JP3332853B2 - Wireless communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication device such as a portable telephone, and more particularly to a wireless communication device in which a ringer sound for notifying an incoming call and a receiving sound during a call are generated by a common electric-voice converter. It concerns the device.

[0002]

2. Description of the Related Art In a conventional portable telephone, a ringer that generates a ringer sound, that is, a vibration having a frequency in an audible band, and a vibration that can be sensed, for example, a vibration having a frequency of several hundred Hz or less, are provided to notify an incoming call. And a vibration generator for generating the vibration are built-in, and it is possible to use both according to the situation. A portable telephone has been proposed which emits a ringer sound for notifying an incoming call and a received sound during a call from a common electric-voice converter (speaker) (Japanese Patent Laid-Open No. 5-199287).

For example, a portable telephone shown in FIG.
An operation button (1) such as a numeric keypad is provided on the housing (11) having the (1) projected.
4), a display (15), a receiver (12) containing an electric-to-speech converter (16), a transmitter (13) containing a microphone (not shown), a vibration generator (17), etc. And when a call arrives,
A ringer sound is generated by the electric-to-speech converter (16) or the vibration generator (17) is operated to notify an incoming call.

[0004]

However, as described above, in a portable telephone which emits a ringer sound and a reception sound from a common electric-voice converter, as shown in FIG.
Since the voice converter (16) is provided at the upper end position corresponding to the ear of the housing (11), when the housing (11) is put on the ear at the time of an incoming call, the electric-voice converter (16) is used. The ringer sound of high sound pressure generated from the above) enters the ear while maintaining the high sound pressure, which has a problem of adversely affecting the eardrum and the auditory nerve.

Accordingly, an object of the present invention is to provide a wireless communication device that emits a ringer sound and a reception sound from a common electric-voice converter without the risk that the ringer sound adversely affects the eardrum or auditory nerve at the time of an incoming call. A wireless communication device is provided.

[0006]

A first wireless communication apparatus according to the present invention comprises: an electric-to-speech converter (16) for generating a ringer sound for notifying an incoming call and a receiving sound during a call; detecting the incoming detection circuit (53), a calling signal generation circuit for creating a ringing signal for the ringer sound generated when an incoming (61), receiving
A voice processing circuit for generating a voice signal for generating a speech sound (6)
A gain adjustment circuit (62) for changing the level of a call signal to be supplied from the call signal generation circuit (61) to the electric-to-speech converter (16); and a voice signal obtained from the voice processing circuit (6).
Signal and the ringing signal obtained from the ringing signal creation circuit (61).
Switch (65) that switches to supply to the electric-voice converter (16)
Control the gain of the gain adjustment circuit (62) and
And a control circuit (5) for controlling the switching of the switch (65) . The control circuit (5) switches the switch (65) to the ringing signal generation circuit (61) during the period from the time of the incoming call to the time of off-hook. Exchange
In this state, the gain adjustment circuit (62) is set to the minimum gain and then to the normal gain.

For example, the control circuit (5) changes the gain of the gain adjusting circuit (62) stepwise or continuously from the minimum value to the normal value during a period from the time of the incoming call to the time of off-hook.

Therefore, even if the apparatus is in contact with the ear at the time of the incoming call, the gain of the gain adjustment circuit (62) is set to the minimum value at that point, and therefore the apparatus is supplied to the electric-to-speech converter (16). The call signal level is low,
The sound pressure of the ringer sound generated from (16) is low.
The user can sufficiently hear this low sound pressure ringer sound from the device placed on the ear, and thereby can recognize the incoming call. On the other hand,
When the apparatus is not in contact with the ear, the sound pressure of the ringer sound is low at that time as described above, but thereafter, the gain of the gain adjustment circuit (62) is increased to a normal value. The level of the call signal supplied to (16) increases,
A ringer sound is generated from the electric-voice converter (16) at a sufficient sound pressure. The user can sufficiently hear the ringer sound having a high sound pressure from the device away from the ear, and thereby can recognize the incoming call.

