CN1881459A - Vehicular video and audio expander, and vehicular video and audio system - Google Patents
Vehicular video and audio expander, and vehicular video and audio system Download PDFInfo
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- CN1881459A CN1881459A CN 200510079551 CN200510079551A CN1881459A CN 1881459 A CN1881459 A CN 1881459A CN 200510079551 CN200510079551 CN 200510079551 CN 200510079551 A CN200510079551 A CN 200510079551A CN 1881459 A CN1881459 A CN 1881459A
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Abstract
The invention relates to a vehicle video amplifier, and a relative vehicle video system, wherein the device comprises: a video amplifying device for generating one output signal, an output device for receiving the output signal, an optical disc exchanger for generating the first input signal to the video amplifying device, a detachable media storage device for generating the media data to the video amplifying device to be processed into the second input signal, a hand-held communicator for generating the communication data to the video amplifying device to be processed into the third signal. When in the optical disc exchanger mode, the video amplifying device selects the first input signal as the output signal; when at the media play mode, the video amplifying device selects the second input signal as the output signal; and when at the communication mode, selects the third input signal as the output signal. The invention can avoid changing former hardware, to integrate the optical disc exchanger, the datable media storage device, and the hand-held communicator inside the vehicle video system.
Description
Technical field
The invention relates to automobile-used audio-visual technology, particularly relevant for a kind of automobile-used audio-visual expanding device and use its automobile-used audio-video system.
Background technology
Along with the progress of digital audio-video science and technology, offer human well-rounded audio-visual entertainment life, people just can directly influence lifestyle at home for the demand of audio-visual amusement, thereby the agitation of family's theater is arranged.Then, further extend to Vehicular mobile formula environment,, have some idea of even be equipped with by the standard of CD player LCD TV screens (LCD TV) such as CD, VCD, DVD being classified as automobile in recent years for high-quality audio-visual demand.Moreover removal formula media storage device (such as the iPod that Apple produced) is popularized with mobile phone, makes the interior user of car for the extendibility of automobile-used audio-video system strong demand be arranged.But existing automobile-used audio-video system has assembled appropriate when car dispatches from the factory, when the user has expansion demand, must make or have much ado and reequip, and the consumer is hung back thereafter.
Therefore, under the prerequisite that does not change its original main system of audio hardware, how integrated CD record changer, removal formula media storage device and hand-holding communication device are in automobile-used audio-video system, and this is the problem of the required research of industrial community personage.
Summary of the invention
Purpose of the present invention, the automobile-used audio-video system that promptly is to provide a kind of automobile-used audio-visual expanding device and uses it, under the prerequisite that does not change its original main system of audio hardware, can integrated CD record changer, removal formula media storage device and hand-holding communication device be in automobile-used audio-video system.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of automobile-used audio-video system and finish, automobile-used audio-video system according to the present invention comprises: an audio-visual expanding device, in order to produce an output signal; One output unit is in order to receive output signal; One CD record changer is input to audio-visual expanding device in order to produce one first input signal; One removal formula media storage device is input to audio-visual expanding device in order to produce a media data, and is treated as one second input signal via audio-visual expanding device; And a hand-holding communication device, be input to audio-visual expanding device in order to produce a communication data, and be treated as one the 3rd input signal via audio-visual expanding device; Wherein when under a CD player pattern, it is output signal that audio-visual expanding device is selected first input signal; When under a media playback mode, it is output signal that audio-visual expanding device is selected second input signal; When under a communication mode, it is output signal that audio-visual expanding device is selected the 3rd input signal.
In addition, the invention provides a kind of automobile-used audio-visual expanding device, be applied in the automobile-used audio-video system, automobile-used audio-video system comprises an output unit, a CD record changer, a removal formula media storage device and a hand-holding communication device; Audio-visual expanding device comprises: a selector switch, in order to receive one first input signal that CD player produced; One media management module receives the media data that removal formula media storage device is produced, and media data is converted to one second input signal is input to selector switch; One communication control module receives the communication data that hand-holding communication device produced, and communication data is converted to one the 3rd input signal is input to selector switch; And a microcontroller, the control selector switch one of is selected in first input signal, second input signal and the 3rd input signal person, and output becomes an output signal.
