CN109743559A - A kind of wireless audio and video play system and its Wireless projector - Google Patents
A kind of wireless audio and video play system and its Wireless projector Download PDFInfo
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- CN109743559A CN109743559A CN201910212824.8A CN201910212824A CN109743559A CN 109743559 A CN109743559 A CN 109743559A CN 201910212824 A CN201910212824 A CN 201910212824A CN 109743559 A CN109743559 A CN 109743559A
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- 230000001413 cellular effect Effects 0.000 claims description 14
- 230000005236 sound signal Effects 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The present invention discloses a kind of wireless audio and video play system and its Wireless projector, is related to audio and video playing field.It is split complex circuit, audio/video system and aiming at the problem that poor synchronization, using integrating audio/video decoding technology in Wireless projector and being amplified to the means of external radio speaker by wireless power, signal transmission full Wireless and audio-visual system integral structure are realized.It can be suitable for any large-scale or small-sized, indoor or outdoors occasions simultaneously.
Description
Technical field
The present invention relates to audio and video playing fields, and in particular to a kind of wireless audio and video play system and its wireless display
Instrument.
Background technique
System is broadcast in existing audio-video throwing, more using projector as video playing device.In enlarged place, such as sound
More people such as happy meeting, hundred people meeting-place, the huge event Room assemble place, and audio playing apparatus can be connected by sound source wire and external sound source
It connects, audio-video is two sets of synchronization systems.It has to pass through professional person and carries out audio-visual synchronization debugging, and need separately to set regulation platform
Control effect, cost is very high, complex circuit, and control technology requires very professional.
And in miniaturization place, such as home theater, small-sized movie theater, meeting room place, audio plays form there are two types of meetings,
One is such as above-mentioned two sets of synchronization system combinations of audio-video, then have the corresponding technical difficulty, such as wiring complexity.Separately
One is loudspeaker are integrated in projector.Although integrated loudspeaker route is simple, current technology level can not accomplish one
Source of sound point can realize the sound effect of loopback solid.And spectators with a distance from projector with the audio intensity that receives at
Exponential damping causes the audience's feeling of different distance widely different, is particularly unsuitable for home theater etc and wants to audio quality
Seek very high occasion.
Summary of the invention
In order to solve the above-mentioned problems of the prior art, it is an object of that present invention to provide a kind of wireless audio and videos to play system
System and its Wireless projector, to realize signal transmission full Wireless and audio-visual system integral structure.
A kind of wireless audio and video play system of the present invention, comprising: radio signal source, Wireless projector, projection screen
With more than one wireless sound box；The Wireless projector receives the audio-video signal of radio signal source, by audio-video signal
Decode synchronous audio signal and vision signal；By audio signal wireless transmission to wireless sound box, extremely by video signal projection
Projection screen；The wireless sound box receives the audio signal and broadcasting.
A kind of wireless audio and video play system of the present invention, the advantage is that, pass through Wireless projector and wireless communication
Number source, wireless sound box wireless connection realize large-scale or small-sized place be suitable for using audio and video playing scheme.Due to sound
The signal of video is isolated by Wireless projector, therefore ensure that fully synchronized property, synchronizes debugging without professional person,
For large-scale place without independently splitting audio system and video system.Small-sized place can be accomplished it is fully wireless, it is complete
Solves house wiring difficulty entirely.And the quantity of wireless sound box can be continuously increased according to the demand of use occasion, configuration side
Just flexibly.The technical difficulty of multiple source of sound points can not be configured inside set of system by solving projector, be particularly suitable for family
Movie theatre.
Preferably, the Wireless projector is equipped with wireless receiver, audio/video decoder, cellular power amplifier, number
Word optical projectors；Input terminal and radio signal source wireless connection, output end and the audio/video decoding of the wireless receiver
The input end signal of device connects；The audio output of audio/video decoder and the input terminal connection of cellular power amplifier, video
Output end is connect with the input terminal of digital light projection device；The output end and wireless sound box of cellular power amplifier are wirelessly connected.
It is designed to provide a kind of Wireless projector applied to wireless audio and video play system specific implementation.
A kind of Wireless projector is equipped with wireless receiver and digital optical projectors, is additionally provided with audio/video decoder, wireless
Power amplifier；The input terminal of the wireless receiver and external radio signal source wireless connection, output end and audio-video
The input end signal of decoder connects；The input terminal connection of the audio output and cellular power amplifier of audio/video decoder,
Video output terminals are connect with the input terminal of digital light projection device；The output end of cellular power amplifier and external wireless sound box
It is wirelessly connected.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wireless audio and video play system of the present invention.
Specific embodiment
As shown in Figure 1, a kind of wireless audio and video play system of the present invention includes being placed outside outside Wireless projector
Radio signal source, Wireless projector, projection screen and more than one wireless sound box.
The radio signal source, which can be Wifi node, intelligent terminal etc., can emit the dress of wireless audio and video signal
It sets.
