CN115048023A

CN115048023A - Electronic note restoring method, device, medium and interactive panel

Info

Publication number: CN115048023A
Application number: CN202110254122.3A
Authority: CN
Inventors: 李伟坚
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shizhen Information Technology Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shizhen Information Technology Co Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2022-09-13
Anticipated expiration: 2041-03-09
Also published as: CN115048023B

Abstract

The embodiment of the application provides an electronic note restoring method, an electronic note restoring device, a medium and an interactive panel, wherein the method comprises the following steps: when writing notes on a writing page of the electronic whiteboard, responding to the triggering recording operation of at least one group of first writing notes, and storing handwriting data corresponding to the first writing notes as note nodes; responding to the triggering and saving operation of the writing page, and storing a second writing note displayed in the writing page and a note node triggering and recording in the writing page in an associated manner; when the first writing pen note is restored on the electronic whiteboard, responding to the triggering opening operation of a writing page, and displaying a second writing note and a list of note nodes on the writing page; and responding to the triggering operation of the note node, and restoring the writing process of the first written note on the writing page according to the handwriting data corresponding to the note node. According to the method and the device, the writing note is restored by storing the handwriting data, the storage space can be reduced, the note to be restored can be quickly obtained, and the retrieval efficiency is improved.

Description

Electronic note restoring method, device, medium and interactive panel

Technical Field

The embodiment of the application relates to the field of note restoring, in particular to an electronic note restoring method, device, medium and interactive panel.

Background

An electronic whiteboard is widely applied to the conference field, the teaching field and the like as a digital demonstration device capable of replacing a traditional blackboard and chalk, and generally has a whiteboard writing function, specifically, writing operation is performed on a display screen of the electronic whiteboard, for example, a user writes notes by using the electronic whiteboard. Because a plurality of handwriting can be written in one note, after a long time, the middle thinking process is always forgotten when the note is written, some key thinking nodes cannot be reproduced, and the whole thinking process cannot be replayed. In some technologies, a user wants to record key thinking nodes to reply the thinking process in the writing process, and the user can only use the screen recording function to store the note writing process into a video file; and finding out the corresponding video file for playing when restoring and reproducing. In the process of implementing the invention, the inventor finds that at least the following problems exist in some technologies: the video file occupies a large storage space of the device; when a large number of stored video files exist, the video corresponding to the note to be restored cannot be quickly retrieved.

Disclosure of Invention

In order to overcome the problems in the related art, the application provides an electronic note restoring method, device, medium and interactive flat plate, which have the advantages of small storage space and capability of quickly retrieving and restoring the required electronic notes.

According to a first aspect of the embodiments of the present application, there is provided an electronic note restoring method, including the steps of:

when writing notes on a writing page of the electronic whiteboard, responding to the triggering recording operation of at least one group of first writing notes, and storing the handwriting data corresponding to the first writing notes as note nodes; the handwriting data is used for recording the writing process of the first writing note;

in response to the triggered saving operation of the writing page, storing a second writing note displayed in the writing page and the note node triggered and recorded in the writing page in an associated mode; the first writing pen is used for recording part or all notes in the second writing note generation process;

when the first writing pen note is restored on the electronic whiteboard, responding to the triggering opening operation of the writing page, and displaying a second writing note and the list of note nodes on the writing page;

and responding to the triggering operation of the note node, and restoring the writing process of the first written note on the writing page according to the handwriting data corresponding to the note node so as to cover the second written note.

According to a second aspect of the embodiments of the present application, there is provided an electronic note restoring apparatus, including:

the electronic whiteboard writing system comprises a note node acquisition module, a note node processing module and a note node processing module, wherein the note node acquisition module is used for responding to the triggering recording operation of at least one group of first writing notes when writing notes on a writing page of the electronic whiteboard and storing handwriting data corresponding to the first writing notes as note nodes; the handwriting data is used for recording the writing process of the first writing note;

the associated storage module is used for responding to the triggered saving operation of the writing page and storing a second writing note displayed in the writing page and the note node triggered and recorded in the writing page in an associated mode; the first writing pen is used for recording part or all notes in the second writing note generation process;

the display module is used for responding to the triggering opening operation of the writing page when the first writing note is restored on the electronic whiteboard and displaying a second writing note and the list of the note nodes on the writing page;

and the note restoring module is used for responding to the triggering operation of the note node and restoring the writing process of the first writing note on the writing page according to the handwriting data corresponding to the note node so as to cover the second writing note.

According to a third aspect of embodiments of the present application, there is provided an interactive tablet comprising a touch screen, a processor and a memory; the memory stores a computer program adapted to be loaded by the processor and to perform the electronic note restoring method as described above.

According to a fourth aspect of embodiments of the present application, there is provided a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the electronic note restoring method as described above.

When writing on a writing page of an electronic whiteboard, storing handwriting data corresponding to at least one group of first writing notes as note nodes by responding to triggering record operation of the at least one group of first writing notes, and further storing a second writing note displayed on the writing page and the note nodes triggered and recorded on the writing page in an associated manner by responding to the triggering storage operation of the writing page; when the first writing note is restored on the electronic whiteboard, responding to the triggering opening operation of the writing page, displaying a second writing note and the list of the note nodes on the writing page, responding to the triggering operation of the note nodes, and restoring the writing process of the first writing note on the writing page according to the handwriting data corresponding to the note nodes so as to cover the second writing note. The writing note is restored by storing the handwriting data, so that the storage space can be reduced; the displayed second writing note of the writing page and the note node triggered and recorded in the writing page are stored in an associated mode, so that the first writing note needing to be restored can be further searched in the list of the note node according to the second writing note, the writing process of the note needing to be restored can be quickly obtained, and the retrieval efficiency is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a flow chart of an electronic note restoring method according to an embodiment of the present application;

FIG. 2 is a storage diagram of a note node according to an embodiment of the present application;

FIG. 3 is a flowchart illustrating a method for obtaining note nodes according to an embodiment of the present application;

FIG. 4 is a flow diagram illustrating a method of displaying note nodes according to one embodiment of the present application;

FIG. 5 is a diagram illustrating the display of a first written note written by a teacher on a written page according to one embodiment of the present application;

FIG. 6 is a diagram illustrating the display of a second written note written by a teacher on a written page according to one embodiment of the present application;

FIG. 7 is a diagram illustrating a final display effect after triggering the note node 1List according to an embodiment of the present application;

FIG. 8 is a diagram illustrating a final display effect after a control is deactivated and restored by triggering a note according to an embodiment of the present application;

FIG. 9 is a schematic block diagram of an electronic note retrieval apparatus shown in one embodiment of the present application;

FIG. 10 is a schematic block diagram of a note node capture module shown in one embodiment of the present application;

FIG. 11 is a schematic block diagram of a display module shown in one embodiment of the present application;

fig. 12 is a schematic structural diagram of an interactive tablet according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.

In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The word "if/if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination". Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The electronic note restoring method shown in the embodiment of the application may be executed by an electronic note restoring device, the electronic note restoring device may be implemented in a software and/or hardware manner, and the electronic note restoring device may be formed by two or more physical entities or may be formed by one physical entity. For example, the electronic note restoring device may be an intelligent device such as a computer, a mobile phone, a tablet or an intelligent interactive tablet.

For convenience of understanding, the interactive tablet is exemplarily described as the electronic note restoring device in the embodiment. The interactive panel can be an integrated device which controls the content displayed on the display panel and realizes man-machine interaction operation through a touch technology, and integrates one or more functions of a projector, an electronic whiteboard, a curtain, a sound, a television, a video conference terminal and the like.

Generally, the interactive tablet includes at least one display screen. For example, the interactive tablet is configured with a display screen having a touch function, and the display screen may be a capacitive screen, a resistive screen, or an electromagnetic screen. In an embodiment, a user may perform a touch operation by touching the display screen with a finger or a stylus, and accordingly, the interactive tablet detects the touch position, determines a response scheme according to the touch operation corresponding to the touch position, and then performs a response to implement a touch function. For example, the corresponding touch operation is determined as handwriting according to the touch position, and at this time, the response scheme is displaying handwriting. Typically, the interactive tablet is installed with at least one type of operating system, wherein the operating system includes, but is not limited to, an android system, a Linux system, and a Windows system. In one embodiment, the interactive tablet may install at least one application based on the operating system, which in an embodiment is illustratively described as an application having writing functionality. For example, an electronic whiteboard application having a writing function is installed in the interactive tablet. The application program may be an application program carried by an operating system, or an application program downloaded from a third-party device or a server, or the interactive tablet may be the application program itself. Optionally, the electronic whiteboard application has other editing functions besides the writing function, such as writing, inserting a form, inserting a picture, inserting a multimedia, inserting a graphic, and drawing a form.

The electronic note restoring method can be applied to the fields of meetings, teaching and the like, and in order to better understand the application, an application scene of the application in the teaching field will be introduced below. The application scene of the electronic note restoring method comprises an interactive flat plate; an electronic whiteboard runs in the interactive tablet, and an application scenario of an exemplary embodiment is as follows: a teacher writes notes on a writing page of the electronic whiteboard to explain thought by opening the electronic whiteboard, the teacher generates at least one key first writing note in the process of explaining the thought, and the teacher can record handwriting data corresponding to the first writing note as a note node so as to obtain at least one note node; and then, after explaining the thought, a teacher stores a second writing note currently displayed on the writing page on the electronic whiteboard, namely a thought explanation result, and closes the writing page, wherein it needs to be explained that the first writing pen is marked as a part or all of the notes in the second writing note generating process. When the student needs to reply the explanation thought of the teacher, the student opens the writing page first, then will show on the writing page the list of note and note node is written to the second, at this moment, if the student according to when the note can not understand the explanation thought completely to the note is written to the second, then can be through clicking one by one note node comes to reply each key the writing process of note is write to the first, and then realizes that the student can fully understand the solution thought.

The implementation of the electronic note restoring method in the application scenario will be described below with reference to specific embodiments.

Example 1

The electronic note restoring method disclosed by the embodiment of the application is applied to electronic equipment, and the electronic equipment is taken as an interactive panel for description.

The electronic note restoring method provided by the embodiment of the present application will be described in detail below with reference to fig. 1 to 8.

