KR100584440B1 - Mobile comunication terminal control method for flash light - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a control method of a portable terminal for a flash light.

I. The technical problem to be solved by the invention

The present invention provides a control method of a portable terminal for a flash light to be able to use the backlight of the portable terminal to always carry with the flash light function to cope with the night situation through the flash light anytime and anywhere.

All. Summary of Solution of the Invention

The method of the present invention includes a navigation key including a backlight light emitting diode outside the folder to enable input of a key even when the folder is closed, the control method for a fresh light of a portable terminal in which the folder is rotatable. Detecting whether a numeric key or a letter key is input while the folder is opened or the folder is opened in the standby state, and when the numeric key or letter key is input while the folder is opened or the folder is opened. And performing a backlight function through a backlight LED of a keypad; detecting whether the navigation key has been input for a preset time if the folder is not opened; and if the navigation key is input for a preset time, Through the backlight's LED And a process of performing a flash light function.

la. Important uses of the invention

The portable terminal can be used as a flash light.

Flash Light, Backlight, Handheld Terminal

Description

Control method of portable terminal for flash light {MOBILE COMUNICATION TERMINAL CONTROL METHOD FOR FLASH LIGHT}

1 is a view showing the configuration of a portable terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a control method of a portable terminal for a flash light according to an embodiment of the present invention.

3 is an exemplary view showing a portable terminal for a flash light according to an embodiment of the present invention.

4 is an exemplary view showing a portable terminal of a navigation key including a service indicator in FIG.

*** Explanation of symbols for main parts of drawing ***

10: portable terminal 11: control unit

21: RF unit 23: data processing unit

25: audio processor 27: keypad

28: memory 29: folder

50: DC / DC converter 60: backlight

70: display unit 27a: navigation keys

27b: service indicator

The present invention relates to a control method of a portable terminal for a flash light, and more particularly, to a portable terminal for a flash light that can be used as a flash light by controlling a current applied to a backlight of a navigation key located outside the portable terminal. It relates to a control method of.

In general, a portable terminal has a backlight on a keypad or a display unit so that the user can see the position of the keypad and the information displayed on the display unit by illuminating the light by operating the backlight so that the user can use the terminal at night.

Recently, since the portable terminal is not only used as a voice call but has been developed to enable wireless communication, the mobile terminal has been provided with a navigation key to facilitate the use of the wireless communication. It is also equipped with a backlight for convenient use at night.

The backlight of the portable terminal is used to find an object at night, wherein the brightness of the backlight is lower than that of a flashlight (flash light), so the flashlight finds an object during sudden power failure or at night. There was a problem to use as.

In addition, it is also difficult to carry the flashlight at all times because of the problems described above, and it is also rare to carry the problem with the problem that it is difficult to carry.

Therefore, there is a need to respond to the night situation through the flashlight anytime, anywhere by adopting the flashlight function in a portable terminal that is always carried.

Accordingly, the present invention has been made in view of the above necessity, by using a backlight of a navigation key located outside of a portable terminal which is always carried in a dark place such as at night by using a backlight of a navigation key as a flashlight function. It is an object of the present invention to provide a control method of a portable terminal for a flash light that can be used.

The present invention for achieving the above object is provided with a navigation key including a backlight light emitting diode on the outside of the folder to enable the input of the key even when the folder is closed, the folder for the flash light of the portable terminal rotatable A control method comprising: detecting whether a folder is opened or a numeric key or a letter key is input while the folder is open in a standby state, and a numeric key or the like when the folder is opened or the folder is opened. Performing a backlight function through a backlight light emitting diode of a display unit and a keypad when a character key is input; detecting whether the navigation key has been input for a preset time if the folder is not opened; Back while the navigation key is pressed Through site-emitting diode it is characterized in that it comprises the step of performing a flash write function.

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

In the following description specific details are set forth in order to provide a more general understanding of the invention. It will be apparent to one of ordinary skill in the art that the present invention may be readily practiced without these specific details and also by their modifications.

In the following description, the first current control signal is used as a current control signal of a backlight light emitting diode (hereinafter, referred to as 'LED') for the backlight light function. In addition, the second current control signal is used as a current control signal of the backlight LED for the flash light function.

1 is a diagram illustrating a configuration of a portable terminal according to an embodiment of the present invention.

Referring to FIG. 1, the RF unit 21 performs communication of the portable terminal 10. The RF unit 21 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal.

The data processor 23 includes a transmitter for encoding and modulating the transmitted signal and a receiver for demodulating and decoding the received signal. That is, the data processor 23 may include a modem and a codec.

The audio processor 25 plays a function of reproducing the received audio signal output from the data processor 23 or transmitting the transmitted audio signal generated from the microphone MIC to the data processor 23.

The keypad 27 has keys for inputting numeric and text information and function keys for setting various functions. In addition, the keypad 27 may include a navigation key, a flash on key, a flash off key, and the like according to an embodiment of the present invention.

The memory 28 may be composed of program memory and data memories. The program memory stores programs for controlling a general operation of the portable terminal 10. In addition, the data memory temporarily stores data generated during the execution of the programs.

The controller 11 performs a function of controlling the overall operation of the portable terminal 10. In addition, the controller 11 may include the data processor 23. In addition, the control unit 11 receives the key data generated by the key input corresponding to the flash on / off key according to an embodiment of the present invention according to the first current control signal for the backlight function, the second for the flash light function Outputting a current control signal and at the same time outputs the on / off signal (HIGH / LOW) of the backlight LED, and controls the overall operation according to the backlight function or the flash light function by the backlight LED.

The DC / DC converter 50 outputs an on / off signal of a backlight LED for converting the current intensity according to the first current control signal or the second current control signal of the control unit 11 to backlight or flash light. That is, according to an exemplary embodiment of the present invention, the first current control signal is applied to output an on signal of a backlight LED of low current, and the second current control signal is applied to output an on signal of the backlight LED of high current. .

The backlight unit 60 is provided with a predetermined color (R (red), G (green), B (blue)) backlight LED, the display unit 70 and the keypad 27 by the on / off signal of the backlight LED of the low current Backlit. In addition, according to an embodiment of the present invention, the backlight unit 60 receives the applied current of the backlight LED having a high current and flashes the light through the backlight LED of the display unit 70 and the navigation key.

The display unit 70 displays messages generated during program execution under the control of the control unit 11. In addition, the display unit 70 displays an image signal output from an image processor (not shown) in a camera photographing mode on a screen, and displays user data output from the controller 11. In addition, the display unit 70 is backlit by the backlight unit 60 when the backlight function is used, and is flashed by the backlight unit 60 when the flash light function is used according to an embodiment of the present invention. In this case, the display unit 70 may use an LCD. In this case, the display unit 70 may include an LCD controller, a memory capable of storing image data, and an LCD display device. In this case, when the LCD is implemented in a touch screen manner, the keypad 27 and the LCD may be input units.

Looking at the operation of the portable terminal 10 with reference to FIG. 1, when the user performs a dialing operation through the keypad 27 when the call is set, and the transmission mode is set, the control unit 11 detects this and the dial received through the data processor 23 After processing the information is converted into an RF signal through the RF unit 21 and output. Thereafter, when the other subscriber generates the response signal, the counter subscriber detects it through the RF unit 21 and the data processor 23. Thereafter, a user establishes a voice call path through the audio processor 25 to perform a communication function. In addition, in the incoming mode, the controller 11 detects the incoming mode through the data processor 23 and generates a ring signal through the audio processor 25. Thereafter, when the user responds, the controller 11 detects this, and a voice call path is formed through the audio processor 25 to perform a communication function. In the outgoing and incoming modes, voice communication is described as an example, but a data communication function for communicating packet data and image data in addition to the voice communication may be performed. In addition, when performing a standby mode or text communication, the controller 11 displays text data processed through the data processor 23 on the display 70.

Looking at the control process of the portable terminal 10 for the flash light as described above, if the folder is opened or the key input of the keypad 27 is a simple numeric key or a character input, the control unit 11 according to the first backlight so that the cap 27 and the display unit 70 A backlight LED on signal is applied to the DC / DC converter 50 together with the current control signal.

Accordingly, the DC / DC converter 50 applies a low current backlight LED on signal to the backlight unit 60, and the backlight unit 60 turns on the backlight LED to backlight the display unit 70 and the keypad 27.

On the other hand, the controller 11 applies the backlight LED on signal to the DC / DC converter 50 together with a second current control signal when a key input corresponding to the flash light on occurs.

Accordingly, the DC / DC converter 50 applies a high current backlight LED on signal to the backlight unit 60, and the backlight unit 60 turns on the backlight LED so that the backlight LED is flashed through the display unit 70 and the keypad 27. .

2 is a flowchart illustrating a method of controlling a portable terminal for a flash light according to an embodiment of the present invention, and FIG. 3 is an exemplary view illustrating a portable terminal for a flash light according to an embodiment of the present invention.

