Display adjustment method and device, electronic equipment and storage medium

A display adjustment and display screen technology, which is applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve problems such as glare for nearby users, conflicting screen brightness requirements, and display screen backlight brightness differences. To achieve the effect of increasing contrast, reducing the degree of stimulation, and protecting eyesight

Inactive Publication Date: 2020-07-14
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

However, depending on the distance between the user and the interactive smart panel, different users have different requirements for the backlight brightness of the display screen
With the same backlight brightness, distant users may just see the content on the display screen clearly, but nearby users may find it dazzl...
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Method used

In view of this, the inventor of the application analyzes whether students can clearly see the parameters displayed on the screen, and finds that whether they can see clearly is not completely determined by brightness, and the contrast between the display content such as handwriting and the display background will also affect whether Being able to see what's on the screen has an impact. Based on this, the embodiment of the present application provides a display adjustment solution. In this solution, the position of the user's touch point on the display screen can be determined by detecting the user's touch operation on the display screen of the interactive smart tablet, that is, Indicates that the user may write or explain the content around this touch point; furthermore, the backlight brightness of the display area around the touch point can be reduced to reduce the degree of irritation of the display area to the user's eyes and protect the user A...
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Abstract

The invention discloses a display adjustment method and device, electronic equipment and a storage medium, relates to the technical field of display control, and is used for ensuring that a farther user can clearly see contents displayed in a target display area while protecting the eyesight of the user. The method comprises: detecting a touch operation of the user for a display screen, and determining the position of a first contact initially contacted with the display screen by the user; determining a target display area according to a preset display area selection mode based on the positionof the first contact; and adjusting and reducing the backlight brightness of the target display area, and enhancing the contrast between the display background in the target display area and the handwriting of the display content user for the display screen.

Application Domain

Technology Topic

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  • Display adjustment method and device, electronic equipment and storage medium
  • Display adjustment method and device, electronic equipment and storage medium
  • Display adjustment method and device, electronic equipment and storage medium

Examples

  • Experimental program(1)

Example Embodiment

[0052] In order to make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are of the present application. Part of the embodiments of the technical solution, but not all of the embodiments. Based on the embodiments recorded in the application documents, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the technical solution of the application.
[0053] The terms "first" and "second" in the specification and claims of the application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific sequence. In addition, the term "including" and any variations of them are intended to cover non-exclusive protection. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent in these processes, methods, products or equipment. The "plurality" in the present application may mean at least two, for example, two, three or more, and the embodiment of the present application does not limit it.
[0054] In addition, the term "and/or" in this article is only an association relationship describing associated objects, which means that there can be three relationships. For example, A and/or B can mean that there is A alone, and both A and B exist. There are three cases of B alone. In addition, the character "/" in this article, unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.
[0055] As mentioned above, depending on the distance between the user and the interactive smart tablet, under the same backlight brightness, users who are far away from the display screen may just see the content on the display screen, but users nearby may feel dazzling . Therefore, there is a technical problem in the prior art that it is impossible to protect the eyes of nearby users while ensuring that users at a distance can clearly see the displayed content on the large screen.
[0056] For example, in the existing multimedia teaching, the use of large screen teaching has become a development trend, and the content displayed on the large screen needs to be clearly displayed in the classroom to ensure that every student can see the teaching content clearly. Because the classroom is relatively large, in order to take care of the students sitting in the back row, the brightness of the large screen should not be too low. But for teachers, because of the close distance to the big screen. This brightness is too bright, and the eyes will be very uncomfortable when writing. After a class, the teacher reported that the eyes could not stand it. After a long time, it may damage the eyes of the teacher and affect the eyesight of the teacher. This causes the contradiction between the students in the back row and the teacher in the need for screen brightness.
[0057] In view of this, the inventor of the present application analyzed whether students can see clearly the parameters displayed on the screen, and found that whether they can see clearly is not entirely determined by the brightness, and the contrast between the display content such as handwriting and the display background will also affect whether they can see clearly. The content on the screen has an impact. Based on this, the embodiment of the present application provides a display adjustment solution. In this solution, the position of the user's touch point on the display screen can be determined by detecting the user's touch operation on the display screen of the interactive smart tablet, namely Indicates that the user may write or explain the content around the contact; furthermore, the backlight brightness of the display area around the contact can be reduced to reduce the degree of stimulation of the display area to the user’s eyes and protect the user At the same time, it can enhance the contrast between the display background and the displayed content in the display area, so that while protecting the eyesight of users near the screen, ensure that other users far away from the screen can see the content displayed in the display area.
[0058] After introducing the design ideas of the embodiments of the present application, the following briefly introduces the application scenarios to which the technical solutions of the embodiments of the present application can be applied. It should be noted that the application scenarios introduced below are only used to illustrate the embodiments of the present application and not limited. In specific implementation, the technical solutions provided in the embodiments of this application can be flexibly applied according to actual needs.
[0059] See Figure 1a A schematic diagram of an application scenario is shown. The application scenario includes an interactive smart tablet 101, a first user 102, and a second user 103. Among them, the interactive smart tablet 101 includes a distance detection module 1011, a display screen 1012, and a touch detection module ( Figure 1a Not shown in) etc., the distance detection module 1011 can be used to detect the distance between the user and the interactive smart tablet, so as to determine whether a user is approaching; the display screen 1012 can be used to display the content that the user needs to display; touch detection module It can be used to locate the position of the contact point 1013 where the user initially contacts the display screen 1012 when the user's touch operation on the display screen 1012 is detected. The distance between the first user 102 and the interactive smart tablet 101 is shorter than the distance between the second user 103 and the interactive smart tablet 101.
[0060] In the embodiment of the present application, the distance detection module 1011 may be a human body infrared sensor, a sensor that can detect infrared radiation by using the physical effect exhibited by the interaction between infrared radiation and matter. Thus, the distance between the user and the display screen 1012 can be determined by detecting the infrared radiation of the user. For example, when used in a classroom, you can choose a human infrared sensor with a distance of 1 meter and an angle of 120°. Of course, the human body infrared sensor with other parameters can also be selected, which is not specifically limited in the embodiment of the present application. Alternatively, the distance detection module may also be other sensors such as a light sensor.
