JPH06103919B2 - Facsimile broadcasting receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention has a function of receiving and processing a facsimile broadcast signal multiplexed with a current television audio signal, and a facsimile line signal using a current telephone line. The present invention relates to a facsimile broadcast receiving device having a transmission / reception processing function,
More particularly, the present invention relates to a facsimile broadcast receiving apparatus that devises signal processing when a facsimile broadcast signal that requires reception processing arrives during reception processing of a facsimile line signal.

[Prior Art] In recent years, in addition to a telephone facsimile device that transmits and receives a facsimile signal (facsimile line signal) using a telephone line, a facsimile broadcasting device that transmits a facsimile signal (facsimile broadcasting signal) using television broadcasting is used. Various studies have been conducted for practical use.

Facsimile broadcasting is a broadcasting system capable of receiving a facsimile signal multiplexed in a television signal and recording image information.

For facsimile broadcasting, it is considered to use satellite television broadcasting waves or terrestrial television broadcasting waves.

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

When facsimile broadcasting is put into practical use, its terminal devices will also
The appearance of a device (called a facsimile broadcast receiving device) having both functions of receiving and processing a conventional facsimile circuit signal in addition to the function of receiving and processing a facsimile broadcasting signal is desired.

In this case, there are two types of signal inputs, a facsimile broadcast signal and a facsimile line signal. On the other hand, the hardware configuration of the receiving device is the same in both parts except for a part of the signal processing, and therefore all the means from the decoding processing means of the image information to the recording means are commonly used. It is desirable to do.

[Problems to be Solved by the Invention] By the way, as described above, when the receiving device is configured to be shared, it is impossible to simultaneously receive both the facsimile broadcast signal and the facsimile line signal.

Therefore, the reception process of the facsimile broadcast signal cannot be performed during the reception process of the facsimile line signal.
However, since the facsimile broadcast signal is transient, it is impossible to receive the same image information again unless it is rebroadcast.

Thus, when a facsimile broadcast signal that coincides with the program or page number selected in advance by the user's request arrives during the reception processing of the facsimile line signal, it cannot be received.

Even if the facsimile broadcast program is repeatedly broadcast, if the repetition cycle is long, the waiting time for re-reception of the missed facsimile broadcast program becomes long, and the facsimile broadcast receiver may receive it. On the other hand, there is a possibility that it may cause irritation.

Therefore, in the present invention, such a point is taken into consideration, and the facsimile broadcast signal whose transmission timing cannot be controlled by the receiving side is preferentially processed for reception, and the facsimile line signal reception processing is performed. It is an object of the present invention to provide a facsimile broadcast receiving apparatus that does not fail to receive a broadcast signal.

[Means for Solving the Problems] In order to solve the above problems, according to the present invention, a function of receiving and processing a facsimile broadcast signal multiplexed with a television audio signal and transmitted, and a facsimile using a telephone line. When a facsimile broadcast signal that requires reception processing arrives in a facsimile broadcasting receiver equipped with each of the functions of transmitting and receiving line signals, until the reception processing of only the page during the reception processing of the facsimile line signal is completed, Facsimile broadcast signals that require reception processing are temporarily stored, and when the reception processing of the facsimile line signals is completed, the reception processing of the facsimile line signals is interrupted, and the reception processing of the above facsimile broadcast signals is switched to receive the facsimile broadcast signals. When the processing is completed, the transmission request for the above facsimile line signal will be issued. It is characterized by having done so.

[Operation] It is assumed that during reception processing of a facsimile line signal, a state occurs in which a facsimile broadcast signal requiring reception processing that matches a program or page number selected in advance by the user's request has arrived.

At that time, the receiving process is performed by the following procedure.

(1) When a facsimile broadcast signal requiring the receiving process arrives, the facsimile broadcast signal requiring the receiving process is temporarily stored until the receiving process of only the page during the receiving process of the facsimile line signal is completed.

(2) When the page in the middle of the reception process of the facsimile line signal is completed, the reception process of the facsimile line signal is interrupted and the reception process of the facsimile broadcast signal is continued.

(3) When the reception processing of the facsimile broadcast signal is completed, the transmission request of the facsimile line signal is issued. When the telephone FAX terminal receives the transmission request, the transmission of the original is restarted from the page after the interruption.

In order to perform each of the procedures (1) to (3), a detailed procedure other than this is actually required.

Example Next, an example of the present invention will be described in detail with reference to FIG.

FIG. 1 shows a configuration of a facsimile broadcast receiving apparatus 30 for carrying out the present invention. Reference numeral 20 denotes a telephone FAX terminal (transmission terminal), which is a well-known facsimile apparatus or a facsimile broadcasting receiving apparatus. .

The telephone FAX terminal 20 is assumed to have at least the following means.

