CN103763608A - Head-wearing audio and video device, audio and video transmission system and audio and video transmission method - Google Patents
Head-wearing audio and video device, audio and video transmission system and audio and video transmission method Download PDFInfo
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- CN103763608A CN103763608A CN201310732296.1A CN201310732296A CN103763608A CN 103763608 A CN103763608 A CN 103763608A CN 201310732296 A CN201310732296 A CN 201310732296A CN 103763608 A CN103763608 A CN 103763608A
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Abstract
The invention discloses a head-wearing audio and video device, an audio and video transmission system and an audio and video transmission method. The head-wearing audio and video device comprises a wireless transmission module, a video display module and an audio encoding and decoding module, wherein the video display module and the audio encoding and decoding module are connected with the wireless transmission module, the wireless transmission module is used for receiving a wireless signal from an audio and video source end, processing the wireless signal to obtain a video signal and an audio signal, sending the video signal to the video display module and sending the audio signal to the audio encoding and decoding module; the video display module is used for receiving and displaying the video signal from the wireless transmission module; the audio encoding and decoding module is used for receiving and outputting the audio signal from the wireless transmission module. The wireless transmission technology WiHD is utilized, high-definition audio signals and video signals can be transmitted between a host and a head-wearing cinema in a wireless mode and are not affected by the pulling resistance of cables, users can enjoy moving at will within the wireless transmission range space, and meanwhile the cost of the cables is saved.
Description
Technical field
The present invention relates to audio-video signal transmission field, particularly wear-type audio & video equipment, audio-video transmission system and audio video transmission method.
Background technology
In prior art, wear-type movie theatre product is to be all connected (Mobile High-Definition Link is called for short MHL) cable transmission high resolution audio and video signal by high definition movable video-audio with audio-video source main frame.For the consideration to factors such as MHL cable cost and attenuation losss, the limited length of MHL cable, general length only has several meters, the putting position of audio-video source main frame has just determined wear-type movie theatre user's moving range like this, user can only MHL length of cable can and scope in use, the experience of making troubles to user.And when MHL cable is connected to wear-type movie theatre product, can produce a kind of resistance that draws to user's head, also can cause user's sense of discomfort.
Summary of the invention
The invention provides wear-type audio & video equipment, audio-video transmission system and audio video transmission method, in order to solve wear-type movie theatre audio video transmission in prior art, be limited by MHL cable, the scope of application is limited and give the problem cause user's sense of discomfort.
According to an aspect of the present invention, provide a kind of wear-type audio & video equipment, this equipment comprises wireless transport module, and the video display module being connected with wireless transport module respectively and audio coding decoding module;
Wireless transport module, for receiving the wireless signal from audio frequency and video source, processes wireless signal, obtains vision signal and audio signal; Vision signal is sent to video display module, and audio signal is sent to audio coding decoding module;
Video display module, for receiving vision signal the demonstration from wireless transport module;
Audio coding decoding module, for receiving audio signal the output from wireless transport module.
In one embodiment of the invention, audio coding decoding module, also, for gathering user's acoustic information, encodes and obtains returning audio signal this acoustic information, and passback audio signal is sent to wireless transport module;
Wireless transport module, for to passback audio signal process, obtain returning wireless signal, by this passback wireless signal by wireless way for transmitting to audio frequency and video source.
In one embodiment of the invention, wireless transport module adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
According to another aspect of the present invention, provide a kind of audio-video transmission system, this system comprises audio frequency and video source and the wear-type audio & video equipment as described in one aspect of the invention, and audio frequency and video source comprises processor and source wireless transport module;
Processor, is transferred to source wireless transport module for audio-video signal being converted to high-frequency signal;
Source wireless transport module, for being converted to high-frequency signal wireless signal and sending to wear-type audio & video equipment by wireless mode.
In one embodiment of the invention, source wireless transport module, the passback wireless signal also sending by wireless mode for receiving wear-type audio & video equipment, processes this passback wireless signal, obtains returning audio signal and is passed to processor;
Processor, also for processing passback audio signal.
In one embodiment of the invention, source wireless transport module adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
According to a further aspect of the invention, provide a kind of audio video transmission method for wear-type audio & video equipment, the method comprises:
Wear-type audio & video equipment receives the wireless signal from audio frequency and video source, and wireless signal is processed, and obtains vision signal and audio signal;
Wear-type audio & video equipment shows vision signal, and output audio signal.
