JPH114281A - Telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an appropriate changeover of an incoming sound volume and a receiving speed volume in accordance with its volume by detecting surrounding sound volume with a high precision by a dedicated non-oriented microphone for collecting surrounding sound of a telephone set. SOLUTION: When an automatic incoming sound volume switch is set to be off, it is possible for a user to manually set the incoming sound volume or a receiving speed volume by using an operation part 10. When the automatic incoming sound volume switch is set to be on, a communication protocol part 12c confirms an operation mode, and when it is in a waiting mode, the communication protocol part switches a changeover switch 7 by way of a hard ware control part 12a, selects a non-directional microphone 6 and collects surrounding sound for a fixed time (several mS), while a sound/data processing part 3 calculates an average surrounding sound volume level within a collecting sound time, makes the volume of the incoming sound to be rung at a bell part 8 maximum when the value is bigger than a predetermined threshold value, and permits vibration incoming by using a vibrator 9 when the value is smaller than the threshold value. At the time of speech mode, a directional microphone 5 is automatically selected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a telephone,
In particular, the present invention relates to a portable telephone which is convenient for carrying.

[0002]

2. Description of the Related Art In recent years, the number of users of portable telephones has been increasing rapidly along with the reduction in communication fees and terminal costs, and the range of use has been steadily expanding.

[0003] However, recently, due to its easiness of handling, problems concerning manners of use have been widely taken up. For example, a sudden call in a quiet place such as a conference or a ceremony, or a loud call using a mobile phone.

[0004] These problems can be basically prevented if the user himself is careful, but it is a fact that it is difficult to actually carry out these problems.

[0005] In view of the above, there has been proposed a telephone capable of adjusting the ringing volume or the like according to the surrounding volume. For example, Japanese Patent Application Laid-Open No. 7-231276 discloses a "portable wireless telephone device", Japanese Patent Application Laid-Open No. 6-284172 discloses a "telephone", Japanese Patent Application Laid-Open No. 8-163209
Japanese Patent Application Laid-Open No. 8-237153, "Paging volume automatic setting device" and the like.

[0006]

However, the above-mentioned prior art has not made a drastic improvement in the measurement of ambient noise, and only discusses how to process the measurement result of the ambient sound volume.

[0007] In view of such a problem, an object of the present invention is to provide:
It is an object of the present invention to provide a telephone capable of accurately detecting a surrounding noise amount and appropriately switching a ringtone volume / reception volume.

[0008]

According to one aspect of the present invention, there is provided a telephone, comprising: a directional microphone for inputting a voice of a user of the telephone; and a sound surrounding the telephone. Omnidirectional microphone for collecting a sound, a ringtone generating unit that emits a ringtone, and a control processing unit that switches a ringtone volume of the ringtone generating unit according to an ambient volume obtained through the omnidirectional microphone. And a telephone provided with:

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention applied to a portable radio telephone will be described below with reference to the drawings.

FIG. 1 is a block diagram of the portable telephone according to the first embodiment.

In FIG. 1, reference numeral 1 denotes a radio unit for transmitting and receiving signals at a high frequency, and 2 converts a high frequency signal from the radio unit 1 to a low frequency signal, and converts a given low frequency signal to a high frequency signal. A modulation / demodulation unit 3 for outputting to the radio unit 1 is a voice / data processing unit for processing a voice signal and calculating an ambient volume.

Reference numeral 4 denotes a speaker for outputting the voice of the other party, 5 denotes a microphone having directivity for inputting the user's own voice (hereinafter referred to as a directional microphone), and 6 denotes a sound around the telephone. An omnidirectional microphone (hereinafter, referred to as an omnidirectional microphone) 7 for collecting sound is a changeover switch for switching between these microphones. Directional microphone 5
As the name implies, is a microphone for capturing sound in a spatial region in a certain direction, and can collect sound from the mouth with high sensitivity. The omnidirectional microphone 6 can collect sound in all directions with high sensitivity.

