KR100639330B1 - mobile communication terminal having a sound switching function and controlling method therefore - Google Patents

Abstract

The present invention relates to an MSM unit for separately outputting an AMR sound file from a call signal received by the mobile communication terminal, and an AMR sound signal input from the MSM unit as an analog signal in a mobile communication terminal for wirelessly receiving an AMR sound file. An analog baseband unit having a switching module 4 for converting and switching an AMR sound file converted into the analog signal according to the AMR switching control signal, and storing the downloaded AMR sound file according to the storage control signal of the MSM unit; Provides a mobile communication terminal having a sound switching function including a memory unit and a stereo codec unit for amplifying and converting the analog AMR sound signal switched by the switching module of the analog baseband unit to a speaker by a stereo method. do.

The present invention as described above comprises a switching module in an analog baseband unit for generating an AMR file as an analog signal, and converts an ARM file reproduced with the analog signal into a stereo codec, thereby converting an analog signal reproduced from an AMR file into a stereo signal. In addition to being able to handle and adjust the size, the sound characteristics of the mobile communication terminal are greatly improved.

AMR sound file, MSM unit, switching module, analog baseband unit, stereo codec unit

Description

Mobile communication terminal having a sound switching function and controlling method therefore}

1 is an explanatory diagram illustrating a conventional mobile communication terminal.

2 is an explanatory diagram illustrating a mobile communication terminal equipped with an AMR sound automatic switching function of the present invention.

3 is a flowchart of the present invention.

<Detailed Description of Codes>

1: Mobile communication terminal 2: LCD panel

3: MSM part 4: transfer module

5: analog baseband part 6: memory part

7: handset 8: speaker

9: Stereo codec unit 10: Key panel unit

11: base station system 12: terminal

The present invention relates to a mobile communication terminal equipped with a sound switching function and a control method thereof. In particular, an analog baseband unit for generating an AMR file as an analog signal includes a switching module and converts an ARM file reproduced with the analog signal into a stereo codec. The present invention relates to a mobile communication terminal having a switching function and a control method thereof.

In general, mobile phones, especially mobile phones, are divided into hexagonal cells of several km to several ten kilometers in diameter in North America in the early 1980s, and the same frequency channel is repeatedly used in geographically separated cells. According to the first commercialization of a cellular phone (cellular-phone) that implements the radio channel switching function between cells has grown rapidly. In recent years, however, the universal mobile telecommunication system is capable of transmitting "third generation", broadband packet-based text, digitized voice or video, and multimedia data at a high speed of 2 Mbps or higher, regardless of where the mobile or computer users are anywhere in the world. Networks are developed to provide consistent services. At this time, the UMTS network allows computer and telephone users to continuously access the Internet while traveling and have the same performance regardless of where they are traveling. Users will use this UMTS service through a combination of terrestrial radio and satellite transmission technology. In addition, such a mobile communication terminal may download a specific music file and use it as a ringtone.

Then, referring to FIG. 1, the conventional mobile communication terminal as described above wirelessly processes a call signal transmitted and received with an external base station system 71 through an antenna 70 and performs adaptive multi_rate speech among the received call signals. codec) MSM unit (Mobile station modem: 72) for separating and outputting the sound file, and AMR sound file separated by the MSM unit 72 is converted into an analog signal to convert the speaker 74 of the terminal 73 It includes an analog baseband portion 75 that emits to the outside through.

Meanwhile, referring to the AMR reproducing method of the conventional mobile communication terminal as described above, first, the MSM unit 72 of the mobile communication terminal 73 includes the AMR sound file from the external base station system 71 through the antenna 70. The received data signal is received and processed and outputted to the analog baseband unit 75. At this time, when the user of the terminal 73 sets the received AMR sound file as an incoming call, the analog baseband unit 75 converts the AMR sound file into an analog signal according to the function control signal of the MSM unit 72. Is converted into a paging sound through the speaker 74 of the terminal 73.