Effect of the present invention:
Comprehensively above-mentioned, automobile-used audio-visual expanding device of the present invention and the automobile-used audio-video system that uses it are under the prerequisite that does not change original stereophony main control system and existing CD record changer circuit, can integrated removal formula media storage device and hand-holding communication device, obtain the effect that the video-audio signal source is expanded.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the block schematic diagram that shows according to automobile-used audio-video system one embodiment of the present invention; And
Fig. 2 shows according to control flow chart of the present invention
The symbol description of main element in the accompanying drawing:
1, audio-visual expanding device; 2, CD record changer; 3, removal formula media storage device;
4, hand-holding communication device; 5, microphone; 6, display;
7, main system of audio 8, loudspeaker 9, control knob
100, selector switch 102, media management module 104, communication control module
106, microcontroller
Embodiment
Please refer to Fig. 1, Fig. 1 is the block schematic diagram according to automobile-used audio-video system one embodiment of the present invention.As shown in Figure 1, automobile-used AV device according to the present invention comprises: but an audio-visual expanding device 1, a CD record changer 2, a removal formula media storage device 3, a hand-holding communication device 4, a microphone 5, a display 6, a main system of audio 7 and a loudspeaker 8.According to automobile-used audio-visual expanding device 1 of the present invention, but be to connect CD record changer 2 removal formula media storage devices 3, hand-holding communication device 4, microphone 5, display 6 and main system of audio 7 or the like respectively, and main system of audio 7 still is connected to loudspeaker 8.
CD record changer 2 is any CD player in conjunction with DVD multidisc sheet disc changing mechanism, it can be audio player, as music CD (Compact Disc, abbreviate CD as) player, it also can be DVD player in conjunction with audio ﹠ video, as image and sound optical disk (Video Compact Disc abbreviates VCD as) player, digital image and sound optical disk (Digital Versatile Disc abbreviates DVD as) player etc.If CD record changer 2 is a DVD player,, can produce vision signal 10 and sound signal 11 to audio-visual expanding device 1 place when when playing; If CD record changer 2 only is an audio player, then can not produce vision signal 10.In addition, CD record changer 2 is the exchange of making control code via control bus 12 with audio-visual expanding device 1.
But removal formula media storage device 3 can be to include electrical or magnetic storage such as the ROM able to programme of electrically erasing (electrically erasable programmable read only memory), fast flash memory bank (flashmemory), hard disk or tape.But store digital video and/or voice data in the removal formula media storage device 3, can be sent to audio-visual expanding device 1 via data bus 13 and be for further processing.This data bus 13 can be the Interface Standard with universal serial universal serial bus structural (Universal Serial Bus, letter claims with USB), IEEE 1394, SCSI, IDE, PCMCIA, PCI etc.
Hand-holding communication device 4 can be the mobile phone of Global Link Digital Cellular System (Global System forMobile Communications:GSM) or third generation wireless communication standard system (3G), is connected by bus 14 with audio-visual expanding device 1.If hand-holding communication device 4 is blue bud (Bluetooth) mobile phone, blue bud control wafer (will be as described later in detail) can be set in audio-visual expanding device 1, then need not the setting of bus 14, between hand-holding communication device 4 and the audio-visual expanding device 1, can carry out wireless transmission by blue bud agreement.Moreover, microphone 5 can be arranged in the car, and microphone 5 is sent to audio-visual expanding device 1 with voice signal line 15 with the sound of user in the car and deals with, in view of the above, the user can further exempt the puzzlement of wearing earphone in the car.
Aforementioned display device 6, main system of audio 7 are the output units among the present invention, in order to receive described output signal.
Display 6 is in order to receiving the output video signal 16 that audio-visual expanding device 1 is produced, and vision signal 16 is shown output.This display can be cathode-ray tube TV (Cathode Ray Tube TV), LCD TV (Liquid Crystal Display TV), plasm TV (Plasma TV), light emitting diode TV (LED TV), Organic Light Emitting Diode TV (Organic LED TV) or field emission component TV (FieldEmission Display TV) or the like.
7 of main systems of audio are to include audio frequency processing circuits such as AM/FM harmony device (AM/FM Tuner), audiotape player (cassetteplayer), enlarger and partial device, except the sound signal that can handle self harmony device or audiotape player, still can receive and handle the output audio signal 17 that audio-visual expanding device 1 is produced, pass through loudspeaker 8 then voice output.Main system of audio 7 and 1 exchange of making control code via control bus 18 of audio-visual expanding device, the user can be by pushing control knob set on the main system of audio 79 in the car, control via 18 pairs of automobile-used audio-visual expanding devices 1 of control bus again, and then obtain host mode, record changer pattern, removal formula media mode or the communication mode (will be as described below) that switches automobile-used audio-video system of the present invention.
