CN102854717B - Projector, electronic equipment and using methods on projector - Google Patents
Projector, electronic equipment and using methods on projector Download PDFInfo
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- CN102854717B CN102854717B CN201210295390.0A CN201210295390A CN102854717B CN 102854717 B CN102854717 B CN 102854717B CN 201210295390 A CN201210295390 A CN 201210295390A CN 102854717 B CN102854717 B CN 102854717B
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Abstract
The embodiment of the invention provides a projector, electronic equipment and using methods of the projector and electronic equipment. The projector comprises a transmission unit, a main control unit and a projection unit, wherein the transmission unit is suitable for establishing wireless connection with the external electronic equipment; the main control unit is suitable for controlling the transmission unit to receive the mirror image of a display screen of the external electronic equipment; and the projection unit is suitable for projecting the received mirror image. Through the technical scheme provided by the embodiment of the invention, the content on the display screen of the electronic equipment can be conveniently and synchronously displayed through the projector; and without a connection wire, the cost of using and maintaining the projector is reduced.
Description
Technical field
The present invention relates in general to projector, and particularly, the method relating to projector, the electronic equipment be connected with projector and use on projector and electronic equipment respectively.
Background technology
Increasing people has been had to use smart mobile phone at present, the electronic equipment such as panel computer and computing machine.These equipment have networking speed fast mostly, and large storage area also can from the various information of such as the Internet download.But it is because the display screen of these electronic equipments is less than normal, very inconvenient when sharing the content showing screen display with around friend/colleague.On the other hand, if when being shown the content on the display screen of electronic equipment by conventional projection display device, need by Wireline and other these electronic equipments (such as, smart machines, as computer/mobile phone/net book etc.) be connected, to realize Signal transmissions projection.Because needs bury connecting line in advance in ground and body of wall, there is connecting line cost height and carry the drawbacks such as inconvenience.And also bother very much in follow-up maintenance with when changing layout.
Some projector of today has Wifi function, but its use has limitation, is only limitted to online.When being connected with other smart machines outside, also need to be connected by connecting line, and different from the connecting line of different intelligent equipment, such as need to use USB line/AV line/VGA line/HDMI wire/Apple industrial siding etc.These connecting lines are of a great variety and carry inconvenience.Meanwhile, for minitype projection machine, miscellaneous connecting line also brings the problem of interface compatibility.
Summary of the invention
The present invention is intended to solve the problem at least partially that the content on the display screen of above-mentioned use projector display electronic equipment is brought.
According to an aspect of the present invention, provide a kind of projector, comprising: transmission unit, be suitable for setting up wireless connections with external electronic device; Main control unit, is suitable for controlling the mirror image that described transmission unit receives the display screen of described external electronic device; And projecting cell, the mirror image be suitable for receiving projects.
According to a further aspect in the invention, provide a kind of electronic equipment, comprising: display screen; Linkage unit, is suitable for setting up wireless connections with projector; Mirror image acquiring unit, is suitable for the mirror image obtaining described display screen, is sent to project to projector by described linkage unit; And processing unit, be suitable for controlling described linkage unit and described mirror image acquiring unit.
According to a third aspect of the invention we, provide a kind of method used on projector, comprising: set up wireless connections with external electronic device; Receive the mirror image of the display screen of described external electronic device; And the mirror image received is projected.
According to a forth aspect of the invention, provide a kind of method used on an electronic device, comprise and set up wireless connections with projector; Obtain the mirror image of the display screen of described electronic equipment, send to project to projector.
By above technical scheme, the content on the display screen of simultaneous display electronic equipment (such as, the smart machine such as computer/mobile phone/net book) easily can be carried out by projector.And owing to not needing connecting line, reduce the cost of projector operation and maintenance.
Accompanying drawing explanation
By reference to the accompanying drawings embodiments of the present invention are described in detail, the present invention can be understood better, wherein:
Fig. 1 shows the schematic diagram of wireless display according to an embodiment of the invention;
Fig. 2 shows the schematic block diagram of projector according to an embodiment of the invention;
Fig. 3 shows the schematic block diagram of electronic equipment according to an embodiment of the invention;
Fig. 4 shows and uses projector to carry out the process flow diagram of the mirror image of the display screen of projection electronics according to an embodiment of the invention;
Fig. 5 show according to an embodiment of the invention projector with the process flow diagram carrying out connecting from equipment mode;
Fig. 6 shows mirror image according to an embodiment of the invention and obtains the schematic diagram of flow process;
Fig. 7 shows according to embodiments of the invention, the process flow diagram of the aftertreatment flow process of electronic equipment end after transmission mirror image; And
Fig. 8 shows the design sketch of wireless display according to an embodiment of the invention.
Embodiment
With reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail, eliminating in the course of the description is unnecessary details and function for the present invention, causes obscure to prevent the understanding of the present invention.In whole accompanying drawing, use identical invoking marks for similar or corresponding element.
As mentioned above, owing to needing to be connected with projector by electronic equipment by connecting line in prior art, make use projector to the content on the display screen showing electronic equipment exist connecting line cost high and carry inconvenience problem.
In order to solve this problem, at least some embodiment of the present invention proposes a kind of projector.This projector comprise with external electronic device (such as, electronic equipment or the smart machines such as computer/mobile phone/net book) set up the transmission unit of wireless connections, the main control unit receiving the mirror image of the display screen of external electronic device for controls transfer unit and the projecting cell that the mirror image received is projected.
Projector can also comprise heat-sink unit, makes it possible to the working temperature being reduced projector (particularly projecting cell) by heat radiation, to extend the life-span of projector.Projector also can comprise driving circuit, and driving circuit can provide driving for main control unit and projector.Main control unit can be the CPU of projector, also can be any general or special purpose treatment circuit be arranged in projector.
At least some embodiment of the present invention also proposed a kind of electronic equipment.This electronic equipment comprises display screen, be suitable for the linkage unit setting up wireless connections with projector, be suitable for the mirror image of the display screen obtaining electronic equipment, and sent to carry out the mirror image acquiring unit projected to projector by linkage unit, and be suitable for the processing unit of control linkage unit and mirror image acquiring unit.
The storer of the data that electronic equipment uses during can also comprising the process for store electrons equipment and program, and provide the power supply of power for electronic equipment.According to specific circumstances, storer can be the storer of any type, such as RAM, ROM, hard disk etc.Power supply can be battery, adapter or other can provide the power circuit of normal work power demand for electronic equipment.Similarly, the processing unit of electronic equipment can be the CPU of electronic equipment or any general or special purpose treatment circuit that is arranged in electronic circuit.
At least some embodiment of the present invention also proposed a kind of method used on projector.The method comprises sets up wireless connections with external electronic device; Receive the mirror image of the display screen of external electronic device; And the mirror image received is projected.
At least some embodiment of the present invention also proposed a kind of method used on an electronic device.The method comprises sets up wireless connections with projector; Obtain the mirror image of the display screen of described electronic equipment, send to project to projector.
Term " mirror image " in the present invention refers to image that is synchronous with the display on the display screen of electronic equipment or near-synchronous.
The content come by projector on the display screen of simultaneous display electronic equipment easily can be realized by above technical scheme, and owing to not needing connecting line, reduce the cost of projector operation and maintenance.
Fig. 1 shows the schematic diagram of wireless display according to an embodiment of the invention.As shown in Figure 1.According to projector of the present invention can with the electronic equipment of multiple outside, such as mobile phone, flat computer and notebook carry out wireless connections, and are projected by the displaying contents on these equipment.Although it will be appreciated by those skilled in the art that in Fig. 1 and use WiFi agreement to connect projector and electronic equipment, but other also can be used can to set up the agreement of WLAN (wireless local area network), such as, in bluetooth, infrared, TransferJet any one.In addition, although the electronic equipment shown in Fig. 1 is removable or portable electronic equipment, but the present invention also can be applied to fixing electronic equipment, such as, and desktop computer etc.
The simplified block diagram of the circuit structure of the projector shown in Fig. 1 has been shown in Fig. 2.
Projector can comprise main control unit 210, transmission unit 220 and projecting cell 260.Main control unit 210 can control the work of each assembly in projector.Projector is connected with external unit or network by transmission unit 220.The signal received via transmission unit 220 can be projected on projection screen (not shown) by projecting cell 260.In an example of the present invention, projecting cell 260 can comprise LCoS (liquid crystal on silicon) ray machine.LCoS ray machine adopts LED light source, and produces red/Huang/green three coloured light and project.But the present invention is not limited thereto, in other embodiments of the invention, also can adopt the ray machine of other types, such as DLP (digital light process) ray machine, or adopt the ray machine etc. of LASER Light Source.
Projector can also comprise storer 230, driving circuit 240, power supply unit 250, heat-sink unit 270, video interface 280 etc.Storer 230 can be used to all programs and the data that store main control unit 210, also may be used for the data that storage transmission unit 220 receives or be about to send.Driving circuit 240 comprises LCoS driving circuit and LED drive circuit (not shown) respectively, is connected respectively to main control unit 210 and projecting cell 260 and provides driving for it.Power supply unit 250 can comprise accumulator and adapter (not shown).Adapter can adopt any power interface (such as, USB interface), and is connected with external power source directly or indirectly.Accumulator can be directly each assembly power supply of projector, and can charge via adapter.Heat-sink unit 270 can comprise fan and heat radiator etc., reduces the working temperature of projector (particularly the ray machine of projecting cell 260) by heat radiation, to extend the life-span of projector and to ensure the normal operation of projector.Video interface 280 can provide various cable video interface for projector, to be connected with external unit by wired mode, provides HD video picture.
