CN2377142Y - Improved handfree receiver for mobile phone - Google Patents

Abstract

The utility model relates to an improved hand-free receiver for mobile phones. The utility model is characterized in that the inside of a main body of the hand-free receiver is provided with an electronic switch which is respectively connected with a power supply, a charging circuit, an amplifier, a tone process circuit, a sound source control CPU, an antenna control circuit, a car audio and an acoustic horn; the hand-free receiver is connected with the mobile phone by the signal lines; the antenna control circuit matching with the hand-free receivers with various styles to use is a standard suite, which provides the mobile phone with convenient and high-quality communication effect, ensures the driving safety, and avoids reducing the antenna service life.

Description

Improved mobile telephone holding-free receiver

The utility model relates to a kind of improved mobile telephone holding-free receiver, and this Handless can prevent the automatic telescopic atenna malfunction of automobile.

Because the arrival of telecommunications privatization, add the opening of mobile telephone service, make the phone user be doubled and redoubled, under the situation that demand day by day increases, also improve the functional requirement of vehicular telephone thereupon in market, the relevant peripheral product also releases one after another, wherein be expected most with the mobile telephone holding-free receiver that uses on the car again, yet vehicular telephone makes rapid progress, member in the one family may use the vehicular telephone of different type of machines, so, only can be used in the mobile telephone holding-free receiver of single type, also difficulty to meet market required; Because growth in the living standard, automobile generally also all disposes advanced audio, and antenna also adopts telescopic automatically mostly; Use is in conjunction with the Handless of auto audio equipment, and when vehicular telephone was sent a telegram here, the Handless meeting closing automobile sound equipment in conjunction with auto audio equipment made caller voice by exporting in the horn trumpet; Because auto audio equipment is by SELF CL, make antenna also fall thereupon, wait talk-through after, Handless again can the opening automobile sound equipment, antenna also thereby rise so causes the lost of life of buggy whip repeatedly easily, fault rate also increases.

At the shortcoming of prior art, the purpose of this utility model provides a kind of improved mobile telephone holding-free receiver, to prevent the automatic telescopic atenna malfunction of automobile; During the vehicular telephone incoming call, Auto-Sensing automobile state at that time, and export the state that control signal is kept antenna as required, avoid the unnecessary lifting of buggy whip.

For achieving the above object, the utility model provides a kind of improved mobile telephone holding-free receiver, mainly the Handless main body of being made up of an electronic switch, a power supply and charge circuit, an amplifier and tonequality treatment circuit, a source of sound Controlled CPU and an antenna controling circuit cooperates a signal wire (SW) to form; It is characterized in that: an electronic switch is subjected to the triggering of source of sound Controlled CPU and controls the speaker sound source is auto audio equipment or vehicular telephone, SELF CL auto audio equipment when vehicular telephone is sent a telegram here; The source of sound Controlled CPU connects vehicular telephone and Handless for signal wire (SW), the signal voltage of its input source of sound Controlled CPU, no matter be that HI, LO or tandem signal all are made as initial value (being the standby value) and at vehicular telephone output signal when changing (be standby signal) when change of voltage is incoming telephone signal, promptly export a signal control electronic switch, the vehicular telephone caller voice is changeed by loudspeaker output, and the closing automobile sound equipment; When the source of sound Controlled CPU is desired to close or during the opening automobile sound equipment, antenna controling circuit is the state of detecting automobile earlier, and the state of antenna when optionally exporting a control signal and closing to keep auto audio equipment, said elements is made up; And the antenna controling circuit that the Handless main body that supplies different styles is used can independently be made a standard external member.

Provide a kind of improved mobile telephone holding-free receiver that prevents the automatic telescopic atenna malfunction of automobile by the utility model, by control and the output that reaches in conjunction with auto audio equipment, provide vehicular telephone convenient and high-quality communication effect, guarantee traffic safety and the control by antenna controling circuit, make buggy whip can not produce unnecessary lifting, avoid causing the reduction in antenna life-span because of using Handless.

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

Fig. 1 is the scheme drawing that connects of the utility model and auto audio equipment, vehicular telephone;

Fig. 2 is the utility model signal wire (SW) scheme drawing;

Fig. 3 is the utility model specific embodiment scheme drawing;

Fig. 4 is the utility model detecting buggy whip circuit diagram;

Fig. 5 is the utility model physical circuit scheme drawing;

Fig. 6 is the utility model antenna control flow chart.

Important figure number explanation

1; Handless main body 11; One electronic switch

12; One power supply and charge circuit 13; One amplifier and tonequality treatment circuit

14; Source of sound Controlled CPU 15; One antenna controling circuit

2; Auto audio equipment 21; 22; Loudspeaker

23; Sound goes out end 24; The auto audio equipment power input

25; Power supply source 26; Buggy whip

3; Vehicular telephone 4; Signal wire (SW)

41; But winding body 42; The vehicular telephone plug

421; Conductor 43; Signal plug

S; Node

Be the scheme drawing that connects of the utility model and auto audio equipment, vehicular telephone as shown in Figure 1, the main Handless main body of forming by an electronic switch 11, a power supply and charge circuit 12, an amplifier and tonequality treatment circuit 13, a source of sound Controlled CPU 14 and an antenna controling circuit 15 etc., cooperate a signal wire (SW) to form, wherein:

One electronic switch 11 is subjected to the triggering of source of sound Controlled CPU 14 and the sound source of controlling loudspeaker 21 is auto audio equipment 2 or vehicular telephone 3, and when vehicular telephone is sent a telegram here SELF CL auto audio equipment 2, automatically opening automobile sound equipment 2 again when waiting talk-through.

