KR20020078052A - Music play system and method using key pad in mobile phone - Google Patents

Abstract

PURPOSE: An apparatus and a method for performing music using a keypad in a mobile terminal are provided to output MIDI(Musical Instrument Digital Interface) sounds so that a mobile terminal user can perform desired music as he pushes the keypad, to use the directly performed music as a bell sound, and to connect it to a task event. CONSTITUTION: An apparatus for performing music using a keypad(2) in a mobile terminal consists of the keypad(2), a flash memory(12), a task event(10), and a digital processor(11). The keypad(2) comprises various keys, such as numeric keys, function keys, etc. The flash memory(12) includes a MIDI file(12A) and a telephone directory(12B). The MIDI file(12A) stores the music performed by a user. The telephone directory(12B) stores telephone numbers. The task event(10) has a power on/off function, an alarm function, and a specific option function. The digital processor(11) judges a key selection signal from the keypad(2) and controls a connection operation with the flash memory(12) or the task event(12) so that a single tone based on the signal can be outputted as a MIDI sound.

Description

Music playing system and method using a key pad in a mobile communication terminal {Music play system and method using key pad in mobile phone}

The present invention relates to a device for playing music using a keypad in a mobile communication terminal such as a cellular phone or a PCS, and a method thereof. Particularly, a user of a terminal plays a ringtone or power on / off, an alarm, or a specific option for a music played by the user The present invention relates to a device and a method for transmitting and playing MIDI sound by connecting to each task event.

The above-mentioned MIDI (Musical Instrument Digital Interface) is an international standard for electronic musical instruments, which is a type of interface for controlling electronic instruments externally proposed by each manufacturer, such as Roland, and the like. MIDI) terminal is provided.

By adopting such a MIDI function, the PC can control electronic instruments,

Due to the advantages of automatic performance and tone management, PC software (also called music software) that meets this standard is increasing day by day.

A process of implementing a tone sound according to a keypad of a conventional mobile communication terminal will be described with reference to FIGS. 1 and 2.

As shown in Fig. 1 and Fig. 2, the terminal user presses any key pad 2, and the sound is transmitted. Generally, this is a dual tone multi frequency (DTMF), and a low frequency sound and a high frequency sound are simultaneously transmitted. It is supposed to be.

Such DTMF is adjusted to be different or the same for each keypad 2 of the terminal 1. In the terminal, the DTMF signal is generated by using a vocoder unit. More specifically, as shown in FIG. 2, two first and second M / N counters 3 and 4 are used. Each produces a low frequency sound and a high frequency sound, and combines them together to generate DTMF. It is stored in a register not shown according to the values of M, N and D (Duty), which are values for determining frequencies of the first and second M / N counters 3 and 4, to determine the frequency to generate DTMF. Will be.

In this case, if the M, N and D values, which determine the frequencies of the first and second M / N counters 3 and 4, are equal to each other, the same frequency is generated and summed so that a single note of the same frequency (Single Tone) (ST) is generated, and two different frequencies, DTMF, are generated if the M, N, and D values are different.

Fig. 3 shows an example of DTMF frequency change of the first and second M / N counters 3 and 4 according to the selection of the keypad 2, which is based on a terminal of a Qualcomm company. These frequencies can be arbitrarily set by software.

However, in the conventional method of implementing the tone sound according to the keypad of the mobile communication terminal, the user easily feels tired because the sound of the DTMF sound transmitted every time the user presses the keypad is very monotonous. Even though the ringtone is down to distinguish the sender according to the sender, this has a problem in that it cannot be fully utilized because it is subject to the addition of a call charge and time restrictions.

Therefore, the present invention has been proposed to solve the problems of the prior art, and whenever a key pad of the terminal is pressed, MIDI ("DI, RE, MI ..." sounds, etc.) are transmitted, and the like. By combining the music you want to listen to, you can increase the user's interest, and you can specify the sound you played as a ringtone, and connect it to each task event of the terminal and transmit it as a MIDI sound. It is an object of the present invention to provide a music playing apparatus using a keypad and a method thereof in a mobile communication terminal capable of distinguishing caller information and each terminal operation by a MIDI sound.

The playing device of the present invention for achieving the above object comprises a key pad provided with 0 to 9 numeric keys and * key, # key; A flash memory including a MIDI file in which music played by a user is stored, and a phone book in which a phone number of the other party is stored; Task events with power on / off, alarm, and certain optional functions; And a digital processor for controlling a connection operation with the flash memory or the task event to determine a key selection signal of the keypad and to implement a single tone of frequency according to the MIDI tone.

In addition, it is characterized in that the score and the musical notes are displayed on the liquid crystal display (LCD) screen of the mobile communication terminal to play visually.

In addition, the playing method of the present invention includes a first step of the user selecting a key pad performance, and then selecting a low scale or a high scale to adjust the scale, and then pressing the keypad to play music; A second step of ending the music performance through the first step and storing the file as a file; And storing the file as a third step of selectively connecting a phone book or a task event with the file and transmitting a corresponding MIDI sound.

1 is a view showing a keypad arrangement of a conventional terminal.

Figure 2 is a block diagram for explaining a DTMF or single tone generation operation of a conventional terminal.

3 is a diagram illustrating a DTMF frequency change according to a keypad of a conventional terminal.

4 is a block diagram of a music player according to the present invention;

5 is an operation flowchart for explaining a music playing method according to the present invention;

Figure 6 is an exemplary diagram of the scale and frequency changes according to the keypad according to the present invention.

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

1: Terminal 2: Key pad

10: Task Event 11: Digital Processor (MSM)

12: flash memory 12A: MIDI file

12B: Phone Book

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

Fig. 4 is a block diagram of the apparatus for playing music according to the present invention. As shown, a key pad 2 having 0 to 9 numeric keys, * keys, and # keys is provided; A flash memory 12 including a MIDI file 12A in which music played by a user is stored, and a phone book 12B in which a phone number of the other party is stored; A task event 10 with power on / off, alarm, and certain optional functions; To determine the key selection signal of the keypad 2 and to control the connection operation with the flash memory 12 or the task event 12 to implement a single tone of the frequency according to the MIDI processor 11 It is composed.

FIG. 5 is a flowchart illustrating a method of playing music according to the present invention. As shown in FIG. 5, a user selects a performance of the keypad 2 and then selects a low scale or a high scale to adjust the scale. (S2) and subsequently pressing the keypad (2) to play music (S3); A second step of terminating the music performance through the first step and then storing it as a file (S4); After storing the file as a file (12B) or the task event 10 and the file is selectively connected (S5) is made of a third step of transmitting the corresponding MIDI sound (S6).

The operation of the present invention made as described above will be described with reference to FIGS. 4 to 6 as follows.

First, when the user selects the 0-9 key, * key, # key, etc. of the keypad 2 and inputs the same to the digital processor 11, the digital processor 11 determines the input key selection signal. The operation of the task event 10, the flash memory 12, and the speaker 13 may be controlled to transmit a sound.

In other words, in order to transmit a single tone such as "do, re, me ....." which is a MIDI note according to the operation of the keypad 2, first, the first M / N counter and the second M are transmitted. The M, N, and D values above are equal to each other such that the / N counters generate the same frequencies.

For example, assuming that the number 1 key of the keypad 2 is pressed, M and N values are determined to generate 262 Hz frequency in both the first and second M / N counters as shown in FIG. In this case, the output frequency of 262 Hz has a relational expression of M / N * 307.5 Hz (e.g., in the case of Qualcomm's MSM3100), and the digital processor 11 implements a single note corresponding to the frequency as a MIDI note. Done.

That is, when the user presses the key pad 2, the sound of the sound such as "Doremi ...." is transmitted so that the user selects the performance of the key pad 2, and as shown in FIG. After adjusting the scale by selecting among the scale (low scale) and the B scale (high scale), music is played as the keypad 2.

6, there is actually a low scale "do, les, beauty, wave, sol, la, poetry, poetry, ....." and high scale "do, les, beauty, wave, sol, la, poetry, poetry. , ..... "is the frequency of the sound.

Therefore, in order to transmit the sound of the scale, the output frequencies of the first M / N counter A and the second M / N counter B indicate that the desired sound of the desired keypad 2 is to be sent. will be.

In another example, in order to have a low scale “sol” when the number 5 on the keypad 2 is pressed, the low scale “sol” tone is 392 Hz in frequency, so the output frequency of the first and second M / N counters is lower. The M, N, D values of the first and second M / N counters can be adjusted by software so that 392 Hz is output.

The music played by the user is stored in the MIDI file 12A in the flash memory 12 shown in Fig. 4 according to the control operation of the digital processor 11, and the stored sound is the telephone number of the other party in the phone book 12B. Caller ID can be implemented by setting the connected music to be played as a ringtone when a call is received from a specified party connected to the network.

In addition, it is connected to the task event 10 to turn on / off the power or to transmit the MIDI sound in the event of an alarm.

In addition, as another embodiment of the present invention, it is also possible to visually play by displaying the score and notes through the liquid crystal display (LCD) screen of the terminal.

As described above, according to the present invention, whenever a key pad of a mobile communication terminal is pressed, a MIDI ("do, les, ......") sound, such as MIDI, is transmitted, and the combination is played to play music. It is possible to inspire the user's interest by specifying the sound played by the user directly as a ringtone, and to connect to each task event (Task Event) of the terminal and send it as a MIDI sound, caller information (Caller ID) And it is possible to distinguish the operation of each terminal by the MIDI sound provides an effect that can facilitate the convenience of using the terminal. In addition, the score and the note is displayed on the LCD screen of the terminal to provide the effect that the terminal user can play visually.

Claims (3)

In a mobile communication terminal such as a cellular phone or PCS, A keypad provided with 0 to 9 numeric keys, * key, and # key; A flash memory including a MIDI file in which music played by a user is stored, and a phone book in which a phone number of the other party is stored; Task events with power on / off, alarm, and certain optional functions; And a digital processor for controlling a connection operation with the flash memory or the task event to determine a key selection signal of the keypad and to implement a single tone of a frequency accordingly. Music player using the keypad. The method of claim 1, Music playing apparatus using a keypad in a mobile communication terminal, characterized in that to display the score and notes through the liquid crystal display (LCD) screen of the mobile communication terminal to play visually. A first step of adjusting a scale by selecting a low scale or a high scale after a user selects a keypad play, and then presses the keypad to play music; A second step of ending the music performance through the first step and storing the file as a file; And storing the file as a third step of selectively connecting a phone book or a task event with the file and transmitting a corresponding MIDI sound.