However, the conventional AMR reproduction method of the mobile communication terminal as described above is a method in which the AMR signal is emitted from the analog base bend directly to the speaker when the user sets the received AMR sound file as an incoming call. The sound quality satisfaction of the AMR signal was considerably degraded because the sound quality of the AMR signal could not be adjusted, and the volume of the AMR signal could not be adjusted.

Accordingly, the present invention was invented to solve the above-mentioned problems, and it is possible not only to process the analog signal reproduced AMR file as a stereo signal, but also to adjust the size, thereby significantly improving the sound characteristics of the mobile communication terminal. It is an object of the present invention to provide a mobile communication terminal equipped with a sound switching function and a control method thereof.                         

Another object of the present invention is to use a stereo codec as it is without additional circuit modification to reproduce the sound of the AMR file, so that the mobile communication terminal and its control with a sound switching function that significantly reduces the design cost of the mobile communication terminal accordingly. To provide a method.

In order to achieve the above object, the present invention provides a mobile communication terminal for wirelessly receiving an AMR sound file, controlling the function of separately outputting an AMR sound file among call signals received by the mobile communication terminal, and controlling AMR switching. A control unit for outputting a signal, an analog baseband unit for converting the signal input from the control unit into an analog signal, and outputting the switching; and an analog AMR sound file converted by the analog baseband unit according to the AMR switching control signal of the control unit A switching module provided in the analog base bend for switching, a memory unit for storing the downloaded AMR sound file according to the storage control signal of the controller, and an analog AMR sound signal switched from the analog baseband unit by the switching module. Amplification and conversion Provided is a mobile communication terminal equipped with a sound switching function including a stereo codec output to a speaker.
According to another aspect of the present invention, when a function of automatically setting the AMR sound as a ringing tone is selected in the mobile communication terminal, the received AMR sound file is converted into an analog signal, and the switching is performed by switching the converted AMR sound signal to the stereo codec unit. A sound switching function consisting of an automatic switching step and a sound quality control step of stereo amplifying the AMR sound signal inputted by the stereo codec unit after the switching automatic switching step and adjusting the volume to a volume level set by the user, and then emitting it to the outside through the speaker. It provides a control method of the provided mobile communication terminal.

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

As shown in FIG. 2, the apparatus of the present invention is installed on a part of the body of the mobile communication terminal 1 to display various information signals therein, and a call signal transmitted / received to / from the mobile communication terminal 1. And an MSM unit (3), which is a control unit for controlling a function of outputting an AMR switching control signal while controlling a function of radio processing and outputting an AMR sound file among the received call signals, and inputting from the MSM (3). Switching switching between the analog baseband unit 5 for converting the converted signal into an analog signal and outputting the analog AMR sound file converted by the analog baseband unit 5 according to the AMR switching control signal of the MSM unit 3; In order to store various information of the mobile communication terminal 1 in accordance with the transfer module 4 provided in the analog base bend unit 5 and the storage control signal of the MSM unit 3, and to store the downloaded AMR sound file. Memory section 6, and the stereo CODEC unit 9 for outputting the AMR sound signal of switching the switching analog-to-speaker (8) for amplifying and converting process to the stereo system from the analog base band (5) by the switching module Include.

One end of the MSM unit 3 is connected to a key panel unit 10 for inputting a function setting signal of the user to the MSM unit 3.

Next, a control method applied to the terminal of the present invention as described above will be described.

The method of the present invention proceeds to the AMR sound automatic setting confirmation step (S2) in the initial state (S1) as shown in FIG. . At this time, if the AMR sound automatic setting confirmation step (S2) during the check as a result of the current mobile communication terminal is not selected to automatically set the ARM sound to the ring tone proceeds to the general call processing function execution step (S3) and general call processing Run the function.

That is, when power is applied to the terminal 1 of the present invention, the MSM unit 3 of the terminal 1 proceeds to an initialization state, forms necessary information from the internal memory unit 6, executes the initialization process, and then waits. Proceed to state.

