JPS62232262A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To attain sure transmission by printing a received image signal, sorting it in a memory section, allowing a device on the incoming side to resend the image signal received again to an outgoing side as it is after the end of image signal reception and allowing the outgoing side to record it. CONSTITUTION:The outgoing side sends a procedure signal first to inform the start of communication to the incoming side, the incoming side returns an answer signal, after the outgoing side receives it, the outgoing side sends the image signal being the result of original reading, the incoming side receives the image signal and prints it and stores the image signal in the memory section 4. In completing the sending of the image signal, the outgoing side sends an end signal to complete the transmission operation and is transited to the reception operation. When the incoming side receives the end signal conversely, the reception operation is transited into the transmission operation, a procedure signal is sent, the outgoing side returns an amuser signal, the incoming side resends the image signal stored in the memory section 4 to the outgoing side, the outgoing side receives it, demodulates it and prints it. Thus, whether or not the information is sent surely is discriminated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a facsimile device, and particularly relates to a facsimile device that is connected to a line such as a subscriber telephone network that may be subject to errors due to noise during a communication path. .

Conventionally, in this type of facsimile machine, as shown in Fig. 3, the calling side sends out a hand signal, the called side returns a response signal, and then the calling side sends out an image signal. do. The receiving side receives this sent image signal and prints it on recording paper using a printing unit. After the transmitting side has sent all the image signals, it sends out a termination signal and ends the communication.

Problems to be Solved by the Invention In conventional facsimile machines, since the transmission image signal is unilaterally sent to the sending information, if noise is received in the middle of the communication path, the receiving side will record the reception record lIMII/c error. Even if a message occurs, there is no way to check the extent of the impact, so if the sender sends a document that costs a fee, it is difficult to know whether it has been transmitted to the receiver. The drawback was that it couldn't be done.

The present invention has been made in view of the above-mentioned conventional IC situation, and therefore, an object of the present invention is to provide a new facsimile apparatus which makes it possible to eliminate the above-mentioned drawbacks inherent in the conventional technology.

Means for Solving the Problems In order to achieve the above object, a facsimile apparatus according to the present invention includes a reading section that reads a document and converts it into an image signal, a recording section that prints the received image signal on recording paper, a modulation section that performs the modulation necessary to send the image signal to the line; a demodulation section that demodulates the signal received from the line; a memory section that temporarily stores the transmitted image signal; a switch unit that switches between sending back the image signal read from the document by the reading unit or sending out the image signal read from the document by the reading unit, a control unit that controls the switch unit and the memory unit, and a network control unit that controls the line. It is composed of:

Embodiment Next, a preferred embodiment of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

At the time of transmission, the original is optically read by the reading section 1 and converted into an appropriate electrical signal. The image signal processing section 3 processes this electrical signal into a form suitable for facsimile communication and outputs it as an image signal. At this time, the switch unit 6 is set to connect the image signal processing unit 3 and the modulation unit 7, and the image signal output from the image signal processing unit 3 is transmitted in accordance with the band of the line used in the modulation unit 7. The signal is converted into a modulated signal, passed through the network control section 9, and sent out to the line. Generally, the modulated signal is subjected to various noises on the line and reaches the facsimile machine m on the receiving side in a state containing errors.

At the time of reception, the modulated signal received from the line is passed through the network control section 9, demodulated by the demodulation section 8, and converted into an image signal.

The demodulated image signal is sent to the image signal processing unit 3, where it is converted into image data r suitable for recording, and printed out in the recording unit 2. At the same time, the image signal is temporarily stored in the memory unit 4, and then transmitted. The storage continues until the image signal sent from the side is completed. After the image signal transmission is completed, the image signal output from the memory section 4 is sent to the modulation s7 through the switch section 6. At this time, the switch section 6 The memory section 4 and the modulation section 7 are set to be connected according to instructions from the control section 5 .

The image signal from the memory section 4 is converted into a modulated signal by the modulation section 7, and sent out again to the line via the network control section 9. This time, it is received by the transmitting side and printed by the recording section 2 of the transmitting side device.

If the signal sent from the calling side suffers from an error on the line, the signal will be retransmitted as is from the called side, so the operator on the calling side will see it as a printed record. I can do it.

Next, the communication procedure at this time is shown in FIG.

First, send a procedure signal to inform the called party that communication will begin. In response, a response signal is returned for the incoming call. After receiving this, the sending side sends out an image signal obtained by reading the original. When the incoming call 9N4 receives and prints an image signal, it simultaneously stores one signal in the VC memory section 4.

When the sending of the image signal is completed, the transmitter 111j sends out a termination signal, ends the sending operation, and moves on to the receiving operation yc. Inverted V (When the receiving side receives the end signal, it shifts from the receiving operation to the transmitting operation and sends out a procedure signal.The calling side returns a response signal, and the called side receives the image stored in the memory section 4vζ. The signal is retransmitted to the originating side 1C.

The sending side receives this in the same way as normal receiving operations, demodulates it, and prints it out. When the receiving side finishes retransmitting the image signal, it sends out a termination signal to the sending side and finishes all operations. do.

As described in detail, according to the present invention, when the received image signal is printed out, the Vζ memory unit l(- is stored and
After receiving the image signal, the device on the receiving side resends the received image signal as is to the calling side, and the sending side records this, so if an error occurs due to noise on the line. Even if it appears in the recipient's reception record, the operator on the sending side can confirm for himself how the document he sent was transmitted to the other party.
Mr. Hao, when sending important messages, the other party V (rc) can determine whether or not the information has been reliably transmitted.

[Brief explanation of drawings]

Figure 1 is a block diagram showing one embodiment of the present invention;
The figure shows the communication procedure of the present invention, and Figure 3 shows the conventional device 1.
FIG. 3 is a diagram showing the communication procedure. l...reading section, 2...recording section, 3...image signal processing section, 4...memory section, 5...writing control section, 6. switch section, 7...modulation section , 8... Demodulation section, 9...-Network control section

Claims (1)

[Claims] A reading section reads the original and converts it into an image signal, a recording section prints the received image signal on recording paper, a modulation section performs the necessary modulation to send the image signal to the line, and a modulation section that converts the signal received from the line. A demodulating section that demodulates, a memory section that temporarily stores the transmitted image signal, and whether the image signal stored in the memory section is sent back or the image signal obtained by reading the original by the reading section is sent out. 1. A facsimile apparatus comprising: a switch section that switches between the two; a control section that controls the switch section and the memory section; and a network control section that controls a line.