JPH1117578A - Adaptor for radio communication and radio equipment using the adaptor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adaptor for radio communication in which a speech is made by utterance only while the adaptor has only to be fitted to a portable telephone set, where it is not required to hold the portable telephone set directly by hand and a received signal by the portable telephone set is heard as a voice by using an existing radio signal receiver. SOLUTION: The adaptor is provided with a connector plug 4 plugged into a connector socket 3 of a portable telephone set 2, a sound pickup microphone MIC and with a circuit means that amplifies and modulates a reception signal sent from the portable telephone set 2, sends a frequency modulation signal in a radio wave, amplifies the voice signal sent from the sound pickup microphone MIC and outputting the amplified signal to the portable telephone set 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication adapter to be connected to a connector socket of a portable telephone, for example, and a wireless device using the adapter.

[0002]

2. Description of the Related Art For example, in a situation where a driver of a vehicle talks using a mobile phone while driving the vehicle, an adapter for a mobile phone that allows a user to talk without holding the mobile phone while driving the vehicle. Has been proposed.

FIG. 6 is a perspective view of a conventional mobile phone adapter. The mobile phone adapter 11 includes a connection plug 12 inserted into a jack of a vehicle lighter or the like, and a mobile phone 2.
A connector plug 13 for inserting and connecting to the connector socket 3 provided in the connector, a speaker 14 for audio output, a sound collecting microphone 15 and a connection cord 16, one end of the connection cord 16 is connected to the connector plug 13, A sound collecting microphone 15 is provided in the middle of the connection cord 16, a speaker 14 is connected to the other end of the connection cord 16, and the connection plug 12 is provided integrally with the speaker 14. The power of the speaker 14 is supplied by inserting the connection plug 12 into the jack.

A signal received from the portable telephone 2 is transferred to the speaker 11 while an audio signal from the sound collecting microphone 15 is transferred to the portable telephone 2 so that the portable telephone 2 does not have to be picked up directly. .

However, the conventional portable telephone adapter 11 has the following disadvantages.

[0006] Since the speaker and the mobile phone are connected by wire, if the vehicle vibrates while traveling on the road, the connection cord is shaken, which affects the signal transfer efficiency and quality.
Further, in order to receive power from the vehicle body side, it is necessary to connect to both the mobile phone and the vehicle body. Further, since the sound collecting microphone is located in the middle of the connecting cord, the connecting cord is shaken during running, and the sound collecting microphone is not fixed at a fixed position, so that the quality of the audio signal varies greatly.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to attach a mobile phone directly to a mobile phone, without having to directly hold the mobile phone by hand. While allowing you to listen as audio,
An object of the present invention is to provide a wireless communication adapter capable of making a telephone call simply by speaking and a wireless device using the adapter.

[0008]

According to a first aspect of the present invention, there is provided a wireless communication adapter having a connector plug for inserting into a connector socket of a mobile phone and a sound collecting microphone, and receiving a signal transmitted from the mobile phone. Circuit means for amplifying and transmitting the frequency-modulated signal by radio while amplifying the audio signal sent from the sound collecting microphone and outputting the amplified signal to the mobile phone is provided.

A wireless device according to a second aspect uses the wireless communication adapter according to the first aspect, and receives a frequency-modulated signal transmitted from the circuit means and outputs a sound. A wireless signal receiver is provided.

[0010] According to a third aspect of the present invention, there is provided a radio apparatus, wherein the radio signal receiver is a radio installed in a vehicle.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a wireless communication adapter and a mobile phone according to an embodiment of the present invention,
FIG. 2 is a main block diagram showing a wireless device using the wireless communication adapter, and FIG. 3 is a circuit diagram of circuit means provided in the wireless communication adapter.

As shown in FIG. 1, a wireless communication adapter 1
Is provided with a connector plug 4 for inserting and connecting to a connector socket 3 provided on the mobile phone 2 and a sound collecting microphone MIC.

In FIG. 2 and FIG. 3, a power supply and a received signal provided from the mobile phone 2 are transmitted from the mobile phone 2 to an interface LL of a circuit means 6 provided on a wireless communication adapter.
Supplied to The interface LL is supplied to other circuits in the circuit means at an appropriate timing by a power supply circuit including the amplifier A, the integrated circuit U2, and the transistor.
The reception signal sent from the mobile phone to the interface LL is amplified by an amplification circuit, and then, based on an oscillation pulse oscillated by the oscillation circuit, the frequency is modulated by a modulation circuit including the integrated circuit U1 and converted into a frequency modulation signal. The frequency modulated signal is wirelessly transmitted from the transmitting antenna by the output circuit.

After the audio signal sent from the sound collecting microphone MIC is amplified by the amplifier circuit, it is output to the interface LL by the output circuit, and the interface LL outputs the amplified audio signal to the mobile phone.

The wireless communication adapter 1 is used as follows. The connector plug 4 provided on the wireless communication adapter 1 is inserted into the connector socket 3 of the mobile phone 2 for connection. In this state, the mobile phone 2 can talk.
For example, automatic reception is assumed. FIG. 4 is a perspective view showing a first embodiment of a wireless device using the wireless communication adapter 1. The wireless communication adapter 1 amplifies and modulates a received signal sent from the mobile phone 2 and wirelessly transmits a frequency-modulated signal. The frequency-modulated signal transmitted by radio is received by the portable radio signal receiver 7, converted into an audio signal, and output from the speaker 8 as audio.

That is, the user can clearly hear the content of the talk of the other party with the radio signal receiver 7. When the user answers the talk of the other party, the user may speak and answer within the effective sound collecting range of the sound collecting microphone MIC of the wireless communication adapter 1.
The audio signal transmitted from the sound collecting microphone MIC is amplified, transferred to the mobile phone 2 via the connector plug 22, and transmitted from the mobile phone 2 to the other party.

FIG. 5 is a diagram showing a second embodiment of the wireless device using the wireless communication adapter 1, and shows an example in which the wireless signal receiver 7 is a radio 9 installed in a vehicle.

If there is an incoming call on the mobile phone 2 during driving, the user switches to a preset receiving channel on the radio 9 and then presses the talk key of the mobile phone 2. The wireless communication adapter 1 connected below the mobile phone 2 frequency-modulates the received signal sent from the mobile phone 2 to perform wireless transmission, and the transmitted frequency-modulated signal is received by the radio 9 and transmitted to the speaker 10. Is output as voice.

Therefore, even if the driver does not directly hold the mobile phone 2 with his own hands, he / she can clearly hear the content of the talk of the other party from the speaker 10 of the vehicle. When the driver answers the talk of the other party, it is not necessary to directly hold the mobile phone 2 by hand, but only to speak and answer within the effective sound collection range of the sound collection microphone MIC of the wireless communication adapter 1. Sound collecting microphone M
The audio signal sent from the IC is amplified and transferred to the mobile phone 2 via the connector plug 22, and is amplified.
Sent to the other party.

[0020]

According to the wireless communication adapter of the present invention,
It can be used simply by inserting the connector plug into the connector socket of the mobile phone, so it can be used simply by attaching it to the mobile phone, and there is no need for a separate cable connection cable. Since the received signal is amplified and modulated and the frequency-modulated signal is transmitted by radio, it is possible to use the existing radio signal receiver or vehicle radio to listen to the received content of the mobile phone as voice, Since the audio signal sent from the microphone is amplified and output to the mobile phone, it is possible to make a call only by speaking, and since the position of the sound collecting microphone is fixed at the fixed position, the quality of the audio signal is good.

According to the second aspect of the present invention, the contents of the portable telephone transmitted from the wireless communication adapter can be heard as sound by the mobile wireless signal receiver. Since the signal transfer efficiency and quality are higher and the wireless signal receiver is mobile as compared with the case of the wired connection, the speaker of the wireless signal receiver for outputting sound can be arranged freely.

According to the third aspect of the present invention, it is possible to make a call without having to hold a mobile phone directly while driving, and since there is no connection cord, the voice quality is not affected by the shaking of the running vehicle. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a wireless communication adapter and a mobile phone according to an embodiment of the present invention.

FIG. 2 is a main block diagram showing a wireless device using a wireless communication adapter.

FIG. 3 is a circuit diagram of circuit means provided in the wireless communication adapter.

FIG. 4 shows a first example of a wireless device using a wireless communication adapter.
Perspective view showing an embodiment

FIG. 5 shows a second example of the wireless device using the wireless communication adapter.
FIG.

FIG. 6 is a perspective view of a conventional mobile phone adapter.

[Explanation of symbols]

 Reference Signs List 1 wireless communication adapter 2 mobile phone 3 connector socket 4 connector plug 6 circuit means 7 wireless signal receiver 8 speaker 9 radio 10 speaker 11 mobile phone adapter (conventional) 12 connection plug 13 connector plug 14 speaker 15 sound collecting microphone 16 connection Code MIC Sound collecting microphone LL interface U1 integrated circuit U2 integrated circuit

──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. ⁶ Identification code FI H04M 1/21 H04B 7/26 V

Claims (3)

[Claims] 1. A portable telephone comprising a connector plug for insertion into a connector socket of a mobile phone and a sound collecting microphone, amplifying and modulating a received signal sent from the mobile phone and wirelessly transmitting a frequency modulation signal, and a sound collecting microphone. A wireless communication adapter comprising circuit means for amplifying the audio signal sent from the mobile phone and outputting the amplified audio signal to a mobile phone. 2. A wireless device using a wireless communication adapter according to claim 1, further comprising a mobile wireless signal receiver for receiving a frequency modulation signal transmitted from said circuit means and outputting a sound. apparatus. 3. The radio apparatus according to claim 2, wherein the radio signal receiver that receives the frequency modulation signal transmitted from the circuit unit and outputs the voice is a radio installed in a vehicle.