CN2305809Y - Radio communication switching device - Google Patents
Radio communication switching device Download PDFInfo
- Publication number
- CN2305809Y CN2305809Y CN 97216947 CN97216947U CN2305809Y CN 2305809 Y CN2305809 Y CN 2305809Y CN 97216947 CN97216947 CN 97216947 CN 97216947 U CN97216947 U CN 97216947U CN 2305809 Y CN2305809 Y CN 2305809Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- mobile telephone
- input
- output
- microphone
- 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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Abstract
The utility model relates to a line connection device for a portable mobile telephone, which is provided with a switching socket, a transmitting circuit, a microphone, an amplifying circuit and a power supply, wherein input terminals of the switching socket are externally connected with the portable mobile telephone; one terminal of output terminals of the switching socket, which is connected with a signal transmitting end of the mobile telephone is connected with an input terminal of the transmitting circuit; one terminal of the output terminals of the switching socket, which is connected with a signal receiving end of the mobile telephone is connected with an output terminal of the amplifying circuit; one end of the output terminals of the switching socket, which is connected with the end of a power supply of the mobile telephone is connected with a power supply circuit; an input terminal of the amplifying circuit is connected with the microphone. A signal which is received by the mobile telephone is transmitted to a sounder in a vehicle by the utility model and is sent out, and an answer signal is input into the mobile telephone by the utility model. Thereby, a user in the vehicle can make a conversation without holding the mobile telephone by a hand.
Description
The utility model relates to a kind of circuit jockey that is used for mobile telephone.
Mobile telephone set can be regardless of indoor and outdoor migration everywhere, when answering mobile phone in the vehicle driver travels, because of the driver must help steering wheel and gear shift lever by both hands, so cause the danger in the driving easily, traffic accident takes place.
How to make the driver be able on the safety of telephone receiving and vehicle ', obtain the situation that both take into account, can make the driver not miss any important phone, can guarantee the safety of all passengers in driver and the car again, then real in demanding the direction of improvement on mobile phone uses now urgently.Existing products (as shown in Figure 1), system provides a power supply to the case that amplifies (11) with a plug (1) from automobile-used cigar lighter or elsewhere, sentencing a plug (14) from the MIC/PHONSE socket (13) of mobile phone (12) again continues and one locates with connecting line (16) to the case that amplifies (11) of microphone (15), and with the reception of mobile telephone (12) signal with transmit to such an extent that change and move to external microphone (15) and the case that amplifies (11) is located, by this to reach the purpose of hand-free phone.Yet this series products still exists many defectives and inconvenience when reality is used, for example: a power supply required with as the case that amplifies (11) structure power supply must be provided in use in addition, need to be equipped with a connecting line that adds especially (16) in addition, the bad of signal is caused with the rocking and do not have certain position of connecting line (16) in the position of microphone (15) again.In addition, garage amplifies the broadcast power of case (11) and quality definition with adversely effected under not specific road conditions.This shows that similar this type of is installed on when using also can't reach convenient operation to the user, use effects such as clear.
The purpose of this utility model is to provide a kind of wireless telecommunications adapter that is used for mobile telephone set, so that the vehicle driver is when answering mobile phone, be able to the emission of exempting from the wireless telecommunications adapter of distribution by means of one, and can receive the content that the other side gives orders or instructions from the stereo set of vehicle, avoid hand-held receiver and both hands gripping steering wheel but reach, guarantee the safety that vehicle is advanced.
The utility model comprises rack-and-panel connector, radiating circuit, microphone, amplifying circuit and power circuit, the connector body that the external mobile telephone set of the input of rack-and-panel connector (plug end) is set up, in the output of rack-and-panel connector (socket end), the input of a termination radiating circuit that is connected with the signalling output of mobile telephone set, the output of a termination amplifying circuit that is connected with the collection of letters input of mobile telephone set, a termination power circuit that is connected with the power end of mobile telephone set.The input termination microphone of amplifying circuit.Radiating circuit, amplifying circuit connect power circuit respectively.
Usually, said radiating circuit should comprise pre-amplification circuit, oscillating circuit, modulation circuit, output circuit and antenna, the input of pre-amplification circuit switches through the signalling output that patches headstock, the modulation circuit input connects the output of oscillating circuit and pre-amplification circuit respectively, the output of the input termination modulation circuit of output circuit, the output termination antenna of output circuit.
Amplifying circuit generally is made up of pre-amplification circuit and output circuit, and microphone connects the input of pre-amplification circuit, the input of the output termination output circuit of pre-amplification circuit, and the output of output circuit switches through the collection of letters input that patches headstock.
When mobile telephone set when being talked about, the electric wave of launching by radiating circuit reaches the purpose that user's hand-free mobile telephone set can receive calls via the reception and the broadcast of automobile-used stereo set.And when answering, the microphone of being located in the wireless telecommunications adapter directly receives the sound that sends from the user, and is amplified into mobile telephone set through amplifying circuit, finish communication loop, and do not need user's hand held mobile phone machine, and both convenient and safe, save more numerous and diverse equipment again.As long as the suitable transmitting power of control, then can guarantee the confidentiality of communicating by letter to be unlikely to constitute interference again to other wireless devices.
Fig. 1 is the outside drawing of existing procucts.
Fig. 2 is a use exploded view of the present utility model.
Fig. 3 is a structured flowchart of the present utility model.
Fig. 4 is embodiment circuit theory diagrams of the present utility model.
Fig. 5 is use embodiment of the present utility model state diagram.
Below implementing side will be further described the utility model in conjunction with the accompanying drawings.
As Fig. 2, shown in 3, the utility model comprises rack-and-panel connector (21), radiating circuit (22), microphone (23), amplifying circuit (24) and power circuit (25), the connector body (4) that the input of rack-and-panel connector (21) (plug end, 211) external mobile telephone sets (3) are set up.In the output of rack-and-panel connector (21) (socket end, 212), the input of a termination radiating circuit (22) that is connected with the signal output part of mobile telephone set (3); The output of a termination amplifying circuit (24) that is connected with the collection of letters input of mobile telephone set (3); A termination power circuit (25) that is connected with the power end of mobile telephone set (3).The input termination microphone (23) of amplifying circuit (24), radiating circuit (22), amplifying circuit (24) are connected with power circuit (25) respectively.
Fig. 4 provides an embodiment of the present utility model, rack-and-panel connector (21) is realized power supply in the mobile telephone set and sending and receiving signal end to be connected with the wireless telecommunications adapter, the power supply control of being formed via power IC U2 and A provides required power supply opportune moment again.Transfer the receipts words signal of input then via the vibration of the wireless signal integrated circuit U of encoding via rack-and-panel connector (21)
1Signal amplify and vibration signal is done one suitably after the modulation, launch in the mode of frequency modulation electric wave via the antenna of radiating circuit again, so that the antenna of automobile-used sound equipment is received and plays.Simultaneously, in the wireless telecommunications adapter and install a concealed microphone (MIC), and after the amplification of signal that microphone (MIC) is obtained via amplifying circuit, by the transmission of connector signal is imported in the hand held mobile phone machine, made mobile telephone be finished the function of communication smoothly.
In Fig. 4, capacitor C
2, operational amplifier A, power supply trigger delay integrated circuit U
2, triode Q forms power circuit, it comprises power control switch and power supply trigger-delay circuit.When rack-and-panel connector had the signal input, this signal is input power supply trigger delay integrated circuit U after operational amplifier A is amplified
2, drive the electronic switch that triode Q etc. forms again.If triode Q conducting, then the ground termination of the common of circuit and rack-and-panel connector is logical, for Circuits System provides required power supply; Otherwise Q ends, and the ground end of the common of circuit and rack-and-panel connector disconnects, and Circuits System is not worked, and reaches the purpose of control mains switch for this reason.
During use, as shown in Figure 5, when the user obtains incoming call in the garage way, then earlier automobile-used sound equipment (5) is switched to the channel that preestablishes, again the talk key of mobile telephone set (3) is pressed, the wireless telecommunications adapter that then is intercalated in mobile phone (3) below will move simultaneously, and the user can be in car the clear sound of hearing that partner is sent in the loudspeaker (6) of sound equipment.After the user hears the sound that the other side sends, desire to give when answering, then need not hand any verbal system, only needing direct sounding to answer gets final product, and in car the mobile phone of appropriate location (3), will be with the microphone established in the wireless telecommunications adapter of its below intercalation, directly receive sound from the user sent, and with after the amplification of this sound via the wireless telecommunications adapter, see through rack-and-panel connector again and enter mobile telephone (3), then mobile telephone set (3) can be finished a communication loop with telecommunication network route.
Hence one can see that, use when installing, only need directly the wireless telecommunications adapter to be intercalated in the rack-and-panel connector of setting up on the mobile telephone, and need be through the power line of very complicated, the distribution engineering of holding wire etc., except that the time and expense that can save this project palpus, more can exempt the destruction that interior of body is brought because of the distribution engineering, more need not be in car 708 disorderly set up earphone and microphone, and make the utility model can reach simple, conveniently with the effect of taking into account safety, and the received-signal strength of being launched in the wireless telecommunications adapter need not strong, its electric wave scope only need reach the scope that can receive in car antenna and get final product, so for holding within the electric wave transmission, outside other vehicles, can't receive, confidentiality for telecommunications can obtain good assurance, and the electric wave reception for other vehicles simultaneously also is unlikely the phenomenon that causes interference.
Below provide the reference value of components and parts among Fig. 4: integrated circuit U
1: μ C3362P, U
2: 7808, A:2904, triode Q:C1815, R
1, R
4: 10K, R
2: 1M, R
3: 15K, R
5: 33K, R
6: 10K, C
1: 104, C
2: 104, C
3: 103, C
4: 103, C
5: 105, C
6: 104, C
7: 30P, C
8: 15P, C
9: 5P, C
10: 5P, C
11: 203C, C
12: 100 μ.The frequency of crystal oscillator J can determine according to needs.
Claims (1)
1. wireless telecommunications adapter, it is characterized in that being provided with rack-and-panel connector, radiating circuit, microphone, amplifying circuit and power circuit, the connector body that the external mobile telephone set of the input of rack-and-panel connector is set up, in the output of rack-and-panel connector, the input of a termination radiating circuit that is connected with the signalling output of mobile telephone set, the output of a termination amplifying circuit that is connected with the collection of letters input of mobile telephone set, a termination power circuit that is connected with the power end of mobile telephone set; The input termination microphone of amplifying circuit; Radiating circuit, amplifying circuit connect power circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97216947 CN2305809Y (en) | 1997-05-26 | 1997-05-26 | Radio communication switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97216947 CN2305809Y (en) | 1997-05-26 | 1997-05-26 | Radio communication switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2305809Y true CN2305809Y (en) | 1999-01-27 |
Family
ID=33933697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97216947 Expired - Fee Related CN2305809Y (en) | 1997-05-26 | 1997-05-26 | Radio communication switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2305809Y (en) |
-
1997
- 1997-05-26 CN CN 97216947 patent/CN2305809Y/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 |