Alternatively, projector can also comprise other assemblies unshowned in Fig. 2, such as, various structures on shell and shell.
When projector is started shooting, whether transmission unit 220 can detect exists available WLAN (wireless local area network) (WLAN).If existed, request is connected to this WLAN (wireless local area network).Otherwise transmission unit 220 sets up new WLAN (wireless local area network).
When the electronic equipment with outside connects, if electronic equipment is not connected to other wireless networks, and can connect the WLAN (wireless local area network) (being labeled as WLAN (wireless local area network) A) of projector place (or created), then this electronic equipment can be directly connected to WLAN (wireless local area network) A.But, if electronic equipment has been connected to existing wireless network (being schematically labeled as wireless network B), then projector can be set to from equipment mode by electronic equipment, and network identity (such as, network name etc.) and/or the access code of wireless network B are set to projector.The main control unit 210 controls transfer unit 220 of projector is switched to according to the setting of electronic equipment and works from equipment mode, and searches out wireless network B according to set network identity and/or access code, connects with wireless network B.
After connecting with wireless network B, main control equipment 210 can arrange the IP address of projector according to the IP address assignment principle of wireless network B.This IP address can pre-establish, such as, wireless network B can specify in advance certain IP address field or even certain concrete IP address be used as the IP address of projector, or can be Random assignment.Then, transmission unit 220 can use set IP address to broadcast to each equipment in wireless network B, is the IP address of projector to indicate this IP address.Thus smart mobile phone can pass through to receive broadcast and the IP address obtaining projector from broadcast, sets up point to point connect with projector.
As alternative, in wireless network B, such as specified concrete IP address as the IP address of projector, and when this appointment is known to each equipment in wireless network B, without the need to pointing out that in broadcast this IP address is the IP address of projector.Electronic equipment, after receiving the broadcast from the IP address of projector, can go out in wireless network B to there is available projector by automatic decision, and sets up point to point connect with this projector.Even in some specific examples, electronic equipment can according to the specified IP address for projector, in wireless network B, find projector (such as, the mode by ping) with fixed time interval, initiatively set up point to point connect with this.
After connecting with electronic equipment, the transmission unit 220 of projector receives the mirror image of the display screen of this electronic equipment from electronic equipment.This mirror image is converted to driving circuit 240 by main control unit 210 can RGB 888 signal of identification, and sends to projecting cell 260, by the light engine projection of projecting cell 260 on the projection screen.In projection process, the focusing structure of projecting cell 260 can be regulated obtain picture clearly.
At the end of projection, projecting cell 260 can be controlled by main control unit 210 and stop projection, or controls transfer unit 220 disconnects and the connection of wireless network B (or electronic equipment) stops projecting.
In the above description, to be connected with an electronic equipment with projector and to be exemplarily described.But the present invention is not limited thereto, in other embodiments of the invention, projector can be connected (situation such as shown in Fig. 1) simultaneously with multiple electronic equipment.In the case, the same time can be selected to project the mirror image (be equal to above composition graphs 2 describe embodiment) of display screen of a certain equipment, or the mirror image of display screen of the multiple/all devices that simultaneously projected by the form of split screen or picture-in-picture.
Fig. 3 shows the schematic block diagram of the structure of electronic equipment according to an embodiment of the invention.This electronic equipment can be smart mobile phone, flat computer, notebook, PDA or other equipment with certain computing power and display capabilities.When electronic equipment is smart mobile phone.This smart mobile phone can adopt various operating system, such as Android system, blackberry, blueberry system, iOS system, Windows system, Mac system or other with or be about to use operating system.
Electronic equipment in Fig. 3 can comprise display screen 380 for showing the media content such as image, video, control the processing unit 310 of each assembly of electronic equipment and the linkage unit 320 for connecting with the external unit such as projector and wireless network B or network.When electronic equipment (such as smart mobile phone) needs to use projector to carry out the display of display screen, processing unit 310 can search for the WLAN (wireless local area network) A of projector place (or set up) by linkage unit 320.If now electronic equipment does not connect with other networks (such as, wireless network B), then processing unit 310 can be directly connected to the WLAN (wireless local area network) A at projector place by linkage unit 320.If electronic equipment has now been connected to such as wireless network B, linkage unit 320 can disconnect the connection with wireless network B, and connects with WLAN (wireless local area network) A.Then, processing unit 310 can access the destination address (such as, 192.168.100.1) of the gateway of WLAN (wireless local area network) A by linkage unit 320.In an example of the present invention, this access can be realized by the form of accessed web page.Projector can be set to from equipment mode by setup of attribute unit 350, and arranges network identity (such as, network name) and/or the password of the wireless network B that it will be accessed to projector.Next, processing unit 310 can disconnect the connection with WLAN (wireless local area network) A by control linkage unit 320, and is connected to wireless network B.Processing unit 310 can intercept broadcast in wireless network B, to obtain the IP address of the projector that projector is arranged after the network identity arranged according to setup of attribute unit 350 and/or password are connected to wireless network B, this IP address is used to set up the point to point connect with projector by linkage unit 320.
As mentioned above, in wireless network B, specified concrete IP address as the IP address of projector, and when this appointment is known to each equipment (electronic equipment in such as this example) in wireless network B, projector is without the need to pointing out that this IP address is the IP address of projector in the broadcast.The linkage unit 320 of electronic equipment is after receiving the broadcast from the IP address of projector, and processing unit 310 can go out in wireless network B to there is available projector by automatic decision, and sets up point to point connect by linkage unit 320 and this projector.Even in examples more of the present invention, electronic equipment according to the specified IP address for projector, can find projector with fixed time interval in wireless network B, initiatively sets up point to point connect with this.
By above connected mode, electronic equipment, while carrying out the projection of radio connection with projector, does not affect existing network and connects (such as, the above-mentioned connection with wireless network B) or new network connects, such as new internet connection.
After setting up point to point connect with projector, electronic equipment obtains and sends the mirror image of the display on the display screen 380 of electronic equipment to projector.To be described in detail to this below.In an example of the present invention, the mirror image acquiring unit 330 of electronic equipment can access the FrameBuffer buffer memory of the operating system (not shown) of electronic equipment, to obtain the lower piece image be about in the display screen display of electronic equipment, and obtain the resolution of this image.It will be understood to those of skill in the art that in the operating system of other types, the mirror image acquiring unit 330 of electronic equipment also can from storage unit like FrameBuffer cache class obtain the lower piece image that will show.Processing unit 310 can determine whether the resolution of this image is required resolution (such as 800*600).If resolution is 800*600, can be then the form (such as PNG form) being suitable for projector process by compression of images by compression unit 340, send (such as, using ICP/IP protocol to send) to projector via linkage unit 320.If resolution is not 800*600, such as, suppose it is H*W, then by compression unit 340, the high H of this image can be set to 800, by formula W=H*600/800, its width is compressed, and being then PNG form by compression of images, then send to projector.When compressing in the electronic device, correspondingly need in projector side to decompress to the image compressed.This function can realize in the main control unit 210 of projector, or is realized by special software or hardware circuit.
The information such as the image obtained above and resolution thereof can be stored in storage unit 360.
It will be appreciated by those skilled in the art that above is only an example of the process obtaining mirror image according to an embodiment of the invention, the present invention is not limited thereto.Such as, mirror image acquiring unit 330 can carry out direct sectional drawing to obtain the picture signal of near-synchronous to the image on the display screen of electronic equipment, instead of obtains from the FrameBuffer buffer memory of operating system.In some embodiments of the invention, mirror image acquiring unit 330 can obtain screenshot capture by the frequency of 30Hz.It should be appreciated by those skilled in the art that the frequency that also can use other.In addition, required resolution may not be 800*600, and can be other resolution, and as 1024*768,1280*720 etc., and therefore compression formula also correspondingly changes.The compressed format of image also can be not limited to PNG form, and can be that projector can receive and any other form processed, such as JPG, JPEG, BMP etc.
Counter 370 can also be comprised according to an embodiment of the invention in electronic equipment.Counter 370 can count to the time after described projector sends mirror image linkage unit 320.After linkage unit 320 receives the confirmation to mirror image from projector, send lower piece image.If also do not received the confirmation more than 50 milliseconds, start counter 370, often do not receive the confirmation information more than 50 milliseconds, counter 370 can increase progressively 1.If in 1 second, counter 370 lower than 10, then resets when next second starts by the value of counter 370, and again carries out above counting process.If the value of counter 370 was greater than 10 in 1 second, then processing unit 310 points out user radio network B to be unsuitable for projector.Alternatively, counter 370 can start in any stage of mirror image acquisition process, and without the need to also just starting receiving the confirmation information from projector more than 50 milliseconds.In addition, the incremental interval of counter 370 also can be not limited to 50 seconds, and can get other any value as required, such as, and 100 milliseconds.The threshold value of counter 370 also can be not limited to 10, but can get other any suitable value, as 5 or 15.
Above when describing according to projector architecture of the present invention about Fig. 2, stop projection by the operation of projector side.But in some embodiments of the invention, also projection can be stopped by the operation of electronic equipment side.Such as, can stop projecting with the connection of projector by linkage unit 320 disconnection in electronic equipment.
Above referring to figs. 2 and 3 the example describing projector and electronic equipment according to an embodiment of the invention in detail.But, it should be appreciated by those skilled in the art that in Fig. 2 and Fig. 3 and illustrate only understanding the helpful assembly of the present invention.Projector and the electronic equipment of actual use can comprise more or less assembly as required.Such as, the electronic equipment shown in video interface 280, Fig. 3 that can not comprise in Fig. 2 can also comprise power supply module or provide the assembly etc. of audio frequency and/or Video processing.Or the function of each assembly shown in Fig. 2 and Fig. 3 also can realize in more or less assembly.Such as, in Fig. 3, the function of mirror image acquiring unit 330, compression unit 340 and setup of attribute unit 350 etc. can realize in processing unit 310.In addition, the partial function in Fig. 2 and Fig. 3 also can be realized by the form of specialized hardware or software program.
Below with reference to Fig. 4, based on the schematic block diagram of above-mentioned projector and electronic equipment, set forth in the embodiment of the present invention and use projector to carry out the flow process of the mirror image of the display screen of projection electronics.In step S401, wireless connections set up by projector and electronic equipment.When electronic equipment does not access other wireless networks, electronic equipment can come by the WLAN (wireless local area network) accessing projector place directly to connect with projector.If the current wireless network (wireless network B as escribed above) being connected to other of electronic equipment, electronic equipment can be connected by the mode shown in Fig. 5 and projector.
Fig. 5 show according to an embodiment of the invention projector at the process flow diagram carrying out connecting under equipment mode.First, in step S501, the transmission unit 220 in projector can set up WLAN (wireless local area network) A.Such as, when using WiFi agreement, can be started by WiFi routing mode and setting up WLAN (wireless local area network) A.In step S502, the processing unit 310 in electronic equipment can disconnect and the wireless connections of wireless network B by control linkage unit 320, and in step S503, be connected to the WLAN (wireless local area network) A that projector sets up.In step 504, the processing unit 310 in electronic equipment can control linkage unit 320 access destination IP:192.168.100.1, and this Target IP can be the Target IP of the gateway of WLAN (wireless local area network) A, can present it arrange the page by the form of webpage.In step S505, by setup of attribute unit 350, projector can be set to from equipment (such as, WiFi is from equipment), and network identity and/or the access code of the network (that is, wireless network B) that projector will be accessed are set.Then, in step S506, setup of attribute unit 350 can be preserved and exit this and arrange the page.Afterwards, in step s 507, the main control unit 210 in projector can restart transmission unit 220, makes projector according to the setting of electronic equipment with from equipment mode work.In step S508, the main control unit 210 of projector can find corresponding network (that is, wireless network B) according to set network identity and/or access code, and is connected with wireless network B by transmission unit 220.In step S509, the main control unit 210 of projector can arrange the IP address of projector according to the IP address assignment principle of wireless network B.This IP address can be preassigned, such as, wireless network B can specify in advance certain IP address field or even certain concrete IP address be used as the IP address of projector, or can be Random assignment.In step S510, the main control unit 210 of projector can use set IP address, broadcasts specific message, indicate it to be projector by transmission unit 220 with fixing interval (such as, 5 seconds).In step S511, the processing unit 310 of electronic equipment can disconnect the connection with WLAN (wireless local area network) A by control linkage unit 320, again connects with wireless network B.Although in Figure 5 step S511 is illustrated after step S510, however it should be appreciated by those skilled in the art that step S511 also can between step S506 to S510 any one perform.After being connected to wireless network B, in step S512, the processing unit 310 of electronic equipment can broadcast message in monitoring wireless network B, to obtain the IP address of projector.Then, in step S513, the processing unit 310 of electronic equipment can use the IP address of the projector obtained to set up the point to point connect with projector via linkage unit 320.
As mentioned above, in wireless network B, specified concrete IP address as the IP address of projector, and when this appointment is known to each equipment (electronic equipment in such as this example) in wireless network B, without the need to specifying this broadcast from projector in the broadcast that step S510 sends, and the IP address due to projector is that electronic equipment is known, therefore in step s 12 also without the need to additionally obtaining the IP address of projector.In addition, in examples more of the present invention, electronic equipment can also according to the specified IP address for projector, in wireless network B, projector is found with fixed time interval, initiatively set up point to point connect with this, and therefore above step S10 and S12 can be optional in this case.
Return Fig. 4 now, next, in the step 402 of Fig. 4, the mirror image acquiring unit 330 of electronic equipment obtains the mirror image of the display on the display screen 380 of electronic equipment.The exemplary process diagram obtaining mirror image is according to an embodiment of the invention shown, i.e. the detailed description of step 402 in Fig. 6.
As shown in Figure 6, in step s 601, the mirror image acquiring unit 330 of electronic equipment can access the FrameBuffer buffer memory of the operating system of electronic equipment, obtains the lower piece image be about in the display screen display of electronic equipment, and obtains the resolution of this image.In step S602, the processing unit 310 of electronic equipment can determine whether the resolution of this image is required resolution (such as 800*600).If resolution is 800*600, then can be the form (such as PNG form) being suitable for projector process by compression of images by compression unit 340 in step s 604.If resolution is not 800*600, then before step S604, needing compression of images in step S603 by compression unit 340 is the resolution of 800*600.Such as, suppose it is H*W, then by compression unit 340, the high H of this image can be set to 800, by formula W=H*600/800, its width be compressed.As mentioned above, above example is only schematic.Such as, in step s 601, can carry out by the image on the display screen of mirror image acquiring unit 330 pairs of electronic equipments the picture signal that direct sectional drawing obtains near-synchronous, instead of obtain from the FrameBuffer buffer memory of operating system.Such as, the required resolution in step S602 also can be other resolution, as 1024*768,1280*720 etc.In addition, such as, can be also that other are suitable for the form of projector process by compression of images in step s 604, instead of PNG form.
It is pointed out that the term " compression " broadly understood and use in the present invention.In above-mentioned example, when the resolution of obtained image is greater than required resolution (such as 800*600), such as, when the resolution of the image obtained is 1024*768, can be 600 by its width compression by formula W=H*600/800.Such as, but when the resolution of obtained image is less than required resolution, when being 480*360, the term " compression " used in the present invention refers to and the width of obtained image is expanded to 600.
Again return Fig. 4, in the step S403 of Fig. 4, electronic equipment can send by linkage unit 320 mirror image (such as, using ICP/IP protocol to send) obtained to projector.In step s 404, projector can project to the mirror image received.
Alternatively, after transmission mirror image, electronic equipment place can also carry out aftertreatment flow process, and whether the wireless network be connected to check projector is applicable to.This aftertreatment flow process has been shown in Fig. 7.As shown in Figure 7, in step s 701, the processing unit 310 of electronic equipment can judge whether to receive the confirmation from projector.If received in 50 milliseconds, then processing unit 310 can judge to send image success in step S702, and in step S703, can send next mirror image by linkage unit 320, and again gets back to step S701.But if do not receive the confirmation from projector in step s 701 in 50 milliseconds, flow process proceeds to step S704.In step S704, start counter 370, in step S705, processing unit 310 can judge to start counter 370, and whether the time arrives 1 second afterwards, if do not had, gets back to the confirmation of step S701 wait-receiving mode from projector.If often also do not received the confirmation more than 50 milliseconds, counter 370 can increase progressively 1.If the judgement time has reached 1 second in step S705, in step 760, processing unit 310 can judge whether counter 370 exceedes threshold value, such as, whether in 1 second, is greater than 10.If be not more than 10 in 1 second, then in step S707, counter 370 can be reset, and turn back to step S701.If be greater than 10 in 1 second, then processing unit 310 can point out user radio network B to be unsuitable for projector in step 708, terminates this aftertreatment flow process.
Fig. 8 shows the actual effect figure carrying out the mirror image of the display screen of projection electronics according to the use projector of the embodiment of the present invention.As shown in Figure 8, technical scheme of the present invention achieves wirelessly to the live fluoroscopic of the displaying contents on electronic equipment.And owing to not needing connecting line, reduce the cost of projector operation and maintenance.
Above-described embodiment to be interpreted as schematic examples more of the present invention.It will be understood by those skilled in the art that when not deviating from scope of the present invention, various amendment, merging and change can be carried out to embodiment.Particularly, as long as technically possible, the different piece solution that merge in different embodiment can be configured by other.Then, scope of the present invention is defined by the following claims.
Claims (20)
1. a projector, comprising:
Transmission unit, is suitable for setting up wireless connections with external electronic device;
Main control unit, is suitable for controlling the mirror image that described transmission unit receives the display screen of described external electronic device; And
Projecting cell, the mirror image be suitable for receiving projects,
Wherein, described external electronic device can join WLAN (wireless local area network), and if described external electronic device be connected to other wireless networks except described WLAN (wireless local area network):
Described transmission unit is also adapted to operate in from equipment mode, and receives network identity and/or the access code of other wireless networks described that described external electronic device is arranged;
Described main control unit is also suitable for controlling described transmission unit and finds other wireless networks described according to the network identity received, and sets up with other wireless networks described and be connected.
2. projector according to claim 1, wherein, described transmission unit is also suitable for setting up described WLAN (wireless local area network).
3. projector according to claim 1, wherein, described main control equipment is also suitable for the IP address arranging projector in connection procedure according to the IP distribution principle of other wireless networks described, fixed time broadcast is carried out to other wireless networks described in the IP address that described transmission unit is also suitable for set by use, to indicate described IP address to be the IP address of projector, make described external electronic device can obtain described IP address and set up point to point connect with described projector.
4. projector according to claim 3, wherein, described IP address can be the IP address of specially appointed IP address or Random assignment.
5. projector according to claim 1, also comprises storer, is suitable for the network identity and the access code that store described mirror image and other wireless networks described received by described transmission unit.
6. projector according to claim 1, wherein, described transmission unit uses at least one in WiFi, infrared, TransferJet, DLNA interface protocol.
