KR100844487B1 - Mobile for sending/receiving moving information and sending/receiving method thereof - Google Patents

Abstract

A portable terminal for transceiving moving information and a transceiving method using the terminal are provided to measure the movement information of a user by using an inertial measurement unit, and to transmit/receive the measured information, in order to convert the information into vibration or voice information. A sensor unit(110) includes an inertial measurement unit to measure periods and size of a user's movement. An encoding unit(120) changes movement information measured in the sensor unit into an electric signal. A transmitter(130) transmits the encoded signal. A receiver(210) receives the transmitted signal. A decoding unit(220) decodes the received signal. An output unit(230) changes the decoded signal into a vibration signal or a voice signal.

Description

Portable terminal for transmitting and receiving motion information and method for transmitting and receiving using same {Mobile for Sending / Receiving Moving Information and Sending / Receiving Method

The present invention relates to a portable terminal capable of accommodating user motion information and a method for transmitting and receiving motion information using the same, and more particularly, to measure user motion information using an inertial measurement device, and to transmit and receive such information. It relates to a portable terminal capable of converting it into vibration or voice information.

Recently, a mobile terminal such as a mobile communication terminal or a personal digital assistant is used a lot, the purpose of the mobile phone call or schedule management can be said to be the most fundamental function. The application range of the digital camera mounted on the portable terminal, watching satellite broadcasting, and playing games is increasing.

In addition, by adding a motion detector to such a portable terminal, it is possible to use the movement and tilting methods of the mobile phone itself without relying only on a keypad or touch screen made of buttons.

As a result, it is possible to control the portable terminal by operating a specific gesture without pressing a telephone number by using the keypad of the portable terminal. For example, shaking a portable terminal with a motion detector up and down twice deletes a spam call or spam message, and when the user draws a number with the portable terminal, the number is recognized as a speed dial and the phone is dialed. You can also shake your phone in karaoke to get the sound of a musical instrument like a tambourine or various beat boxes. In particular, when using online games or emoticons, if you draw 'O' with a portable terminal, you can say 'like' or 'dislike' if you draw an 'X'. It can have various functions such as selecting different music.

As described above, when the mobile terminal is equipped with a motion detector to operate a user's specific gesture, a function corresponding to the gesture is performed. However, such motion recognition-based input devices are limited to the use of games or simple menu scrolling. In the application of this application, the operation range of the motion sensor for detecting the user's motion and the combination of the gravity component according to the posture change of the device during the writing operation is bound to be limited. In addition, due to the characteristics of the mobile terminal itself, the screen display device has limitations in using motion information to be used as an application program of the mobile terminal mainly using visual information through a screen.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a first object of the present invention is to convert an operation of a user into data by combining an inertial measurement device with a transmitter-side portable mobile device.

A second object of the present invention is to accurately reproduce a signal for a user's operation by installing a vibrating element or a variable digital audio amplifier on the receiver side.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings.

A portable terminal capable of transmitting and receiving motion information according to the present invention includes a sensor unit including an inertial measurement device capable of measuring the size and period of a user's motion, by changing the acceleration information measured by the sensor into a signal suitable for communication. The main unit comprises an encoding unit, a transmission unit for transmitting and processing such an encoded signal, a receiving unit for receiving such a transmission signal, a decoding unit for decoding the received encoded signal, and an output unit for converting the decoded signal into a vibration signal or a voice signal. It is characterized by.

In particular, the encoder includes a low frequency filter.

In particular, the encoding unit includes a table of the user's motion information.

In particular, the decoding unit generates a vibration signal by using a lookup table or by reflecting characteristics of an operation signal.

In particular, the output unit reflects the number of motion signals to the magnitude of the amplitude, or the magnitude of the amplitude of the motion signal to the amplitude of vibration.

In particular, the device for generating a vibration signal from the operation signal is a vibration motor, ultrasonic motor, solenoid or piezoelectric element.

