JPS60182267A - Facsimile communication system - Google Patents

Abstract

PURPOSE:To realize a collect call service by allowing a device to be called to connect a line and transmit a picture signal after the line is disconnected by call request information of a caller devce. CONSTITUTION:When an automatic transmission/reception control section 14 reads a destination telephone number from an automatic transmission/reception storage section 16 through the indication of a control section 1 and gives an indication to an automatic dial section 15, the dial section 15 generates a dial tone and makes a call through a line control section 13. Then an exchange station selects a terminal device B by using the dial tone, transmits a call signal to a destination, the line between the terminals A and B is connected from the response from the terminal device B and the time supervision is started. After the connection of line is confirmed, a binary signal is transmitted/received between both the terminal devices A and B, and the state such as a terminal device or a transfer line is confirmed. Then the terminal device A receives collect call information to the terminal device B stored in the storage section 16, the collect call is confirmed, the line is disconnected and a call is given to the terminal device A, the terminal device A disconnects the line and waits for the call from the terminal device B.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a facsimile communication system in which a called facsimile device transmits both signals.

(bl Technology background) Korefke Call is one of the communication services that uses switched lines.In this service, a telephone office operator confirms with the other party by voice whether or not they are willing to pay the charges.
The line will be connected after confirmation. That is, the receiving side handles the call as equivalent to making a call for line connection. There is also a demand for collect calls in facsimile communications using switched lines, but in recent years automatic reception methods have become popular, in which the line is connected when a call is made from the side transmitting the image signal, and the facsimile device automatically switches to receive the signal. and cannot receive collect call service. Therefore, it is desired to develop a facsimile communication system that allows calls.

(C1 Purpose of the Invention The purpose of the present invention is to provide a facsimile communication system that allows collect calls.

(d) Structure of the Invention The above object is to enable a subscriber receiving a collect call to set a specific code information @ (hereinafter abbreviated as password), and receive the password sent by the person sending the picture message. This can be achieved by providing a facsimile communication system in which the telephone line is temporarily disconnected after the receiving side receives and confirms the received image signal, and the sending side is called again to request transmission of the image signal.

(e) Embodiments of the Invention An embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing an example of the configuration of a facsimile machine for implementing this communication method, and FIG. 3 is a flowchart showing the operation of this embodiment. be.

In FIG. F(a), reference numeral 21 denotes a facsimile device (hereinafter abbreviated as terminal A) that transmits image signals.

Reference numeral 22 denotes an exchange that receives dial pulses from the calling terminal, establishes a calling line for the called terminal, monitors the time from connection to disconnection of the line, and charges the calling terminal. 23 is an example of a facsimile machine (hereinafter referred to as terminal B) that receives an image signal from terminal A by a collect call. FIG. It shows the communication sequence until the end of the picture transfer, 24 is the sequence in which a call is made from terminal A to terminal B, 25 is A, 8 both terminals are terminals, the state of the transmission path etc. is B (
In this sequence, terminal A transmits a password, its own telephone number, etc. (hereinafter abbreviated as call information to Cholera 1) to terminal B. Terminal B compares the received information with the already registered information for each destination, and if they match, it temporarily disconnects the telephone line and then calls terminal A in sequence 26. In sequence 27, terminal B delegates the transmission right to terminal A using a password etc.
The terminal transmits the image signal in sequence 28.

Next, the operation of the facsimile machine in this communication system will be explained. FIG. 2 shows an example of a device capable of both originating and receiving collect calls. In Fig. 2, 1 is a control unit that controls each functional part by a program stored in a storage unit 10, like a microcomputer, and 2 is a control unit in which the original to be sent electronically or collect call information and information necessary for automatic transmission and reception are entered. 3 is a fluorescent lamp, 4 is a condensing lens, and 5 is an image sensor.

6 is an image information storage unit that temporarily stores the image signal of the scanned original and the received image signal; 7 is an image information storage unit that selects whether the input is an OMR sheet or an original, and when it is an OMR sheet, identifies code information such as a password and automatically transmits and receives the image signal. 8 is a recording processing unit that reproduces and records both received signals; 9 is a password; 11 is a key human power unit that inputs information necessary for automatic transmission and reception; 11 is a communication control unit that organizes information into a specified format and communicates according to transmission procedures;
12 is a modulation/demodulation unit, 13 is a line control unit that switches circuits according to the signal system to be transmitted and received, 14 is an automatic transmission/reception control unit for automatic transmission and reception, and 15 is an automatic transmission/reception control unit for optical telephone numbers entered on an OMR sheet or key manually. An automatic dialing section generates a dial tone or a PB double signal according to instructions from the section 14 and sends it out through the line control section 13, and a collect section 17 stores the destination password, telephone number, etc.
The call information storage unit 18 is a comparison unit that compares and references the received destination password with the password in the collect call information storage unit to detect a match.

Figure 2 shows the operation of terminal A, which sends out image signals.

