JP2000253172A - Modem and method for reducing standby power - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cut supply of power, when no modular cable is inserted and accordingly to reduce the power consumption by providing a modular connection confirming part which confirms the state of the modular cable and turns on and off a switch part according to the state of the modular cable. SOLUTION: If a modular cable 21 is not inserted into a modular connector 13, this state is confirmed by a modular connection confirming part 14. A switch part 15 is turned off by the control signal sent from the part 14, and the supply of power to a modem chip 12 is stopped. Thus, the part 14 confirms whether the cable 21 is inserted into the connector 13 and the part 15 is turned off, if the cable 21 is recognized not to be inserted into the connector 13. As a result, the power supplied from a personal computer main body 31 is cut off to attain the reduction of power consumption.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a standby power reduction modem suitable for low power consumption and a standby power reduction method.

[0002]

2. Description of the Related Art There is a modem having a function of recognizing a telephone call signal (ring signal) and activating a personal computer.

In this system, a modem chip incorporated in a modem board recognizes an input of a ring signal, outputs a main body start signal to a personal computer main body, and starts the personal computer main body.

[0004]

However, in the above-described conventional modem board, power is supplied to maintain a ring signal reception standby state even when a modular cable is not inserted into the modular connector. It is supposed to be.

Therefore, there is a problem that unnecessary power is consumed.

The present invention has been made in view of such a situation, and when a modular cable is not inserted into a modular connector, the supply of power for maintaining a ring signal reception standby state is stopped. Accordingly, it is possible to provide a standby power reduction modem and a standby power reduction method capable of reducing power consumption.

[0007]

According to a first aspect of the present invention, there is provided a modem with a modem board having a function of recognizing a telephone call signal and activating a personal computer main body. A modem chip for recognizing a call signal and outputting a main unit start signal to the personal computer main unit, a switch unit for turning on and off the power supplied from the personal computer main unit, a modular connector into which a modular cable is inserted, and a modular connector. A modular connection recognizing unit for recognizing whether or not a modular cable is inserted into the connector and, when recognizing that the modular cable is not inserted, turning off a switch unit. Further, the modular connector may include a modular connector shell that houses the modular connector, and a microswitch that detects the housing of the modular connector. Further, the modular connection recognition unit can recognize whether the modular cable is inserted or not by turning on / off the micro switch. A standby power reduction method according to a fourth aspect of the present invention is a standby power reduction method for reducing power consumption of a modem board having a function of recognizing a telephone call signal and activating a personal computer main body. A first step of recognizing and outputting a main body start signal to the personal computer main body, a second step of plugging the modular cable into the modular connector, and a step of recognizing whether the modular cable is plugged into the modular connector. And a fourth step of shutting off the power supplied from the personal computer when it is recognized that the personal computer has not been inserted. Further, the second step may include a step of detecting accommodation of the modular connector. In addition, the third step may include a step of recognizing whether or not a modular cable is inserted according to a detection result of accommodation of the modular connector. In the standby power reduction modem and the standby power reduction method according to the present invention, the modular connection recognition unit recognizes whether or not a modular cable is inserted into the modular connector. The switch unit is turned off, and the power supplied from the personal computer is cut off.

[0008]

Embodiments of the present invention will be described below.

(First Embodiment) FIG. 1 is a block diagram showing a first embodiment of a standby power reduction modem according to the present invention, and FIG. 2 is a diagram showing details of a modular connector shown in FIG. FIG. 3 is a diagram showing a simulated circuit configuration of the switch unit of FIG.

The standby power reduction modem shown in FIG. The modem board 11 includes a modem chip 12, a modular connector 13, a modular connection recognition unit 14, and a switch unit 15.

The modem chip 12 recognizes the input of the ring signal and outputs a main body start signal to the personal computer main body 31. The modular connector 13 is a portion into which the modular cable 21 is inserted.

As shown in FIG. 2, the modular connector 13 has a modular connector shell 13a and a micro switch 13b. When the modular cable 21 is inserted from the direction of the arrow, the micro switch 13b
Is pressed in the direction of the arrow, and the switch is turned on.

The modular connection recognition section 14 recognizes whether the modular cable 21 is inserted. The switch unit 15 interrupts the supply of power. Switch part 15
FIG. 3 shows a simulated circuit configuration.

Next, the operation of the standby power reducing modem having such a configuration will be described.

First, in a state where the modular cable 21 is inserted into the modular connector 13, the modem chip 12 recognizes the input of the ring signal and outputs a main body start signal to the personal computer main body 31. to start.

In this case, as described with reference to FIG.
When the switch b is turned on, the insertion of the modular cable 21 is recognized by the modular connection recognition unit 14. As a result, the switch unit 15 is turned on, and power is supplied to the modem chip 12.

On the other hand, when the modular cable 21 is not inserted into the modular connector 13, the micro switch 13b shown in FIG. 2 is turned off. This allows
The modular connection recognition unit 14 recognizes that the modular cable 21 is not inserted.