Transmitting and receiving method of a portable terminal according to the present invention comprises the steps of converting the magnitude and period of the operation into an electrical signal (S10); Removing noise with respect to the electrical signal (S20); Encoding the signal from which the noise is removed (S30); Transmitting the encoded signal through the antenna (S40); Receiving the transmitted signal independently from a voice signal of a first portable terminal and a second portable terminal at a receiver (S50); Decoding the received signal (S60); And converting the decoded signal into a vibration signal using a PWM method (S70).

In particular, the PWM method determines the output voltage (S100); Performing pulse width modulation on a signal having an output voltage determined (S200); And amplifying the pulse width modulated signal in the motor driver (S300); and outputting a vibration signal suitable for the signal amplified in the motor driver (S400).

In particular, the output voltage in the step of determining the output voltage has a value of 1 ~ 5V.

Transmitting and receiving method of a portable terminal according to the present invention comprises the steps of converting the magnitude and period of the operation into an electrical signal (S10); Removing noise with respect to the electrical signal (S20); Encoding the signal from which the noise has been removed (S30); Transmitting the encoded signal through the antenna (S40); Receiving the transmitted signal independently from a voice signal of a first portable terminal and a second portable terminal at a receiver (S50); Decoding the received signal (S60); and inserting the decoded signal into a variable gain digital audio amplifier and converting it into a voice signal (S70).

When the portable terminal for transmitting and receiving motion information according to the present invention is used, it is possible to accurately reproduce the motion information of the user in the portable terminal of the other party in addition to the normal signal transmitted through the portable terminal called the user's voice.

In addition, it is possible to implement a variety of vibration information as a function of a portable terminal using a look-up table.

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the present invention.

1 is a perspective view showing a user generating a vibration signal using the first portable terminal 100 according to the present invention. As shown in FIG. 1, when the user shakes the first portable terminal 100 back and forth, an inertial measurement device (not shown) built in the first portable terminal 100 of the user recognizes this. At this time, the vibration signal input by the user may proceed with a certain period, or may be mechanically input using any vibration element.

In the method of inputting such an operation signal, a table capable of analyzing the operation of the user is provided in advance in the portable terminal of the user. Using such a table, it is possible not only to measure the information of the user's motion with an acceleration sensor but also to convert it into another new signal.

2 is a block diagram showing the configuration of a portable terminal for transmitting and receiving operation information according to the present invention. As shown in Figure 2, the sensor unit 110 that can accommodate the user's operation information, the encoding unit 120 for changing the acceleration information measured by the sensor unit 110 to a signal suitable for communication, such encoding The receiving unit 210 for transmitting the received signal through the antenna 140 of the second portable terminal 200 via the antenna 140 of the transmitting unit 130 as described above, and decoding the received signal. Decoder 220 is preferably composed of an output unit 230 for changing the vibration signal decoded as described above. First, the inertial measurement unit is preferably located in the sensor unit 110 that can accommodate the user's operation information. The operation of the sensor unit 110 will be described in detail.

Recently, due to the advance of MEMS technology, inertial measuring device has begun to combine products with acceleration sensor and angular velocity sensor. Acceleration sensors are used here to measure linear acceleration and to measure the acceleration that occurs when an object moves. On the other hand, the tachometer is used to measure the rotational speed of the rotating body fixed to the rotation axis. Although the acceleration sensor produces the linear acceleration as a result and the angular velocity sensor produces the rotational speed as the result, the operation characteristics of the target to be measured are also different.

However, the movement of the first portable terminal 100 for transmitting and receiving motion information according to the present invention is not independently analyzed, such as a linear or rotational movement, it has a complex aspect. However, in the case of the inertial measurement apparatus according to the present invention, the movement of the first portable terminal 100 is not required to accurately measure information, but is sufficient to be converted to a signal. Therefore, the inertial measurement device located in the sensor unit 110 may be an acceleration sensor or an angular velocity sensor. Hereinafter, focusing on the measurement result of the acceleration measurement sensor will be described in detail.