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

Secondly, the telephone FA sent from the facsimile broadcast receiver
A means capable of transmitting a telephone number unique to a telephone FAX terminal to a facsimile broadcast receiving apparatus in response to a code indicating a transmission request for a telephone number unique to an X terminal.

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

The facsimile broadcast receiving apparatus 30 of the present invention comprises a plurality of means as described below.

The facsimile broadcast signal reception control unit 1 is a reception control unit for extracting only necessary information from a facsimile broadcast signal multiplexed and transmitted in a gap between television audio signals.

Reference numeral 2 is a facsimile broadcast signal storage unit.

This is to receive the facsimile line signal from the telephone FAX terminal 20 only when the page is in the process of receiving when the facsimile broadcast signal requiring the receiving process that matches the program or page number selected in advance by the user's request arrives. This is a means for temporarily storing this facsimile broadcast signal that needs to be received until the processing is completed.

Reference numeral 3 is a telephone line communication procedure control unit.

This is for controlling a communication procedure for transmitting and receiving a facsimile signal using a telephone line, and includes the following means a to d.

Means for generating a code indicating that a facsimile broadcast signal is being received b. Means for generating a code for requesting the telephone fax terminal 20 to send a telephone number unique to the telephone fax terminal 20 c. Storage means for storing the telephone number unique to the telephone FAX terminal 20 transmitted from the telephone FAX terminal 20 d. Means for generating a code for requesting transmission of a facsimile line signal 4 is a telephone section , And an auto-dial means capable of automatically making a call according to an instruction from the telephone line communication procedure control unit 3.

Reference numeral 5 is a network control circuit (NCU), which is a circuit for switching the telephone line to the telephone unit 4 or the modem 6 in accordance with an instruction from the telephone line communication procedure control unit 3.

Reference numeral 7 is a main control unit for controlling the entire facsimile broadcast receiver 30.

Reference numeral 8 is an image information encoding / decoding processing unit. The processing unit 8 decodes the facsimile image information input from the facsimile broadcast signal reception control unit 1 or the telephone line communication procedure control unit 3 via the main control unit 7. Further, the transmission image information for the facsimile line signal input from the recording processing unit 9 is encoded.

An image information reading / recording processing unit 9 is provided.

In this processing unit 9, the decoded facsimile image information input from the image information encoding / decoding processing unit 8 is recorded.

Further, it reads an original for transmission of a facsimile using a telephone line and outputs it to the image information encoding / decoding processing unit 8.

Subsequently, the processing operation of the present invention will be described. Before that, an operation for receiving a facsimile broadcast signal and an operation for receiving a facsimile line signal will be separately described.

First, the operation when receiving a facsimile broadcast signal will be described.

Of the facsimile broadcast signal input to the facsimile broadcast signal reception control unit 1, only the information of the program selected in advance by the user's request is extracted, signal processing is performed according to a predetermined algorithm, and only the facsimile image information is mainly processed. Image information encoding / decoding processing unit 8 via control unit 7
Is output to.

At this time, the main control unit 7 requests the facsimile broadcast signal reception control unit 1 to send a facsimile broadcast to the telephone line communication procedure control unit 3 so as to set the entire system to receive only the facsimile broadcast signal. Signals that the signal is being processed.

On the other hand, the image information encoding / decoding processing unit 8 that has received the facsimile image information from the facsimile broadcast signal reception control unit 1 via the main control unit 7 decodes the facsimile image information according to a predetermined algorithm, and after decoding And outputs the facsimile image information to the image information reading / recording processing unit 9.

Upon receiving the decoded facsimile image information, the image information reading / recording processing unit 9 records the received facsimile image information on a recording medium such as recording paper by a recording device such as a thermal head.

The above is the description of the operation when the facsimile broadcast signal is received.

Next, the operation in the case of processing the reception of a facsimile line signal using a telephone line will be described.

It is assumed that, for example, a G3 type general telephone FAX terminal 20 makes a telephone call to the facsimile broadcasting receiving apparatus 30 as in this example to request reception of a facsimile line signal.

If the NCU 5 is set to automatically switch the telephone line to the modem 6 side by the telephone call signal, the NCU 5 switches the telephone line 35 to the modem 6 side by the telephone call signal from the telephone FAX terminal 20, Establish a line.

When the line is established, the modem 6, NCU5 and telephone line 35
Through the telephone line communication procedure control unit 3 and the telephone FAX terminal 20
Will be negotiated with each other. Then, the 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 unit 3, the main control unit 7 requests the facsimile broadcast signal reception control unit 1 to set the facsimile system so that the entire system receives and processes only the facsimile line signal. Signals that the signal is being processed.

On the other hand, the facsimile image information in the facsimile line signal transmitted from the telephone FAX terminal 20 through the telephone line 35 is image information encoded via the NCU 5, the modem 6, the telephone line communication procedure control unit 3 and the main control unit 7. It is input to the decryption processing unit 8.

