CN2411158Y

CN2411158Y - Mobile phone hands-free device that can automatically switch the speaker sound during a call

Info

Publication number: CN2411158Y
Application number: CN 00200781
Authority: CN
Inventors: 施鸿铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-26
Filing date: 2000-01-26
Publication date: 2000-12-20
Anticipated expiration: 2010-01-26

Abstract

A hand-free receiver for mobile telephone set able to automatically switch the sound of loudspeaker when talking features that an electromagnetic wave receiver is additionally arranged on the external signal line of mobile telephone set and a switching unit is additionally arranged between loudspeaker and main body of loudspeaker.

Description

The mobile telephone holding-free earphone device of speaker sound can automatically switch during conversation

The mobile telephone holding-free earphone device of speaker sound can automatically switch when the utility model relates to a kind of the conversation, especially finger is a kind of can be by an electromagnetic wave receiver, whether the induction vehicular telephone is in the state of conversation, thereby the Music centre loudspeaker that can switch automobile automatically in real time provides music or the handfree receiver unit of the sound of conversing.

Along with the opening of communication traffic, the Shen of vehicular telephone dress declines to a great extent with cost of the phone call, and the figure of family that do not drive less generally uses vehicular telephone in facility.Yet based on driving safety, many people can select for use the mobile telephone holding-free receiver to be equipped with.Take a broad view of the vehicular telephone receiver on the market, how can be divided into following several: one, earpiece type: joint need be inserted in the earpiece holes of vehicular telephone, and shape is like the earphone of walkman, just many microphones, this earphone is used for plug in ear, and microphone is used for folder and is attached to clothing.This kind structure, poor because of playback effect, sound is little, and can't be using simultaneously charging in the lump, so not liked by the customer.

Two, fixed type Cigarette lighter grafting type: this kind structure is that a compact horn and microphone are connected with on the connection-peg of Cigarette lighter, the other end is connected on the splicing interface of vehicular telephone, though it can make it to charge simultaneously, but still there is the defective that serious echo be can not hear clearly, had to sound.

Three, audiotape card casket switching formula: it is the signal with vehicular telephone, and the mat signal wire (SW) reaches audiotape transition card casket, so that sound is broadcasted by Music centre loudspeaker by auto audio equipment.This kind structure, though sound is clear than the former, but, more need in time to operate the sound equipment panel if listening to the radio during at ring or during CD, not only need press when steerman by telephone receiving, sound equipment is transformed into the audiotape player function, could listen to obtain the sound of talking, it increases the action that receives calls on the contrary, uses inconvenience, also dangerous property haves much room for improvement.

The mobile telephone holding-free earphone device of speaker sound can automatically switch when main purpose of the present utility model provides a kind of the conversation, it is the automobile-used mobile telephone holding-free earphone device of innovation, with the loudspeaker of auto audio equipment as the media of broadcasting conversation sound, therefore has sound quality clearly, particularly, it can respond to the talking state of vehicular telephone automatically, when vehicular telephone during at non-working condition, Music centre loudspeaker can be broadcasted the music of main system of audio, yet when vehicular telephone during in talking state, the concert of this Music centre loudspeaker is stopped automatically, and is replaced by the conversation sound of vehicular telephone.

The purpose of this utility model is achieved in that it includes: main system of audio, Music centre loudspeaker, vehicular telephone, microphone, charge circuit, microphone amplifying circuit and amplifying circuit, it is characterized in that: also include: an electromagnetic wave receiver, it places under the joint of vehicular telephone on the signal wire (SW), and this electromagnetic wave receiver can be used for detecting the talking state of vehicular telephone; And a shifter, this shifter place between main system of audio and the Music centre loudspeaker; By above-mentioned member, when vehicular telephone does not use, Music centre loudspeaker will receive the signal of main system of audio and play music; Otherwise, when vehicular telephone uses, electromagnetic wave receiver will be controlled shifter because of receiving electromagnetic wave, and the signal of main system of audio is cut off, make Music centre loudspeaker be connected to the circuit that is constituted by charge circuit, microphone amplifying circuit and amplifying circuit etc., and play conversation sound.

Wherein this shifter includes relay and driving circuit.

Wherein this shifter can connect an external loudspeaker.

Wherein this electromagnetic wave receiver can or and be established by a microchip treater (Micro Controller) replacement.

Characteristics of the present utility model are: add a shifter between former auto audio equipment main frame and Music centre loudspeaker, so, when vehicular telephone need be conversed, this shifter will be sent to main system of audio the signal cut of Music centre loudspeaker automatically, plays and the conversation signal of vehicular telephone is delivered to the Music centre loudspeaker place.

The utility model is to make aforementioned shifter reach the effect of automatic switchover, the spy adds an electromagnetic wave receiver on the signal wire (SW) of vehicular telephone, the characteristic of utilizing vehicular telephone the time can generate electromagnetic waves in conversation, and can respond to and control the switching state of shifter automatically.

Below in conjunction with preferred embodiment of the present utility model, describe the effect that structure of the present utility model is formed and produced in detail:

Fig. 1 is the connection diagram of former auto audio equipment main frame and Music centre loudspeaker.

Fig. 2 is the scheme drawing of the utility model embodiment.

Fig. 3 is an embodiment layout circle of the present utility model.

Fig. 4 is a circuit block diagram of the present utility model.

Fig. 5 is that of the present utility model another implemented circuit block diagram.

Fig. 6-Fig. 8 is an embodiment electrical schematic diagram of the present utility model.

At first see also between main system of audio shown in Figure 1, general 10 and the Music centre loudspeaker 12, mat signal wire (SW) 11 connects, so that auto audio equipment 10 can be sent to signals such as music Music centre loudspeaker 12 and broadcast sound; Fig. 2 is the connection diagram of the utility model device, and the utility model device 8 is inserted in signal wire (SW) 11 places, and so, when vehicular telephone 41 during at non-working condition, Music centre loudspeaker 12 can be broadcasted the music of main system of audio 10; Yet when vehicular telephone 41 during in talking state, the music signal of this main system of audio 10 can be cut off automatically, inputs to Music centre loudspeaker 12 places and plays and replaced by the conversation signal of vehicular telephone.

Please consult the configuration reference diagram of the utility model embodiment shown in Figure 3 again, the last lower end of vehicular telephone 41 is just like such usually, mat joint 16 is connected with signal wire (SW), be equipped with an electromagnetic wave receiver 3 on this signal wire (SW), and be connected to again in the utility model device 8, the utility model device 8 is circumscribed with microphone 42, and cigar lighter connecter 15 should the selectivity setting according to the connection of practical power, the utility model device 8 is connected with Music centre loudspeaker 12 with main system of audio 10 again in addition, also promptly: the playing sound of Music centre loudspeaker 12, relying on 8 decisions of the utility model device, can be the conversation sound of vehicular telephone 41 according to situation, or the musical sound of main system of audio 10.

Please consult detailed circuit diagram of block of the present utility model shown in Figure 4 again, it includes main system of audio 10, Music centre loudspeaker 12, cigarette lighter plug 15, joint 16, shifter 2, electromagnetic wave receiver 3, vehicular telephone 41, microphone 42, charge circuit 51, microphone amplifying circuit 52 and amplifying circuit 53 etc., this main system of audio 10, Music centre loudspeaker 12, vehicular telephone 41, wheat are filled wind 42, charge circuit 51, microphone amplifying circuit 52 and amplifying circuit 53 etc. and are conventional components, and principal character of the present utility model is:

One, the joint 16 at vehicular telephone 41 is arranged with an electromagnetic wave receiver 3, this electromagnetic wave receiver 3 can be connected with shifter 2, because vehicular telephone 41 is when conversation, talked about or given orders or instructions no matter be, the capital produces an electromagnetic wave, and this electromagnetic wave receiver 3 of mat can be known the running condition of vehicular telephone 41 exactly.

Two, between main system of audio 10 and Music centre loudspeaker 12, be provided with a shifter 2, the input end of this shifter 2 is respectively mobile telephone signal and main system of audio 10, and is output as Music centre loudspeaker 12, this shifter 2 need be looked the control of electromagnetic wave receiver 3, with the signal source of decision input.

By above-mentioned feature, form: when vehicular telephone 41 did not use, electromagnetic wave receiver 3 did not receive the electromagnetic wave that vehicular telephone 41 is sent, so shifter 2 will allow the music signal of main system of audio 10 to be sent to Music centre loudspeaker 12 broadcasts; Otherwise, when vehicular telephone 41 in use, electromagnetic wave receiver 3 receives the electromagnetic wave that vehicular telephone 41 is sent, will inform shifter 2 actions, make it the music signal of main system of audio 10 is cut off, and change with the mobile telephone signal conducting, so, the sound of talk just can be play by Music centre loudspeaker 12.

As from the foregoing; the advantage that the utility model is derived is: originally broadcast by the sound equipment 12 of music; though concert is cut off when vehicular telephone 41 conversations; yet just the connection of signal is interrupted basically; in other words, main system of audio 10 still is in normal operating state, so has the advantage of protection main system of audio 10; can be not frequent because of telephone receiving, the damage that causes main system of audio 10 switches to close.

As for shifter 2 of the present utility model when implementing, can utilize relay, the switching state of reaching conducting or opening circuit, so, relay between this main system of audio 10 and the Music centre loudspeaker 12, will set with the conducting is normality, only just understands escape and become to open circuit when obtaining the signal of electromagnetic wave receiver 3, even so arbitrary Parts Breakdown is arranged, also can guarantee the normal play of music.

Shifter 2 more includes driving circuit in addition, so that can order about the relay real-time action when obtaining the signal of electromagnetic wave receiver 3.

The utility model also can be connected with an external loudspeaker 55 at shifter 2 places, to satisfy different demands.

Power supply place as if power supply of the present utility model being connected to automobile can not use cigar lighter connecter 15.

The utility model also can Fig. 5 mode implement, this electromagnetic wave receiver 3 can by a microchip treater (Micro Controller) 31 replace or and establish, by this microchip treater (MicroController) 31, directly grasp the voltage level of joint 16 and vehicular telephone 41, also can reach the induction effect identical with electromagnetic wave receiver 3.

In sum, the mobile telephone holding-free earphone device of the speaker sound that can automatically switch during the utility model conversation, it can respond to the talking state of vehicular telephone automatically, and with the input source of sound of real-time switching Music centre loudspeaker, its convenience is quite outstanding.

Claims

1. A mobile phone hands-free hands-free device that can automatically switch the speaker sound during a call, which includes: a sound host, a sound speaker, a mobile phone, a microphone, a charging circuit, a microphone amplifier circuit and an amplifier circuit, and is characterized in that: it also includes There are: an electromagnetic wave receiver, which is placed on the signal line under the connector of the mobile phone, and the electromagnetic wave receiver can be used to detect the call status of the mobile phone; and, a switching device, which is placed between the audio host and the audio speaker ; By the above components, when the mobile phone is not in use, the audio speaker will receive the signal of the audio host and play music; otherwise, when the mobile phone is in use, the electromagnetic wave receiver will control the switching device due to receiving electromagnetic waves, so that the signal of the audio host is cut off, the audio speaker is connected to a circuit composed of a charging circuit, a microphone amplifier circuit, and an amplifier circuit, and plays a call sound.

2. The hands-free hands-free device for mobile phones that can automatically switch the horn sound during a call as claimed in claim 1, wherein the switching device includes a relay and a driving circuit.

3. The hands-free hands-free device for mobile phones that can automatically switch the sound of the speaker during a call as claimed in claim 1, wherein the switching device can be connected to an external speaker.

4. The hands-free hands-free device for mobile phones that can automatically switch the horn sound during a call as claimed in claim 1, wherein the electromagnetic wave receiver can be replaced by a microchip processor or installed in addition.