3A is a graph showing a vibration signal displayed when the first portable terminal 100 vibrates once. As shown in FIG. 3A, the x-axis is the axis of time and the y-axis represents the absolute value of acceleration. When the user first moves the first portable terminal 100 forward, the sensor unit 110 reflects the movement and detects the movement with respect to the vibration having a small vibration width. And when the portable mobile is vibrated with a larger vibration width than that, the vibration signal recognized by the acceleration sensor appears with a larger amplitude.

Such an acceleration sensor is a device for detecting a change in speed per unit time. In the past, a mechanical sensor is used, but now, a product using a semiconductor type is mainstream. The advantage of the semiconductor type is that it is possible to detect small size and precisely, and is used in a mobile phone, for example, to measure tilt and to correct a screen display, and to be used as a pedometer from a shaking state when moving.

Details of the measurement principle of such an acceleration sensor are obvious to those skilled in the art, and thus detailed descriptions thereof are weak.

3b, 3c, and 3d show the results of measuring the magnitude of the acceleration of the vibration information measuring apparatus according to the present invention. 3B is a graph showing a change in acceleration when the user of the first portable terminal 100 shakes the first portable terminal 100 twice in succession. Figure 3c shows the change in acceleration magnitude of the accelerometer for first shaking twice and then shaking once. At such a time interval, the change of the vibration signal can be utilized as one data. Figure 3d also shows a graph of the actual acceleration signal corresponding to several shakes at various specific time intervals.

In this way, the acceleration signal is converted into an electrical signal in the acceleration sensor. It is the D / A converter and the microprocessor that change the analog data. The encoding unit 120 is where the D / A converter and the microprocessor are located.

In addition, the microprocessor preferably includes a low frequency filter. The low frequency filter serves to remove the high frequency signal when the above-mentioned vibration signal and the high frequency signal are mixed and input. Thus, the high frequency signal is not included in the vibration signals generated by the first and second portable terminals 100 and 200, so that accurate vibration information is reproduced.

In the case of a portable terminal for transmitting and receiving operation information according to the present invention, it is preferable to include a memory in order to assist the function of such a microprocessor. When the memory is built in, the vibration information of the user is stored in the memory and the signal stored in the memory is subjected to the process of encoding. The encoded vibration signal is transmitted to the second portable terminal 200 through the antennas 140 and 240 through an amplifier (not shown) located in the transmitter 130.

The electrical signal transmitted through the antenna 140 is received through the antenna 240 of the second portable terminal 200 and amplified to the signal passed through the filter to remove the high frequency noise transmitted in the communication process. . The amplified signal includes vibration information recorded in the first portable terminal 100. When receiving the electrical signal from which the noise containing the vibration information is removed, the receiver 210 of the second portable terminal 200 undergoes amplification process so as to reproduce the information of the vibration signal.

The decoding unit 220 decodes the amplified signal as described above. The motion vibration information recorded in the first portable terminal 100 through the decoded signal is reproduced again in the form of vibration by a predetermined rule.

The place where such decoding is performed is the microprocessor of the second portable terminal 200. The microprocessor of the second portable terminal 200 performs the reverse process of the process performed in the microprocessor of the first portable terminal 100.

In other words, the communication signal is converted into an electrical signal. This signal is a kind of voltage signal. The output unit 230 converts the voltage signal into a vibration signal. The output unit 230 uses a vibration element for converting the above-described voltage signal into a vibration signal. The vibration device is preferably a vibration motor, an ultrasonic motor, a solenoid, or a piezoelectric device.

Vibration motors are devices that convert electrical signals into mechanical signals. Generally used vibration motor is a device that can adjust the strength of vibration.

In other words, the vibration motor operates in a state where a constant voltage is applied. In order to control the rotation speed of the vibration motor, PWM (Pulse Width Modulation) is used. By controlling the on / off of the motor within a fine time interval, it is possible to obtain the effect as if the voltage is applied less than the applied voltage.