Upon receiving the facsimile image information in the facsimile line signal, the image information encoding / decoding processing unit 8 decodes the facsimile image information according to a predetermined algorithm, and reads and records the decoded facsimile image information as image information. Output to the unit 9. Upon receiving the decoded facsimile image information, the image information reading / recording processing unit 9 records the facsimile image information on a recording medium such as recording paper by the recording device.

The above is the description of the operation in the case of processing the reception of the facsimile line signal using the telephone line.

Next, when the facsimile line signal from the telephone FAX terminal 20 is undergoing the receiving process, the operation when the facsimile broadcasting signal requiring the receiving process that matches the program or page number selected in advance by the user's request arrives will be described. , Will be described in detail with reference to FIG.

When a state in which a facsimile broadcast signal that requires reception processing arrives, the facsimile broadcast signal reception control unit 1
As described above, since the main control unit 7 informs that the facsimile line signal is being received, it recognizes that the facsimile image information in the facsimile broadcast signal cannot be received.

Therefore, the facsimile broadcast signal reception control unit 1 stores the received facsimile broadcast signals that need to be received in the facsimile broadcast signal storage unit 2 in the order of arrival. At the same time, a flag indicating that there is a request for receiving a facsimile broadcast signal is output to the main control unit 7.

The main control unit 7, which has received the flag indicating that the request for receiving the facsimile broadcast signal has been received, processes the facsimile line signal from the telephone FAX terminal 20, and at the same time, the page of the page being received in the facsimile line signal is being processed. Wait for the reception process to be completed.

While receiving the facsimile line signal from the telephone FAX terminal 20, the main control unit 7 waiting for the completion of the reception processing of the page in the middle of the reception processing is that the reception processing of the page in the middle of the reception processing is completed. If it is detected, is the telephone FAX terminal 20 willing to transmit the facsimile line signal on the next page according to the information transmitted from the telephone FAX terminal 20 through the telephone line communication procedure control unit 3, the modem 6 and the NCU 5? Check if

Here, if the telephone FAX terminal 20 has no intention of transmitting the facsimile line signal of the next page, the main control section 7 terminates the reception process of the facsimile line signal. Then, as described above, according to the flag indicating that the facsimile broadcast signal reception control unit 1 has received the request for receiving the facsimile broadcast signal, the facsimile broadcast signal reception control unit 1 stores the information in the facsimile broadcast signal storage unit 2. Permits the decoding process of the stored facsimile broadcast signal.

If the telephone FAX terminal 20 has an intention to transmit the facsimile line signal on the next page, the main control unit 7 instructs the telephone line communication procedure control unit 3 to receive the facsimile line signal from the telephone FAX terminal 20. Command to suspend.

When the telephone line communication procedure control unit 3 receives a command for interrupting the reception process of the facsimile line signal from the telephone FAX terminal 20 from the main control unit 7, the telephone line communication procedure control unit 3 outputs a code indicating that there is a request for the reception process of the facsimile broadcast signal as the interruption process. , And a code for requesting transmission of a telephone number unique to the telephone FAX terminal 20 are transmitted to the telephone FAX terminal 20 via the modem 6 and the NCU 5, respectively.

Then, the telephone number is transmitted from the telephone FAX terminal 20 to the telephone line communication procedure control unit 3 via the NCU 5 and the modem 6, and the telephone line communication procedure control unit 3 receives the telephone number and the telephone line communication procedure control unit 3 receives the telephone number. A storage unit (not shown) provided inside the storage unit 3 stores a telephone number unique to the telephone FAX terminal 20 and a flag indicating that the reception processing of the facsimile line signal is interrupted.

In the telephone line communication procedure control unit 3, the transmitted telephone FA
After storing the telephone number of the X terminal 20 and the flag indicating that the reception processing of the facsimile line signal has been stopped, a DCN signal (line disconnection command signal) is then sent to the telephone FAX terminal via the modem 6 and the NCU 5. Send to 20.

After that, the telephone fax terminal 20 is put in the standby state, the telephone unit 4 is put on the hook, and the telephone line 35 is closed.
The process for receiving the facsimile line signal is interrupted.

When the interruption process of the facsimile line signal reception process is completed, the main control unit 7 causes the facsimile broadcast signal reception control unit to follow the flag indicating that the facsimile broadcast signal reception control unit 1 has requested the reception of the facsimile broadcast signal. The permission for starting the decoding process of the facsimile broadcast signal stored in the facsimile broadcast signal storage unit 2 and requiring the reception process is given to the device 1.

