CN201491138U - Wireless high-definition transceiver and television with wireless receiving function - Google Patents
Wireless high-definition transceiver and television with wireless receiving function Download PDFInfo
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- CN201491138U CN201491138U CN2009202253305U CN200920225330U CN201491138U CN 201491138 U CN201491138 U CN 201491138U CN 2009202253305 U CN2009202253305 U CN 2009202253305U CN 200920225330 U CN200920225330 U CN 200920225330U CN 201491138 U CN201491138 U CN 201491138U
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Abstract
The utility model discloses a wireless high-definition transceiver and a television with a wireless receiving function. The wireless high-definition transceiver comprises a wireless transmitter unit and a wireless receiver unit; wherein the wireless transmitter unit comprises a processing module and a transmitting module, the processing unit receives analog or digital audio and video signals issued by an external signal source and zooms and converts the signals to generate digital audio and video signals, the digital audio and video signals are output to the transmitting module for channel encoding and are then transmitted to the wireless receiver unit through a WHDI wireless network; the wireless receiver unit comprises a receiving module and a converting module, the receiving module receives the digital signals through the WHDI wireless network, decodes channels and then reduces the digital signals into digital audio and video signals, and the converting module converts the digital audio and video signals into HDMI high-definition signals and outputs the HDMI high-definition signals to a display terminal. Since the audio and video signals output by the signal source are transmitted to the display terminal in the wireless high-definition transmission method, the utility model saves the connecting wires between the display terminal and the signal source, thereby facilitating the free arrangement of the display terminal and the signal source.
Description
Technical field
The utility model belongs to audio frequency and video receiving equipment technical field, specifically, relates to a kind of television receiver that has the device of high-definition signal radio transmission-receiving function and have the wireless receiving function.
Background technology
Along with integrated circuit industry development with rapid changepl. never-ending changes and improvements, emerging in large numbers fast of new technology, new product, color television set also by original can only receive single TV RF signals develop into can external video tape recorder, the medium display terminal of multiple function such as VCD player, DVD player, USB memory device.But the thing followed is increasing audio frequency, video connecting line has brought inconvenience to people.Especially for popular at present high-end TV product, such as liquid crystal TV set LCD TV, it has abundant signaling interface, and connecting line is a lot, if it is moved, signal source will move thereupon together, and is very inconvenient.In addition, when the user need hang on liquid crystal TV set on the wall, it is loaded down with trivial details and in disorder that the connecting line of television set and signal source just seems, thereby influenced the aesthetic property of whole household.
The utility model content
The utility model is in order to solve the problem that the line that television set and signal source wired connection are caused in the prior art is loaded down with trivial details, be inconvenient to move, a kind of WirelessHD R-T unit has been proposed, the audio-video signal of signal source output can be transmitted to display terminals such as television set with the WirelessHD transmission means, thereby saved the connecting line between display terminal and the signal source, made display terminal and signal source can arbitrarily move, put arbitrarily.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of WirelessHD R-T unit comprises wireless transmitting unit and radio receiving unit; In described wireless transmitting unit, include processing module and transmitter module, described processing module receives simulation or the digital audio-video signal that outside source sends, carry out convergent-divergent and conversion process, after generating digital audio-video signal and exporting transmitter module to and carry out chnnel coding, send to radio receiving unit by the WHDI wireless network; In described radio receiving unit, include receiver module and modular converter, described receiver module is by WHDI wireless network receiving digital signals, carry out restoring digital audio-video signal behind the channel-decoding, generate the HDMI high-definition signal through the modular converter conversion and export display terminal to.
Further, in described processing module, comprise master chip and video conversion chip, described master chip receives simulation or the digital audio-video signal that outside source sends, after carrying out the convergent-divergent processing, converting vision signal to the LVDS signal exports the video conversion chip on the one hand, generates the digital rgb signal with conversion and exports transmitter module to; Convert audio signal to I on the other hand
2The S digital audio and video signals exports transmitter module to; Digital rgb signal and the I of described transmitter module to receiving
2After the S digital audio and video signals carries out chnnel coding, send to radio receiving unit by the WHDI wireless network.
Further again, in described radio receiving unit, described modular converter is a high-definition signal conversion chip, receives the digital rgb signal and the I of described receiver module decoding output
2The S digital audio and video signals, and then convert the HDMI interface that the HDMI high-definition signal exports display terminal to.
Further again, described transmitter module is connected one road transmission control chip separately with receiver module, to set up network linking, control transmitter module and receiver module radio communication.
Further, described wireless transmitting unit can be arranged on independently in the launch-box, and is external with outside source, perhaps directly is built in the outside source; Described radio receiving unit also can be arranged on independently in the receiving box, and is external with display terminal, perhaps directly is built in the display terminal.
Preferably, described radio receiving unit is arranged on independently in the receiving box, transfers to wherein one road gating end of diverter switch by the HDMI high-definition signal of radio receiving unit output; In described receiving box, also include other one group of master chip, video conversion chip and high-definition signal conversion chip; Described master chip has line access mode to be input to the simulation of receiving box or digital audio-video signal to employing to carry out after convergent-divergent handles, converting vision signal to the LVDS signal exports the video conversion chip on the one hand, generates the digital rgb signal with conversion and exports the high-definition signal conversion chip to; Convert audio signal to I on the other hand
2The S digital audio and video signals exports described high-definition signal conversion chip to, and then generates the HDMI high-definition signal through described high-definition signal conversion chip conversion, exports other one road gating end of described diverter switch to; The common port of described diverter switch connects the output interface that is provided with on the receiving box, and then is connected to by holding wire on the HDMI interface of display terminal; The control end of diverter switch connects master chip, by described master chip diverter switch is carried out break-make control.
Establishment form based on above-mentioned WirelessHD R-T unit, the utility model has proposed a kind of television set that adopts described establishment form design again, comprise radio receiving unit, described radio receiving unit is built in the television set main body or is external on the HDMI interface of television set; Including in described radio receiving unit can be by the receiver module of WHDI wireless network with the wireless transmitting unit linking communications of outside, and the modular converter that the digital audio-video signal of described receiver module output is converted to the HDMI high-definition signal, HDMI high-definition signal by the output of described modular converter is play output after the HDMI of television set inside Channel Transmission is handled to decoding deck.
Further, in described receiving element, receiver module generates digital rgb signal and I after the digital signal that receives is carried out the channel-decoding processing
2The S digital audio and video signals exports modular converter to; Described modular converter is a high-definition signal conversion chip, with digital rgb signal and I
2The S digital audio and video signals converts the HDMI high-definition signal to, exports the HDMI channel to; Described receiver module connects transmission control chip, sets up network linking by transmission control chip and external emission unit, control receiver module and transmitter unit radio communication.
Further again, in order to realize and described radio receiving unit linking communications, in described wireless transmitting unit, be provided with processing module and transmitter module, described processing module receives simulation or the digital audio-video signal that outside source sends, after carrying out convergent-divergent and conversion process, the generation digital audio-video signal exports transmitter module to and carries out chnnel coding, and then sends to radio receiving unit by the WHDI wireless network.
Further again, in described processing module, comprise master chip and video conversion chip, described master chip receives simulation or the digital audio-video signal that outside source sends, after carrying out the convergent-divergent processing, converting vision signal to the LVDS signal exports the video conversion chip on the one hand, generates the digital rgb signal with conversion and exports transmitter module to; Convert audio signal to I on the other hand
2The S digital audio and video signals exports transmitter module to; Digital rgb signal and the I of described transmitter module to receiving
2After the S digital audio and video signals carries out chnnel coding, send to radio receiving unit by the WHDI wireless network; Described transmitter module connects another transmission control chip, sets up network linking by described transmission control chip and receiver module, and then control transmitter module and receiver module carry out radio communication.
Compared with prior art, advantage of the present utility model and good effect are: the utility model is by the WirelessHD R-T unit of design based on the WHDI wireless network, and display terminals such as receiving element that will be wherein and television set are connected or directly are built in the display terminal, transmitter unit wherein is connected with signal source, thereby the audio-video signal of signal source output can be sent to display terminal with the WirelessHD transmission means, the wireless connections between display terminal and the signal source have been realized, the user can not enjoy TV station or video tape recorder under this machine does not connect the situation of any holding wire, VCD, the highlight that signal sources such as DVD player are play, thereby make whole household become succinct, display terminal and signal source can arbitrarily move, put arbitrarily, greatly made things convenient for user's daily use.
After reading the detailed description of the utility model execution mode in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the theory diagram of the WirelessHD R-T unit that proposes of the utility model;
Fig. 2 is the physical circuit theory diagram of a kind of embodiment of WirelessHD R-T unit shown in Figure 1;
Fig. 3 is the schematic block circuit diagram of a kind of embodiment with television set of wireless receiving function.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.
At present, the Radio Transmission Technology of the comparative maturity that occurs both at home and abroad generally comprises Wireless HD, 802.11n, UWB, WHDI technology.Wherein, WHDI (Wireless Home Digital Interface, wireless family digital interface) technology obviously is better than other three kinds of technology at the aspects such as distance, reliability, ability through walls and picture quality of wireless transmission.Based on this, the utility model adopts the WHDI technology to design the WirelessHD R-T unit, realizes the wireless transmission of high-definition video signal.
WirelessHD R-T unit of the present utility model comprises wireless transmitting unit and radio receiving unit two parts, referring to shown in Figure 1.Wherein, design is useful on and receives simulation or the digital audio-video signal that outside source sends in wireless transmitting unit, and described audio-video signal is carried out convergent-divergent handle, and conversion generates the processing module of digital audio-video signal output; And the digital audio-video signal of described processing module output carried out chnnel coding, and send to the transmitter module of radio receiving unit by the WHDI wireless network.In described radio receiving unit, include receiver module and modular converter, receiver module is by the digital signal of WHDI wireless network reception from wireless transmitting unit, carry out restoring digital audio-video signal behind the channel-decoding, generate the HDMI high-definition signal through the modular converter conversion and export the broadcast that display terminal carries out program to.
The physical circuit that elaborates described WirelessHD R-T unit below by a specific embodiment is formed structure and operation principle thereof.
Embodiment one, and referring to shown in Figure 2, in the present embodiment, the processing module in the wireless transmitting unit can specifically adopt a master chip N39 to cooperate a video conversion chip U4 to set up formation.Wherein, simulation that outside source sends or digital audio-video signal can receive by master chip N39, vision signal is wherein carried out convergent-divergent and conversion process after, generate differential signal (such as the LVDS signal) and export video conversion chip U4 to.Described video conversion chip U4 has the function that differential signal is converted to the digital rgb signal, converts the vision signal of the LVDS signal format of master chip N39 output to the digital rgb signal and exports transmitter module to.By simulation or the digital audio and video signals that master chip N39 receives, handle and change generation I through master chip N39
2The S digital audio and video signals directly exports transmitter module to.Digital rgb signal and the I of transmitter module to receiving
2The S digital audio and video signals carries out chnnel coding, generates the high-definition digital signal packet of compression, by the WHDI wireless network, uses the 5GHz frequency range, sends to radio receiving unit.
Certainly, described processing module also can adopt one to have the integrated chip that simulation or digital audio-video signal are directly changed into digital rgb signal output and realize, present embodiment be not limited in above for example.
In radio receiving unit, receiver module carries out RFDC by WHDI wireless network and transmitter module, receives the high-definition digital signal packet that transmitter module is launched, carry out channel-decoding after, restore digital rgb signal and I
2The S digital audio and video signals exports modular converter to.In the present embodiment, described modular converter can specifically adopt one the digital rgb conversion of signals can be become the high-definition signal conversion chip U12 of HDMI signal to realize, as shown in Figure 2.High-definition signal conversion chip U12 is with the digital rgb signal and the I that receive
2The S digital audio and video signals is together changed and is generated the HDMI interface that the HDMI high-definition signal exports display terminal to, and then can show audio/video program from signal source by display terminal.
For the wireless communication procedure between transmitter module and the receiver module is control effectively, present embodiment has been connected one road transmission control chip U9 separately on transmitter module and receiver module, as shown in Figure 2.Described transmission control chip U9 can adopt an integrated control chip based on the ARM microprocessor to design, be used for setting up the wireless network link between transmitter module and the receiver module, and the wireless communication procedure between transmitter module and the receiver module is controlled in real time.When wireless network blocked, transmission control chip U19 can adjust the carrier frequency of transmission signals by adjusting frequency automatically, to reach the purpose of design that the high-speed transfer bandwidth is provided.
Owing to adopted signal transmission form, therefore, can realize the wireless high-speed transmission of the contour voiceless sound vision signal of 720P or 1080P based on the WHDI wireless network.
For WirelessHD R-T unit shown in Figure 2, can be in launch-box independently with the design of wherein wireless transmitting unit, be connected with outside sources such as set-top box, VCD or DVD player, USB device, receiving the analog audio-video signal or the digital audio-video signal of the output of external signal source device, and then launch with the WirelessHD transmission means.Certainly, also described wireless transmitting unit directly can be selected to be built in wherein a kind of external signal source device, make the outside source equipment self possess the WirelessHD emissivities.
In like manner,, also can design in receiving box independently, adopt and the external mode of display terminal such as television set, realize audio/video program displaying the play on display terminal in the outside source for radio receiving unit shown in Figure 2.Specifically can select to be connected on wherein one road HDMI interface of display terminals such as liquid crystal TV set, make HDMI high-definition signal directly enter display terminal, handle output by the decoding deck of display terminal inside by the HDMI interface through radio receiving unit conversion output.Certainly, also described radio receiving unit directly can be built in the housing of display terminal, specifically can be arranged on the inner decoding plate of display terminals such as television set, be integrated with display terminal, thereby make display terminal self possess the WirelessHD receiving ability, present embodiment is not limited in above giving an example.
In the time of in described radio receiving unit being arranged on independently receiving box, can expand, make it possess the ability of wired reception simulation or digital audio-video signal simultaneously the function of described receiving box.As shown in Figure 2, copy the structure form of wireless transmitting unit, design other one group of master chip N39, video conversion chip U4 and high-definition signal conversion chip U10 in receiving box.Wherein, master chip N39 has line access mode to be input to the simulation of receiving box or digital audio-video signal to employing to carry out after convergent-divergent handles, convert vision signal to differential signal on the one hand, such as the LVDS signal, export video conversion chip U4 to, export among the high-definition signal conversion chip U10 differential signal is converted to the digital rgb signal.On the other hand, change the audio signal of output with I by master chip N39
2S digital audio and video signals form transfers among the high-definition signal conversion chip U10.Described high-definition signal conversion chip U10 is with the digital rgb signal and the I that receive
2The S digital audio and video signals is together changed and is generated the HDMI high-definition signal, exports wherein one road gating end of diverter switch U17 to.Other one road gating end of described diverter switch U17 then connects the output of high-definition signal conversion chip U12, under the control action of master chip N39, selects to export the audio-video signal of wired reception or the audio-video signal of wireless receiving to outside display terminal.The control end of described diverter switch U17 connects master chip N39, receives the channel selecting control signal CTRL that master chip N39 generates and exports according to user instruction, and its common port connects the output interface that is provided with on receiving box.Signal cable is connected on the HDMI interface of the output interface of described receiving box and display terminal, can realizes the broadcast output of audio/video program on display terminal in the outside source.
Be example below with the liquid crystal TV set, elaborate concrete application and the operation principle thereof of above-mentioned WirelessHD R-T unit in tv product by a specific embodiment.
Embodiment two, referring to shown in Figure 3, receiving box shown in Figure 2 is connected on the HDMI interface of television set, perhaps the receiver module in the radio receiving unit, high-definition signal conversion chip U12 and transmission control chip U9 directly are built in the housing of television set, specifically can be arranged on the decoding deck of television set inside, make the television set body possess the WirelessHD receiving ability.
HDMI signal that will be by radio receiving unit output via wherein one road HDMI Channel Transmission of television set inside to decoding chip, after handling by decoding chip, export display unit and audio unit respectively to, drive liquid crystal display screen display program image, drive the sound accompaniment of loud speaker output program.
In order to realize the wireless link between outside source and the television set, wireless transmitting unit shown in Figure 2 is connected with outside source, by simulation or the digital audio-video signal conversion generation wireless audio and video signal of wireless transmitting unit with outside source output, and then send to radio receiving unit by the WHDI wireless network, to realize the wireless receiving function of television set to audio-video signal.
Certainly, described television set also can be directly and the signal source that self possesses the WirelessHD emissivities carry out radio communication, receive the wireless audio and video signal that it is launched, carry out displaying the play of audio/video program.
WirelessHD R-T unit of the present utility model adopts the radio frequency band of 5GHz, and it is little delay time, does not have compression, supports through wallsly, and long transmission distance can reach the transmission range about 30 meters, thereby can support any placement in 30 meters distances of transmitting terminal.Receiving terminal can be transferred on the liquid crystal TV set by the HDMI interface and shows receiving the wireless audio and video signal, thereby has increased the flexibility that equipment is placed.Simultaneously, receiving terminal also has the function of direct input, can be used as hub and uses, and especially for ultra-thin liquid crystal TV set, can significantly reduce the wiring quantity that is connected on the television set.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; should be noted that; the utility model also is not limited in above-mentioned giving an example; variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (10)
1. a WirelessHD R-T unit is characterized in that: comprise wireless transmitting unit and radio receiving unit; In described wireless transmitting unit, include processing module and transmitter module, described processing module receives simulation or the digital audio-video signal that outside source sends, carry out convergent-divergent and conversion process, after generating digital audio-video signal and exporting transmitter module to and carry out chnnel coding, send to radio receiving unit by the WHDI wireless network; In described radio receiving unit, include receiver module and modular converter, described receiver module is by WHDI wireless network receiving digital signals, carry out restoring digital audio-video signal behind the channel-decoding, generate the HDMI high-definition signal through the modular converter conversion and export display terminal to.
2. WirelessHD R-T unit according to claim 1, it is characterized in that: in described processing module, comprise master chip and video conversion chip, described master chip receives simulation or the digital audio-video signal that outside source sends, after carrying out the convergent-divergent processing, converting vision signal to the LVDS signal exports the video conversion chip on the one hand, generates the digital rgb signal with conversion and exports transmitter module to; Convert audio signal to I on the other hand
2The S digital audio and video signals exports transmitter module to; Digital rgb signal and the I of described transmitter module to receiving
2After the S digital audio and video signals carries out chnnel coding, send to radio receiving unit by the WHDI wireless network.
3. WirelessHD R-T unit according to claim 1 is characterized in that: in described radio receiving unit, described modular converter is a high-definition signal conversion chip, receives the digital rgb signal and the I of described receiver module decoding output
2The S digital audio and video signals, and then convert the HDMI interface that the HDMI high-definition signal exports display terminal to.
4. according to each described WirelessHD R-T unit in the claim 1 to 3, it is characterized in that: described transmitter module is connected one road transmission control chip separately with receiver module, set up network linking by described transmission control chip, and control transmitter module and receiver module carry out radio communication.
5. WirelessHD R-T unit according to claim 4 is characterized in that: described wireless transmitting unit is arranged on independently in the launch-box, and is external with outside source, perhaps directly is built in the outside source; Described radio receiving unit is arranged on independently in the receiving box, and is external with display terminal, perhaps directly is built in the display terminal.
6. WirelessHD R-T unit according to claim 5 is characterized in that: described radio receiving unit is arranged on independently in the receiving box, transfers to wherein one road gating end of diverter switch by the HDMI high-definition signal of radio receiving unit output; In described receiving box, also include other one group of master chip, video conversion chip and high-definition signal conversion chip; Described master chip has line access mode to be input to the simulation of receiving box or digital audio-video signal to employing to carry out after convergent-divergent handles, converting vision signal to the LVDS signal exports the video conversion chip on the one hand, generates the digital rgb signal with conversion and exports the high-definition signal conversion chip to; Convert audio signal to I on the other hand
2The S digital audio and video signals exports described high-definition signal conversion chip to, and then generates the HDMI high-definition signal through described high-definition signal conversion chip conversion, exports other one road gating end of described diverter switch to; The common port of described diverter switch connects the output interface that is provided with on the receiving box, and the control end of diverter switch connects master chip, by described master chip diverter switch is carried out break-make control.
7. television set, it is characterized in that: comprise radio receiving unit, described radio receiving unit is built in the television set main body or is external on the HDMI interface of television set; Including in described radio receiving unit can be by the receiver module of WHDI wireless network with the wireless transmitting unit linking communications of outside, and convert the digital audio-video signal of described receiver module output the modular converter of HDMI high-definition signal to, after handling to decoding deck, the HDMI of television set inside Channel Transmission plays output by the HDMI high-definition signal of described modular converter output.
8. television set according to claim 7 is characterized in that: in described radio receiving unit, receiver module generates digital rgb signal and I after the digital signal that receives is carried out the channel-decoding processing
2The S digital audio and video signals exports modular converter to; Described modular converter is a high-definition signal conversion chip, with digital rgb signal and I
2The S digital audio and video signals converts the HDMI high-definition signal to, exports the HDMI channel of television set to; Described receiver module connects transmission control chip, sets up network linking by transmission control chip and external emission unit, and controls receiver module and transmitter unit carries out radio communication.
9. according to claim 7 or 8 described television sets, it is characterized in that: described wireless transmitting unit connects outside source, wherein include processing module and transmitter module, described processing module receives simulation or the digital audio-video signal that outside source sends, after carrying out convergent-divergent and conversion process, the generation digital audio-video signal exports transmitter module to and carries out chnnel coding, and then sends to radio receiving unit by the WHDI wireless network.
10. television set according to claim 9, it is characterized in that: in described processing module, comprise master chip and video conversion chip, described master chip receives simulation or the digital audio-video signal that outside source sends, after carrying out the convergent-divergent processing, converting vision signal to the LVDS signal exports the video conversion chip on the one hand, generates the digital rgb signal with conversion and exports transmitter module to; Convert audio signal to I on the other hand
2The S digital audio and video signals exports transmitter module to; Digital rgb signal and the I of described transmitter module to receiving
2After the S digital audio and video signals carries out chnnel coding, send to radio receiving unit by the WHDI wireless network; Described transmitter module connects other one road transmission control chip, sets up network linking by described transmission control chip and receiver module, and then control transmitter module and receiver module carry out radio communication.
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| CN2009202253305U CN201491138U (en) | 2009-08-29 | 2009-08-29 | Wireless high-definition transceiver and television with wireless receiving function |
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| CN2009202253305U CN201491138U (en) | 2009-08-29 | 2009-08-29 | Wireless high-definition transceiver and television with wireless receiving function |
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| CN102143363A (en) * | 2011-04-11 | 2011-08-03 | 成都九洲迪飞科技有限责任公司 | Wireless high-definition LVDS video transmission module |
| CN102137254A (en) * | 2011-04-11 | 2011-07-27 | 成都九洲迪飞科技有限责任公司 | Wireless high-definition video transmission module |
| CN102395018A (en) * | 2011-09-28 | 2012-03-28 | 上海华勤通讯技术有限公司 | Wireless conversion device of multimedia interface |
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| CN105450968A (en) * | 2014-08-29 | 2016-03-30 | 深圳Tcl新技术有限公司 | Modular television and television signal processing method thereof |
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| WO2017096828A1 (en) * | 2015-12-11 | 2017-06-15 | 乐视控股（北京）有限公司 | Method for realizing split-type television and split-type television |
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