Figure 4a, b, c, d, e is an exemplary view showing a process in which the vibration motor according to the present invention receives the vibration signal to change to the effective value of the voltage. First, as shown in FIG. 4A, when data having an effective value of voltage A is calculated, an on / off process of the vibration motor does not occur and maintains a constant voltage. In FIG. 4B, data having an effective value of this voltage of ¾ A is calculated. Then, as time passes, the values of ½ A and ¼ A are output as shown in FIGS. 4C and 4D. The conversion of such output value into analog data is a process performed in the receiver of the vibration device according to the present invention. Of course, there is an analog control method of amplification proportional control using a transistor as an output control method that can be used for the operation of the vibration motor. However, in the case of controlling the vibration motor in this manner, a lot of limitations and problems occurred in the power loss generated by the transistor and the heat generation. On the other hand, in the case of PWM control, the output is controlled with the width of the high (on time) and low (off time) values of the digital method, not the amplification proportional control. Therefore, since the transistor only needs to operate ON / OFF, the voltage drop generated by the transistor is very low, and thus power loss and heat generation due to current are very low.

As shown in Figs. 4A, B, C, D, and E, a circuit for varying the speed for driving any motor is constructed so that this speed control circuit is PWM. The width is ON / Off control. That is, as the time for outputting is widened as shown in FIGS. 4A and 4B, the value of output increases, so that the average voltage increases. However, the narrower the width of W, the smaller the output value, so the average voltage drops.

5 is a flowchart illustrating a process of outputting a vibration voltage by applying a PWM method according to the present invention. As shown in FIG. 5, the first output value must be determined first (S100). These outputs can be configured in various ways depending on the function to be implemented, but can be increased and decreased as needed.

When the output value is determined, pulse width modulation occurs according to the width of the output W (S200). Processing for the data on which the pulse width modulation has occurred is performed according to the above-described process. The pulse width modulated current signal enters the motor driver for the amplification process (S300). Then, the operation of the motor is generated according to the signal of the current entered into the motor driver to output the vibration signal (S400).

That is, in the case of the vibration motor, the above-mentioned time of W is very short time of about ㎳, so there is no concept of moving for 10 ㎳ and stopping for 90 ㎳. In addition, internal coils and many other influences act like a kind of LPF, giving ¼A, ½A, ¾A, 0 of a given A value. In the case of the vibration motor operation method according to the present invention used a voltage of 1 ~ 5V. As such, the voltage of 1V is the minimum voltage for the use of the portable terminal, and in the case of 5V, it corresponds to the maximum output of the vibration motor. The adjustment of such output value is made larger or smaller as needed, so it is obvious to those skilled in the art, so detailed description thereof may be omitted.

The ultrasonic motor is composed of a stator and a mover composed of a piezoelectric body and an elastic body. When an AC voltage is applied to the piezoelectric body, mechanical vibration is excited. When vibration generated in the ceramic piezoelectric body is transmitted to the stator, the points on the surface of the stator move in an elliptic trajectory, and the mover in contact with the stator rotates by the frictional force caused by the elliptic motion.

Such ultrasonic motors are characterized by no noise and no influence on electromagnetic waves and magnetic fields. In addition, the structure is simple, it is easy to implement small size, light weight. In addition, it is suitable for use as a vibration element of the vibration information transmission device according to the present invention because it has a fast response speed and features that can be precisely controlled.

Solenoids are cylindrically wound electric coils. When the coil is wound in a circle and an electric current flows, a magnetic field is generated inside the circle. When the magnetic material approaches this, it moves to the center of the circle. In other words, the solenoid is a device that converts mechanical energy, that is, reciprocating kinetic energy, by applying electrical energy to the coil.

In the same principle as above, it is called an electric motor that combines a device that converts magnetic poles to generate rotational motion and converts electrical energy into mechanical rotation.

Most solenoids are made of magnetic devices made of soft magnetic materials corresponding to the outer casing and inner core made of magnetically driven rods, plungers and coils around the coil. The strength B of the magnetic field near the center of the coil depends on Equation 1 which is determined by the strength i of the current flowing through the solenoid i, the number of turns per unit length n, and the permeability μ.

When a current is applied to the internal coil, magnetism is generated in the magnetic circuit surrounding the coil, and the magnetic field of the magnetic circuit generates magnetic force on the iron rod to move the rod. At this time, the iron rod and the coil are called solenoids. By using this principle, it is possible to move the operation of the portable mobile device with respect to the electric signal.

A piezoelectric element is a device that uses a phenomenon in which a deformation force is applied to crystals such as quartz, Rochelle salt, barium titanate, and the like, and a mechanical deformation occurs when placed in an electric field. Piezoelectric elements are used for piezoelectric elements for electromechanical conversion and resonators using resonance characteristics. Such converters include mechanical vibrations to electric vibrations and electrical vibrations to mechanical vibrations. In converting electric vibration into mechanical vibration, there are those which generate electric vibration of a stable frequency or electric vibration of a specific frequency. It is also used to make a response to an electrical signal of a certain frequency, which is called a resonator. It is judged that the piezoelectric effect as described above occurs because the relative position of the ions changes due to the deformation of the crystal, and strong excitation occurs when the elastic vibration and the electrical vibration of the crystal plate coincide. Therefore, various conversion elements and resonators can be made according to the cutting method, the size, the shape of the crystal used, and the applied voltage. By using such a piezoelectric element, it is possible to convert an electrical signal into a vibration signal and output the vibration signal.

In the manner of implementing the vibration effect of the vibration device, it is possible to use a lookup table or to adjust the intensity of vibration in proportion to the amplitude of the operation signal. A lookup table is a table that you use to reference values instead of using "Switch" or "Case" statements when you want to process large amounts of data. That is, in advance, the vibration signal corresponding to the signal that the user wants to output is set in a series of arrangement, and when the user of the first portable terminal 100 transmits the communication signal using a communication means, a second hu Dangyong terminal 200 uses a lookup table in the process of decoding after converting the received signal into an electrical signal.

6A and 6B are exemplary views illustrating a case in which PWM modulation is performed on a vibration signal according to the present invention. As shown in FIG. 6A, when the vibration signal changes the amplitude and the time at which the amplitude is given, the PWM modulation method displays its characteristics as shown in FIG. 6B. That is, when the amplitude of the given operation is large, the width W of the PWM signal becomes long, and when the amplitude of the operation is small, the opposite phenomenon occurs.

7A, 7B, 7C, and 7D are exemplary views illustrating determining an output signal using PWM modulation on a received signal according to the present invention. 7A and 7B show an example of modulating an electric signal into a PWM signal and then calculating a vibration signal corresponding thereto according to the magnitude of the operating voltage. That is, as shown in FIG. 7A, when vibrations having the same amplitude are generated in a state where the intervals of vibrations are reduced, the vibration motor converts the period change for such a short time into an intensity of amplitude and converts it into an output of 3V. It is possible.

On the other hand, when the interval of the vibration signal is widened, it is possible to configure a signal having a vibration magnitude of 5V for each signal to be output at a constant time interval as shown in FIG. 7B. In this case, the magnitude of the operation signal in the first portable terminal 100 is preferably configured to be reflected by the magnitude of the vibration signal and the vibration of the second portable terminal 200. Such signal transmission is preferably configured to be made separately from the transmission of the voice signal of the first portable terminal 100.

7C and 7D show examples of using a lookup table. The lookup table is determined by trial and error so that a proper response can be shown according to the characteristics of the user's motion signal. As shown in FIG. 7C, the second portable terminal 200 generates two vibration signals when the user gives one vibration signal because the program is provided in the lookup table in advance. FIG. 7D shows an example in which the lookup table recognizes when the user shakes and shakes twice at a predetermined time interval. This is not to recognize that the vibration signal applied to the first portable terminal 100 is subjected to three vibrations, but recognizes that the signal (2,1) is given, and the vibration characteristic corresponding thereto is made by a predetermined program.

As described above, it is a feature of the present invention that the lookup table is used or the vibration signal is obtained to reflect various characteristics of the operation signal.

