KR100883672B1 - ACR device for mobile phone with power saving function - Google Patents

Abstract

The ACR device according to the present invention can be operated while attached to the mobile phone at all times, and after the preset waiting time set by the user by themselves to reduce the power consumption of the mobile phone by reducing the power consumption of the mobile phone battery The present invention relates to an ACR device for a mobile phone which does not need to be used and does not damage the data connection terminal of the mobile phone since it is not necessary to attach or detach the ACR device to the mobile phone frequently to reduce the battery consumption of the mobile phone. To this end, the present invention relates to an ACR device that is connected to a data connection terminal of a mobile phone and receives a power value of a battery for driving the mobile phone, and a key value of a key selected from the mobile phone, and a switching switch is provided at one side of the case. Each time is pressed, the ACR device is turned on by the standby mode, which cuts off the communication between the mobile phone and the ACR device, and the operating mode in which the communication between the mobile phone and the ACR device is maintained. Notify the user of the operating status of.

ACR, telecommunications service, discount phone card, switch, data connection terminal, power saving

Description

ACR device for mobile phone with power saving function

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ACR device, and more particularly, to a breakdown of an ACR device by reducing current consumption without detaching and detaching an ACR device driven by a battery built in a mobile phone, and an ACR for a mobile phone. Relates to a device.

The ACR device is a device used in connection with a data connection terminal of a mobile phone, and was developed for convenient use of a discounted phone card issued by a separate telecommunications operator to reduce a user's call charge.

A typical telecommunications service is a service that provides wireless communication by leasing a frequency band operated by a wireless network operator. The access number usually starts with zero. For example, access numbers beginning with 00700, or 080, allow for cheaper international calls. The discount phone card is provided by a company that provides each telecommunication service, and the access number of the telecommunication service company and the card number for the card are assigned. When a user makes a call using a mobile phone, the user must enter both the access number and the card number to use the discounted phone card. In order to use the discount phone card, the use rate of the discount phone card has been low until now due to the inconvenience of having to input the access number and the card number. In order to solve this problem, the ACR device has been released that automatically provides the mobile phone with the card number and access number assigned to the discount phone card.

The ACR device is connected to the data connection terminal of the cellular phone, forms a communication channel with the cellular phone, and generates a DTMF signal for the card number when the cellular phone enters the access number of the designated telecommunications service provider and provides the cellular phone with the user's discount. Make your phone card handy. In addition, the recent ACR device is a mobile phone user subscribes to a separate telecommunications carrier service, when the mobile phone user enters the other party's phone number to make an outgoing call, the ACR device automatically tries to connect to the telecommunications carrier, and when the user is connected It is developed to make a call with the other party by transmitting the telephone number entered by DTMF tone.

However, since the ACR device uses the battery installed in the mobile phone as the driving power, when the discount phone card is not used as the mobile phone, the mobile phone consumes the battery to maintain communication with the ACR device, and the ACR device also maintains communication with the mobile phone. To drain the phone's battery. Therefore, there is a disadvantage in reducing the waiting time of the mobile phone and the time available to talk on the mobile phone. Due to this problem, most users are disconnecting the ACR device from the mobile phone when not using the discount calling card. This usage causes a problem of frequently breaking the data connection terminal of the mobile phone.

Accordingly, an object of the present invention is to provide an ACR device that does not generate unnecessary power consumption by allowing the mobile phone and the ACR device to communicate with each other only when using a separate communication service.

In addition, another object of the present invention is to provide an ACR device that does not damage the data connection terminal of the mobile phone.

According to the present invention, in the ACR device connected to the data connection terminal of the mobile phone to receive the power of the battery for driving the mobile phone, and the key value of the key selected by the mobile phone, a switching switch is provided on one side of the case And a standby mode for interrupting communication between the mobile phone and the ACR device each time the switching switch is pressed, and an operation mode in which communication between the mobile phone and the ACR device is maintained and alternately performing the operation mode. Is achieved by an ACR device for a mobile phone which notifies the user of the operating state of the ACR device via a lighted display device.