Referring to fig. 1, an electronic note restoring method provided in an embodiment of the present application includes the following steps:

step S110: when writing notes on a writing page of the electronic whiteboard, responding to a triggering recording operation of at least one group of first writing notes, and storing handwriting data corresponding to the first writing notes as note nodes; the handwriting data is used for recording the writing process of the first written note.

When the electronic whiteboard is opened, a writing page is presented, and an operable area is arranged in the writing page, and writing can be carried out on the operable area. Optionally, the first written note may be all written contents on the electronic whiteboard before the recording operation is triggered, and the first written note may also be written contents on the electronic whiteboard between two adjacent triggered recording operations. The written content may include written text, erased text, inserted graphics, inserted forms, and the like.

It can be understood that, when the first writing note may be all writing contents on the electronic whiteboard before the recording operation is triggered, the handwriting data corresponding to the first writing note is handwriting data corresponding to all writing contents on the electronic whiteboard, and the handwriting data is stored as a note node, so that when the writing note is restored through the note node, the writing process of all writing contents on the electronic whiteboard before the recording operation is triggered is restored. As shown in fig. 2, for example, after the first writing is performed on the electronic whiteboard, writing scripts 1 are generated, and at this time, the first trigger recording operation is performed, and then writing data corresponding to all writing contents before the first trigger recording operation, that is, writing scripts 1, are stored as a note node 1 List; then, after the electronic whiteboard is written for the second time, writing handwriting 2 is generated, and at the moment, the second triggering recording operation is performed, and handwriting data corresponding to all writing contents before the second triggering recording operation, namely writing handwriting 1 and writing handwriting 2, are stored as a note node 2 List; and finally, after the electronic whiteboard is written for the third time, generating writing handwriting 3, performing a third trigger recording operation at the moment, and storing handwriting data corresponding to all writing contents before the third trigger recording operation, namely writing handwriting 1, writing handwriting 2 and writing handwriting 3, as a note node 3 List. And then, the note node 1List, the note node 2List and the note node 3List are stored as a note node set RecordList, and the note node set RecordList is stored in a database. When the note node 1List is clicked, the note node 1List is found from the note node set RecordList in the database and is placed in the memory, and the writing handwriting 1 in the note node 1List is read from the memory, so that the first writing process is restored on the electronic whiteboard. When the note node 2List is clicked, the note node 2List is found from the note node set RecordList in the database and is placed in the memory, and then the writing handwriting 1 and the writing handwriting 2 in the note node 2List are read from the memory, so that the processes of the first writing and the second writing are sequentially restored on the electronic whiteboard. When the note node 3List is clicked, the note node 3List is found from the note node set RecordList in the database and is placed in the memory, and then the writing handwriting 1, the writing handwriting 2 and the writing handwriting 3 in the note node 3List are read from the memory, so that the processes of the first writing, the second writing and the third writing are sequentially restored on the electronic whiteboard.

It can be understood that when the first writing pen records writing content on the electronic whiteboard between two adjacent triggered recording operations, the handwriting data corresponding to the writing note is the handwriting data corresponding to the writing content on the electronic whiteboard between the triggered recording operations, and the handwriting data is stored as a note node, so that when the writing pen is restored through the note node, the writing content on the electronic whiteboard between the two adjacent triggered recording operations is restored.

In an embodiment, since the nodes are triggered successively, in order to save the storage space of the note node, the first writing pen records all writing contents on the electronic whiteboard before the recording operation is triggered, but the writing data corresponding to the first writing note is the writing data corresponding to the writing contents on the electronic whiteboard between two adjacent triggered recording operations, and further when the writing pen is restored through the note node, the writing data of all nodes before the note node is acquired, and the writing data of the note node is sequentially read according to the triggering time sequence of the note node, so as to restore all the writing contents on the electronic whiteboard before the triggered recording operation.

In one embodiment, the handwriting data includes writing paths of all the handwriting corresponding to the first writing note, corresponding writing coordinates, corresponding pressure values, and a display layer on the electronic whiteboard. And restoring the generation process of each handwriting of the first writing note on the electronic whiteboard according to the writing paths, the corresponding writing coordinates, the corresponding pressure values and the display layers on the electronic whiteboard of all the handwriting corresponding to the first writing note, so that the generation process of the writing note can be intuitively reviewed.

Step S120: in response to the triggered saving operation of the writing page, storing a second writing note displayed in the writing page and the note node triggered and recorded in the writing page in an associated manner; and the first writing pen is used for recording part or all notes in the second writing note generation process.

And the first writing pen is used for recording part or all notes in the second writing note generating process. In one embodiment, the second written note displayed may include the first written note; for example, after the writing page writes 1,2, and 3, the user performs a trigger recording operation, and then determines 1,2, and 3 as a first writing note, and further saves the first writing note as a note node; and then, continuing to write 4,5 on the writing page, wherein the writing page displays 1,2,3,4,5, and if the user triggers a save operation on the writing page, a second writing note displayed in the writing page includes 1,2,3,4,5, and obviously the second writing note includes the first writing note. In an embodiment, the displayed second written note may not include the first written note, for example, after the written page writes 1,2, and 3, the user performs a triggering recording operation, and determines 1,2, and 3 as the first written note, and then saves the first written note as a note node; and then erasing 1,2 and 3 on the writing page, continuously writing 4 and 5 on the writing page, at this time, displaying 4 and 5 on the writing page, if the user triggers a saving operation on the writing page at this time, recording a second writing pen displayed in the writing page as 4 and 5, and obviously, at this time, the second writing note does not include the first writing note corresponding to the note node.

