JPH03213045A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent repetition of redialing to an inadequate destination for many number of times by invalidating a redial function when a destination is discriminated as one other than a facsimile equipment and outputting a message confirming an inputted telephone number. CONSTITUTION:When a destination replying with a call is other than a facsimile equipment and a time expires, a changeover circuit 21 is connected to a normally closed contact and a line is interrupted and a guidance message to inform the production of a communication error is displayed on a liquid crystal display device 6f. Then the telephone number inputted at that time is erased and the entry of a redial key 6d is set ineffectively. Thus, even when the redial key 6d is set, the dialing to same destination is not implemented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine equipped with a redial function for dialing an input telephone number again with a single key operation.

[Prior Art] Generally, facsimile machines are equipped with a re-calling function that repeatedly calls the same destination as instructed by an operator until the destination responds.

You can also call the destination you just called with a single key operation.
Facsimile machines equipped with a redial function for making a call again are also in practical use.

By using this redial function, you can call a destination that has not responded even after repeated calls up to a predetermined number of times.
Since a call can be made again with just one key operation, dialing to the same destination can be omitted when the destination facsimile machine is busy for a long time, which is very convenient.

[Problems to be Solved by the Invention] However, when using such a redial function, the following problems have conventionally occurred.

In other words, if the initially entered phone number is incorrect and the destination is a phone terminal, and the destination is away, the image information will not be transmitted to the intended destination unless the user notices that the phone number is incorrect. I can't do it for a long time.

Also, if the recipient is at home and you answer the call, the calling terminal cannot receive the specified facsimile signal.
This will result in a communication error, but if the operator does not notice a mistake in the number, the same destination may be dialed by helicopter.In this case, the destination will be inconvenienced, and image information will not be transmitted to the intended destination. This causes an inconvenience.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a facsimile machine that can perform appropriate calling operations.

[Means for Solving the Problems] The present invention is provided with polar reversal detection means for detecting polarity reversal of a line network, and when a call is made, the polar reversal detection means detects polar reversal and cannot detect a predetermined facsimile signal. In such cases, the redial function is disabled and a message is output to confirm the entered telephone number.

The system is further equipped with a tone detection means for detecting the busy tone of the line network, and when both the polarity detection means and the tone detection means do not detect when a call is made, the redial function is disabled and the input telephone number is It outputs a message for confirmation.

[If the phone number entered is incorrect,
If a call is made from a device other than a facsimile machine, the redial function is prohibited and a message is output to confirm the telephone number, thereby preventing repeated re-calls to inappropriate destinations. The operator is
You can recognize that the phone number you used was inappropriate.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a Group 3 facsimile machine according to one embodiment of the present invention.

In the figure, a control unit 1 performs control processing of each part of the facsimile machine and facsimile transmission control procedure processing, and a system memory 2 stores control processing programs and processing programs executed by the control unit 1. The parameter memory 3 is used to store various data necessary for executing the program, and also constitutes the work area of the control section 1.
This is for storing various information specific to this Group 3 facsimile device, such as registration information.

The scanner 4 is for reading original images at a predetermined resolution, the plotter 5 is for recording and outputting images at a predetermined resolution, and the operation display section 6 is for operating the facsimile device. It consists of various operation keys and various displays.

The encoding/decoding unit 7 encodes and compresses the image signal and decodes the encoded and compressed image information into the original image signal, and the image storage device 8 encodes and compresses the encoded and compressed image information. This is for storing a large amount of image information in a different state.

The group 3 facsimile modem 9 is for realizing the group 3 facsimile modem function, and has a low-speed modem function (V, 2) for exchanging transmission procedure signals.
1 modem), and high-speed modem function mainly for exchanging image information (V, 29 modem, V, 27te
r modem).

The network control device 10 is for connecting this facsimile device to the public telephone line network, and has an automatic call originating and receiving function.

These control unit 1, system memory 2, parameter memory 3, scanner 4, plotter 5, operation display unit 6, encoding/decoding unit 7, image storage device 8, group 3 facsimile modem 9, and network control device ! 10 is connected to a system bus 11, and data exchange between these elements is mainly performed via this system bus 11.

Further, data is exchanged directly between the network control device 10 and the group 3 facsimile modem 9.

FIG. 2 shows an example of the operation display section 6. As shown in FIG.

In the figure, a start key 68 is used to input a command to start the transmission/reception operation of this group 3 facsimile machine, and a stop key 6b is used to input a command to stop the operation of this group 3 facsimile machine. The numeric keypad 6c is used to input numerical information such as a telephone number.

The redial key 6d is for inputting a command to execute a redial function to call the destination of the phone number that was input immediately before, and the one-touch dial key 6e is for
This is to realize a one-touch dial function that allows you to specify one destination with just one key operation.

The liquid crystal display 6f is for displaying and outputting various guidance messages from this group 3 facsimile device to the operator, and the YES key 6g is for displaying a positive message to the guidance message displayed on the liquid crystal display 6f. The NO key 6h is used to input a negative answer to the guidance message.

FIG. 3 shows an example of the network control device 10.

The telephone line is connected to a common terminal 21ac of one switching circuit 21a of two switching circuits 21 that are linked together, and
It is connected to the common terminal 21bc of the other switching circuit 21b, and the normally open contact 21aa of the switching circuit 21a is connected to one end of the primary winding of the transformer 22 for line closing. The open contact 21ba is connected to the other end of the primary winding of the transformer 22 via a contact of a dial pulse generating relay 23 which is output as a selection signal. In addition, the normally closed contacts 21a of the switching circuits 21a and 21b
b and 21bb are each connected to a telephone.

The operation of this switching circuit 21 is controlled by a control signal SCI output from the control section 1, and the operation of the relay 23 is controlled by a control signal SC2 output from the control section 1.

The secondary winding of the transformer 22 is connected to the 2-wire side connection end of the 2-wire/74-wire converter 24, and is connected to the 2-wire side connection end of the 2-wire/411-wire converter 2.
Among the four-wire side connection ends of 4, the signal at the received signal output end is applied to the received signal input end of the group 3 facsimile modem 9 and the input end of the tone detection circuit 25.

Of the four-wire side connection ends of the two-wire/four-wire converter 24, the transmission signal of the group 3 facsimile modem 9 and the output signal of the button signal generation circuit 26 are applied to the transmission signal input terminal. There is.

The tone detection circuit 25 detects various tone signals output from the connected telephone line exchanger, such as busy tone and ringback tone, and the detection signal S1 is sent to the control unit. 1 is output.

The button signal generation circuit 26 generates a button signal used as a selection signal, and its operation is controlled by the control signal S2 output from the control section 1.

The polarity reversal detection circuit 27 detects that the polarity of the current circuit of the connected telephone line has been reversed.
The detection signal S3 is output to the control section 1.

With the above configuration, the control section 1 executes the process shown in FIG. 4 when a transmission document is set on the scanner 4 and a destination telephone number is inputted using the numeric keypad 6c or the one-touch dial key 6e.

That is, first, while turning on the relay 23.

The switching circuit 21 is switched to the normally open contact side, and with the line closed by the transformer 22, a designated telephone number is dialed (process 101).

At this time, if the connected line uses a dial pulse as a selection signal, the relay 23 is turned on and off to generate dial pulses corresponding to each digit of the telephone number in sequence, and the button is used as a selection signal. When using a button signal, the numerical data of each digit of the telephone number is transferred to the push button signal generation circuit 26 at regular intervals to generate a selection signal.

In this way, when a call is made to the destination, it is monitored whether the destination responds to the call and the detection signal S3 is output from the polarity reversal detection circuit 27 before a certain period of time has elapsed (No in judgments 102 and 103). loop),.

If the destination does not respond to the incoming call and the result of judgment 103 is YES, the switching circuit 21 is switched to the normally closed contact side and the line is disconnected (104), and the number of re-calls RC is greater than the specified value. (Judgment) 05).

When the result of judgment 105 is NO, the number of re-calls R
Increase the value of C by one (process 106), wait for a predetermined re-call interval time (process 107), and return to process 101.
Make a call to the same destination again.

Also, if the number of re-calls reaches the specified value, judgment 105 is made.
When the result is YES, this process is ended with the destination telephone number input at that time being stored as the destination telephone number for the redial key 6d. In this case, when the redial key 6d is turned on, the operations starting from process 101 are executed again.

Further, when the destination responds to the incoming call and the polarity is reversed and the result of judgment 102 becomes YES, it is monitored whether a predetermined facsimile signal is detected within a certain period of time (No of judgments 108 and 109). loop).

If the destination that answered the incoming call is a facsimile machine and a predetermined facsimile signal is detected, the result of judgment 108 is YES.
When this happens, the process shifts to a predetermined group 3 facsimile transmission procedure process to execute image information transmission with the destination.

If the destination that answered the incoming call is other than a facsimile machine and the result of judgment 109 is YES due to timeout, the switching circuit 21 is switched to the normally closed contact side to disconnect the line and notify that a communication error has occurred. The guidance message for the purpose is displayed on the liquid crystal display 6f (
Process 110).

Then, the telephone number input at that time is deleted and the input of the redial key 6d is set to an invalid state (
Process 111), for example, ``The destination is not a facsimile machine. Please check the phone number.

” is displayed on the LCD display 6f, and an image of the error report with the same content is recorded and output from the plotter 5 (processing 1).
12), this process ends.

Therefore, in this case, even if the redial key 6d is turned on, a call operation to the same destination is not performed.

In this way, in this embodiment, if the destination of the telephone number entered by the operator is busy and does not answer the incoming call, after a certain period of time has elapsed, the - star line is disconnected and then the telephone number is called again. Make a call to the same destination. If the call is not answered even after repeated calls up to the predetermined number of times,
The re-call operation is completed with the function of the redial key 6d set to valid.

