JP2002171308A - Incoming sound controller for portable communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an incoming sound controller for portable communication terminal, with which an optimal call environment can be provided all the time regardless of the level of noise. SOLUTION: Ambient noise collected by a microphone 11 is detected by a detection part 3, the result is compared with a reference value by a comparing part 22 and the high/low level of noise is discriminated. Corresponding to the discriminated result of the noise level, the frequency dividing number of an internal oscillator in a variable frequency dividing part 5 is determined and in the case of high noise level, the incoming sound quality of high frequency (high-pitched sound) is set but in the case of low noise level, the incoming sound quality of low frequency (low-pitched sound) is set. Besides, the noise level discriminated result is reported to a variable sound volume part 21 as well, setting is executed for increasing the volume of incoming sound in the case of high noise level and setting is performed for decreasing the volume of incoming sound in the case of low noise level.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mobile phone and a PDA (Personal Digital Assembly) in a mobile communication system.
The present invention relates to a ring tone adjusting device for a portable communication terminal suitable for use in a portable communication terminal such as a device.

[0002]

2. Description of the Related Art Conventionally, as a method of adjusting the tone quality of a ring tone in a portable communication terminal of this type, Japanese Patent Laid-Open No.
There is one disclosed in Japanese Patent Application Publication No. 0-205. FIG. 3 is a block diagram showing a configuration of a ring tone quality control device disclosed in the publication. This conventional ring tone quality control device 1 includes a switch 2, a detection unit 3, a comparison unit 4, and a variable frequency division unit 5, and includes an oscillator 8 for outputting a ring signal of a mobile communication terminal and a speaker. It is provided between the amplifier 9 and the microphone amplifier 12.

In such a configuration, when the switch 2 is turned on, noise in the surrounding environment picked up by the microphone 11 and amplified to a predetermined level by the microphone amplifier 12 is detected by the detection unit 3. Then, the detection output and a predetermined reference value are compared by the comparison unit 4. If the detection output is less than the reference value, the ring tone signal from the oscillator 8 is input to the variable frequency division unit 5 because there is little noise. The frequency is divided by the frequency division number m, and a low-frequency ringtone is output from the speaker 10 through the speaker amplifier 9. On the other hand, if the detection output is equal to or higher than the reference value, a high frequency ringtone is output from the speaker 10 because there is much noise.

[0004] In the ringtone sound quality control device 1, reference numeral 6 is a ringtone input terminal to which a ringtone signal from the oscillator 8 is input, and reference numeral 7 is a transmission voice input terminal.

[0005]

However, in a conventional ring tone quality control device for a portable communication terminal, the ring tone may not be heard due to the surrounding noise condition only due to a change in tone quality. Is adjusted, but there is a problem that the ringtone volume may be too high depending on the situation, which may disturb the surroundings. Also, the adjustment of the ringtone must be performed according to a predetermined operation procedure, which is troublesome for a person who is not good at operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ring tone adjusting device for a portable communication terminal which can always provide an optimal communication environment regardless of the level of noise.

[0007]

According to the present invention, there is provided a ring tone adjusting apparatus for a portable communication terminal, comprising: a noise detecting means for detecting an ambient noise level; an input level of the ambient noise detected by the noise detecting means; Comparison means for comparing a reference level, a sound quality changing means for changing the sound quality of the ringtone by changing the frequency of the existing ringtone signal according to the comparison result of the comparison means, A volume changing means for changing the volume level of the existing ring tone.

According to this configuration, the tone quality and the volume of the ringtone are simultaneously changed according to the surrounding noise level, so that it becomes easier to recognize as compared with the conventional ringtone, and the volume of the ringtone is automatically adjusted. This makes it possible to provide a comfortable call environment even for those who are not good at operation.

The ring tone adjusting device for a portable communication terminal according to the present invention includes a noise detecting means for detecting an ambient noise level, and an input level of the ambient noise detected by the noise detecting means and a predetermined reference level. Comparing means for comparing, sound quality changing means for changing the sound quality of the ring tone by changing the frequency of the existing ring tone signal according to the comparison result of the comparing means, and the existing ring tone according to the comparison result of the comparing means And a receiving sound volume adjusting means for changing the receiving sound volume level during a call according to the comparison result of the comparing means.