The Wireless projector mainly include wireless receiver, audio/video decoder, digital light projection device and
Cellular power amplifier.The wireless receiver can pass through any nothing in the prior art such as bluetooth, wifi, CDMA, GPRS
Line means of communication carries out wireless signal with radio signal source and connect.Certainly, the communications protocol of radio signal source is inevitable and wireless
The communications protocol of receiver is corresponding, and the particular circuit configurations of wireless receiver and I/O mode are the prior art.Wirelessly
Receiver is input to audio/video decoder after receiving the audio-video signal of radio signal source.
The audio/video decoder particular circuit configurations and decoding process are the prior art, such as application No. is
Audio/video decoding chip disclosed in the patent application scheme of CN201010617929.0 etc., the present invention only improves itself and other portions
The specific connection type of part.The audio-video signal received is decoded as audio signal to the audio/video decoder and video is believed
Number, and audio signal is input to cellular power amplifier respectively, vision signal is input to digital light projection device.
The cellular power amplifier particular circuit configurations and I/O mode are the prior art, can be connect by I/O
Mouth receives the audio signal of audio/video decoder.The wireless sound box particular circuit configurations and with cellular power amplifier
Signal transmission form is also the prior art, can be real for the public technology scheme of CN201711269148.5 by number of patent application
It is existing.Wireless sound box can be projected according to video to be needed to be arranged, the arrangement quantity and specific location combination projection screen of wireless sound box
Positional relationship, the available visual/audio effects more perfect than the prior art.
The structure of the digital light projection implement body circuit and signal input interface be the prior art, can by VGA,
The interfaces such as HDMI or USB are connect with audio/video decoder, are projected by optical system to the projection screen after obtaining vision signal.
The wireless audio and video play system and its Wireless projector through the invention, can be suitable for simultaneously it is large-scale or
The different occasion of small-sized, indoor or outdoors etc., has reached that complete signal is wireless and good flexible audio-video configuration
Scheme.The audience's feeling for effectively improving any position makes the sound visual sense of all spectators feel maximum average.
For those skilled in the art, it can make other each according to the above description of the technical scheme and ideas
The corresponding change of kind and deformation, and all these changes and deformation all should belong to the protection model of the claims in the present invention
Within enclosing.
Claims (3)
1. a kind of wireless audio and video play system, comprising: radio signal source, Wireless projector, projection screen and more than one nothing
Line speaker；It is characterized in that, the Wireless projector receives the audio-video signal of radio signal source, audio-video signal is decoded
Synchronous audio signal and vision signal out；By audio signal wireless transmission to wireless sound box, by video signal projection to projection
Screen；The wireless sound box receives the audio signal and broadcasting.
2. wireless audio and video play system according to claim 1, which is characterized in that the Wireless projector is equipped with wireless
Receiver, audio/video decoder, cellular power amplifier, digital light projection device；The input terminal of the wireless receiver with
The input end signal of radio signal source wireless connection, output end and audio/video decoder connects；The audio of audio/video decoder is defeated
The input terminal of the connection of the input terminal of outlet and cellular power amplifier, video output terminals and digital light projection device connects；Wirelessly
The output end and wireless sound box of power amplifier are wirelessly connected.
3. a kind of Wireless projector is equipped with wireless receiver and digital optical projectors, which is characterized in that be additionally provided with audio-video solution
Code device, cellular power amplifier；The input terminal of the wireless receiver and external radio signal source wireless connection, output end
It is connect with the input end signal of audio/video decoder；The input of the audio output and cellular power amplifier of audio/video decoder
The input terminal of end connection, video output terminals and digital light projection device connects；The output end of cellular power amplifier and outside
Wireless sound box is wirelessly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212824.8A CN109743559A (en) | 2019-03-20 | 2019-03-20 | A kind of wireless audio and video play system and its Wireless projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212824.8A CN109743559A (en) | 2019-03-20 | 2019-03-20 | A kind of wireless audio and video play system and its Wireless projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109743559A true CN109743559A (en) | 2019-05-10 |
Family
ID=66370999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910212824.8A Pending CN109743559A (en) | 2019-03-20 | 2019-03-20 | A kind of wireless audio and video play system and its Wireless projector |
Country Status (1)
| Country | Link |
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| CN (1) | CN109743559A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080239164A1 (en) * | 2007-03-30 | 2008-10-02 | Epson America, Inc. | EZ home cinema |
| CN104717450A (en) * | 2015-04-09 | 2015-06-17 | 国家电网公司 | Integrated all-wireless transmission method and terminal for video conference system |
| CN105611260A (en) * | 2015-12-21 | 2016-05-25 | 刘莉 | Electronic system |
| CN106817549A (en) * | 2015-11-30 | 2017-06-09 | 张丽玉 | A kind of out-of-home entertainment system |
-
2019
- 2019-03-20 CN CN201910212824.8A patent/CN109743559A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080239164A1 (en) * | 2007-03-30 | 2008-10-02 | Epson America, Inc. | EZ home cinema |
| CN104717450A (en) * | 2015-04-09 | 2015-06-17 | 国家电网公司 | Integrated all-wireless transmission method and terminal for video conference system |
| CN106817549A (en) * | 2015-11-30 | 2017-06-09 | 张丽玉 | A kind of out-of-home entertainment system |
| CN105611260A (en) * | 2015-12-21 | 2016-05-25 | 刘莉 | Electronic system |
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