A second wireless communication apparatus according to the present invention has an electric-to-speech converter having a fixed resonance frequency and generating a ringer sound for notifying an incoming call and a receiving sound during a call (16).
A ringing signal generating circuit (7) for generating a ringer sound when a call is received; and a voice signal for generating a ringing tone.
Signal processing circuit (6) for generating a signal and a call signal generation circuit
Electricity (7) - the oscillation frequency setting unit for changing the frequency of the ringing signal to be supplied to the audio transducer (16) and (71), sound
A voice signal obtained from the voice processing circuit (6) and a ringing signal generation time
Switching between the call signal obtained from the road (7) and electric-voice
The switch (74) to be supplied to the converter (16) and the set frequency of the oscillation frequency setting section (71) are controlled , and the switch (74) is
And a control circuit (50) for controlling the switching.
0) is the switch from the time of the incoming call to off-hook.
In the state where (74) is switched to the call signal generation circuit (7), a predetermined frequency deviated from the resonance frequency of the electric-to-speech converter (16) is set in the oscillation frequency setting section (71). The frequency is set.

For example, the control circuit (50) changes the set frequency of the oscillation frequency setting section (71) stepwise or continuously from the predetermined frequency to the resonance frequency during the period from the time of the incoming call to the time of off-hook. Let it.

Therefore, even if the device is in contact with the ear at the time of the incoming call, at that time the oscillation frequency setting unit (71) is set to the predetermined frequency deviated from the resonance frequency, so that the electric-voice converter (71) The frequency of the ringing signal supplied to 16) deviates from the resonance frequency, and the sound pressure of the ringer sound generated from the electric-voice converter (16) becomes low. The user can sufficiently hear the ringer sound having the low sound pressure, and thereby can recognize the incoming call. On the other hand, when the device is not in contact with the ear at the time of the incoming call, the sound pressure of the ringer sound is low at that time as described above, but thereafter, the oscillation frequency setting unit (71) is set to the resonance frequency. The frequency of the call signal supplied to the electric-to-speech converter (16) coincides with the resonance frequency, and a ringer sound is generated from the electric-to-speech converter (16) at a sufficient sound pressure. The user can sufficiently hear the ringer sound having the high sound pressure, and thereby can recognize the incoming call.

[0012]

According to the radio communication apparatus of the present invention, the notification of the incoming call is started by the ringer sound having a low sound pressure or the sensible vibration, so that it is assumed that the apparatus is in contact with the ear at the time of the incoming call. Also, there is no risk that the eardrum or auditory nerve will be adversely affected.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
Next, a specific description will be given with reference to the drawings.First embodiment  The mobile phone of this embodiment shown in FIG.
Electric-to-speech converter that emits sound and received voice during a call (16)
And a vibration generator (17) that emits sensible vibration when receiving a call
Ringer with ringer sound
-Notification mode and vibration report to notify incoming call by vibration
The intelligent mode can be selected by operating the operation button (14).
It is possible, according to the selection operation, a call setting circuit (55)
Sets the mode for the control circuit (5).

Radio waves transmitted from the base station are transmitted through an antenna.
The signal is always received at a fixed period by (1), and the received signal is subjected to frequency conversion and demodulation by a radio circuit (51), and then supplied to a signal processing circuit (52), where the digital audio signal is received. And the control signal is extracted. The operation of the signal processing circuit (52) is controlled by the control circuit (5). The control signal obtained from the signal processing circuit (52) is supplied to the incoming call detection circuit (53) to detect the presence or absence of a call to the own station, and an incoming call notification operation described later is performed according to the detection result. On the other hand, the audio signal obtained from the signal processing circuit (52) passes through the audio processing circuit (6), the amplifier circuit (64), and the switch (65), and is output from the electric-audio converter (16) as audio. Become.

A vibration generator (17) is connected to the control circuit (5) via a driving circuit (54). When the vibration notification mode is set at the time of an incoming call, vibration is generated from the driving circuit (54). Container (1
A drive signal is supplied to 7), and an incoming call is notified by the operation of the vibration generator (17). The ringing signal creation circuit (61) is for creating a ringing signal in order to perform notification by sound, and the ringing signal passes through a gain adjustment circuit (62), an amplification circuit (63) and a switch (65), Voice from electric-voice converter (16)
(Ringer sound) is output. The operation of the gain adjustment circuit (62) and the switching of the switch (65) are controlled by the control circuit (5).

FIG. 2 shows the operation of the control circuit (5). First, in step S1, it is determined whether there is an incoming call,
If there is an incoming call, the process proceeds to step S2, and it is determined whether or not notification by a ringing tone (ringer notification mode) is selected. If the determination is yes here, the process proceeds to step S3, where the gain adjustment circuit (62) is set to the minimum gain. Then, in step S4, the switch (65) is switched, and the electric-voice converter ( 16) is connected to the calling signal side.
As a result, a ringer sound having a low sound pressure is emitted from the electric-voice converter (16). Then, in step S5, it is determined whether or not a predetermined time has elapsed since the switching of the switch (65). If the determination is yes, the process proceeds to step S6.

In step S6, the gain adjusting circuit (62) is set to a normal gain. As a result, a ringer sound is emitted from the electric-voice converter (16) with a sufficient sound pressure. Thereafter, in step S7, it is determined whether or not the vehicle is in an off-hook state.
In step 1, the switch (65) is switched to connect the electric-voice converter (16) to the voice processing circuit. This enables a call with the caller. And step S
At 12, the call processing is performed, and then the procedure is terminated.

On the other hand, when it is determined NO in step S2, the process proceeds to step S8, and the vibration generator (17) is driven by the drive circuit (54). As a result, the vibration generator (17) vibrates, and an incoming call is notified. Thereafter, in step S9, it is determined whether or not the vehicle is in the off-hook state. If the determination is yes, the process proceeds to step S10.
Then, after stopping the vibration generator (17) in step S10, the process proceeds to step S11.

According to the above-described series of procedures, when there is an incoming call, the ringing tone emitted from the electric-to-speech converter (16) is subjected to the stepwise expanding process of the incoming call tone in steps S3 to S5. Since the sound pressure of the ringer is increased from the lowest level to the normal level, even if the mobile phone is in contact with the ear at the time of the incoming call, the sound pressure of the ringer sound is low at that point, which may adversely affect the eardrum and auditory nerve No call can be notified. Then, if the mobile phone is separated from the ear when the incoming call is recognized, the subsequent increase in the sound pressure of the ringer sound does not adversely affect the eardrum or the auditory nerve.

Second Embodiment A portable telephone according to the second embodiment shown in FIG. 3 includes a vibration generator (17) and an electric-voice converter (16) in the same manner as the first embodiment, and uses a ringer sound. A ringer notification mode for notifying an incoming call and a vibration notification mode for notifying an incoming call by vibration can be selected by operating the operation button (14), and a call setting circuit ( 55) sets the mode for the control circuit (50).

The audio signal obtained from the signal processing circuit (52) is supplied to an audio processing circuit (6), an amplifying circuit (64) and a switch (74).
After that, the sound is output as sound from the electric-speech converter (16). The call signal generation circuit (7) is for generating a call signal to perform sound notification,
The frequency of the calling signal can be variably set by the built-in oscillation frequency setting section (71). Call signal creation circuit
The ringing signal from (7) is supplied to the amplifying circuit (73) and the switch (74).
, And is output as voice (ringer sound) from the electric-voice converter (16). The operation of the oscillating frequency setting unit (71) of the calling signal generation circuit (7) and the switching of the switch (74) are controlled by the control circuit (50). The oscillation frequency setting section
(71) can be configured as an independent circuit different from the call signal generation circuit (7).

