JPH10308976A - Radio telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio telephone system where the arrival of an incoming call to a radio telephone set being carried together is recognized even in the midst of using an audio reproducing device such as a portable audio equipment is in use. SOLUTION: A portable CD player 1 that reproduces an audio signal and a radio telephone set 3 to which a headphone 2 having a microphone 2c is connected are connected by an adaptor 40. When an incoming call reaches the radio telephone set 3 in the midst of listening to a reproduced sound from the portable CD player 1 by a couple of speakers 2b of the headphone 2, a 1st control section 56 detects the incoming call and informs it to a 2nd control section 59. The 2nd control section 59 receiving the incoming call notice gives an incoming call signal to a pause signal generating circuit 60 and a dial tone supply circuit section 61. The pause signal generating circuit section 60 generates a pause signal to set the portable CD player 1 into the pause state and mutes the reproduction sound, and on the other hand, the call tone supply circuit section 61 generates a prescribed voice signal to supply it to a couple of the speakers 2b of the headphone 2 so as to inform the arrival of the incoming call to the radio telephone set 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio telephone device, and more particularly, to a radio telephone device suitable for use in combination with a radio telephone such as a portable telephone and a portable audio device.

[0002]

2. Description of the Related Art In recent years, the use of wireless telephones such as portable telephones has been remarkably widespread, and the number of people who always carry wireless telephones has been increasing. On the other hand, portable audio devices that have been used in the past are being developed so that various media can be used, and are expected to become more widespread than ever.

[0003]

However, when a portable audio device is used and a wireless telephone is carried, there are the following problems. That is, portable audio devices are often used with headphones. However, when a user is listening to music or the like using a portable audio device, external sounds may be interrupted by sounds output from headphones and may not reach the user's ears. Therefore, even if a wireless telephone receives a call and a calling sound is heard, the calling sound is interrupted by the sound output from the headphones when the portable audio device being carried together is reproduced, and the user is not heard. It is possible that the user does not hear and does not notice the incoming wireless phone call.

[0004] Also, the user is concerned that the sound output from the headphones cannot hear the calling sound of the wireless telephone, and does not use the portable audio device when carrying the wireless telephone, even if the user has a portable audio device. This may lead to a decrease in the frequency of use of the portable audio device.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to enable a user to hear the calling sound of a radio telephone carried together with a portable audio device while using the portable audio device. It is an object of the present invention to provide a wireless telephone device that can increase the frequency of use of a device.

[0006]

In order to achieve the above object, a wireless telephone device according to the present invention communicates by radio waves, transmits a voice signal from its own station to a partner station, and transmits a voice signal from the partner station. A first device unit having a communication function of receiving a signal, a second device unit having a reproduction function of reproducing an audio signal, and a second device unit having a function of reproducing the audio signal. And a control unit for controlling the operation of the second device unit.

[0007] In the wireless telephone device according to the present invention configured as described above, a communication function of performing communication by radio waves, transmitting an audio signal from the own station to the opposite station, and receiving an audio signal from the opposite station. A second device unit having a playback function of playing back an audio signal, and an operation of the second device unit depending on whether the first device unit has received a call signal. And a control unit for controlling whether the first device unit has received a call signal even while the user is using the second device unit. it can.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. First, the first of the present invention
A wireless telephone and a portable CD player according to the embodiment will be described.

In the first embodiment, as shown in FIG. 1, a portable CD player 1 used as an audio reproducing device and a headphone 2 including a remote controller 2a, a pair of speakers 2b and a microphone 2c are provided. It is detachably connected via a wireless telephone 3 capable of transmitting and receiving signals.
Note that the portable CD player 1 can also be used by directly connecting to the headphones 2 without using the wireless telephone 3.
The wireless telephone 3 can be used alone.

First, a portable CD player 1 used as an audio reproducing device will be described. FIG. 5 is a block diagram showing the portable CD player 1.

As shown in FIG. 5, the disk 4 is rotated by the spindle motor 5 and the optical head 6 is rotated.
Reads the information. The optical head 6 is a disc 4
Is irradiated with laser light, and information (audio signal) recorded, for example, in a pit form on the disk 4 is read from the reflected light.

In order to read data from the disk 4 in this manner, the optical head 6 includes a laser diode 6c as laser output means, a polarizing beam splitter,
An optical system 6d including a four-wavelength plate, an objective lens 6c serving as a laser output terminal, a detector 6b for detecting reflected light, and the like are mounted. Objective lens 6c
Is held by a biaxial mechanism 7 so as to be displaceable in a disk radial direction (tracking direction) and in a direction approaching / separating from the disk (focus direction).
The whole is made movable in the disk radial direction by a thread mechanism 8.

The information detected from the disk 4 by the optical head 6 by the reproducing operation is supplied to the RF amplifier 9. The signal amplified by the RF amplifier 9 is transmitted to an RF equalizer 1 in a digital signal processor (hereinafter referred to as DSP) 10.
1 is supplied. The RF equalizing unit 11 performs an arithmetic operation on the supplied information to execute a reproduction RF signal (EFM signal), a tracking error signal TE, and a focus error signal FE.
And so on.

The reproduced RF signal is supplied to an asymmetry correction circuit 1
2, a signal binarized via the RF-PLL circuit 13,
That is, as an EFM signal (8-14 modulated signal),
The signal is supplied to the demodulation unit 14. The RF-PLL circuit 13 generates a reproduction clock synchronized with the EFM signal by a so-called PLL operation, and supplies the reproduction clock to the EFM demodulation unit 14 as a clock for the decoding process. The EFM signal is subjected to EFM demodulation by the EFM demodulation unit 14, and
A sub-code component, which will be described later, is extracted, and the sub-code processing unit 15 decodes the sub-code data. For example, subcode Q data is extracted.

The subcode data is transmitted via a CPU interface unit (hereinafter referred to as a CPU-IF) 16.
This is supplied to the CPU 17 functioning as a system controller of the CD player.

The data subjected to the EFM demodulation by the EFM demodulation unit 14 is written into the ECC-RAM 18, and the error correction process as the CIRC decoding is executed through the read / write process in the ECC-RAM 18 by the error correction unit 19. . So-called C1 correction and C2 correction are performed.

The data subjected to the CIRC decoding is subjected to a deinterleave process by a deinterleave circuit 20, thereby performing 16-bit quantization,
The signal is demodulated to a so-called digital audio data format such as 4.1 KHz sampling. The digital audio data DT is temporarily stored in the buffer memory 22 under the control of the memory controller 21. And
Data (digital audio data DT) read from the buffer memory 22 at a predetermined timing is converted into an analog audio signal S _A by the D / A converter 23.
For example, L and R are supplied from the terminal 24a of the headphone jack 24 to the headphones 2 via the external adapter unit 3 and
It is reproduced and output as an audio signal.

The buffer memory 22 is composed of a D-RAM, and has a capacity for storing, for example, digital audio DT for about 3 seconds as reproduced sound. Of course, a larger capacity may be used. Also, it is not always necessary to use a D-RAM.

By performing the reproducing operation using the buffer memory 22 in this manner, an anti-vibration function (ESP function) can be obtained. That is, the rotation speed of the disk 4 by the spindle motor 5 is adjusted, and the optical head 6
The processing at P10 is performed at a high rate, and the decoded digital audio data DT is written into the buffer memory 22. On the other hand, reading from the buffer memory 22 is performed at a normal rate under the control of the memory controller 21 and is reproduced and output, so that music and the like are reproduced and output at a normal speed and pitch.

Here, due to the difference between the write bit rate and the read bit rate of the buffer memory 22, a certain amount of data is always stored in the buffer memory 22. Therefore, even if a track jump or the like occurs due to disturbance or the like, and data reading from the disk 4 by the optical head 6 is temporarily stopped, the buffer memory 22
, Can be continued, so that the reproduced sound is not interrupted. In this case, the optical head 6 may restart reading from an appropriate position while the reproduction by the stored data is continued.

By the way, due to the difference between the write bit rate and the read bit rate of the buffer memory 22, the amount of data stored in the buffer memory 22 may reach a full capacity at some point. In this embodiment, normally, the transfer rate is adjusted so that the accumulated amount of the buffer memory 22 does not reach the full capacity, so that the interruption of the writing (that is, the writing standby by one track jump) does not have to be executed. Things. The track jump is required only when the continuity of the read data is interrupted by the frame check or when an error correction impossible state occurs, and the number of track jumps executed during reproduction is reduced as much as possible. .

As described above, the subcode information recorded on the disk 4,
The OC and address data are extracted and supplied to the CPU 17, whereby the CPU 17 can perform a frame check (a check of data continuity).

If the error cannot be corrected even by the C1 and C2 correction processing by the error correction section 19, a C2PO signal indicating this is output.
7 is supplied. Thereby, the CPU 17 can monitor the error occurrence status. Also, from DSP10 to CPU
A score signal is also supplied to 17, which is a signal for confirming the synchronization state of the write data to the buffer memory 22.

The tracking error signal TE and the focus error signal FE obtained by the RF equalizer 11 are supplied to an optical system servo signal processor 25. The optical system servo signal processing unit 25 generates various servo drive signals based on the supplied tracking error signal TE and focus error signal FE. At the same time, the optical system servo signal processing unit 25 sends a track jump command and access command supplied from the CPU 17 via the CPU-IF 16, a remote control signal RS and a pause signal PS supplied from the remote controller 2a and the adapter unit 3, and the like. Generates various servo drive signals. It should be noted that the CPU-
The display signal supplied via the IF 16 is supplied via a terminal to a display unit (not shown) provided in the remote controller 2b.

The optical system servo signal processing section 25 generates a servo signal, for example, as a PWM modulation signal in accordance with the focus error signal FE, and supplies the servo signal to a servo driver 26. The servo driver 26 generates a focus drive signal based on the supplied PWM modulation signal and applies it to the focus coil of the biaxial mechanism 7. That is, the objective lens 6a is driven in the focus direction based on the focus drive signal. The optical system servo signal processing unit 25 turns off the focus servo loop at the time of focus search, and outputs a PWM modulation signal corresponding to the voltage value to be generated to the servo driver based on the search voltage generation control from the CPU 17. 26. The servo driver 26 applies a focus search voltage as a focus drive signal to the focus coil of the biaxial mechanism 7 based on the supplied PWM modulation signal.

The optical system servo signal processing section 25 generates a servo signal as a PWM modulation signal in accordance with the tracking error signal TE and supplies the servo signal to the servo driver 26. The servo driver 26 generates a tracking drive signal based on the supplied PWM modulation signal, and applies it to the tracking coil of the biaxial mechanism 7. That is, the objective lens 6a is driven in the tracking direction based on the tracking drive signal. Further, the optical system servo signal processing unit 25 calculates the P value from the low frequency component of the tracking error signal TE.
A thread servo signal as a WM modulation signal is generated and supplied to the servo driver 26. The servo driver 26 generates a thread drive signal based on the supplied PWM modulation signal, and drives the thread mechanism 8.

As described above, in the RF-PLL circuit 13,
A reproduction RF signal (EFM signal) is injected into a PLL circuit to reproduce a reproduction clock synchronized with the reproduction data, and the reproduced clock is used for various processing such as EFM decoding. Become. DSP1
In the spindle servo signal processing section 27 within 0, for example, the reproduced clock is compared with a reference clock generated from the master clock, and a spindle error signal SPE is obtained as a difference between the reproduced clock and the reference clock.

Normally, the spindle error signal SPE
A drive signal for driving the spindle motor 5 is generated on the basis of the
Adopts a wide capture system, that is, the system PLL is locked for the rotation speed of the spindle motor 5, and the signal processing in the DSP 10 is performed at the locked frequency.

For this reason, the spindle servo signal processing unit 2
The band of the spindle error signal SPE output from 7 is limited by a low-pass filter 28 and then input to a voltage-controlled oscillator (VCO) 29. That is, the spindle error signal SPE is used as the control voltage of the VCO 29.

Since the spindle error signal SPE changes according to the rotation speed of the spindle motor 5, the VCO 29
Performs an oscillating operation following the rotation speed of the spindle motor 5. The oscillation output of the VCO 29 is supplied to the clock generator 30, and the clock generator 30
The master clock CK of the DSP 10 system is generated according to the oscillation output of the DSP 29. The master clock CK serves as a processing reference in the DSP 10 including an operation reference of the RF-PLL circuit 13,
The entire signal processing system of P10 performs an operation following the rotation speed of the spindle motor 5.

By operating the DSP 10 with a clock corresponding to the rotation speed of the spindle motor 5, for example, even when the spindle motor 5 is accelerating (that is, regardless of whether or not the speed is a specific CLV speed), Decoding of read data can be performed. For example, when the disk 4 is chucked and the rotation of the spindle motor 5 is started, data can be read immediately.

The output of the VCO 29 is a 1 / M frequency divider 31.
, And is supplied to the phase comparator 32. on the other hand,
The system clock from the oscillator 33 which is the crystal clock generator 30 is supplied to the phase comparator 32 after being divided by the 1 / N divider 34. The frequency division ratio of the 1 / M frequency divider 31 and the 1 / N frequency divider 34, that is, the values of M and N are controlled by the auto sequencer 35.

The phase comparator 32 compares the phase of the output of the VCO 29 with the phase of the system clock from the oscillator 33 to generate a drive control signal for the spindle motor 5, and the drive based on the drive control signal from the LPF / spindle driver 36. Power will be applied to the spindle motor 5. Thereby, the spindle motor 5 is controlled to a predetermined CLV speed.

Here, by setting the frequency division ratio between the 1 / M frequency divider 31 and the 1 / N frequency divider 34 to a predetermined value, the rotation speed (CLV speed) of the spindle motor 5 can be increased to the standard speed,
It is possible to control to any speed such as 1.5 times speed and 2 times speed. That is, the CPU 17 can variably control the spindle rotation speed by controlling the auto sequencer 35 via the CPU-IF 16.

Next, the configuration of the wireless telephone 3 used in the first embodiment will be described. FIG. 4 shows a block diagram of the wireless telephone 3, the headphones 2 and the adapter 40.

As shown in FIG. 4, a wireless telephone 3 includes a wireless telephone section 41 for making a wireless communication, and an adapter jack 4 for connecting to an adapter plug 42 of an adapter 40.
3. A headphone jack 45 for connecting to a headphone plug 44 of the headphone 2.

The radio telephone section 41 includes an antenna 46 for transmitting and receiving signals, and a radio section 4 for performing frequency conversion and channel selection of transmission signals and reception signals.
7. A modulation / demodulation unit 48 for demodulating a received signal and modulating a transmission signal, and an audio processing unit 49 for mutually converting an audio signal and a reception signal and a transmission signal are provided. The output of the audio processing unit 49 is connected to the input of the reception audio amplifier 51 through one terminal of the changeover switch 50, and the output of the reception audio amplifier 51 is connected to the speaker 52. The input of the audio processing unit 49 is connected to the output of the transmission audio amplifier 54 via one terminal of the changeover switch 53, and the input of the transmission audio amplifier 54 is connected to the microphone 55.

The radio unit 47 and the modem unit 4
8. The audio processing unit 49 and the changeover switches 50 and 53 are controlled by a first control unit 56. The first control unit 56 includes a radio unit 47, a modem unit 48, an audio processing unit 49,
The changeover switches 50 and 53 are controlled, and control signals from these can be received. Further, the first control unit 56 supplies an incoming call signal to a ringer 57 that emits a calling sound for notifying a user of an incoming call of the wireless telephone 3, and operates when the user uses the wireless telephone 3. It can receive an operation signal from the operation panel 58 to be operated and control the operation panel 58. Further, the first control unit 56 supplies a call signal to the second control unit 59 when the wireless telephone 3 receives a call. Then, the headphone plug 44 is controlled by the first control unit 56.
Is connected to the headphone jack 45.

The second control section 59 has an input of a pause signal generation circuit section 60 for supplying a pause signal to the portable CD player 1, and a pair of speakers 2b of the headphones 2.
Is connected to an input of a calling sound supply unit 61 that supplies a voice signal for notifying an incoming call of the wireless telephone 3 to the first control unit 56, and at the same time, a pause signal is supplied. An incoming call signal is supplied to the generating circuit unit 60 and the calling sound supply unit 61.

Next, in the adapter jack 43,
Reference voltage terminal 43a, display signal terminal 43b, remote control signal terminal 43c, GND terminal 43d, headphone terminal 43
The headphone jack 45 also includes a reference voltage terminal 45a, a display signal terminal 45b, a remote control signal terminal 45c, a GND terminal 45d, and a headphone terminal 45e. Each terminal of the adapter jack 43 is connected to a corresponding terminal of the headphone jack 45 through a line. That is, the reference voltage terminals 43a and 45a
2. The display signal terminals 43b and 45b are connected to the display signal line 63, the remote control signal terminals 43c and 45c are connected to the remote control signal line 64, the GND terminals 43d and 45d are connected to the ground line 65, and the headphone terminals 43e and 45e are connected to each other through the signal line 66. I have. Note that the signal line 66 includes a microphone line 66a, an L line 66b, and an R line.
It comprises a line 66c and a GND line 66d. Then, by connecting a predetermined plug to the headphone jack 45 or the adapter jack 43, these can be connected to the predetermined terminals, respectively.

A line connecting the adapter jack 43 and the headphone jack 45 is connected to a predetermined portion of the wireless telephone section 41. That is, the other terminal of the changeover switch 50 in the wireless telephone unit 41 is
And the resistors 68a and 68b are connected to the L line 66b and the R line 66c of the signal line 66, respectively. On the other hand, the other terminal of the changeover switch 53 is connected to the microphone line 66 a of the signal line 66 via the transmission audio amplifier 69.

The output of the pause signal generation circuit section 60 is connected to a remote control signal line 64 so that a pause signal can be supplied to the portable CD player 1 through the remote control signal line. Also,
A remote control signal from the remote controller 2a can be supplied to the first control unit 56 through the remote control signal line 64. On the other hand, the output of the calling sound supply unit 61 is supplied to the L line 66b of the signal line 66 via the receiving voice amplifier 67 and the resistors 68a and 68b in sequence.
And an R line 66c, so that a sound signal of a calling sound can be supplied to a pair of speakers 2b of the headphones 2.

Next, the radio telephone 3 configured as described above is used.
Will be described. First, a case where the wireless telephone 3 is used alone will be described. When the wireless telephone 3 is used alone, that is, when the wireless telephone 3 is used in a state in which the headphone plug 44 is not connected to the headphone jack 45, as shown in FIG. Is not connected to the headphone jack 45, and switches the changeover switch 50 to the speaker 5.
The second side and the changeover switch 53 are connected to the microphone 55 side. When the wireless telephone 3 receives a signal through the antenna 46, the received signal is supplied to the wireless unit 47,
After the frequency conversion and the channel selection, the signal is supplied to the modulation / demodulation unit 48 and demodulated. The demodulated signal is supplied to the audio processing unit 49 and output as a received audio signal. The received voice signal is supplied to the received voice amplifier 51 through the received voice changeover switch 50, amplified, supplied to the speaker 47, and output as voice. On the other hand, the user's voice input to the microphone 55 is converted into a voice signal, amplified by the transmission voice amplifier 54, and supplied to the voice processing unit 49 via the changeover switch 53. Thereafter, this audio signal is supplied to the modulation / demodulation unit 48 and modulated. The modulated signal is supplied to a radio unit 47 and adjusted to a predetermined frequency and power.
6 is transmitted. As described above, the user makes a call using the wireless telephone 3.

Next, a description will be given of a case where the wireless telephone 3 is connected to the portable CD player 1 and the headphones 2 as shown in FIG. That is,
First, as shown in FIG. 4, the user inserts one of the adapter plugs 42 of the adapter 40 into the portable CD player 1.
Headphone jack 24, the other adapter plug 4
2 is connected to an adapter jack 43 of the wireless telephone, and a headphone plug 44 is connected to a headphone jack 45. Normally, when listening to music or the like, the reproduction signal output from the portable CD player 1 is supplied to a pair of speakers 2b of the headphone 2 through a signal line 66 in the wireless telephone 3, and is output as a reproduction sound. Has been output.

When there is an incoming call to the radio telephone 3 during such music reproduction, first, the first control unit 56 detects this incoming call and sends an incoming call signal to the second control unit 59. Supply. Next, the second control unit 59 supplies the incoming call signal, for example, to the pause signal generating circuit unit 60 and the calling sound supplying unit 61.
Notify that there is an incoming call. The pause signal generation circuit unit 60 receiving this notification generates a pause signal PS. The pause signal PS is supplied to the CPU-IF 16 of the portable CD player 1 through the remote control signal line 64. Thereby, the portable CD player 1
A pause state is set, and the playback sound is muted. On the other hand, the calling sound supply unit 61 that has received the notification of the incoming call from the second control unit 59 generates the set audio signal. This audio signal is supplied to the reception audio amplifier 67 and amplified, and the L line 66b and the R line 6
6c, the audio signal is supplied to the headphone 2 via the headphone jack 45 and the headphone plug 44 in that order, and is output as sound from the pair of speakers 2b. When the user who has heard this voice (calling sound) recognizes the incoming call of the wireless telephone 3, the user turns on / off the remote controller 2a.
Press the F button (not shown) or the button 58a provided on the operation panel 58 of the wireless telephone 3 to answer the telephone,
Start a call with the other party.

At this time, the voice signal of the other party received by the radio telephone 3 is subjected to the predetermined signal processing as described above, and then the changeover switch 50, the receiving voice amplifier 67, the L line 66b of the signal line 66 and The signal is supplied to the headphone 2 via the R line 66c, the headphone jack 45, and the headphone plug 44 in order, and is output from the pair of speakers 2b as the voice of the other party. On the other hand, the user speaks toward the microphone 2c. This sound is input to the microphone 2c and converted into a sound signal, and then the headphone plug 44 and the headphone jack 4
5, through the microphone line 66a of the signal line 66, the transmission audio amplifier 69, and the changeover switch 53,
9. The audio signal supplied to the audio processing unit 49 passes through the modulation / demodulation unit 48 and the radio unit 47 in order, and after being subjected to predetermined signal processing, is transmitted from the antenna 46. Thus, the voice of the user can be transmitted to the other party.

Thereafter, when the user terminates the call between the user and the other party by pressing the ON / OFF button on the remote controller 2a or the operation panel 58, or when the other party hangs up the telephone, for example, the first The control unit 56 detects the end of the call and notifies the second control unit 59 of the end of the call. Upon receiving this notification, the second control unit 59 ends the supply of the incoming call signal and the like to the pause signal generation circuit unit 60, and the pause signal generation circuit unit 60 ends the generation of the pause signal PS. Thereby, the portable type C
The setting of the pause state of the D player 1 is released, and the portable CD player 1 resumes sound reproduction. And
The user can listen to the reproduced sound from the portable CD player 1 again through the headphones 2.

As described above, according to the first embodiment, the wireless telephone 3 is interposed between the portable CD player 1 and the headphone 2 having the microphone 2c. Simultaneously with the call, the portable CD player 1 is set to the pause state by the second control unit 59, the reproduction sound is muted, and the calling sound is output from the pair of speakers 2b of the headphones 2. Accordingly, not only can the user recognize the incoming call of the wireless telephone 3 even while the user is using the portable CD player 1, but also the same as when the user is using the portable CD player 1. In this state, a call using the wireless telephone 3 can be performed without removing the headphones 2.

Next, a second embodiment of the present invention will be described. In the second embodiment, as shown in FIG. 2, the user connects the wireless telephone 3 and the portable CD player 1 via the adapter 40, and connects the headphone 2 and the wireless telephone 3 as slaves. The second wireless telephone 80 is connected. Here, the second wireless telephone 80 has the same structure as the wireless telephone 3, and can communicate directly with the wireless telephone 3.

In such a connection state, when the user is listening to music or the like, the audio signal output from the portable CD player 1 is supplied to the wireless telephone 3 through the adapter, and predetermined signal processing is performed. After that, it is transmitted to the second wireless telephone 80 by radio waves. The second wireless telephone 80 receives the audio signal, performs the same processing as in the case of the reception of the wireless telephone 3 in the first embodiment, and supplies this audio signal to the pair of speakers 2 b of the headphones 2. Then, the sound is output as a reproduction sound of the portable CD player 1. Thereby, the user can listen to the reproduced sound of the portable CD player 1.

When the radio telephone 3 receives a call while the user is listening to music or the like, the portable telephone is paused from the radio telephone 3 to the portable CD player 1 through the adapter in the same manner as in the first embodiment. A signal PS is provided. With the pause signal PS, the portable CD player 1 is set to a pause state, the reproduction sound is muted, and a voice signal of a calling sound is transmitted from the wireless telephone 3 to the second wireless telephone 80. The second wireless telephone 80 receives this voice signal and supplies it to the pair of speakers 2b to notify the user of the incoming call of the wireless telephone 3. The user who has recognized the incoming call of the wireless telephone 3 answers the telephone by pressing the ON / OFF button 80a provided in the second wireless telephone 80 or the like. As a result, the second wireless telephone 80 itself receives the transmission signal from the other party. The received audio signal is subjected to predetermined signal processing in the wireless telephone 80, then supplied to the headphones 2, and output from the pair of speakers 2b as the voice of the other party. The user can transmit his / her own voice to the other party by emitting a voice toward the second wireless telephone 80. Note that a transmission signal from the other party may be wirelessly transmitted to the second wireless telephone 80 via the wireless telephone 3 as a base unit, and instead of the second wireless telephone 80,
The user may be notified of the incoming call of the wireless telephone 3 by a certain means such as vibration.

As described above, according to the second embodiment, the same effects as those of the first embodiment can be obtained, and the portable CD player 1 and the wireless telephone 3 can be placed in a bag, for example. Not only can the portable CD player 1 hear the reproduced sound, but also can make a call by wireless telephone.

Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above embodiments, and various modifications based on the technical concept of the present invention are possible.

For example, in the first embodiment described above,
When an incoming call of the wireless telephone 3 is detected, a portable CD
The player 1 is set to a pause state by the first control unit 56. Instead of the pause state, when the incoming call of the wireless telephone 3 is detected, only the playback sound of the portable CD player 1 is output. May be muted. Further, for example, in the above-described first embodiment, when an incoming call of the wireless telephone 3 is detected, the reproduction of the portable CD player 1 is set to the pause state, and the reproduction sound is muted. Portable CD player 1
Instead of setting the reproduction to a pause state and muting the reproduction sound, the reproduction sound and the calling sound are mixed and output from the pair of speakers 2b while the reproduction of the portable CD player 1 is continued, thereby outputting the radio telephone. Incoming call 3 may be notified to the user.

In the first embodiment, for example, the portable CD player 1 is connected to the wireless telephone 3 via the adapter 40.
0, the reproduction signal from the portable CD player 1 is transmitted to the radio telephone 3 by radio, and the signals from the radio telephone 3 and the remote controller 2a are transmitted to the portable CD player 1 by radio, as shown in FIG. You may make it transmit. In this case, the portable CD player 1 is provided with an antenna 1a for receiving signals from the wireless telephone 3 and the remote controller 2a.

In the first and second embodiments, for example, the wireless telephone 3 and the portable CD player 1 are connected by an adapter.
The wireless telephone 3 and the portable CD player may be integrated and used.

[0057]

As described above, according to the present invention, the first device having the communication function capable of performing communication for transmitting and receiving between the own station and the other station by radio waves, and reproducing the audio signal. By having a second device unit having a playback function and a control unit for controlling the operation of the second device unit according to whether the first device unit has received a call signal , While using the second device section,
It becomes possible to recognize the reception in the first device section. For this reason, it is possible to eliminate the concern that the user cannot recognize the reception of the first device unit because the user uses the second device unit. For example, an audio reproducing device such as a portable CD player is used. Can be used more frequently.

[Brief description of the drawings]

FIG. 1 is a diagram showing a connection state between a portable CD player and a wireless telephone according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a connection state between a portable CD player and a wireless telephone according to a second embodiment of the present invention.

FIG. 3 is a diagram showing a connection state between a portable CD player and a wireless telephone according to a modification of the present invention.

FIG. 4 is a block diagram showing a wireless telephone according to the first embodiment of the present invention.

FIG. 5 is a block diagram showing a portable CD player according to the first embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Portable CD player, 3 ... Radiotelephone, 41 ... Radiotelephone part, 56 ... First control part,
59: second control unit, 60: pause signal generation circuit unit, 61: calling sound supply circuit unit

Claims (4)

[Claims] 1. A first device having a communication function of performing communication by radio waves, transmitting a voice signal from the own station to a partner station, and receiving a voice signal from the partner station, and reproducing the voice signal. A second device unit having a playback function; and a control unit that controls an operation of the second device unit according to whether the first device unit has received a call signal. Wireless telephone device. 2. The communication according to claim 1, wherein the control unit mutes the audio output from the second device unit when the first device unit receives the call signal. apparatus. 3. The control unit according to claim 1, wherein when the first device unit receives the ringing signal, a ringing tone is mixed with a voice output from the second device unit. The communication device as described. 4. The communication device according to claim 1, wherein the control unit suspends reproduction of the second device when the first device unit receives a call signal.