KR20000041906A - Method for adjusting output volume of portable terminal - Google Patents

Abstract

PURPOSE: A method for adjusting an output volume of a portable terminal is provided to automatically adjust a volume intensity of other side output to a speaker, according to a volume intensity of an user inputted by a microphone, when the user is connected with the optional other side to speech. CONSTITUTION: A method for adjusting an output volume of a portable terminal comprises the steps of: if a call is connected by a user' demand or other side' demand, being decided whether a current using mode is set up to a mode for automatically adjusting a receiving volume by a controller of a user' portable terminal; if not, outputting a receiving volume of other side which is adjusted to a normal state, and if so, analyzing a predetermined qualification to authorize the analyzed qualification to a modulator/demodulator which modulates and demodulates a transceiving signal; being detected a transmitting volume of the user inputted from a microphone by the modulator/demodulator received the qualification for automatically adjusting the receiving volume, and being set up a level adjustment of the receiving volume according to the qualification; and amplifying a received signal to a corresponding level by predetermined adjustment level information of the receiving volume, in a step of converting the received signal into an analog signal, and outputting to a speaker.

Description

How to adjust output volume of portable terminal

The present invention relates to a portable terminal, and more particularly, to a portable terminal configured to automatically adjust the voice size of a counterpart output through a speaker according to a voice size of a user inputted into a microphone in a state where a call is connected to an arbitrary counterpart. An apparatus and method for adjusting output volume.

In general, as shown in FIG. 1, a general portable terminal for wirelessly executing a call through a relay of a base station includes an antenna ANT, a duplexer 10, a transmission / reception processing unit 20, a control unit 30, A codec 40, a key input unit 50, amplification units 60 and 70, and a microphone (MIC) and a speaker (SPK) which are handsets. Transmit and receive on radio frequency.

The duplexer 10 switches the signal flow so that the transmitted signal and the received signal do not collide with each other during the process of transmitting and receiving wireless data with the base station through the antenna ANT.

The transmission and reception processing unit 30 performs low noise amplification on the signal received through the duplexer 10 to extract noise at the same time as the intermediate frequency, extracts only the pure received signal, and is suitable for transmitting the user's transmission signal at a radio frequency. Process it as a state and output it.

The controller 30 controls the overall operation of the signal transmitted and received and the use of the portable terminal.

The codec 40 processes digital PCM (Pulse Code Modulation) signal of the analog state transmitted by the user and applies it to the control unit 30, and receives the received digital PCM signal as an analog signal suitable for output to voice. Process.

The amplifying unit 60 amplifies a received voice signal that is processed and applied analog by the codec 40 to a predetermined predetermined level and outputs it through a speaker SPK, and transmits a user's voice input to a microphone MIC. The signal is amplified to a predetermined level and applied to the codec 40 side.

The key input unit 50 has a ten key (0-9) for inputting a telephone number of the other party to be connected to a call and a predetermined function key for inputting an overall operation request. Output the signal.

The operation of the portable terminal having the functions as described above is as follows.

The voice signal of the user, which is input to the microphone (MIC) in a state of being connected to any other party through a relay of a base station not shown by the user's request or the request of any other party, is converted into an electrical signal and then amplified unit 70 Is amplified to a predetermined level and applied to the codec 40. The codec 40 converts an input analog signal into a pulse code modulation (PCM) digital signal and applies it to the control unit 30. The control unit 30 transmits the applied PCM digital signal to a predetermined state through the transmission / reception processing unit 20. After transmitting to the radio frequency through the duplexer 20 and the antenna ANT that adjusts so that the collision of the transmitted and received signal is not transmitted and transmits to the other party connected by the relay of the base station.

In addition, when a signal received from the base station through the antenna ANT is transmitted to the transmission and reception processing unit 20 side through the duplexer 10, the transmission and reception processing unit 20 processes the received received signal and then controls the control unit 30. The signal is applied to the codec 40 side.

At this time, the codec 40 receiving the received signal through the control unit 30 converts the PCM digital signal into an analog signal and then amplifies the signal to a predetermined level set by the amplifier 60 to the user through the speaker SPK. Send it out.

When the user cannot listen to the volume of the other party, which is output through the speaker (SPK) due to a large amount of ambient noise in the area using the portable terminal while executing a call with the other party connected to the call as described above, the user When the volume up / down key provided in the portable terminal key input unit 50 is operated, a signal of the key input unit 50 is applied to the control unit 30.

At this time, the controller 30 analyzes the volume up / down signal of the key input unit 50 and then provides information about the volume intensity adjustment to the codec 40 to execute the volume intensity adjustment during demodulation of the received signal. SPK) Adjust the volume level.

As the conventional portable terminal as described above is fixed so that the set volume is always output, when the user cannot normally hear the volume received during the call with any party connected to the call, the user may make a loud voice without knowing it. There is a problem that causes discomfort to the people around, there is a problem that the user must execute a separate key input to adjust the volume of the volume output to the speaker in a call state.

In addition, the amplification level of the amplifying means for amplifying the received signal in order to adjust the volume output to the speaker is set in hardware by the peripheral circuit constant has a problem that there is a limit to the variable volume.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described general problems, and an object thereof is to provide a user's own voice level according to the voice level of a user who is input into a microphone without executing an external key input while executing a call with any party connected to a call. The level of the volume output to the speaker is automatically adjusted to provide convenience for the use of the portable terminal, and to secure the optimal reception volume at all times to provide a good communication feeling.

1 is a general block diagram of a portable terminal,

2 is an operation flowchart for performing output volume adjustment of the portable terminal according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: duplexer 20: transmission and reception processing unit

30: control unit 40: codec

50: key input unit

The present invention for achieving the above object is a method for adjusting the reception volume of a portable terminal, when the call connection is formed by the user's request or the request of the other party, the control means of the user's portable terminal indicates that the current use mode is the received volume. Determining whether the mode is set to the automatic adjustment mode, and if the reception volume automatic adjustment mode is not set as described above, adjusts the reception volume of the other party to the normal state and outputs it to the normal state. If the set state is set, analyzing the set condition and applying the condition to the demodulation means for modulating and demodulating the transmission / reception signal, and the modulation / demodulation means receiving the condition of the automatic adjustment of the received volume is the user's transmission volume input from the microphone. Is detected and then the received volume level is adjusted according to the above conditions. And a step of including the set received volume adjustment level information in a process of modulating a received signal into an analog signal to be amplified to a corresponding level in an amplification process by an amplifying means and outputting the same to a speaker. do.

Hereinafter, an operation for automatic output volume adjustment in a portable terminal according to the present invention will be described with reference to the accompanying drawings.

As can be seen in Figures 1 and 2, in the call standby mode in which power is supplied to a portable terminal according to the present invention, the control unit 30 is connected to an arbitrary counterpart by a call connection request from the other party or a user's selection. It is determined whether the call connection is made (S101, S102).

When it is determined that the call connection is made through the relay of the base station (not shown) with any other counterpart, the controller 30 determines whether the current mode of the portable terminal is set to a mode for automatic adjustment of the received volume ( S103).

If the portable terminal is not set to the mode for automatic adjustment of the reception volume, the transmission and reception of the voice call is performed in a normal operation (S104), and the portable terminal is set to the mode for automatic adjustment of the reception volume. If it is determined, the controller 30 analyzes the set adjustment mode and then enters the corresponding mode (S105) and applies a control signal for automatic adjustment of the received volume to the codec 40.

As described above, when the control signal for automatic adjustment of the received volume is applied to the codec 40 side, the control signal is converted into an electrical signal from the microphone MIC, and then amplified to a predetermined level through the amplifier 70. When the transmission volume is detected by the codec 40, the codec 40 analyzes the level of the user's transmission volume and adjusts the volume level during the demodulation operation of the other party's voice according to the control signal applied from the controller 30. The intensity transmitted to the speaker SPK is adjusted (S106).

In the demodulation process using the codec 40, the automatic adjustment of the volume of the reception is performed when the user's transmission voice input to the microphone MIC is detected to be loud and the volume of the volume received from the counterpart is output to the speaker SPK. If the user's transmission voice input to the microphone (MIC) decreases, the size of the user may increase or decrease the volume.

The control unit 30 in a state in which the level of the volume received from the other party and output to the speaker SPK is automatically adjusted according to the size of the user's transmission voice input to the microphone MIC as described above to maintain an optimal call feeling. If the currently connected call is detected to be disconnected (S107), the current call mode is terminated and then enters the standby mode and waits for a new call to be connected (S108).

As described above, according to the present invention, since the reception volume of the other party transmitted to the speaker is automatically adjusted according to the size of the user's transmission voice in the portable terminal, the cumbersome operation for adjusting the reception volume is excluded, which is convenient for use in a noisy area. And reliability is provided, and reliability is provided for use by providing a call in a state that does not cause discomfort to surrounding people according to the use environment of the portable terminal.

Claims (3)

In the receiving volume adjusting method of the portable terminal, when a call connection is made by the request of the user or the request of the other party, the control means of the user portable terminal determines whether the current use mode is set to the mode for automatic adjustment of the receiving volume. Process; If the volume is not set to the automatic reception volume control mode, the reception volume of the other party to be received is adjusted and output in a normal state. If the volume is set to the automatic volume control mode, the set condition is analyzed and transmitted and received. Applying to a demodulation means for modulating and demodulating a signal; The demodulation means for receiving the condition of the automatic adjustment of the reception volume detects the transmission volume of the user input from the microphone, and sets the adjustment of the reception volume level according to the condition; And a step of including the set received volume adjustment level information in the process of modulating the received signal into an analog signal so as to be amplified to the corresponding level in the amplification process by the amplifying means, and outputting the same to the speaker. How to adjust the volume. The method of claim 1, wherein the automatic adjustment setting of the received volume outputted by the user increases or decreases the received volume to be transmitted to the speaker when the user's transmitted voice is increased. 2. The method of claim 1, wherein the automatic adjustment of the received volume outputted by the controller further increases or decreases the received volume transmitted to the speaker when the user's voice input into the microphone is reduced. .