According to the present invention, the object is accommodated in a case having a switch disposed on one side, the interface unit is connected to the data connection terminal of the mobile phone receives the battery power of the mobile phone, and receives the key value of the key selected in the mobile phone A memory having a connection number and a card number of a predetermined communication operator, and a key value of a key selected from the mobile phone, obtaining a call destination phone number, and storing the obtained call destination phone number in the memory; When the mobile phone is dialed up automatically by transmitting the access number of the predetermined communication service provider previously stored in the memory to the mobile phone through the access terminal, and the mobile phone is dialed up and connected to the access number of the predetermined communication service provider, Generate a DTMF signal for the call destination phone number and provide it to the mobile phone The mobile phone is achieved by the control unit for which is to be connected to the call destination telephone number and said switch is alternately select the standby mode, and operation mode each time the selection.

Preferably, the electronic device further includes a display unit provided in the case and blinking when the mobile phone and the ACR device are in an interoperable mode.

The controller may enter the standby mode when the key value is not provided from the mobile phone within a preset waiting time.

The waiting time is preferably set by the numeric keys selected by the mobile phone.

The waiting time may be set by a special character key and a numeric key selected by the mobile phone.

The controller may release the standby mode and enter the operation mode when the switch is selected.

The display unit may further include a display unit which is turned on in the operation mode, and the controller may turn off the display unit in the standby mode.

As described above, the present invention does not need to attach or detach an ACR device to a mobile phone which conveniently uses a discount calling card provided by a separate telecommunication service provider. The ACR device according to the present invention can be operated while attached to the mobile phone at all times, and after the user's preset standby time, by switching to the standby mode by itself to reduce the current consumption of the mobile phone, the user cares about the battery consumption of the mobile phone There is no need to write.

Accordingly, since the ACR device does not need to be attached or detached to the cellular phone data connection terminal as often as the conventional ACR device, the data connection terminal does not have to be damaged.

In addition, the present invention enables the user to control the on-off of the ACR device by simple switch operation, thereby minimizing battery consumption of the mobile phone.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates a method in which an ACR device and a mobile phone are connected according to the present invention.

As shown, the ACR device 100 according to the present invention includes a connector 110 and a switch 140 for connecting with the data connection terminal 21 of the mobile phone 20, the switch 140 is a case ( It is exposed to one side of 101) to allow the user to press.

When the user selects the other party's telephone number using a key (not shown) provided in the mobile phone 20, the ACR device 100 selects the key selected by the mobile phone 20 through the data connection terminal 21 of the mobile phone 20. Receives a key value of and stores the received key value in a memory (not shown).

When the call target phone number is authorized through the connector 110, the ACR device 100 stops the transmission of the mobile phone 20 by transmitting a "END" signal to the mobile phone 20, and a separate communication service provider to the mobile phone 20. Transfers the access number and the card number. The mobile phone 20 automatically dials up using this. When the mobile phone 20 is connected to the telecommunications operator, the ACR device 100 generates a DTMF signal for the other party's phone number stored in a memory (not shown) and provides it to the mobile phone 20 through the data connection terminal 21. The mobile phone automatically dials up using DTMF signals.

When the mobile phone 20 is connected to a separate telecommunications carrier, the separate telecommunications carrier connects the user's mobile phone 20 to make a call with the other party. That is, the user may conveniently use the discount rate system provided by the telecommunication service provider by using the DTMF signal provided by the ACR device 100. In this case, the ACR device 100 according to the present invention may switch the ACR device 100 to the standby mode or the operation mode through the switch 140 provided in the case 101.

When the ACR device 100 enters the standby mode, power consumption of the ACR device 100 is extremely small. In addition, when entering the standby mode, the ACR device 100 transmits a standby message to the mobile phone 20. The standby message may mean disconnection of the ACR device 100 or a message for preventing the cellular phone 20 from maintaining data communication with the ACR device 100 because the ACR device 100 does not respond. The mobile phone 20 detects the ACR device 100, calls the ACR device 100, or maintains data communication with the ACR device 100 in response to a standby message transmitted from the ACR device 100. Take no action. In general, the current consumed by the mobile phone 20 to maintain a communication channel with the ACR device 100 is 20 mA to 30 mA, and the current required for the normal operation of the ACR device 100 is 15 mA. The maximum current consumed by both the mobile phone 20 and the ACR device 100 is 45 mA, and when both devices enter the standby mode, the current consumption of 45 mA is reduced.

