KR20070040904A - Mobile communication terminal which generates audio signals according to outside motion - Google Patents

Abstract

The present invention relates to a mobile communication terminal equipped with a sensor, a sensor for recognizing the movement of the outside of the mobile communication terminal, a control unit for commanding the sound source processing according to the output value, the audio signal according to the command received from the control unit It is configured to include an audio reproducing unit, wherein the sensor is a three-axis infrared sensor for three-dimensional recognition of the external motion of the mobile communication terminal, an acceleration sensor for detecting the movement of the terminal itself, can detect a two-dimensional hand motion Touch pads can be used. According to the present invention, the multimedia function of the mobile communication terminal is improved by giving various effects such as the height of the sound, the change of the short and long term, the adjustment of the playback speed, the mixing of the scratch sound, the echo effect, etc. according to the output value from the sensor. You can expect entertainment effects.

Movement, motion, motion, recognition, detection, sensor, filtering, sound effect, multimedia, fun, entertainment

Description

Mobile communication terminal which generates audio signals according to external movement {mobile communication terminal which generates audio signals according to outside motion}

1 is a block diagram of an audio function of a conventional mobile communication terminal.

2 shows a block diagram of the audio function of the present invention mobile communication terminal.

3 is a front view of a mobile communication terminal equipped with a three-dimensional recognition three-axis infrared sensor.

Figure 4 shows an embodiment of a mobile communication terminal with a three-dimensional recognition three-axis infrared sensor.

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

110: keypad 120: memory

130: control unit 140: audio playback unit

150: output unit

210: keypad 220: memory

230: control unit 240: audio playback unit

250: output unit 260: sensor

360-A: Infrared sensor attached on the X axis 360-B: Infrared sensor attached on the Y axis

360-C: Infrared sensor attached on the X axis 360-D: Infrared sensor attached on the Y axis

420: memory 430: control unit

440-A: DSP 440-B: Digital Analog Converter

440-C: DSP-3A3 440-D: Melody Chip

450: internal speaker 460: side of the terminal

The present invention relates to a mobile communication terminal equipped with a sensor. More specifically, the present invention relates to a mobile communication terminal that can be equipped with a sensor module that recognizes an external motion of the terminal or the movement of the terminal itself to give various sound effects, such as adding sound effects and filtering to a sound source in real time.

Referring to FIG. 1, in the related art, a keypad 110 which is an input unit, a memory 120 in which a moving picture or a sound source is stored, a controller 130 functioning as a CPU, and a moving picture are associated with audio functions of a mobile communication terminal. And a DSP for performing high-speed processing on a music or camera image, a melody chip for reproducing a specific melody source, a function for mixing or distinguishing a sound source output from the DSP and a sound source output from the melody chip, and digitally processed music data. Audio output unit 140 composed of a digital analog converter for converting the analog signal to output to the speaker, and an output unit 150 that is an internal speaker.

 In the audio output process, sound source data from a DSP or melody chip is sent to a digital analog converter, which is converted into an analog signal, which is output for the user to hear through a speaker.

In the conventional technology, sound source data stored in a compressed form in a memory and a signal streamed in real time are processed by a DSP (Digital Signal Processor) under a control signal of the controller 130, and generated in the processed data or melody chip. The digital signal of the melody data is converted into an analog signal through a digital analog converter and output to the speaker. Users could not only listen to the sound data and streaming signals stored in memory in real time, but also could not process the sound source secondary to apply sound effects, filter them, or use entertainment to scratch the records. In other words, the existing audio function was limited to listening to the multimedia sound source as it is.

In the use of such a multimedia sound source, it is intended to implement a technology for processing the secondary sound source in order to realize a wider entertainment function. Moreover, for various and creative use of contents, we want to attach a sensor to express user's hand movement or mobile communication terminal's movement to the sound source. Since this is a three-dimensional motion, a three-dimensional recognition 3-axis infrared sensor is installed for this purpose, and a user can detect a user's movement pattern, a moving direction and a speed of a terminal, and implement a function that can change the shape of a sound source in accordance with the pattern. I would like to.

The present invention provides a sensor 260 for recognizing movement outside the mobile communication terminal, a control unit 230 for commanding sound source processing according to the output value from the sensor, and generating an audio signal according to the command received from the control unit. It characterized in that it comprises an audio playback unit 240. The sensor is characterized in that the infrared sensor is installed on each one of the front, top, bottom, left and right of the mobile communication terminal, each infrared sensor is characterized in that installed at a predetermined angle with respect to the plane. The sensor may be an acceleration sensor or a touch pad. The audio reproducing unit may generate an audio signal by processing the sound source according to a command from the controller that interprets the sensor input, or generate an audio signal by itself to generate the audio signal. The mobile communication terminal further includes a terminal for external input, wherein the sound source is input through this terminal. The control unit does not issue an audio control command while the motion is not recognized, the sensor is a keypad, and the motion is further provided with a function of giving an audio control command as an input of the keypad.

In Figure 2, the configuration of the present invention is a sensor 260 for recognizing the movement of the outside of the mobile communication terminal, a control unit 230 for commanding the sound source processing in accordance with the output value of the sensor, the command received from the control unit Accordingly, the audio reproducing unit 240 is configured to generate an audio signal.

 The sensor 260 may use a three-dimensional recognition triaxial infrared sensor, an acceleration sensor, or a touch pad. 3 is a front view of a mobile communication terminal equipped with this three-dimensional recognition three-axis infrared sensor. Three-Dimensional Recognition Three-axis infrared sensor detects motion by detecting the direction and speed of movement in three-dimensional space represented by X, Y, and Z axes in space. The sensor 360-A and the sensor 360-C detect the X axis, the sensor 360-B and the sensor 360-D detect the Y axis, and the four sensors detect the Z axis. If these sensors are mounted at an angle adjusted in parallel with the surface of the terminal, the sensing angle may be increased to widen the range that the sensors can detect. In some cases, a sensor may be mounted on the side or the back of the terminal to detect movement in an angleless space.

The acceleration sensor can detect the movement of the mobile communication terminal itself. In other words, the acceleration sensor basically determines the slope using the gravity acceleration and obtains the vector to recognize the direction and speed of the movement.G is used as a reference for measuring the acceleration of gravity. Use a sensor of ~ 2G. For example, if you hold a terminal equipped with an acceleration sensor and shake it hard, the acceleration sensor mounted inside the chip uses a semiconductor processing technique called MEMS (Micro Electro Mechanical System) in the form of a physical ball or gas. Gravity due to velocity and the velocity and direction vector in which a material such as a ball or gas mounted in the chip moves is calculated and the acceleration, ie, in which direction, is moved. By using this, it is possible to determine in which direction and at what speed, the terminal is moved to execute a specific application or to give the sound source an effect corresponding to the movement pattern of the terminal.

The touch pad is an input device widely used in notebook computers. The touch pad corresponds to a broad sensor in detecting a movement of a finger or the like that contacts the surface of the touch pad and can detect two-dimensional movement of a finger. This allows the disk jockey to perform an action that is more similar to that of playing a record board, thereby increasing the effect of entertainment.

The controller 230 receives an input for the motion detected by the sensor or the movement of the terminal and issues a command for the sound source effect corresponding to the motion pattern. When the control unit recognizes the operation pattern, various operation patterns are input to the memory, and among the input operation patterns, the closest operation pattern corresponding to the output value from the sensor is found and the command corresponding thereto is output to the audio reproducing unit 240. Given to. In other words, when the controller accesses the memory to recognize the various operation patterns, parameter change values for each pattern are assigned to the memory, and the processing method for the sound source varies according to the parameters. In addition, these parameters may be a single fixed parameter but may be given several parameters. In other words, if the effect should be for 10 seconds, the sound must change in various ways during the 10 seconds, so there are parameters for each. If there is no motion recognition, the output is bypassed to the original sound source.

The controller may directly receive a parameter from a keyboard. At this time, the memory is accessed according to the input of the keypad and the effect on the sound source is generated according to the corresponding parameter.

The data used as the sound source may be stored in the memory 220 or may be generated in the melody chip or streamed in real time, and may be externally input from time to time. To this end, an analog input terminal and an external interface, which is an analog output terminal, exist in the mobile communication terminal so that a user can modify the sound source input from the outside of the mobile communication terminal and output it to the external terminal.

The audio reproducing unit 240 processes the sound source according to a command from the control unit that interprets the sensor input to generate an audio signal. Even when no sound source is supplied, the audio reproducing unit generates an audio signal by generating a sound source itself according to a command from a control unit that interprets a sensor input. That is, when the control unit issues a command corresponding to the operation pattern, the audio reproduction unit 240 may generate and output a unique sound corresponding to the unique sound even if there is no sound source.

Figure 4 shows a block diagram according to an embodiment of a mobile communication terminal equipped with a three-dimensional recognition three-axis infrared sensor. The controller 430 functions to control audio functions of all mobile communication terminals. The data stored in the memory is transformed into an audio signal through the DSP 440-A, transferred to the digital analog converter 440-B together with the signal generated by the melody chip 440-D, and is a three-dimensional digital signal processor (DSP-). It is passed to the input of 3-Axis-3) 440-C. The sound source input to DSP-3A3 recognizes the motion through the 3D recognition 3-axis infrared sensor and checks the pattern corresponding to each motion in real time and applies the assigned effect to the sound source. If no motion is recognized, it is bypassed to the original sound source and output through the speaker. In this case, a sound source of a CD player or an MP3 player may be used as an external input terminal, and may be output to an external speaker or earset using an external output terminal.

Effects on the sound source mentioned in the present invention include synchronized pitch adjustment, bandwidth adjustment, pitch range adjustment, high cut filter adjustment, low pass filter adjustment and the like.

While the invention has been described using some preferred embodiments, these embodiments are illustrative and not restrictive. Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the invention and the scope of the rights set forth in the appended claims.

The mobile phone era as a simple voice delivery device has already come to an end, and the mobile phone era as an all-purpose device that provides new and more diverse applications and functions has arrived. Third generation mobile phones perform many functions more like a small computer than a mobile phone.

However, in the related art, the user only passively listens to the MP3 type music stored in the mobile communication terminal or the streaming sound data. It is a reality that mobile communication terminals as a means of conveying various information and the like are now becoming machines having fun elements, that is, entertainment elements. For the pursuit of such a fun element, the present invention proposes an effective processing method of a sound source, and the user can increase the effect of entertainment by doubling the fun by changing the sound source creatively and actively.

Claims (11)

A sensor for recognizing a movement outside the mobile communication terminal; A control unit which issues an audio control command according to an output value from the sensor; And an audio reproduction unit for outputting an audio signal according to a command received from the control unit. The method of claim 1, The sensor is a mobile communication terminal, characterized in that the infrared sensor. The method of claim 2, The infrared sensor is a mobile communication terminal, characterized in that each one is installed on the front, top, bottom, left and right of the mobile communication terminal. The method of claim 3, A mobile communication terminal, characterized in that each infrared sensor is provided at a predetermined angle with respect to the plane. The method of claim 1, The sensor is a mobile communication terminal, characterized in that the acceleration sensor. The method of claim 1, The sensor is a mobile communication terminal, characterized in that the touch pad. The method of claim 1, And the audio reproducing unit generates an audio signal by processing the sound source according to a command from the controller. The method of claim 7, wherein The mobile communication terminal further comprises a terminal for external input, wherein the sound source is input through this terminal. The method of claim 1, And the audio reproducing unit generates an audio signal by generating a sound source by itself according to a command from the controller. The method of claim 1, The control unit does not issue an audio control command while the movement is not recognized. The method of claim 1, The sensor is a keypad, the control unit is a mobile communication terminal, characterized in that for giving an audio control command according to the input of the keypad.

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