JPS62128278A - Facsimile communication system - Google Patents

Abstract

PURPOSE:To easily recognize whether a transmitted picture signal is normally received or not by detecting the degree of a deterioration due to a communication error of the transmitted picture signal and outputting information relating to the communication error of the picture signal from the receiver of the picture signal. CONSTITUTION:The degree of the deterioration due to the communication error of the transmitted picture signal is detected by a discriminating part 3 and according to the discriminating result, the picture signal corresponding properly to the discriminating result is stored in a memory part 4. When an operator inputs an instruction desiring to know the degree of the deterioration of the respective picture information received from an operating part 7, a control part 8 feeds a signal indicating the instruction to a communication management information generating part 5. Thereby, the communication management information generating part 5 reads the discriminating result, feeds the communication management information every communication to a recording part 6 as a communication management recording and the recording part 6 records and outputs the communication management information.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a facsimile communication system that outputs information regarding a communication error on the receiving side of a transmitted image signal.

[Technical background of the invention]

A transmitting device that generally converts image information into an image signal and transmits it;
In a facsimile communication system that includes a receiving device that receives a transmitted image signal and records image information, the image signal transmitted from the transmitting device passes through a transmission path and is received by the receiving device. It is unavoidable that deterioration may occur due to communication errors. Therefore, the receiving device detects the degree of deterioration of the image signal due to communication errors, and if the deterioration due to communication errors exceeds a predetermined value, it sends a command to the transmitting device to reduce the transmission speed and transmit the image signal. was.

[Problems with background technology]

However, even if the transmitting device lowers the speed at which image signals are transmitted, image information whose deterioration due to image signal errors is greater than or equal to a reference value is not retransmitted, but is transmitted starting from the image information of the next page. For example, when sending three pages worth of image information from the transmitting device to the receiving device, if the deterioration of the image signal on the second page due to a communication error exceeds the standard value, the receiving device will send the image information to the transmitting device at the end of the second page. A command is sent to reduce the speed at which image signals are sent to the computer. Then, the transmitting device lowers the speed of transmitting the image signal and transmits the image signal of the third page. However, the deterioration of the image signal on the second page due to the communication error exceeds the standard value, and the sending side does not know that the image signal has deteriorated considerably until the end of the page, and the second page is automatically retransmitted. Therefore, the receiving side cannot obtain normal image information for the second page.

In such a case, the receiving side can find out that there is no image information on the second page by checking the obtained image information one by one, but when the number of image information sent is large, it is difficult to check each page one by one. This is not easy, and there is also the problem that it is difficult to find image information that has not been sent.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to make it possible to easily confirm whether or not a transmitted image signal has been received normally.

[Summary of the invention]

The present invention achieves the above object by detecting the degree of deterioration of a transmitted image signal due to a communication error and outputting information regarding the communication error of the image signal from an image signal receiving device.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a facsimile signal receiving apparatus used in one embodiment of the present invention. 1 is a receiving unit that receives the transmitted image signal; 3 is a determining unit that is an image signal deterioration detection means that detects the degree of deterioration of the received image signal due to a communication error; and 4 is a placement unit that arranges the determination result. , 5 is a communication management information generating section that generates communication management information; 6 is a recording section that records the received image signal as image information and also records and outputs the communication information output from the communication management information generating section 5; 7 is the operation section;
8 is a control section.

The transmitted image signal is detected by the determining section 3 to determine the degree of deterioration of the image signal due to a communication error. Then, the determination result is stored in the storage unit 4 as to which image signal corresponds to which determination result.

For example, when the operator inputs a command from the operation section 7 indicating that he wants to know the degree of deterioration of each piece of image information received, the control section 8 sends a signal indicating this to the communication management information generation section 5. Then, the communication management information generating section 5 reads the determination result from the storage section 4, and sends the communication management information for each communication as a communication management record to the recording section 6 in the form shown in FIG. 2, for example.
records and outputs this communication management information.

Among the communication management records shown in FIG. 2, result 20 indicates that the communication method is C. C. I. T. T. This indicates that the recommended G3 mode and the deterioration of the image signal due to a communication error resulted in omission of image information, that is, a so-called NG has occurred.

In addition, the information recorded on the recording side 21 is the third image information of the image information in which the deterioration due to the communication error of the image signal is not as bad as NG, but it is not in a very good condition.
G indicates that the image information is for the second image, and that a total of 5 images have been transmitted.

In this embodiment, a case has been described in which a communication management record as shown in FIG. 2 is output. Then, the communication management information generating section 5 may print a mark 30 as shown in FIG.

Further, in this embodiment, information regarding the degree of deterioration of the received image signal due to communication errors is output only from the receiving device, but the result determined by the determining section 4 is sent to the transmitting device (not shown), and the receiving device It may also be possible to output information regarding the degree of deterioration due to communication errors in the image signal received from the image signal and the transmitting device, so that the operator on the side that transmitted the image signal can check the reception status at the receiving device. can do.

〔Effect of the invention〕

As detailed above, according to the present invention, the degree of deterioration of a transmitted image signal due to a communication error is detected, and the image signal receiving device outputs information regarding the communication error of the image signal. There is. Therefore, it is possible to easily check whether the transmitted image signal has been received normally.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a facsimile signal receiving device used in an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a communication management record output from the recording unit 6 shown in FIG. FIG. 3 is a diagram showing an example of a communication management record output from the recording section 6 shown in FIG. 1. 1... Transmission section, 3... Discrimination section, 4... Storage section, 5... Communication management information generation section, 6... Recording section, 7... Operation section , 8...control unit.

Claims (3)

[Claims] (1) A transmitting device that converts image information into an image signal and transmits it;
In a facsimile communication system comprising a receiving device that receives the image information and records the image information, the image signal deterioration detection means detects the degree of deterioration of the image signal due to a communication error, and the image signal deterioration detection means 1. A facsimile communication system comprising a receiving device comprising an output means for outputting information regarding a communication error in a detected image signal. (2) The facsimile communication system according to claim (1), wherein the output means is a recording means for recording the degree of deterioration of the image signal due to a communication error as communication management information for each communication. (3) The facsimile communication system according to claim (1), wherein the output means is a recording means for recording the degree of deterioration of the image signal due to a communication error together with image information obtained by converting the image signal. .