Reference numeral 8 denotes a ring tone generating unit (hereinafter, referred to as ring tone generating section)
Reference numeral 9 denotes a vibrator for receiving an incoming vibration, 10 denotes an operation unit including operation keys and the like, and 11 denotes a display unit realized by a liquid crystal display or the like.

Reference numeral 12 denotes a control unit for controlling each unit of the mobile phone, 13 denotes a storage unit for storing a telephone number and information unique to the mobile phone, and 14 denotes a sensor for detecting the surrounding environment (in the present embodiment, the sensor of the telephone). A light detection sensor with the light receiving surface facing outward), 15 is a timer for measuring time, and 16 is an antenna.

The control unit 12 includes a hardware control unit 12a for controlling the voice / data processing unit 3 and the changeover switch 7,
Bell unit 8, vibrator 9, operation unit 10, and display unit 11
Interface section 12b serving as an interface for
And a communication protocol unit 12c for realizing a predetermined communication protocol and for ringing a tone or vibrating a vibrator through the interface unit 12b.

FIG. 2 is a flowchart showing the operation of the mobile phone according to the first embodiment.

When the power of the mobile phone is turned on, the mobile phone starts up (S2), a location registration operation is performed with the wireless base station (S3), and the mobile phone shifts to a standby mode (S4). .

When the mode shifts to the standby mode, the communication protocol unit 12c confirms ON / OFF of automatic ringing volume switching (S5). The ON / OFF of automatic ringing volume switching can be manually set by the user using the operation unit 10.

If the automatic incoming call volume switching is set to OFF, the user manually sets the incoming call volume and the incoming call volume using the operation unit 10 (S6). Communication protocol section 12
c confirms whether or not the call button of the operation unit 10 has been pressed (S7). If the call button has been pressed, the mobile phone is shifted to the call mode and the hardware control unit 12a. The changeover switch 7 is switched to select the directional microphone 5 (S8, S9). During a call, the user can manually set the reception volume using the operation unit 10 (S10). When the call ends and the end button of the operation unit 10 is pressed, the mode returns to the standby mode. Unless the end button is pressed, the talking state is maintained (S11).
).

If the automatic incoming call switching setting is set to ON, the communication protocol unit 12c checks whether or not the call button has been pressed (S12). The mode is shifted to the call mode, and the changeover switch 7 is switched via the hardware control unit 12a (S13), and the directional microphone 5 is selected (S14). When the call ends and the end button of the operation unit 10 is pressed, the mode returns to the standby mode. Unless the end button is pressed, the talking state is maintained (S15).

On the other hand, if it is determined in S12 that the call button has not been pressed, the communication protocol unit 12c
While maintaining the standby mode, the hardware controller 12
The changeover switch 7 is switched via a (S16), and the omnidirectional microphone 6 is selected (S17). Omnidirectional microphone 6
Is selected, the timer 15 is turned on via the hardware control unit 12a (S18). Thereafter, surrounding sounds are collected through the omnidirectional microphone 6. Timer 15
Outputs a timeout signal after a lapse of a predetermined time (S20). The output timing of the timeout signal
The communication protocol unit 12c can set arbitrarily. Sound collection by the omnidirectional microphone 6 is performed until a timeout signal is output. After the sound collection, the voice / data processing unit 3 calculates the average value of the surrounding volume levels within a certain time (S21), and determines whether or not the volume level is higher than a predetermined threshold (S21). S22). In the present embodiment, the threshold is set to 85 dB. According to "Decibel story" (by Kenichi Ito), <100% for <under train guard>, 90d for <in a noisy factory>
B, it is said that there is about 80 dB of noise in <subway car> and about 70 dB in <intersection>. Thus, in the present embodiment, the median value of 85 dB is used as the threshold value for determining the sound volume level. Of course, this is only an example, and this value is
Can be changed arbitrarily.

When the surrounding volume level is higher than a predetermined threshold value, the communication protocol unit 12c is instructed to maximize the ringing volume of the ringing sound at the bell unit 8,
The communication protocol section 12c sets the ring volume of the bell section 8 to the maximum value (S23). Conversely, if the volume level is equal to or less than the predetermined threshold, the communication protocol unit 12c instructs the communication protocol unit 12c to make the call a vibration incoming call, and the communication device 12c selects the vibrator 9 (S24). .

The above sequence is repeated until the power is turned off by the power button (S25).
The above sequence is repeatedly executed in the order of several milliseconds, and the setting of the incoming call volume can follow the change of the surrounding situation without difficulty.

As described above, in the mobile phone according to the present embodiment,
The switching timing of the directional microphone 5 and the omnidirectional microphone 6 is controlled by ON / OFF of a call button. The directional microphone 5 always operates in the call mode, and the omnidirectional microphone 6 operates in the standby mode. And measure the ambient volume. The measurement of the ambient sound volume is valid only during the operation of the timer 15 controlled by the control unit 12, and thereafter, the average value of the ambient sound volume over time is calculated. This calculation is performed only in the standby mode, similarly to the measurement of the surrounding sound volume.

The automatic call switching function described above is realized by setting automatic call switching ON in the standby mode. If the automatic incoming call switching is set to OFF, the conventional manual setting using the key buttons or the like of the operation unit becomes possible.

Next, a mobile phone according to a second embodiment will be described. FIG. 3 shows an operation flow. The configuration of the telephone is the same as that of FIG.

In the operation flow of the second embodiment shown in FIG. 3, S2 of the operation flow of the first embodiment shown in FIG.
3. S30 and S31 are adopted instead of S24. The other steps are the same processing steps, and a description thereof will be omitted.

In S30, the voice / data processing unit 3
Sets the receiving volume of the speaker 4 to the maximum value. On the other hand, in S31, the reception volume of the speaker 4 is set to the minimum value. For example, if the other party's voice is not well heard in crowds, the calling side tends to make a loud voice despite the fact that the call quality heard by the other party is clear, but in this embodiment, The receiving sound volume is automatically adjusted according to the surrounding situation, and when the surroundings are noisy, the receiving sound volume is increased accordingly, so that the volume of the caller's voice can be reduced.

Next, a mobile phone according to a third embodiment will be described. FIG. 4 shows an operation flow. The configuration of the telephone is the same as that of FIG.

In the operation flow of the third embodiment shown in FIG. 4, S2 of the operation flow of the first embodiment shown in FIG.
S40 to S45 are adopted instead of 2 to S24.

In S40, the communication protocol unit 12c
Determines whether the light quantity detected by the sensor 14 is larger than a predetermined reference value. This reference value is, for example, when the mobile phone is placed on a desk or the like, the light amount detected by the sensor 14 is larger, and when the mobile phone is stored in a pocket or a bag or the like, , Sensor 1
The light amount detected in step 4 is set to be equal to or less than the reference value.

In S41 and S42, similarly to S22 in FIG. 2, it is determined whether or not the surrounding volume level is higher than a predetermined threshold.

If it is determined in S41 and S42 that the surrounding volume level is higher than a predetermined threshold,
In S43, the incoming call volume and the receiving sound volume are maximized. This is because, for the user, whether the mobile phone is inside or outside the pocket or the like, the incoming call volume should be higher if the surroundings are noisy, and the receiving volume should be higher.

If it is determined in S40 that the detected light amount is larger than the reference value, and if it is determined in S41 that the surrounding volume level is equal to or less than a predetermined threshold value (that is,
In a case where the mobile phone is placed on a desk or the like and the surroundings are quiet), in S44, the incoming call volume and the incoming call volume are minimized, and the vibrating incoming call is set. Thus, when an incoming call is actually received, a call is made at a minimum incoming call volume after a vibration incoming call is made for a while.

If it is determined in S40 that the detected light amount is equal to or less than the reference value, and if it is determined in S42 that the surrounding volume level is equal to or less than the predetermined threshold value (that is, the portable telephone is In such a case, the surroundings are quiet), in S45, the incoming call volume is maximized, the received sound volume is minimized, and the vibration incoming call is set. Thus, when an incoming call is actually received, a call is made at the maximum incoming call volume after a vibration incoming call is made for a while.

Next, a mobile phone according to a fourth embodiment will be described. FIG. 5 shows an operation flow. The configuration of the telephone is the same as that of FIG.

In the operation flow of the fourth embodiment shown in FIG. 5, the operation flow of the third embodiment shown in FIG.
50 and S51 are added.

In S50, it is determined whether or not the light amount detected by the sensor 14 is larger than a reference value. If the amount of light detected by the sensor 14 is larger than the reference value, S5
At step 1, the ring volume is set to the minimum.

In this way, when the user notices the incoming call and takes out the mobile phone from his pocket or the like, the incoming call volume automatically switches from high to low.

[0040]

According to the telephone of the present invention, since a dedicated microphone is provided for collecting surrounding sounds, the surrounding volume can be accurately measured, and the incoming volume and the receiving volume can be accurately switched. .

[Brief description of the drawings]

FIG. 1 is a block diagram of a mobile phone according to a first embodiment of the present invention.

FIG. 2 is a flowchart of the mobile phone according to the first embodiment of the present invention.

FIG. 3 is a flowchart of the mobile phone according to the second embodiment of the present invention.

FIG. 4 is a flowchart of the mobile phone according to the third embodiment of the present invention.

FIG. 5 is a flowchart of the mobile phone according to the fourth embodiment of the present invention.

[Explanation of symbols]

1: wireless unit, 2: modem unit, 3: audio / data processing unit,
4: Speaker, 5: Directional microphone, 6: Non-directional microphone, 7: Changeover switch, 8: Bell part, 9: Vibrator, 1
0: operation unit, 11: display unit, 12: control unit, 12a: hardware control unit, 12b: interface unit, 12
c: communication protocol unit, 13: storage unit, 14: sensor,
15: timer, 16: antenna

Claims (5)

[Claims] 1. A telephone, comprising: a directional microphone for inputting a voice of a user of the telephone; a non-directional microphone for collecting sounds around the telephone; and a ring tone generator for generating a ring tone And a control processing unit that switches a ring volume of the ring tone generating unit according to an ambient volume obtained through the omnidirectional microphone. 2. A telephone, comprising: a directional microphone for inputting a voice of a user of the telephone; an omnidirectional microphone for collecting sounds around the telephone; and outputting a voice of a call partner. And a control processing unit that switches a received sound volume of the speaker according to an ambient sound volume obtained through the omnidirectional microphone. 3. A telephone, comprising: a directional microphone for inputting a voice of a user of the telephone; an omnidirectional microphone for collecting sound around the telephone; and outputting a voice of a call partner. A speaker, a ringtone generating unit that emits a ringtone, a light detection sensor having a light receiving surface facing the outside of the telephone, and a sound collection result of the omnidirectional microphone and a detection result of the light detection sensor. A telephone comprising: a control processing unit that switches a ring volume of the ring tone generation unit and / or a reception volume of the speaker. 4. The telephone according to claim 3, wherein the control processing unit sets the detection result of the light detection sensor to be smaller than a predetermined reference value when the ring tone generating unit emits a ring tone. A telephone set characterized in that when it becomes louder, the ringer volume is reduced. 5. The telephone according to claim 1, further comprising a vibrator for notifying an incoming call by vibrating itself, wherein said control processing unit operates said vibrator when an incoming call is received, and thereafter, said ring tone A telephone, wherein a ringer is generated by a generator.