CN101453323B - Wireless display adaptation method, data transmission equipment and data display equipment - Google Patents
Wireless display adaptation method, data transmission equipment and data display equipment Download PDFInfo
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- CN101453323B CN101453323B CN2007101785409A CN200710178540A CN101453323B CN 101453323 B CN101453323 B CN 101453323B CN 2007101785409 A CN2007101785409 A CN 2007101785409A CN 200710178540 A CN200710178540 A CN 200710178540A CN 101453323 B CN101453323 B CN 101453323B
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Abstract
The invention discloses a wireless display adapting method, which relates to wireless display technology and is provided in order to solve the problem of inconvenient use of the prior wireless display. The wireless display adapting method adopts a technical proposal that: a first end/second end generates an identifier, and writes the identifier into a mobile device when the mobile memory device with writing function is detected; a second end/first end acquires the identifier from the mobile memory device when detecting the mobile memory device; the first end uses the identifier to encipher files to be transmitted and generates an enciphered file; and the second end utilizes the identifier to decipher the enciphered file which is received in a wireless mode, and displays the file. The invention simultaneously discloses a data transmitting device and a data display device for realizing the method. The wireless display adapting method only needs to arrange a data interactive interface of an external memory on the data transmitting device and the data display device and then arrange a module for supporting data read-write of the data interactive interface, is simple to realize, and has low cost.
Description
Technical field
The present invention relates to wireless Display Technique, relate in particular to a kind of wireless display adapting method and reach data transmitting equipment, data display equipment.
Background technology
Along with reaching its maturity of wireless carrier technology, it is used also more and more widely.At present, short distance wireless technical does not need special application because of big, the employed frequency spectrum resource of its data traffic, thereby is widely used in WLAN (wireless local area network), the radio display.Radio display has been realized the wireless penetration between main frame and the display, no longer is subjected to the restriction of data wire length between radio display and the main frame, can move arbitrarily, and is convenient for users to use.But in actual applications, because the wireless signal frequency is identical between the radio receiving unit on the radio display and the wireless transmission unit of main frame, radio display in may display radio signal effective range the content on the main frame of desired display data not, so just had influence on safety of user data.Therefore, must take certain measure to make between transmitting terminal and the radio display authentication mutually synchronously, thereby the radio display that the signal of transmitting terminal is supposed to receive.
At present, adopted the authentication recognition technology between wireless display instrument and the main frame, be each projecting apparatus and distribute a unique sequence number, the user lists all devices in the wireless range in host side by identification software, selects the equipment of required projection by user interface.This technology is similar to wireless local area network technology.In authentication phase, need carry out data interaction between main frame and the wireless display instrument, and for radio display, only in the signal and the demonstration of receiving end/sending end passively, consider cost factor, generally do not support the data interactive function, so this scheme and be not suitable for radio display.
Also has a kind of wireless Display Technique, behind selected radio display, need by data wire radio display to be connected with main frame earlier, carry out the cipher key interaction of data encrypting and deciphering between radio display and the main frame, pull down the video data that the radio display of selecting behind the data wire can show respective hosts.This scheme must connect by the cable data line before use, uses very inconvenient.
The somebody proposes input keyboard is set on radio display, and the employed key of host computer side enciphered data is input in the radio display by keyboard.Set up keyboard on radio display, will change the radio display structure undoubtedly, increase new processing module, this has increased the cost of radio display.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of wireless display adapting method and data transmitting equipment, data display equipment, can realize easily that desired wireless display terminal carries out the demonstration of data to be displayed.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of wireless display adapting method comprises:
First end/second end generates identifier, when detecting the movable storage device that can write function, described identifier is write described mobile device;
When second end/first end detects described movable storage device, obtain described identifier from described movable storage device;
Described first end generates encrypt file with the file encryption of described identifier to transmitting;
The described encrypt file that described second end utilizes described identifier deciphering to receive with wireless mode, and show.
Wherein, described first end is a data transmitting equipment;
Described second end is a data display equipment.