At this time, the switch unit 15 is turned off by a control signal from the modular connection recognition unit 14, and the supply of power to the modem chip 12 is stopped.

As described above, in the first embodiment, the modular connector 13 recognizes the modular connector 13
It is determined whether or not the modular cable 21 is plugged in, and when it is recognized that the modular cable 21 is not plugged in, the switch unit 15 is turned off and the power supplied from the personal computer main body 31 is cut off. In addition, power consumption can be reduced.

(Second Embodiment) FIG. 4 is a diagram showing a standby power reduction modem according to a second embodiment of the present invention.
FIG. 5 is a diagram showing a modular connector inserted into the modular connector of FIG. 4.

In the second embodiment, the modular cable 21 has four cores. Also, the inner two (2, 3) are used for telephone line signals, and the other two (1, 4) are unused.

As shown in FIG. 4, the modular connector 13 has a circuit configuration corresponding to two unused connectors (1, 4). Then, by connecting two unused (1, 4) modular cables 21, a power supply loop is completed.

Thus, when the modular cable 21 is not connected to the modular connector 13, the power supply loop is released, and the supply of power to the modem chip 12 is stopped.

[0024]

As described above, according to the standby power reduction modem and the standby power reduction method according to the present invention, the modular connection recognition unit recognizes whether or not a modular cable is plugged into the modular connector, and performs the plugging. When it is recognized that the power is not lost, the switch unit is turned off and the power supplied from the personal computer is cut off, so that low power consumption can be achieved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a standby power reduction modem according to the present invention.

FIG. 2 is a diagram showing details of a modular connector of FIG. 1;

FIG. 3 is a diagram illustrating a simulated circuit configuration using a switch unit in FIG. 2;

FIG. 4 is a diagram showing a second embodiment of a standby power reduction modem according to the present invention.

FIG. 5 is a diagram showing a modular connector inserted into the modular connector of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Modem board 12 Modem chip 13 Modular connector 13a Modular connector shell 13b Micro switch 14 Modular connection recognition part 15 Switch part 21 Modular cable 31 Personal computer main body

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[Procedure amendment]

[Submission date] January 19, 2000 (2000.1.1)
9)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

According to a first aspect of the present invention, there is provided a low power standby modem comprising a modem board having a function of recognizing a telephone call signal and activating a personal computer main body. , the modem board, a modem chip for outputting a main activation signal to the personal computer recognizes the call signal, and a switch unit that performs intermittent power supplied from the personal computer, the modular cable is plugged together
Modular connector for accommodating modular cables
Shell and microphone to detect modular cable accommodation
A modular connector having a switch and a modular connection recognition unit for recognizing whether a modular cable is inserted into the modular connector and turning off the switch unit when recognizing that the modular cable is not inserted. It is characterized by. Further, the modular connection recognition unit can recognize whether the modular cable is inserted or not by turning on / off the micro switch. A standby power reduction method according to claim 3 is a standby power reduction method for reducing power consumption of a modem board having a function of recognizing a telephone call signal and activating a personal computer main body. Recognizing and outputting the main unit start signal to the personal computer main unit
Process and modular plugged into modular connector
A second housing the cable in a modular connector shell
Micro switch for process and accommodating modular cable
And detecting whether a modular cable is plugged into the modular connector.
In the fourth step , if you recognize that it has not been inserted,
And a fifth step of shutting off power supplied from the personal computer main body. In addition, the
The fourth step, it is possible to make in accordance with the detection result of the housing of the modular cable include the step 121 determines whether the modular cables are plugged.

Claims (6)

[Claims] 1. A modem comprising a modem board having a function of recognizing a call signal of a telephone and activating a personal computer main body, wherein the modem board recognizes the call signal and provides a signal to the personal computer main body. A modem chip that outputs a main unit start signal; a switch unit that switches on and off the power supplied from the personal computer main unit; a modular connector into which a modular cable is inserted; and whether the modular cable is inserted into the modular connector And a modular connection recognizing unit that turns off the switch unit when recognizing that the plug is not inserted. 2. The standby power reduction modem according to claim 1, wherein the modular connector comprises: a modular connector shell that houses the modular connector; and a microswitch that detects the housing of the modular connector. 3. The modem according to claim 1, wherein the modular connection recognition unit recognizes whether or not the modular cable is inserted by turning on / off the micro switch. . 4. A standby power reduction method for reducing power consumption of a modem board having a function of recognizing a call signal of a telephone and activating a personal computer main body, wherein said personal computer recognizes the call signal. A first step of outputting a main body start signal to the main body, and a second step of inserting a modular cable into the modular connector
And a third step of recognizing whether or not the modular cable is plugged into the modular connector. If it is recognized that the modular cable is not plugged in, a power supply supplied from the personal computer body And a fourth step of shutting off the standby power. 5. The method according to claim 4, wherein the second step includes a step of detecting accommodation of the modular connector. 6. The method according to claim 3, wherein the third step includes a step of recognizing whether or not the modular cable is inserted in accordance with a detection result of the accommodation of the modular connector. 5. The method for reducing standby power according to item 4.