CN107944281A - Papery printed document secrecy transmission system and method based on VR glasses - Google Patents
Papery printed document secrecy transmission system and method based on VR glasses Download PDFInfo
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- CN107944281A CN107944281A CN201711068813.4A CN201711068813A CN107944281A CN 107944281 A CN107944281 A CN 107944281A CN 201711068813 A CN201711068813 A CN 201711068813A CN 107944281 A CN107944281 A CN 107944281A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/606—Protecting data by securing the transmission between two devices or processes
- G06F21/608—Secure printing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/013—Eye tracking input arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
- G06F3/1222—Increasing security of the print job
Abstract
The present invention discloses a kind of papery printed document secrecy transmission system and method based on VR glasses, for solving the technical problem that risk is big and practical operation is inconvenient of divulging a secret present in existing papery printed document secrecy transmission system and method, the system of the present invention, including PC machine, printer and VR glasses, wherein PC machine includes print driver, for obtaining print data and print data being encrypted, and by encrypted ciphertext data sending to printer；VR glasses include VR data processing modules, for carrying out geometric correction to papery ciphertext graph picture and decrypting, and the plaintext view data after decryption are sent to display screen；The method of the present invention concretely comprises the following steps：(1) PC machine submits print data to printer；(2) printer printing ciphertext data；(3) VR glasses show plaintext view data；(4) user reads the plaintext view data that VR display screens are shown.
Description
Technical field
The invention belongs to field of information security technology, it is related to the secrecy transmission system and method for papery printed document, specifically
It is related to a kind of papery printed document secrecy transmission system and method based on VR glasses, the secrecy available for papery printed document passes
Pass and operation readiness.
Background technology
With the fast development of RESEARCH OF CHAOS-BASED SECURITY COMMUNICATION technology, the secrecy and preventive means of electronic document transmission are more and more richer
It is rich so that electronic document information-leakage in transmittance process has been achieved with very big containment.But papery printed document this letter
Carrier is ceased but without good secrecy transfer means, government department, military establishment, Research Center for possessing numerous confidential datas
For institute or enterprise, the papery printed document papery transmission of concerning security matters confidential information is an actual demand that can not avoid.Tradition
It is that this mode is to printing by the way of secure print management and the tracking of printing source that ground, which transmits papery printed document secrecy,
Each step of task is monitored and audits, and realizes closed loop management, can effectively avoid leakage of data caused by human factor, and
By being embedded in the digital watermarking of vision invisible but energy identified author, document or Printer Information to printing content, can let out
Fast track is divulged a secret source after penetralia part occurs, and tracking person liable simultaneously removes a hidden danger.But the document content due to printing is can
Read in plain text, transmit when easily taken on the sly or stolen by attacker, or by irresistible natural cause cause information lose or
Divulge a secret, although can follow the trail of rapidly printing source, but caused by lose and can not retrieve, can not truly accomplish papery
The secrecy transmission of document.
For paper document secrecy transmission there are the problem of, be to use third party's client software pair in usual way
File encryption and decryption, and scanner scanning paper document is used, such as application publication number is CN105631348A, it is entitled
A kind of papery mimeograph documents time slot scrambling is disclosed in the patent application of " a kind of papery mimeograph documents time slot scrambling "：Sender pacifies
Client software is filled, the automatic meaningless document print intercepted and captured and the content to be printed originally is replaced as to chaotic sequence comes out；
The paper document of receiving terminal software control scanner scanning printing, and it is using the key and algorithm identical with sender that these are literary
Word prints again after being rearranged for correct built-up sequence, obtains correct cleartext information.Although this method is passed using ciphertext
Paper document is passed, strengthens function of keeping secret, but still have the following disadvantages：(1) this method uses client during decryption
Software to scanner scanning to electronics ciphertext document be decrypted, and print the paper document of plaintext, this mode can produce
Retaining for the electronic edition of raw document and the cleartext information of papery version, brings extra risk of divulging a secret, therefore this method is not real
The secrecy transmission of paper document is realized in meaning Shangdi, still suffers from the problem of divulging a secret.(2) generation and decryption of ciphertext are printed in this method
Need to complete by extra client software and scanner device, process is lengthy and tedious, and it is many unnecessary that user needs to carry out
Operation bidirectional, it is very inconvenient, thus this method can not provide the user with well operation practicality.
VR glasses are a kind of brand-new Display Technique equipment in modem display devices, are by virtual reality (virtual
Reality the head-mounted display apparatus of optical imagery).Present VR glasses are similar to a small-sized unique host, including independence
Processor, operating system, camera and display screen, possess the independent function of calculating, output and input, and can be completely independent
Work is assisted without other equipment, and has the function of that complete development platform is improved it easy to developer.In recent years,
VR glasses have been widely applied in scientific research and daily life.
The content of the invention
It is an object of the invention to overcome above-mentioned defects in the prior art, it is proposed that a kind of papery based on VR glasses
Printed document secrecy transmission system, for solving wind of divulging a secret present in existing papery printed document secrecy transmission system and method
Dangerous big and practical operation inconvenience technical problem.
To achieve these goals, the technical solution that the present invention takes includes the following steps：
Papery printed document secrecy transmission system based on VR glasses, including PC machine, printer and VR glasses, wherein：
The PC machine, including printer subsystem and print driver, the printer subsystem, for receiving printing number automatically
According to, and sent after being translated into view data；The print driver, for obtaining print data and being carried out to print data
Encryption, and by encrypted ciphertext data sending to printer；
The printer, for printing the encrypted ciphertext data of PC machine transmission, obtains papery ciphertext；
The VR glasses, including camera, display screen and VR data processing modules, the camera, for shooting papery
Ciphertext；The VR data processing modules, for papery ciphertext graph picture geometric correction and decrypt, and by the plaintext after decryption
View data is sent to display screen；The display screen, for showing plaintext view data.
The above-mentioned papery printed document secrecy transmission system based on VR glasses, the print driver, including data receiver
Module and data encryption and sending module, wherein：The data reception module, for receiving view data and sending；The number
It is used for according to encryption and sending module, including data encryption submodule and print driver sending submodule, data encryption submodule
The view data that data reception module receives is encrypted, print driver sending submodule is used for ciphertext data sending
To the data port of printer.
The above-mentioned papery printed document secrecy transmission system based on VR glasses, the VR data processing modules, including data
Pretreatment module and data deciphering and sending module, wherein：The data preprocessing module, for being carried out to papery ciphertext graph picture
Geometric correction is simultaneously sent；The data deciphering and sending module, including data deciphering submodule and VR data processing modules are sent
Submodule, data deciphering submodule are used to the papery ciphertext graph picture after data prediction resume module be decrypted, VR data
Processing module sending submodule is used to send the plaintext view data after decryption to VR display screens.
The above-mentioned papery printed document secrecy transmission system based on VR glasses, the data encryption submodule and data deciphering
Submodule uses symmetric key.
Papery printed document secrecy transmission method based on VR glasses, includes the following steps：
(1) PC machine submits print data to printer：
Automatically the print data received is converted into view data by the printer subsystem of (1a) PC machine by page, and is driven to printing
Dynamic device is sent；
The data reception module of (1b) printer driver receives view data, and the view data is sent to data and is added
Close and sending module；
View data is encrypted in the data encryption submodule of (1c) printer driver, obtains ciphertext data, printing
The sending submodule of machine driver is by ciphertext data sending to printer data port；
(2) printer printing ciphertext data：The ciphertext data that printer printing PC machine is sent, obtain papery ciphertext；
(3) VR glasses show plaintext view data：
(3a) VR glasses shoot papery ciphertext by camera, obtain papery ciphertext graph picture；
(3b) VR glasses carry out geometry school by the data preprocessing module of VR data processing modules to papery ciphertext graph picture
Just, and by the papery ciphertext graph picture after correction send to the data deciphering of VR data processing modules and sending module；
(3c) VR glasses by the data deciphering submodules of VR data processing modules, to the papery ciphertext graph picture after correction into
Row decryption, obtains plaintext view data；
(3d) VR glasses are sent plaintext view data to VR display screens by the sending submodule of VR data processing modules
On；
(4) user reads the plaintext view data that VR display screens are shown.
Compared with prior art, the present invention have the following advantages that：
First, the present invention is by VR data since user is when reading the plaintext view data that VR display screens are shown
The papery ciphertext graph picture that reason module shoots camera carries out geometric correction, and is shown after the ciphertext graph picture after correction is decrypted
Show what is realized on the display screen of VR glasses, complete the secrecy transmission of papery printed document, whole process is not in electronics
The residual of clear text copy and papery plain text document, compared with prior art, has the confidentiality of higher.
Second, the present invention uses the print driver comprising data encryption and the VR glasses comprising data deciphering, in PC machine
When submitting print out task to printer, print driver can realize the encryption of print image data automatically, and ciphertext data are passed
Give printer port to be printed, sender need to only submit print out task；When user receives papery ciphertext at the same time, use
VR glasses can automatically snap data, correction, decryption and display, and user need to only read in display screen and decrypt without any operation
Clear data afterwards, the both sides for avoiding transmission use specific software, compared with prior art, have the operation of higher
Practicality.
Brief description of the drawings
Fig. 1 is the overall structure diagram of papery printed document secrecy transmission system of the present invention；
Fig. 2 realizes flow chart for papery printed document secrecy transmission method of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further detail.
With reference to Fig. 1, the papery printed document secrecy transmission system based on VR glasses, including PC machine, printer and VR glasses,
Wherein：
PC machine includes printer subsystem and print driver, and printer subsystem is substantially one group of device drives of operating system
Program, is used for realization stable background printing, and when one print job of application program launching, printer subsystem can receive automatically
Print data, and it is sent to print driver after being translated into view data；Print driver is mounted in the journey in PC machine
Sequence, including data reception module and data encryption and sending module, wherein：Data reception module, for receiving printer subsystem
The view data of transmission is simultaneously sent to data encryption and sending module；Data encryption and sending module, including data encryption submodule
Block and print driver sending submodule, the view data that data encryption submodule is used to receive data reception module carry out
Encryption, sending submodule are used for the data port of ciphertext data sending to printer.
Printer, for printing encrypted ciphertext data, obtains papery ciphertext；
VR glasses, including camera, display screen and VR data processing modules, camera are the input equipment of VR glasses, are used
Papery ciphertext is shot in realizing；VR data processing modules are built-in the program in VR glasses, including data preprocessing module and
Data deciphering and sending module, wherein：Data preprocessing module, be used for realization the papery ciphertext graph picture that is arrived to scanner scanning into
Row geometric correction is simultaneously sent to data deciphering and sending module；Data deciphering and sending module, including data deciphering submodule and
VR data processing module sending submodules, data deciphering submodule are used for the papery ciphertext graph after data prediction resume module
As being decrypted, plaintext view data is obtained, the sending submodule of VR data processing modules is used for the plaintext image after decryption
On data sending to VR display screens, read for user.
Wherein, the data encryption submodule of print driver is to use with the data deciphering submodule of VR data processing modules
Symmetric key, is using identical key when encryption is with decryption.
With reference to Fig. 2, the papery printed document secrecy transmission method based on VR glasses, includes the following steps：
Step 1) PC machine submits print data to printer：
Step 1a) PC machine operating system in the printing submitted of the print data PC machine that can receive automatically of printer subsystem
Data, and it is converted into the view data page by page for meeting printing standard by printer page, and view data is given
Print driver；
Step 1b) data reception module of printer driver receives view data, and by the view data send to
Data encryption and sending module；
Step 1c) view data is encrypted in the data encryption submodule of printer driver, using Arnold conversion
Method, is specially：Determine key N, and carry out evolution one by one to image pixel by key N, to the picture of view data
Vegetarian refreshments position scramble, so as to fulfill the encryption of image.Arnold conversion first passes through matrix operation and original image pixels value is carried out
Stretching makes its value become larger, and is then turned back again by pixel value by modulo operation so that each pixel uniquely transforms to separately
One location point.The expression formula of wherein evolution is：
Wherein, (x, y) represents the position coordinates of original image pixels, and (x', y') represents that the position of encrypted image pixel is sat
Mark.
Ciphertext data are obtained by data encryption submodule, printer driver sending submodule by ciphertext data sending extremely
Printer data port；
Step 2) printer prints ciphertext data：Printer printing PC machine is sent to the ciphertext data of data port, obtains
Papery ciphertext；
Step 3) VR glasses show plaintext view data：
Step 3a) VR glasses by camera shoot papery ciphertext, obtain papery ciphertext graph picture；
Step 3b) VR glasses by the data preprocessing modules of VR data processing modules, carry out papery ciphertext graph picture several
What is corrected, and specific implementation step is as follows：
Step 3b1) deformation correction is carried out to papery ciphertext graph picture：Data preprocessing module is according in VR glasses cameras
Portion's parameter, correcting captured papery ciphertext graph image deformation distortion as caused by, obtains the papery ciphertext graph picture after deformation correction；
Step 3b2) position correction is carried out to the papery ciphertext graph picture after deformation correction：Data preprocessing module extracts deformation
The contour line of papery ciphertext graph picture after correction, and computational geometry rotation angle is gone out according to contour line image is inversely revolved
Turn, the papery ciphertext graph picture available for decryption is obtained, by the papery ciphertext graph after correction as sending to VR data processing modules
Data deciphering and sending module；
Step 3c) VR glasses are by the data deciphering submodules of VR data processing modules, to the papery ciphertext graph after correction
As being decrypted, using Arnold inverse transformation methods, Arnold inverse transformations are the inverse process of Arnold conversion, utilize well-known key
N carries out scramble image pixel position inverse transformation one by one, recovers the position of scramble preceding pixel point, so as to fulfill the solution of image
It is close.Wherein, the expression formula of position inverse transformation is：
Wherein, (x, y) represents the position coordinates for the plaintext image pixel that decryption obtains, and (x', y') represents encrypted image picture
The position coordinates of element.
Plaintext view data is obtained by data deciphering submodule, VR data processing modules sending submodule is by plaintext image
On data sending to VR display screens；
Step 4) user reads the plaintext view data that VR display screens are shown.
Claims (8)
1. a kind of papery printed document secrecy transmission system based on VR glasses, it is characterised in that including PC machine, printer and VR
Glasses, wherein：
The PC machine, including printer subsystem and print driver, the printer subsystem, for receiving print data automatically,
And sent after being translated into view data；The print driver, for obtaining print data and adding to print data
It is close, and by encrypted ciphertext data sending to printer；
The printer, for printing the encrypted ciphertext data of PC machine transmission, obtains papery ciphertext；
The VR glasses, including camera, display screen and VR data processing modules, the camera, for shooting papery ciphertext；
The VR data processing modules, for papery ciphertext graph picture geometric correction and decrypt, and by the plaintext image after decryption
Data sending is to display screen；The display screen, for showing plaintext view data.
2. the papery printed document secrecy transmission system according to claim 1 based on VR glasses, it is characterised in that described
Print driver, including data reception module and data encryption and sending module, wherein：The data reception module, for connecing
Receive view data and send；The data encryption and sending module, including data encryption submodule and print driver send son
Module, data encryption submodule are used to the view data that data reception module receives be encrypted, and print driver is sent
Submodule is used for the data port of ciphertext data sending to printer.
3. the papery printed document secrecy transmission system according to claim 1 based on VR glasses, it is characterised in that described
VR data processing modules, including data preprocessing module and data deciphering and sending module, wherein：The data prediction mould
Block, for carrying out geometric correction to papery ciphertext graph picture and sending；The data deciphering and sending module, including data deciphering
Module and VR data processing module sending submodules, data deciphering submodule are used for the papery after data prediction resume module
Ciphertext graph picture is decrypted, and VR data processing modules sending submodule is used to send the plaintext view data after decryption to VR to show
In display screen.
4. the papery printed document secrecy transmission system according to claim 1 based on VR glasses, it is characterised in that described
Data encryption submodule uses symmetric key with data deciphering submodule.
5. a kind of papery printed document secrecy transmission method based on VR glasses, it is characterised in that include the following steps：
(1) PC machine submits print data to printer：
Automatically the print data received is converted into view data by the printer subsystem of (1a) PC machine by page, and to print driver
Send；
The data reception module of (1b) printer driver receives view data, and the view data sent to data encryption and
Sending module；
View data is encrypted in the data encryption submodule of (1c) printer driver, obtains ciphertext data, and printer drives
The sending submodule of dynamic device is by ciphertext data sending to printer data port；
(2) printer printing ciphertext data：The ciphertext data that printer printing PC machine is sent, obtain papery ciphertext；
(3) VR glasses show plaintext view data：
(3a) VR glasses shoot papery ciphertext by camera, obtain papery ciphertext graph picture：
(3b) VR glasses carry out geometric correction by the data preprocessing modules of VR data processing modules to papery ciphertext graph picture,
And the papery ciphertext graph picture after correction is sent to the data deciphering of VR data processing modules and sending module；
(3c) VR glasses solve the papery ciphertext graph picture after correction by the data deciphering submodule of VR data processing modules
It is close, obtain plaintext view data；
(3d) VR glasses are sent plaintext view data to VR display screens by the sending submodule of VR data processing modules；
(4) user reads the plaintext view data that VR display screens are shown.
6. the papery printed document secrecy transmission method according to claim 5 based on VR glasses, it is characterised in that step
View data being encrypted described in (1c), using Arnold conversion method, is specially：Determine key N, and pass through key N
Evolution one by one is carried out to image pixel, realizes the scrambling encryption to view data, wherein, the expression formula of evolution
For：
<mrow>
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<mtable>
<mtr>
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<mi>x</mi>
<mo>&prime;</mo>
</msup>
</mtd>
</mtr>
<mtr>
<mtd>
<msup>
<mi>y</mi>
<mo>&prime;</mo>
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</mtr>
</mtable>
</mfenced>
<mo>=</mo>
<mfenced open = "[" close = "]">
<mtable>
<mtr>
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<mn>1</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>2</mn>
</mtd>
</mtr>
</mtable>
</mfenced>
<mfenced open = "[" close = "]">
<mtable>
<mtr>
<mtd>
<mi>x</mi>
</mtd>
</mtr>
<mtr>
<mtd>
<mi>y</mi>
</mtd>
</mtr>
</mtable>
</mfenced>
<mi>mod</mi>
<mi>N</mi>
<mo>,</mo>
<mi>x</mi>
<mo>,</mo>
<mi>y</mi>
<mo>&Element;</mo>
<mo>{</mo>
<mn>0</mn>
<mo>,</mo>
<mn>1</mn>
<mo>,</mo>
<mn>2</mn>
<mo>,</mo>
<mn>...</mn>
<mo>,</mo>
<mi>N</mi>
<mo>-</mo>
<mn>1</mn>
<mo>}</mo>
</mrow>
Wherein, (x, y) represents the position coordinates of original image pixels, and (x', y') represents the position coordinates of encrypted image pixel.
7. the papery printed document secrecy transmission method according to claim 5 based on VR glasses, it is characterised in that step
Geometric correction is carried out to papery ciphertext graph picture described in (3b), realizes that step is：
(3b1) carries out deformation correction to papery ciphertext graph picture：Data preprocessing module according to the inner parameters of VR glasses cameras,
Correcting captured papery ciphertext graph image deformation distortion as caused by, obtains the papery ciphertext graph picture after deformation correction；
(3b2) carries out position correction to the papery ciphertext graph picture after deformation correction：After data preprocessing module extraction deformation correction
Papery ciphertext graph picture contour line, and according to the geometry rotation angle counter-rotating of profile line computation, obtain can be used for decrypting
Papery ciphertext graph picture.
8. the papery printed document secrecy transmission method according to claim 5 based on VR glasses, it is characterised in that step
The papery ciphertext graph picture after correction being decrypted described in (3c), using Arnold inverse transformation methods, by key N to image
Pixel carries out evolution one by one, recovers the plaintext image before scramble, wherein, the expression formula of evolution is：
<mrow>
<mfenced open = "[" close = "]">
<mtable>
<mtr>
<mtd>
<mi>x</mi>
</mtd>
</mtr>
<mtr>
<mtd>
<mi>y</mi>
</mtd>
</mtr>
</mtable>
</mfenced>
<mo>=</mo>
<mfenced open = "[" close = "]">
<mtable>
<mtr>
<mtd>
<mn>2</mn>
</mtd>
<mtd>
<mrow>
<mo>-</mo>
<mn>1</mn>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mo>-</mo>
<mn>1</mn>
</mrow>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
</mtr>
</mtable>
</mfenced>
<mfenced open = "[" close = "]">
<mtable>
<mtr>
<mtd>
<msup>
<mi>x</mi>
<mo>&prime;</mo>
</msup>
</mtd>
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<mtd>
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<mi>y</mi>
<mo>&prime;</mo>
</msup>
</mtd>
</mtr>
</mtable>
</mfenced>
<mi>mod</mi>
<mi>N</mi>
<mo>,</mo>
<mi>x</mi>
<mo>,</mo>
<mi>y</mi>
<mo>&Element;</mo>
<mo>{</mo>
<mn>0</mn>
<mo>,</mo>
<mn>1</mn>
<mo>,</mo>
<mn>2</mn>
<mo>,</mo>
<mn>...</mn>
<mo>,</mo>
<mi>N</mi>
<mo>-</mo>
<mn>1</mn>
<mo>}</mo>
</mrow>
Wherein, (x, y) represents the position coordinates for the plaintext image pixel that decryption obtains, and (x', y') represents encrypted image pixel
Position coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068813.4A CN107944281A (en) | 2017-11-03 | 2017-11-03 | Papery printed document secrecy transmission system and method based on VR glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068813.4A CN107944281A (en) | 2017-11-03 | 2017-11-03 | Papery printed document secrecy transmission system and method based on VR glasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107944281A true CN107944281A (en) | 2018-04-20 |
Family
ID=61933231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711068813.4A Pending CN107944281A (en) | 2017-11-03 | 2017-11-03 | Papery printed document secrecy transmission system and method based on VR glasses |
Country Status (1)
| Country | Link |
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| CN (1) | CN107944281A (en) |
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| US20140289507A1 (en) * | 2006-10-11 | 2014-09-25 | Bassilic Technologies Llc | Method and system for secure distribution of selected content to be protected on an appliance-specific basis with definable permitted associated usage rights for the selected content |
| CN105809044A (en) * | 2016-03-07 | 2016-07-27 | 武汉华工安鼎信息技术有限责任公司 | Security transmission system and method with function of encryption by utilizing paper medium information |
| CN106133795A (en) * | 2014-01-17 | 2016-11-16 | 诺基亚技术有限公司 | For 3D being rendered the method and apparatus that in application, the media content of geo-location carries out visualization |
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2017
- 2017-11-03 CN CN201711068813.4A patent/CN107944281A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140289507A1 (en) * | 2006-10-11 | 2014-09-25 | Bassilic Technologies Llc | Method and system for secure distribution of selected content to be protected on an appliance-specific basis with definable permitted associated usage rights for the selected content |
| CN106133795A (en) * | 2014-01-17 | 2016-11-16 | 诺基亚技术有限公司 | For 3D being rendered the method and apparatus that in application, the media content of geo-location carries out visualization |
| CN105809044A (en) * | 2016-03-07 | 2016-07-27 | 武汉华工安鼎信息技术有限责任公司 | Security transmission system and method with function of encryption by utilizing paper medium information |
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