CN2643583Y - Vehicular hand-free apparatus for handset - Google Patents
Vehicular hand-free apparatus for handset Download PDFInfo
- Publication number
- CN2643583Y CN2643583Y CNU032742592U CN03274259U CN2643583Y CN 2643583 Y CN2643583 Y CN 2643583Y CN U032742592 U CNU032742592 U CN U032742592U CN 03274259 U CN03274259 U CN 03274259U CN 2643583 Y CN2643583 Y CN 2643583Y
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- CN
- China
- Prior art keywords
- circuit
- mobile phone
- free apparatus
- control circuit
- main frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A mobile phone hands-free car kit of the utility model comprises a pedestal and a host connected with the pedestal, and the host consists of a shell and a circuit board positioned inside the shell and having a control circuit, while the shell includes a mobile phone bracket for placing a mobile phone and a panel connected with the bracket, with the panel equipped with a mute switch, and the control circuit comprises a signal processing circuit, a volume regulating circuit, an anti-jamming circuit and a power amplifying circuit in electrical connection in turn, with the power amplifying circuit electrically connected with a speaker. Besides, the control circuit comprises a signal receiving circuit for receiving the voice signals of the driver and an anechoic circuit in electrical connection with the signal receiving circuit, with a switching circuit arranged between the anechoic circuit and the signal receiving circuit. By means of setting the switching circuit, drivers can turn off the whole control circuit by cutting the switching circuit when drivers do not want the other party to hear the confidential contents, and thereby the other party can not hear these confidential contents.
Description
[technical field]
The utility model is the hands-free device about a kind of mobile phone, especially a kind of in-vehicle hand-free apparatus for mobile phone that applies on the vehicles.
[background technology]
Existing in-vehicle hand-free apparatus for mobile phone is installed on the vehicle, is used to realize the hand-free call of mobile phone, and it generally is installed on the instrument desk in driver dead ahead.Should existing in-vehicle hand-free apparatus for mobile phone comprise base and be movably installed in main frame on this base that this main frame comprises the wiring board of loudspeaker and tool control circuit.Mobile phone is to be installed on the handset mounting of main frame, and by the mobile phone connecting line handset earphone socket and main frame is coupled together.When receiving the other side's mobile phone signal, the process control circuit is handled amplification to this mobile phone signal and is played back by loudspeaker, then the driver can hear the other side's the content of speaking by these loudspeaker, and can oneself content in a minute be sent to the other side by microphone and with the signal receiving circuit of its electric connection.Yet, in communication process, if relate to the content of secret, when negotiating a price as the other side of this driver and mobile phone communication, when this driver need discuss price with other people, it was reluctant to allow the conversation content of this agreed-upon price allow the other side hear by this hands-free device, in the time of can not closing this hands-free device again, because hands-free device does not have corresponding treatment circuit, then inevitably this content propagation can be gone out.
[utility model content]
The purpose of this utility model is to provide a kind of in-vehicle hand-free apparatus for mobile phone with mute function.
The purpose of this utility model is achieved in that this in-vehicle hand-free apparatus for mobile phone comprises the main frame with loudspeaker and is arranged at the circuit board of tool control circuit in the main frame, these loudspeaker and this control circuit electrically connect, this control circuit comprises signal processing circuit and signal receiving circuit, is provided with switching circuit after the signal receiving circuit.
This control circuit also comprises the talk-back circuit that disappears, this disappear talk-back circuit and signal receiving circuit electric connection.Switching circuit is arranged at and disappears between talk-back circuit and the signal receiving circuit; Switching circuit also can be arranged at behind the talk-back circuit that disappears and with its electric connection.
Compared with the prior art; the utlity model has following advantage: the setting by this switching circuit has realized mute function; thereby when dialog context relates to secret; pressing silence switch disconnects switching circuit; from but the The whole control circuit disconnect; then voice signal can't transfer out, and then reaches the purpose of protection secret.
[description of drawings]
Fig. 1 is the stereogram of the utility model in-vehicle hand-free apparatus for mobile phone.
Fig. 2 is the electronic circuit block diagram of the utility model in-vehicle hand-free apparatus for mobile phone.