According to this configuration, the sound quality and volume of the ring tone and the volume level of the incoming call during a call are simultaneously changed in accordance with the ambient noise level. Since the sound volume is automatically adjusted, a comfortable call environment can be provided even for those who are not good at operation.

[0011] The recording medium of the present invention is a computer-readable recording medium storing a ring tone adjusting program, wherein the ring tone adjusting program detects a noise level by using a noise detecting means to detect an ambient noise level. A level detection procedure, and changing the frequency of the existing ring tone signal in the sound quality changing means according to a comparison result of the comparing means for comparing the input level of the ambient noise detected by the noise detecting means with a predetermined reference level. And a volume changing step of changing the volume level of the existing ring tone in the volume changing unit according to the comparison result of the comparing unit.

Further, the recording medium of the present invention is a recording medium which stores a ring tone adjusting program and is readable by a computer, wherein the ring tone adjusting program detects an ambient noise level using noise detecting means. Noise level detection procedure, and the frequency of the existing ring tone signal in the sound quality changing means according to the comparison result of the comparison means for comparing the input level of the ambient noise detected by the noise detection means with a predetermined reference level. A sound quality changing step of changing the sound quality of the ringtone by changing the sound quality, a volume changing step of changing the volume level of the existing ringtone in the volume changing means according to the comparison result of the comparing means, and a comparison result of the comparing means. Receiving sound volume adjusting means for changing the receiving sound volume level in the receiving sound volume adjusting means accordingly.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The gist of the present invention is to detect a noise level with a microphone, compare the detected noise level with a predetermined reference level, and simultaneously change the sound quality and volume of the ringtone according to the result. That is.

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

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a ring tone adjusting device for a portable communication terminal according to Embodiment 1 of the present invention. In this figure, the same parts as those in FIG. 3 described above are denoted by the same reference numerals.

The ring tone adjusting device 20 according to the present embodiment includes a variable volume section (volume changing means) 21 in addition to the same configuration as the conventional ring tone quality adjusting device 1. Variable volume unit 2
In the comparison result of the comparison unit (comparison means) 22, if the detection output of the detection unit 3 is less than the reference value, the noise level is determined to be low and the volume level of the existing ring tone is reduced. Assuming that there is a lot of noise, the volume level of the existing ring tone is increased.

The comparison unit 22 is capable of externally adjusting a reference value. Ring tone adjusting device 20 of the present embodiment
Is provided with a switch 23 that allows the user to select to pass the existing ringtone signal through the apparatus without any processing. The speaker amplifier 9, the speaker 10, the microphone (noise detecting means) 11, and the microphone amplifier 12
Is provided in the mobile communication terminal in advance.

Next, the ring tone adjusting device 20 having the above-described configuration.
Will be described. First, the audio signal of the ambient noise picked up by the microphone 11 is amplified to a predetermined level by the microphone amplifier 12 and then detected by the detection unit 3. The detection signal from the detection unit 3 is compared with a reference value by the comparison unit 22 to determine a large / small relationship. As described above, the reference value can be arbitrarily set by the user. The frequency division number of the internal oscillator of the variable frequency dividing section (sound quality changing means) 5 is determined from the noise level discrimination result in the comparing section 22, and if the noise level is high, the sound quality of the high frequency (treble) ringtone is set. If the noise level is low, the tone quality of the low frequency (low tone) ringtone is set.

The result of the noise level discrimination is simultaneously output from the variable sound volume unit 2.
1, the sound volume for increasing the output level of the speaker amplifier 9 is set if the noise level is high, and the sound volume for decreasing the output level of the speaker amplifier 9 is set if the noise level is low. Then, a ringtone corresponding to each setting is output from the speaker 10.