FIG. 4 shows the operation of the control circuit (50). First, in step S21, it is determined whether or not there is an incoming call. If there is an incoming call, the process proceeds to step S22, and it is determined whether or not notification by ringing sound (ringer notification mode) is selected. If you are judged yes here,
Proceeding to step S23, a predetermined frequency fa shifted to the positive side or the negative side from the resonance frequency of the electric-voice converter (16) is set in the oscillation frequency setting unit (71), and then in step S24. , Switch (74) to connect the electric-voice converter (16) to the calling signal side. As a result, a ringer sound is emitted from the electric-to-speech converter (16) at a low sound pressure. Then, in a step S25, it is determined whether or not a predetermined time has elapsed since the switching of the switch (74). When the determination is affirmative, the process proceeds to a step S26.

In step S26, the oscillation frequency setting unit (7
Set the resonance frequency fc in 1). As a result, the electric-voice converter (16) resonates, and a ringer sound is emitted at a high sound pressure. Thereafter, in step S27, it is determined whether or not it is in an off-hook state. If the determination is yes, the process proceeds to step S31, where the switch (74) is switched, and the electric-speech converter (16) is moved to the sound processing circuit side. Connecting. This enables a call with the caller. Then, in step S32, after performing the call processing, the procedure is terminated.

On the other hand, if NO is determined in step S22, the process proceeds to step S28, where the vibration generator (17) is driven by the drive circuit (54), and then, in step S29, it is in an off-hook state. It is determined whether or not this is the case, and when it is determined as YES, the process proceeds to step S30. And
After stopping the vibration generator (17) in step S30, the process proceeds to step S31.

In the above series of procedures, when a call arrives,
The frequency set in the oscillation frequency setting unit (71) is set to a predetermined frequency fa greatly deviated from the resonance frequency fc of the electric-to-speech converter (16) as shown in FIG. 5 (point a). Since the resonance frequency fc is set (point c) after the frequency fb (point b), the magnitude of the vibration (sound pressure level) generated from the electric-voice converter (16) gradually increases as shown in FIG. It increases and reaches a maximum when the resonance frequency is set (point c).

According to the above series of procedures, when an incoming call is received, a stepwise expansion process of the incoming call ringing sound (ringer sound) is executed in steps S23 to S25, and sound is emitted from the electric-voice converter (16). Since the sound pressure of the ringer sound is increased from the lowest level to the normal level (maximum value), the sound pressure of the ringer sound is low at that point, even if the mobile phone is in contact with the ear at the time of the incoming call. Incoming calls can be notified without adversely affecting the auditory nerve. Then, if the mobile phone is separated from the ear when the incoming call is recognized, the subsequent increase in the sound pressure of the ringer sound does not adversely affect the eardrum or the auditory nerve.

[0027]Third embodiment  The mobile phone of the present embodiment shown in FIG. 6 is similar to the mobile phone of the first embodiment.
In addition, a vibration generator (17) and an electric-to-speech converter (16) are provided.
Ringer notification to notify the incoming call by ringer sound
Mode and vibration alert mode that alerts you to incoming calls by vibration.
Can be selected by operating the operation button (14).
The call setting circuit (55) is controlled according to the selection operation.
The mode is set for the circuit (56).

The audio signal obtained from the signal processing circuit (52) is supplied to an audio processing circuit (6), an amplifying circuit (64) and a switch (65).
After that, the sound is output as sound from the electric-speech converter (16). Further, the call signal creation circuit (61) is for creating a call signal to perform sound notification,
The calling signal from the calling signal creation circuit (61) passes through a gain adjustment circuit (62), an amplification circuit (63) and a switch (65), and
The sound is output from the sound converter (16) as sound (ringer sound). The operation of the call signal creation circuit (61) and the switching operation of the switch (65) are controlled by the control circuit (56).

FIG. 7 shows the operation of the control circuit (56). First, in step S41, it is determined whether or not there is an incoming call. If there is an incoming call, the process proceeds to step S42, and it is determined whether or not notification by a ring tone (ringer notification mode) is selected. If you are judged yes here,
In step S43, the vibration generator (17) is driven by the drive circuit (54). As a result, the vibration generator (17) vibrates, and an incoming call is notified. Then, step S44
It is determined whether or not a predetermined time has elapsed after the driving of the vibration generator (17).
The process proceeds to 45, where the vibration generator (17) is stopped.

