JP3035800U - Connection switching device between mobile stereo and mobile phone - Google Patents

Abstract

(57) [Abstract] (Correction) [Problem] Even if the mobile phone is in an incoming state while listening to music played on the mobile stereo, the earphone of the mobile stereo is not removed and the earphone of the mobile phone is removed. The mobile phone can be used hands-free by using it as a voice input / output means. SOLUTION: When a mobile phone 8 is in an incoming state while listening to a mobile stereo 6, a speaker of an earphone 7 (R side 7) is switched by switching a changeover switch 31.
The voice signal line (L side voice signal line 93 / R side voice signal line 94) of 1 / L side 72) is connected to the voice signal line (sending side voice signal line 95 / receiving side voice signal line 96) of the mobile phone. To be done. And the R side speaker of the earphone becomes the receiving speaker of the mobile phone,
The side speaker is a transmitting microphone.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a connection switching device for selecting any one of a plurality of connected external devices, and more particularly to a connection switching device for switching the connection between a mobile stereo and a mobile phone.

[0002]

[Prior art and problems]

 In recent years, a portable audio device that allows you to listen to music while walking, and a portable stereo that allows you to listen to it in stereo as well, and uses earphones to listen to music while not disturbing others. What has become widespread is centered around young people, and today most young people carry their portable stereos around and enjoy listening to their favorite musical performances while commuting to work or attending school or shopping.

Further, today, when it is desired to make contact, it can be used in most places, and since the usage fee is low, the financial burden is small. Therefore, mobile phones are mainly used by business people and young people. The number of units used is increasing rapidly. As a device related to the mobile phone, a call notification device that sells the mobile phone by vibrating or emitting light to notify that the mobile phone is in the ringing state is also sold. It is possible to know that the mobile phone is in the incoming call state regardless of whether or not.

For this reason, many businessmen and young people carry mobile stereos and mobile phones, and listen to music performances with mobile stereos while commuting to work, attending school, or shopping. Then, when the incoming call notification device informs the incoming status of the mobile phone during the movement, the mobile stereo is temporarily stopped, the mobile phone is used for a call, and the music performance is heard again on the mobile stereo. Is coming. However, when talking on the mobile phone, you cannot talk on the mobile phone without removing the earphones of the mobile stereo one by one from the ear. Since it had to be done, it was very troublesome to attach and detach this earphone.

[0005]

【Purpose】

 The present invention has been made in view of the above-mentioned problems, and even if the mobile phone becomes an incoming call while listening to music performance on the mobile stereo, the earphones of the mobile stereo can be kept in the ear. It is an object of the present invention to provide a connection switching device that can use a mobile phone.

[0006]

[Means to solve the problem]

 The gist of the present invention is that a cable connecting means for connecting a signal cable of an external device, a connection switching means for selecting the connected external device, a noise removing means for removing noise of the signal, and a signal amplifying means. A connection switching device having an amplifying means for performing, when the mobile phone is in an incoming state while using the mobile stereo, the earphone of the mobile stereo is used as a voice input / output means of the mobile phone. It is a connection switching device between a mobile stereo and a mobile phone.

The connection switching device of the present invention will be described in more detail. When the mobile phone is in an incoming state and a call is required while listening to music on the mobile stereo, the connection switching means of the connection switching device is operated. When the connection to the mobile phone is selected with the changeover switch, the earphone of the mobile stereo is used as the voice input / output means of the mobile phone, one of the earphone speakers is used as the receiving speaker, and the other is used as the transmitting microphone. It is a connection switching device that can.

Here, the earphone is a sounding device that is connected to a portable stereo or the like and directly listens to a music performance in stereo in the left and right ears, and of course, includes headphones and the like. Also, the sounding method of the earphone is not limited to the speaker.

The connection switching device is composed of a case made of resin or metal material, and a cable connecting means such as a jack for connecting a voice signal cable of a portable stereo / earphone / mobile phone is provided on the outer surface of the case. Connection switching means, such as a commonly used lever, push button, or slide switch for switching the connection between a mobile stereo and a mobile phone, is provided.In addition, only the audio signal when the earphone is used as a microphone is included in the case. There are provided a noise removing means composed of an electronic circuit using a low-frequency band pass filter (BPF) that passes through, and an amplifying means composed of an electronic circuit for amplifying a low-frequency audio signal. The connection switching device is interposed between the portable stereo and the earphone.

The cable connecting means is not limited to the jack as long as it can be surely connected, and an optimum one may be selected and used. Although the installation state of the changeover switch of the connection changeover means is not particularly limited, the changeover switch is provided so as to be flush with the case of the connection changeover device or retracted from the side of the case to prevent erroneous operation. Is desirable. It is desirable to use a bandpass filter (BPF) as the noise removing means for the purpose of use, but the means is not particularly limited as long as it does not interfere with the listening of the voice. The amplifying means is not particularly limited as long as the electronic circuit is configured by using a generally known technique. The power source of the amplification means uses the power source obtained from the microphone jack of the mobile phone. The side used as a speaker of the earphone and the side used as a microphone are not particularly limited, but noise elimination means / amplification means must be interposed in the voice signal line on the transmitting side of the mobile phone.