One power supply and charge circuit 12 provide vehicular telephone 3 suitable power supply and charge power supply, can charge at any time for the battery of vehicular telephone 3.

One amplifier and tonequality treatment circuit 13 with the incoming signal amplification of vehicular telephone 3, use for the pronunciation of rear end output, and eliminate input echo and sound impurity, reduce former sound distortion.

One source of sound Controlled CPU 14, when connecting vehicular telephone 3 and Handless main body 1 for signal wire (SW) 4, the signal voltage of input source of sound Controlled CPU 14, no matter be that HI (AI), LO (A2) or tandem signal (A3) all are made as initial value (being the standby value), and when vehicular telephone 1 output signal voltage is changed to incoming telephone signal (when standby signal changes), promptly export a signal control electronic switch 11, vehicular telephone 3 caller voices are changeed by loudspeaker 21 outputs, and closing automobile sound equipment 2.

As shown in Figure 2, one signal wire (SW) 4, but winding body 41 with a suitable length, one end is provided with the vehicular telephone plug 42 of corresponding vehicular telephone 3 signal output sockets, for the signal output socket that is plugged in vehicular telephone 3, plug 42 front ends are provided with the conductor 421 of corresponding vehicular telephone 3 each output point of socket, and the arrangement by conductor 421 is inserted points with the various vehicular telephone 3 of correspondence, and end is provided with a Signal plug 43 that can plug Handless main body 1 in addition.

One antenna controling circuit 15, when source of sound Controlled CPU 14 is desired to close or during opening automobile sound equipment 2, the state of detecting buggy whip 26 earlier, and optionally export the state of control signal antenna 26 when keeping auto audio equipment 2.

As shown in Figure 3, combination by said elements, cooperate auto audio equipment so that the function of Handless to be provided, the sound that Handless main body 1 can be installed in auto audio equipment 2 during use goes out end 23 and automotive acoustic speaker 21, in the middle of 22 and in the middle of auto audio equipment power input 24 and the power supply source 25, when vehicular telephone is sent a telegram here, source of sound Controlled CPU 14 outputs one signal control electronic switch 11 and antenna controling circuit, transfer to auto audio equipment 2 quiet or closing automobile sound equipment 2 power supplys, and the input end of automotive acoustic speaker 21 connected Handless main body 1, caller voice is adjusted by amplifier and tonequality treatment circuit 13, after reducing the call tone quality distortion, play by loudspeaker 21 by the switching of electronic switch 11; When vehicular telephone 3 is finished using, when the standby signal of vehicular telephone was replied initial value, source of sound Controlled CPU 14 triggered control signals and gives electronic switch 11, will export source of sound and go back to auto audio equipment (2) by amplifier and tonequality treatment circuit (13).

The buggy whip part is as Fig. 4 and shown in Figure 5, and buggy whip is an independent current source; Whether its braking principle moves and exports control signals and control relay or the decision of other control structures by auto audio equipment 2; Therefore, when vehicular telephone 3 incoming calls, source of sound Controlled CPU 14 can be given antenna controling circuit 15 by the output control signal, antenna controling circuit 15 is that the state of node S detecting buggy whip 26 is to rise or descend, and export the relay that a signal is given 26 actions of Control of Automobile antenna, to keep the action of relay, again by control electronic switch 11 closing automobile sound equipments 2, antenna 26 lifting repeatedly that causes owing to closing of auto audio equipment 2 in the time of so just can avoiding using Handless 1 incoming call answering.

As shown in Figure 6, the arrangement above-mentioned steps is as follows:

1, detecting comes electricity condition.

When 2, source of sound Controlled CPU 14 is judged as incoming call, promptly exports a signal and give antenna controling circuit 15, antenna controling circuit 15 is also detected the state of buggy whip 26.

When 3, the buggy whip that records of antenna controling circuit 15 26 is for propradation, i.e. output control HI signal (promptly controlling voltage), with the motion (promptly obtaining control signal) of keeping antenna relay unit, on the contrary output-LO signal (promptly opening circuit) then.

4, electronic switch 11 is closed auto audio equipment 2, and the mouth of automotive acoustic speaker 21 is connected Handless main body 1, and caller voice is adjusted by amplifier and tonequality treatment circuit 13, is exported by loudspeaker 21 after the reduction conversation distortion.

5, behind the end of conversation, electronic switch 11 reopens auto audio equipment 2 power supplys, and loudspeaker 21 input sources of sound are gone back to auto audio equipment 2.

6, antenna controling circuit 15 stops to export control signal, and the antenna control is returned auto audio equipment 2.

7, finish, and repeating step 1.

Antenna controling circuit of the present utility model can independently be made standard control external member, being suitable for the different Handless of each money, and need not be with above-mentioned Handless.

In sum, the utility model is simple in structure, can pass through antenna controling circuit, and antenna problem such as lifting has repeatedly been promoted function when solving incoming call answering fully.

Claims (3)

1, a kind of improved mobile telephone holding-free receiver, it is characterized in that: establish an electronic switch in the Handless main body, this electronic switch is connected with power supply and charge circuit, amplifier and tonequality treatment circuit, source of sound Controlled CPU, antenna controling circuit, auto audio equipment and loudspeaker respectively.

2, improved mobile telephone holding-free receiver according to claim 1, it is characterized in that: the Handless body is connected with vehicular telephone via signal wire (SW).

3, improved mobile telephone holding-free receiver according to claim 1 is characterized in that: the antenna controling circuit that the Handless main body of the different styles of confession is used is the standard external member.

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