JP3294360B2 - 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 facsimile apparatus having a network interface capable of connecting to a plurality of networks such as ISDN and PSTN.

[0002]

2. Description of the Related Art A conventional facsimile apparatus is rarely used by connecting to a plurality of networks, and parameters such as a reception sensitivity and a transmission level of a modem are set at the time of initialization when the power is turned on. It was general.

[0003] If parameters such as the reception sensitivity and transmission level of the modem are not set to the optimum values depending on the network, the quality of a facsimile message may be deteriorated or a communication error may occur. In this case, means for setting a plurality of modem parameters is required.

On the other hand, in a conventional facsimile apparatus having a plurality of network interfaces, a communication control unit is provided for each network, and a modem is provided for each network.
Since these are provided individually, parameters such as the reception sensitivity and transmission level of the modem are generally set at the time of initialization when the power is turned on.

[0005] According to this method, it is not necessary to be aware of which network the modem control unit communicates when making or receiving a call. Can be.

[0006]

However, in the above-mentioned conventional example, it is necessary to provide a communication control unit for each network and to provide one modem for each network. There was a disadvantage that the cost increased.

SUMMARY OF THE INVENTION An object of the present invention is to provide a facsimile apparatus capable of communicating with a plurality of networks by one modem.

[0008]

According to the present invention, a plurality of networks are connected.
Network interface and modem reception
Modem parameters including sensitivity are stored for each network.
Modem parameter storage, and the destination network
Network identification means for identifying whether the call is a call and corresponding to the network at the time of the incoming call
Communication after setting the above modem parameters.
Facsimile machine having communication control means. Ma
In addition, the present invention provides, in addition to the above-described configuration,
The value of the modem parameter and the value set this time
As a result of comparison by the comparing means and the comparing means, the two values
If they are the same, do not reset the modem parameters.
Facsimile apparatus having parameter setting control means
It is.

[0009]

FIG. 1 is a block diagram showing a configuration of a facsimile apparatus according to a first embodiment of the present invention.

The basic operation unit 1 has an operation panel and a display unit for the operator to operate the facsimile main unit and a function of controlling them. The image processing unit 2 encodes an image read from the scanner unit. To remember
The stored encoded data is decoded and output to the printer unit. Further, the facsimile control unit 3
The control unit executes a facsimile protocol in accordance with an instruction to the modem control unit.

The storage unit 4 stores the reception sensitivity and transmission level of a modem used when communicating with the ISDN.
N modem parameter storage unit.
A PSTN modem parameter storage unit that stores the reception sensitivity and transmission level of the modem used when communicating with N.

The scanner control unit 6 controls a scanner to read a transmission original, and the printer control unit 7
It controls the printer and outputs the received document. The modem control unit 8 controls the setting of the modem and the exchange of data with the modem.

[0013] The ISDN line control unit 9 is provided with the ISDN line 1
The PSTN line control unit 10 controls connection and disconnection of the PSTN line 12. The modem parameter storage unit 13 stores the modem parameters currently set for the modem.

FIG. 2 is a flowchart showing a calling procedure in the facsimile apparatus of the present embodiment.

First, the operator selects a network with which communication is desired from the operation panel (S001), instructs the other party's dial, and makes a call (S002). Then, when the other party answers the call and makes a call, the type of the selected network is checked (S003).
If it is ISDN, the modem parameters are read from the ISDN modem parameter storage unit 4 (S004), and P
If it is STN, the modem parameters are read from the PSTN modem parameter storage unit 5 (S005).

Next, the currently read modem parameter is compared with the previously set modem parameter (S006).
If not, the selected modem parameters are set in the modem (S007), the modem parameters stored in the modem parameter storage unit 13 are rewritten (S008), normal facsimile transmission is performed (S009), and if the compared modem parameters are the same, (S006) Normal facsimile transmission is performed without setting the selected modem parameter (S009), and the communication is terminated.

FIG. 3 is a flowchart showing an incoming call procedure in the facsimile apparatus of this embodiment.

At the time of an incoming call, a network for communication is determined depending on whether the call is from the ISDN line control unit 9 or the PSTN line control unit 10 (S101). The modem parameters are read from the modem parameter storage unit 4 (S102), and the PSTN is read.
If the call is from the network, the modem parameters are read from the PSTN modem parameter storage unit 5 (S103).

Next, the currently read modem parameter is compared with the previously set modem parameter (S104).
If not, the selected modem parameters are set in the modem (S105), the modem parameters stored in the modem parameter storage unit 13 are rewritten (S106), normal facsimile transmission is performed (S107), and if the compared modem parameters are the same. (S104) Normal facsimile transmission is performed without setting the selected modem parameter (S107), and the communication is terminated.

FIG. 4 is a flowchart showing a procedure for initializing a modem in the facsimile apparatus of this embodiment.

The initialization of the modem is performed when the power is turned on. In this embodiment, the ISDN modem parameters are read at initialization, and
The case of starting up for N is used as a model. First, when the power is turned on, the ISDN modem parameter storage unit 4
Then, the modem parameters are read out from (S201), and the modem parameters are set in the modem (S202).

Then, the currently selected modem parameter is
The data is written in the modem parameter storage unit 13 (S20).
3), used for setting modem parameters from next time.

Next, a second embodiment of the present invention will be described. FIG. 5 is a block diagram showing the configuration of the facsimile apparatus of the second embodiment.

In the first embodiment, the currently set modem parameters are stored in the modem parameter storage unit 13, and the modem parameters read at the time of calling or receiving a call are compared with the modem parameters of the storage unit 13. In the second embodiment, the modem parameter storage unit 13 is omitted, and the modem parameters read at the time of outgoing or incoming calls are stored in the second embodiment. The facsimile transmission is automatically set in the modem.

The other structure is the same as that of the first embodiment, and therefore, the same reference numerals are given and the description is omitted.

FIG. 6 is a flowchart showing a calling procedure in the facsimile apparatus of the present embodiment.

First, the operator selects a network with which communication is desired from the operation panel (S301), and instructs the other party's dial to make a call (S302). Then, when the other party answers and calls up, the type of the selected network is checked (S303).
If it is ISDN, the modem parameters are read from the ISDN modem parameter storage unit 4 (S304), and P
If it is STN, the modem parameters are read from the PSTN modem parameter storage unit 5 (S305).

Then, the read modem parameters are set in the modem (S306), normal facsimile transmission is performed (S307), and the communication is terminated.

FIG. 7 is a flowchart showing an incoming call procedure in the facsimile apparatus of the present embodiment.

At the time of an incoming call, a network for communication is determined depending on whether the call is from the ISDN line control unit 9 or the PSTN line control unit 10 (S401). The modem parameters are read from the modem parameter storage unit 4 (S402), and the PSTN is read.
If the call is from the network, the modem parameters are read from the PSTN modem parameter storage unit 5 (S403).

Then, the read modem parameters are set in the modem (S404), normal facsimile transmission is performed (S405), and the communication is terminated.

In each of the embodiments described above, a case has been described in which there are two types of networks, an ISDN network and a PSTN network. However, the present invention can be similarly applied to other networks.

[0033]

According to the first aspect of the present invention, the incoming call
From the network, and correspond to the identified network.
To set the modem parameters, including the modem's reception sensitivity.
And communicate and respond to incoming calls with appropriate reception sensitivity
When communicating, one modem is set for multiple networks.
All you need is to have multiple modems
The size and cost of the equipment can be avoided.
Has the effect of

According to the second aspect of the present invention, a call is received.
Set the modem parameter value that was set last time and this time
Value and if both values are the same, do not reset.
The opportunity to reset the modem,
Can be used at all times and the time required for receiving calls is short
And the operator can operate smoothly
This has the effect.

[Brief description of the drawings]

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

FIG. 2 is a flowchart showing a calling procedure in the facsimile apparatus of the first embodiment.

FIG. 3 is a flowchart showing an incoming call procedure in the facsimile apparatus of the first embodiment.

FIG. 4 is a flowchart showing a procedure for initializing a modem in the facsimile apparatus of the first embodiment.

FIG. 5 is a block diagram showing a second embodiment of the present invention.

FIG. 6 is a flowchart showing a calling procedure in the facsimile apparatus of the first embodiment.

FIG. 7 is a flowchart showing an incoming call procedure in the facsimile apparatus of the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Basic operation part, 2 ... Image processing part, 3 ... Facsimile control part, 4 ... ISDN modem parameter storage part, 5 ... PSTN modem parameter storage part, 6 ... Scanner control part, 7 ... Printer control part, 8 ... Modem control 9: ISDN line control unit, 10: PSTN line control unit, 11: ISDN line, 12: PSTN line, 13: Modem parameter storage unit.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) H04M 11/00-11/10 H04N 1/00 H04N 1/32 H04Q 3/58 101-107

Claims (2)

(57) [Claims] 1. A network interface that can be connected to a plurality of networks; and a modem parameter including a receiving sensitivity of the modem is associated with each network.
Modem parameter storage unit to respond to memory and; network identification hand identifies whether the incoming call call came from which network
Sets the modem parameter corresponding to the network of Chakukoji; stage and
Communication control means for performing communication after the facsimile apparatus. 2. A comparison means according to claim 1, wherein said comparison means compares the value of a modem parameter set last time with a value set this time at the time of receiving an incoming call ;
If not, do not reset the modem parameters
A facsimile apparatus comprising: setting control means;