2 and 3, first, the portable terminal 10 to which the present invention is applied, as shown in FIG. 3A, allows the navigation key 27a to be input even when the folder 29 is closed. The key 27a is located outside the folder 29.

In addition, the folder 29 may be rotated 360 ° around the navigation key 27a, and thus the display unit 70 may be positioned on the front surface as shown in FIG. 4 after opening the folder 29 as shown in FIG. In addition, the backlight LED of the navigation key 27a is provided with three colors (R, G, B) of the LED, the color is changed according to the service state of the portable terminal 10 and the backlight of the navigation key 27a.

The portable terminal 10 is powered on in step 211 and is in standby mode in step 212. In step 213, the portable terminal 10 detects whether a numeric input, a text input, or a folder is opened through the keypad 27 according to a user's key input.

For example, assume that the numeric key '3' of the keypad 27 is input. At this time, the control unit 11 senses that the numeric key '3' is input and applies a first current control signal to the DC / DC converter 50 to downconvert the backlight LED on signal and a predetermined level of current to a low current.

Herein, the control unit 11 applies a signal as shown in Table 1 below to the three-color backlight LED as the backlight LED on signal.

Here, '1' of the R, G and B means an on signal of the backlight LED, and '0' of the R, G and B means an off signal of the backlight LED.

The DC / DC converter 50 receiving the backlight LED on signal shown in Table 1 applies a low current to the backlight LEDs of R, G, and B corresponding to the on signal of the backlight LED by the first current control signal.

Thus, in step 214, the keypad 27 and the display unit 70 are backlit in color according to the on signal of the backlight LED.

On the other hand, if it is detected in step 213 that the number input through the keypad 27, character input or folder is not opened, the control unit 11 detects whether the navigation key 27a for performing the flash light function is input for a predetermined time in step 215.

Here, it is assumed that the navigation key 27a is a flash light on key having a flash light function.

As a result of the sensing, when the navigation key 27a is input, the controller 11 performs a flash light function in step 216.

That is, the controller 11 applies an ON signal of the backlight LED so that all of the R, G, and B of the backlight LED are turned on, and outputs a second current control signal for upconverting a predetermined level of current to a high current to the DC / DC converter 50. do.

Accordingly, the DC / DC converter 50 applies a high current to the backlight unit 60 by the second current control signal such that the backlight LEDs of the R, G, and B functions as a flash light function, thereby displaying the display unit 70 and the navigation key 27a. The backlight LED is flashlighted.

When the above-described flash light service is provided, a service indicator 27b is provided in the center of the navigation key 27a as shown in FIG. 4 and the color of the portable terminal 10 is different depending on the service state of the portable terminal 10. When the status is serviced and the flash light function is used, the flash light function may be serviced through the service indicator 27b.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

 As described in detail above, the present invention provides a flashlight service by using a backlight LED that backlights a navigation key located outside the portable terminal, thereby enabling the flashlight function to be used anytime and anywhere through a portable terminal. There is.

In addition, by using the backlight LED to service the flash light function, there is an advantage that does not require additional components for the flash light function.

In addition, by selecting a flashlight function by operating an external navigation key and servicing the flashlight function by selecting the flashlight function, the convenience of the user can be increased.

Claims (7)

delete delete In the control method for a flash light of a portable terminal provided with a navigation key including a backlight light emitting diode to the outside of the folder to enable the input of the key even when the folder is closed, Detecting whether a number key or a letter key is input when the folder is opened or the folder is opened while the power is on; Performing a backlight function through a backlight light emitting diode of a display unit and a keypad when a numeric key or a character key is input while the folder is opened or the folder is opened; If the folder is not opened, detecting whether the navigation key has been input for a preset time; And when the navigation key is input for a preset time, performing a flash light function through a backlight LED of the navigation key. The method of claim 3, wherein the navigation key comprises a service indicator indicating a service state of the portable terminal at the center of the navigation key. The method of claim 3, wherein the navigation key is flashed through a service indicator.        The method of claim 3,        Performing a flash light function through a backlight light emitting diode of the display unit and the navigation key when the navigation key is input for a predetermined time while the folder is rotated about the navigation key and the display unit is exposed outside the folder and closed. Control method of a portable terminal for a flash light, characterized in that it further comprises.        The method of claim 3,        And if the navigation key is input for a predetermined time while the folder is open, performing a flash light function through a backlight light emitting diode of the display unit and the keypad. Way.

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