As described above, according to the ring tone adjusting device 20 of the present embodiment, the variable frequency divider 5 that can vary the sound quality of the ring tone according to the ambient noise level, and the user can arbitrarily set the reference value. A comparison unit 22 capable of changing the volume of the ringtone and a variable volume unit 21 that can vary the volume of the ringtone in accordance with the ambient noise level. A call environment is obtained.

In the first embodiment, all may be assembled by hardware, or may be assembled by software using a microcomputer. In the case of assembling with software, the following procedure, ie, a noise level detection procedure for detecting the ambient noise level using the microphone (noise detection means) 11, the input level of the ambient noise detected by the microphone 11 and a predetermined reference level Comparison section (comparison means) 27 for comparison
The sound quality changing procedure for changing the frequency of the existing ring tone signal in the variable frequency divider (sound quality changing means) 5 in accordance with the comparison result to change the sound quality of the ring tone, It is also possible to use a recording medium storing the ring tone adjustment program created in “Volume changing procedure for changing the volume level of an existing ring tone in the unit (volume changing means) 21”. As this recording medium, a semiconductor element,
Examples include a magnetic storage medium, an optical storage medium, and a magneto-optical storage medium.

(Embodiment 2) FIG. 2 is a block diagram showing a configuration of a ring tone adjusting device for a portable communication terminal according to Embodiment 2 of the present invention. In this figure, the same parts as those in FIG. 2 described above are denoted by the same reference numerals. The ring tone adjusting device 25 of the present embodiment includes the same configuration as the ring tone adjusting device 20 of the first embodiment, and further includes a variable received sound volume unit (received sound volume adjusting means) 26. Variable receiving volume 2
6 indicates that the comparison result of the comparison unit 27 indicates that if the detection output of the detection unit 3 is less than the reference value, the reception sound volume level is determined to be low in noise, and if the detection output is not less than the reference value, the reception volume level is determined to be high. To increase.

The comparison section 27 is a comparison section of the first embodiment.
Similarly, the reference value can be adjusted from outside. Further, the ring tone adjusting device 25 of the present embodiment includes a switch 28 that can select to pass the device without any processing on the received signal. Note that, also in the present embodiment, the speaker amplifier 9, the speaker 10, the microphone 11, and the microphone amplifier 12 are provided in the portable communication terminal in advance.

Next, the ring tone adjusting device 25 having the above configuration.
Will be described. First, the audio signal of the ambient noise picked up by the microphone 11 is amplified to a predetermined level by the microphone amplifier 12 and then detected by the detection unit 3. The detection signal from the detection unit 3 is compared with a reference value by the comparison unit 27, and a large / small relationship is determined. Then, the frequency division number of the internal oscillator of the variable frequency division unit 5 is determined from the result of the noise level determination by the comparison unit 27. If the noise level is high, the sound quality of the high frequency (treble) ringtone is set,
If the noise level is low, the tone quality of the low frequency (low tone) ringtone is set.

The result of the noise level discrimination is simultaneously output from the variable sound volume unit 2.
1, the sound volume for increasing the output level of the speaker amplifier 9 is set if the noise level is high, and the sound volume for decreasing the output level of the speaker amplifier 9 is set if the noise level is low. Then, a ringtone corresponding to each setting is output from the speaker 10.

Further, the result of the noise level discrimination is also notified to the variable receiving sound volume section 26, and a volume for increasing the output level of the speaker amplifier 9 is set. If the noise level is low, the volume for decreasing the output level of the speaker amplifier 9 is set. Is set. That is, if the noise level is high, the receiving sound volume level is raised, and if the noise level is low, the receiving sound volume level is lowered.

As described above, according to the ring tone adjusting device 25 of the present embodiment, the variable frequency divider 5 that can vary the sound quality of the ring tone according to the ambient noise level, and the user can arbitrarily set the reference value. A comparison unit 27, a variable volume unit 21 that can vary the volume of the ringtone according to the ambient noise level, and a reception volume unit 26 that can vary the reception volume according to the ambient noise level. The ringtone sound quality, ringtone volume, and receiving volume according to the situation can be set, and a more comfortable calling environment can be obtained.

