KR20030032695A - Method for saving the power in mobile phone - Google Patents

Abstract

PURPOSE: A power saving method for a mobile communication terminal is provided to minimize a battery power consumption of a terminal by setting a priority reception number required to be answered even at a low power state, switching to a power saving mode and controlling power applied to an LCD and a backlight according to a signal generation of the terminal. CONSTITUTION: A user inputs a caller ID to be received even at a low power state executed in a power saving mode and sets it as a PN(Priority Number)(S1). A battery capacity measuring module measures a battery capacity(S2) and a controller calculates an estimate usage time(S3). The controller discriminates whether the estimate usage time goes down to below a pre-set limit usage time(S4). If the estimate usage time is above the limit usage time, a normal mode operation state is maintained(S5). If the estimate usage time goes down to below the pre-set limit usage time, it is switched to a power saving mode operation and the power supply unit cuts off power applied to an LCD and a backlight of the mobile terminal(S6). The controller discriminates whether a signal is detected as the terminal is manipulated by the user according to the switched power saving mode(S7). If the terminal is manipulated, the power supply units turns on power applied to the LCD(S8). If, however, there is no terminal manipulation, the controller discriminates whether a call has been terminated through a signal detection by a radio frequency unit(S9). If a call signal has been terminated to the radio frequency unit and a signal is detected, a CID(Caller ID) is detected from the call signal, while if no call signal is terminated, it is terminated(S10). The controller discriminates whether the CID detected according to the power saving mode is identical to the pre-set PN(S11). If the CID is identical to the PN, a termination tone is outputted, while if the CID is not identical to the PN, it is terminated(S12).

Description

Method for saving power of mobile communication terminal {Method for saving the power in mobile phone}

The present invention relates to a power saving method of a mobile communication terminal, and more particularly, by adding a power saving mode to a mobile communication terminal, when a user's terminal operation or a call signal is not received during a power saving mode operation, a liquid crystal display (LCD) of the terminal. And a power saving method of a mobile communication terminal which turns off a power applied to a backlight and outputs a ringing tone only for a priority number set by a user to notify call reception.

In general, as the use of mobile communication terminals has become more common, users of mobile communication terminals have placed importance on terminal use time which is basically required in using a terminal.

Accordingly, in recent years, a high-capacity battery is developed in relation to a battery power that determines a terminal usage time for a long time of use of the terminal, or the terminal usage time can be increased by efficiently using the power by minimizing the power consumption in the terminal. Various power saving methods have been proposed.

Among these, in the power saving method performed in the mobile communication terminal, the power control method of the liquid crystal display which has the greatest battery consumption in the mobile communication terminal is widely used.

Patent application No. 1998-059054 (name of the invention: a power saving method of a mobile phone terminal) proposed as a power control method in a mobile communication terminal is a liquid crystal display of a terminal through a terminal operation or an incoming signal of a terminal user. The patent application No. 1999-0037341 (name of the invention: a mobile phone with a power saving function and its power saving method) reserves the on / off time with the real time clock of the terminal and automatically the terminal in the late time zone. The power of the terminal is turned off and the power of the terminal is controlled to turn on when the set time comes.

This method is performed to reduce power consumption under general terminal usage. In a special situation, if the terminal user must make a call on a specific telephone, the terminal user can effectively block the reception of an unimportant telephone. You need a way.

However, since the call reception control is not provided in the conventional method, it is important that the terminal user runs out of battery power because unnecessary battery power is consumed due to non-critical call reception other than a specific phone in a low power state. There was a problem that occurs when the phone can not answer.

In order to solve the above problems of the prior art, the present invention sets a threshold usage time calculated as a limited battery capacity required for a call in a mobile communication terminal and a priority reception number input by a user in a power saving mode. If the estimated usage time calculated by the battery capacity is less than the limit usage time, switch to the power saving mode to control the power of the liquid crystal display and the backlight, and output a ringing tone only for the call signal of the calling number corresponding to the set priority number. Its purpose is to reduce power consumption in a low power state and to respond to a received number first.