After sending the standby message from the ACR device 100 to the mobile phone, the mobile phone 20 does not find or call the ACR device 100 and does not take any action to maintain a communication channel with the ACR device 100. Do not. Therefore, when the ACR device 100 according to the present invention does not use the access number of the separate communication service provider through the mobile phone 20, the ACR device 100 sends a standby message to the mobile phone, and the ACR device 100 is connected to the ACR device 100. Both mobile phones 20 turn off the communication channel so that no current consumption occurs by both.

On the other hand, the ACR device 100 analyzes the card number of the discount phone card, the memory for storing the access number of the telecommunications carrier, and the key value of the key selected in the mobile phone 20 to analyze the card number and access number stored in the memory. The control unit 20 transmits the battery power of the mobile phone 20 through the data connection terminal 21.

Accordingly, the ACR device 100 according to the present invention may selectively switch a communication mode, that is, a standby mode and an operation mode, between the mobile phone 20 and the ACR device 100 using the switch 140. In addition, when the use request does not occur within a waiting time set by the user, the ACR device 100 blocks the communication with the mobile phone 20 by itself (standby according to the standby message transmission). Mode switching) minimizes the consumption of a mobile phone battery generated by the ACR device 100. Here, the ACR device 100 may switch to the operation mode to communicate with the mobile phone 20 through whether the key value of the key pressed in the mobile phone 20 through the data connection terminal 21 is received within the waiting time. Can be.

2 is a block diagram of an ACR device according to an embodiment of the present invention.

The illustrated ACR device 100 includes a connector 110, an interface unit 120, a controller 130, a switch 140, a ROM 150, a RAM 160, a flash ROM 170, and a display unit 180. It is provided.

When the connector 110 is connected to the data connection terminal 21 on the mobile phone 20 side, the connector 110 is connected to the interface unit 22 on the mobile phone 20 side via the data connection terminal 21. When the connector 110 is connected to the data connection terminal 21 on the cellular phone 20 side, the interface unit 120 communicates with the interface 22 on the cellular phone 20 side to be pressed by the cellular phone 20. Receives a key value (not shown).

The ROM 150 may include a card number, access information such as an access number, and waiting time information, and may be implemented in the form of a flash ROM or an EEPROM.

When the user presses the other party's phone number and makes a call, the controller 130 stores the information in the RAM 160 and accesses the access information stored in the ROM 150 (eg, an alternative operator exchange number such as 00700) to the mobile phone 20. The mobile phone 20 provides access to a separate telecommunications provider using this. When the mobile phone 20 is connected to a separate telecommunications provider, the control unit 130 of the ACR device 100 reads the other party's telephone number stored in the RAM 160 and generates a DTMF signal for the telephone number. The generated DTMF signal is provided to the mobile phone 20 through the interface unit 120 and the connector 110, and the mobile phone 20 automatically dials up through the DTMF signal, and the DTMF signal provided to the mobile phone 20. Is provided as an exchange operator (not shown) on the side of the telecommunications operator, the exchange of the telecommunications operator recognizes this and initiates a call connection to the other party.

On the other hand, the control unit 130 receives the battery power of the mobile phone 20 side to the ACR device 100 according to the following method to determine whether to maintain (operation mode) or block (standby mode) communication with the mobile phone. .

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Each time the switch 140 is selected, the controller 130 may alternately perform the standby mode and the operation mode. For example, when the switch 140 is first pressed, the controller 130 switches to an operation mode to maintain communication with the mobile phone 20 (maintain operation mode). At this time, both the mobile phone 20 and the ACR device 100 consume a current to maintain communication.

When the switch 140 is pressed once more, the controller 130 induces the mobile phone 20 to enter the standby mode and also switches the ACR device 100 to the standby state. At this time, the mobile phone 20 and the ACR device 100 do not consume current because all the parts capable of communicating are switched to the standby mode.

That is, the controller 130 alternately performs the normal operation mode and the standby mode in response to the on-off of the switch 140. Current consumption in standby mode is extremely low in any electronic device. This is because the standby mode of the electronic device cuts off the power provided to other electronic components, leaving only the function of responding to an external stimulus (eg, when the switch 140 is switched on).