At this time, the MSM unit 3 of the terminal 1 recognizes when the user inputs a telephone number through the key panel unit 10 and presses a call button, and the user inputs the telephone number to the memory unit 6. In addition to the storage, the system accesses the base station 11 through the access channel, and then transmits an outgoing signal to the corresponding telephone number. Then, the base station 11 processes the outgoing signal sent from the terminal 1 and transmits an incoming signal to the counterpart terminal 12 to form a call. That is, when a user of the terminal 1 inputs a voice signal through the handset 7, the stereo codec unit 9 of the terminal 1 processes the voice signal input through the handset 7 and performs an MSM. Input to part (3). In addition, the MSM unit 3 of the terminal 1 wirelessly processes the voice signal input through the stereo codec unit 9 and transmits the voice signal to the counterpart terminal 12 via the base station 11 to make a normal call. do.

However, when the AMR sound automatic setting confirmation step (S2) is confirmed during the present, when the function of automatically setting the AMR sound to the ringing tone is selected in the current mobile communication terminal, the process proceeds to the switching automatic switching step (S4) and receives the received AMR sound file. Converts the converted AMR sound signal into a stereo codec.

Then, after the switching automatic switching step (S4) proceeds to the sound quality control step (S5), the stereo codec stereo amplified the input AMR sound signal and adjusts the volume to the volume level set by the user and then emitted to the outside through the speaker Let's do it.

That is, when the user of the mobile communication terminal 1 selects the function of automatically setting the AMR sound as the ringing tone through the key panel unit 10, for example, the AMR sound file downloaded by SMS and stored in the memory unit 6 is stored. When set to the ring tone, the MSM unit 3 outputs the AMR sound file stored or received in the memory unit 6 to the analog baseband unit 5. Then, the analog baseband unit 5 converts the AMR sound file input from the MSM unit 3 into an analog signal, and then converts the converted AMR sound signal into a stereo codec unit (4). Switching to 9).

The stereo codec unit 9 stereo-amplifies the input AMR sound signal transferred from the analog baseband unit 5, adjusts the volume to a volume level set by the user, and emits the sound to the outside through the speaker 8. .

As described above, the present invention includes a switching module in an analog baseband unit for generating an AMR file as an analog signal, and converts an ARM file reproduced with the analog signal into a stereo codec, thereby converting an analog signal reproduced from an AMR file. As well as processing as a stereo signal can be adjusted in size, accordingly has the advantage of significantly improving the sound characteristics of the mobile communication terminal.                     

In addition, according to the present invention, since the stereo codec is used as it is without additional circuit correction for reproducing the sound of the AMR file, the design cost of the mobile communication terminal can be significantly reduced accordingly.

Claims (2)

In a mobile communication terminal for wirelessly receiving an AMR sound file, A control unit for separating and outputting the AMR sound file among the call signals received by the mobile communication terminal, and outputting the AMR switching control signal, and an analog baseband unit for converting and outputting the signal input from the control unit into an analog signal And a switching module provided in the analog base bend unit for switching the analog AMR sound file converted by the analog baseband unit according to the AMR transfer control signal of the control unit, and the downloaded AMR according to the storage control signal of the control unit. And a memory unit for storing a sound file, and a stereo codec unit for amplifying and converting the analog AMR sound signal switched from the analog baseband unit by the switching module in a stereo manner and outputting the same to a speaker. Mobile bucket with function New terminal. A switching automatic switching step of converting the received AMR sound file into an analog signal and switching the converted AMR sound signal to a stereo codec unit when a function of automatically setting AMR sound as a ringing tone is selected in the mobile communication terminal; After the automatic switching step, the stereo codec unit stereo-amplifies the input AMR sound signal, adjusts the volume to the volume level set by the user, and then controls the sound quality. Control method of mobile communication terminal.

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