To this end, the present invention is a priority reception that can be received even in the power saving mode by the user in a mobile communication terminal with a power saving mode in which the power supply and call reception is controlled by setting the limit usage time calculated by the limit battery capacity required for the call. A priority number setting step of setting a number; A usage time determination step of determining whether an estimated usage time calculated by measuring a battery capacity in the terminal having the emergency reception number lowered below a set threshold usage time; And the power saving mode switching step of switching to the power saving mode operation when the estimated use time is less than the limit using time.

1 is a block diagram showing the internal configuration of a mobile communication terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a power saving process of a mobile communication terminal according to an embodiment of the present invention.

※ Explanation of code about main part of drawing ※

10: radio frequency unit 20: control unit

30: battery capacity measuring module 40: liquid crystal display

50: power supply unit 60: memory unit

70: key input unit 80: voice processing unit

90: microphone 100: speaker

Hereinafter, exemplary embodiments will be described with reference to the accompanying drawings.

The mobile communication terminal according to the present invention is configured as shown in Figure 1, the radio frequency unit 10 is divided into a transmitter and a receiver to convert a digital signal to process the frequency of the received radio communication band, and digital Signal processing associated with the transmission and reception of a radio frequency signal that converts a signal into a frequency signal for transmission over a wireless communication band is performed.

The controller 20 performs overall operation control of the mobile communication terminal. When the estimated use time calculated by the battery capacity measured by the battery capacity measuring module 30 falls below the set limit use time, the liquid crystal display unit ( 40) and the power applied to the backlight is turned off, and when the signal is generated by the user's operation of the terminal and reception of the radio signal through the radio frequency unit 10, a power saving mode for supplying power to the liquid crystal display 40 and the backlight is performed. Set it.

The power saving mode sets the limit usage time calculated by the limit battery capacity required for the call and the telephone number required for the call input by the terminal user to the priority number (hereinafter referred to as PN) first, and then the radio frequency. The control unit detects an originating number (Caller ID: hereinafter referred to as CID) of a call signal received by the unit 10 and sets a ring tone only for a call signal matching the set PN.

The power supply unit 50 applies a power required for using the mobile communication terminal from the mounted battery, and the terminal use time is determined according to the capacity of the mounted battery.

The battery capacity measuring module 30 measures the battery capacity of the power supply unit 50 after the terminal is used by the mobile communication terminal user and transmits the measured battery capacity to the control unit 20, thereby converting the battery capacity measured by the control unit 20 to be estimated. Calculate the usage time.

Memory unit 60 is a ROM (ROM) that stores the overall operating algorithm of the mobile communication terminal, the algorithm that is accessed during the operation of the terminal, the voice or short message data automatically sent to the terminal of the CID does not match the PN in the power saving mode; The RAM is configured to store voice data such as a ringing tone that is output to notify the terminal user of a call signal reception through the wireless frequency unit 10.

The liquid crystal display 70 displays a data processing process and a result of the controller 20.

The key input unit 70 transmits key data corresponding to the key selected by the user to control the operation of the mobile communication terminal.

The voice processing unit 80 may convert a digital signal or an analog conversion of a digital signal to output a voice call using the microphone 90 and the speaker 100 or the speaker 100 of voice data stored in the memory unit 60. Modulates and demodulates an audio signal.

In the power saving method of the mobile communication terminal according to the present invention using the mobile communication terminal configured as described above, as shown in FIG. 2, the limit usage time calculated by the limit battery capacity required for the call is set to supply power and call. A priority reception number setting step of setting a priority reception number that can be called even by the user in the power saving mode in the mobile communication terminal to which the controlled power saving mode is added; A usage time determination step of determining whether an estimated usage time calculated by measuring a battery capacity in the terminal having the emergency reception number dropped below a set threshold usage time; And the power saving mode switching step of switching to the power saving mode operation when the estimated usage time is less than the limit usage time.

The operation of the present invention will be described in detail with reference to the flowchart of FIG. 2.

In a mobile communication terminal in which a power saving mode with a limited usage time (Ti) calculated as a limit battery capacity required for a call is added, a user inputs a calling number to be received even in a low power state in which the power saving mode is executed and sets the PN. (S1).

