KR20040042737A - Bell sound amplification apparatus for mobile communication device - Google Patents

Abstract

PURPOSE: A bell sound amplifier of a mobile communication terminal is provided to allow a user to easily recognize an incoming call by detecting, amplifying and outputting bell sound of a mobile terminal positioned in a bag or in a pocket. CONSTITUTION: A bell sound detector(10) detects bell sound generated from a mobile terminal. An external microphone unit(20) measures sound pressure outside a bag having the mobile terminal or sound pressure of bell sound outputted from the bag. A controller(30) controls a size of bell sound initially generated according to a noise degree of circumstances through the microphone unit(20) and automatically limits bell sound outside the bag to such a level that would not interfere others. A sound generator(40) generates bell sound.

Description

BELL SOUND AMPLIFICATION APPARATUS FOR MOBILE COMMUNICATION DEVICE}

The present invention relates to a ringtone amplification device of a mobile communication terminal, and in particular, when carrying a terminal in a bag or a pocket, the ringtone amplification device of a mobile communication terminal can be easily identified by detecting and amplifying and outputting the ringtone of the terminal. It is about.

In general, a mobile communication terminal has various ring modes for notifying a call reception. Representatively, there are ring mode and vibration mode, and the mode is changed according to the situation.

However, since the vibration mode is difficult to detect a call reception in a situation where the user is holding the terminal in his hand or is not in contact with the body, it is generally used in the ring mode.

However, when looking at the characteristics of the mobile terminal of most users, it can be seen that the female or the elderly are carrying the terminal in a bag such as a handbag or a color (SAC), and the male is carrying it in a pocket. You can easily hear the ringtones, but if you are in a bag, the ringtones are attenuated, so you will not be able to hear the ringtones at all, even in a slightly noisy environment.

Therefore, the present invention has been created to solve the above-mentioned conventional problems, when carrying the terminal in the bag or pocket, by detecting the amplification and output of the ringtone of the terminal, a mobile communication terminal to easily determine whether the reception of the call To provide a ringtone amplification device of that purpose.

The present invention for achieving the above object, the ringtone detection unit for detecting a ringtone generated in the mobile communication terminal; An external microphone unit for measuring sound pressure outside the bag into which the terminal is placed or sound pressure of a ring tone output to the outside of the bag; A control unit for automatically adjusting the size of the ringtone generated early in the device according to the present invention according to the noise level of the surrounding environment and the size of the ringtone outside the bag so as not to disturb others by the external microphone unit; Characterized in that it comprises a sound generating unit for generating a ringtone sound by the control unit.

1 is a block diagram showing the configuration of a ringtone amplification device of a mobile communication terminal according to the present invention.

Figure 2 is a flow chart showing the operation of the ringtone amplification apparatus according to the present invention.

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

10: ring detection unit 20: external microphone

30: control unit 40: sound generating unit

In general, since the ringtone size of the mobile communication terminal is limited to 70 dB, even if the ringtone is greatly increased, it is difficult to detect the ringtone when carrying a noisy place or a terminal in a bag or the like. Therefore, the present invention has a feature that makes it easy to hear the ringtone from outside the bag by detecting and amplifying the ringtone.

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

1 is a block diagram showing the configuration of a ringtone amplification device of a mobile communication terminal according to the present invention, and a ringtone detection unit 10 for detecting a ringtone generated in a mobile communication terminal, and the sound pressure outside the bag in which the terminal is placed. External microphone unit 20 for measuring the sound pressure of the ring tone output to the outside of the bag, and the size and the bag of the initial generated ringtone of the device according to the present invention according to the noise level of the surrounding environment through the external microphone unit 20 It includes a control unit 30 for automatically limiting the size to the level that the external ringtone does not disturb others, and a sound generator 40 for generating a ringtone sound by the control unit 30.

Hereinafter, the operation of the device configured as described above will be described.

For example, when the device according to the present invention is put in a bag together with a mobile communication terminal, the device of the present invention measures the degree of noise outside the bag through the external microphone unit 20 before the ringer rings, Set the size of the ringtone sound to be generated initially in the device of the present invention.

That is, the device of the present invention is for outputting a ring tone sound amplified above a predetermined sound pressure according to the noise level outside the bag in which the device is placed. If the external noise is 70 dB, the initial ring tone sound is higher than (about, 3dB or more) to output 75dB, 65dB to 70dB output.

More specifically, the ringtone detection unit 10 receives the ringtone of the mobile communication terminal and transmits it to the control unit 30, whereby the control unit when the ringtone of the terminal lasts more than a predetermined time (about 4 seconds) to 65dB or more, The sound generator 40 is turned on and transmits a sound generation command and data necessary for reproducing the sound, and the sound generator 40 generates a sound according to the command of the controller 30. In this case, in consideration of the user's inability to hear, the sound is gradually increased as time passes based on the sound size set by the user.

At this time, the reason for giving the condition of 65dB or more, 4 seconds or more as the operating condition of the present device is to prevent the malfunction due to a brief noise.

