JPH11225221A - Communication terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and quickly conduct communication by having only to mount a MODEM to the equipment. SOLUTION: A connector 5 connects removably with a MODEM card making communication with a communication channel. A CPU 1 detects whether or not the MODEM card is connected to the connector 5 by a signal at a detection port 3, and sets 'a high level' to a power-on/off port 6 when the MODEM card connects with the connector 5 to turn on power supply to the communication terminal equipment. Furthermore, the CPU 1 discriminates a level of a channel identification port 4 to activate automatically a communication software depending on a model of the connected MODEM card thereby controlling communication between the MODEM card and a communication channel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device capable of communicating with various communication lines according to a connected modem device.

[0002]

2. Description of the Related Art Such a communication terminal device can communicate information with different types of communication lines such as a general analog line, a portable telephone, and a PHS. For this reason, a connector for mounting a modem card corresponding to a communication line is provided, and a communication cable coupled to the modem card can be connected to the communication line. Therefore, by connecting the communication terminal device to the communication line used by the user, the user can transmit and receive information according to a protocol corresponding to the communication line.

[0003]

However, in a conventional communication terminal device, for example, when transmitting a mail, after a modem card is inserted, an operation of turning on a power switch and a communication line to be connected are performed. It is necessary to perform complicated procedures such as an operation of starting communication software adapted to the above and an operation of setting mail transmission. For this reason, there has been a problem that it is difficult to send an e-mail using a small amount of time when going out. SUMMARY OF THE INVENTION An object of the present invention is to enable easy and quick communication simply by installing a modem device such as a modem card.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a connecting means for detachably connecting a modem device for communicating with a communication line, and detecting whether or not the modem device is mounted on the connecting means. When receiving from the detecting means the detecting means for generating the detecting signal and the detecting means that the modem device is connected to the connecting means, the communication software is automatically started to establish communication between the modem device and the communication line. And communication control means for controlling. According to the present invention, when the modem device is attached to the main body of the communication terminal device, the communication software is automatically started to exchange information with the communication line.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a circuit diagram illustrating a part of the communication terminal device according to the embodiment. The CPU 1 has a communication / control port 2 for communicating with an external communication line via a modem card (not shown) to be mounted, a detection port 3 pulled up by a resistor, and pulled up by a resistor. A 3-bit line identification port 4 is provided. The communication terminal device has a connector 5 as connection means for connecting each port to a modem device to be mounted.
Is provided. Therefore, when no modem card is attached to the connector 5, both the detection port 3 and the line identification port 4 are at a high level.

[0006] The detection port 3 is always at a low level regardless of the type of the connected modem card. on the other hand. The three bits of the line identification port 4 change to low level bits according to the type of the connected modem card. For example, when a PHS modem card is attached to the connector 5, as shown in FIG. 1, the detection port 3 goes low, and the three bits (sel1, s) of the line identification port 4 are set.
el2, sel3), two bits (sel1, se)
l3) is at the low level, and one bit (sel2) holds the high level.

When the CPU 1 detects that the detection port 3 has changed from the high level to the low level as shown in FIG. 2, it recognizes that the modem card has been inserted, and generates an interrupt. Then, the 3-bit level of the line identification port 4 is determined.

As shown in FIG. 1, the CPU 1 has a power on / off port 6. When this port 6 is set to a high level, the power supply switch 7 is turned on,
Power is supplied to a ROM (which stores various kinds of communication software), a RAM, a keyboard, a display unit and the like (none of which are shown) connected to the system bus 8 to bring these units into an operating state. (Overall function mode). On the other hand, when this port 6 is set to the low level, these parts are deactivated, and the CPU 1 itself operates only in the function of monitoring the detection port 3 while the other functions are deactivated in the sleep mode (one mode). Function mode). Therefore,
In the sleep mode, the current consumption becomes extremely small.

Next, the operation of the embodiment will be described with reference to the CPU 1.
This will be described with reference to the flow of a program stored inside the program. The CPU 1 determines whether or not the detection port 3 has become low level, that is, whether or not a modem card has been inserted (step S1). When the low level has been reached, it is determined whether or not the current mode is the sleep mode (step S2). If the mode is the sleep mode, the mode shifts to the operation mode (step S3). Therefore, all ports and the system bus become active. Next, the power on / off port 6 is set to a high level to power on the communication terminal device (step S
4).