In one embodiment of the invention, wear-type audio & video equipment also gathers user's acoustic information, and this acoustic information is encoded and obtained returning audio signal, and passback audio signal is sent to wireless transport module;
Wear-type audio & video equipment will return audio signal by wireless way for transmitting to audio frequency and video source;
Wherein, wear-type audio & video equipment adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
According to a further aspect of the invention, provide a kind of audio video transmission method for wear-type audio & video equipment, the method comprises:
The processor of audio frequency and video source converts audio-video signal to high-frequency signal and is transferred to source wireless transport module;
The source wireless transport module of audio frequency and video source is converted to high-frequency signal wireless signal and sends to wear-type audio & video equipment.
In one embodiment of the invention, the source wireless transport module of audio frequency and video source also receives the passback wireless signal that wear-type audio & video equipment sends by wireless mode, this passback wireless signal is processed, obtained returning audio signal and be passed to processor;
The processor of audio frequency and video source, also processes passback audio signal.
Technical solution of the present invention is utilized wireless high-definition transmission technology (the Wireless High Definition of high resolution audio and video, be called for short WiHD), realize the high resolution audio and video signal of wear-type movie theatre product and audio-video source main frame can be between main frame and wear-type movie theatre wireless transmission, wear-type movie theatre is freed from the cable constraint of main frame, this scheme has not had the impact of drawing resistance of MHL cable, make user in radio transmission range space, enjoy mobile arbitrarily good experience, simultaneously, because high resolution audio and video signal does not need to transmit by physical medium the cost of yet having saved cable.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of wear-type audio & video equipment of providing of one embodiment of the invention;
Fig. 2 is the structural representation of a kind of audio-video transmission system of providing of one embodiment of the invention;
Fig. 3 is the flow chart of a kind of audio video transmission method of providing of one embodiment of the invention;
Fig. 4 is the flow chart of a kind of audio video transmission method of providing of another embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Fig. 1 is the structural representation of a kind of wear-type audio & video equipment of providing of one embodiment of the invention; , referring to Fig. 1, this wear-type audio & video equipment 100 of the present invention comprises: wireless transport module 110, and the video display module 120 being connected with wireless transport module 110 respectively and audio coding decoding module 130;
Audio coding decoding module 130, for receiving audio signal the output from wireless transport module 110.
In the present embodiment, audio & video equipment is to receive the wireless transmission video and audio signal line output of going forward side by side simultaneously, be appreciated that then vision signal that then audio signal that also can receive only as required in other embodiments of the invention wireless transmission is carried out audio frequency output by audio coding decoding module 130 or received only wireless transmission carry out video by video display module 120 and show output.
In the present embodiment, audio coding decoding module 130, also, for gathering user's acoustic information, encodes and obtains returning audio signal this acoustic information, and passback audio signal is sent to wireless transport module 110;
Being appreciated that audio coding decoding module 130 gathers users' acoustic information can be by being connected on microphone in wear-type audio & video equipment outward or other possess the audio devices of sound collection function.
In the present embodiment, wireless transport module 110 adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
WirelessHD host-host protocol WiHD (Wireless High Definition is called for short WiHD) is a wireless high-definition video host-host protocol operating in 60GHz high-frequency.This technology makes various high definition device realize wireless transmission high-definition signal as TV, VCD player, Set Top Box etc.The peak transfer rate of WiHD is 3.8Gbps, and the transmission range of this agreement support is 10m to the maximum.This agreement has some specific requirements, for example: can transmission of audio data, can transmitting video data, can transmitting extended display identification data (Extended Display Identification, be called for short EDID) information, can transmit consumer electronics and control (Consumer Electronics Control is called for short CEC) information and can transfer clock information etc.Simultaneously WiHD also has lot of advantages realizing aspect wireless transmission high resolution audio and video signal, for example: support 1080p HD video form; Adopt the transmission of real-time radio HD video, guarantee that image transmitting is without time delay; There is error elasticity and guarantee that video distortion effect is reduced to minimum degree; It is at least the distance that is equivalent to a room that the opereating specification of this technology covers.
This wear-type audio & video equipment provided by the invention inside the is integrated just wireless transport module that adopts this WiHD technology to transmit, the wireless transport module of this wear-type audio & video equipment receives the signal of wireless transmission, and this signal is processed and obtained audio-video signal and send corresponding video display module to or audio coding decoding module; Then by video display module, vision signal is shown, audio coding decoding module is exported audio signal.Like this high resolution audio and video signal can be between main frame and wear-type audio & video equipment wireless transmission, wear-type audio & video equipment is freed from the cable constraint of main frame, to user, bring joyful experience.
Fig. 2 is the structural representation of a kind of audio-video transmission system of providing of one embodiment of the invention.Referring to Fig. 2, this audio-video transmission system provided by the invention comprises audio frequency and video source 200 and wear-type audio & video equipment 100, and audio frequency and video source 200 comprises processor 220 and source wireless transport module 210;
The processor 220 of audio frequency and video source, is transferred to source wireless transport module 210 for audio-video signal being converted to high-frequency signal;
The source wireless transport module 210 of audio frequency and video source 200, for being converted to high-frequency signal wireless signal and sending to wear-type audio & video equipment 100 by wireless mode.
In the present embodiment, the source wireless transport module 210 of audio frequency and video source, the passback wireless signal also sending by wireless mode for receiving wear-type audio & video equipment 100, processes this passback wireless signal, obtains returning audio signal and is passed to processor 220;
The processor 220 of audio frequency and video source, also for processing passback audio signal.
In the present embodiment, source wireless transport module 210 adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
Referring to Fig. 2, the specific works process of this audio-video transmission system of the present invention is, the high resolution audio and video source processor 220 of audio frequency and video source 200 is transferred to high-frequency signal the wireless transport module 210 of source, and source wireless transport module 210 is converted into wireless signal and sends.The wireless transport module 110 of wear-type audio & video equipment 100 receives wireless signal and this wireless signal is converted to audio-video signal, then the audio signal obtaining is passed through to I2S bus transfer to audio coding decoding module 130 output sounds, then the rgb signal that the vision signal obtaining is converted to video display module 120 adaptations is exported this video.
Further, this audio-video transmission system of the present invention also comprises the function that the sound of wear-type audio & video equipment end is returned.The implementation procedure of this concrete function is: the audio coding decoding module 130 of wear-type audio & video equipment 100 gathers wear-type user's acoustic information and this acoustic information is encoded, and the audio signal after coding is passed through I2S bus transfer to wireless transport module 110.Then wireless transport module 110 will be received that audio signal is processed and obtain returning wireless signal, through wireless transmission method, this passback wireless signal be sent to the wireless transport module 210 of audio frequency and video source.Source wireless transport module 210, receives the passback wireless signal that wear-type audio & video equipment 100 sends by wireless mode, and this passback wireless signal is processed, and obtains returning audio signal and is passed to processor 220; Then 220 pairs of these passback Audio Signal Processing of processor feeding back accordingly.Wherein, headset equipment gather user's acoustic information can be by being connected on microphone in wear-type audio & video equipment outward or other possess the audio frequency apparatus of sound collection function.Like this, wear-type audio & video equipment end sound retransmission function just provides the exchange channels of a user and audio frequency and video source.
Another embodiment of the present invention also provides a kind of audio video transmission method for wear-type audio & video equipment.Fig. 3 is the flow chart of a kind of audio video transmission method of providing of one embodiment of the invention, and referring to Fig. 3, the method comprises:
S300: wear-type audio & video equipment receives the wireless signal from audio frequency and video source, and wireless signal is processed, and obtains vision signal and audio signal;
S310: wear-type audio & video equipment shows vision signal, and output audio signal.
In one embodiment of the invention, the method also comprises: wear-type audio & video equipment gathers user's acoustic information, and this acoustic information is encoded and obtained returning audio signal, and passback audio signal is sent to wireless transport module;
Wear-type audio & video equipment will return audio signal by wireless way for transmitting to audio frequency and video source;
Wherein, wear-type audio & video equipment adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
Another embodiment of the present invention also provides a kind of audio video transmission method for wear-type audio & video equipment.Fig. 4 is the flow chart of a kind of audio video transmission method of providing of another embodiment of the present invention, and referring to Fig. 4, the method comprises:
S400: the processor of audio frequency and video source converts audio-video signal to high-frequency signal and is transferred to source wireless transport module;
S410: the source wireless transport module of audio frequency and video source is converted to high-frequency signal wireless signal and sends to wear-type audio & video equipment.
In one embodiment of the invention, the source wireless transport module of audio frequency and video source also receives the passback wireless signal that wear-type audio & video equipment sends by wireless mode, this passback wireless signal is processed, obtained returning audio signal and be passed to processor;
The processor of audio frequency and video source, processes passback audio signal.