7. projector according to claim 1, also comprises:
Driving circuit, is connected to described main control unit and described projecting cell, is suitable under the control of described main control unit for described projecting cell provides driving;
Power supply unit, each assembly be suitable in projector provides power; And
Heat-sink unit, is suitable for the working temperature being reduced described projecting cell by heat radiation.
8. an electronic equipment, comprising:
Display screen;
Linkage unit, is suitable for setting up wireless connections with projector;
Mirror image acquiring unit, is suitable for the mirror image obtaining described display screen, is sent by described linkage unit to described projector, to project; And
Processing unit, is suitable for controlling described linkage unit and described mirror image acquiring unit,
Wherein, when described electronic equipment has been connected to the external network except the WLAN (wireless local area network) that described projector is set up, described processing unit has been suitable for controlling described linkage unit and has disconnected the connection with described external network, and connects with described WLAN (wireless local area network); Described electronic equipment also comprises:
Setup of attribute unit, being suitable for the setup of attribute of described projector is from equipment, and arranges mark and/or the access code of described external network to described projector;
Described processing unit is also suitable for controlling described linkage unit and disconnects the connection with described WLAN (wireless local area network), again be connected in described external network, monitor the broadcast in described external network, to obtain the IP address arranged after described projector is connected to described external network according to the mark of described external network and/or access code, and control described linkage unit and set up point-to-point connection with described projector.
9. electronic equipment according to claim 8, wherein, when described electronic equipment is not connected to any network time, described processing unit is suitable for controlling the WLAN (wireless local area network) that described linkage unit is directly connected to the foundation of described projector.
10. electronic equipment according to claim 8, wherein, described mirror image acquiring unit is also suitable for from the FrameBuffer buffer memory of the operating system of described electronic equipment, obtaining the lower piece image be about in the display screen display of electronic equipment, to obtain the resolution of described lower piece image;
Described electronic equipment also comprises:
Compression unit, being suitable for when the resolution that described processing unit judges described lower piece image is not required resolution, be required resolution, and boil down to is suitable for the form of described projector process by next width compression of images described.
11. electronic equipments according to claim 8, also comprise:
Storage unit, for storing the mirror image that described mirror image acquiring unit obtains.
12. electronic equipments according to claim 8, also comprise:
Counter, is suitable for counting to the time after described projector sends mirror image described linkage unit; And
Described processing unit is suitable for determining whether described external network is suitable for described projector according to the count value of described counter.
13. 1 kinds of methods used on projector, comprising:
Wireless connections are set up with external electronic device;
Receive the mirror image of the display screen of described external electronic device;
The mirror image received is projected;
Set up the WLAN (wireless local area network) that described external electronic device can add;
When described external electronic device has been connected to other wireless networks except described WLAN (wireless local area network):
Be operated in from equipment mode, and receive network identity and/or the access code of other wireless networks described that described external electronic device is arranged;
Find other wireless networks described according to the network identity that receives, and set up with other wireless networks described and be connected.
14. methods according to claim 13, wherein, also comprise:
The IP address of projector is set according to the IP distribution principle of other wireless networks described in connection procedure, set IP address is used to carry out fixed time broadcast to other wireless networks described, to indicate described IP address to be the IP address of projector, make described external electronic device can obtain described IP address and set up point to point connect with described projector.
15. methods according to claim 14, wherein, described IP address can be the IP address of specially appointed IP address or Random assignment.
16. methods according to claim 13, wherein, the foundation of described wireless connections uses at least one in WiFi, infrared, TransferJet, DLNA interface protocol.
17. 1 kinds of methods used on an electronic device, comprising:
Wireless connections are set up with projector;
Obtain the mirror image of the display screen of described electronic equipment, send to project to projector,
Wherein, when described electronic equipment has been connected to the external network except the WLAN (wireless local area network) that described projector is set up:
Disconnect the connection with described external network, and connect with described WLAN (wireless local area network);
Be from equipment by the setup of attribute of described projector, and mark and/or the access code of described external network are set to described projector;
Again be connected in described external network, monitor the broadcast in described external network, to obtain the IP address arranged after described projector is connected to described external network according to the mark of described external network and/or access code, and set up point-to-point connection with described projector.
18. methods according to claim 17, wherein, when described electronic equipment is not connected to any network time, are directly connected to the WLAN (wireless local area network) that described projector is set up.
19. methods according to claim 17, also comprise:
From the FrameBuffer buffer memory of the operating system of electronic equipment, obtain the lower piece image be about in the display screen display of electronic equipment, and obtain the resolution of described lower piece image;
When the resolution of described lower piece image is not required resolution, be required resolution by next width compression of images described, and boil down to is suitable for the form of described projector process.
20. methods according to claim 17, also comprise:
The time that projector described in subtend sends after mirror image counts; And
Determine whether described external network is suitable for described projector according to count value.
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| CN201210295390.0A CN102854717B (en) | 2012-08-20 | 2012-08-20 | Projector, electronic equipment and using methods on projector |
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| CN201210295390.0A CN102854717B (en) | 2012-08-20 | 2012-08-20 | Projector, electronic equipment and using methods on projector |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103338139B (en) * | 2013-06-18 | 2017-03-08 | 华为技术有限公司 | Multi-screen interaction method, device and terminal device |
| CN104424794A (en) * | 2013-09-11 | 2015-03-18 | 深圳市云立方信息科技有限公司 | Data transmission device and data transmission method thereof |
| CN103957437A (en) * | 2014-04-26 | 2014-07-30 | 吉安英佳电子科技有限公司 | Wireless servo portable high-integration digital multimedia all-in-one machine |
| CN104159057A (en) * | 2014-06-12 | 2014-11-19 | 惠州Tcl移动通信有限公司 | Wireless projection system and wireless projector |
| JP2016039557A (en) * | 2014-08-08 | 2016-03-22 | 株式会社リコー | Projector, projection system, and projection method |
| CN105376509A (en) * | 2014-08-28 | 2016-03-02 | 宇龙计算机通信科技(深圳)有限公司 | Communication device, projection system and projection method |
| CN105842964A (en) * | 2015-01-14 | 2016-08-10 | 中强光电股份有限公司 | Projection system, projection device, and projection device operation method |
| JP6547335B2 (en) * | 2015-03-05 | 2019-07-24 | セイコーエプソン株式会社 | Display device, display system, and control method of display device |
| CN104994319B (en) * | 2015-06-12 | 2018-11-09 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN104917987A (en) * | 2015-07-03 | 2015-09-16 | 广景视睿科技（深圳）有限公司 | Projection control method and projection apparatus |
| JP6724318B2 (en) * | 2015-09-08 | 2020-07-15 | セイコーエプソン株式会社 | Projector and projector control method |
| CN106131145B (en) * | 2016-06-29 | 2019-04-19 | 成都中科创达软件有限公司 | A kind of projecting method of mobile terminal |
| CN106303681B (en) * | 2016-10-11 | 2020-08-18 | 何志宏 | Projection method and device |
| CN108337667B (en) * | 2018-02-12 | 2020-12-01 | 武汉卡比特信息有限公司 | Device and method for Bluetooth pairing of mobile phone and vehicle-mounted display terminal in screen projection state |
| CN111447691A (en) * | 2020-03-30 | 2020-07-24 | 湖南新亚胜光电股份有限公司 | L ED intelligent display screen multimode wireless communication method |
| CN112437284A (en) * | 2020-11-23 | 2021-03-02 | 海信视像科技股份有限公司 | Projection picture correction method, terminal equipment and display equipment |
| CN113050903A (en) * | 2021-03-31 | 2021-06-29 | 联想(北京)有限公司 | Electronic device and data processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1430409A (en) * | 2001-12-25 | 2003-07-16 | 精工爱普生株式会社 | Radio control system and method for projector |
| KR20060039791A (en) * | 2004-11-03 | 2006-05-09 | 삼성전자주식회사 | Wireless projector system |
| CN1904717A (en) * | 2005-07-29 | 2007-01-31 | 鸿富锦精密工业（深圳）有限公司 | Switching system for projector |
| JP2008090563A (en) * | 2006-09-29 | 2008-04-17 | Brother Ind Ltd | Projection device |
| CN201535856U (en) * | 2009-06-23 | 2010-07-28 | 金纯� | Bluetooth projector |
| TW201028787A (en) * | 2009-01-23 | 2010-08-01 | Univ Nan Kai Technology | Wireless image projector and wireless projector controller |
| CN102035699A (en) * | 2009-10-01 | 2011-04-27 | 杭州雄联科技有限公司 | Network projection playing equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005208823A (en) * | 2004-01-21 | 2005-08-04 | Seiko Epson Corp | Network system for projector |
-
2012
- 2012-08-20 CN CN201210295390.0A patent/CN102854717B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1430409A (en) * | 2001-12-25 | 2003-07-16 | 精工爱普生株式会社 | Radio control system and method for projector |
| KR20060039791A (en) * | 2004-11-03 | 2006-05-09 | 삼성전자주식회사 | Wireless projector system |
| CN1904717A (en) * | 2005-07-29 | 2007-01-31 | 鸿富锦精密工业（深圳）有限公司 | Switching system for projector |
| JP2008090563A (en) * | 2006-09-29 | 2008-04-17 | Brother Ind Ltd | Projection device |
| TW201028787A (en) * | 2009-01-23 | 2010-08-01 | Univ Nan Kai Technology | Wireless image projector and wireless projector controller |
| CN201535856U (en) * | 2009-06-23 | 2010-07-28 | 金纯� | Bluetooth projector |
| CN102035699A (en) * | 2009-10-01 | 2011-04-27 | 杭州雄联科技有限公司 | Network projection playing equipment |
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| Publication number | Publication date |
|---|---|
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