In the first embodiment, all may be formed by hardware, or may be formed by software using a microcomputer. In the case of assembling with software, the following procedure, ie, a noise level detection procedure for detecting the ambient noise level using the microphone (noise detection means) 11, and the input level of the ambient noise detected by the microphone 11 and a predetermined reference level Comparison section (comparison means) 27 for comparison
The sound quality changing procedure for changing the frequency of the existing ring tone signal in the variable frequency divider (sound quality changing means) 5 in accordance with the comparison result to change the sound quality of the ring tone, and the variable sound volume in accordance with the comparison result of the comparison unit 27 Volume changing procedure for changing the volume level of an existing ring tone in the section (volume changing means) 21, comparing section 27
It is also possible to use a recording medium in which the ring tone adjustment program created in "Received sound volume adjusting procedure for changing the received sound volume level in the variable received sound volume unit (received sound volume adjusting means) 26 in accordance with the comparison result" is stored. Examples of the recording medium include a semiconductor element, a magnetic storage medium, an optical storage medium, and a magneto-optical storage medium.

[0029]

As described above, according to the present invention,
Since the sound quality and volume of the ringtone and the receiving volume are automatically set according to the surrounding noise situation, a more comfortable calling environment can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a ring tone adjusting device of a portable communication terminal according to Embodiment 1 of the present invention.

FIG. 2 is a block diagram showing a configuration of a ring tone adjusting device for a portable communication terminal according to Embodiment 2 of the present invention;

FIG. 3 is a block diagram showing the configuration of a conventional ring tone quality control device for a portable communication terminal.

[Explanation of symbols]

 Reference Signs List 3 detection unit 5 variable frequency division unit 9 speaker amplifier 10 speaker 11 microphone 12 microphone amplifier 20, 25 ringtone adjustment device 21 variable volume unit 22, 27 comparison unit 23, 28 switch 26 variable reception volume unit

Claims (4)

[Claims] 1. A noise detecting means for detecting an ambient noise level, a comparing means for comparing an input level of the ambient noise detected by the noise detecting means with a predetermined reference level, and a comparison result of the comparing means. Sound quality changing means for changing the frequency of the existing ring tone signal to change the sound quality of the ring tone, and volume changing means for changing the volume level of the existing ring tone according to the comparison result of the comparing means. A ring tone adjusting device for a mobile communication terminal. 2. A noise detecting means for detecting an ambient noise level, a comparing means for comparing an input level of the ambient noise detected by the noise detecting means with a predetermined reference level, and a comparison result of the comparing means. Sound quality changing means for changing the sound quality of the ring tone by changing the frequency of the existing ring tone signal in response to the sound signal; volume changing means for changing the volume level of the existing ring tone in accordance with the comparison result of the comparing means; A receiving sound volume adjusting means for changing a receiving sound volume level during a call according to a comparison result of the means; 3. A computer-readable recording medium storing a ring tone adjusting program, the ring tone adjusting program comprising: a noise level detecting step of detecting an ambient noise level using a noise detecting means; The sound quality of the ringtone is changed by changing the frequency of the existing ringtone signal in the sound quality changing means according to the comparison result of the comparison means for comparing the input level of the ambient noise detected by the noise detection means with a predetermined reference level. And a volume changing step of changing a volume level of an existing ring tone in the volume changing unit according to a comparison result of the comparing unit. 4. A computer-readable recording medium storing a ring tone adjusting program, the ring tone adjusting program comprising: a noise level detecting step of detecting an ambient noise level using noise detecting means; The sound quality of the ringtone is changed by changing the frequency of the existing ringtone signal in the sound quality changing means according to the comparison result of the comparison means for comparing the input level of the ambient noise detected by the noise detection means with a predetermined reference level. A sound quality changing procedure for changing the volume level of an existing ringtone in the volume changing means according to the comparison result of the comparing means, and a receiving sound volume adjusting means according to the comparison result of the comparing means. A receiving sound volume adjusting step of changing a receiving sound volume level.