Thereafter, in step S46, the switch (6
5) is switched to connect the electric-voice converter (16) to the calling signal side. As a result, a ringer sound is emitted from the electric-to-speech converter (16) at a sufficient sound pressure. Then, it is determined whether or not the vehicle is in an off-hook state in step S47. If the determination is yes, in step S51,
The electric-to-speech converter (16) is connected to the speech processing circuit side, and after performing a call process in step S52, the procedure is terminated.

On the other hand, if NO is determined in step S42, the process proceeds to step S48, where the vibration generator (17) is driven by the drive circuit (54), and then, in step S49, it is in an off-hook state. It is determined whether or not this is the case, and when it is determined as YES, the process proceeds to step S50. And
After stopping the vibration generator (17) in step S50, the process proceeds to step S51.

In the above series of procedures, when there is an incoming call, steps S43 to S45 are executed, the vibration generator (17) is driven first, and after the incoming call is notified,
Since the voice converter (16) is driven and the notification of the incoming call is continued, even if the mobile phone is put on the ear when the incoming call is received, the incoming call is notified by vibration for a certain period of time. So the eardrum and auditory nerve are not adversely affected. If the mobile phone is separated from the ear when the incoming call is recognized, the subsequent generation of the ringer sound due to the high sound pressure does not adversely affect the eardrum or the auditory nerve.

In the first to third embodiments, the vibration generator (17) and the electric-voice converter (16) are formed separately. It is also possible to configure. For example, the notification unit (2) shown in FIG.
Is a first vibrating body driven at an audible frequency by a first drive signal to generate a sound wave, and several hundreds by a second drive signal.
It is composed of a second vibrating body that is driven at a low frequency of less than Hz to generate vibration, and a signal generation circuit that generates a first drive signal and a second drive signal. The first and second vibrators are housed in a common casing, and the first vibrator is configured by attaching a coil to the casing via a first diaphragm, while the second vibrator is mounted on the casing. A magnet body is attached via two diaphragms, and the magnet body includes a first body.
A magnetic gap for accommodating the coil of the vibrator is formed.

More specifically, as shown in FIG. 9, a first vibrating body (4) for mainly generating a sound wave is provided in a cylindrical casing (21).
And a second vibrating body (3) that is to generate mainly mechanical vibration, wherein the casing (21) is a cylindrical main body.
A ring-shaped front cover member (24) having a sound emission opening (25) is attached to the front opening of (22), and a ring-shaped rear cover member (23) is provided at the back opening of the main body (22). Attach
The whole is compactly constructed.

The first vibrator (4) is a circular first vibrator having a peripheral portion sandwiched between the casing body (22) and the front cover member (24).
It is composed of a diaphragm (41) and a coil (42) fixed to the back of the first diaphragm (41). The first vibrator (4) is
It has an audible resonance frequency exceeding 0 Hz. On the other hand, the second vibrating body (3) includes a ring-shaped second vibrating plate (34) having an outer peripheral portion sandwiched between the casing body (22) and the rear cover member (23), and a second vibrating plate (34). ), A permanent magnet (31) magnetized in the axial direction (vertical direction) and fixed to the front surface of the outer yoke (32), and a permanent magnet (31). An inner yoke (33) fixed to the front
The coil (42) of the first vibrating body (4) is vertically movably accommodated in a ring-shaped magnetic gap formed between the facing surface of the inner yoke (2) and the inner yoke (33). The second vibrator (3) is given by
It has a resonance frequency lower than 00 Hz.

Therefore, when an incoming call is received in a state where the ringer sound notification mode is set, the frequency of the coil (42) of the notification unit (2) that matches the resonance frequency of the first vibrator (4) is applied. Is supplied, the first vibrating body (4) resonates, and an incoming call is notified by voice (ringer sound). On the other hand, if there is an incoming call while the vibration notification mode is set, the notification unit (2)
By supplying a ringing signal having a frequency corresponding to the resonance frequency of the second vibrating body (3) to the coil (42),
The vibrating body (3) resonates, and an incoming call is notified by vibrating vibration.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation of a control circuit in the first embodiment.