[0061] In this embodiment of the present application, at least one distance detection module 1011 may be provided in a corresponding area of ​​the display screen 1012. When only one distance detection module is provided, it can be set in the center position of the display screen 1012 of the interactive smart tablet, and the detection function of the user approaching the display screen 1012 can be realized. See Figure 1b When two distance detection modules are set, assuming that they can be set at the position A and the position B of the lower part of the display screen 1012, the first user 102 initially touches the contact point 1013 of the display screen 1012 corresponding to the display area that needs to reduce the brightness of the backlight is 1014 . In this way, in addition to detecting the user's approach, it can also determine the position of the user relative to the display screen 1012, so that the moving direction of the display area 1014 that needs to reduce the backlight brightness can be determined according to the user's moving direction relative to the display screen 1012. Improve the accuracy of the display area where the backlight brightness is reduced. Wherein, the display area 1014 can be any shape, for ease of description, Figure 1b Take the display area 1014 as an elliptical area as an example. How to determine the display area 1014 will be described in detail below, and will not be repeated here.
[0062] In the embodiments of this application, Figure 1a The application scenario shown can be a scene where teachers teach through an interactive smart tablet in a multimedia classroom, or a scene where staff in a meeting room explain the content of the meeting through an interactive smart tablet, or other scenarios where interactive smarts are needed. The scene of the tablet and so on.
[0063] To further illustrate the application display solution provided by the embodiments of the present application, this will be described in detail below with reference to the drawings and specific implementations. Although the embodiments of the present application provide the method operation steps as shown in the following embodiments or drawings, more or less operation steps may be included in the method based on conventional or creative labor. In steps where there is no necessary causal relationship logically, the execution order of these steps is not limited to the execution order provided in the embodiments of the present application. The method may be executed sequentially or in parallel according to the method shown in the embodiments or the drawings during actual processing or when executed by the device (for example, a parallel processor or a multithreaded application environment).
[0064] See figure 2 , The flow chart of the display adjustment method provided by the embodiments of this application, figure 2 The specific process of the adjustment method shown in is described as follows:
[0065] Step 201: Detect the user's touch operation on the display screen, and determine the position of the first contact point of the user initially touching the display screen.
[0066] In the embodiments of the present application, the user can touch the display screen with a finger, or use some auxiliary tools to touch the display screen, and then the interactive smart tablet can detect the user's touch operation on the display screen, obtain touch information, and then According to the touch information, the position of the first touch point of the user initially touching the display screen is located. Specifically, when locating the position of the first contact point, a certain point on the display screen can be selected as the origin. For example, the point at the lower left corner of the display screen is selected as the origin to establish a coordinate system. When it is detected that the user touches the display screen When the touch information of the first touch point is touched, the position coordinates of the first touch point can be obtained by analyzing.
[0067] Step 202: Based on the position of the first touch point, the target display area is determined according to a preset display area selection method.
[0068] In the embodiment of this application, the target display area may be the user in the display screen (such as Figure 1a The first user 102) in the area where the line of sight is concentrated, the first user 102 can write in the target display area, or can explain the content displayed in the target display area. For example, the teacher is writing a blackboard in the target display area, or the teacher is explaining a math problem in the target display area. After the position of the first touch point is determined, the target display area can be determined according to the preset display area selection method, which specifically includes the following determination methods:
[0069] In the first type, the display area within the preset radius of the first contact is determined as the target display area with the position of the first contact as the center.
[0070] In the embodiments of this application, such as image 3 As shown, after the position of the first contact is determined, the first contact can be taken as the center of the circle, and a circular area with a preset radius can be selected as the target display area. The preset radius can be preset, it can be that all users correspond to the same preset radius, such as 40 cm, or it can be set first for different users to correspond to different preset radius, which can be specifically based on the usage habits of each user Set, for example, the preset radius corresponding to the first user is 40 cm, the preset radius corresponding to the second user is 35 cm, and so on. It may also be that after the first touch point is determined and before the target display area is determined, the user selects the size of the preset radius by himself, for example, the user can select the size of the preset radius by voice. Therefore, it is possible to facilitate user operations to a certain extent, and enhance the user experience.
[0071] The second type is to take the position of the first contact as the starting position, and select a display area of ​​any shape including the first contact and the second contact as the target display area along the direction from the first contact to the second contact , Where the second touch point is a touch point detected immediately after the first touch point that the user touches the displayed screen.
[0072] In the embodiment of the present application, the target display area may also be selected according to the user's habit of displaying content displayed on the display screen and the user's writing habit. Specifically, the position of the first touch point can be used as the starting position of the display area, and the target display area can be selected according to the user's usage habits and writing habits. For example, such as Figure 4 As shown, taking the user writing on the display screen as an example, assuming that the user is accustomed to writing from left to right, the first touch point of the user initially touching the display screen is to the left of the second touch point touching the display screen for the second time. The first contact point can be used as the starting position, and the rectangular display area can be selected as the target display area along the direction of the second contact point. Of course, the shape of the target display area may also be a quadrilateral, pentagonal or other shapes other than a triangle and a rectangle, and there is no specific limitation here.