In the control method mentioned in the present embodiment, the user can operate the ACR device 100 in the standby mode or operate the ACR device 100 without alternating the connection and disconnection with the data connection terminal 21 on the cellular phone 20 side. Allows you to set the mode.

This means that the ACR device 100 does not need to be separated from the mobile phone in order to prevent the battery of the mobile phone 20 side from being consumed by the ACR device. Therefore, when using the ACR device 100, there is no fear that the data connection terminal on the cellular phone 20 side will be damaged.

The controller 130 indicates a state in which the ACR device 100 and the mobile phone 20 can communicate with each other by driving the display unit 170 to emit light when in the operation mode. When the display unit 170 is turned on, the ACR device 100 operates to indicate a state of connecting a telephone to a separate telecommunications operator. In the opposite case, the controller 130 turns off the display unit 170 to turn off the display unit 170. Both the 100 and the mobile phone 20 are in the standby mode, that is, the state in which the ACR device 100 and the mobile phone consume the minimum current. The display unit 170 is preferably composed of LED, it may be implemented as an integrated built in the switch 140. In this case, when the ACR device 100 switches to the operation mode by the switch 140, the display unit 170 integrally formed with the switch 140 emits light, and vice versa.

3 is a flowchart illustrating a method of operating the ACR device 100 according to the present invention.

First, when the ACR device 100 is in an operating state (S201), a user inputs a counterpart phone number to be called using a key provided in the mobile phone 20, and then presses a call button (S202). At this time, the mobile phone 20 side data connection terminal 21 passes the key value of the key selected by the mobile phone 20 to the ACR device 100 (S203), and the controller 130 stores the phone number selected by the user in the memory. (S204). The control unit 130 transmits an END signal to the mobile phone 20, the mobile phone 20 terminates the call connection (S205).

Next, the controller 130 transmits the access number of the separate communication service provider stored in the ROM 150 to the mobile phone 20 (S206), and the mobile phone 20 attempts to access the corresponding communication service provider. When the mobile phone 20 is connected to a separate telecommunications provider (S207), the mobile phone 20 transmits a call connection state to the ACR device 100, and the controller 130 of the ACR device 100 responds to the RAM ( A DTMF signal for the counterpart phone number stored in 160 is generated and transmitted to the mobile phone 20 (S208). Next, the telecommunications operator receives the number of the other party connected to the mobile phone 20 additionally, and forms a call channel of the mobile phone 20 using this (S209).

The control unit 130 of the ACR device 100 enters the standby mode after transmitting the DTMF signal to the mobile phone 20 to prevent current consumption by the ACR device 100 (S211). Finally, when the call with the other party ends, the mobile phone 20 enters the standby mode without attempting communication with the ACR device 100 (S212).

4 shows a flowchart of an operation sequence of the controller 130.

First, when the user connects the ACR device 100 to the data communication terminal 21 on the cellular phone 20 (S300), the display unit 170 provided in the ACR device 100 is turned on and emits light (S310). ). Next, when the switch 140 is pressed (S320), the ACR device 100 enters the standby mode and stops driving of the display unit 170 (S330). Finally, when the user presses the switch 140 again (S340), the controller 130 accommodated in the ACR device 100 wakes up to wake up from the standby mode, and the display unit 170 is operated again to operate the ACR device. Indicates that 100 is operating.

5 is a flowchart illustrating a method in which the ACR device 100 according to the present invention is driven according to a waiting time.

The waiting time T1 means a time when the ACR device 100 enters the standby mode when a key value is not input to the ACR device 100 according to the present invention. When the user makes a call, when the user turns on the ACR device 100 with the intention of using the designated carrier number, enters the other party's telephone number and does not make a call, or cancels the use of the attached carrier number. The user may forget to power off the ACR device 100. The waiting time is set using a key (not shown) provided in the mobile phone 20, and the order thereof is as follows.

First, the mobile phone 20 and the ACR device 100 are in an operating mode in which communication is possible, that is, a state in which the display unit 170 provided in the ACR apparatus 100 emits light (S410), and the display unit 170 emits light. If you do, you can perform the wait time setting. Next, the controller 130 determines whether a key input is generated in the mobile phone 20 (S420). If the key input does not occur within the waiting time T1, the controller 130 releases the operation mode and displays the display unit 170. ) Off (S430), otherwise, maintain the operation mode (S450).

