KR20060097856A - Wireless communication terminal and its method for providing function of controlling volume using gyroscope - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a wireless communication terminal having a volume control function by measuring the angular velocity and a method thereof.

2. The technical problem to be solved by the invention

An object of the present invention is to provide a wireless communication terminal having a volume control function by measuring an angular velocity and a method thereof for adjusting a call volume using an angular speedometer capable of measuring angular displacement and angular velocity in a wireless communication terminal. has exist.

3. Summary of the Solution of the Invention

The present invention provides a wireless communication terminal comprising: an angular velocity measuring means for measuring an angular displacement and an angular velocity of the wireless communication terminal and outputting a corresponding load signal; Control means for detecting a movement of the wireless communication terminal from a signal received from the angular velocity measuring means during a call, and recognizing the detected movement as a corresponding volume control signal according to its size and direction; And output means for outputting call voice data at a corresponding volume according to the call volume adjusted by the control means.

4. Important uses of the invention

The present invention is used in a wireless communication terminal.

Wireless communication terminal, angular displacement, angular speed, volume control, universal input / output port (GPIO)

Description

Wireless communication terminal and its method for controlling volume by measuring angular velocity {Wireless communication terminal and its method for providing function of controlling volume using gyroscope}

1 is a configuration diagram of an embodiment of a wireless communication terminal having a volume control function by measuring the angular velocity according to the present invention;

Figure 2 is a detailed configuration diagram of an embodiment of the angular velocity measuring device of the wireless communication terminal having a volume control function by measuring the angular velocity in accordance with the present invention,

3 is a diagram illustrating an embodiment of a volume adjusting method by measuring an angular velocity in a wireless communication terminal according to the present invention;

4 is a flowchart illustrating a volume control method by accelerometer measurement in a wireless communication terminal according to the present invention.

* Explanation of symbols on the main parts of the drawing

11: wireless transmission and reception device 12: central processing unit

13: codec 14: storage device

15: audio output device (speaker) 16: display device (LCD)

17: input device (keypad) 18: voice input device (microphone)

19: angular velocity measuring device

The present invention relates to a wireless communication terminal having a volume control function by measuring the angular velocity and a method thereof, and more particularly, to adjust a call volume using an angometer which can measure angular displacement and angular velocity in a wireless communication terminal. The present invention relates to a wireless communication terminal having a volume control function by measuring an angular velocity and a method thereof.

In the present invention, a wireless communication terminal is a mobile communication terminal, a personal mobile communication terminal (PCS), a personal digital terminal (PDA), a smart phone, a next generation mobile communication terminal (IMT-2000), wireless communication while carrying an individual such as a wireless LAN terminal Say this is possible terminal.

In general, as a method of adjusting a call volume (volume) in the wireless communication terminal, there is a method using a side key provided on the side of the wireless communication terminal. That is, the user increases or decreases the call volume by pressing an up key or a down key provided on the side of the wireless communication terminal. However, the side key is not easy to press the side key during the call because the size of the button is very small due to the characteristics provided on the side of the wireless communication terminal.

On the other hand, recently, a wireless communication terminal equipped with a very small digital camera has become very popular, gyroscope has been applied to a wireless communication terminal, which has been used to prevent camera shake, which has been applied to a camcorder or a digital camera.

Therefore, it would be very convenient to implement the anti-shake function when driving the camera function using the angular speedometer provided in the wireless communication terminal, and to adjust the call volume according to the movement (angular velocity) of the wireless communication terminal during the call.

The present invention has been proposed to meet the above requirements, and has a volume control function by measuring the angular velocity to adjust the volume of a call using an angular speedometer that can measure angular displacement and angular velocity in a wireless communication terminal. It is an object of the present invention to provide a wireless communication terminal and a method thereof.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

An apparatus of the present invention for achieving the above object, the wireless communication terminal, the angular velocity measuring means for measuring the angular displacement and angular velocity of the wireless communication terminal to output a corresponding signal; Control means for sensing a movement of the wireless communication terminal from a signal received from the angular velocity measuring means during a call, and recognizing the detected movement as a corresponding volume control signal according to its size and direction; And output means for outputting call voice data at a corresponding volume according to the call volume adjusted by the control means.

On the other hand, the method of the present invention, in the volume control method by measuring the angular velocity in a wireless communication terminal, the step of detecting the movement of the wireless communication terminal by measuring the angular displacement and the angular velocity of the wireless communication terminal as the call is connected; Recognizing the detected motion as a corresponding volume control signal according to the direction when the detected motion is greater than or equal to a preset value; And adjusting the call volume according to the recognized volume control signal.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration of an embodiment of a wireless communication terminal having a volume control function by measuring the angular velocity in accordance with the present invention.

As shown in Figure 1, the wireless communication terminal having a volume control function by the angular velocity measurement according to the present invention, the wireless transmission and reception apparatus 11, the central processing unit (MSM) 12, codec (CODEC) 13 ), Storage device 14, voice output device (speaker) 15, display device (LCD) 16, input device (keypad) 17, voice input device (microphone) 18, and angular velocity measuring device 3, it has a function of recognizing an operation of moving in a specific direction (for example, up / down or left / right) as a volume control signal as shown in FIG.

The wireless transmission and reception apparatus 11 transmits and receives a signal wirelessly through an antenna.

The central processing unit (MSM) 12 drives and controls the wireless communication terminal, and in particular, recognizes a signal received from the angular velocity measuring device 19 as a volume control signal during a call, and outputs a voice output device according to the recognition result. (Speaker) 15 adjusts the volume of the audio signal output. To this end, the central processing unit (MSM) 12 is assigned a general purpose input and output port (GPIO) for receiving a signal from the angular velocity measuring device (19). The detailed input value will be described later with reference to FIG. 2.

The codec 13 converts a signal received from the wireless transceiver 11 into voice under the control of the central processing unit 12, and outputs the signal to a voice output device (speaker) 15, The voice received from the input device (microphone) 18 is converted into a signal and transmitted to the central processing unit 12 so as to be transmitted through the wireless transmitting and receiving device 11.

The storage device 14 stores a program (code, firmware) for driving the wireless communication terminal.

The voice output device (speaker) 15 outputs the voice received from the codec 13, and the voice input device (microphone) 18 receives the voice to the codec 13 To pass. At this time, the voice (call voice data) output to the voice output device (speaker) 15 is adjusted according to the control of the central processing unit (MSM) 12 (call volume).

The display device (LCD) 16 outputs a screen according to the control of the CPU 12.

The input device (keypad) 17 receives a menu selection signal including a telephone number, a call connection request signal, and the like through a button.

The angular velocity measuring device 19 is driven by the control of the central processing unit (MSM) 12, in particular the movement of the wireless communication terminal (e.g., left / right or up / down) during the call, i.e. The displacement and the angular velocity are measured to output a corresponding signal to the general purpose input / output port (GPIO), which is pre-assigned to the central processing unit (MSM) 12. A more detailed configuration and an operation process of the angular velocity measuring device 19 will be described with reference to FIG. 2.

As shown in FIG. 2, the angular velocity measuring device 19 according to the present invention includes an angular velocity meter 21, a differential amplifier 22, a first comparator 23, and a second comparator 24.

The tachometer 21 outputs a corresponding voltage value according to the movement of the wireless communication terminal. That is, if the movement of the wireless communication terminal sensed by the tachometer 21 is a predetermined one direction (for example, left or down, volume down), a positive value is set to V1 and a negative value is set to V2. Outputs a value, and if the movement of the wireless communication terminal sensed by the tachometer 21 is in the other direction (eg, right or up, volume up), the value is set to (-) value as V1, and to V2. Print a positive value.

Meanwhile, outputs V1 and V2 of the tachometer 21 are input to the differential amplifier 22, and the differential amplifier 22 receives a value obtained by the difference between the inputs of the two signals V1 and V2. 23) and the second comparator 24.

Then, the first comparator 23 compares the preset reference voltage with the input signal from the differential amplifier 22, and if the input signal from the differential amplifier 22 is higher than the reference voltage, the CPU 12 Signal is output to the volume up detection port ("Keysen_x"). Then, the CPU 12 recognizes the signal received from the angular velocity measuring device 19 as the volume up signal through the volume up detection port ("Keysen_x") and sends it to the voice output device (speaker) 15. Raise the volume of the output audio signal.

Meanwhile, the second comparator 24 compares a preset reference voltage with an input signal from the differential amplifier 22, and if the input signal from the differential amplifier 22 is lower than the reference voltage, the central processing unit ( A signal is output to the volume down detection port ("Keysen_y") of 12). Then, the CPU 12 recognizes the signal received from the angular velocity measuring device 19 as a volume down signal through the volume down detection port ("Keysen_y"), and sends it to the voice output device (speaker) 15. Reduce the volume of the audio signal output.

At this time, the values output from the first comparator 23 and the second comparator 24 are outputted above and below the reference voltage at a value of 0 V or more, and in the case of a value lower than the reference voltage, a pull-up ( In a pull up operation, a low voltage may be a problem, so the output of the comparator may be amplified and input to the corresponding general-purpose input / output port (GPIO) of the central processing unit (MSM).

Meanwhile, mapping between the volume up detection port ("Keysen_x") and the volume down detection port ("Keysen_y") of the central processing unit (GPIO) and the direction of movement (up, down, left, right) may be performed by user setting. have.

In addition, the angular velocity measuring device 19 is configured to recognize only a movement of a predetermined size or more as a volume control signal in order not to recognize a general motion (movement during walking, etc.) as a volume control signal.

Referring to Figure 4 will be described once again the overall operating process of the present invention.

4 is a flowchart illustrating a volume control method by accelerometer measurement in a wireless communication terminal according to the present invention.

First, as the call is connected (401), by measuring the angular displacement and the angular velocity to detect the movement (size, direction) of the wireless communication terminal (402).

Check whether the detected motion is greater than or equal to the preset value (403), and if the detected motion is less than or equal to the preset value, proceed to step 402 and repeat the process. The detected motion is greater than or equal to the preset value. In step 404, the detected motion is recognized as a corresponding volume control signal according to the direction.

Then, after adjusting the call volume (volume) output to the speaker according to the recognized volume control signal (405), the process proceeds to "402" and repeats.

The operation is terminated when the call is terminated in any of the processes in the process of "402" to "405".

On the other hand, in another embodiment of the present invention, if the user detects more than a predetermined number of movements (for example, moving downward three times) while not in a call, an operation such as switching to a vibration mode may be further performed.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

As described above, the present invention, by adjusting the volume of the call using an angular speedometer that can measure the angular displacement and angular velocity in the wireless communication terminal, so that the volume can be conveniently adjusted without the inconvenience of pressing the volume control button during the call. It works.

Claims (5)

In a wireless communication terminal, Angular velocity measuring means for measuring angular displacement and angular velocity of the wireless communication terminal and outputting the corresponding signal; Control means for detecting a movement of the wireless communication terminal from a signal received from the angular velocity measuring means during a call, and recognizing the detected movement as a corresponding volume control signal according to its size and direction; And Output means for outputting call voice data at a corresponding volume according to the call volume adjusted by the control means Wireless communication terminal having a volume control function by measuring the angular velocity comprising a. The method of claim 1, The control means, And a general purpose input / output port (GPIO) for receiving a signal from the angular velocity measuring means. The method according to claim 1 or 2, The control means, The wireless communication terminal having a volume control function by measuring the angular velocity, characterized in that for performing the function of setting the mapping between the direction of the movement and the volume control signal detected by the user input using the signal received from the angular velocity measuring means. . In the volume control method by measuring the angular velocity in a wireless communication terminal, Detecting the movement of the wireless communication terminal by measuring the angular displacement and the angular velocity of the wireless communication terminal as a call is connected; Recognizing the detected motion as a corresponding volume control signal according to the direction when the detected motion is greater than or equal to a preset value; And Adjusting a call volume according to the recognized volume control signal Volume control method by measuring the angular velocity in a wireless communication terminal comprising a The method of claim 4, wherein Setting a mapping between a movement direction of the wireless communication terminal and a volume control signal according to an input from a user Volume control method by measuring the angular velocity in a wireless communication terminal further comprising.

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