8 is a flowchart illustrating a process of converting a vibration signal into a voice signal according to the present invention. As shown in FIG. 8, the signal output from the decoding unit 220 enters a gain adjuster. As such, the magnitude of the maximum voltage to be output is determined by the signal entered into the gain regulator (S110). In addition, the volume information obtained through the gain adjuster is mixed with the voice signal of the second portable terminal 200 in the multiplexer (S210). As such, the vibration signal mixed with the voice signal adjusts the output frequency or volume of the voice signal. And it goes through the power driver (S310). As such, the voice signal outputted through the power driver is output through the speaker (S410). Through such a method, the transmission and reception process of the portable terminal according to the present invention is possible in the form of voice output.

9A and 9B are exemplary views illustrating outputting a voice signal in a transmission and reception method of a portable terminal according to the present invention. 9A shows a state before an audio signal is output. In other words, it can be said that the voice state before entering the preamplifier (not shown). Such a voice signal can be modulated in amplitude through a multiplexer. FIG. 9B is an exemplary view showing that the vibration signal decoded in FIG. 7A adjusts the amplitude of amplitude. That is, it is possible to make the sound louder for a certain time. As such, the amplitude of the voice, which is an output signal, may be changed with respect to the input vibration signal.

That is, when the magnitude of the current counterpart mobile phone volume is V, and the value obtained as in FIG. 7A is α, under the condition that the limit volume does not exceed V _th

V '= αV

 In the form of Equation 2, a modulation method for a specific period of time is possible. For example, if α = 2, the volume is improved by 6 dB. In FIG. 9B, a 6 dB enhanced volume is applied at around 6 seconds.

10 is a procedure showing a transmission and reception method of a portable terminal according to the present invention. As shown in FIG. 10, the method for transmitting / receiving a portable terminal first changes vibration information into acceleration magnitude information using an acceleration sensor (S10). In this case, the acceleration information may be stored not only as the magnitude information of the acceleration but also as information such as the number of vibrations generated during the unit time. The vibration information of the first portable terminal 100 changed as described above is encoded by a microprocessor located in the encoder 120 (S30). In this case, when the high frequency information is included, interference may be caused in the interpretation of the signal, and thus the noise must be removed first for the vibration information (S20). The encoded operation signal information is transmitted to the second portable terminal 200 via an amplifier (not shown) and antenna 140 located in the first portable terminal 100 (S40). The operation information of the first portable terminal 100 transmitted as described above is converted into a communication signal and received by the receiver 210 of the second portable terminal 200 (S50). The signal information received by the receiver 210 is decoded by the decoder 220 (S60). The signal information operates any one of a vibration motor, an ultrasonic motor, a solenoid, and a piezoelectric element located in the output unit 230. The PWM modulation method is used to generate the information of the operation as described above. . In the above manner, the signal information stored in the first portable terminal 100 may be output in various forms in the second portable terminal 200 (S70 and S71).

In this way, it is possible to change the operation information of the first portable terminal 100 into a vibration signal, but also, it is also possible to increase the signal of the voice or to quickly adjust the frequency. That is, the signal information decoded by the decoding unit 220 is mixed with the voice signal in the variable gain digital audio amplifier located in the output unit 230. The mixed signal is output through the speaker via the power driver (S71).

As such, operation information of the first portable terminal 100 may be output through the speaker or the vibration motor.

1 is a perspective view showing a user generating a vibration signal using a first portable terminal according to the present invention.

Figure 2 is a block diagram showing the configuration of a portable terminal for transmitting and receiving operation information according to the present invention.

3A is a graph showing a vibration signal displayed when the first portable terminal vibrates once.

Figure 3b is a graph showing that the vibration signal is displayed when the first portable terminal vibrates twice.

Figure 3c is a graph showing the change in acceleration magnitude of the accelerometer for first shaking twice and then shaking once.

Figure 3d is a graph showing a graph of the actual acceleration signal corresponding to several shaking at various specific time intervals.

Figure 4a, b, c, d, e is an exemplary view showing a process in which the vibration motor according to the present invention receives the vibration signal to change to the effective value of the voltage.