In an embodiment, when the displayed second written note of the written page and the note node of the written page trigger record are stored in association, the displayed second written note of the written page may be stored as a written document and stored in a database, and when the written document is stored, the note node of the written page trigger record may be stored as note data corresponding to the written document and stored in the database, and meanwhile, when the written document is stored, the storage path of the note data may be added at the same time, and then the written document and the note document are stored in association with each other, so that when the written document is opened, the note node of the written document is triggered to display handwriting in the written document. It should be noted that the written document and the note data are independent from each other and do not interfere with each other, that is, the content of the note data is not affected by the content of the writing in the written document. In one embodiment, the handwriting data within the note node is persisted in a device storage system.

Step S130: and when the first writing pen note is restored on the electronic whiteboard, responding to the triggering opening operation of the writing page, and displaying a second writing note and the list of the note nodes on the writing page.

In an embodiment, after the writing page is triggered and stored, the writing page is stored in an interactive flat plate according to a format preset by the electronic whiteboard, a second writing note displayed in the writing page and the note node triggered and recorded in the writing page are stored in an associated manner, if the writing page is closed, an icon corresponding to the writing page is displayed on the interactive flat plate, and after the icon corresponding to the writing page is clicked, the opening operation of the writing page can be triggered, and the second writing note and the list of the note nodes are displayed on the writing page.

It should be noted that, after the triggered saving operation of the writing page is performed, the writing page is stored in an interactive tablet according to a format preset by the electronic whiteboard, a second writing note displayed in the writing page and the note node triggered and recorded in the writing page are stored in an associated manner, if the writing page is not closed, a list of the writing note nodes is also displayed in the writing page, and further, when the triggered operation of the note node is responded, the writing process of the first writing note is restored on the writing page according to the handwriting data corresponding to the note node, so as to cover the second writing note.

Step S140: and responding to the triggering operation of the note node, and restoring the writing process of the first written note on the writing page according to the handwriting data corresponding to the note node so as to cover the second written note.

In this embodiment, the second written note is displayed on the written page first, which may visually assist the user to know the content of the written note, and when there is a doubt about the content of the second written note, the note node may be triggered, and the first written note may be restored to know the content of the second written note, so as to relieve the doubt.

Referring to fig. 3, in an embodiment, a note recording control RecordButton is displayed on a writing page of the electronic whiteboard; in step S110, the storing, in response to the recording triggering operation on at least one group of first writing notes, handwriting data corresponding to the first writing notes as note nodes includes:

step S111: responding to the triggering recording operation of the note recording control, and determining writing content corresponding to the writing operation on the writing page of the electronic whiteboard before the note recording control is triggered as the first writing note;

step S112: and storing the handwriting data corresponding to the first writing note as the note node.

According to the embodiment of the application, the note recording control Recordbutton is arranged on the writing page of the electronic whiteboard, so that a user can actively trigger the storage of the writing note needing to be stored through the note recording control Recordbutton, and the user can store the required writing note according to actual conditions.

In one embodiment, in step S110, after the storing, in response to the recording triggering operation on at least one group of first writing notes, handwriting data corresponding to the first writing notes as note nodes, the method further includes: determining a time triggering the operation of recording the first written note as a generation time of the note node. In step S130, when the list of note nodes is displayed on the writing page, the method includes: and displaying the note nodes in sequence according to the generation time. Displaying the note nodes according to the generation time of the note nodes can facilitate a user to restore the written notes in sequence.

In one embodiment, in step S110, after the storing, in response to the recording triggering operation on at least one group of first writing notes, handwriting data corresponding to the first writing notes as note nodes, the method further includes: and acquiring the name and/or the label of the note node. In step S130, when the list of note nodes is displayed on the writing page, the method includes: and displaying the name and/or the label of the note node. The name of the note node is used for uniquely identifying the note node, and the label of the note node is used for classifying the note node so as to identify the note node of a certain classification. And displaying the name and/or the label of the note node in the displayed list of the note node, so that the user can quickly retrieve the written note needing to be restored. In an embodiment, after the handwriting data corresponding to at least one group of first writing notes is stored as a note node in response to the recording triggering operation on at least one group of first writing notes, a floating popup is displayed on the writing page, a name naming box and/or a label naming box of the note node are/is arranged on the popup, and a user can input the name and/or the label of the note node on the name naming box and/or the label naming box to facilitate subsequent searching of the note node.

Referring to fig. 4, in an embodiment, in step S130, the displaying a second written note and the list of note nodes on the written page in response to the triggering open operation on the written page includes:

step S131: responding to the triggering opening operation of the writing page, and displaying the second writing note and a note restoring control on the writing page;

step S132: and responding to the triggering operation of the note restoring control, and displaying the list of the note nodes.