The main system of audio 1 of existing automobile-used audio-video system is directly to connect CD record changer 2, between main system of audio 7 and the CD record changer 2, is to control by control bus.Therefore, when user in the car chooses CD record changer 2 via main system of audio 7, can send enabling signal, make 2 entrys into service of CD record changer, and the sound signal 10 that is produced is sent to main system of audio 7 outputs via control bus.According to the present invention, need not change the hardware of main system of audio 7, CD record changer 2, removal formula media storage device 3, hand-holding communication device 14 etc., utilize audio-visual expanding device 1 can carry out the change action of record changer pattern, removal formula media mode or communication mode.Edge this, with regard to main system of audio 7, need not judge that output audio signal 17 is from CD record changer 2, removal formula media storage device 3 or hand-holding communication device 5, and, control via control bus 18 by between audio-visual expanding device 1 and the main system of audio 7.Moreover, can select CD record changer 2, removal formula media storage device 3 or hand-holding communication device 4 by audio-visual expanding device 1 by the demand of user in the car, video output signals 16 or audio output signal 17 are provided.
Please refer to Fig. 1 again, audio-visual expanding device 1 according to the present invention comprises: a selector switch 100, a media management module 102, a communication control module 104 and a microcontroller 106 etc.As shown in Figure 1, audio-visual expanding device 1 inputs to selector switch 100 places after CD record changer 2 receiving video signals 10 and sound signal 11, as input video-audio signal 101.Media management module 102 reads removal formula media storage device 3 receiving media datas by data bus 13, and inputs to selector switch 100 places through after the signal Processing, as input medium signal 103.For example, media management module 102 can have MP3 decoding device and digital/analog converter, and processing can be treated as simulated audio signal with digital audio-frequency data; Again, media management module 102 can have the MPEG4 demoder, digital of digital video data can be treated as the analog audio-video signal.In addition, if removal formula media storage device 3 is USB storage devices, then media management module 102 is a USB controller.
Communication control module 104 mainly is after microphone 5 receives voice signal, inputs to selector switch 100 places, as incoming traffic signal 105.If hand-holding communication device 4 is 3G mobiles, then still can receive to provide behind the video-audio data and give after communication control module 104 handles, input to selector switch 100 places, as incoming traffic signal 105.100 of selector switchs are done one to input video-audio signal 101, input medium signal 103 and incoming traffic signal 105 and are selected, become outputting video signal 16 and output audio signal 17, export display 6 and main system of audio 7 places respectively to, selector switch 100 is analog switches.
Microcontroller 106 is responsible for whole control operations of audio-visual expanding device, be connected respectively outside CD record changer 2 and the main system of audio 7 divided by control bus 12 and 18, still connect communication control module, control bus 108 connection media management modules 102 and control bus 109 and connect selector switchs 100 etc. with control bus 107.Please refer to Fig. 2, Fig. 2 is according to control flow chart of the present invention.As shown in Figure 2, after user in the car carries out model selection (step 202) via main system of audio 7, automobile-used audio-video system then of the present invention is selected according to the user, enter respectively in host mode (step 204), record changer pattern (step 206), media playback mode (step 208) or the communication mode (step 210) etc. one of the person.Certainly the user can be under the situation of automobile-used audio-video system electric power starting, by pushing control knob 9 on the main system of audio 7, with the alter operation pattern in the car.Hereinafter will host mode, record changer pattern, media playback mode and communication mode etc. be done one and describe in detail.
Host mode
Promptly to be main system of audio 7 be referred to as the audio signal output of self harmony device or audiotape player host mode to loudspeaker 8, and the function that this type genus main system of audio 7 is existing is so repeat no more.
The record changer pattern
When carrying out conversion and control at the main system of audio 7 of different labels and CD record changer 2, be to send control signal via control bus 18 by main system of audio 7, the microcontroller 106 that is sent to audio-visual expanding device 1 is converted into the control code of control CD record changer 2, is sent to CD record changer 2 via control bus 12.At this moment, CD record changer 2 meeting outputting video signal 10 and sound signals 11, be input video-audio signal 101, control selector switchs 100 via microcontroller 106 with control signal 109, select 101 outputs of input video-audio signal to become outputting video signal 16 and output audio signal 17, provide respectively and give display 6 and main system of audio 7.
Media playback mode
When under media playback mode, main system of audio 7 is sent control signal via control bus 18, the microcontroller 106 that is sent to audio-visual expanding device 1 is converted into the control code of control media management module 102, this control code is sent to media controller 102 via control bus 108, reads numerical data in the removal formula media storage device 3 by media controller 102.Be treated as input medium signal 103 through media management module 102 then, control selector switchs 100 via microcontroller 106 with control signal 109, select 103 outputs of input medium signal to become outputting video signal 16 and output audio signal 17, offer display 6 and main system of audio 7 respectively.
