CN202374424U - Vehicle-mounted information system device with earphone interface - Google Patents
Vehicle-mounted information system device with earphone interface Download PDFInfo
- Publication number
- CN202374424U CN202374424U CN2011205414039U CN201120541403U CN202374424U CN 202374424 U CN202374424 U CN 202374424U CN 2011205414039 U CN2011205414039 U CN 2011205414039U CN 201120541403 U CN201120541403 U CN 201120541403U CN 202374424 U CN202374424 U CN 202374424U
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- sound source
- information system
- system device
- audio signal
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Abstract
The utility model relates to a vehicle-mounted information system device with an earphone interface, which comprises an internal sound source, a voice frequency signal processing circuit, a power amplifier connected with a loudspeaker and an external sound source interface connected with an external sound source device. The external sound source interface and the internal sound source are both connected with the input end of the voice frequency signal processing circuit, the output end of the voice frequency signal processing circuit is connected with the input end of the power amplifier. The vehicle-mounted information system device with the earphone interface can enlarge selection of a vehicle-mounted device on sound sources.
Description
Technical field
The utility model relates to vehicle electric field, particularly relates to a kind of inter-vehicle information system device with earphone interface.
Background technology
High speed development along with the on-vehicle information industry; Increasing source of sound such as CD, DVD is play on vehicle audio; Even has the equipment of Bluetooth function like smart mobile phone, panel computer etc.; The broadcast stereo music that can connect through the bluetooth with inter-vehicle information system has brought abundanter auditory perception to the user.
But existing music player (like MP3, MP4 etc.), mobile phone, MID (Mobile Internet Devices, mobile internet device), computer etc., major part does not have Bluetooth function.The sound equipment resource that this has greatly restricted onboard system has limited the demand of user to music interest.
Summary of the invention
The utility model technical problem to be solved provides a kind of inter-vehicle information system device with earphone interface, can enlarge the selectivity of car-mounted device to source of sound.
The utility model solves the technical scheme that its technical problem adopted: a kind of inter-vehicle information system device with earphone interface is provided; Comprise inner source of sound, audio signal processing circuit and the power amplifier that links to each other with loud speaker; Said power amplifier links to each other with loud speaker; Also comprise and be used for the external sound source interface that links to each other with external sound source equipment; Said external sound source interface all links to each other with the input of audio signal processing circuit with inner source of sound, and the output of said audio signal processing circuit links to each other with the input of power amplifier.
Said external sound source interface links to each other with external sound source equipment through the double end audio signal wire.
Said double end audio signal wire one end is that diameter is the headset plug of 3.5mm, and the other end is two headset plugs, and wherein, the diameter of a headset plug is 2.5mm, and the diameter of another headset plug is 3.5mm.
The external structure of said external sound source interface is an earphone jack, and internal structure is the stereo audio input circuit, and this stereo audio input circuit links to each other with the sound source signal treatment circuit.
Said inner source of sound is AM/FM broadcast receiver or SD card.
Said audio signal processing circuit adopts the dsp chip of TMS32006713 series to realize.
Said external sound source equipment is music player, MP4, mobile phone, panel computer or mobile internet device.
Beneficial effect
Owing to adopted above-mentioned technical scheme; The utility model compared with prior art has following advantage and good effect: the utility model enlarges the selectivity of car-mounted device to source of sound through the external sound source input circuit with a double end audio signal wire (it is the headset plug of 2.5mm and 3.5mm that diameter is provided) that is used to be connected various music players, mobile phone, MID, apparatus such as computer earphone.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model;
Fig. 2 is the external structure sketch map of the external sound source interface of the utility model.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
The execution mode of the utility model relates to a kind of inter-vehicle information system device with earphone interface; As shown in Figure 1; Comprise inner source of sound, audio signal processing circuit and the power amplifier that links to each other with loud speaker; Also comprise being used for the external sound source interface that links to each other with external sound source equipment, said external sound source interface all links to each other with the input of audio signal processing circuit with inner source of sound, and the output of said audio signal processing circuit links to each other with the input of power amplifier.
Wherein, the external sound source interface is used to import external sound source, links to each other with external sound source equipment through the double end audio signal wire usually.The external structure of external sound source interface is an earphone jack, and its jack structure is as shown in Figure 2, and internal structure is the stereo audio input circuit, the incoming audio signal treatment circuit.Be connected with music player, mobile phone, MID, the apparatus such as computer of outside for ease; Also designed a double end audio signal wire; This double end audio signal wire is that diameter is the headset plug of 3.5mm on one side, is used to connect the external sound source interface of inter-vehicle information system; Be two headset plugs on one side, the diameter of one of them is 2.5mm, and another headset plug is 3.5mm, and so can optionally connect diameter is 2.5mm or 3.5mm equipment earphone socket.
Audio signal processing circuit is used for switching and processing with two-way or the above audio signal of two-way.Wherein, Audio Processing comprises provides audio balance, volume control, loudness control, spectrum analysis etc.This audio signal processing circuit adopts the dsp chip of TMS32006713 series to realize.
Inner source of sound is used to export the audio signal of inter-vehicle information system.Wherein, inner source of sound can be the AM/FM broadcast receiver, also can be SD card music etc.
Power amplifier is used for the signal of audio signal processing circuit output is amplified, and finally exports the loud speaker of automobile to.
This shows that the utility model should enlarge the selectivity of car-mounted device to source of sound with a double end audio signal wire (it is the headset plug of 2.5mm and 3.5mm that diameter is provided) that is used to be connected various music players, mobile phone, MID, apparatus such as computer earphone through the external sound source input circuit.
Claims (7)
1. inter-vehicle information system device with earphone interface; Comprise inner source of sound, audio signal processing circuit and the power amplifier that links to each other with loud speaker; It is characterized in that; Also comprise being used for the external sound source interface that links to each other with external sound source equipment, said external sound source interface all links to each other with the input of audio signal processing circuit with inner source of sound, and the output of said audio signal processing circuit links to each other with the input of power amplifier.
2. the inter-vehicle information system device with earphone interface according to claim 1 is characterized in that, said external sound source interface links to each other with external sound source equipment through the double end audio signal wire.
3. the inter-vehicle information system device with earphone interface according to claim 2; It is characterized in that; Said double end audio signal wire one end is that diameter is the headset plug of 3.5mm, and the other end is two headset plugs, wherein; The diameter of a headset plug is 2.5mm, and the diameter of another headset plug is 3.5mm.
4. the inter-vehicle information system device with earphone interface according to claim 1; It is characterized in that; The external structure of said external sound source interface is an earphone jack, and internal structure is the stereo audio input circuit, and this stereo audio input circuit links to each other with the sound source signal treatment circuit.
5. the inter-vehicle information system device with earphone interface according to claim 1 is characterized in that, said inner source of sound is AM/FM broadcast receiver or SD card.
6. the inter-vehicle information system device with earphone interface according to claim 1 is characterized in that, said audio signal processing circuit adopts the dsp chip of TMS32006713 series to realize.
7. the inter-vehicle information system device with earphone interface according to claim 1 is characterized in that said external sound source equipment is music player, MP4, mobile phone, panel computer or mobile internet device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205414039U CN202374424U (en) | 2011-12-21 | 2011-12-21 | Vehicle-mounted information system device with earphone interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205414039U CN202374424U (en) | 2011-12-21 | 2011-12-21 | Vehicle-mounted information system device with earphone interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202374424U true CN202374424U (en) | 2012-08-08 |
Family
ID=46598111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205414039U Expired - Lifetime CN202374424U (en) | 2011-12-21 | 2011-12-21 | Vehicle-mounted information system device with earphone interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202374424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572632A (en) * | 2011-12-21 | 2012-07-11 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted information system device with earphone interface |
-
2011
- 2011-12-21 CN CN2011205414039U patent/CN202374424U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572632A (en) * | 2011-12-21 | 2012-07-11 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted information system device with earphone interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |