CN106162004A - A kind of nothing using WHDI to realize postpones wireless audio and video receptor and its implementation - Google Patents

A kind of nothing using WHDI to realize postpones wireless audio and video receptor and its implementation Download PDF

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Publication number
CN106162004A
CN106162004A CN201510203925.0A CN201510203925A CN106162004A CN 106162004 A CN106162004 A CN 106162004A CN 201510203925 A CN201510203925 A CN 201510203925A CN 106162004 A CN106162004 A CN 106162004A
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CN
China
Prior art keywords
receptor
video
whdi
audio
wifi signal
Prior art date
Application number
CN201510203925.0A
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Chinese (zh)
Inventor
童水光
李飞
李光辉
肖人源
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浙江大学自贡创新中心
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Application filed by 浙江大学自贡创新中心 filed Critical 浙江大学自贡创新中心
Priority to CN201510203925.0A priority Critical patent/CN106162004A/en
Publication of CN106162004A publication Critical patent/CN106162004A/en

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Abstract

The present invention relates to audio/video receiver technical field, the invention discloses a kind of nothing using WHDI to realize and postpone wireless audio and video receptor and its implementation, it specifically includes WIFI signal processor, WHDI receptor and HDMI and USB interface, described WHDI receptor connects HDMI, and described WIFI signal processor connects USB interface.WIFI signal processor and WHDI receptor are set the most simultaneously so that can realize the bidirectional data communication of WIFI signal, moreover it is possible to realize the transmission of undelayed audio, video data, be very easy to the use of user.Internal battery can carry out wired charging and power supply by interface, also can wirelessly be charged.When using wireless charging, it is only necessary to connect a HDMI wire for transmitting signal with display device, eliminate supply lines, simplify the mode of connection, reduce the volume that receptor is overall.Simultaneously also can the peripheral hardware such as external printer by Peripheral Interface.The receptor of the present invention coordinates the main frame with wireless audio-video transmission function to use, and facilitates carrying and using of user.

Description

A kind of nothing using WHDI to realize postpones wireless audio and video receptor and its implementation
Technical field
The present invention relates to wireless audio and video receptor technical field, particularly relate to a kind of nothing using WHDI to realize and postpone wireless audio and video receptor and its implementation.
Background technology
Wireless audio and video receptor of the prior art mainly includes following two: one is wireless audio and video receptor based on WiFi technology, its based on traditional WiFi technology (802.11a b g n or 802.11ac), another is wireless audio and video receptor based on WHDI technology.
WIFI is a kind of technology terminal wirelessly interconnected, and it is a high frequency radio signal, its objective is to improve the intercommunity between Wi-Fi product based on IEEE 802.11 standard.The first wireless audio and video receptor based on WiFi technology is relatively low due to bandwidth (message transmission rate), delay when transmitting audio, video data is bigger, to such an extent as to postpone to be typically larger than 1 second so that Consumer's Experience is the best, it is impossible to carry out the application higher to postponing requirement such as game.
WHDI(Wireless Home Digital Interface, i.e. wireless family digital interface) set the new standard that a wireless high definition video connects.It providing a high-quality, without the radio connection of compression, it is capable of the transfer rate of up to 3Gbps.The second wireless audio and video based on WHDI technology receptor is custom-designed for audio video transmission, the structure of its chip internal limits it can only transmit audio/video flow, general data can not be transmitted, such as word file, PPT document, the picture etc. of various form, when receptor need receive be these non-audio/video flows time, cannot receive, it is difficult to meet the needs of user.Simultaneously as the regulation of WHDI standard, its audio/video flow can only one-way transmission, WHDI technology cannot be met when user needs bidirectional data transfers and cannot meet the needs of user.Simultaneously, existing wireless audio and video receptor based on WHDI technology needs external at least both threads (be used for powering, export (hdmi) for audio frequency and video), the volume causing the wireless audio and video receptor of entirety is relatively big, limits the scope of use, is not easy to user and carries with.
Summary of the invention
Postpone long for wireless audio and video receptor of the prior art, and cannot the technical problem of bi-directional transfer of data, the invention discloses a kind of use that WHDI realizes without delay wireless audio and video receptor and its implementation.
The goal of the invention of the present invention is realized by following technical proposals:
A kind of nothing using WHDI to realize postpones wireless audio and video receptor, and it specifically includes WIFI signal processor, WHDI receptor and HDMI and USB interface, and described WHDI receptor connects HDMI, and described WIFI signal processor connects USB interface;Described WIFI signal processor is used for carrying out two-way data transmission between the WIFI signal process on external host, and described WHDI receptor receives the audio/video flow that the WHDI transmitter on external host sends;Described WHDI transmitter and WHDI receptor are used for transmitting audio/video flow, and described WIFI signal processes other data for the non-audio/video flow of transmitted in both directions.WIFI signal processor and WHDI receptor are set the most simultaneously so that can realize the bidirectional data communication of WIFI, moreover it is possible to realize the transmission of undelayed audio, video data, be very easy to the use of user.
Further, above-mentioned nothing postpones wireless audio and video receptor and also includes internal battery and charging circuit, and described internal battery connects charging circuit, and described internal battery connects WIFI signal processor and WHDI receptor.Use internal battery, power just can to after charging WIFI signal processor and WHDI receptor, it is possible to reduce the wiring of supply lines, convenient use.
Further, above-mentioned charging circuit is wireless charging circuit.The mode using wireless charging is charged, and reduces wiring, convenient use.
Further, above-mentioned nothing postpones wireless audio and video receptor and also includes wired charging circuit and wired power supply circuits, described wired charging circuit charges to internal battery by connecting external power source, and described wired power supply circuits are powered to WIFI signal processor and WHDI receptor by connecting external power source.Retain wired charging and the interface of power supply and circuit, compatible for wired charging and the mode powered simultaneously, user-friendly.
Further, above-mentioned nothing postpones wireless audio and video receptor and also includes built-in external memory, and described built-in external memory connects WIFI signal processor.Realize the wireless nas(network storage) function.
Further, the above-mentioned expansion interface also including external equipment without postponing wireless audio and video receptor, the expansion interface of described external equipment is connected with WIFI signal processor signal.The expansion interface of external equipment can connect the peripheral hardwares such as external printer.
Further, above-mentioned without postponing to communicate between wireless audio and video receptor and the main frame with wireless audio-video transmission function.As long as have the main frame of wireless audio-video transmission function, it becomes possible to and communicate between the nothing delay wireless audio and video receptor of the present invention.
Further, above-mentioned nothing postpones wireless audio and video receptor and also includes router, and described router connects internal battery.Without postponing double in wireless audio and video receptor to be provided with router chip so that be provided simultaneously with the function of router, facilitated main frame to surf the Net.
Further, above-mentioned nothing delay wireless audio and video receptor also includes that audio output interface, described audio output interface are connected with WIFI signal processor, WHDI receptor signal.Described audio output interface can connect earphone, is user-friendly to.
The invention also discloses and a kind of use the implementation method without postponing wireless audio and video receptor that WHDI realizes, it specifically includes below step: the data interactive mode judging between main frame and receptor and the data type transmitted;When judged result is main frame send audio/video flow to receptor time, use WHDI signal to be transmitted, i.e. WHDI sender unit on main frame and the WHDI signal receiver on receptor carries out unidirectional audio/video flow transmission;When judged result is main frame send non-audio/video flow to receptor time, use WIFI signal to be transmitted, i.e. WIFI signal processor on main frame carries out data transmission with the WIFI signal processor on receptor;When judged result is receptor send data to main frame time, use WIFI signal to be transmitted, i.e. WIFI signal processor on main frame carries out data transmission with the WIFI signal processor on receptor;Described receptor is connected by holding wire with external display device.
By using above technical scheme, the invention has the beneficial effects as follows: both can carry out undelayed wireless audio and video reception, it is also possible to carry out bidirectional data transfers with the main frame with wireless audio-video transmission function.Internal battery, therefore has only to connect a hdmi line with display device, is used for transmitting signal, simplifies wiring, reduces overall volume.Qi wireless charging technology, can realize wireless charging.Also can the peripheral hardware such as external printer by interface.
Accompanying drawing explanation
Fig. 1 is the structure chart carrying out radio communication without postponing wireless audio and video receptor and external host of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, the present invention is described in more detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The structure chart carrying out radio communication without postponing wireless audio and video receptor and external host of the present invention as shown in Figure 1.The present invention can have the equipment of radio communication function with outside and carries out radio communication without postponing wireless audio and video receptor, such as and have between the main frame of WIFI signal processor and WHDI emitter and communicate, the external host being in communication with can be the main frame of mouse profile, it can also be the main frame of other wireless audio-video transmission functions, two-way data communication is carried out between WIFI signal processor on main frame and the WIFI signal processor on receptor, WHDI emitter on main frame and the WHDI receptor on receptor carry out unidirectional undelayed audio, video data transmission.To communicate with principle of the prior art and the process of realization with WHDI be consistent in its single WIFI communication, and it is not belonging to the content of emphasis of the present invention, is not described in detail it at this and realizes process and principle.
The present invention specifically includes WIFI signal processor, WHDI receptor and HDMI and USB interface without delay wireless audio and video receptor, and described WHDI receptor connects HDMI, and described WIFI signal processor connects USB interface;Described WIFI signal processor is used for carrying out two-way data transmission between the WIFI signal process on external host, and described WHDI receptor receives the audio/video flow that the WHDI transmitter on external host sends;Described WHDI transmitter and WHDI receptor are used for transmitting audio/video flow, and described WIFI signal processes other data for the non-audio/video flow of transmitted in both directions.WIFI signal processor is for carrying out two-way data communication with the WIFI signal processor on external host, realization can be with the data outside the non-audio and video data streams of transmitted in both directions, such as PPT document, word file etc., WHDI receptor receives the WHDI audio and video data streams that the WHDI emitter on external host is launched, and this WHDI audio and video data streams is shown on display is arranged by HDMI, it is achieved undelayed audio, video data transmits.The audio, video data or other the non-audio, video data that receive external host without postponing wireless audio and video receptor by the way of WIFI or WHDI of the present invention, thus show the most easily, when user needs to go on business, have only to carry main frame and receptor, and arbitrarily select a display device to show in destination, it is very easy to the use of user.
The built-in embodiment of rechargeable battery, the present invention specifically includes WIFI signal processor, WHDI receptor, internal battery, wireless charging circuit and HDMI and USB interface without delay wireless audio and video receptor, described internal battery connects WIFI signal processor and WHDI receptor, described wireless charging circuit connects internal battery, described WHDI receptor connects HDMI, and described WIFI signal processor connects USB interface.Internal battery is charged by wireless charging circuit, and internal battery, for powering to WIFI signal processor and WHDI receptor, eliminates the wiring of externally fed, reduces the whole overall volume without postponing wireless audio and video receptor.WHDI receptor is received audio, video data and is shown over the display by HDMI; WHDI technology is to be developed according to the WHDI 1.0/2.0 standard that WHDI association announces by chip business AMIMON company of Israel to form; use the 40MHz frequency range in the free frequency range of 5GHz; can support that high frequency range digital content protects (HDCP) 2.0 standard; safety and the numerical digit of high-quality can be provided, and the most compatible with HDMI.WHDI transmission range more than 30 meters, and can penetrate barrier and wall, and time delay is less than 1 millisecond, reduces data delay, and WHDI reception technique makes it possible to realize undelayed wireless audio-video transmission.WIFI signal processor makes it possible to realize the transmitted in both directions of data, its compared with WiFi technology consistent, it is possible to have as with between the main frame of WIFI module and carry out two-way communication.The present invention without postpone wireless audio and video receptor can and outside have between the main frame of wireless audio-video transmission function and carry out two-way communication.This receptor arranges WIFI signal processor and WHDI receptor simultaneously, make it possible to receive multiple-frequency signal (" 802.11ac, 802.11n " same to whdi), on the one hand WHDI receptor can be used to carry out the reception of wireless audio and video data, avoid postponing, still further aspect is because have employed WIFI signal processor, make it possible to carry out bidirectional data transfers between main frame, meet the needs of user.Its built-in internal battery, eliminates externally fed wiring simultaneously, reduces the volume of receptor.The wireless audio and video data that receptor receives are shown on the display device by HDMI, it is achieved undelayed audio, video data transmits.
Further, above-mentioned also include built-in external memory without postponing wireless audio and video receptor, described built-in deposit outer reservoir and connect WIFI signal processor.Postponing in wireless audio and video receptor in this nothing can built-in external memory, it is achieved storage function, such as realizes the wireless nas(network storage) function.
Internal battery is used to carry out wireless charging so that the receptor of the present invention only needs single line to be connected on display device, eliminates supply lines, reduces the volume of receptor.Qi is " wireless charging " standard that the wireless charging alliance of standardization body (Wireless Power Consortium, hereinafter referred to as " alliance ") of global first promotion wireless charging technology releases, and it possesses convenience and the big feature of versatility two.
The invention also discloses and a kind of use the implementation method without postponing wireless audio and video receptor that WHDI realizes, it specifically includes below step: the data interactive mode judging between main frame and receptor and the data type transmitted;When judged result is main frame send audio/video flow to receptor time, use WHDI signal to be transmitted, i.e. WHDI sender unit on main frame and the WHDI signal receiver on receptor carries out unidirectional audio/video flow transmission;When judged result is main frame send non-audio/video flow to receptor time, use WIFI signal to be transmitted, i.e. WIFI signal processor on main frame carries out data transmission with the WIFI signal processor on receptor;When judged result is receptor send data to main frame time, use WIFI signal to be transmitted, i.e. WIFI signal processor on main frame carries out data transmission with the WIFI signal processor on receptor;Described receptor is connected by holding wire with external display device.
The main frame communicated with receptor can be the main frame of normal configuration, it can also be the main frame of mouse profile, it specifically includes: the housing of mouse profile, and it is arranged on the mainboard of enclosure interior, power module, mouse signal receptor and wireless signal transmitter, integrated CPU on described mainboard, hard disk and internal memory, described power module connects mainboard, mouse signal receptor and wireless signal transmitter, described mouse signal receptor connects mainboard, described wireless signal transmitter connects mainboard, the output signal of mainboard is sent to external display device by wireless signal transmitter, the nothing arranging the present invention in external display device postpones wireless audio and video receptor, connected by wireless signal between described wireless signal transmitter and wireless signal receiver;Described wireless signal transmitter includes video acquisition module, video encoding module, transmitting data control block and video sending module, and described wireless signal receiver includes video reception module, Video decoding module and reception data control block;At transmitting terminal, video acquisition module complete the collection of video data, by the video data collected feeding video encoding module encode, encoded after code stream launch data control block control under send into wireless channel be transmitted;At receiving terminal, video reception module receive the code stream of wireless channel transmission, and send into Video decoding module and be decoded, and by the display of the outside of decoded video data transmission under the control receiving data control block.The inside of main frame includes CPU, internal memory, sound card, video card etc., it is capable of all functions that a conventional host is capable of, it is mouse profile by its shell simultaneously, can directly input, the relevant device being sent on mainboard after the command process that mouse is inputted by built-in mouse signal receptor, video after mainboard processes then is sent to external wireless signals receptor by wireless signal transmitter or/and voice data exports, audio-video signal just can be exported with the external display of wireless signal receiver or television set or projector, by arranging mainboard in the housing of mouse profile, make this main frame can realize the function of conventional host, the profile of its mouse connects again mainboard simultaneously, its mouse profile can use as conventional mice again, meet the use habit of user.Its volume is little, it is simple to carry, and therefore, is very easy to the use of user.
Described above illustrate and describes a preferred embodiment of the present invention, but as previously mentioned, it is to be understood that the present invention is not limited to form disclosed herein, it is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and can be modified by above-mentioned teaching or the technology of association area or knowledge in invention contemplated scope described herein.And the change that those skilled in the art are carried out and change are without departing from the spirit and scope of the present invention, the most all should be in the protection domain of claims of the present invention.

Claims (10)

1. the nothing using WHDI to realize postpones wireless audio and video receptor, it is characterized in that specifically including WIFI signal processor, WHDI receptor and HDMI and USB interface, described WHDI receptor connects HDMI, and described WIFI signal processor connects USB interface;Described WIFI signal processor is used for carrying out two-way data transmission between the WIFI signal process on external host, and described WHDI receptor receives the audio/video flow that the WHDI transmitter on external host sends;Described WHDI transmitter and WHDI receptor are used for transmitting audio/video flow, and described WIFI signal processes other data for the non-audio/video flow of transmitted in both directions.
2. as claimed in claim 1 without postponing wireless audio and video receptor, it is characterized in that described nothing postpones wireless audio and video receptor and also includes internal battery and charging circuit, described internal battery connects charging circuit, and described internal battery connects WIFI signal processor and WHDI receptor.
3. as claimed in claim 2 without postponing wireless audio and video receptor, it is characterised in that described charging circuit is wireless charging circuit.
4. as claimed in claim 3 without postponing wireless audio and video receptor, it is characterized in that described nothing postpones wireless audio and video receptor and also includes wired charging circuit and wired power supply circuits, described wired charging circuit charges to internal battery by connecting external power source, and described wired power supply circuits are powered to WIFI signal processor and WHDI receptor by connecting external power source.
5. the nothing as described in claim 1 or 4 postpones wireless audio and video receptor, it is characterised in that described nothing postpones wireless audio and video receptor and also includes built-in external memory, and described built-in external memory connects WIFI signal processor.
6. as claimed in claim 5 without postponing wireless audio and video receptor, it is characterised in that the described expansion interface also including external equipment without postponing wireless audio and video receptor, the expansion interface of described external equipment is connected with WIFI signal processor signal.
7. as claimed in claim 6 without postponing wireless audio and video receptor, it is characterised in that described without postponing to communicate between wireless audio and video receptor and the main frame with wireless audio-video transmission function.
8. as claimed in claim 7 without postponing wireless audio and video receptor, it is characterised in that described nothing postpones wireless audio and video receptor and also includes router, and described router connects internal battery.
9. as claimed in claim 8 without postponing wireless audio and video receptor, it is characterised in that described nothing postpones wireless audio and video receptor and also includes that audio output interface, described audio output interface are connected with WIFI signal processor, WHDI receptor signal.
10. using the implementation method without postponing wireless audio and video receptor that WHDI realizes, it specifically includes below step: the data interactive mode judging between main frame and receptor and the data type transmitted;When judged result is main frame send audio/video flow to receptor time, use WHDI signal to be transmitted, i.e. WHDI sender unit on main frame and the WHDI signal receiver on receptor carries out unidirectional audio/video flow transmission;When judged result is main frame send non-audio/video flow to receptor time, use WIFI signal to be transmitted, i.e. WIFI signal processor on main frame carries out data transmission with the WIFI signal processor on receptor;When judged result is receptor send data to main frame time, use WIFI signal to be transmitted, i.e. WIFI signal processor on main frame carries out data transmission with the WIFI signal processor on receptor;Described receptor is connected by holding wire with external display device.
CN201510203925.0A 2015-04-27 2015-04-27 A kind of nothing using WHDI to realize postpones wireless audio and video receptor and its implementation CN106162004A (en)

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