JPH03182167A - Facsimile equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a facsimile apparatus that deals with a transmission error that occurs during transmission of image data.

Conventional technology Conventionally, there are facsimile machines that store image data to be transmitted in a storage medium, determine whether or not the image data has been transmitted correctly, and if not, resend the same image data again. Ta.

To be more specific, image data for one page of a document is divided into several blocks from a storage medium storing image data to be transmitted, and the data is transmitted in units of blocks. Every time the transmission of one block is completed, a signal to that effect is sent to the destination, and the sending side returns a signal indicating whether the transmission was accurate or an error occurred. This signal is analyzed and if it is normal, the next block is sent, but if an error occurs, the block is sent again at a lower transfer rate, or the communication line is closed at the moment the error occurs. I turned it off and stopped sending.

Problem to be Solved by the Invention However, in this case, when a communication error occurs, an attempt is made to retransmit that part again, but if the communication error is due to an abnormality in the communication line due to interference, no matter how many times the line is retransmitted, Unfortunately, the image data that should be sent may not be sent properly and the image data may not be sent properly.

Moreover, for this reason, procedures such as dial operation for transmitting image data had to be performed again.

Means for Solving the Problem In order to solve this problem, the present invention disconnects the transmission line once an error is detected during image data transmission, restarts the dialing means after a predetermined period of time, and stores data in the storage means. A control means for sending out the stored image data is provided.

Effect: With this configuration, if an error occurs during transmission, instead of retransmitting on the connected line, the negative end transmission line is cut off and dialing is performed again.

Embodiment Below, a facsimile machine according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the configuration of the main parts of a facsimile machine in one embodiment of the present invention.

In FIG. 1, 1 is an incoming call detecting means for detecting a bell signal coming from a line, 2 is a line closing and releasing means for closing and releasing a telephone line, 3 is a dialing means for calling a telephone number, and 4 is a dialing means for calling a telephone number. A modem unit that modulates and demodulates data and transmits and receives signals; 6 a scanner unit that reads images of documents; 6 a storage unit that stores compressed image data; 7 a dial storage unit that stores the telephone number from which the call was made; 8 is an input section for setting whether or not to retransmit if the transmission is not successful, 9 is a control section that controls the entire device, and 1o is a part of a timer built into the control section 9. .

The control section 9 also includes a program storage area for storing control programs according to the flowcharts shown in FIGS. 2 and 3.

Further, FIGS. 2, 3, and 4 are flowcharts showing the operation of this apparatus.

The operation of the facsimile machine that has been accessed as described above will be explained below.

In advance, use the input unit 8 to set whether or not to retransmit when an error transmission is made (STEPl).

Scanner unit 5 reads the image of the transmitted document (STE
P2), and store the image data in the storage means 6 (ST
EPa). Thereafter, the line connection/release means 2 is brought into the closed state through the output terminal P2 (5TEP4), and the output terminal P
3 using the dialing means 3 (ST
EPs). Also, input the telephone number that made the call to the input/output terminal P.
7, it is stored in the dial storage means 7 (STEPe).

The control means 9 determines communication conditions with the receiving side using the modem section 4 (5T)CPy), reads out the image data stored in the storage means 6 (5TEPs), and transmits the data (STEPe). After sending data for one page of the original, the receiving side checks whether the data was sent correctly or not.
(STEPlo). If there is image data to be transmitted, repeat steps 5TEP7 and υ again until the final manuscript data is transmitted (STEPll). After all data has been sent,
The line connection/release means 2 is brought into a closed state through the output terminal P2 (STEP12). If all the original data has been sent normally, the process ends; if not (STEP 13), the process ends if the resending condition is not met, and if it is set to resend (STEP 14), The control means 9 sets an internal timer and starts counting (
STEP 16). Monitor whether the timer has counted up (5TEP1s), and if so, put the line connection/release means 2 into the closed state through the output terminal P2 (5TEP1s).
7) Read out the telephone number stored in the dial storage means 7 through the input/output terminal P7 (STICPlg),
The telephone number is dialed by the dialing means 3 using the output terminal P3 (STEPle). The control means 9 uses the modem section 4 to determine communication conditions with the receiving side.5TEP
20) Read out only the original image data accumulated in the storage means 6 that caused a transmission error (5TEP21)
, transmits the data (87EP22). Manuscript 1
After data transmission for a page is completed, the receiving side receives information on whether or not the data was transmitted correctly through the modem section 4 (5TEP).
23). If all the original data of the error transmission has not been sent, repeat 5TEP20, and if it has been completed (ST
EP24) Determine whether this retransmission has been attempted the specified number of times.5
TEP25), if so, the line connection/release means 3 is brought into the closed state through the output terminal P2, and 5TEP26) ends. If not, it is repeatedly tried from 5TEP12 to be able to send all documents correctly.

Effects of the Invention As described above, the present invention automatically dials a telephone number after a certain period of time when it is determined that there is a manuscript that could not be received normally on the receiving side in the communication. , it is possible to retransmit image data of a document that could not be transmitted normally in the previous communication, and this has a great practical effect.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of main parts of a facsimile machine in an embodiment of the present invention, and FIG. FIGS. 3 and 4 are flowcharts showing the control procedure of the facsimile machine of this embodiment. 1... Incoming call detection means, 2... Line closing/release means, 3... Dial calling means, 4...
...Modem part, 5...Scanner part, 6...
...Storage means, 7...Dial storage means, 8
...Input section, 9...Control means, 1゜・
·····timer

Claims (1)

[Scope of Claims] Image reading means for reading images of a document one by one; storage means for storing image data of the document read by the image reading means; and a dial signal corresponding to telephone number data of a destination. dialing means for transmitting image data; transmitting means for transmitting the image data stored in the storage means to a destination communicated by the dialing means; A facsimile apparatus comprising: control means for disconnecting a line, activating the dialing means after a predetermined time, and causing the image data stored in the storage means to be transmitted again from the transmitting means.