CN116737101A - Method for simultaneously displaying selective display labels on multiple terminals by using same OFD file - Google Patents
Method for simultaneously displaying selective display labels on multiple terminals by using same OFD file Download PDFInfo
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- CN116737101A CN116737101A CN202311001197.6A CN202311001197A CN116737101A CN 116737101 A CN116737101 A CN 116737101A CN 202311001197 A CN202311001197 A CN 202311001197A CN 116737101 A CN116737101 A CN 116737101A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000013475 authorization Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
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- 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
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
- G06F16/168—Details of user interfaces specifically adapted to file systems, e.g. browsing and visualisation, 2d or 3d GUIs
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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
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/16—Program or content traceability, e.g. by watermarking
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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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/44—Program or device authentication
-
- 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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/45—Structures or tools for the administration of authentication
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- Human Computer Interaction (AREA)
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- Technology Law (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Storage Device Security (AREA)
- Document Processing Apparatus (AREA)
Abstract
The invention provides a method for simultaneously displaying selective display labels on multiple terminals by the same OFD file, which comprises the steps of firstly, installing related readers on multiple different display terminal devices, opening an OFD combined file carrying diversified signature contents on a certain main control terminal, carrying out self-defined authorization on the contents of the file and the signature information on the display contents of the multiple terminals, paving watermarks on a file bottom plate according to the information of each displayed terminal, setting real-time change of the display contents of the display terminal according to the authority of the main control terminal, controlling the display of files of each terminal by the main control terminal through a communication protocol, avoiding the transmission of files such as video streams, and displaying the specific effect contents seen by the self-defined terminal according to the roles of different readers on the multi-terminal; the invention realizes that different readers of different terminals can read the same file and can distribute different identification contents, thereby realizing safe and controllable information synchronization.
Description
Technical Field
The invention relates to the field of multi-terminal file display, in particular to a method for simultaneously displaying selective display labels on multiple terminals of the same OFD file.
Background
With the development of society and technology, intelligent devices such as PC computers, notebook computers, tablet computers, smart phones and the like are increasingly used. When these intelligent devices are used for information interaction, file multi-end presentation is sometimes required between the devices. The file multi-screen sharing refers to sharing files in a network so as to realize the operation of reading the same file by multiple devices, and the file sharing is used for realizing collaborative office, so that the file multi-screen sharing is more and more widely applied to enterprises and offices of various units.
The following problems exist in the existing multi-screen sharing of files:
1. the terminal can view the signing information on line at the same time through desktop sharing, but can not view different signing contents according to the authority.
2. The desktop sharing is realized by adopting a video push stream mode, so that the desktop sharing is too much dependent on network resources and the like, and files and signing information cannot be checked with high quality.
3. When sharing in real time, the state of each terminal cannot be controlled, if the content is checked consistently by means of desktop sharing and the like, the operations of screen capturing, photographing and the like of each terminal cannot be controlled.
Disclosure of Invention
The invention aims to provide a method for simultaneously displaying selective display labels on multiple terminals by the same OFD file so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the method for simultaneously displaying the selective display labels on the multiple terminals by the same OFD file is characterized by comprising the following steps:
step S1: installing related readers on a plurality of different display terminal devices;
step S2: opening one or more OFD combined files carrying diversified signing contents at a certain master control terminal;
step S3: carrying out self-defined authorization on the display content of each content and signing information of the file in a plurality of terminals;
step S4: according to each displayed terminal information, a watermark is paved on a file bottom plate;
step S5: the display content of the display terminal changes in real time according to the authority setting of the main control terminal.
Preferably, the display terminal device comprises a computer, a mobile phone, a tablet, and a hong Meng Hezi.
Preferably, the diversified signing contents comprise keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing and AI signing information.
Preferably, the OFD file divides file contents displayed at each terminal into two parts of public display contents and authorized display contents.
Preferably, the public display content of the file is opened by default by each terminal.
Preferably, the custom authorization of the content displayed by each terminal includes the following steps:
step 1: the main control terminal is connected with the display terminal through a communication protocol or a network protocol;
step 2: the main control terminal sets different authorities for each terminal, and sends instructions to the display terminal through a communication protocol or a network protocol;
step 3: the display terminal displays public display content first, and then renders authorized display content according to the received instruction authority.
Preferably, the watermarking step comprises the steps of:
step 1: acquiring the model number and the display time of terminal equipment for opening an OFD combined file carrying the diversified signing contents;
step 2: adding the acquired terminal equipment model and display time information into a watermark display value to generate a unique watermark display value;
step 3: and adding the generated watermark display value to the file bottom plate of the reader.
Preferably, the device replacement can be performed as required in the operation process of the master control terminal, and the operation of the master control terminal comprises the following steps:
step 1: the master control terminal performs operations of scrolling, page turning and selecting on the file and adjusts the authority of the signing content when reading, so that the authority of signing information of each terminal can be authorized and canceled in real time;
step 2: and synchronously transmitting the instruction to the display terminal, and displaying the instruction in real time by the display terminal.
Preferably, when the terminal is loaded to each position of the file, whether the current equipment has authority to read and authorize the display content is verified, if the current equipment has authority to read, the file content and the signing content are displayed, and if the current equipment does not have the reading authority, only the public display content is displayed, and each terminal provides the simultaneous online video and voice function.
Preferably, the method is suitable for PDF, other format files, format data stream files and pictures.
Compared with the prior art, the invention has the beneficial effects that:
the master control terminal controls the file display of each terminal through the communication protocol, and the transmission of files such as video streams is not needed;
according to the invention, the main control terminal can customize the specific effect content seen by the terminal according to the roles of different readers, and selectively display different file parts and different signing labels on the multiple terminals;
the invention can realize that different readers of different terminals can read the same file and can also distribute different identification contents, thereby realizing safe and controllable information synchronization.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a display interface diagram of the master terminal a.
Fig. 3 is a display interface diagram showing terminal B.
Fig. 4 is a display interface diagram showing a terminal C.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
When several different terminals read OFD combined files carrying diversified signature contents, the main control equipment can adjust the authority of the display contents of other display terminals in real time so as to change the reading contents, and the specific operation comprises the following steps:
step S1: firstly, installing related readers on a plurality of different display terminal devices, wherein the display terminals comprise, but are not limited to, computers, mobile phones, tablets and hong Meng Hezi;
step S2: setting a certain display terminal as a main control terminal, opening one or more OFD combined files carrying diversified signing contents at the main control terminal, wherein the diversified signing contents comprise keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing and AI signing information, the opened OFD files divide file contents displayed at each terminal into two parts of public display contents and authorized display contents, and each display terminal defaults to open the public display contents of the files;
step S3: carrying out self-defined authorization on the display content of each content and signing information of the file in a plurality of terminals;
step S4: the main control terminal establishes connection with each display terminal through a communication protocol or a network protocol;
step S5: the main control terminal sets different authorities for each terminal, sets authorities for keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing, AI signing information and other authorized display contents carried by the OFD file, and sends an instruction of authorities setting to each display terminal through a communication protocol or a network protocol;
step S6: the display terminal firstly displays public display content, and then renders keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing, AI signing information and other authorized display content carried by the authorized OFD file according to the received instruction authority;
step S7: the main control terminal can be replaced according to the requirement in the operation process in the reading process, a user can scroll, turn pages and select the file when the main control terminal is in reading, and the authority of signing content can be adjusted, so that the keyboard input of each terminal, full-screen handwriting, amplified handwriting, voice signing, video signing, AI signing information and other authority of authorizing and displaying the content can be authorized and canceled in real time;
step S8: the main control terminal synchronously sends instructions to the display terminals, the display terminals display the authorized display contents in real time according to the instructions, when each display terminal is loaded to each position of the file, the prior evidence is given whether the current equipment has the authority to read the authorized display contents, if the current equipment has the authority to read, the file contents and keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing, AI signing information and other authorized display contents are displayed, if the current equipment does not have the reading authority, only public display contents are displayed, and the main control terminal and each display terminal provide the simultaneous online video and voice functions.
The invention realizes that different readers of different terminals can read the same file and can distribute different identification contents, thereby realizing safe and controllable information synchronization.
When the main control terminal and each display terminal display the OFD file content, the watermark is paved on the file, and the watermark paving step comprises the following steps:
step 1: acquiring the model number and the display time of terminal equipment for opening an OFD combined file carrying the diversified signing contents;
step 2: adding the acquired terminal equipment model and display time information into a watermark display value to generate a unique watermark display value;
step 3: and adding the generated watermark display value segment to the file bottom plate of the reader.
The method comprises the steps that a terminal A is a main control terminal, as shown in a second drawing, an OFD file is opened, a plurality of signature information is carried in the OFD file, the authority of keyboard input, full-screen handwriting, amplified handwriting, voice signature, video signature, AI signature information and other authorized display contents in the OFD file are set through the terminal A, an instruction is sent to a display terminal, the display terminal displays authorized display contents in real time according to the instruction, the display effects of the terminal B and the terminal C are as shown in a third drawing and a fourth drawing, when the terminal B and the terminal C are loaded to each position of the file, whether the current equipment has authority to read the authorized display contents is verified, if the current equipment has authority to read, the file contents and the keyboard input, full-screen handwriting, amplified handwriting, voice signature, video signature, AI signature information and other authorized display contents are displayed, and if the current equipment does not have the authority to read, the public display contents are only displayed, and the terminal A, the terminal B and the terminal C provide the function of online video and voice simultaneously.
In the reading process, the user of the terminal A can perform operations of scrolling, page turning and selecting files and adjust the authority of signing content, and can authorize and cancel the authority of each terminal keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing, AI signing information and other authorized display content in real time.
The main control terminal can be replaced by the terminal B or the terminal C according to the requirement in the operation process, the keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing, AI signing information and other authorization display content authorities in the OFD file are set on the replaced main control terminal B, at this time, the terminal A and the terminal C are display terminals, the terminal B can perform scrolling, page turning and selected operations on the file and adjust the signing content authorities, the terminal B can authorize and cancel the keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing, AI signing information and other authorization display content authorities of each terminal in real time, the terminal A and the terminal C display the authorization display content in real time according to the instruction, and if the current device has the authorization reading authorization display content, the file content and the keyboard input, full-screen handwriting, amplified, voice signing, video signing, AI information and other authorization display content are read, and if the current device does not have the public authorization display content.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The method for simultaneously displaying the selective display labels on the multiple terminals by the same OFD file is characterized by comprising the following steps:
step S1: installing related readers on a plurality of different display terminal devices;
step S2: opening one or more OFD combined files carrying diversified signing contents at a certain master control terminal;
step S3: carrying out self-defined authorization on the display content of each content and signing information of the file in a plurality of terminals;
step S4: according to each displayed terminal information, a watermark is paved on a file bottom plate;
step S5: the display content of the display terminal changes in real time according to the authority setting of the main control terminal.
2. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: the display terminal equipment comprises a computer, a mobile phone, a tablet and a hong Meng Hezi.
3. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: the diversified signing contents comprise keyboard input, full-screen handwriting, amplified handwriting, voice signing, video signing and AI signing information.
4. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: the OFD file divides file content displayed at each terminal into public display content and authorized display content.
5. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: and the public display content of the file is opened by default by each terminal.
6. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: the self-defining authorization of the display content of each terminal comprises the following steps:
step 1: the main control terminal is connected with the display terminal through a communication protocol or a network protocol;
step 2: the main control terminal sets different authorities for each terminal, and sends instructions to the display terminal through a communication protocol or a network protocol;
step 3: the display terminal displays public display content first, and then renders authorized display content according to the received instruction authority.
7. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: the watermarking step comprises the steps of:
step 1: acquiring the model number and the display time of terminal equipment for opening an OFD combined file carrying the diversified signing contents;
step 2: adding the acquired terminal equipment model and display time information into a watermark display value to generate a unique watermark display value;
step 3: and adding the generated watermark display value to the file bottom plate of the reader.
8. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: the main control terminal can be replaced according to the need in the operation process, and the main control terminal operation comprises the following steps:
step 1: the master control terminal performs operations of scrolling, page turning and selecting on the file and adjusts the authority of the signing content when reading, so that the authority of signing information of each terminal can be authorized and canceled in real time;
step 2: and synchronously transmitting the instruction to the display terminal, and displaying the instruction in real time by the display terminal.
9. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: when the terminal is loaded to each position of the file, whether the current equipment has authority to read and authorize the display content is verified, if the current equipment has authority to read, the file content and the signing content are displayed, and if the current equipment does not have the reading authority, only the public display content is displayed, and each terminal provides the function of simultaneously on-line video and voice.
10. The method for simultaneously displaying selective display annotations on multiple terminals by using the same OFD file according to claim 1, wherein the method comprises the following steps of: the method is suitable for PDF, other format files, format data stream files and pictures.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311001197.6A CN116737101B (en) | 2023-08-10 | 2023-08-10 | Method for simultaneously displaying selective display labels on multiple terminals by using same OFD file |
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| CN202311001197.6A CN116737101B (en) | 2023-08-10 | 2023-08-10 | Method for simultaneously displaying selective display labels on multiple terminals by using same OFD file |
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Cited By (2)
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