JP2000013472A - Portable radio telephony equipment and ring back tone volume control method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically control the ring back tone of a portable telephone set corresponding to environments so as not to render uncomfortable feelings to surrounding persons. SOLUTION: When there is a call, the sound pressure of output due to environment from a microphone 1 for transmission is detected by a sound pressure level detector 2 and an MPU 5 determines the output volume so that the stronger the sound pressure level is, the higher the output volume of a ringer 3 is and the weaker the level is, the lower the output volume of the ringer is. Then, a ringer sound pressure regulator 4 is controlled by that determined volume, the ringer 3 is sounded and calling is reported.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone radio and a calling volume control method thereof.

[0002]

2. Description of the Related Art Mobile radios, particularly mobile phones, have become widespread. When a call is made on the mobile phone, a ringing tone is output to notify a user. The volume of the ring tone is set by the user in the mobile phone, and the volume of the ring tone does not change unless this setting is changed.

[0003]

Generally, the volume of the ringing tone is set so that it can be heard even in a loud area such as a downtown area. However, when you are in a quiet place, such as a toilet or a library, such a setting can cause discomfort to those around you. The only way to avoid this was to change the volume setting when moving to a quieter location, or to keep the volume setting always low. Changing the volume setting when moving can be bothersome and sometimes forgotten. Also, if you keep the volume low, you may not notice the call in a noisy place.

[0004] It is an object of the present invention to provide a portable telephone radio having a function of automatically adjusting the volume of a ringing tone according to the use environment, and a method of controlling the ringing volume thereof.

[0005]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a sound pressure level detector for detecting a sound pressure level output from a microphone for a call during a non-call, and a caller. The sound pressure level detected by the sound pressure level detector is fetched when the sound pressure level is higher, and the higher the sound pressure level, the higher the ringer output volume, and the lower the sound pressure level, the lower the ringer output volume. And a ringer volume adjusting means for making a ringer sound at the volume set by the means and informing the user of the call. Offer machine.

Further, the present invention detects a sound pressure level outputted from a telephone call microphone when a call is made,
The ringing volume output from the ringer is increased as the sound pressure level is increased, and the ringing volume is controlled to be decreased as the sound pressure level is decreased. provide.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a circuit configuration of a portable telephone radio set according to the present invention, and shows parts related to the present invention. In FIG. 1, an MPU 5 controls the entire operation of the mobile phone radio, and operates using a part of the memory 6 as a work area. The transmitting / receiving unit 7
Under the control of U5, the audio signal input from the microphone 1 is converted into a radio frequency signal and transmitted from the antenna 9, and an audio signal is extracted from the received radio frequency signal and output to the speaker 8. In addition, transmission and reception of various control signals for line connection and transfer to the MPU 5 are also performed. Ringer 3
Outputs a ringing tone with the volume adjusted by the ringer volume adjuster 4 connected to the bus 10.

In the conventional apparatus, the setting of the output volume of the ringer volume controller at the MPU 5 is performed by operating the keys on the operation panel. In the present invention, this setting is automatically performed. The sound pressure level detector 2 is connected to the bus 10 so that the output sound pressure level of the microphone 1 can be detected. That is, the sound pressure level detector 2 detects the sound pressure level output from the microphone 1 and outputs sound pressure data (digital signal) representing the sound pressure level to the MPU 5.

FIG. 2 is a flowchart showing a setting operation of the ring volume, which is executed by the MPU 5. In this process, it is determined whether or not there is a call to the mobile phone wireless device (step 21), which is detected by the MPU 5. When there is a call ("Yes" in step 21), the sound pressure level output from the microphone 1 at that time is taken as sound pressure data P from the sound pressure level detector 2 (step 22). The sound pressure data P represents the environment at that time, and the higher the level is, the more noisy it is, and the smaller the level is, the quieter it is. Therefore, this sound pressure data is measured in advance in various environments, and N threshold values P1>
P2 >> ... PN-1 is determined and stored in the memory 6. Also, for each of these threshold values, if P> P1, the volume of the output of the ringer 3 is V1; if P1 ≧ P> P2, the volume of the output of the ringer 3 is V2; The volume is assumed to be VN, and the magnitudes of these V1 to VN are set to values that are sufficiently audible under the environment at that time and that are as small as possible. Of course V1>V2> ...
> VN, and the values of V1 to VN are experimentally obtained in advance and stored in the memory 6.

Returning to the flowchart of FIG. 2, when the sound pressure data P is fetched, the control parameter j is set to 1 (step 23), and it is checked whether j is equal to or greater than N (step 24).
Here, N is the number of the output volume levels V1 to VN described above. If j <N, it is checked whether or not the received sound pressure data P exceeds Pj (step 25), and if so, the volume of the output of the ringer 3 is set to Vj (step 26), and this volume Vj To ring the ringer 3 (step 28), and terminates the processing. In step 25, P ≦ P
If j, that is, the sound pressure data P is equal to or less than Pj, j is incremented by 1 (step 27), and the process returns to step 24. If j ≧ N in step 24, the output volume is set to VN (step 26), the ringer 3 sounds at this volume VN (step 28), and the process ends.

As described above, when the output volume of the ringer 3 is automatically adjusted, the higher the sound pressure level of the environment is,
Since the ringer output volume is set to increase,
Even if the user does not perform a setting operation according to the environment, it is possible to always notify the user of the incoming call with an appropriate ringer output volume, and it is possible to prevent discomfort to surrounding people. In order to realize these functions, the sound pressure level detector 2 and a program for executing the processing of FIG. 2 may be added, and the functions can be realized at low cost. The number N of the output volume levels V1 to VN and their respective values, and the sound pressure levels P1 to PN
If each value or the like of PN-1 can be set or corrected by key operation, a more convenient output volume level can be obtained.

[0012]

According to the present invention, the level of the ringer output sound can be automatically adjusted in accordance with the environment, so that there is no need to worry about discomfort to surrounding people without having to perform a time-consuming key operation, and it is easy to use. This has the effect of realizing a mobile phone radio with good performance.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration example of a mobile phone wireless device according to the present invention.

FIG. 2 is a flowchart of a ringer output volume automatic adjustment process.

[Explanation of symbols]

 Reference Signs List 1 microphone 2 sound pressure level detector 3 ringer 4 ringer volume controller 5 MPU 6 memory

Continued on the front page F term (reference) 5K027 AA11 BB02 DD18 FF03 FF25 FF29 5K067 BB04 EE02 FF13 FF27 FF32 FF34 GG11

Claims (2)

[Claims] 1. A sound pressure level detector for detecting a sound pressure level output from a telephone call microphone during a non-call, and a sound detected by the sound pressure level detector when a call is received. Volume setting means for taking in the pressure level, setting the ringer output volume to a larger value as the sound pressure level is larger, and setting the ringer output volume to a smaller value as the sound pressure level is smaller, and a volume set by the means. A ringer volume adjusting means for ringing a ringer to inform the user of the call. 2. A sound pressure level output from a telephone call microphone when a call is made, and the ringer volume output from the ringer is increased as the sound pressure level increases. A ringing volume control method for a cellular phone radio, wherein the ringing volume is controlled so as to be smaller.