In response to this, the facsimile broadcast signal reception control unit 1 preliminarily receives the message on the receiving side from the newly arriving facsimile broadcast signal different from the facsimile broadcast signal stored in the facsimile broadcast signal storage unit 2 and requiring the receiving process. While confirming whether the program selected by the user's request or the facsimile broadcast signal requiring the reception process that matches the page number arrives, the reception process stored in the facsimile broadcast signal storage unit 2 requires the reception process. Read the facsimile broadcast signal. Then, in order to decode only the facsimile image information among them, it is output to the image information encoding / decoding processing unit 8 via the main control unit 7.

After that, the facsimile broadcast signal required for the reception processing stored in the facsimile broadcast signal storage unit 2 is read out,
Reception processing similar to that described above is performed.

Here, if the facsimile broadcast signal reception control unit 1 is receiving the facsimile broadcast signal that is stored in the facsimile broadcast signal storage unit 2 and needs to be received, the facsimile broadcast signal storage unit 2 stores the received facsimile broadcast signal. If the newly received facsimile-equipped broadcast signal different from the received facsimile-processing-required facsimile-broadcasting-signal is a reception-processing-required facsimile-broadcasting-signal, it is stored in the facsimile broadcasting-signal storage unit 2. The storage processing is continuously performed after the facsimile broadcasting signal requiring the reception processing.

When the reception process of the facsimile broadcast signal stored in the facsimile broadcast signal storage unit 2 is completed, the main control unit 7 instructs the telephone line communication procedure control unit 3 to complete the reception process of the facsimile broadcast signal that needs the reception process. Let us know.

The telephone line communication procedure control unit 3 notified by the main control unit 7 that the reception process of the facsimile broadcast signal requiring the reception process has been completed is stored in the storage means provided in the telephone line communication procedure control unit 3. According to the flag indicating that the reception processing of the facsimile line signal is interrupted, the main control unit 7 is requested to make a setting for the reception processing of the facsimile line signal.

The main control unit 7, which has received a setting request for receiving and processing a facsimile line signal from the telephone line communication procedure control unit 3,
In order to set the entire system so that only the facsimile line signal is received and processed, the facsimile broadcast signal reception control unit 1 is notified that the facsimile line signal is being received.

On the other hand, the telephone line communication procedure control unit 3 that has requested the main control unit 7 to receive a facsimile line signal, then the telephone FAX terminal 20 stored in the telephone line communication procedure control unit 3.
The unique telephone number is output to the telephone unit 4. After that, the telephone unit 4 is instructed to call the telephone FAX terminal 20 to request the transmission of the facsimile line signal.

The telephone unit 4 receiving this command makes a telephone call to the telephone FAX terminal 20 via the NCU 5 according to the telephone number specific to the telephone FAX terminal 20 received from the telephone line communication procedure control unit 3.

Telephone fax terminal 2 for telephone calls from the telephone section 4
When 0 answers and goes off-hook, NCU5
Switch 5 to the modem 6 side to establish a line.

When the line is established, the telephone line communication procedure control unit 3
A code indicating a request for transmitting a facsimile line signal is transmitted to the FAX terminal 20. When the telephone FAX terminal 20 receives the code indicating the transmission request of the facsimile line signal, the facsimile line signal reception process is restarted in accordance with the normal procedure from the subsequent page in which the facsimile line signal reception process is interrupted.

The above communication procedure is the priority processing procedure of the facsimile broadcast signal during the reception processing of the facsimile line signal.

[Effects of the Invention] As described above, in the facsimile-equipped broadcast receiving apparatus of the present invention, when a facsimile broadcast signal that requires reception processing arrives during reception processing of a facsimile line signal, the facsimile broadcast signal is given priority. It is designed to be processed.

According to this, there is no possibility of failing to receive the facsimile broadcast signal even during the process of receiving the facsimile signal from the telephone FAX terminal.

[Brief description of drawings]

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 a facsimile broadcast. 1 ... Facsimile broadcast signal reception control unit 2 ... Facsimile broadcast signal storage unit 3 ... Telephone line communication procedure control unit 4 ... Telephone unit 5 ... NCU 6 ... Modem 7 ... Main control unit 8 ... Image information Encoding / decoding processing unit 9 …… Image information reading / recording processing unit 20 …… Telephone FAX terminal 30 …… Facsimile broadcasting receiver

Claims (1)

[Claims] 1. A facsimile broadcast receiving apparatus provided with a function of receiving and processing a facsimile broadcast signal transmitted multiplexed with a television audio signal and a function of transmitting and receiving a facsimile line signal using a telephone line. When a facsimile broadcast signal that requires reception processing arrives, the facsimile broadcast signal that requires reception processing is temporarily stored until the reception processing of only the page during the reception processing of the facsimile line signal is completed. When the reception processing of the above is completed, the reception processing of the facsimile line signal is interrupted, the reception processing of the above facsimile broadcasting signal is continued, and when the reception processing of the facsimile broadcasting signal is completed, the transmission request of the above facsimile line signal is issued. Facsimile broadcast receiving apparatus characterized in that