5 is a procedure showing a process of outputting a vibration voltage by applying a PWM method according to the present invention.

6a and 6b are exemplary views showing a case where PWM modulation is performed on a vibration signal according to the present invention.

Figures 7a, 7b, 7c, 7d is an exemplary view showing determining the output signal using PWM modulation for the received signal according to the present invention.

8 is a flowchart illustrating a process of converting a vibration signal into a voice signal according to the present invention.

9A and 9B are exemplary views illustrating outputting a voice signal in a transmission and reception method of a portable terminal according to the present invention.

10 is a procedure showing a transmission and reception process of the portable terminal according to the present invention.

<Description of Signs of Major Parts of Drawings>

100: the first portable terminal,

110: sensor unit,

120: encoding section,

130: the transmitter,

140: antenna,

200: a second portable terminal,

210: receiver,

220: decoding unit,

230: the output unit,

240: Antenna.

Claims (11)

A sensor unit 110 including an inertial measurement unit to measure a size and a period of a user's motion; An encoding unit 120 for converting the operation information measured by the sensor unit 110 into an electrical signal; A transmitter 130 for transmitting the encoded signal; A receiver 210 for receiving a transmission signal transmitted from the transmitter 130; A decoding unit 220 for decoding the signal received by the receiving unit 210; and And an output unit (230) for converting the decoded signal into a vibration signal or a voice signal. The method of claim 1, The inertial measurement device includes an acceleration sensor, the portable terminal for transmitting and receiving motion information, characterized in that for measuring the linear acceleration of the first portable terminal. The method of claim 1, The encoder 120 further includes a low frequency filter for removing noise. The method of claim 1, The encoder 120 further includes a table for converting information on the magnitude and period of the operation signal into vibration information. The method of claim 1, The decoding unit 220 uses a look-up table when using the decoded signal or a mobile terminal for transmitting and receiving motion information, characterized in that to adjust the characteristics of the vibration based on the operation signal. The method of claim 5, The decoding unit 220, When adjusting the characteristics of the vibration based on the operation signal, the number of vibrations applied at a predetermined time reflects the magnitude of the vibration or the magnitude of the amplitude of the operation signal to the magnitude of the vibration, characterized in that the portable Terminal. The method of claim 1, The output unit 230 is a portable terminal for transmitting and receiving operation information, characterized in that any one of a vibration motor, ultrasonic motor, solenoid, piezoelectric element or variable gain digital audio amplifier. In the transmission and reception method of a portable terminal, Converting information on an operation size and a period into an electrical signal in the first portable terminal 100 (S10); Removing noise with respect to the electrical signal (S20); Encoding (S30) the signal from which the noise is removed; Transmitting the encoded signal through an antenna (140) (S40); Receiving the transmitted signal at a second portable terminal (200) (S50); Decoding the received signal (S60); and And converting the decoded signal into a vibration signal by using a PWM method (S70). The method of claim 8, The PWM method may include determining an output voltage (S100); Performing pulse width modulation on the signal whose output voltage is determined (S200); Amplifying in the motor driver with respect to the pulse width modulated signal (S300); and Transmitting and receiving method of a portable terminal for transmitting and receiving operation information, characterized in that it comprises the step (S400) for outputting a vibration signal suitable for the signal amplified by the motor driver from the motor. The method of claim 9, In the step of determining the output voltage (S100), the output voltage is a transmission and reception method of the mobile terminal for transmitting and receiving motion information, characterized in that 1 ~ 5V. In the transmission and reception method of a portable terminal, Converting information on the magnitude and period of the operation into an electrical signal in the first portable terminal 100 (S10); Removing noise with respect to the electrical signal (S20); Encoding (S30) the signal from which the noise is removed; Transmitting the encoded signal through an antenna (140) (S40); Receiving the transmitted signal at a second portable terminal (200) (S50); Decoding the received signal (S60); and And converting the decoded signal into a voice signal in a variable gain digital audio amplifier (S71).

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