[0011]

[Action]

 Since the connection switching device of the present invention is configured as described above, if the mobile phone is in an incoming state while listening to a musical performance on the portable stereo, the connection switching means of the connection switching device is connected. Set the changeover switch of to the mobile phone side. As a result, the audio signal line connected from the portable stereo to the speaker of the earphone via the changeover switch is cut off at this changeover switch, and the audio signal line of the speaker of the earphone is connected to the audio signal line of the mobile phone. Then, one speaker of the earphone serves as a receiving speaker of the mobile phone for listening to the voice of the other party, and the other speaker of the mobile phone for collecting the voice produced by the speaker. It becomes a transmission microphone.

[0012]

【Example】

 1 is a circuit diagram showing an electronic circuit of the connection switching device, 1 is the connection switching device of the present invention, and 2 is a portable stereo 6・ Cable connecting means consisting of a jack or the like for connecting the audio signal cable 9 of the earphone 7 / mobile phone 8 and 3 is a connection disconnection consisting of a lever, a push button or a slide switch for switching the connection between the mobile stereo 6 and the mobile phone 8. The converting means 4 is a noise removing means composed of a bandpass filter (BPF) which cuts the high frequency of the audio signal and outputs only the low frequency, and the reference numeral 5 is an amplifying means composed of an electronic circuit for amplifying the low frequency audio signal.

Then, when the mobile phone 8 enters the incoming state while listening to music performance on the mobile stereo 6, the changeover switch 31 of the connection changeover means 3 of the connection changeover device 1 is operated on the side of the mobile phone. To the voice signal line (the voice signal line 95 on the transmitting side / the voice signal line 96 on the receiving side). As a result, the audio signal line (L side audio signal line 91 / R side audio signal line 92) -switched from the portable stereo 6 to the speaker (R side 71 / L side 72) of the earphone 7 via the changeover switch 31 The switches 31 to L side audio signal line 93 / R side audio signal line 94) are cut off at the changeover switch 31, and the audio signal line (L side 71 / L side 72) of the earphone 7 (L side) The voice signal line 93 / R side voice signal line 94) is connected to the voice signal line of the mobile phone 8 (speech side voice signal line 95 / receive side voice signal line 96). The speaker on the R side 71 of the earphone 7 serves as a receiving speaker of the mobile phone 8 for listening to the voice of the other party, and the speaker on the L side 72 serves as a portable speaker for collecting the voice produced by the user. It serves as a transmission microphone for the telephone 8.

FIG. 2 is a schematic diagram showing a connection state of the connection switching device, in which the audio signal cables 9 of the portable stereo 6, the earphone 7, and the cellular phone 8 are switched by the pin 97 of the audio signal cable 9. It is connected to the jack 21 of the device 1. If the mobile phone 8 enters the incoming state while listening to music on the mobile stereo 6, the R switch of the earphone 7 is switched by switching the changeover switch 31 of the connection switching device 1 to the mobile phone side. The speaker on the side 71 and the speaker on the L side 72 serve as a substitute for the receiving section 81 and the transmitting section 82 of the mobile phone 8, and the mobile phone 8 can be used hands-free.

[0015]

【effect】

 As described above, the connection switching device of the present invention can use the earphone of the portable stereo as the voice input / output means of the portable telephone, so that the portable telephone can receive the incoming call while listening to the musical performance on the portable stereo. You can talk on your mobile phone without removing the earphones from your ears even when the situation is reached. In addition, since the earphones have a high sound collection property, even a small voice can be collected sufficiently, so that it is possible to make a call even in a car such as a bus or train without disturbing the surroundings. In addition, because you can call hands-free, you can use both hands freely when you are talking while checking materials or making a call while writing.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing an electronic circuit of a connection switching device.

FIG. 2 is a schematic diagram showing a connection state of a connection switching device.

[Explanation of symbols]

1-connection switching device, 2-cable connecting means, 21-jack, 3-connection switching means, 31-switch, 4-noise removing means, 5-amplifying means, 6-portable stereo, 7-earphone, 71-R Side, 72-L side, 8-mobile phone,
81-receiver, 82-transmitter, 9-voice signal cable,
91-L side audio signal line, 92-R side audio signal line, 93-L side audio signal line, 94-R side audio signal line, 95-speaking side audio signal line, 96-receiving side audio signal line, 97 -Pin

Claims (2)

[Utility model registration claims] 1. A cable connecting means for connecting a signal cable of an external device, a connection switching means for selecting the connected external device, a noise removing means for removing signal noise, and an amplifying means for amplifying the signal. The connection switching device, when the mobile phone is in the incoming state while using the mobile stereo,
A connection switching device between a mobile stereo and a mobile phone, wherein the earphone of the mobile stereo is used as a voice input / output means of the mobile phone. 2. The device for switching connection between a mobile stereo and a mobile phone according to claim 1, wherein the noise removing means comprises a bandpass filter (BPF).