CN1983216B - Wireless displaying system and wireless data transmitter - Google Patents
Wireless displaying system and wireless data transmitter Download PDFInfo
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- CN1983216B CN1983216B CN2005101305722A CN200510130572A CN1983216B CN 1983216 B CN1983216 B CN 1983216B CN 2005101305722 A CN2005101305722 A CN 2005101305722A CN 200510130572 A CN200510130572 A CN 200510130572A CN 1983216 B CN1983216 B CN 1983216B
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Abstract
A radio display system is prepared as using host end data transmission unit to obtain display data from host to generate message and to transmit said message to display device end data transmission unit through UWB way, receiving data message transmitted in UWB way by display device end data transmission unit and analyzing said data message to be display data being outputted to display device.
Description
Technical field
The present invention relates to data wireless transmission and display technique, especially relate to a kind of wireless display system and wireless data transmission device.
Background technology
Modern society, the contact between the people and link up increasingly, the frequent day by day and quantity of information of message exchange increases gradually.Along with the development of electronic technology and material industry, people contact various electronic data processing systems increasingly extensively, therefore can face various demonstration facilities, display device more, more extensive, more frequently inevitably.
We can say that at present, display device has more and more become an indispensable part in people's life.Display device mainly is divided into: cathode-ray tube (CRT) (Cathode Ray Tube) display, be called for short CRT monitor, and be the important display part of desk-top computer; Flat-panel monitor mainly comprises LCD (abbreviation LCD display) and plasma display etc., is the display device that is applied in a plurality of fields, comprises computing machine, domestic. applications etc.; Large-screen display equipment comprises projective large-screen (being called for short DLP) and video wall etc., is the display device of public place first-selection.
At present, the display device signal adopts cable to transmit usually, that is to say, usually all need a cable to connect between main frame part and the display device, this is that the flow of the video data of its input is big, required bandwidth height because as display device.
But display device adopts the cable connection to have more weak point: for example, must adopt cable link together with CRT monitor when desk-top computer uses, length be subjected to the influence of cable, moves also to be restricted.
For people are freed from cable, facility such as use a computer more easily need utilize wireless technology to replace this root cable, adopts Wireless transmission mode to come to transmit signal to display device, thereby breaks away from the constraint of cable.
Because the data volume between computing machine and the display device is big, therefore need some advanced technology could make wireless demonstration become possibility.More existing patents and technology for example mostly adopt 802.11 such wireless technologys, its flow process roughly comprises: main process equipment carries out the degree of depth compression (lossy compression method) of image earlier, by the IEEE802.11a/b Radio Transmission Technology signal is sent to display device then; Carry out decompress(ion) behind the display device wireless receiving again, the dot matrix image that recovers is exported demonstration according to the interface signal requirement of display device.
But the defective of the prior art is: because Radio Transmission Technology (IEEE802.11a/b) can not well solve the problem of display device high flow capacity, therefore need to adopt degree of depth lossy compression method, the image that causes showing can not reach original image and synchronous effect, causes the decline and the cross-color of screen quality; All brought very heavy computational load for simultaneously computer terminal and display device two ends, the performance of system is brought very big influence; Can only adopt the design of compression and decompress(ion), cost is also wayward in addition.Because existing 802.11 system bandwidth deficiencies,, during particularly high-quality video, can't well high-quality screen in time be transferred to the display device end therefore for playing real-time video when computing machine.
In view of this, need provide a kind of novel wireless display mechanism to solve the problems referred to above.
Summary of the invention
The technical matters that the present invention solves is to provide a kind of wireless display system and wireless data transmission device, can improve screen quality, carries out real-time video transmission.
For this reason, the technical scheme of technical solution problem of the present invention is: a kind of wireless display system is provided, comprises main frame and display device, also comprise host side data transmission device and display device end data transmitting device; This host side data transmission device is used for obtaining video data from this main frame, generates data message and sends display device end data transmitting device to by the UWB mode; Described display device end data transmitting device, export display device to after being used to receive this data message that transmits in the UWB mode and resolving to video data, wherein, described display device end transmitting device directly utilizes the frame pixel data that transmits to carry out the high speed refresh process; Described display device end data transmitting device specifically comprises: the 2nd UWB Transmit-Receive Unit is used to utilize the data message of UWB wireless receiving from the host side data transmission device; The data protocol unwrapper unit is used for the data message that the 2nd UWB Transmit-Receive Unit receives is separated into on-screen data according to agreement; Show and receive buffer memory; Show output unit, be used for receiving buffer memory extraction frame data and carry out framing and then deliver to a D/A converter conversion outputing to display device from described demonstration.Wherein, described demonstration output unit specifically comprises: VGA DMA unit is used for the on-screen data of DDR storage is taken out with dma mode from DDR; VGA control unit is used for controlling the read-write sequence of capable field of various VGA etc.; The VGA timing unit various sequential that generate the capable field information of VGA, or described demonstration output unit is specially GPU, is used for showing control.
Preferably, described display device end data transmitting device also comprises:
Second control module is used for the Authentication and Key Agreement work that the 2nd UWB Transmit-Receive Unit is controlled and carried out two ends;
Preferably, described data protocol unwrapper unit is HSDI Control unit.
Preferably, described data protocol unwrapper unit is the embedded processing chip.
Preferably, described display end data transmission device is inserted in outward on the display device or with display device and becomes one.
Preferably, described host side data transmission device comprises:
The video data collecting unit is used for obtaining video data from main frame;
The data protocol packaged unit is used for video data that described video data collecting unit is obtained and breaks into corresponding data message according to the agreement of Network Transmission;
The one UWB Transmit-Receive Unit is used for data message is utilized the wireless display device end data transmitting device of delivering to of UWB;
First control module is used for the Authentication and Key Agreement work that a UWB Transmit-Receive Unit is controlled and carried out two ends.
Preferably, described video data collecting unit comprises A/D converter; Described data protocol packaged unit comprises ADC control unit; Described first control module comprises HSDI Control unit.
Preferably, described host side data transmission device is inserted in the video card of main frame or the output interface of graphics controller outward, and directly the output from video card obtains on-screen data.
Preferably, described host side data transmission device is the data card of main frame, and it obtains on-screen data from the operating system of main frame by main frame.
Preferably, described host side data transmission device comes the screen printing data by Mirror Driver virtual video card equipment under Windows.
Preferably, described host side data transmission device also comprises data compression unit, is sent to the data protocol packaged unit after being used for the video data that the video data collecting unit obtains compressed; Described display device end data transmitting device also comprises the data decompression unit, is sent to the demonstration output unit after the on-screen data after being used for the data protocol unwrapper unit unpacked decompresses.
Preferably, the communication protocol between described host side data transmission device and the display device end data transmitting device adopts TCP/IP, Wireless USB, wireless 1394, DVI/HSDI agreement or self-defined host-host protocol.
Display device end data transmitting device provided by the invention comprises:
The 2nd UWB Transmit-Receive Unit is used to utilize the data message of UWB wireless receiving from the host side data transmission device;
Second control module is used for the Authentication and Key Agreement work that the 2nd UWB Transmit-Receive Unit is controlled and carried out two ends;
The data protocol unwrapper unit is used for the data message that the 2nd UWB Transmit-Receive Unit receives is separated into on-screen data according to agreement;
Show output unit, be used for aforementioned on-screen data is sent to display device output.
Show and receive buffer memory;
Show output unit, be used for receiving buffer memory extraction frame data and carry out framing and then deliver to a D/A converter conversion outputing to display device from described demonstration;
Wherein, described demonstration output unit specifically comprises:
The VGADMA unit is used for the on-screen data of DDR storage is taken out with dma mode from DDR;
VGA control unit is used for controlling the read-write sequence of capable field of various VGA etc.;
The VGA timing unit various sequential that generate the capable field information of VGA, or
Described demonstration output unit is specially GPU, is used for showing control.
With respect to prior art, the invention has the beneficial effects as follows: because the present invention utilizes UWB to carry out wireless connections between main frame and the display device, all designed the UWB data transmission unit in host side and display device end, the information of being responsible for main frame will be shown is sent on the display device in real time.Because the UWB system has high bandwidth, therefore can need not compression or carry out very simple lossless compress, so the quality under screen quality and the wired situation is about the same, does not have distortion in host side; And can carry out real-time video transmission.
Fig. 1 is the block diagram of first embodiment of wireless display system of the present invention;
Fig. 2 is the synoptic diagram of an embodiment of display device end data transmitting device shown in Figure 1;
Description of drawings
Fig. 3 is the synoptic diagram of another embodiment of display device end data transmitting device shown in Figure 1;
Fig. 4 is the software flow of display device end data transmitting device shown in Figure 3;
Fig. 5 is the synoptic diagram of the embodiment of host side data transmission device shown in Figure 1;
Fig. 6 is the block diagram of second embodiment of wireless display system of the present invention;
Fig. 7 is the block diagram of the 3rd embodiment of wireless display system of the present invention;
Fig. 8 is the workflow diagram of host side data transmission device host side when realizing with the data card form.
Seeing also Fig. 1, is the block diagram of first embodiment of wireless display system of the present invention.
Wireless display system comprises main frame 800, host side data transmission device 100 and display device end data transmitting device 200, display device 900.
Embodiment
Host side data transmission device 100 comprises video data collecting unit 110, data protocol packaged unit 120, a UWB (Ultra Wideband, ultra broadband) Transmit-Receive Unit 130 and first control module 140.Display device end data transmitting device 200 comprises the 2nd UWB (Ultra Wideband, ultra broadband) Transmit-Receive Unit 210, second control module 220, data protocol unwrapper unit 230, shows output unit 240.
Wherein, this main frame 800 can be various basic computers, for example PC main frame, server host, notebook computer, handheld device such as mobile phone, PDA etc.; This display device 900 can be various display devices, for example graphoscope (LCD, CRT etc.), projector, TV etc.; This does not give unnecessary details.
In this host side data transmission device 100, video data collecting unit 110 is used for obtaining video data from main frame 800.
Data protocol packaged unit 120 is used for video data that described video data collecting unit 110 is obtained and breaks into corresponding data message according to the agreement of Network Transmission.
The one UWB Transmit-Receive Unit 130 is used for data message is utilized the wireless display device end data transmitting device 200 of delivering to of UWB.
In this display device end data transmitting device 200, the 2nd UWB Transmit-Receive Unit 210 is used to utilize the data message of UWB wireless receiving from host side data transmission device 100.
Data protocol unwrapper unit 230 is that the data message that the 2nd UWB Transmit-Receive Unit 210 receives is separated into on-screen data according to agreement.
Show that output unit 240 is used for aforementioned on-screen data is sent to display device 200 outputs.
Wherein, the communication protocol between host side data transmission device 100 and the display device end data transmitting device 200 can adopt agreements such as TCP/IP, Wireless USB, wireless 1394, DVI/HSDI, can certainly adopt self-defining host-host protocol.
Need to prove that the present invention adopts UWB to transmit the pixel digital signal, the frame per second of transmission promptly is the frame per second of video playback under opposite extreme situations, and about promptly general 30 frames, and the refreshing frequency that need not according to video card is the transmission of per second 85 frames.In order to be implemented in the real-time display pixel data of receiving end, display device end data transmitting device 200 has simple demonstration control (being the video card function) mechanism, can directly utilize the 25 frame pixel datas that transmit and then carry out high speed refresh process (refreshing as per second 85 frames).
Among the present invention, display device end data transmitting device 200 can be that core realizes with the embedded type CPU based on present embedded architecture, also can realize by the FPGA hardware mode.
Seeing also Fig. 2, is the synoptic diagram of an embodiment of display device end data transmitting device 200 shown in Figure 1.This embodiment realizes with the pure hardware mode of FPGA.
Among this embodiment,, realize that data protocol unpacks and data decompression (under the compressed situation of data) by the data that HSDI Control unit 230 is handled from UWB transceiver 210.Wherein data enter HSDI Control unit 230 by HSDI (High Speed Differential Interface) interface (not indicating) from UWB transceiver 210.
The demonstration output function that shows output unit 240 realizes jointly by VGA DMA unit 241, VGA Control unit 242 and VGA Timing unit 243.
That is to say that the function of VGA DMA unit 241, VGA Control unit 242 and VGA Timing unit 243 realizes that exactly one is extracted frame data and carries out framing and then deliver to a D/A converter 270 (as ADV7125) conversion outputing on the display device 900 from show to receive buffer memory 260 (as MT46v16M16-6T).
Wherein, VGA DMA unit 241 is used for the on-screen data of DDR storage is taken out with dma mode from DDR; VGA control unit 242 is used for controlling the read-write sequence of capable field of various VGA etc.; And VGA timing unit 243 usefulness generate the various sequential of the capable field information of VGA.
Seeing also Fig. 3, is the synoptic diagram of another embodiment of display device end data transmitting device 200 shown in Figure 1.This embodiment realizes in the embedded system mode.
Among this embodiment, the data that IXP425 chip 230 is handled from UWB transceiver 210 are finished the parsing work of data message at network layer/transport layer and application layer protocol.
The function of the demonstration output of on-screen data is finished in GPU unit (graphic process unit) 240.Function class is with the effect of the VGA DMA unit among Fig. 2, VGA Control unit and these three unit, VGA Timing unit.Play up owing to having finished, so GPU240 only need finish simple presentation control function in host side.
Accordingly, the software flow of display device end data transmitting device 200 can be consulted Fig. 4.
Step S410, the initialization system parameter;
Step S420, initialization msg formation is communicated by letter with other client threads to set up;
Step S430 carries out network settings;
Step S440, initialization shows with control Sockets communicates by letter with main frame foundation;
Step S450, the initialization video memory carries out the FrameBuffer mapping;
Step S460 enters major cycle, comprising:
Step S461 collects the frame pixel data;
Step S462, decode frame data;
Step S463 writes among the FrameBuffer of data transmission device.
Need to prove that display end data transmission device 200 can be designed to the outer device that is inserted on the display device 900, for example outer being inserted on the VGA/DVI interface of display device 900 also can become one with display device 900, and this does not give unnecessary details.
Seeing also Fig. 5, is the synoptic diagram of the embodiment of host side data transmission device shown in Figure 1.
The host side data transmission device of this embodiment is external in the VGA interface of video card, realizes in the FPGA mode.
Wherein, the work of pixel data collection is finished by A/D converter 110 (as AD9985 unit 111 and ADC control unit 112).
Data compression and data protocol packing are finished in ADC control unit 112.
The compression of data and protocol packing are finished in ADC control unit 112, be in order to reduce the transmission of data, for gathering the data of coming in, the first step may be that compression is (certain, can not compress) yet, next protocol packing, so the collection of compression, agreement and data is to link to each other closely.
The co-ordination of whole control and sequential is finished in State Machine unit 160.
130 of UWB transceivers are used for realizing the outside transmission of data message under the control of HSDI Control unit 140.
Seeing also Fig. 6, is the block diagram of second embodiment of wireless display system of the present invention.
This embodiment and first embodiment are roughly the same, difference is, in host side data transmission device 100, be provided with data compression unit 150, be sent to data protocol packaged unit 120 after being used for the video data that video data collecting unit 110 obtains compressed; Correspondingly, in display device end data transmitting device 200, be provided with data decompression unit 250, be sent to after the on-screen data after being used for data protocol unwrapper unit 230 unpacked decompresses and show output unit 240.
Seeing also Fig. 7, is the block diagram of the 3rd embodiment of wireless display system of the present invention.
This embodiment and second embodiment are roughly the same.Its place different with second embodiment is:
In second embodiment, the outer video card of main frame 800 or the output interface of graphics controller (figure does not show) of being inserted in that host side data transmission device 100 adopts, VGA/DVI interface for example directly obtains on-screen data from the output of video card but not obtains from host operating system.
And in the 3rd embodiment, host side data transmission device 100 realizes with the form of the data card (extrapolation or embedded) of main frame 800, for example PCI/mini-PCI/USB card etc.This data card can be obtained on-screen data and be subjected to the software control the operating system on the main frame from the operating system of main frame 800 by main frame 800.
In the host side data transmission device 100 of the 3rd embodiment, except that a UWB Transmit-Receive Unit 230, remaining unit can be realized with form of software in host operating system.
Certainly, those skilled in the art will appreciate that when the host side data transmission device is realized with the form of the data card of main frame that the compression processing capacity can be set, this does not give unnecessary details yet.
Seeing also Fig. 8, is the workflow diagram (with the processing under the Windows as an example) of host side data transmission device host side when realizing with the data card form.
Step S811, the main frame start enters WinLogon.
Step S812, the WinLogon interface starts show process.
WinLogon provides GINA.dll, can customize different Windows login mode.By revising the related function among the GINA, can finish the operation that starts show process.
Subsequently, show process carries out a series of operation.
Step S813 is connected to display.
Step S814 starts Bridge Driver.
Step S815, Mirror is to virtual desktop in binding.
Step S816 starts Mirror and obtains pixel data.
Mirror is the abbreviation of Mirror Driver, and a virtual video card equipment intercepts the screen of Windows under Windows.Can finish binding and startup by Windows GDI to Mirror.
Step S817 calls interruption.