The method comprises the steps that a list window RestoreDialog can be popped up by clicking a note restoring control RestoreButton, a list is borne in the RestoreDialog, note nodes stored before are displayed, a search filtering frame is further arranged in the RestoreDialog, time, names and/or labels of the note nodes can be input into the search filtering frame, and therefore a user can conveniently and quickly filter and display the note nodes, and handwriting data needing to be restored can be quickly selected.

In one embodiment, in step S130, the opening operation in response to the triggering on the writing page further includes, after the writing page displays the second written note and the list of note nodes: and displaying a note canceling and restoring control. Specifically, a note-canceling restore control undo button is displayed in the listwindow resutoredialog. In step S140, after the responding to the triggering operation on the note node, erasing the written content on the writing page according to the handwriting data stored in the note node, and restoring the writing process of the written note, the method further includes: and when the restored first written note is not the target written note, responding to the triggering operation of the note canceling and restoring control, erasing the first written note, and displaying the second written note. By setting the note canceling and restoring control, the writing notes corresponding to the note nodes with a plurality of steps of writing traces can be used as units for canceling and redoing, multi-step canceling and redoing can be achieved without canceling and redoing step by step, moreover, the trace data of the nodes of the application are stored in the equipment storage system through the database in a persistent mode, the node is canceled and redoed after the note is repeatedly opened, and the problem that the redo cannot be canceled any more after the note is reopened is solved.

For ease of understanding, the following description will be made in conjunction with an application scenario in the field of teaching.

A teacher writes notes on a writing page of the electronic whiteboard to explain ideas by opening the electronic whiteboard, for example, please refer to fig. 5, and writes 1,2,3,4,5 on the writing page, at this time, the teacher thinks that a writing pen at this time is a key thinking node, and triggers a recording operation through a note recording control record button, determines 1,2,3,4,5 as a first writing note, and further records handwriting data corresponding to the first writing note as a note node 1 List; then, the teacher deletes 4,5 and writes 6 on the writing page, at this time, the teacher considers that the writing note at this time is also a key thinking node, the recording operation is triggered through the note recording control RecordButton, the deletion of 4,5 and the writing of 6 are also determined as a first writing note, and further the handwriting data corresponding to the first writing note is recorded as a note node 2 List; and then, the teacher writes 7 and 8 on the writing page, at this time, the teacher considers that the writing note at this time is also a key thinking node, the recording operation is triggered through the note recording control RecordButton, the writing 7 and 8 are also determined as a first writing note, and further the handwriting data corresponding to the first writing note is recorded as a note node 3 List. Then, the teacher saves the writing page, please refer to fig. 6, at this time, the second writing pen displayed on the writing page is marked as 1,2,3,6,7,8, and finally, the teacher closes the writing page to show that the explanation of the idea is completed.

When the student needs to reply the explanation thought of the teacher, the student opens the writing page first, and the second written notes 1,2,3,6,7,8 and the note restoring control RestoreButton are displayed on the writing page. List of note nodes note node 1List, note node 2List, and note node 3 List. At this time, if the student cannot completely understand what 1,2, and 3 is according to the second written note, the student may restore the control RestoreButton through the note, and then display the note node 1List, the note node 2List, and the note node 3 List; referring to fig. 7, the student triggers the note node 1List to display the writing processes of 1,2,3,4, and 5 on the writing page, and further display 1,2,3,4, and 5 on the writing interface. If the student cannot completely understand what the 1,2,3,6 is according to the second written note, the writing process of the 1,2,3,4,5 can be displayed on the writing page by triggering the note node 2List, and then the writing process of deleting 4,5, writing 6 is displayed; if the student can not completely understand what 1,2,3,6,7,8 is according to the second writing note, the student can trigger note node 3List, the writing page displays the writing processes of 1,2,3,4,5, then displays the writing processes of deleting 4,5, writing 6, and finally displays the writing processes of writing 7,8, thereby enabling the student to fully understand the thought of solving the problems. Referring to fig. 8, when the student finds that the writing process of 1,2,3,4, and 5 is not desirable after displaying the writing process of 1,2,3,4, and 5 on the writing page by triggering the note node 1List, the student can cancel the restore control undo by triggering the note, erase 1,2,3,4, and 5 by one key, and redisplay the second written note 1,2,3,6,7, and 8.

Example 2

The following is an example of the apparatus of the present application, which may be used to perform the method of example 1 of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, please refer to the contents of the method in embodiment 1 of the present application.

Referring to fig. 9, an electronic note restoring apparatus 200 disclosed in the embodiment of the present application includes:

a note node obtaining module 210, configured to, when writing notes on a writing page of an electronic whiteboard, respond to a triggered recording operation on at least one group of first writing notes, and store handwriting data corresponding to the first writing notes as note nodes; the handwriting data is used for recording the writing process of the first writing note;

the association storage module 220 is configured to, in response to a triggered saving operation on the writing page, store a second writing note displayed in the writing page and the note node triggered and recorded in the writing page in an association manner; the first writing pen is used for recording part or all notes in the second writing note generating process;

a display module 230, configured to, when the first writing note is restored on the electronic whiteboard, respond to a trigger open operation on the writing page, and display a second writing note and the list of note nodes on the writing page;

a note restoring module 240, configured to restore, in response to the triggering operation of the note node, the writing process of the first written note on the writing page according to the handwriting data corresponding to the note node, so as to cover the second written note.

When writing on a writing page of an electronic whiteboard, storing handwriting data corresponding to at least one group of first writing notes as note nodes by responding to triggering record operation of the at least one group of first writing notes, and further storing a second writing note displayed on the writing page and the note nodes triggered and recorded on the writing page in an associated manner by responding to the triggering storage operation of the writing page; when the first writing note is restored on the electronic whiteboard, responding to the triggering opening operation of the writing page, displaying a second writing note and the list of the note nodes on the writing page, responding to the triggering operation of the note nodes, and restoring the writing process of the first writing note on the writing page according to the handwriting data corresponding to the note nodes so as to cover the second writing note. The writing note is restored by storing the handwriting data, so that the storage space can be reduced; the displayed second writing note of the writing page and the note node triggered and recorded in the writing page are stored in an associated mode, and then the first writing note needing to be restored can be further searched in the list of the note node according to the second writing note, so that the writing process of the note needing to be restored can be obtained quickly, and the retrieval efficiency is improved.

Referring to fig. 10, in an embodiment, a note-taking control RecordButton is displayed on a writing page of the electronic whiteboard; the note node obtaining module 210 includes:

the writing trace determining module 211, configured to determine, in response to a triggering and recording operation of the note recording control, writing content corresponding to a writing operation on a writing page of the electronic whiteboard before the note recording control is triggered as the first writing trace;

and a node determining module 212, configured to store the handwriting data corresponding to the first writing note as the note node.

In an embodiment, the note node obtaining module 210 further includes a time determining module, configured to determine a time triggering an operation of recording the first written note as a generation time of the note node. The display module 230, when displaying the list of note nodes on the writing page, is configured to: and displaying the note nodes in sequence according to the generation time. Displaying the note nodes according to the generation time of the note nodes can facilitate a user to restore the written notes in sequence.

In one embodiment, the note node obtaining module 210 further includes a naming module, and the naming module obtains the name and/or the tag of the note node. The display module 230, when displaying the list of note nodes on the writing page, further includes: and displaying the name and/or the label of the note node. In an embodiment, after the handwriting data corresponding to at least one group of first writing notes is stored as a note node in response to the recording triggering operation on at least one group of first writing notes, a floating popup is displayed on the writing page, a name naming box and/or a label naming box of the note node are/is arranged on the popup, and a user can input the name and/or the label of the note node on the name naming box and/or the label naming box to facilitate subsequent searching of the note node.

Referring to fig. 11, in one embodiment, the display module 230 includes:

the first display module 231 is configured to display the second written note and the note restoring control on the writing page in response to a trigger opening operation on the writing page;

a second display module 232, configured to display the list of note nodes in response to a triggering operation of the note restoring control.

The method comprises the steps that a list window RestoreDialog can be popped up by clicking a note restoring control RestoreButton, a list is borne in the RestoreDialog, the note nodes stored before are displayed, a search filter box is further arranged in the RestoreDialog of the list window, time, names and/or labels of the note nodes can be input into the search filter box, and therefore a user can conveniently and quickly filter and display the note nodes, and handwriting data needing to be restored can be quickly selected.

In one embodiment, the display module 230 further comprises a control for displaying note undo. Specifically, a note-canceling restore control undo button is displayed in the listwindow resutoredialog. The note restoring module 240 further includes: and when the restored first written note is not the target written note, responding to the triggering operation of the note canceling and restoring control, erasing the first written note, and displaying the second written note. By setting the note canceling and restoring control, the writing notes corresponding to the note nodes with a plurality of steps of writing traces can be used as units for canceling and redoing, multi-step canceling and redoing can be achieved without canceling and redoing step by step, moreover, the trace data of the nodes of the application are stored in the equipment storage system through the database in a persistent mode, the node is canceled and redoed after the note is repeatedly opened, and the problem that the redo cannot be canceled any more after the note is reopened is solved.

Example 3

The following is an embodiment of the apparatus of the present application, which may be used to perform the method of embodiment 1 of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the contents of the method of example 1 of the present application.

Referring to fig. 12, the present application further provides an electronic device 300, where the electronic device 300 may be any smart terminal including a touch display screen, for example, may be embodied as a computer, a mobile phone, a tablet computer, an interactive tablet, and the like. The interactive tablet 300 may include: at least one processor 301, at least one memory 302, at least one display 303, at least one network interface 304, a user interface 305, and at least one communication bus 306.

The display 303 includes a display layer and a touch layer, and the display layer is used for displaying data processed by the processor; the touch layer may include: a capacitive screen, an electromagnetic screen, an infrared screen, or the like, and generally, the touch layer may receive a touch operation or a writing operation input by a user through a finger or an input device.

The user interface 305 is mainly used for providing an input interface for a user to obtain data input by the user. Optionally, the user interface 305 may also include a standard wired interface, a wireless interface.

The network interface 304 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface).

Wherein the communication bus 306 is used for implementing connection communication between these components.

The processor 301 may include one or more processing cores. The processor 301 interfaces with various components throughout the electronic device 300 using various interfaces and lines to perform various functions of the electronic device 300 and to process data by executing or performing instructions, programs, code sets, or instruction sets stored in the memory 302 and invoking data stored in the memory 302. Optionally, the processor 301 may be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 301 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display layer; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 301, but may be implemented by a single chip.

The Memory 302 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 302 includes a non-transitory computer-readable medium. The memory 302 may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory 302 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-described method embodiments, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 302 may alternatively be at least one memory device located remotely from the aforementioned processor 301. As shown in fig. 9, the memory 302, which is a kind of computer storage medium, may include therein an operating system, a network communication module, and a user.

The processor 301 may be configured to invoke an application program for restoring the electronic note stored in the memory 302, and specifically perform the following operations: when writing notes on a writing page of the electronic whiteboard, responding to a triggering recording operation of at least one group of first writing notes, and storing handwriting data corresponding to the first writing notes as note nodes; the handwriting data is used for recording the writing process of the first writing note; in response to the triggered saving operation of the writing page, storing a second writing note displayed in the writing page and the note node triggered and recorded in the writing page in an associated mode; the first writing pen is used for recording part or all notes in the second writing note generating process; when the first writing pen note is restored on the electronic whiteboard, responding to the triggering opening operation of the writing page, and displaying a second writing note and the list of note nodes on the writing page; and responding to the triggering operation of the note node, and restoring the writing process of the first written note on the writing page according to the handwriting data corresponding to the note node so as to cover the second written note.

When the embodiment of the application writes on an electronic whiteboard writing page, handwriting data corresponding to at least one group of first writing notes are stored as note nodes by responding to triggering record operation of the at least one group of first writing notes, and then the second writing notes displayed on the writing page and the note nodes triggered and recorded on the writing page are stored in an associated manner by responding to the triggering storage operation of the writing page; when the first writing note is restored on the electronic whiteboard, responding to the triggering opening operation of the writing page, displaying a second writing note and the list of the note nodes on the writing page, responding to the triggering operation of the note nodes, and restoring the writing process of the first writing note on the writing page according to the handwriting data corresponding to the note nodes so as to cover the second writing note. The writing note is restored by storing the handwriting data, so that the storage space can be reduced; the displayed second writing note of the writing page and the note node triggered and recorded in the writing page are stored in an associated mode, so that the first writing note needing to be restored can be further searched in the list of the note node according to the second writing note, the writing process of the note needing to be restored can be quickly obtained, and the retrieval efficiency is improved.

In one embodiment, a note recording control RecordButton is displayed on a writing page of the electronic whiteboard; the processor 301 may be configured to invoke an application program for restoring an electronic note stored in the memory 302, and perform a recording triggering operation on at least one group of first writing notes, where the storing handwriting data corresponding to the first writing notes as note nodes includes performing the following operations: responding to the triggering recording operation of the note recording control, and determining writing content corresponding to the writing operation on the writing page of the electronic whiteboard before the note recording control is triggered as the first writing note; and storing the handwriting data corresponding to the first writing note as the note node. According to the embodiment of the application, the note recording control Recordbutton is arranged on the electronic whiteboard writing page, so that a user can actively trigger and store the writing notes needing to be stored through the note recording control Recordbutton, and the user can store the required writing notes according to actual conditions.

In one embodiment, the processor 301 may be configured to invoke an application program of the electronic note restoration stored in the memory 302, perform a recording triggering operation in response to at least one group of first writing notes, and after saving handwriting data corresponding to the first writing notes as note nodes, further perform the following operations: determining a time triggering the operation of recording the first written note as a generation time of the note node. The processor 301 may be configured to invoke an application program for restoring the electronic note stored in the memory 302, and when the list of note nodes is displayed on the writing page, perform the following operations: and displaying the note nodes in sequence according to the generation time. Displaying the note nodes according to the generation time of the note nodes can facilitate a user to restore the written notes in sequence.

In one embodiment, the processor 301 may be configured to invoke an application program for restoring an electronic note stored in the memory 302, perform a recording triggering operation in response to at least one group of first writing notes, and after saving handwriting data corresponding to the first writing notes as note nodes, further perform the following operations: and acquiring the name and/or the label of the note node. The processor 301 may be configured to invoke an application program for electronic note restoring stored in the memory 302, and when the list of note nodes is displayed on the writing page, further perform the following operations: and displaying the name and/or the label of the note node. The name of the note node is used for uniquely identifying the note node, and the label of the note node is used for classifying the note node so as to identify the note node in a certain classification. And displaying the name and/or the label of the note node in the displayed list of the note node, so that the user can quickly retrieve the written note needing to be restored. In an embodiment, after the handwriting data corresponding to at least one group of first writing notes is stored as a note node in response to the recording triggering operation for at least one group of first writing notes, a floating popup is displayed on the writing page, a name naming box and/or a label naming box of the note node are/is arranged on the popup, and a user can input the name and/or the label of the note node on the name naming box and/or the label naming box to facilitate subsequent searching of the note node.