However, even if the waiting time T1 is exceeded, the controller 130 wakes up by the user selecting the switch 140, and when the user selects the switch 140 (S440), the controller 130 wakes up. In operation S410, the display unit 170 provided in the ACR device 100 is driven again to emit light (S410), and the waiting time T1 is counted again.

6 is a flowchart illustrating a method for setting a waiting time by an ACR device according to the present invention.

First, the user connects the ACR device 100 to the data connection terminal 21 of the mobile phone 20 or presses the switch 140 to switch the ACR device 100 to the operation mode. At this time, the display unit 170 is turned on to emit light (S500). Next, the user sets the waiting time using the key provided in the mobile phone 20 (S510). Setting of the waiting time follows the procedure described below.

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For example, the keys of the mobile phone 20 are input in the order of "# + 0 * + 0 + # + T + call key".

Here, T means waiting time and the unit is second (SECOND) or minute (MINUTE).

Here, if #, 0, *, 0, # are sequentially input, the key value of the input key is provided to the controller 130, and the controller 130 recognizes this as a waiting time setting code. The controller 130 determines the number input after #, 0, *, 0, # as a waiting time and stores it in the ROM 150 (S520). At this time, the control unit 130 determines that the input of the waiting time is completed when the call key of the mobile phone 20 is pressed, and after the call key of the mobile phone 20 is pressed, the waiting time ROM 150 ). Finally, the ACR 100 applies the standby time set by the mobile phone as a reference for switching between the operation mode and the standby mode (S530).

The present invention is applied to the ACR device provided by the telecommunications carrier, and minimizes the power consumption of the mobile phone.

1 is a view showing a manner in which an ACR device and a mobile phone are connected according to the present invention;

2 is a block diagram of an ACR device according to an embodiment of the present invention;

3 is a flowchart illustrating a method of operating an ACR device according to the present invention;

4 is a flowchart of an operation sequence of a control unit;

5 is a flowchart illustrating a method of driving an ACR device according to a waiting time according to the present invention; and

6 is a flowchart illustrating a method for setting a waiting time by an ACR device according to the present invention.

* Description of the symbols for the main parts of the drawings *

100: ACR device 101: case

110: connector 120: interface unit

130 control unit 140 switch

150: Romans 160: Ram

170: display unit

Claims (8)

An ACR device connected to a data connection terminal of a cellular phone to receive a power source of a battery for driving the cellular phone and a key value of a key selected by the cellular phone, One side of the case is provided with a switching switch, the standby mode to cut off the communication between the mobile phone and the ACR device each time the switching switch is pressed, and the operation mode in which the communication between the mobile phone and the ACR device is maintained And informing the user of an operation state of the ACR device through a display device that is lit when in the operation mode. One side is accommodated in the case where the switch is arranged, An interface unit connected to a data connection terminal of a mobile phone to receive battery power of the mobile phone and to receive a key value of a key selected from the mobile phone; A memory including an access number of a specified communication service provider and a card number; And Obtaining a call target phone number by obtaining a key value of a key selected from the mobile phone, storing the obtained call target telephone number in the memory, and accessing an access number of a predetermined communication operator previously stored in the memory through the data connection terminal; Send it to a cell phone and the cell phone automatically dials up, When the mobile phone is dialed up and connected to the access number of the separate telecommunications operator, it generates a DTMF signal for the call target phone number, and provides the same to the mobile phone so that the mobile phone accesses the call target phone number. And a control unit for alternately selecting a standby mode and an operation mode each time the switch is selected. The method of claim 2, Is provided in the case, And a display unit which blinks when the ACR device is in the operation mode while the mobile phone and the ACR device are connected to each other. The method of claim 2, The control unit, And entering the standby mode when the key value is not provided from the mobile phone within a preset waiting time. The method of claim 4, wherein The waiting time is, ACR device for a mobile phone, characterized in that it is set by a special character key, and a numeric key selected from the mobile phone. delete delete The method of claim 2, Further comprising a display unit which is turned on in the operation mode, The control unit, And turning off the display unit in the standby mode.

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