Next, the 3-bit level of the line identification port 4 is determined (step S5), and communication software adapted to the connected modem card is started (step S5).
6). Then, it is determined whether or not there is a request for sending and receiving a mail (step S7). When there is a request to send and receive mail, a mail sending and receiving process is performed (step S8).
If there is no e-mail transmission / reception request, other processing is performed (step S9). After completion of the mail transmission / reception processing or other processing, the flow shifts to step S1 to determine the level of the detection port 3. After the modem card is inserted and the communication terminal device is turned on, the loop of step S1, step S7, step S8 (or step S9) is repeatedly executed unless the detection port 3 changes to the high level.

In step S1, when the detection port 3 changes from low level to high level, it means that the modem card has been removed. In this case, it is determined whether or not the current mode is the operation mode, that is, whether or not the communication terminal device is in a power-on state (step S10). If it is the operation mode, the power on / off port 6 is set to low level, and the communication terminal device is turned off (step S11). Then, the mode shifts from the operation mode to the sleep mode (step S12). Thereafter, the process proceeds to step S1, and the level of the detection port 3 is determined. If the detection port 3 is at the high level, steps S1 and S10 are repeatedly executed to monitor the installation of the modem card.

As described above, according to the above-described embodiment, the connector 5 constitutes connection means for detachably connecting a modem card for performing communication with a communication line. CPU1
Detecting means for detecting whether a modem card is attached to the connector 5 and generating a detection signal, and when receiving a detection signal indicating that the modem card is connected to the connector 5, the communication terminal apparatus is powered on. And communication control means for automatically starting communication software and controlling communication between the modem card and the communication line.

According to this configuration, when the modem card is mounted on the main body of the communication terminal device, the communication software is automatically started to exchange information with the communication line. Therefore, communication can be performed easily and quickly only by installing a modem card.

In the above embodiment, the power is automatically turned on when a modem card is inserted. However, a configuration may be employed in which whether or not the power is automatically turned on is set by a key switch.

In the flow of FIG. 3, the communication terminal is powered on or off in accordance with the presence or absence of the modem card regardless of the operation of the power switch of the communication terminal. When is turned off, the CPU 1 may not be put into the sleep mode, but may be completely stopped. FIG. 4 shows a flow in this case. That is, after the mail transmission / reception processing or other processing, it is determined whether or not the power switch is turned off (step S13). If the power switch is not turned off, the process proceeds to step S1 to detect the level of the detection port 3.
When the power switch is turned off, this flow ends. In this case, the communication terminal device completely stops operating.

[0016]

According to the present invention, when a modem device is mounted on the main body of a communication terminal device, communication software is automatically started to exchange information with a communication line. Therefore,
Communication can be performed easily and quickly simply by attaching the modem device.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a part of a communication terminal device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a timing chart in the CPU of FIG. 1;

FIG. 3 is a flowchart showing the operation of the CPU in FIG. 1;

FIG. 4 is a flowchart of a CPU according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 Communication / control port 3 Detection port 4 Line identification port 5 Connector 6 Power on / off port 7 Power supply switch 8 System bus

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[Procedure amendment]

[Submission date] March 30, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

[Title of the Invention] Communication terminal device

Claims (3)

[Claims] 1. A connection means for detachably connecting a modem device for performing communication with a communication line, and a detection means for detecting whether or not the modem device is mounted on the connection means and generating a detection signal. When receiving a detection signal indicating that a modem device is connected to the connection unit from the detection unit, the communication unit automatically starts communication software to control communication between the modem device and the communication line. A communication terminal device comprising: a control unit. 2. The communication control means according to claim 1, wherein said communication control means has a line discrimination means for discriminating a communication line corresponding to said modem device based on a line identification signal obtained from a connected modem device. 2. The communication terminal device according to claim 1, wherein 3. In a partial function mode in which only the function of receiving the detection signal is operable, the communication control means receives a detection signal indicating that a modem device is connected to the connection means from the detection means. 3. The communication terminal according to claim 1, wherein the communication terminal shifts to an overall function mode in which the whole functions, and automatically starts communication software to control communication between the modem device and the communication line. apparatus.