JPH01106670A - Method for facsimile communication - Google Patents

Abstract

PURPOSE:To transmit a transmission side original at an arbitrary time with the communications charge of a reception side by transmitting the telephone number of the transmission side in a prescribed procedure to the reception side, interrupting a line once, thereafter, calling the number from the reception side, and receiving the transmission side original with a polling function. CONSTITUTION:First, the telephone number of a transmitter T side is transmitted to a receiver R side by the procedure of a T.30, and the line is interrupted once. Thereafter, a pulse signal corresponding to the T side telephone number is outputted from an automatic dialing equipment 8 of the T side to an NCU 7, and the line is connected. Next, a calling signal is sent from the R side, and a called station identifying signal, a non-standard function identifying signal, the called station identifying signal and a digital identifying signal are sent from the T side, respectively. Next, a non-standard function instructing signal, a calling terminal identifying signal and a digital transmission instructing signal are sent from the R side, a transmission station identifying signal, a digital instructing signal, a training signal and a line checking signal are sent from the T side, a receiving preparation confirming signal is sent from the R side, respectively, thereafter, the picture signal of the first sheet of the original is polling-transmitted, and it is printed out at the R side. When a multipage signal is received, a confirming signal is transmitted, and the second sheet of the original is received.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication method in facsimile.

[Conventional technology]

In normal facsimile communication, a document is sent as a facsimile signal from a transmitting side to a receiving side. Since this communication method naturally incurs communication charges on the sending side, there is a method of using the polling function of the facsimile machine to send the document at the receiving side's communication charges.

The polling function is a function in which the receiving side (calling side) automatically receives a document that has been set in advance on the facsimile machine of the sending side (called side). This function allows the sending side to send documents at the receiving side's communication charges.

[Problem that the invention seeks to solve]

However, with the above method, in order to request polling transmission from the sending side (called side), it is necessary to contact the receiving side (calling side) using a landline telephone in advance. In this case, polling transmission becomes impossible. Additionally, there are some devices that allow polling transmission to be performed at a certain predetermined time even when the operator is absent due to a timer on the receiving side, but it has not been possible to request polling transmission at any time or in an emergency.

Therefore, the present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide a facsimile communication method that allows a sender's document to be sent at any time for the receiver's communication fee.

[Means for solving problems]

In order to achieve the above object, the present invention provides a facsimile communication method equipped with a polling function, in which the telephone number of the sender is transmitted to the receiver using the T.300 procedure, the line is once disconnected, and then the It auto-dials a phone number and uses a polling function to receive the sender's manuscript.

[Effect]

In the present invention, the sending side (called side) requests the receiving side (calling side) to perform polling transmission, and the receiving side automatically polls the document set on the sending side by operating an auto-dial device. Receive.

〔Example〕

A preferred embodiment of the facsimile communication method of the present invention will be described below with reference to the accompanying drawings.

FIG. 3 shows a facsimile machine for implementing the invention.

(1) is a CPU, (2) is a ROM that stores the operating program of this facsimile, (3) is a RAM that stores various data generated as the program progresses, and (4) is an image signal memory consisting of a RAM. It is. (5) is an operation panel for performing various manual operations such as sending/receiving commands, (6) is a modem, and (7) is a network control unit, that is, an NCU;
A modem (6) is connected to the line (9) via U (7).

(8) is an auto-dial device. The auto-dial device (8) loads a dial number (destination phone number) input from the outside into RAM (3), and sends a pulse signal corresponding to the dial number to the NCU. (7) Output to NCU
(7) connects the line by outputting the pulse signal onto the line (9). (10) is a reading device that scans the image data of a document, converts it into a binary electric signal indicating white or black, and outputs it; (11>) is a device that prints out the received image data on recording paper. It is a recording device. (12) (13) (14) (15)
(16) are each an interface.

Normally, at the sending facsimile, that is, the transmitter, the CP
When U (1) detects that a document has been set on the reading device (10), it turns on the main power of the transmitter, manually inputs and transmits the destination dial number from the operation panel (5) or a telephone (not shown). Waiting for command personnel, read the reader (1
0) to start reading the original. Reading device (1
The image signal read by 0) and indicating white or black is converted from serial to parallel by an interface (15), and further converted into a run-length code by the CPU (1) or a known counter circuit (not shown) and stored in the image signal memory. (4). - The image signal once stored is extracted and further converted into MH or MR code by the CPU (1), then converted from parallel to serial by the interface (13), modulated by the modem (6), and sent to the NCU.
(7) onto line (9).

At the receiving side facsimile machine, line (9)
The image signal transmitted above is demodulated by the modem (6) via the NCU (7), converted from serial to parallel by the interface (13), and then temporarily supplied to the RAM (3). At the same time, the image signals in the RAM (3) are sequentially fetched into the CPU (1) and converted from MH code or MR code to run length code.
The image signal is stored in the image signal memory (4). CPU (1
) sequentially captures the image signal of (4) in the image signal memory,
The run length code is converted into an image signal indicating white or black by the CPU (1) or the counter circuit, and then sent to the recording device (11) via the interface (16).
and is printed out on recording paper as a received image.

Next, the operation of the present invention using the above facsimile machine will be explained.

Figures 1a and 1b and Figures 2a and 2b are flowcharts for explaining the operating procedure of this embodiment, and Figure 4 is a transceiver (T) (R
) is an explanatory diagram showing the relationship between communications between the two and communications according to the present invention.

First, a document is set on the reading device (10) of the transmitter (T), a request for polling transmission and the dialed number of the destination are inputted using the operation panel (5), and a handshake is instructed before transmission (step ■). The transmitter (T) sends a calling signal (CNG) (step ■), and the receiver (R) sends a called station identification signal (CED) (step ■) indicating that the line is connected (step ■). and non-standard feature identification signal (NSF) to indicate optional features.
Called station identification signal (C3I) that displays telephone number, etc.
Digital identification signal (DIS) indicating CCITT standard
) are respectively transmitted from the receiver (R) (step ■).

In the transmitter (T), if there is a signal indicating that it has a polling function in the above signal (NSF) (step ■)
, non-standard function setting signal (NS
During S), set a polling transmission request bit (for example, set a specific bit to 1), and send it along with a transmitting station identification signal (TSI) that displays a telephone number, etc. (Step ■) (Step ■) Receiver (R) sent to.

The receiver (R) detects the polling transmission request bit in the signal (NSS) (Step 2), and detects the polling transmission request bit in the signal (T
The telephone number of the transmitter (T) side stored in the SI) is taken in and stored in the RAM (3) (step 2), and a reception preparation confirmation signal (CFR) is sent out (step 0).

When the above handshake procedure is completed, the transmitter (
A line disconnection command (DCN) is sent from T), and the communication is temporarily terminated (step ■) (step 0).

If the receiver (R) does not have a polling function, the transmitter (T) side proceeds from (step ■) to normal transmission (step ■), and the receiver (R) side proceeds to (step ■). The process then proceeds to normal reception (step ■), and normal facsimile transmission is performed.

Once the line is disconnected as described above, the CPU (1) of the receiver (R) retrieves the telephone number of the transmitter (T) stored in the RAM (3), and reads the telephone number of the transmitter (T) from the automatic dialing device (
8), and the auto dial device (8) outputs a pulse signal corresponding to the above telephone number to the NCU (7).

The NCU (7) outputs the pulse signal onto the line (9) and establishes a line connection with the designated destination facsimile (transmitter (T)) (step [Yes]) (step 2).

A calling signal (CNG) is sent from the receiver (R) to the transmitter (T
) is sent a called station identification signal (CED) (step ■), and then a non-standard function identification signal (NSF) - a called station identification signal (C5) - a digital identification signal (DIS)
are sent out from the transmitter (T) (step ■).

Next, a non-standard function command signal (NSC) is sent from the receiver (R).
・Calling terminal identification signal (CIG) ・Digital transmission command signal (DTC) of transmission request is sent (step ■) (step ■).

Transmitting station identification signal (TSI)/CCIT from the transmitter (R)
Digital command signal (DC5) that displays T standard
The training signal and line check signal (TCP) are sent (step ■), and the receiver (R) sends the reception preparation confirmation signal (
CFR) are transmitted (step @), the image signal of the first document is transmitted by polling (step @) (step ■). In the receiver (R), the image signal is printed out on recording paper as a received image (step [phase])
. When the first image signal is transmitted, the transmitter (T)
An image signal end signal (RTC) is sent from the transmitter (T), and then a multi-page signal (MPS) is sent from the transmitter (T) when there are multiple originals (step 0). A message confirmation signal (MCF) is sent, and then image signal communication for the second original is performed.

When the transmission of the image signal is completed, the transmitter (T) issues a procedure end signal (EOP) (step ■) (step @), and the receiver (R) issues a message confirmation signal (MCF).
), a line disconnection command (DCN) is sent from the transmitter (T) (step ■), and all communications are completed (step ■).

In this way, according to the above embodiment, when transmitting a document from the transmitter (T> side to the receiver (R) side, the communication fee is only for communication (handshake procedure) of the first polling transmission request). ) side, the receiver (R) side will be responsible for the communication charges when transmitting the original, and the transmitter (T) side can save on communication charges.
T) side at any time or in an emergency, and the receiver (R
) even if there is no operator on the transmitter (T
) The polling transmission can be performed immediately by operation on the side, which is efficient.

In addition, in polling transmission, an rD code etc. is provided on the reservation transmitter (T) side and the receiver (R) side to prevent information theft from a third party on the transmitting side, and on the receiving side to prevent the theft of information from a third party. By performing communication control such as rejecting unnecessary polling requests from third parties, facsimile data communication can be made even more reliable.

〔Effect of the invention〕

As explained in detail above, according to the present invention, the sending side can perform polling transmission immediately at any time or in an emergency, even if there is no operator on the receiving side, and the receiving side pays the communication fee for sending the original. This allows the sending side to save on communication charges.

[Brief explanation of the drawing]

1a and 1b are flowcharts showing the operating procedure of the transmitter, FIGS. 2a and 2b are flowcharts showing the operating procedure of the receiver, and FIG. 3 is a block diagram of a facsimile machine implementing the present invention. FIG. 4 is a diagram schematically explaining a communication procedure between a facsimile transmitter and receiver. (1) -CPU, (3) -RAM. (8) Auto dial device, (T) transmitter, (R) receiver. Figure 3

Claims (1)

[Claims] This is a facsimile communication method equipped with a polling function, in which the telephone number of the sender is sent to T. The facsimile communication method is characterized in that after the facsimile transmission is sent to the receiving side according to the procedure of step 30 and the line is once disconnected, the receiving side automatically dials the above-mentioned telephone number and receives the original from the sending side using a polling function.