After the operation of the device is started, the ringtone sound output from the device is lowered to 50 dB or less for a predetermined time (about 10 ms) at predetermined time intervals (about 1 second), and the volume of the sound input through the ringtone detection unit 10 is reduced. Perform the procedure to compare and confirm with the operating reference sound pressure (65 dB).

At this time, if the sound volume input to the ringtone detector 10 is measured at a predetermined number of times (at least two times) at 65 dB or less continuously, the user regards the terminal as taken out of the bag, stops the operation of the device, and then returns to the standby state. Go back.

The operation of the device according to the invention will now be described in more detail with reference to the flow chart of FIG.

First, various variables (Count, Time_elapsed) for time measurement are initialized (S101), and it is detected whether a sound of a predetermined sound pressure (65 dB) or more through the internal microphone of the ringtone detector 10 continues for a predetermined time (4 seconds) or more. (S102). That is, it detects whether a ring tone is output from the terminal by receiving a call.

Next, depending on whether the external microphone unit 20 is used (S103), if the external microphone is not used, a ring sound is generated at a size set by the user (S104). The ring tone sound is generated by the noise more than a predetermined sound pressure (S105).

Then, at the interval of 5 seconds after the sound is generated (S106, S107), depending on whether the external microphone is used (S108), when using an external microphone, the maximum ring tone (MAX2) or the user specified by the law plus 3 dB is added to the external sound pressure. If it is smaller than the set ringtone (MAX1), increase the sound pressure of the ringtone sound (+ 3dB), and add 3dB to the sound pressure (SPL) of the current ringtone (MAX1) if you do not use an external microphone. If it is smaller, increase the sound pressure of the ringtone sound (+ 3dB) and store it, mute below 50dB for a predetermined time (about 10ms) at 1 second intervals (S112), and detects whether the ringtone is 65dB or less through the internal microphone. (S113).

If the ringtone of the terminal detected through the internal microphone is less than 65dB, after counting the number of times every 1 second (S115), if more than two times, the user determines that the phone is taken out of the bag to make a call and the ringtone sound of The output is terminated (S116 to S118).

Of course, when the ringtone sound pressure of the terminal detected through the internal microphone is 65dB or more (S113), or when the number of times the ringtone sound pressure is 65dB or less is less than twice, the ringtone sound is restored by restoring the current ringtone (SPL) sound pressure (S114). , S117).

For reference, the ringtone sound output from the device of the present invention may be implemented using a MIDI chip so that a terminal user who supports only a single phone sound can use polyphony, It can also support new features that weren't available in existing devices, such as using voice or CD music as ringtones.

In addition, by adding a function that allows the user to adjust the sound of the device to suit the user's environment, it is possible to prevent excessive sound generated by the device.

As described above, the ringtone amplification apparatus of the mobile communication terminal according to the present invention has an effect of easily detecting whether a call is received by detecting and amplifying the ringtone of the terminal when the terminal is put in a bag or a pocket.

In addition, the present invention is not possible to raise the ring size beyond a certain level due to the law restrictions on the ring size of the mobile phone and the size of the speaker used in the mobile phone, by simply mounting such a separate device in the handbag It is effective to compensate for the reduction of ringtones caused by putting the mobile phone in the handbag within the range without causing inconvenience to others.

In addition, since it operates by detecting the sound pressure of the ringtone, there is an effect that can be used regardless of the type of the terminal.

Claims (4)

A ringtone detector for detecting a ringtone occurring in the mobile communication terminal; An external microphone unit for measuring sound pressure outside the bag into which the terminal is placed or sound pressure of a ring tone output to the outside of the bag; A control unit for automatically adjusting the size of the initial ringing of the device according to the degree of noise of the surrounding environment and automatically limiting the size of the ringing to the outside of the bag without disturbing others through the external microphone unit; And a sound generating unit for generating a ring tone sound by the controller. The mobile terminal of claim 1, wherein the controller measures an external noise level through an external microphone unit before the ringer rings, and controls the terminal to output a ringtone sound amplified by a predetermined sound pressure higher than the sound pressure of the noise. Ringtone amplification device for communication terminals. The apparatus of claim 1, wherein the controller is configured to generate a sound by turning on the sound generator when the ringtone of the terminal is maintained for a predetermined time or more by a predetermined sound pressure, and the sound gradually increases as time passes based on the sound size set by the user. Ring amplification device of a mobile communication terminal, characterized in that for controlling. The method of claim 1, wherein the control unit lowers the ringtone sound output from the device at a predetermined time interval (1 second) to a predetermined sound pressure (50 dB) or less for a predetermined time (10 ms) after outputting the amplified ringtone sound by detecting the ringtone. When the volume of the sound input through the ringtone detection unit is compared with the operation reference sound pressure (65 dB), and measured continuously a predetermined number of times (2 times) below the reference sound pressure (65 dB), the user determines that the terminal is removed from the bag and amplified. And a ring tone amplifying device for outputting the ring tone sound output.