FIG. 3 is a block diagram illustrating a configuration of a second embodiment.

FIG. 4 is a flowchart illustrating an operation of a control circuit according to a second embodiment.

FIG. 5 is a graph showing frequency-sound pressure level characteristics of an electric-sound converter according to a second embodiment.

FIG. 6 is a block diagram illustrating a configuration of a third embodiment.

FIG. 7 is a flowchart showing the operation of the control circuit in the third embodiment.

FIG. 8 is a perspective view illustrating an appearance of a mobile phone.

FIG. 9 is a cross-sectional view of a notification unit obtained by integrating an electric-voice converter and a vibration generator.

[Explanation of symbols]

 (11) Housing (12) Receiver (13) Transmitter (16) Electric-to-speech converter (17) Vibration generator (2) Notification unit (5) Control circuit (53) Incoming detection circuit (6) Voice Processing circuit (61) Call signal creation circuit (62) Gain adjustment circuit (65) Switch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 1/00 H04B 1/16 H04M 1/02 H04Q 7/38

Claims (4)

(57) [Claims] 1. Ringer sound and call to notify incoming call
The incoming call soundGenerated from a common electrical-to-sound converter (16)
ToAn incoming call detection circuit (53) for detecting an incoming call in a wireless communication apparatus, and a call for generating a ringing signal for generating a ringer sound upon receiving an incoming call.
Output signal generation circuit (61),Audio processing circuit that generates audio signals for receiving sound
(6)  Supplied from the call signal creation circuit (61) to the electric-voice converter (16)
Gain adjustment to change the level of the ringing signal to be
A circuit (62),Creation of voice signal and call signal obtained from voice processing circuit (6)
Switch between the call signal obtained from the circuit (61) and the electric-sound
A switch (65) for supplying to a voice converter (16),  Controlling the gain of the gain adjustment circuit (62)Along with the switch
Controlling switch (65)Control circuit (5)
The control circuit (5) operates during the period from the time of the incoming
With the switch (65) switched to the calling signal creation circuit (61)
StateAfter setting the gain adjustment circuit (62) to the minimum gain,
A wireless communication device characterized by setting a normal gain. 2. The control circuit (5) changes the gain of the gain adjustment circuit (62) stepwise or continuously from the minimum value to a normal value during a period from an incoming call to off-hook. Item 2. The wireless communication device according to item 1. 3. An incoming call is notified with a certain resonance frequency.
Between the ringer sound and the incoming call sound during a call.Common electricity
-Arising from the sound converter (16)An incoming call detection circuit (53) for detecting an incoming call in a wireless communication apparatus, and a call for generating a ringing signal for generating a ringer sound upon receiving an incoming call.
An output signal generation circuit (7);Audio processing circuit that generates audio signals for receiving sound
(6)  Supplied from the call signal generation circuit (7) to the electric-voice converter (16)
Oscillation frequency for changing the frequency of the ringing signal to be
Setting section (71),Creation of voice signal and call signal obtained from voice processing circuit (6)
Obtained from circuit (7) Switch between call signal and electric-sound
A switch (74) for supplying to the voice converter (16),  Controls the set frequency of the oscillation frequency setting section (71)Along with
Control switching of switch (74)With control circuit (50)
The control circuit (50) controls the period from the time of the incoming call to the time of off-hook.
AtSwitch the switch (74) to the call signal creation circuit (7)
In the stateOscillation frequency setting section (71)
The specified frequency deviated from the resonance frequency of the unit (16) was set.
And a wireless communication device for setting a resonance frequency.
Place. 4. The control circuit (50) changes the set frequency of the oscillation frequency setting unit (71) stepwise or continuously from the predetermined frequency to the resonance frequency during a period from the time of the incoming call to the time of off-hook. The wireless communication device according to claim 3, wherein: