JP2568030Y2 - Telephone system - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone system comprising a telephone and an audio device, and more particularly to a telephone system comprising a vehicle-mounted audio device and a portable telephone having a communication function for operating the telephone while driving a vehicle. It relates to a preferred telephone system.

[0002]

2. Description of the Related Art Hitherto, car audio equipment such as a car stereo, which can be connected to a plurality of source equipment to select and listen to a desired source, has been used effectively for listening to music. For example, the plurality of source devices F
Reproduction signals from an M / AM radio receiver, a cassette tape player, a CD player, an in-vehicle TV, and the like are connected to a car stereo, and stereo reproduction is performed from a plurality of in-vehicle speakers mounted inside the vehicle.

On the other hand, a portable telephone having a mobile communication function for use in a vehicle is used in an independent state separately from the above-described acoustic device for a vehicle, and the acoustic device for a vehicle and the portable telephone are shown in FIGS. Many items shown in FIG. 5 were provided.
FIG. 4 is a block diagram of a mobile phone having a mobile communication function,
FIG. 5 is a block diagram of the car stereo.

In FIG. 1, reference numeral 1 denotes a transmitting / receiving antenna of a portable telephone, and this transmitting / receiving antenna 1 is connected to a modulator 2 and a demodulator 4 of the telephone. 7 is a control unit,
The control unit 7 is configured by a microcomputer or the like, and can control the modulation unit 2 and the demodulation unit 4 and the like. 8
Is a dial operating device connected to the control unit 7, and 9 is a hook switch of the telephone. Reference numeral 40 denotes a telephone handset, which is equipped with a receiver 40a and a transmitter 40b.

[0005] The portable telephone constructed in this manner is a handset.
Hook switch 9 operates by lifting 40,
When the dial operating device 8 for making a telephone call is operated, the control unit 7 can transmit dial key data to the relay station of the telephone line via the modulation unit 2 and call the other station through the telephone line.

As described above, when the called station is called, the calling party modulates the voice signal from the microphone of the transmitter 40b by the modulator 2 and transmits it as a radio communication signal from the transmitting / receiving antenna 1. On the other hand, the received signal received by the transmitting / receiving antenna 1 is demodulated by the demodulation unit 4, and the demodulated audio signal is received by the receiver 40a.
The user was able to make a telephone call from inside the vehicle while driving using the communication function.

On the other hand, in the car stereo block diagram shown in FIG. 5, reference numeral 20 denotes a receiving antenna, and a broadcast received by the receiving antenna 20 is reproduced by an FM / AM tuner 21. 22 is a cassette player section, 23 is an external input terminal, and this external input terminal 23 has another external source device,
For example, a reproduction signal from a TV set, a VTR, a CD player, or the like is added.

Reference numeral 24 denotes a source switch. The reproduced signal selected by the switch 24 is amplified by an output amplifier 27 and output from a plurality of speakers 29 mounted inside the vehicle via a mute circuit 28.

Reference numeral 31 denotes a control unit for controlling the source device such as the FM / AM tuner unit 21 and the switching unit 24, and generally comprises a microcomputer or the like as described above. The control unit 31 includes an infrared remote control reception unit 32 and an operation unit 33.
Are connected, and the data processed by the control unit 31 is displayed on the display unit.

The car stereo constructed as described above has an operation unit
According to the operation data from 33, any desired music or the like can be heard from any source device. Further, the user could operate a remote controller (not shown) located at hand to reproduce a desired source and listen to music according to the operation data received by the infrared remote control receiver 32.

That is, the user who is driving the vehicle is talking on the car stereo by operating the dial operating device 8 with a portable telephone as needed while listening to favorite music from, for example, the cassette player unit 22 or the like. Was.

[0012]

However, since the above-mentioned conventional vehicle-mounted mobile phone and the car stereo are used independently, when listening to desired music from the car stereo while driving the vehicle, Even if the telephone receives an incoming call and emits a ring tone, it is difficult to hear, or the ring tone cannot be heard and a telephone call cannot be made.

When making a telephone call, the portable telephone is held in hand to transmit from the transmitter 40b, and when a voice signal from the other party is to be heard from the receiver 40a, the volume level of the speaker output of the car stereo is adjusted. An operation such as reducing the size of the mobile phone is required. In particular, the operation of the mobile phone during driving the vehicle has a problem in safe driving of the vehicle.

[0014] As described above, the telephone conversation during driving of the vehicle is troublesome and troublesome because the operation of both the mobile phone and the car stereo is performed. After the telephone call, there is a disadvantage that an operation of returning the adjustment of the volume level of the output of the car stereo to the original state is required.

The present invention has been made in view of the above points, and aims at solving the drawbacks of the prior art, transmitting a signal from an external microphone of a portable telephone, and transmitting an incoming signal to the telephone. F of car stereo by function
The M / AM tuner unit can receive and output a speaker. On the other hand, control data from a mobile phone is supplied via an infrared remote control receiving unit of a car stereo, and automatically controls each unit of the car stereo to make a telephone call. An object of the present invention is to provide a telephone system capable of simplifying a call operation and ensuring the safety of driving a vehicle.

[0016]

The telephone system of the present invention modulates the voice signal from the transmitter of the telephone by the modulating section and transmits it from the transmitting / receiving antenna, and demodulates the received signal of the transmitting / receiving antenna by the demodulation section. A telephone having a communication function of receiving by a handset and incorporating a control unit for controlling the modulation unit and the demodulation unit and a reproduction signal from a plurality of source devices such as an FM / AM tuner unit and a cassette player unit are selected by a switch. An audio device that outputs sound from a plurality of speakers through a mute circuit, and a control unit that controls each unit of the audio device,
This is a telephone system including an infrared remote control receiving unit connected to the control unit and audio equipment capable of external remote control.

[0017] An external transmitting microphone for supplying an audio signal to the modulation unit of the telephone of the telephone system, a second modulation unit to which an output signal of the demodulation unit is supplied, and a connection to the second modulation unit. A transmitting antenna, and the above, an optical modulation unit to which information output data from the control unit is supplied, and an infrared remote control transmission unit to which this optically modulated information output data is provided, while the A second mute circuit to which the output of the source switcher is supplied, an adder to which the output of the second mute circuit is supplied, and a signal sound generator connected to another input of the adder. The information output data from the infrared remote control transmission unit of the telephone is received by the infrared remote control reception unit of the audio device to control the circuit inside the audio device, and the demodulation unit output signal of the telephone is transmitted from the transmission antenna. And, which is constituted so as to receive said at FM / AM tuner section of the audio device.

[0018]

According to the present invention, an audio device for selecting reproduced signals from a plurality of source devices and outputting sound from a plurality of speakers, for example, a car stereo and a mobile phone having a mobile communication function are connected by a communication function. The control unit that controls the operation of the car stereo and the control unit that controls the operation of the mobile phone are connected by a transmission / reception function by infrared remote control communication to connect the respective components of the car stereo and the mobile phone. Controlled.

The above-mentioned portable telephone is provided with an external microphone for transmission, and it is possible to make a telephone call while driving the vehicle via the external microphone for transmission, and an audio signal from the external microphone for transmission is transmitted via a modulation unit. Transmitted from the transmitting and receiving antenna,
The telephone reception signal received by the transmission / reception antenna is supplied to the second modulation unit via the demodulation unit, and transmitted from the transmission antenna provided in the mobile phone.

On the other hand, control data from a control section for controlling the telephone call function of the portable telephone is transmitted from an infrared remote control transmitting section via a light modulating section, and an infrared transmitting signal from the infrared remote control transmitting section is transmitted to a car stereo infrared transmitting section. It is supplied to a remote control receiving unit, controls a FM / AM tuner unit and a source switcher of a car stereo, and can receive a telephone reception signal from a transmission antenna of the mobile phone.

As described above, the telephone reception signal transmitted from the transmission antenna of the portable telephone can be received by the FM / AM tuner section via the reception antenna of the car stereo, and output from the in-vehicle speaker via the output amplifier. it can.

Also, when listening to music or the like from a cassette player section by a car stereo, receiving an incoming call signal with a portable telephone, a control section of the portable telephone through an infrared remote control transmitting section. The received information of the incoming signal is supplied to the control unit via the infrared remote control receiving unit of the car stereo, and the control unit of the car stereo operates the built-in signal tone generating unit to generate the telephone ring tone with the signal tone. And supplies it to the adder.

On the other hand, in the adder, the volume level of the music signal being listened to is set in a second stage provided after the source switch.
The signal can be reduced by the mute circuit, and can be mixed with the signal sound of the ringing tone and output to the speaker, so that the user while driving the vehicle can clearly hear the ringing tone of the telephone while listening to music. .

As described above, by connecting the control data between the car stereo and the mobile phone by infrared remote control transmission / reception, an external microphone for transmitting the phone and a speaker of the car stereo for outputting a reception sound at the time of incoming call and telephone call. Makes it easy to make a phone call, and allows the user while driving the vehicle to make a hands-free phone call with just a simple operation of the phone systemized mobile phone without operating each car stereo or mobile phone Becomes
Safety of vehicle operation can be ensured.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a telephone system according to the present invention will be described with reference to FIGS. The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 is a block diagram of a mobile phone, FIG. 2 is a block diagram of a car stereo, and FIG. 3 is a block diagram of a car stereo of another embodiment.

In FIG. 1, reference numeral 3 denotes a transmitting external microphone provided in the portable telephone, and the transmitting external microphone 3 is connected to the modulation unit 2. Reference numeral 5 denotes a second modulator to which a demodulated output signal of the demodulator 4 of the mobile phone is supplied.
The demodulated signal modulated by the modulator 5 is transmitted from the transmission antenna 6. Reference numeral 10 denotes an optical modulator to which control data from the controller 7 is supplied. The control data optically modulated by the optical modulator 10 is transmitted via an infrared remote controller transmitter 11.

In the portable telephone constructed as described above, the hook switch 9 is operated to set the telephone into a talking state, and the dial operating device 8 can be operated to call the other party. Is transmitted from the transmitting / receiving antenna 1 via the modulating unit 2.

On the other hand, the incoming telephone signal received by the transmission / reception antenna 1 is demodulated into a voice signal by the demodulation unit 4 and supplied to the second modulation unit 5, where the second modulation unit 5 can receive a car stereo signal. The frequency is FM or AM modulated, and the modulated telephone reception signal is transmitted as a weak radio wave to the car stereo via the transmission antenna 6.

The setting information of the dial operation device 8 and the hook switch 9 serving as a transmission / reception / end switch is signal-processed by the control unit 7, and the operation of the modulation unit 2 and the demodulation unit 4 is controlled. Modulates and transmits the oscillation signal and ringing signal of the phone,
A busy signal can be demodulated.

Further, control data corresponding to the signal controlled by the control unit 7 is converted into an optical signal as a remote control command for controlling the car stereo by the light modulation unit 10, and the infrared remote control transmitting unit 11 transmits the infrared signal of the car stereo. The information is transmitted to the receiving unit 32 and can control each unit of the car stereo.

On the other hand, in the car stereo of the on-vehicle audio equipment shown in FIG. 2, reference numeral 25 denotes a second mute circuit provided at the subsequent stage of the source switch 24, and controls the volume level by control data from the control unit 31. The controlled mute output signal is supplied to the adder 26. Reference numeral 30 denotes a signal sound generating unit. The signal sound generating unit 30 generates various signal sounds according to control data from the control unit 31, is applied to the other input terminal of the adder 26, and Mute circuit 25
, And supplied to the output amplifier 27.

In the car stereo constructed as described above, generally, by operating an operation unit 33 connected to a control unit 31, an FM / AM tuner unit 21, a cassette player unit 22, and a plurality of built-in source devices are provided. Or external input terminal
Switch the playback signal from another source device connected to
The user can listen to the selected desired reproduction music signal or the like from the speaker 29 via the output amplifier 27, and various information on the operating state of the car stereo is displayed on the display unit.

In place of the operation of the operation unit 33,
Operation data from an infrared remote controller (not shown) provided outside is transmitted to the infrared remote control receiving unit 32, and the car stereo receiving this infrared remote control signal can control each part of the car stereo in the same manner as described above. .

As described above, when the car stereo is operating to listen to music from a desired source device and the portable telephone receives the incoming call signal, the control section 7 of the portable telephone transmits the incoming information to the infrared. The signal is transmitted from the remote control transmission unit 11 to the infrared remote control reception unit 32 of the car stereo, the signal sound generation unit 30 incorporated in the car stereo is operated to generate the signal sound of the incoming call, and is supplied to the adder 26. The music signal can be mixed with the music signal, and at the same time, the second mute circuit 25 provided in the preceding stage of the adder 26 is controlled to attenuate the music signal which has been listened so far. The signal is output from the speaker 29 in a mixed state.

Thereafter, the music signal is turned off by the second mute circuit 25, and only the incoming signal sound is output from the speaker 29, so that the user can clearly hear the incoming signal sound when receiving a telephone call even while listening to music. .

The above operation is the same for an oscillating signal, a ringing signal, and a busy signal when making a call with a portable telephone. Data corresponding to the oscillating signal and the like is transmitted to the infrared remote control receiver 32 of the car stereo. Upon reception, the car stereo controller 31 generates different signal tones in the signal tone generator 30 corresponding to the various telephone signals, and mixes the muted music signal with the volume level attenuated to a predetermined level. Can be output.

As described above, when the signal sound of the incoming call is heard and the hook switch 9 of the portable telephone is operated, and the portable telephone enters the telephone call state, the incoming signal received by this portable telephone is transmitted from the transmitting antenna 6 to the car stereo. Sent to. On the other hand, the control unit 7 of the mobile phone transmits the telephone call information from the infrared remote control transmitting unit 11 to the infrared remote control receiving unit of the car stereo.
The control unit 31 of the car stereo controls the FM / AM tuner unit 21 to set a predetermined reception frequency, and receives the telephone reception signal transmitted from the transmission antenna 6 of the mobile phone. can do.

At the same time, the control section 31 of the car stereo switches and selects the source switch 24 to be connected to the output contact of the FM / AM tuner section 21, and further stops the signal sound generation section 30 from generating the signal sound. , The first and second mute circuits 28,2
5, the mute operation is released, and only the telephone call signal of the portable telephone can be amplified by the output amplifier 27 and output from the speaker 29, and the telephone reception signal can be heard from the speaker 29 of the car stereo.

That is, various signals output from the telephone during a telephone call, the reception signal of the telephone, and the external microphone 3 for transmission.
All call voice signals such as response signals from
Alternatively, the signal can be transmitted from the transmitting antenna 6 as an AM-modulated radio wave, received by the FM / AM tuner section 21 of the car stereo, and output from the speaker 29. You can talk.

The above operation is also performed when making a call. When data corresponding to a response signal transmitted from the portable telephone to the infrared remote control receiver 32 of the car stereo is received, the car stereo operates in the same manner as described above. Then, the telephone response signal can be output from the speaker 29 of the car stereo.

When the telephone call on the portable telephone is completed and the hook switch 9 of the transmission / reception / end switch is turned on-hook to the end state, data corresponding to the end signal is transmitted to the infrared remote control receiver 32 of the car stereo by the portable telephone. The car stereo, which has received the information data indicating the end signal sent from the infrared remote control transmitting unit 11, stores the state immediately before performing the telephone call operation of the telephone so that each part of the car stereo is brought to the state immediately before. It can be controlled and automatically returned to its original state.

Also, even if the telephone call is turned off by operating the hook switch 9 of the telephone while calling or talking to the other party during the telephone operation, the above-mentioned call termination information is transmitted to the infrared remote control receiver of the car stereo in the same manner as described above. Since it is sent to 32,
The same call termination operation as described above can be performed.

As described above, the command data corresponding to the various signals transmitted by the infrared remote controller from the portable telephone may be transmitted by the infrared remote controller during a period in which the telephone is operating. Alternatively, a command signal may be transmitted which is divided into an operation start signal and an operation end signal, and the same operation can be performed by the operation start signal and the operation end signal.

As described above, the various signals and voice signals of the telephone between the mobile phone and the car stereo are connected by the wireless communication function, and the equipment control between the mobile phone and the car stereo is controlled by the infrared remote controller, thereby driving the vehicle. The middle user can use the mobile phone with a simple operation even when listening to music from the car stereo, and can also operate the telephone in a hands-free state, thereby ensuring the safety of driving the vehicle.

FIG. 3 is a block diagram showing another embodiment of the car stereo.
The music signal selected and output by the source switcher 24 is amplified by the output amplifier 27, and then attenuated to a predetermined volume level by the second mute circuit 25.
A first mute circuit 28 mixes with the signal tone from the signal tone generator 30 at 26, and finally turns off the music output.
Is output to the speaker 29 via the.

Also in the car stereo shown in FIG. 3 configured as described above, similarly to the above, each part is controlled by the control data by the infrared remote controller with the portable telephone, and various signals at the time of telephone call and voice signals at the time of telephone call are determined in advance. The sound can be mixed at the reduced volume level or output to the speaker 29 alone, and the same effect as described above can be obtained.

Although the signal sound generator 30 is provided independently inside the car stereo, the various signal sounds generated by the signal sound generator 30 can be generated by the microcomputer of the controller 31. is there.

Although the above description has been made by combining a portable telephone having a mobile communication function with a car stereo of an on-vehicle audio device, the present invention can be similarly realized in a general home telephone or a home stereo system. That is, when listening to stereo music at home, when receiving a telephone call or during a telephone call, it can be controlled and operated in the same manner as described above,
The contents of this invention can be applied.

[0049]

As described above, the telephone system according to the present invention transmits various signals during a telephone call of a portable telephone having a mobile communication function and a call voice signal at a predetermined radio frequency.
Received by the FM / AM tuner section of the car stereo,
Since various control data of the mobile phone can be transmitted to the car stereo by the infrared remote controller and the operation of the car stereo can be controlled, various signals and voice signals of the telephone call of the mobile phone can be heard from the speaker of the car stereo. In addition, since telephone transmission can be performed with an external microphone for transmission, operation of the telephone is simplified, and telephone calls can be made in a hands-free state even while listening to music from a car stereo, and vehicle driving safety is ensured. There is an effect that the property can be secured.

Also, if there is an incoming call of the portable telephone at the time of listening to the music of the car stereo, the volume level of the music is automatically attenuated, and the signal sound generated by the incoming call can be mixed and heard from the speaker. There is also an effect that a telephone call can be accurately made without overlooking the ring tone of the telephone.

Further, at the end of the telephone call, the car stereo can be automatically returned to the state immediately before the telephone call, so that the user who is driving the vehicle does not have to perform the operation of the telephone call. In addition, there is also an effect that it is possible to return to the original music listening state and continue listening to music even after a telephone call.

Moreover, it is simple in structure and can be constructed at a low cost to construct an in-vehicle telephone system. Further, the present invention can be applied to a similar telephone system using an ordinary home stereo system. It has excellent features such as being easy to implement.

[Brief description of the drawings]

FIG. 1 is a block diagram of a mobile phone having a mobile communication function, showing an embodiment of a telephone system according to the present invention.

FIG. 2 is a block diagram showing an in-vehicle audio device of the telephone system of the present invention.

FIG. 3 is a block diagram illustrating an on-vehicle acoustic device according to another embodiment.

FIG. 4 is a block diagram showing a conventional mobile phone.

FIG. 5 is a block diagram showing a conventional on-vehicle acoustic device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transmission / reception antenna 2 Modulation part 3 External microphone for transmission 4 Demodulation part 5 Second modulation part 6 Transmission antenna 7 Control part of mobile phone 8 Dial operation device 9 Hook switch 10 Light modulation part 11 Infrared remote control transmission part 20 Reception antenna 21 FM / AM tuner section 22 Cassette player section 23 External input terminal 24 Source switch 25 Second mute circuit 26 Adder 27 Output amplifier 28 First mute circuit 29 Speaker 30 Signal tone generator 31 Car stereo controller 32 Infrared remote controller Receiving part 33 Operating part 34 Control part 40 Handset 40a Handset 40b Handset

Claims (1)

(57) [Scope of request for utility model registration] 1. A communication function of modulating a voice signal from a transmitter of a telephone with a modulation unit and transmitting the modulated signal from a transmission / reception antenna, and demodulating a reception signal of the transmission / reception antenna by a demodulation unit and receiving by a receiver. A telephone having a built-in control unit for controlling the modulation unit and the demodulation unit; and a plurality of speakers via a mute circuit by selecting a reproduction signal from a plurality of source devices of an FM / AM tuner unit or a cassette player unit with a switch. The telephone system includes an audio device that outputs more sound, a control unit that controls each unit of the audio device, and an audio device that can control an external remote control by incorporating an infrared remote control receiving unit connected to the control unit. A transmitting external microphone for supplying an audio signal to the modulator of the telephone, a second modulator for supplying an output signal of the demodulator, and a transmitting amplifier connected to the second modulator. A light modulation section to which information output data from the control section is supplied, and an infrared remote control transmission section to which the light-modulated information output data is supplied. A second mute circuit to which an output is supplied, an adder to which an output of the second mute circuit is supplied, and a signal tone generator connected to another input of the adder; The information output data from the infrared remote control transmission unit of the audio device is received by the infrared remote control reception unit of the audio device, and the internal circuit of the audio device is controlled, and the demodulation unit output signal of the telephone is transmitted from the transmission antenna, FM / A
A telephone system, characterized in that the telephone system is configured to receive the signal by an M tuner unit.