In sum, this wear-type audio & video equipment of the present invention can receive the WirelessHD signal of wireless transmission, and converts described wireless signal to be applicable to video display module signal and show output, and audio coding decoding module is carried out to audio frequency output.The present invention also provides a kind of a kind of audio-video transmission system based on above-mentioned wear-type audio & video equipment, and this system has also comprised processor integrated and the audio frequency and video source of source wireless transport module.This audio-video transmission system is because audio frequency and video source and wear-type audio & video equipment end have all comprised the wireless transport module of WiHD technology integrated, realized high resolution audio and video signal wireless transmission between main frame and wear-type movie theatre, there is no the impact of drawing resistance of MHL cable, make any mobile experience of the enjoyment of user in radio transmission range space, saved the cost of cable simultaneously.Based on above-mentioned wear-type audio & video equipment or audio-video transmission system, the present invention provides again the audio video transmission method for wear-type audio & video equipment.These two kinds of transmission methods are for realizing the wireless transmission of high resolution audio and video signal between wear-type audio & video equipment and source main frame.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. a wear-type audio & video equipment, is characterized in that, described equipment comprises wireless transport module, and the video display module being connected with described wireless transport module respectively and audio coding decoding module;
Described wireless transport module, for receiving the wireless signal from audio frequency and video source, processes described wireless signal, obtains vision signal and audio signal; Vision signal is sent to described video display module, and audio signal is sent to described audio coding decoding module;
Described video display module, for receiving vision signal the demonstration from described wireless transport module;
Described audio coding decoding module, for receiving audio signal the output from described wireless transport module.
2. equipment as claimed in claim 1, is characterized in that,
Described audio coding decoding module, also, for gathering user's acoustic information, encodes and obtains returning audio signal this acoustic information, and passback audio signal is sent to described wireless transport module;
Described wireless transport module, for described passback audio signal is processed, obtains returning wireless signal, by this passback wireless signal by wireless way for transmitting to audio frequency and video source.
3. equipment as claimed in claim 2, is characterized in that, described wireless transport module adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
4. an audio-video transmission system, is characterized in that, described system comprises audio frequency and video source and the wear-type audio & video equipment as described in claims 1 to 3 any one, and described audio frequency and video source comprises processor and source wireless transport module;
Described processor, is transferred to described source wireless transport module for audio-video signal being converted to high-frequency signal;
Described source wireless transport module, for being converted to described high-frequency signal wireless signal and sending to described wear-type audio & video equipment by wireless mode.
5. system as claimed in claim 4, is characterized in that,
Described source wireless transport module, the passback wireless signal also sending by wireless mode for receiving described wear-type audio & video equipment, processes this passback wireless signal, obtains returning audio signal and is passed to described processor;
Described processor, also for processing described passback audio signal.
6. system as claimed in claim 5, is characterized in that, described source wireless transport module adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
7. for an audio video transmission method for wear-type audio & video equipment, it is characterized in that, the method comprises:
Wear-type audio & video equipment receives the wireless signal from audio frequency and video source, and described wireless signal is processed, and obtains vision signal and audio signal;
Wear-type audio & video equipment shows described vision signal, and exports described audio signal.
8. method as claimed in claim 7, is characterized in that,
Wear-type audio & video equipment also gathers user's acoustic information, and this acoustic information is encoded and obtained returning audio signal, and passback audio signal is sent to described wireless transport module;
Wear-type audio & video equipment by described passback audio signal by wireless way for transmitting to audio frequency and video source;
Wherein, wear-type audio & video equipment adopts WirelessHD host-host protocol WiHD to carry out wireless transmission.
9. for an audio video transmission method for wear-type audio & video equipment, it is characterized in that, the method comprises:
The processor of audio frequency and video source converts audio-video signal to high-frequency signal and is transferred to source wireless transport module;
The source wireless transport module of audio frequency and video source is converted to described high-frequency signal wireless signal and sends to wear-type audio & video equipment.
10. method as claimed in claim 9, is characterized in that,
The source wireless transport module of described audio frequency and video source, also receives the passback wireless signal that described wear-type audio & video equipment sends by wireless mode, and this passback wireless signal is processed, and obtains returning audio signal and is passed to described processor;
The processor of described audio frequency and video source, also processes described passback audio signal.
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| CN201310732296.1A CN103763608A (en) | 2013-12-26 | 2013-12-26 | Head-wearing audio and video device, audio and video transmission system and audio and video transmission method |
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Application publication date: 20140430 |