Therefore, in this case, when the redial key 6d is turned on, the call operation to the same destination is performed again.

Further, if the destination is a facsimile device and a facsimile signal is sent in response to the incoming call, then a predetermined group 3 facsimile transmission procedure is executed to perform an image information transmission operation with the destination.

In addition, if the destination is a device other than a facsimile machine and the incoming call is answered but no facsimile signal is sent, the line will be disconnected and a communication error will be displayed, and the redial key 6d will be disconnected.
Set the input to invalid state and output a guidance message for confirming the phone number.

Therefore, in this case, the operator is prompted to confirm the telephone number, and since calls cannot be made to the same destination using the redial key 6d, successive re-call operations to inappropriate destinations can be prohibited.

FIG. 5 shows another example of the process when making a call.

In this case, first, similarly to the process described above, the tone detection circuit 25 detects a busy tone by dialing and calling the input destination (201). , or monitor whether the polarity reversal detection circuit 27 detects polarity reversal (judgments 202, 203, 20
4 No loop).

5 judgment 2 when no busy tone or polarity reversal is detected within a certain period of time
When the result of step 04 is YES, the switching circuit 21 is switched to the normally closed contact side and the line is disconnected (205), the same telephone number confirmation message as above is displayed on the liquid crystal display 6f, and the same message is displayed. A content error report is recorded and outputted from the plotter 5 (process 206), and the redial key 6d is set to an input invalid state in the same manner as described above (process 207), and this process ends.

In addition, when a busy tone is detected and the result of judgment 202 is YES, one line is disconnected (208), and the number of re-calls R
Check whether C exceeds the specified value (judgment 209), and if the result of determination 209 is No, the number of re-calls RC
The value of is incremented by one (process 210), a predetermined re-call interval time is waited for (process 211), and the process returns to process 201 to make a call to the same destination again.

Further, when the result of the determination 209 is YES, this process is ended while the input of the redial key 6d is set to the valid state.

Further, when the destination responds to the incoming call and the polarity is reversed and the result of judgment 203 becomes YES, it is necessary to monitor whether the facsimile signal can be detected within a certain period of time (No loop of judgment 212.213), judgment 212 The result is Y
When it becomes ES, the process shifts to a predetermined group 3 facsimile transmission procedure process, and an image information transmission operation is executed with the destination.

Further, when the destination answers the incoming call but no facsimile signal is detected and the result of judgment 213 is YES, the line is disconnected and the LCD 6f is displayed to indicate that a communication error has occurred (process 214), process 207 , and after setting the input of the redial key 6d to an invalid state, this process ends.

Therefore, in this embodiment, if a busy tone is not detected within a certain period of time after the call is made, and the destination does not respond to the call, the line is disconnected and the redial function is disabled, since the destination is not a facsimile machine. state and have the operator confirm the phone number.

This allows the operator to confirm the correct telephone number, thereby reducing inconveniences caused by incorrectly inputting the telephone number.

The present invention can be similarly applied to Group 3 facsimile devices equipped with network control devices having similar functions but having configurations other than those described above.

Furthermore, in the above description, detailed descriptions of parts not directly related to the present invention are omitted.

[Effects of the Invention] As explained above, according to the present invention, when it is determined that the destination is not a facsimile machine, the redial function is disabled and a message is output to confirm the entered telephone number. This prevents the re-calling operation to an inappropriate destination from being repeated many times.
Furthermore, the operator can recognize that the operated telephone number is inappropriate.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a group 3 facsimile device according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing an example of an operation display section, and FIG. 3 is a block diagram showing an example of a network control device. FIG. 4 is a flowchart showing an example of processing when making a call according to one embodiment of the present invention, and FIG. 5 is a flowchart showing an example of processing when making a call according to another embodiment of the invention. DESCRIPTION OF SYMBOLS 1... Control part, 2... System memory, 3... Parameter memory, 6... Operation display part, 6d... Redial key, 25... Tone detection circuit, 27... Polarity reversal detection circuit. Figure 1 Figure

Claims (2)

[Claims] (1) In a facsimile machine equipped with a redial function that calls an input telephone number again with a single key operation, the polar reversal detection means detects polarity reversal of the line network, and the polar reversal detection means detects polarity reversal when making a call. A facsimile apparatus comprising: a control means for disabling a redial function and outputting a message for confirming an input telephone number when a predetermined facsimile signal cannot be detected. (2) In a facsimile machine equipped with a redial function to call an input telephone number again with a single key operation, a polarity reversal detection means for detecting polarity reversal of the line network and a tone for detecting a busy tone of the line network are provided. The detection means includes a control means for disabling the redial function and outputting a message for confirming the input telephone number when both the polarity detection means and the tone detection means do not detect when a call is made. A facsimile machine with special features.