Wherein, when described data transmitting equipment during at least two, described data display equipment split screen shows the described encrypt file that sends with wireless mode of at least two described at least two data transmitting apparatus.
Wherein, also comprise:
When described data display equipment during at least two, each described data display equipment all shows the described encrypt file that described data transmitting equipment sends with wireless mode.
A kind of data transmitting equipment comprises:
Generation unit is used to generate identifier;
Processing unit is connected with described generation unit, is used for when detecting the movable storage device that can write function described identifier being write described mobile device; Be used to utilize the file encryption of described identifier, generate encrypt file transmitting;
Transmitting element is connected with described processing unit, is used for sending wirelessly described encrypt file.
A kind of data transmitting equipment comprises:
Reading unit is used to read identifier; Described identifier is stored in one to have in the movable storage device that can write function, and described identifier is write described movable storage device by a data receiver;
Processing unit is connected with described reading unit, is used to utilize the file encryption of described identifier to transmitting, and generates encrypt file;
Transmitting element is connected with described processing unit, is used for sending wirelessly described encrypt file.
A kind of data display equipment comprises:
Receiving element is used to receive identifier; Be used for receiving wirelessly encrypt file, described identifier is stored in one to have in the movable storage device that can write function, and described identifier is write described movable storage device by a data transmitting equipment; Described encrypt file is to utilize described identifier to encrypt file to be sent and generate by described data transmitting equipment;
Processing unit is connected with described receiving element, is used to utilize described identifier that described encrypt file is decrypted, and generates declassified document;
Display unit is connected with described processing unit, is used to show described declassified document.
Wherein, this equipment also comprises:
Judging unit is used to judge the quantity of the transmitting apparatus of described encrypt file;
The split screen display unit was used in described quantity more than or equal to 2 o'clock, the described encrypt file of at least two transmitting apparatus in the described transmitting apparatus is carried out split screen show on a described display unit.
A kind of data display equipment comprises:
Generation unit is used to generate identifier;
Receive processing unit, be connected, be used for when detecting the movable storage device that to write function, described identifier being write described movable storage device with described generation unit; Be used for receiving wirelessly encrypt file, utilize described identifier that described encrypt file is decrypted, generate declassified document;
Display unit is connected with described reception processing unit, is used to show described declassified document.
Wherein, this equipment also comprises:
Judging unit is used to judge the quantity of the transmitting apparatus of described encrypt file;
The split screen display unit was used in described quantity more than or equal to 2 o'clock, the described encrypt file of at least two transmitting apparatus in the described transmitting apparatus is carried out split screen show on a described display unit.
The present invention is directed to existing wireless Display Technique and use inconvenience and the higher shortcoming of cost, by the memory realization transmitting apparatus of outside and the cipher key interaction between the display device, can on desired wireless display apparatus, show the file to be shown that transmitting apparatus is sent easily.The present invention only is provided with an external memory storage on transmitting apparatus and wireless display apparatus data interaction interface gets final product, and the module of supporting that the data interactive interface reads and writes data is set on the said equipment again, and realization is simple, cost is lower.
Description of drawings
Fig. 1 is the flow chart of wireless display adapting method of the present invention;
Fig. 2 is the composition structural representation of data transmitting equipment of the present invention;
Fig. 3 is another composition structural representation of data transmitting equipment of the present invention;
Fig. 4 is the composition structural representation of data display equipment of the present invention;
Fig. 5 is the composition structural representation of data display equipment of the present invention.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
Fig. 1 is the flow chart of wireless display adapting method of the present invention, and as shown in Figure 1, wireless display adapting method of the present invention comprises:
Step 101: first end/second end generates identifier, when detecting the movable storage device that can write function, described identifier is write described mobile device; First end generates encrypt file with the file encryption of described identifier to transmitting.Here, first end is for supporting the main frame of wireless demonstration, and it is provided with the wireless transmission antenna of data to be displayed, and transmitting antenna can be launched the low frequency signal of wireless display protocol requirement.First end among the present invention refers to the intelligent terminal that all support wireless demonstration.Accordingly, second end is for supporting the radio display of wireless demonstration.Identifier can be the arbitrary data as the video data keys for encryption/decryption.Identifier of the present invention by first end or second end generate all can, copy to after the generation in the movable storage device, by movable storage device this identifier is notified to the other side again.Described movable storage device is the terminal with data storage function, for carrying out flash disk, portable hard drive, integrated circuit (IC) memory of data interaction etc. with first end/second end, also can be the portable terminal with above-mentioned memory.Accordingly, writing incoming interface automatically is USB interface, various data serial ports and IC wave point.
This step generates the encryption key of data to be displayed in main frame/radio display, what key was set on main frame/radio display simultaneously writes incoming interface automatically.Main frame/radio display is written to key in the memory after detecting and writing incoming interface automatically and have memory to insert automatically.Here, it is preferably empty to be used for the memory of storage encryption key, and the key that helps wireless display end like this reads, and need not to be provided with the algorithm of searching key or stores specific address into.
Step 102: when second end/first end detects described movable storage device, obtain described identifier from described movable storage device; The described encrypt file that described second end utilizes described identifier deciphering to receive with wireless mode, and show.This step is corresponding with step 101, after first end/second end generates identifier and writes movable storage device, the movable storage device that has write identifier is linked into second end/first end.Among the present invention, second end is for supporting the display of wireless demonstration.Second end utilize the identifier of self-generating or the movable storage device that reads by automatic fetch interface on identifier, the wireless video data of the encryption that received is decrypted and shows.As previously mentioned, automatically being connected between fetch interface and the movable storage device can be wired mode or wireless mode.Identifier can be the arbitrary data as the video data keys for encryption/decryption.
After having disposed key, can realize the demonstration of data to be displayed between select host and the selected radio display.Main frame utilizes key that data are encrypted before sending data to be displayed, has only the radio display that has disposed same key could decipher the data that this main frame sends, and could correctly show.This has increased the fail safe that data show undoubtedly.
If the user wishes that the video data of host A shows by radio display B, can in host A and radio display B, write the enciphering/deciphering key of video data so in specific memory section/memory address respectively.Before video data in the host A carries out wireless transmission, utilize the key in specific memory section/memory address that data are encrypted; When radio display B receives video data, utilize the key in specific memory section/memory address to be decrypted, if received data from host A, data decryption will be successful, video data can be on radio display B normally shows; For the video data from other main frames, because employed encryption key difference, radio display B can't realize data decryption, promptly can abandon corresponding data, will not show.For with cipher key configuration to sending the mode in the specific memory section in terminal and the wireless display terminal, when the change radio display shows, need change the key in main frame and the display memory block simultaneously.
For making the present invention support display mode widely, radio display also supports split screen to show, also supports the data of a main frame to show on a plurality of radio displays.
At selected main frame is a plurality of and radio display when being, one of them radio display/main frame generates data key, obtain key by a plurality of mobile memory memory by using aforementioned manner, and be notified to other main frame/radio displays, radio display is determined the host number of transmitting terminal according to source ID in the reception video data bag, host number according to transmitting terminal carries out split screen to display screen, and shows the video data of each main frame on corresponding split screen respectively by the source ID that sends packet.
And be that one and radio display are when being a plurality of at selected main frame, one of them radio display/main frame generates data key, obtain key by a plurality of mobile memory memory by using aforementioned manner, and be notified to other main frame/radio displays, main frame is to send after the data encryption to be sent, but a plurality of radio displays in the signal range of receiving all can be deciphered the packet that this main frame sends, thereby all can show identical data.
Fig. 2 is the composition structural representation of data transmitting equipment of the present invention, and as shown in Figure 2, data transmitting equipment of the present invention comprises generation unit 20, processing unit 21 and transmitting element 22, and wherein, generation unit 20 is used to generate identifier.Processing unit 21 is connected with generation unit 20, is used for when detecting the movable storage device that can write function described identifier being write described movable storage device; Be used to utilize the file encryption of described identifier, generate encrypt file transmitting.Transmitting element 22 is connected with described processing unit 21, is used for sending wirelessly described encrypt file.The key that is disposed in the data transmitting equipment of the present invention can be transplanted in the selected data display equipment by external memory storage.
Processing unit 21 is provided with writes incoming interface automatically, when having detected external memory storage and insert, in the identifier write memory that generation unit 20 is generated.Automatically writing incoming interface can be that contact is connected with connected mode between the memory, as the grafting of flash disk and USB interface; Also can be contactless connection, as the wireless connections mode between IC storage card and the IC read-write equipment.
Fig. 3 is another composition structural representation of data transmitting equipment of the present invention, and as shown in Figure 3, data transmitting equipment of the present invention comprises reading unit 30, processing unit 31 and transmitting element 32, and wherein, reading unit 30 is used to read identifier; Described identifier is stored in one to have in the movable storage device that can write function, and described identifier is write described movable storage device by a data receiver.Processing unit 31 is connected with described reading unit 30, is used to utilize the file encryption of described identifier to transmitting, and generates encrypt file.Transmitting element 32 is connected with described processing unit 31, is used for sending wirelessly described encrypt file.
Reading unit 30 is provided with automatic fetch interface, when having detected the external memory storage access, reads the identifier in the memory, the file encryption of identifier to being transmitted that processing unit 31 utilizes reading unit 30 to be read.Automatically fetch interface can be that contact is connected with connected mode between the memory, as the grafting of flash disk and USB interface; Also can be contactless connection, as the wireless connections mode between IC storage card and the IC read-write equipment.
Data transmitting equipment of the present invention is for supporting the main frame of wireless transmission function, and it has core devices such as CPU, data/address bus, demonstration output port, memory, because main machine structure is a known technology, the present invention repeats no more.
It will be appreciated by those skilled in the art that the described function in each unit that the present invention sends terminal can realize by corresponding program or circuit.As identical goal of the invention and identical technological means, the present invention sends each unit of terminal and can understand with reference to the description in the aforementioned wireless display adapting method.
Fig. 4 is the composition structural representation of data display equipment of the present invention, and as shown in Figure 4, data display equipment of the present invention comprises receiving element 40, processing unit 41 and display unit 42, and wherein, receiving element 40 is used to receive identifier; Be used for receiving wirelessly encrypt file, described identifier is stored in one to have in the movable storage device that can write function, and described identifier is write described movable storage device by a data transmitting equipment; Described encrypt file is to utilize described identifier to encrypt file to be sent and generate by described data transmitting equipment.Processing unit 41 is connected with described receiving element 40, is used to utilize described identifier that described encrypt file is decrypted, and generates declassified document.Display unit 42 is connected with described processing unit 41, is used to show described declassified document.
Receiving element 40 is provided with automatic fetch interface, when having detected the external memory storage access, reads the identifier in the memory, and processing unit 41 utilizes the identifier that is read to decipher the encrypt file that is received.Automatically fetch interface can be that contact is connected with connected mode between the memory, as the grafting of flash disk and USB interface; Also can be contactless connection, as the wireless connections mode between IC storage card and the IC read-write equipment.
As shown in Figure 4, data display equipment of the present invention also comprises judging unit 43 and split screen display unit 44, to support the situation of the shared data display equipment of a plurality of transmitting apparatus.Wherein, judging unit 43 is used to judge the quantity of the transmitting apparatus of described encrypt file.Transmitting apparatus quantity can determine that the source ID of the packet that different transmitting apparatus is packaged is inevitable different by the source data packet ID in the reception file, and source ID quantity is the quantity of the transmitting apparatus of described encrypt file.Split screen display unit 44 was used in described transmitting apparatus quantity more than or equal to 2 o'clock, the described encrypt file of at least two transmitting apparatus in the described transmitting apparatus is carried out split screen show on a described display unit.
Fig. 5 is the composition structural representation of data display equipment of the present invention, and as shown in Figure 5, data display equipment of the present invention comprises generation unit 50, receives processing unit 51 and display unit 52, and wherein, generation unit 50 is used to generate identifier.Receive processing unit 51, be connected, be used for when detecting the movable storage device that to write function, described identifier being write described mobile device with described generation unit 50; Be used for receiving wirelessly encrypt file, utilize described identifier that described encrypt file is decrypted, generate declassified document.Display unit 52 is connected with described reception processing unit 51, is used to show described declassified document.
Receive processing unit 51 and be provided with automatic fetch interface, when having detected the external memory storage access, read the identifier in the memory, the identifier that display unit 52 utilizes reception processing units 51 to be read is decrypted the encrypt file that is received.Automatically fetch interface can be that contact is connected with connected mode between the memory, as the grafting of flash disk and USB interface; Also can be contactless connection, as the wireless connections mode between IC storage card and the IC read-write equipment.
Data display equipment of the present invention also comprises judging unit 53 and split screen display unit 54, to support the situation of the shared data display equipment of a plurality of transmitting apparatus.Wherein, judging unit with 53 in the quantity of the transmitting apparatus of judging described encrypt file.Transmitting apparatus quantity can determine that the source ID of the packet that different transmitting apparatus is packaged is inevitable different by the source data packet ID in the reception file, and source ID quantity is the quantity of the transmitting apparatus of described encrypt file.Split screen display unit 54 was used in described transmitting apparatus quantity more than or equal to 2 o'clock, the described encrypt file of at least two transmitting apparatus in the described transmitting apparatus is carried out split screen show on a described display unit.
The described function in each unit that it will be appreciated by those skilled in the art that wireless display terminal of the present invention can realize by corresponding program or circuit.As identical goal of the invention and identical technological means, each unit of wireless display terminal of the present invention can be understood with reference to the description in the aforementioned wireless display adapting method.
The present invention only is provided with an external memory storage on data transmitting equipment and data display equipment data interaction interface gets final product, on above-mentioned terminal, be provided with again the module of supporting the data interactive interface to read and write data realize simple, cost is lower.It will be appreciated by those skilled in the art that between data transmitting equipment and the data display equipment it is corresponding the application, when one of them generated identifier, another read by movable storage device and gets final product.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. a wireless display adapting method is characterized in that, this method comprises:
First end/second end generates identifier, when detecting the movable storage device that can write function, described identifier is write described movable storage device;
When second end/first end detects described movable storage device, obtain described identifier from described movable storage device;
Described first end generates encrypt file with the file encryption of described identifier to transmitting;
The described encrypt file that described second end utilizes described identifier deciphering to receive with wireless mode, and show;
Wherein, describedly described identifier is write described movable storage device comprise: described identifier is write described movable storage device by wireless mode; Or
Describedly obtain described identifier from described movable storage device and comprise: obtain described identifier from described movable storage device by wireless mode.
2. method according to claim 1 is characterized in that,
Described first end is a data transmitting equipment;
Described second end is a data display equipment.
3. wireless display adapting method according to claim 2 is characterized in that,
When described data transmitting equipment during at least two, described data display equipment split screen shows the described encrypt file that sends with wireless mode of at least two described at least two data transmitting apparatus.
4. wireless display adapting method according to claim 2 is characterized in that, also comprises:
When described data display equipment during at least two, each described data display equipment all shows the described encrypt file that described data transmitting equipment sends with wireless mode.
5. a data transmitting equipment is characterized in that, comprising:
Generation unit is used to generate identifier;
Processing unit is connected with described generation unit, is used for by wireless mode described identifier being write described movable storage device when detecting the movable storage device that can write function; Be used to utilize the file encryption of described identifier, generate encrypt file transmitting;
Transmitting element is connected with described processing unit, is used for sending described encrypt file to data display equipment wirelessly.
6. a data transmitting equipment is characterized in that, comprising:
Reading unit is used for reading identifier by wireless mode; Described identifier is stored in one to have in the movable storage device that can write function, and described identifier is write described movable storage device by a data receiver;
Processing unit is connected with described reading unit, is used to utilize the file encryption of described identifier to transmitting, and generates encrypt file;
Transmitting element is connected with described processing unit, is used for sending described encrypt file to described data receiver wirelessly.
7. a data display equipment is characterized in that, comprising:
Receiving element is used for receiving identifier and encrypt file with wireless mode, and described identifier is stored in one to have in the movable storage device that can write function, and described identifier is write described movable storage device by a data transmitting equipment; Described encrypt file is to utilize described identifier to encrypt file to be sent and generate by described data transmitting equipment;
Processing unit is connected with described receiving element, is used to utilize described identifier that described encrypt file is decrypted, and generates declassified document;
Display unit is connected with described processing unit, is used to show described declassified document.
8. data display equipment according to claim 7 is characterized in that, also comprises:
Judging unit is used to judge the quantity of the transmitting apparatus of described encrypt file;
The split screen display unit was used in described quantity more than or equal to 2 o'clock, the described encrypt file of at least two transmitting apparatus in the described transmitting apparatus is carried out split screen show on a described display unit.
9. a data display equipment is characterized in that, comprising:
Generation unit is used to generate identifier;
Receive processing unit, be connected, be used for when detecting the movable storage device that to write function, described identifier being write described movable storage device by wireless mode with described generation unit; Be used for receiving wirelessly encrypt file, utilize described identifier that described encrypt file is decrypted, generate declassified document;
Display unit is connected with described reception processing unit, is used to show described declassified document.
10. data display equipment according to claim 9 is characterized in that, also comprises:
Judging unit is used to judge the quantity of the transmitting apparatus of described encrypt file;
The split screen display unit was used in described quantity more than or equal to 2 o'clock, the described encrypt file of at least two transmitting apparatus in the described transmitting apparatus is carried out split screen show on a described display unit.
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| CN2007101785409A CN101453323B (en) | 2007-11-30 | 2007-11-30 | Wireless display adaptation method, data transmission equipment and data display equipment |
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| CN2007101785409A CN101453323B (en) | 2007-11-30 | 2007-11-30 | Wireless display adaptation method, data transmission equipment and data display equipment |
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| CN101453323B true CN101453323B (en) | 2011-06-22 |
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| US9936335B2 (en) * | 2012-12-13 | 2018-04-03 | Microsoft Technology Licensing, Llc | Mobile computing device application sharing |
| CN106293381B (en) * | 2015-06-11 | 2019-09-24 | 联想(北京)有限公司 | Control method, control device and electronic equipment |
| CN109313684B (en) * | 2016-05-31 | 2020-03-13 | 三菱电机株式会社 | Programmable display, safety management method for programmable display, and safety management program for programmable display |
| CN108446088B (en) * | 2018-04-18 | 2024-09-10 | 广州视源电子科技股份有限公司 | Terminal and screen throwing system |
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| WO2005018191A2 (en) * | 2003-08-13 | 2005-02-24 | Qualcomm, Incorporated | A signal interface for higher data rates |
| CN1933397A (en) * | 2005-09-13 | 2007-03-21 | 联想(北京)有限公司 | Method and equipment for raising wireless display device safety |
| CN101046734A (en) * | 2006-03-30 | 2007-10-03 | 联想(北京)有限公司 | Radio data transmission device and method and display module |
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| WO2005018191A2 (en) * | 2003-08-13 | 2005-02-24 | Qualcomm, Incorporated | A signal interface for higher data rates |
| CN1933397A (en) * | 2005-09-13 | 2007-03-21 | 联想(北京)有限公司 | Method and equipment for raising wireless display device safety |
| CN101046734A (en) * | 2006-03-30 | 2007-10-03 | 联想(北京)有限公司 | Radio data transmission device and method and display module |
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