Bridge Driver opens a soft interruption (22H) by interrupting dispatch table (IDT, Interrupt Dispatch Table), and Mirror comes complete call by assembly instruction int 22H.
Step S818 starts the transmission thread, opens interrupters.
Step S819 carries out Interrupt Process.
Step S820 handles rectangle and puts into tabulation.
Step S821 obtains tabulation.
Step S822, port read (Transport Thread).
Step S823 handles tabulation and sends to the display device end according to the position.
The biggest advantage of scheme shown in Figure 8 is that (as Windows login interface) can realize wireless demonstration when entering the os starting interface in system one, and need not could realize after waiting login showing.
Those skilled in the art will appreciate that wireless display system of the present invention can have multiple different embodiment:
Show that one to one for example a PC main frame is to a display.In this case, the UWB data transmission device is connecting main frame and display.
One-to-many shows that for example a PC main frame is to a plurality of displays.In this situation, the UWB host-host protocol realizes that from main frame to each display by multicast or broadcasting certain a plurality of clean cultures also can realize.
Many-one shows that for example a plurality of notebook computers are thrown into a projector.Under this situation, each computer projection is on the some of display device screen, and the on-screen data that sends of each computing machine can not be full frame data but the data that obtain through over-sampling.
Multi-to-multi shows that for example a plurality of notebook computers project in a plurality of projectors simultaneously.This situation is above-mentioned second and the third situation comprehensive.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. a wireless display system comprises main frame and display device, it is characterized in that, also comprises:
The host side data transmission device is used for obtaining video data from this main frame, generates data message and sends display device end data transmitting device to by the UWB mode;
Described display device end data transmitting device, export display device to after being used to receive this data message that transmits in the UWB mode and resolving to video data, wherein, described display device end transmitting device directly utilizes the frame pixel data that transmits to carry out the high speed refresh process;
Described display device end data transmitting device specifically comprises:
The 2nd UWB Transmit-Receive Unit is used to utilize the data message of UWB wireless receiving from the host side data transmission device;
The data protocol unwrapper unit is used for the data message that the 2nd UWB Transmit-Receive Unit receives is separated into on-screen data according to agreement;
Show and receive buffer memory;
Show output unit, be used for receiving buffer memory extraction frame data and carry out framing and then deliver to a D/A converter conversion outputing to display device from described demonstration.
Wherein, described demonstration output unit specifically comprises:
VGA DMA unit is used for the on-screen data of DDR storage is taken out with dma mode from DDR;
VGA control unit is used for controlling the read-write sequence of capable field of various VGA etc.;
The VGA timing unit various sequential that generate the capable field information of VGA, or
Described demonstration output unit is specially GPU, is used for showing control.
2. wireless display system according to claim 1 is characterized in that, described display device end data transmitting device also comprises:
Second control module is used for the Authentication and Key Agreement work that the 2nd UWB Transmit-Receive Unit is controlled and carried out two ends;
3. wireless display system according to claim 1 is characterized in that, described data protocol unwrapper unit is HSDI Control unit.
4. wireless display system according to claim 1 is characterized in that, described data protocol unwrapper unit is the embedded processing chip.
5. according to each described wireless display system of claim 1 to 4, it is characterized in that described display end data transmission device is inserted on the display device or with display device and becomes one outward.
6. wireless display system according to claim 1 is characterized in that, described host side data transmission device comprises:
The video data collecting unit is used for obtaining video data from main frame;
The data protocol packaged unit is used for video data that described video data collecting unit is obtained and breaks into corresponding data message according to the agreement of Network Transmission;
The one UWB Transmit-Receive Unit is used for data message is utilized the wireless display device end data transmitting device of delivering to of UWB;
First control module is used for the Authentication and Key Agreement work that a UWB Transmit-Receive Unit is controlled and carried out two ends.
7. wireless display system according to claim 6 is characterized in that, described video data collecting unit comprises A/D converter; Described data protocol packaged unit comprises ADC control unit; Described first control module comprises HSDI Control unit.
8. wireless display system according to claim 7 is characterized in that, described host side data transmission device is inserted in the video card of main frame or the output interface of graphics controller outward, and directly the output from video card obtains on-screen data.
9. wireless display system according to claim 6 is characterized in that, described host side data transmission device is the data card of main frame, and it obtains on-screen data from the operating system of main frame by main frame.
10. wireless display system according to claim 9 is characterized in that, described host side data transmission device comes the screen printing data by Mirror Driver virtual video card equipment under Windows.
