CN2427934Y - Non holding receiver infrared transmission device in vehicle for mobile telephone - Google Patents
Non holding receiver infrared transmission device in vehicle for mobile telephone Download PDFInfo
- Publication number
- CN2427934Y CN2427934Y CN002339900U CN00233990U CN2427934Y CN 2427934 Y CN2427934 Y CN 2427934Y CN 002339900 U CN002339900 U CN 002339900U CN 00233990 U CN00233990 U CN 00233990U CN 2427934 Y CN2427934 Y CN 2427934Y
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- Prior art keywords
- infrared
- circuit
- earphone
- mobile phone
- vehicle
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Abstract
The utility model relates to a non-holding receiver infrared transmission device for mobile phones in vehicles. The utility model comprises a non-holding receiver device which is provided with an earphone or loudspeaker switching circuit, an infrared transmitting device used for sending out mobile phone message which is carried on infrared and infrared earphones which are provided with an infrared filter amplifier and a demodulator circuit which are used for deoxidizing into voice message for the mobile phone. When the infrared earphones are inserted into the earphone or loudspeaker switching circuit for charging when not in use, and namely, the loudspeaker is used for transmitting conversation content. Once the infrared earphones are taken off, conversation message can be received by the infrared earphones through infrared transmission, and the utility model provides a public and a privacy talking modes.
Description
The utility model relates to a kind of non holding receiver infrared transmission device in vehicle of mobile phone, and espespecially a kind of infrared transmission mode of utilizing solves the radio frequency wireless transmission and easily produces the not good defective of noise, sound quality.
The popularity rate of mobile phone significantly improves along with private dealer's competition, and the epoch of unlatching whole people communication, but also be accompanied by the problem on opportunity of use, use the safety problem of mobile phone etc. such as driving, so handsfree earphone for car namely become an indispensable communication product. General handsfree earphone for car device is to utilize cigar lighter as the power supply supply, utilize a joint to be connected in mobile phone and auto-pickup, circuit in it is about to the voice signal and does to amplify processing, send by loudspeaker, and user's voice are by the acquisition of microphone, and are sent by mobile phone after doing to amplify. Do not want the message that the people knows for providing the user to listen to, generally all be provided with an earpiece holes, the user is provided the earphone receiving of pegging graft, again or two kinds of modes utilizing radio frequency (RF) wireless headset to answer, but these two kinds of modes have easy interference, use the shortcomings such as inconvenient, that confidentiality is not enough, shown in following table one, desirable not to the utmost in the use, and be necessary to do further improvement.
[table]
| The tradition wired earphone | The RF wireless headset | |
| Security | Because of the pullling of line, drop easily, overslaugh and affect driving safety during use | Because of the obstruction without wire rod, driving is difficult for diverting one's attention |
| Convenience | Wire rod hinders driving easily, and uses the change-over switch that need press handfree receiver unit, and the loudspeaker output switching to earphone, is used trouble | Only need during use earphone is hung up, use simple |
| Annoyance level | Need not launch the carrier wave signal, noiseless | The emission high frequency carrier all may produce interference to the electronic equipment in automobile instrument or its transmitting boundary, and its transmitting boundary is more wayward, penetrates outside the car easily. And receiving terminal also easily is subjected to external carrier-in-interference |
| Secret | Wired binding dialog context confidentiality is high | The emitting radio waves scope is wayward, may be received by other receiver, and confidentiality is relatively poor |
| Remarks | Launching, receive electronic installation needs many and complicated part and circuit, so need precision instrument correction and skilled high frequency technique person's operation, is difficult for volume production, and may be because of vehicle long-term vibrations and its original characteristic of temperatures involved. | |
| Total evaluation | Poor | Still can |
Therefore, the utility model main purpose provides a kind of non holding receiver infrared transmission device in vehicle of mobile phone, by utilizing the infrared transmission mode, easily produce the not good shortcoming of noise, sound quality to solve the radio frequency wireless transmission, and solve the driving of traditional wired earphone wire rod obstruction, affect the shortcoming of security.
According to aforementioned, the utility model includes: a handfree receiver unit, and have a speaker/and switch circuit, and an infrared transmitting device, in order to mobile phone message carrier wave is gone out in infrared emitting; One Infrared earphone has an infrared ray filter and amplification device and separates demodulation circuit, is reduced into the sound message of mobile phone; The time spent is not to be inserted in speaker/switching circuit to charge to this Infrared earphone, this moment is namely by loudspeaker transmission dialog context, in case Infrared earphone is taken off, the conversation message is namely received by earphone by infrared transmission, and open and two kinds of conversation modes of secret are provided.
Another purpose of the present utility model namely is that infrared ray belongs to light wave, and its carrier wave frequency is lower than 100KHz, be difficult for other electronic installation is produced interference, and its receiving terminal also is difficult for being subjected to extraneous electronic installation to disturb, this light source can reflect in the railway carriage space simultaneously, be difficult for penetrating outside the car, even penetrate and also can be covered by glass scattering, sunshine, and in the outer dark of car at night, vehicle window is just as the more difficult ejaculation of mirror, has good secret, also without the problem of launching directionality.
The utility model provides a kind of non holding receiver infrared transmission device in vehicle of mobile phone, include: a handfree receiver unit, be provided with an inner circuit in it and change the audio mail of mobile phone into the infra-red carrier signal, and be provided with the charge contact terminal; One Infrared earphone, be provided with an inner circuit in it in order to receive aforesaid infra-red carrier signal, and be reduced into sound message and broadcast out, it also is provided with the charge contact terminal, combine with aforesaid charge contact terminal and Infrared earphone is charged, and the conversation path is switched, open and two kinds of conversation modes of secret are provided.
For disclosing in detail the purpose of this utility model, feature and effect, hereby by following specific embodiment, cooperate accompanying drawing, the utility model is done one be described in detail as follows:
Fig. 1 is use view of the present utility model;
Fig. 2 is Infrared earphone structure schematic diagram of the present utility model;
Fig. 3 is the inside circuit block diagram of the utility model handfree receiver unit;
Fig. 4 is the inside circuit block diagram of the utility model Infrared earphone. The figure number explanation:
10 handfree receiver units, 11 holders
111 charge contact terminals, 12 inner circuit
121 interface circuit, 122 loudspeaker amplifying circuits
123 microphone amplifying circuits, 124 balances and decay circuit
125 modulation of infrared rays circuit, 126 infra-red carrier radiating circuits
127 speaker/are switched circuit 128 power supplys and charging circuit
13 loudspeaker, 14 outside line emitting modules
15 wires, 16 cigar lighter connecters
17 built-in microphone 20 mobile phones
30 Infrared earphones, 31 sounding positions
311 knobs, 32 charge contact terminals
33 inner circuit 331 infrared ray filter and amplification devices
332 infrared ray solution demodulation circuits, 333 earphone amplifying circuits
334 power charging circuits, 34 charging indicator lights
35 infrared rays receive bar 351 infrared ray receiving units
40 automobile cigarette lighters
As shown in Figure 1, use view for the utility model; The utility model handfree receiver unit 10 is incorporated into one with seat for mobile telephone 11, which is provided with the interface circuit 121 (as shown in Figure 3) with mobile phone 20, the both sides of this holder 11 are respectively equipped with loudspeaker 13 and the infrared emitting assembly 14 of phonation unit, and be provided with built-in microphone 17 and be extended with a wire 15, the end of this wire 15 is provided with cigar lighter connecter 16, in order to be plugged in 10 power supplies of 40 pairs of handfree receiver units of automobile cigarette lighter. This holder 11 also is provided with charge contact terminal 111 as the charging Bu Kou (as described later in detail) of Infrared earphone 30.
As shown in Figure 2, be the utility model Infrared earphone structure schematic diagram; This Infrared earphone 30 is provided with:
One sounding position 31 is to protrude from Infrared earphone 30 1 sides, listens to message in order to fill in user's earhole, can adjust it by a knob 311 and broadcast the sound size.
One charge contact terminal 32, the power path that the power supply that system provides as handfree receiver unit and inner circuit are 33, be to be inserted in aforesaid charge contact terminal 111 to charge during without Infrared earphone 30, and can be shown by a charging indicator light 34 situation of charging.
One infrared ray receives bar 35, is the below of being located at Infrared earphone 30, is provided with infrared ray receiving unit 351 in it, the infra-red carrier that transmits in order to receive handfree receiver unit 10.
As shown in Figure 3, be the circuit block diagram of the utility model handfree receiver unit; The inside circuit 12 of this handfree receiver unit 10 includes:
One interface circuit 121 is for binding mobile phone 20, amplifies in order to capture caller message to loudspeaker amplifying circuit 122, and the message of microphone amplifying circuit 123 is sent to mobile phone 20, and microphone amplifying circuit 123 is connected to built-in microphone 17 simultaneously.
One balance and decay circuit 124 are the gain amplifier of control loudspeaker amplifying circuit 122 and microphone amplifying circuit 123, and avoiding producing echo affects communication quality.
One modulation of infrared rays circuit 125 is the voice signal modulation with mobile phone 20, and after infra-red carrier radiating circuit 126 carries out carrier wave, is launched by infrared emitting assembly 14.
One speaker/is switched circuit 127, is to judge whether Infrared earphone 30 has and 111 combinations of charge contact terminal, to switch the broadcasting path via Infrared earphone 30 or loudspeaker 13. For example, if Infrared earphone 30 is incorporated into the charge contact terminal 111 of handfree receiver unit 10, charge then by the broadcasting device of loudspeaker 13 as audio mail, and to Infrared earphone 30. If Infrared earphone 30 is not incorporated into the charge contact terminal 111 of handfree receiver unit 10, then speaker/switching circuit 127 will be closed loudspeaker 13, and activation (ENABLE) modulation of infrared rays circuit 125 and infra-red carrier radiating circuit 126, make audio mail receive signal through Infrared earphone 30.
One power supply and charging circuit 128 are that the electric power that aforementioned cigarette lighter plug 16 is drawn from automobile cigarette lighter 40 is done suitable adjustment to aforementioned each member power supply, and are connected in charge contact terminal 111 charging voltage is drawn.
As shown in Figure 4, be the circuit block diagram of the utility model Infrared earphone; The inside circuit 33 of this Infrared earphone 30 includes:
One infrared ray filter and amplification device 331 is that the infra-red carrier that infrared ray receiving unit 351 is received filters and amplifying signal;
One infrared ray solution demodulation circuit 332 is with the signal rectification behind the filter and amplification, is reduced to original sound message, is sent to sounding position 31 after earphone amplifying circuit 333 amplifies.
One power charging circuit 334, be with the charge contact terminal 111 through combining, 32 charging voltage to built-in rechargeable battery (drawing among the figure) charging, and be provided with a charging indicator light 34 and make charged state and show. For example, when this charging indicator light 34 was bright, 111,32 contacts of expression charge contact terminal were good, and charge.
The utility model determines the broadcasting path of message in use depending on using Infrared earphone 30. When not using Infrared earphone 30, and be placed in holder 11 two charge contact terminals 111,32 are contacted, the sound message of incoming call will be broadcast by loudspeaker 13, and Infrared earphone 30 is charged. When making two charge contact terminals 111,32, separates the Infrared earphone 30 of taking, the sound message of incoming call will transfer to automatically by Infrared earphone 30 to be broadcast, not only dialog context is maintained secrecy, and do not need more can safeguard the security of driving as commonly using handfree receiver unit with manual switching. And the infrared transmission that the utility model adopts belongs to light wave, and its carrier wave frequency is lower than 100KHz, be difficult for other electronic installation is produced interference, its receiving terminal also is difficult for being subjected to extraneous electronic installation to disturb, and this light source can reflect in the railway carriage space simultaneously, is difficult for penetrating outside the car, also can be covered by glass scattering, sunshine even penetrate, and dark outside the night car, vehicle window has good secret just as the more difficult ejaculation of mirror.
In sum, the non holding receiver infrared transmission device in vehicle of mobile phone provided by the utility model not only has practical effect, and is new design not seen before, has significant progressive.
Below the utility model has been done an in detail explanation, more than only be better embodiment of the present utility model, can not limit the scope of the utility model enforcement. All equalizations of doing according to the utility model application range change and modify, and all belong to claim of the present utility model.
Claims (9)
1. the non holding receiver infrared transmission device in vehicle of a mobile phone is characterized in that including:
One handfree receiver unit is provided with an inner circuit and changes the audio mail of mobile phone into the infra-red carrier signal, and is provided with the charge contact terminal in it;
One Infrared earphone, be provided with an inner circuit in it in order to receiving aforesaid infra-red carrier signal, and be reduced into sound message and broadcast out, it also is provided with the charge contact terminal, combine with aforesaid charge contact terminal and Infrared earphone is charged, and the conversation path is switched.
2. the non holding receiver infrared transmission device in vehicle of mobile phone as claimed in claim 1, it is characterized in that this handfree receiver unit is provided with seat for mobile telephone, it is extended with a wire, the end of this wire is provided with cigar lighter connecter, in order to be plugged in automobile cigarette lighter handfree receiver unit is powered.
3. the non holding receiver infrared transmission device in vehicle of mobile phone as claimed in claim 1 is characterized in that this handfree receiver unit is provided with seat for mobile telephone, and it is provided with a built-in microphone.
4. the non holding receiver infrared transmission device in vehicle of mobile phone as claimed in claim 1 is characterized in that the inside circuit of this handfree receiver unit includes:
One interface circuit is for linking mobile phone, amplifying in order to capture caller message to loudspeaker amplifying circuit, and the message of microphone amplifying circuit is sent to mobile phone;
One balance and decay circuit are the gain amplifier of control loudspeaker amplifying circuit and microphone amplifying circuit;
One modulation of infrared rays circuit is the voice signal modulation with mobile phone, and after the infra-red carrier transmitter carries out carrier wave, is launched by the infrared emitting assembly;
One speaker/is switched circuit, is to judge whether Infrared earphone has with the charge contact terminal to be combined, with the broadcasting path of switching via Infrared earphone or loudspeaker.
One power supply and charging circuit are that aforementioned each member power supply is provided, and the charging voltage of charge contact terminal.
5. the non holding receiver infrared transmission device in vehicle of mobile phone as claimed in claim 4 is characterized in that these loudspeaker and infrared emitting assembly system is located at respectively the both sides of holder.
6. the non holding receiver infrared transmission device in vehicle of mobile phone as claimed in claim 4, it is characterized in that this Infrared earphone is incorporated into the charge contact terminal of handfree receiver unit, system is with the broadcasting device of loudspeaker as audio mail, and Infrared earphone is charged.
7. the non holding receiver infrared transmission device in vehicle of mobile phone as claimed in claim 4, it is characterized in that this Infrared earphone is not incorporated into the charge contact terminal of handfree receiver unit, aforesaid speaker/is switched circuit will close loudspeaker, and activation modulation of infrared rays circuit and infra-red carrier radiating circuit, make audio mail receive signal through Infrared earphone.
8. the non holding receiver infrared transmission device in vehicle of mobile phone as claimed in claim 1 is characterized in that this Infrared earphone also includes:
One sounding position is to protrude from earphone one side, listens to message in order to fill in user's earhole, can adjust it by a knob and broadcast the sound size;
One charging indicator light is the state that shows charging and the combination of charge contact terminal;
One infrared ray receives bar, is provided with the infrared ray receiving unit in it, is the below of being located at earphone, the infra-red carrier that transmits in order to receive Handless.
9. the non holding receiver infrared transmission device in vehicle of mobile phone as claimed in claim 1 is characterized in that the inside circuit of this Infrared earphone includes:
One infrared ray filter and amplification device is that the infra-red carrier that the infrared ray receiving unit is received filters and amplifying signal;
One infrared ray solution demodulation circuit is with the signal rectification after the amplification filtering, is reduced to original sound message, sends out after the earphone amplifying circuit amplifies;
One power charging circuit is that the charging voltage of the charge contact terminal through combining is charged to Infrared earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN002339900U CN2427934Y (en) | 2000-05-10 | 2000-05-10 | Non holding receiver infrared transmission device in vehicle for mobile telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN002339900U CN2427934Y (en) | 2000-05-10 | 2000-05-10 | Non holding receiver infrared transmission device in vehicle for mobile telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2427934Y true CN2427934Y (en) | 2001-04-25 |
Family
ID=33596200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN002339900U Expired - Fee Related CN2427934Y (en) | 2000-05-10 | 2000-05-10 | Non holding receiver infrared transmission device in vehicle for mobile telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2427934Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401986A (en) * | 2013-07-26 | 2013-11-20 | 福建慧翰微电子有限公司 | Implementation method and wireless headset system for enhancing vehicle communication privacy |
| CN104602367A (en) * | 2014-12-19 | 2015-05-06 | 龙凤娇 | Vehicle earphone radio frequency wireless system |
| CN110012179A (en) * | 2017-12-28 | 2019-07-12 | 仁宝电脑工业股份有限公司 | The operating method of electronic system |
-
2000
- 2000-05-10 CN CN002339900U patent/CN2427934Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401986A (en) * | 2013-07-26 | 2013-11-20 | 福建慧翰微电子有限公司 | Implementation method and wireless headset system for enhancing vehicle communication privacy |
| CN104602367A (en) * | 2014-12-19 | 2015-05-06 | 龙凤娇 | Vehicle earphone radio frequency wireless system |
| CN110012179A (en) * | 2017-12-28 | 2019-07-12 | 仁宝电脑工业股份有限公司 | The operating method of electronic system |
| US10782745B2 (en) | 2017-12-28 | 2020-09-22 | Compal Electronics, Inc. | Call receiving operation method of electronic system |
| CN110012179B (en) * | 2017-12-28 | 2021-06-01 | 仁宝电脑工业股份有限公司 | Method for operating an electronic system |
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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 |