Communication mode
When hand-holding communication device 4 had incoming call, communication control module 104 can send signal to main system of audio 7 by microcontroller 106 via control bus 18 via control bus 107 notice microcontrollers 106.Whether want incoming call answering by user's decision in the car again, if, then send and control signal to microcontroller 106 via control bus 18, by microcontroller 106 output control signals 109 control selector switchs 100, select 105 outputs of incoming traffic signal to become audio output signal 17, promptly can converse in the Handless mode by microphone 5.If hand-holding communication device 4 can transmit or store video-audio data, then incoming traffic signal 105 can comprise the Voice ﹠ Video signal, be selected to outputting video signal 16 and output audio signal 17 through selector switch 100 this moment, is sent to display 6 and main system of audio 7 places respectively.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (15)
1. automobile-used audio-video system is characterized in that comprising:
One audio-visual expanding device is in order to produce an output signal;
One output unit is in order to receive described output signal;
One CD record changer is input to described audio-visual expanding device in order to produce one first input signal;
One removal formula media storage device is input to described audio-visual expanding device in order to produce a media data, and is treated as one second input signal via audio-visual expanding device; And
One hand-holding communication device is input to described audio-visual expanding device in order to produce a communication data, and is treated as one the 3rd input signal via audio-visual expanding device;
Wherein, when under a CD record changer pattern, it is described output signal that described audio-visual expanding device is selected described first input signal; When under a media playback mode, it is described output signal that described audio-visual expanding device is selected described second input signal; When under a communication mode, it is described output signal that described audio-visual expanding device is selected described the 3rd input signal.
2. automobile-used audio-video system as claimed in claim 1 is characterized in that described output signal, described first input signal and described second input signal are sound signal.
3. automobile-used audio-video system as claimed in claim 2 is characterized in that described output unit is a main system of audio.
4. automobile-used audio-video system as claimed in claim 1 is characterized in that described output signal, described first input signal and described second input signal are vision signal.
5. as claim 4 a used audio-video system, it is characterized in that described output unit is a display.
6. automobile-used audio-video system as claimed in claim 1 is characterized in that described audio-visual expanding device comprises:
One microcontroller;
One media management module is in order to be converted to described media data described second input signal;
One communication control module is in order to be converted to described communication data described the 3rd input signal; And
One selector switch is the control according to described microcontroller, one of selects in described first input signal, described second input signal and described the 3rd input signal person, and output becomes described output signal.
7. automobile-used audio-video system as claimed in claim 6 is characterized in that also comprising a microphone, is connected to described communication control module, in order to receive user's sound.
8. automobile-used audio-video system as claimed in claim 6 is characterized in that described selector switch is analog switch.
9. an automobile-used audio-visual expanding device is applied in the automobile-used audio-video system, it is characterized in that described automobile-used audio-video system comprises an output unit, a CD record changer, a removal formula media storage device and a hand-holding communication device; Described audio-visual expanding device comprises:
One selector switch is in order to receive one first input signal that described CD player produces;
One media management module receives the media data that described removal formula media storage device is produced, and described media data is converted to one second input signal is input to described selector switch;
One communication control module receives the communication data that described hand-holding communication device produces, and described communication data is converted to one the 3rd input signal is input to described selector switch; And
One microcontroller is controlled described selector switch and one of is selected in described first input signal, described second input signal and described the 3rd input signal person, and output becomes an output signal.
10. audio-visual expanding device as claimed in claim 9 is characterized in that described output signal, described first input signal and described second input signal are sound signal.
11. audio-visual expanding device as claimed in claim 10 is characterized in that described output unit is a main system of audio.
12. audio-visual expanding device as claimed in claim 9 is characterized in that described output signal, described first input signal and described second input signal are vision signal.
13. audio-visual expanding device as claimed in claim 12 is characterized in that described output unit is a display.
14. audio-visual expanding device as claimed in claim 9 is characterized in that also comprising a microphone, is connected to described communication control module, in order to receive user's sound.
15. audio-visual expanding device as claimed in claim 9 is characterized in that described selector switch is analog switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510079551 CN1881459A (en) | 2005-06-17 | 2005-06-17 | Vehicular video and audio expander, and vehicular video and audio system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510079551 CN1881459A (en) | 2005-06-17 | 2005-06-17 | Vehicular video and audio expander, and vehicular video and audio system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1881459A true CN1881459A (en) | 2006-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510079551 Pending CN1881459A (en) | 2005-06-17 | 2005-06-17 | Vehicular video and audio expander, and vehicular video and audio system |
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| Country | Link |
|---|---|
| CN (1) | CN1881459A (en) |
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- 2005-06-17 CN CN 200510079551 patent/CN1881459A/en active Pending
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