JP2738597B2 - Communication method in facsimile machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication method in a facsimile apparatus having an automatic calling function.
It relates to a method for setting the communication parameters.

[0002]

2. Description of the Related Art When performing communication by facsimile,
It is necessary for the maintenance person to initialize various communication parameters in advance according to the situation where the device is used. FIG.
FIG. 7 is an explanatory diagram showing communication procedures of domestic communication and overseas communication, and shows a difference in communication procedure due to a difference in setting of various communication parameters.

And conforms to CCITT recommendation T-30
However , in a facsimile apparatus having a calling function, communication parameters that need to be changed depending on whether communication is performed overseas or only in Japan are as follows (a) to (d). There is something to show .

(A) ON / OFF of setting for ignoring the first digital identification signal (DIS signal) (b) Setting of interval between called station identification signal (CED signal) and DIS signal (c) Echo suppressor ON / OFF of Protect Tone (d) Time Setting of Phase B Procedure Start Waiting Timer The above communication parameters (a) to (c) are settings for suppressing the influence of an echo generated in overseas communication. The setting for ignoring the first DIS signal is turned on for overseas communication and turned off for domestic communication. Here, the DIS signal
Is the attribute of the called station such as resolution and paper size.
This is a signal to notify the calling station. Also, CED signal and DIS
The interval between the signal and the signal is set as long as 1.5 sec for overseas communication and set as short as 75 msec for domestic communication. here
The CED signal means that the called station is connected to a non-telephone.
Is notified to the called station. Further, the setting of the echo suppressor protect tone is turned on for overseas communication and turned off for domestic communication. Where the echo suppressor
The shader protect tone is shown as a shaded portion in FIG.
Is added to the beginning of the image data,
A machine that does not affect the image data even if the head is missing
Has ability.

[0005] The communication parameter (d) is a setting for preventing disconnection of a line due to a timeout when it takes time to connect an exchange with an overseas country. The time of the phase B procedure start wait timer is 9 for overseas communications.
It is set as long as 0 sec, and as short as 40 sec in domestic communication. Here, the phase B procedure is shown in FIG.
After the DIS signal is transmitted from the called station,
This is a procedure until data is transmitted.

[0006]

However, in the conventional method of setting communication parameters, there is no problem when the facsimile is dedicated to either domestic communication or overseas communication. In the case of domestic communication, there is a problem that the communication time becomes long because the interval between the CED signal and the DIS signal is long.

[0007] On the other hand, when performing overseas communication after setting domestic communication, the effect of echo cannot be suppressed, and the line is disconnected when it takes time to connect the exchange. was there.

[0008] Further, these communication parameters are not recognized by the user, and it is difficult for the user to change each transmission parameter.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a communication method in a facsimile apparatus which can always perform domestic transmission and overseas transmission with appropriate communication parameters. To provide.

[0010]

According to a communication method in a facsimile apparatus according to the present invention, a call destination is designated, a dial number of a call destination registered in advance is called, and an automatic call originating image data is transmitted. In a facsimile apparatus having a call function and a function of switching communication parameters at the time of transmission between domestic transmission and overseas transmission, whether the transmission is domestic transmission or overseas transmission based on the dial number of the call destination Judgment and when it is judged that it is domestic transmission,
The setting of ignoring the first one of the digital identification signals, which is a signal for notifying the calling station of the own terminal attribute of the called station, is turned off, and the called station is connected to the non-telephone. To the called station
The interval between the called station identification signal to be notified and the first digital signal is set to a first time, and the image data
Turn off the echo suppression protection tone added to the head, and set the first digital signal from the called station
Is transmitted and the data is transmitted.
Set the start time of a certain phase B procedure start timer to the second
Set to the time of
The setting for ignoring the second digital identification signal is turned on, the interval between the called station identification signal and the first digital signal is set to a third time longer than the first time, and the echo suppression protect tone is Turning on the setting, automatically switching the communication parameter group at the time of transmission so as to set the set time of the start waiting timer of the phase B procedure to the fourth time longer than the second time, and transmitting the data. Features.

[0011]

According to the present invention, domestic transmission or overseas transmission
, Ignore the first digital identification signal
Setting, the called station identification signal and the first digital
Signal spacing and echo suppression protect toe
Setting and the start wait timer for the phase B procedure
Since the image data is transmitted by automatically switching all the steps, the image data is transmitted with appropriate communication parameters in both domestic transmission and overseas transmission .

[0012]

FIG. 1 is a block diagram of a facsimile apparatus for implementing a communication method according to the present invention. FIG.
5 is a flowchart showing one embodiment of a communication method according to the present invention.

The communication method in the facsimile apparatus of this embodiment is applied only to a facsimile apparatus having an automatic calling function. Here, the automatic calling function is, for example, an operation of pressing an abbreviated dialing button, by simply designating a call destination, calling a dial number of a call destination registered in advance and calling the destination. This function connects the called station to the communication line and automatically performs the operation of transmitting data.

The communication method in the facsimile apparatus of the present embodiment can be applied only to a facsimile apparatus having a function of switching communication parameters at the time of transmission between domestic transmission and overseas transmission. Here, the communication parameters to be switched include those shown in (a) to (d) listed in the above-mentioned conventional technology.

In the communication method in the facsimile apparatus according to the present embodiment, when the facsimile apparatus is started, a call request is issued from the auto call task 1 to the communication procedure task 2 as shown in FIG. At this time, the call request includes the dial number of the call destination.

Next, in response to the call request, the communication procedure task 2 sends out image data according to the protocol. Here, image data transmission is performed by the algorithm shown in FIG.

As shown in FIG. 2, in the case of manual transmission (for example, dialing manually, confirming the telephone line connection with an oscillating sound, and pressing the transmission button), step 1 is performed.
Is NO, and transmission is performed with the communication parameters already set (step 5).

In the case of an automatic call, the determination in step 1 is YES, and the dial number included in the call request is recognized, and for example, the outside line "001" or the extension "0" It is determined whether or not "# 001" exists (step 2). If so, the communication parameter is set for overseas communication (step 3). If not, the communication parameter is set for domestic communication (step 4).

As described above, in the present embodiment, the dial number of the call destination is recognized, and based on the recognized dial number, the communication parameter at the time of transmission is determined for either domestic transmission or overseas transmission. Automatically switch to crabs,
Since image data is transmitted, transmission is always performed with appropriate communication parameters. Accordingly, the communication time does not become unnecessarily long in domestic communication, and it is possible to prevent an influence of an echo from being increased and a line from being disconnected in overseas communication.

[0020]

As described above , according to the present invention,
The first digital identification when it is determined to be sent overseas
Turn on the setting to ignore the signal, and set the called station identification signal and the first
The interval between the first digital signal and the third digital signal is longer than the first time.
Set the time to echo suppression protection toe
By turning on the settings for
The effect of the echo can be sufficiently suppressed. Also book
According to the requested invention, when it is determined that transmission is domestic,
Turn off the setting to ignore the digital identification signal of the eye
The interval between the station identification signal and the first digital signal is set to the first
Set to the time and set the start wait timer for the phase B procedure
Since the time is set to the second time, the
The communication time can be shortened sufficiently. Further, according to the present invention,
For example, when it is determined that transmission is overseas, the phase B
The fourth time when the set time of the start waiting timer is longer than the second time
By setting in between, you can connect to the exchange in overseas communications.
The line is disconnected when it takes a long time to continue
Can be prevented .

[Brief description of the drawings]

FIG. 1 is a block diagram of a facsimile apparatus for implementing a communication method according to the present invention.

FIG. 2 is a flowchart showing one embodiment of a communication method according to the present invention.

FIG. 3 is an explanatory diagram showing communication procedures of domestic communication and overseas communication.

[Explanation of symbols]

 1 Auto call task 2 Communication procedure task

Claims (1)

(57) [Claims] 1. An automatic calling function for calling a dial number of a call destination registered in advance and transmitting image data by designating a call destination, and a communication parameter for transmission for domestic transmission or overseas. In a facsimile machine having a function of switching to one for transmission, it is determined whether the transmission is domestic transmission or overseas transmission based on the dial number of the call destination, and when it is determined that the transmission is domestic transmission,
The setting of ignoring the first one of the digital identification signals, which is a signal for notifying the calling station of the own terminal attribute of the called station, is turned off, and the called station is connected to the non-telephone. To the called station
The interval between the called station identification signal to be notified and the first digital signal is set to a first time, and the image data
Turn off the echo suppression protection tone added to the head, and set the first digital signal from the called station
Is transmitted and the image data is transmitted.
Set the start time of a certain phase B procedure start timer to the second
Set to the time of
The setting for ignoring the second digital identification signal is turned on, the interval between the called station identification signal and the first digital signal is set to a third time longer than the first time, and the echo suppression protect tone is Turning on the setting, automatically switching the communication parameter group at the time of transmission so as to set the set time of the start waiting timer of the phase B procedure to the fourth time longer than the second time, and transmitting the data. A communication method in a facsimile machine.