11. wireless display system according to claim 1 is characterized in that, described host side data transmission device also comprises data compression unit, is sent to the data protocol packaged unit after being used for the video data that the video data collecting unit obtains compressed; Described display device end data transmitting device also comprises the data decompression unit, is sent to the demonstration output unit after the on-screen data after being used for the data protocol unwrapper unit unpacked decompresses.
12. wireless display system according to claim 1, it is characterized in that communication protocol between described host side data transmission device and the display device end data transmitting device adopts TCP/IP, Wireless USB, wireless 1394, DVI/HSDI agreement or self-defined host-host protocol.
13. a display device end data transmitting device is characterized in that, comprising:
The 2nd UWB Transmit-Receive Unit is used to utilize the data message of UWB wireless receiving from the host side data transmission device;
Second control module is used for the Authentication and Key Agreement work that the 2nd UWB Transmit-Receive Unit is controlled and carried out two ends;
The data protocol unwrapper unit is used for the data message that the 2nd UWB Transmit-Receive Unit receives is separated into on-screen data according to agreement;
Show and receive buffer memory;
Show output unit, be used for receiving buffer memory extraction frame data and carry out framing and then deliver to a D/A converter conversion outputing to display device from described demonstration;
Wherein, described demonstration output unit specifically comprises:
VGA DMA unit is used for the on-screen data of DDR storage is taken out with dma mode from DDR;
VGA control unit is used for controlling the read-write sequence of capable field of various VGA etc.;
The VGA timing unit various sequential that generate the capable field information of VGA, or
Described demonstration output unit is specially GPU, is used for showing control.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101305722A CN1983216B (en) | 2005-12-14 | 2005-12-14 | Wireless displaying system and wireless data transmitter |
| JP2008543634A JP2009518902A (en) | 2005-12-05 | 2006-12-05 | Wireless display system and method |
| US12/096,002 US8213858B2 (en) | 2005-12-05 | 2006-12-05 | Wireless display system and method thereof |
| DE112006003342.5T DE112006003342B4 (en) | 2005-12-05 | 2006-12-05 | Wireless display system and method therefor |
| PCT/CN2006/003283 WO2007065350A1 (en) | 2005-12-05 | 2006-12-05 | A wireless display system and method thereof |
| GB0810208A GB2448429B (en) | 2005-12-05 | 2006-12-05 | Wireless display system and method thereof |
| JP2008544743A JP5148505B2 (en) | 2005-12-14 | 2006-12-14 | Display system and method |
| US12/086,166 US7788412B2 (en) | 2005-12-14 | 2006-12-14 | Display system and method |
| DE112006003371T DE112006003371B4 (en) | 2005-12-14 | 2006-12-14 | Display system and method |
| GB0811363A GB2447185B (en) | 2005-12-14 | 2006-12-14 | Display system and method |
| PCT/CN2006/003416 WO2007068211A1 (en) | 2005-12-14 | 2006-12-14 | Displaying system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101305722A CN1983216B (en) | 2005-12-14 | 2005-12-14 | Wireless displaying system and wireless data transmitter |
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| CN1983216A CN1983216A (en) | 2007-06-20 |
| CN1983216B true CN1983216B (en) | 2010-08-11 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458749C (en) * | 2007-08-03 | 2009-02-04 | 北京派瑞根科技开发有限公司 | Computer design technology and computer system based on radio communication technology |
| CN101572697B (en) * | 2008-04-29 | 2013-10-02 | 联想(北京)有限公司 | Computer, external device thereof and radio transmission method of service data |
| CN101867400A (en) * | 2010-04-26 | 2010-10-20 | 南京熊猫数字化技术开发有限公司 | Display terminal realization system and method thereof based on non-compressed wireless high-definition transmission technology |
| CN102157141B (en) * | 2010-08-09 | 2013-09-11 | 深圳市大象视界科技有限公司 | LED large screen display control system and method |
| CN103312873B (en) * | 2012-03-12 | 2015-07-29 | 联想(北京)有限公司 | A kind of data processing method and mobile terminal |
| CN104717397B (en) * | 2013-12-12 | 2018-12-14 | 联想(北京)有限公司 | A kind of image processing method and electronic equipment |
| JP6552024B2 (en) * | 2016-03-04 | 2019-07-31 | Ｎｅｃディスプレイソリューションズ株式会社 | Data transmission system, projector, data transmission method, and electronic device |
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