In one embodiment, the processor 301 may be configured to invoke an application program for electronic note restoration stored in the memory 302, perform an open operation in response to a trigger on the written page, display a second written note and the list of note nodes on the written page, and further perform the following operations: responding to a triggering opening operation of the writing page, and displaying the second writing note and a note restoring control on the writing page; and responding to the triggering operation of the note restoring control, and displaying the list of the note nodes. The method comprises the steps that a list window RestoreDialog can be popped up by clicking a note restoring control RestoreButton, a list is borne in the RestoreDialog, note nodes stored before are displayed, a search filtering frame is further arranged in the RestoreDialog, time, names and/or labels of the note nodes can be input into the search filtering frame, and therefore a user can conveniently and quickly filter and display the note nodes, and handwriting data needing to be restored can be quickly selected.

In one embodiment, the processor 301 may be configured to invoke an application program for electronic note restoration stored in the memory 302, perform an open operation in response to a trigger on the written page, display a second written note and the list of note nodes on the written page, and further perform the following operations: and displaying a note canceling and restoring control. Specifically, a note-canceling restore control undo button is displayed in the listwindow resutoredialog. The processor 301 may be configured to invoke an application program for restoring an electronic note stored in the memory 302, execute a triggering operation in response to the note node, erase the written content on the written page according to the handwriting data stored in the note node, and perform the following operations after restoring the writing process of the written note: and when the restored first written note is not the target written note, responding to the triggering operation of the note canceling and restoring control, erasing the first written note, and displaying the second written note. By setting the note canceling and restoring control, the writing notes corresponding to the note nodes with a plurality of steps of writing traces can be used as units for canceling and redoing, multi-step canceling and redoing can be achieved without canceling and redoing step by step, moreover, the trace data of the nodes of the application are stored in the equipment storage system through the database in a persistent mode, the node is canceled and redoed after the note is repeatedly opened, and the problem that the redo cannot be canceled any more after the note is reopened is solved.

Example 4

The present application further provides a computer-readable storage medium, on which a computer program is stored, where the instructions are suitable for being loaded by a processor and executing the method steps of embodiment 1 shown above, and specific execution processes may refer to specific descriptions shown in embodiment 1 and are not described herein again. The device where the storage medium is located can be an electronic device such as a personal computer, a notebook computer, a smart phone and a tablet computer.

For the apparatus embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment for relevant points. The above-described device embodiments are merely illustrative, and the components described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the application. One of ordinary skill in the art can understand and implement it without inventive effort.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart block or blocks and/or flowchart block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An electronic note restoring method is characterized by comprising the following steps:

when writing notes on a writing page of the electronic whiteboard, responding to a triggering recording operation of at least one group of first writing notes, and storing handwriting data corresponding to the first writing notes as note nodes; the handwriting data is used for recording the writing process of the first writing note;

in response to the triggered saving operation of the writing page, storing a second writing note displayed in the writing page and the note node triggered and recorded in the writing page in an associated mode; the first writing pen is used for recording part or all notes in the second writing note generating process;

2. The electronic note restoring method according to claim 1,

a note recording control is displayed on a writing page of the electronic whiteboard;

the storing handwriting data corresponding to at least one group of first writing notes as note nodes in response to the triggering recording operation of the at least one group of first writing notes comprises:

responding to the triggering recording operation of the note recording control, and determining writing content corresponding to the writing operation on the writing page of the electronic whiteboard before the note recording control is triggered or between two adjacent note recording control operations as the first writing note;

and storing the handwriting data corresponding to the first writing note as the note node.

3. The electronic note restoring method according to claim 1,

after the responding to the triggering recording operation of at least one group of first writing notes and storing the handwriting data corresponding to the first writing notes as note nodes, the method further comprises the following steps:

determining the time for triggering the operation of recording the first writing note as the generation time of the note node;

when the list of note nodes is displayed on the writing page, the method comprises the following steps:

and displaying the note nodes in sequence according to the generation time.

4. The electronic note restoring method according to claim 1,

acquiring the name and/or the label of the note node;

and displaying the name and/or the label of the note node.

5. The electronic note restoring method according to claim 1,

the displaying a second written note and the list of note nodes on the written page in response to the triggering opening operation on the written page comprises:

responding to the triggering opening operation of the writing page, and displaying the second writing note and a note restoring control on the writing page;

and responding to the triggering operation of the note restoring control, and displaying the list of the note nodes.

6. The electronic note restoring method according to any one of claims 1 to 5,

the responding to the triggering opening operation of the writing page, after the writing page displays a second writing note and the list of note nodes, further comprising:

displaying a note canceling and restoring control;

after the responding to the triggering operation of the note node, erasing the written content on the written page according to the handwriting data stored by the note node, and restoring the writing process of the written note, the method further comprises:

and when the restored first written note is not the target written note, responding to the triggering operation of the note canceling and restoring control, erasing the first written note, and displaying the second written note.

7. The electronic note restoring method according to claim 6,

the handwriting data comprises writing paths of all the handwriting corresponding to the first writing note, corresponding writing coordinates, corresponding pressure values and a display layer on the electronic whiteboard.

8. An electronic note retrieval device, comprising:

9. An interactive tablet comprising a touch screen, a processor and a memory; characterized in that the memory stores a computer program adapted to be loaded by the processor and to perform the electronic note restoring method according to any of claims 1 to 7.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the electronic note-restoring method according to any one of claims 1 to 7.