This will be explained using FIG. First, the document to be sent electronically is set in a predetermined position, and the recipient's telephone number, password, etc. are entered manually using the keys or using an OMR sheet.

In the case of an OMR sheet, the OMR sheet is placed at the beginning of the document and is read first. The fluorescent lamp 3 illuminates the sheet, and the reflected light beam is input to the image sensor 5 through the condenser lens 4, and an image signal for one illuminated line is input to the reading control section 7. The reading control unit 7 identifies the OMR sheet, discriminates the signal by information, and automatically transmits and receives the memory unit 1.
6 is temporarily stored. After the above procedure is performed, the automatic transmission/reception control section 14 reads out the telephone number of the other party from the automatic transmission/reception storage section 16 according to instructions from the control section 1, and then reads out the telephone number of the other party from the automatic transmission/reception storage section 16, and
When instructed to do so, the automatic dial section 15 generates a dial-1-- or PB double signal and makes a call through the line control section 13. Using this dial tone, the exchange selects terminal B and sends a calling signal to the other party, and in response to a response from the BI'71ii terminal, connects the line between terminal A and terminal B and begins time monitoring. .

After the line connection is confirmed, terminals A and B exchange binary code signals with each other to check the status of the terminals, transfer path, etc. In this sequence, terminal A uses the automatic transmission/reception storage unit 1.
The collect call information for terminal B stored in
Transmit according to the procedure.

Here, terminal B receives the collect call information, confirms the collect call, disconnects the line, and immediately calls terminal A. Terminal A assumes that the collect call has been accepted because Terminal B disconnects the line, and disconnects the line.
Wait for a call from the terminal.

If the B terminal does not disconnect the line, it retransmits the information again after a certain period of time, and if there is no disconnection as a result, it disconnects itself and performs processing such as restarting. It is more reliable if terminal B sends its own password to terminal A in advance in the status confirmation sequence 24, and after terminal A confirms this, terminal A sends collect call information. Next, terminal B, which called terminal A, transmits the password to terminal A and transfers the transmission right. After terminal A identifies this signal, it switches the reading control unit 7 to read the document and electronically transmits both signals. The document is fed at a constant speed, illuminated by a fluorescent lamp 3, read line by line by an image sensor, decomposed into predetermined signals, and stored in an image information storage section 6.

Furthermore, the code is exchanged for band compression and the communication control unit 11. The signal is sent out through the variable opening section 12 and the line control section 13. When the transmission of a predetermined document is completed, terminal A disconnects the line, and then terminal B disconnects the line, thereby ending the process.

Next, the operation of terminal B will be explained using FIGS. 2 and 3.

When the line is connected by a call from terminal A, collect call information is sent from terminal A, which is received and compared with the collect call information for each destination stored in the collect call information storage unit 17. and confirm the other party. When it is confirmed that the information matches, terminal B disconnects the line, confirms that terminal A disconnects the line, and then calls terminal A. When the line is reconnected and connected to the facsimile machine, terminal B sends code information and delegates the transmission right to terminal A. Terminal A starts transmitting the image signal according to the procedure already described, but terminal B receives this image signal, temporarily stores it in the image information storage section 6, and prints out this image signal using the recording processing section 8. and play the original.

According to the above explanation, terminal A can activate terminal B and transmit a document by making a call from terminal B. The exchange monitors the time it takes to connect and disconnect the line and charges the calling party.

The time required for a collect call from terminal A is approximately 10 seconds at most, which is approximately 10 seconds per page compared to the time required to electronically transmit a manuscript.
It is sufficiently small compared to several seconds to several minutes that it is possible to receive a service equivalent to a voice collect call.

Note that the communication control unit 11. Automatic transmission/reception control section 14° comparison section 1
8 can be included in the control section 1. Also, the image information storage section 6. Automatic transmission/reception storage section 16. Correct 1--The call information storage section 17 can be included in the storage section 10.

(fl) Effects of the Invention As described in the embodiments, the original can be automatically sent electronically by a call from the recipient of the original, so a collect call service can be realized.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of a facsimile machine implementing the present invention,
FIG. 3 is a flowchart showing the operation of this embodiment. 6... Image information storage unit 7... Reading processing unit 14... Automatic transmission/reception control unit 15... Automatic dialing unit 16... Automatic transmission/reception storage unit 17... Collect... Call information storage unit 0 Lu Mi Guqing F

Claims (1)

[Claims] A facsimile communication method in which image signals are transmitted and received between a calling device and a called device using a switched line, and the first method requests the calling device to make a call from the called device. A means for transmitting call request information and a means for receiving and identifying response information to the call request transmitted by the called device are provided, and the device is registered in advance in the called device based on the received call request information. means for identifying that the call request is from a previously registered calling device;
After the line is disconnected, a means is provided to connect the line and transmit response information, and after the line is disconnected based on the call request information of the calling side device, the called side device connects the line and transmits the image signal. A facsimile communication method characterized by