile line signals.

The main control unit 6, which has received the setting request for receiving and processing facsimile line signals, instructs the facsimile broadcast signal reception control unit 1 to set up the facsimile line signal so that the entire system receives and processes only facsimile line signals. Notifies that a signal is being received and prohibits reception of facsimile broadcast signals.

Next, the telephone line communication procedure control section 2 outputs the telephone number unique to the telephone FAXi terminal 20 stored in the internal storage means of this control section 2 to the telephone section 3, and
to make a telephone call to request transmission of a facsimile line signal.

Based on this command, the telephone section 3 makes a telephone call to the telephone FAXm terminal 20 via the NCU 4. When the telephone FAX terminal 20 responds to this call and goes into an off-hook state, the NCU 4 switches the telephone line 35 to the modem 5 and establishes the line.

When the line is established, the telephone line communication procedure control unit 2 transmits a code indicating a request to send a facsimile line signal to the telephone FAX terminal 20.

When the telephone facsimile terminal 20 receives the code indicating the send (g request), it performs reception processing of the facsimile line signal using the telephone line, as in the normal operation explanation.

The above communication procedure is a processing procedure when there is a request to receive a facsimile line signal during the process of receiving a facsimile broadcast signal, and the facsimile line signal of a telephone FAX terminal on standby can be automatically received.

[Effects of the Invention] As explained above, according to the facsimile-equipped broadcast receiving apparatus of the present invention, when a request to receive a facsimile line signal is received during reception processing of a facsimile broadcast signal, the telephone number of the telephone FAX terminal is In addition to storing information, the telephone FAX terminal is controlled to be in a standby state.

According to this, as soon as the reception of the facsimile broadcast signal is completed, the telephone line is automatically established.
without bothering the operator at the telephone/FAX terminal.
It has the feature of automatically receiving and processing facsimile line signals from telephone FAX terminals.

・Main control section ・Image information encoding/decoding processing unit ・Image information reading/recording processing unit ・Facsimile broadcast receiving device ・Telephone FAX terminal

[Brief explanation of the drawing]

FIG. 1 is a system diagram showing an example of a facsimile broadcast receiving apparatus according to the present invention, FIG. 2 is a diagram showing an example of its communication procedure, and FIG. 3 is a diagram showing a signal transmission band of facsimile broadcasting.

Claims (1)

[Claims] (1) Facsimile broadcasting that has both the function of receiving and processing facsimile broadcast signals that are multiplexed with current television audio signals and transmitting them, and the function of transmitting and processing facsimile line signals using current telephone lines. In the receiving device, when there is a request to receive a facsimile line signal during reception processing of a facsimile broadcast signal, it stores the telephone number of the telephone FAX terminal, controls the telephone FAX terminal in a standby state, and performs reception processing of the facsimile broadcast signal. After completing the above telephone FAX terminal line establishment, this telephone FAX terminal is
A facsimile broadcast receiving apparatus characterized in that it requests an AX terminal to transmit a facsimile line signal.