As described above, the battery capacity measuring module 30 measures the battery capacity of the power supply unit 50 in the mobile communication terminal in which the PN is set (S2), and the estimated use time Te is calculated by the controller 20 through the measured battery capacity. (S3).

The control unit 20 of the terminal determines whether or not the estimated usage time Te calculated by this process falls below the set limit usage time Ti (S4).

If the estimated use time Te calculated as a result of the determination does not fall below the set limit use time Ti, the normal mode operation state is maintained (S5).

When the estimated use time Te calculated as a result of the determination decreases below the set limit use time Ti, power is applied to the liquid crystal display 40 and the backlight of the mobile communication terminal by switching to the power saving mode operation. OFF (S6).

According to the switched power saving mode, the control unit 20 of the terminal determines whether the user operates the terminal based on whether a signal generated by the terminal operation by the user is detected (S7).

As a result of the determination, when the user's terminal operation is performed, the power supplied from the power supply unit 50 to the liquid crystal display unit 40 of the terminal is turned on (S8).

After the power is applied to the liquid crystal display unit 40 or if there is no user terminal manipulation, the controller 20 of the terminal determines whether a call signal is received by detecting a signal through the radio frequency unit 10 (S9). ).

As a result of the determination, when the call signal is received by the radio frequency unit 10 and the signal is detected, the CID is detected from the incoming call signal, and the call signal is terminated when the call signal is not received (S10).

The controller 20 of the terminal determines whether the detected CID and the set PN match according to the power saving mode (S11).

If the determination result CID and PN match, the ringing tone is output through the speaker 100, and if the determination result CID and PN do not match, it ends (S12).

In another embodiment of the present invention, the CID and the PN matching determination step (S11) may be to automatically send a voice or short message indicating that the mobile terminal user can not answer the call for the CID that does not match.

As described above, the present invention adds a power saving mode to the mobile communication terminal, and sets a phone number that is required to be received even in a low power state of the battery as a reception number, and then at low power time as an estimated usage time calculated by battery capacity. By switching to the power saving mode, the power applied to the liquid crystal display and the backlight of the terminal in the low power state is controlled according to the signal generation of the terminal to minimize the battery consumption of the terminal and call the user with a ring tone only for the set priority number. By notifying the user, the terminal can be used even in a low power state, thereby providing an effect of answering an important call.

Claims (4)

Priority call number setting to set the priority reception number that can be called even in the power saving mode in the mobile communication terminal with the power saving mode in which the power supply and call reception are controlled by setting the limit usage time calculated by the limit battery capacity required for the call. Steps; A usage time determination step of determining whether an estimated usage time calculated by measuring a battery capacity in the terminal having the emergency reception number lowered below a set threshold usage time; And a power saving mode switching step of switching to the power saving mode operation when the estimated use time is less than the limit using time. The method of claim 1, The power saving mode switching step may include a signal generation determination step of turning off the power of the liquid crystal display unit and the backlight in the control unit of the terminal according to the power saving mode, and determining generation of a signal due to a user's terminal operation or call reception by signal detection; ; A power control step of turning on the power of the liquid crystal display unit when a signal of the determination result is detected and maintaining power off of the liquid crystal display unit and the backlight if a signal is not detected; And if the signal detected in the power control step is a call signal, determining whether or not the calling number of the call signal and the first receiving number match, and transmitting a ringing tone only when the call signal matches. How to save power in communication terminal. The method of claim 2, The ring tone sending step may further include a message automatic call step of automatically sending a voice or short message to the calling number indicating that the terminal user cannot make a call if the calling number and the first receiving number of the call signal do not match. Power saving method of a mobile communication terminal characterized in that. The method of claim 1, In the power saving mode, a threshold usage time calculated as a limited battery capacity required for a call and a telephone number required for a call input by the terminal user are set as a reception number, and a call signal received by the wireless frequency unit of the terminal is set. And a control unit configured to detect a caller number and output a ringing tone only for a call signal that matches the set priority number.