[embodiment]
Please in conjunction with consulting Fig. 1 and Fig. 2, the utility model mobile phone on-vehicle hands-free device comprises base 1 and has the main frame of loudspeaker, these loudspeaker are to be arranged at the surface of main frame near base 1, base 1 glue is connected on the instrument desk of vehicle, host activities is installed on this base 1, and it comprises housing 2 and is arranged at the interior circuit board with control circuit (not shown) of housing.Housing 2 comprise handset mounting 21 and with the panel 22 that is connected in the one side, be equiped with magnetisable material in this handset mounting 21, by a magnetic iron plate being pasted on mobile phone behind, and utilize magnetic that mobile phone is positioned on this handset mounting 21.Handset mounting 21 sidewalls offer earphone output socket, power supply input socket 211 and charging output socket 212, and these sockets electrically connect with circuit board, the earphone grafting of earphone output socket and mobile phone and avoid the passenger to hear dialog context with words person; Power supply input socket 211 is pegged graft with power line, to provide power supply to this hands-free device; Charging output socket 212 is pegged graft with charging wire, and this charging wire other end and cell-phone charging mouth are pegged graft, to realize giving the function of cell-phone charging.The mobile phone connecting line 213 that these handset mounting 21 sidewalls also are provided with the speaker/earpiece change over switch, are connected with the receiver J-Horner of mobile phone, and microphone 214, this speaker/earpiece change over switch is in order to change in earphone conversation and loudspeaker call office, this microphone 214 is to be connected on the handset mounting 21 by a telescopic arm 215, this telescopic arm 215 can extend and shorten for elastic material, and the distance that can regulate microphone 214 and loudspeaker, thereby play certain anti-interference effect and the sound avoiding uttering long and high-pitched sounds imports in the microphone 214.Panel 22 is provided with hands-free/battery charging switch 221, this hands-free/battery charging switch 221 electrically connects with circuit board, to change between hands-free and charge function.The control circuit and the course of work of this in-vehicle hand-free apparatus for mobile phone are as follows: after receiving the mobile phone voice signal of partner by the telecommunications network transmission, by signal processing circuit signal is handled, signal after the processing passes through volume control circuit, anti-jamming circuit and power amplifier, and will remove interference signal and the signal after amplifying is input to loudspeaker, and play back by loudspeaker, the sound part that these loudspeaker play back is received by signal receiving circuit, driver's voice is by the signal receiving circuit of microphone 214 and above-mentioned and its electric connection, by the talk-back circuit that disappears, the voice signal after the echo that again this disappeared is transferred on the other side's the mobile phone by telecommunications network then.The housing 2 of above-mentioned main frame and control circuit are prior art, and its structure and function do not repeat them here.
The characteristics of the utility model in-vehicle hand-free apparatus for mobile phone are to be provided with switching circuit 3 after the signal receiving circuit of control circuit, this switching circuit is a switch in the present embodiment, this switch can be arranged on signal receiving circuit and disappear between the talk-back circuit, also can be arranged on after the talk-back circuit that disappears, also be provided with the silence switch 222 that electrically connects with this switching circuit 3 on the corresponding host panel 22, this silence switch 222 can be conversation/silence switch certainly.When this switch opens, the The whole control circuit disconnects, and then the mobile phone of partner does not receive voice signal, then can normally receive when switch closure.Can also be provided with volume frequency spectrum display device 223 on the panel 22 of this hands-free device, itself and circuit board electrically connect, in order to show the power of voice signal.
Setting by this switching circuit has realized mute function; thereby when dialog context relates to secret, press silence switch switching circuit disconnected, from but the The whole control circuit disconnect; then voice signal can't transfer out, and then reaches the purpose of protection secret.
Claims (10)
1. in-vehicle hand-free apparatus for mobile phone, comprise main frame and be arranged at the circuit board of rld control circuit in the main frame with loudspeaker, these loudspeaker and this control circuit electrically connect, this control circuit comprises signal processing circuit and signal receiving circuit, it is characterized in that: be provided with switching circuit after the signal receiving circuit.
2. in-vehicle hand-free apparatus for mobile phone as claimed in claim 1 is characterized in that: this control circuit also comprises the talk-back circuit that disappears, this disappear talk-back circuit and signal receiving circuit electric connection.
3. in-vehicle hand-free apparatus for mobile phone as claimed in claim 2 is characterized in that: switching circuit is arranged at and disappears between talk-back circuit and the signal receiving circuit.
4. in-vehicle hand-free apparatus for mobile phone as claimed in claim 2 is characterized in that: switching circuit be arranged at behind the talk-back circuit that disappears and with its electric connection.
5. as any described vehicle carried mobile phone hands-free device of claim 1-4, it is characterized in that: this control circuit also comprises power amplifier, and this power amplifier is arranged between loudspeaker and the signal processing circuit, and this power amplifier and loudspeaker electric connection.
6. in-vehicle hand-free apparatus for mobile phone as claimed in claim 5 is characterized in that: be provided with anti-jamming circuit between power amplifier and signal processing circuit.
7. in-vehicle hand-free apparatus for mobile phone as claimed in claim 1 is characterized in that: main frame also comprises handset mounting.
8. in-vehicle hand-free apparatus for mobile phone as claimed in claim 1 is characterized in that: main frame also is provided with panel, and this panel is provided with silence switch, and this silence switch and switching circuit electrically connect.
9. in-vehicle hand-free apparatus for mobile phone as claimed in claim 8 is characterized in that: also be connected with microphone on the main frame, this microphone is connected with main frame by telescopic arm.
10. as claim 1 or 8 or 9 described in-vehicle hand-free apparatus for mobile phone, it is characterized in that: main frame is provided with the volume frequency spectrum display device, and this device electrically connects with circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032742592U CN2643583Y (en) | 2003-09-06 | 2003-09-06 | Vehicular hand-free apparatus for handset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032742592U CN2643583Y (en) | 2003-09-06 | 2003-09-06 | Vehicular hand-free apparatus for handset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643583Y true CN2643583Y (en) | 2004-09-22 |
Family
ID=34301884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032742592U Expired - Fee Related CN2643583Y (en) | 2003-09-06 | 2003-09-06 | Vehicular hand-free apparatus for handset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643583Y (en) |
-
2003
- 2003-09-06 CN CNU032742592U patent/CN2643583Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |