CN112463008A - Control method, device and system of electronic whiteboard and computer-readable storage medium - Google Patents
Control method, device and system of electronic whiteboard and computer-readable storage medium Download PDFInfo
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- CN112463008A CN112463008A CN201910849073.0A CN201910849073A CN112463008A CN 112463008 A CN112463008 A CN 112463008A CN 201910849073 A CN201910849073 A CN 201910849073A CN 112463008 A CN112463008 A CN 112463008A
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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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
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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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/048—Indexing scheme relating to G06F3/048
- G06F2203/04804—Transparency, e.g. transparent or translucent windows
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/048—Indexing scheme relating to G06F3/048
- G06F2203/04805—Virtual magnifying lens, i.e. window or frame movable on top of displayed information to enlarge it for better reading or selection
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The embodiment of the invention relates to a method, a device and a system for controlling an electronic whiteboard and a computer-readable storage medium. The control method includes, for example: responding to a user trigger operation to enter a content retrieval state, displaying a thumbnail in a user visual window to completely display a written area of an electronic whiteboard page, and creating a transparent layer with a retrieval frame on the thumbnail; responding to the touch operation of a user, moving the retrieval frame and amplifying and displaying the thumbnail content in the selection range of the retrieval frame; and in response to the quit content retrieval state, controlling the written area of the electronic whiteboard page to be restored to a non-thumbnail display state, and displaying the written content corresponding to the thumbnail content in the retrieval frame selection range in the written area at a designated position in the user viewable window when the content retrieval state is quit. The embodiment of the invention can realize that the retrieval and positioning of the writing content are more efficient and accurate, and the user operation experience is better.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a method and an apparatus for controlling an electronic whiteboard, a system for controlling an electronic whiteboard, and a computer-readable storage medium.
Background
In a conference screen system, an electronic whiteboard function is a very necessary function, a user needs to write and speak contents on an electronic whiteboard in real time and present the contents to participants, and often the size of a page design of the electronic whiteboard is almost infinite, after the user writes and slides to switch writing positions for many times, because the written contents are many, at this time, if the user wants to review a certain specific written content, the user needs to continuously and manually slide a touch screen to retrieve the contents until the specific content is seen and then stops, the retrieval is very slow, the efficiency is low, the participants need to wait, and the user experience is poor. Moreover, when the sliding speed is fast, the content to be retrieved cannot be accurately positioned due to system delay.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method for controlling an electronic whiteboard, a device for controlling an electronic whiteboard, a system for controlling an electronic whiteboard, and a computer-readable storage medium, so as to solve the technical problems of low efficiency and poor user experience of manual sliding search in the prior art, and improve the accuracy of content search, thereby improving conference efficiency and product user experience.
On one hand, the method for controlling the electronic whiteboard provided by the embodiment of the invention comprises the following steps: responding to a user trigger operation to enter a content retrieval state, displaying a thumbnail in a user visual window to completely display a written area of an electronic whiteboard page, and creating a transparent layer with a retrieval frame on the thumbnail; responding to the touch operation of a user, moving the search frame and amplifying and displaying the thumbnail content in the selected range of the search frame; and responding to the quit of the content retrieval state, controlling the written area of the electronic whiteboard page to be restored to a non-thumbnail display state, and displaying the written content corresponding to the thumbnail content in the retrieval frame selection range in the written area at the designated position in the user visible window when the content retrieval state is quitted.
According to the control method of the electronic whiteboard, writing content thumbnail display is adopted, the transparent layer with the retrieval frame is created, and the thumbnail content in the retrieval frame selection range is amplified and displayed, so that writing content retrieval and positioning are more efficient and accurate, and user operation experience is better.
In one embodiment of the invention, the retrieval frame is framed and transparent within the frame.
In an embodiment of the present invention, the thumbnail is the same as the size of the transparent layer.
In one embodiment of the invention, the designated location is a centered location within the user-viewable window.
On the other hand, an electronic whiteboard control apparatus provided in an embodiment of the present invention includes: the thumbnail display module is used for responding to the triggering operation of a user to enter a content retrieval state, displaying a thumbnail in a visual window of the user to completely display the written area of the electronic whiteboard page, and creating a transparent layer with a retrieval frame on the thumbnail; the content retrieval module is used for responding to the touch operation of a user, moving the retrieval frame and amplifying and displaying the thumbnail content in the selection range of the retrieval frame; and the page jump module is used for responding to the exit of the content retrieval state, controlling the written area of the electronic whiteboard page to be restored to a non-thumbnail display state, and displaying the written content corresponding to the thumbnail content in the selected range of the retrieval frame in the written area at the designated position in the user viewable window when the content retrieval state exits.
In one embodiment of the invention, the retrieval frame is framed and transparent within the frame.
In an embodiment of the present invention, the thumbnail is the same as the size of the transparent layer.
In one embodiment of the invention, the designated location is a centered location within the user-viewable window.
In another aspect, a control system for an electronic whiteboard provided in an embodiment of the present invention includes: a processor and a memory, wherein the memory stores instructions executed by the processor, and the instructions cause the processor to execute operations to perform any one of the aforementioned methods for controlling an electronic whiteboard.
In another aspect, an embodiment of the present invention provides a computer-readable storage medium, which is a non-volatile memory and stores program codes, where the program codes are executed by one or more processors to implement any one of the foregoing methods for controlling an electronic whiteboard.
In summary, the above technical solutions of the embodiments of the present invention have the following beneficial effects: the method, the device and the system for controlling the electronic whiteboard and the computer-readable storage medium of the embodiment adopt the design of displaying writing content thumbnails, creating transparent layers with retrieval frames, amplifying and displaying the thumbnail contents in the retrieval frame selection range, and the like, so that the writing content retrieval positioning is more efficient and accurate, and the user operation experience is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for controlling an electronic whiteboard according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a writing process state of the electronic whiteboard according to the embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating states of the processes of displaying an abbreviation of writing contents of an electronic whiteboard, retrieving contents, and jumping pages according to an embodiment of the present invention.
Fig. 4 is a schematic block diagram of a control device of an electronic whiteboard according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a control system of an electronic whiteboard according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a method for controlling an electronic whiteboard according to an embodiment of the present invention includes, for example, the steps of:
s11: responding to a user trigger operation to enter a content retrieval state, displaying a thumbnail in a user visual window to completely display a written area of an electronic whiteboard page, and creating a transparent layer with a retrieval frame on the thumbnail;
s13: responding to the touch operation of a user, moving the search frame and amplifying and displaying the thumbnail content in the selected range of the search frame; and
s15: and in response to the content retrieval state, controlling the written area of the electronic whiteboard page to be restored to a non-thumbnail display state, and displaying the written content corresponding to the thumbnail content in the retrieval frame selection range in the written area at the designated position in the user visible window when the content retrieval state is exited.
In order to more clearly understand the method for controlling the electronic whiteboard of the present embodiment, the following description will be made with reference to fig. 2 and 3.
Specifically, the control method of the electronic whiteboard of this embodiment may be applied to a display device with a touch function in a conference screen system, or applied to a podium with a touch function, and the podium may share screen content to the display device, such as an LED display screen, in a wireless or wired manner.
In view of the above, the control method of the electronic whiteboard of this embodiment is, for example, a technical scheme for retrieving and positioning content after roaming page writing of the electronic whiteboard, and the method searches and enlarges and displays the thumbnail of the writing content through the top-level retrieval frame in blocks through a multi-layer design, and when the required target content is retrieved, the retrieval frame is released to jump to the target content, thereby implementing fast content retrieval and positioning. The specific implementation scheme is as follows:
as shown in fig. 2, after a user writes a content (for example, a five-line writing content shown in fig. 2) of a user visual window UVW on the electronic whiteboard page, the electronic whiteboard page may be triggered to expand downward by a multi-point sliding touch gesture to provide a blank page area for the user to write continuously; the specific implementation scheme assumes that the target content to be retrieved is in the word 'patrinia'.
As mentioned above, the electronic whiteboard page control software defines a one-key search button or a touch gesture in advance, enters a content search state when the user clicks the button or executes the touch gesture, and the control software changes the electronic whiteboard page to a thumbnail state according to the written content range when entering the content search state, that is, displays a thumbnail in the user visible window UVW to completely display the written area in the user visible window UVW, and creates a transparent layer TLY with a search box CSB on the thumbnail (corresponding to step S11). The search box CSB is preferably framed and transparent in the frame, and can be moved arbitrarily in the transparent layer TLY according to a touch gesture of a user on the screen, and the thumbnail content in the selection range of the search box CSB is displayed in an enlarged manner, so that the user can identify the thumbnail content in the selection range of the search box CSB. Moreover, the transparent layer TLY and the thumbnail have the same size, for example, as shown in fig. 3, the thumbnail fills up the user visible window UVW, and the transparent layer TLY and the user visible window UVW are equal in size, which is favorable for simplifying a coordinate mapping algorithm between the content of the thumbnail in the transparent layer TLY and the thumbnail. The enlarged display mode here is, for example, a font display size of the thumbnail content in the selection range of the control search box CSB is the same as a font display size of the written content in the electronic whiteboard page when the written area of the electronic whiteboard page is in the non-thumbnail display state, or another appropriate font size. It should be noted that the search box CSB is always in the display state (for example, as shown in fig. 3) after entering the content search state and before exiting the content search state, or the search box CSB may be in the hidden state when the user does not perform the predetermined touch gesture (for example, the single-touch gesture) and in the display state when the user performs the predetermined touch gesture.
After entering the content retrieval state, the user may move the retrieval box CSB within the transparent layer TLY through a touch gesture to search for the thumbnail content "patrolling" in the thumbnail and enlarge and display the thumbnail content within the selection range of the retrieval box CSB (corresponding to step S13).
When the control software detects that the search box CSB stops moving for a preset time, or a touch gesture of the user is not detected within a certain time range, and the control software represents that a word of a target content "patrilant" to be searched is currently searched, the control software exits from the content search state, controls the written area of the electronic whiteboard page to be restored to a non-thumbnail display state, and displays written content (for example, "patrilant") corresponding to the thumbnail content within the search box selection range in the written area when the written area exits from the content search state at a specified position within the user visual window UVW (corresponding to step S15), that is, performs page jump display. In order to enable a user to quickly view target content to be retrieved, such as a 'patrolling' word, in a user visual window UVW after page jump display, the target content to be retrieved, such as the 'patrolling' word, is preferably displayed at a central position in the user visual window UVW; the center position here may be a center position in the height direction, a center position in the width direction, or both the height and width directions of the user visible window UVW.
In summary, the control method of the electronic whiteboard of the embodiment adopts the designs of thumbnail display of the writing content, creation of the transparent layer with the retrieval frame, and amplified display of the thumbnail content in the retrieval frame selection range, so that the writing content retrieval positioning is more efficient and accurate, and the user operation experience is better.
Referring to fig. 4, a control device 40 of an electronic whiteboard according to an embodiment of the present invention includes: a thumbnail display module 41, a content retrieval module 43, and a page jump module 45.
The thumbnail display module 41 is configured to enter a content retrieval state in response to a user trigger operation, so as to display a thumbnail in a user visual window to completely display a written area of an electronic whiteboard page, and create a transparent layer with a retrieval frame on the thumbnail; the content retrieval module 43 is configured to respond to a user touch operation, move the retrieval frame, and perform an enlarged display on the thumbnail content within the selection range of the retrieval frame; and the page jump module 45 is configured to, in response to exiting the content retrieval state, control the written area of the electronic whiteboard page to return to a non-thumbnail display state, and display, at a specified position within the user viewable window, written content in the written area corresponding to the thumbnail content within the retrieval frame selection range when exiting the content retrieval state.
As for the specific functional details of the thumbnail display module 41, the content retrieval module 43 and the page jump module 45, reference may be made to the related description of the control method of the electronic whiteboard in the foregoing embodiment, and no further description is provided herein. Further, it is worth mentioning that the thumbnail display module 41, the content retrieval module 43 and the page jump module 45 may be software modules, stored in a non-volatile memory and executed by a processor to perform the related operations to perform the control method of the electronic whiteboard in the foregoing embodiment.
Referring to fig. 5, a control system 50 of an electronic whiteboard according to an embodiment of the present invention includes: a processor 51 and a memory 53; the memory 53 stores instructions executed by the processor 51, and the instructions cause the processor 51 to execute operations to perform the control method of the electronic whiteboard described in the foregoing embodiment, for example.
In addition, referring to fig. 6, an embodiment of the present invention provides a computer-readable storage medium 60, which is a non-volatile memory and stores program codes, and when the program codes are executed by one or more processors, for example, the one or more processors are caused to execute the control method of the electronic whiteboard according to the foregoing embodiment.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structural contradictions, which do not violate the purpose of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and/or method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units/modules is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units/modules described as separate parts may or may not be physically separate, and parts displayed as units/modules may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units/modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, each functional unit/module in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
The integrated units/modules, which are implemented in the form of software functional units/modules, may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing one or more processors of a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A control method of an electronic whiteboard is characterized by comprising the following steps:
responding to a user trigger operation to enter a content retrieval state, displaying a thumbnail in a user visual window to completely display a written area of an electronic whiteboard page, and creating a transparent layer with a retrieval frame on the thumbnail;
responding to the touch operation of a user, moving the search frame and amplifying and displaying the thumbnail content in the selected range of the search frame; and
and in response to the content retrieval state, controlling the written area of the electronic whiteboard page to be restored to a non-thumbnail display state, and displaying the written content corresponding to the thumbnail content in the retrieval frame selection range in the written area at the designated position in the user visible window when the content retrieval state is exited.
2. The method for controlling an electronic whiteboard of claim 1, wherein the retrieval frame is framed and transparent inside the frame.
3. The method according to claim 1, wherein the thumbnail is the same size as the transparent layer.
4. The method of controlling an electronic whiteboard of claim 1, wherein the designated position is a centered position within the user-viewable window.
5. A control apparatus for an electronic whiteboard, comprising:
the thumbnail display module is used for responding to the triggering operation of a user to enter a content retrieval state, displaying a thumbnail in a visual window of the user to completely display the written area of the electronic whiteboard page, and creating a transparent layer with a retrieval frame on the thumbnail;
the content retrieval module is used for responding to the touch operation of a user, moving the retrieval frame and amplifying and displaying the thumbnail content in the selection range of the retrieval frame; and
and the page jump module is used for responding to the exit of the content retrieval state, controlling the written area of the electronic whiteboard page to be restored to a non-thumbnail display state, and displaying the written content corresponding to the thumbnail content in the selected range of the retrieval frame in the written area at the designated position in the user viewable window when the content retrieval state exits.
6. The control apparatus of an electronic whiteboard of claim 5, wherein the retrieving frame is framed and transparent in the frame.
7. The control apparatus of an electronic whiteboard of claim 5, wherein the thumbnail is the same size as the transparent layer.
8. The control apparatus of an electronic whiteboard of claim 5, wherein the designated position is a centered position within the user-viewable window.
9. A control system for an electronic whiteboard, comprising: a processor and a memory, wherein the memory stores instructions for execution by the processor, and the instructions cause the processor to perform operations to perform the method of controlling an electronic whiteboard of any of claims 1 to 4.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium is a non-volatile memory and stores program code, which is executed by one or more processors to implement the control method of an electronic whiteboard according to any one of claims 1 to 4.
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| CN201910849073.0A CN112463008A (en) | 2019-09-09 | 2019-09-09 | Control method, device and system of electronic whiteboard and computer-readable storage medium |
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| CN201910849073.0A CN112463008A (en) | 2019-09-09 | 2019-09-09 | Control method, device and system of electronic whiteboard and computer-readable storage medium |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5790114A (en) * | 1996-10-04 | 1998-08-04 | Microtouch Systems, Inc. | Electronic whiteboard with multi-functional user interface |
| CN103390011A (en) * | 2012-05-11 | 2013-11-13 | 株式会社东芝 | Electronic device and handwritten document search method |
| CN106933465A (en) * | 2015-12-31 | 2017-07-07 | 北京三星通信技术研究有限公司 | A kind of content display method and intelligence desktop terminal based on intelligence desktop |
-
2019
- 2019-09-09 CN CN201910849073.0A patent/CN112463008A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5790114A (en) * | 1996-10-04 | 1998-08-04 | Microtouch Systems, Inc. | Electronic whiteboard with multi-functional user interface |
| CN103390011A (en) * | 2012-05-11 | 2013-11-13 | 株式会社东芝 | Electronic device and handwritten document search method |
| CN106933465A (en) * | 2015-12-31 | 2017-07-07 | 北京三星通信技术研究有限公司 | A kind of content display method and intelligence desktop terminal based on intelligence desktop |
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Application publication date: 20210309 |