[0073] Further, the target display area is determined according to the above method. If the user is detected to move left and right in front of the display screen, when the position of the third touch point contacted by the user with the display screen exceeds the target display area, the position of the third touch point can be determined The target display area is re-determined, that is, the target display area in the embodiment of the present application can move with the movement of the user.
[0074] Step 203: Decrease the backlight brightness of the target display area, and enhance the contrast between the display background and the display content in the target display area.
[0075] In the embodiments of this application, as described above, if the display conditions of the display screen remain unchanged, when the user is far away from the display screen of the interactive smart tablet (such as Figure 1a When the second user 103 in the display screen clearly sees the display content on the display screen, the backlight brightness of the display screen is important for users who are closer to the display screen (such as Figure 1a The first user 102) may be dazzling. If viewing a dazzling display screen for a long time, the eyesight of the user may be affected. Therefore, in order to prevent the backlight brightness of the display screen from stimulating the eyes of the user who is closer to the display screen and protect the user’s vision, after determining the target display area that the user needs to use, the backlight brightness of the target display area can be reduced, so that the target The brightness of the backlight in the display area is more moderate and will not stimulate the user's eyes to protect the user's vision.
[0076] At the same time, in order to enable users who are far from the display screen to see clearly the content displayed in the target display area, the contrast between the display background and the displayed content in the target display area can be increased. Contrast can refer to the measurement of different brightness levels between the brightest white and the darkest black in the target display area. The larger the difference range, the greater the contrast, and the smaller the difference range, the smaller the contrast. Take the blackboard written by the teacher in the target display area as an example. Generally, the blackboard is displayed in black font and the background of the blackboard is white. The greater the contrast between the background of the blackboard and the blackboard in the target display area, the clearer the blackboard is observed by the user. Moreover, after increasing the contrast, on the basis of not affecting the user to see the display content clearly, it can be equivalent to highlighting the display content in the target display area in the entire display screen, which can attract the sight of other users and focus the attention of other users. In the target display area, the display efficiency of the content displayed in the target display area can be improved to a certain extent.
[0077] Optionally, when reducing the backlight brightness of the target display area, the same reduction value can be set for all users. For example, the backlight brightness of the display screen is divided into 10 levels from low to high, and the current backlight brightness of the display screen is at the 9th level. After the target display area is determined, no matter who the user is, the backlight in the target display area The brightness is reduced by 2 levels, that is, the backlight brightness of the target display area is reduced to the seventh level. Therefore, the stimulation of the user's eyes by the brightness of the backlight in the target display area being used by the user can be reduced, and the user's eyesight can be protected.
[0078] Or, it may be that the backlight brightness reduction value of the target display area corresponding to different users is different. Specifically, different target backlight brightness suitable for the user's eyes can be set for different users according to user information. Therefore, when the backlight brightness of the target display area is reduced, the user who is currently using the interactive smart tablet can be detected to obtain user information of the user. The user information can include the user’s identity information, vision, eye health, and The accustomed display screen backlight brightness and so on. Furthermore, the target backlight brightness corresponding to the user can be determined according to the user information. The target backlight brightness is the background brightness adapted to the user's eyes, so that the backlight brightness of the target display area can be reduced to the target backlight brightness, so that the backlight of the target display area The brightness is less than the backlight brightness of the first display area, and the first display area is a display area other than the target display area on the display screen of the interactive smart tablet. Therefore, on the basis of reducing the irritation of the backlight brightness to the user's eyes in the target display area that the user is using, and protecting the user's eyesight, the backlight brightness adjustment of the target display area can be made more humane, and the backlight brightness of the target display area can be reduced. It is more in line with the user's usage habits, so it can improve the user experience.
[0079] For example, suppose that the current brightness of the display screen is 9 levels, the backlight brightness corresponding to user A is 7 levels, the backlight brightness corresponding to user B is 6 levels, and the backlight brightness corresponding to user C is 8 levels. According to the obtained user information, it is determined that the user is user B, and the backlight brightness of the target display area can be reduced to the sixth level, so that the backlight brightness of the target display area is suitable for user B and does not stimulate user B's eyes.
[0080] Optionally, in the embodiments of this application, see Figure 5 , Before detecting the user's touch operation on the display screen, you can also pass Figure 1a The distance detection module 1011 shown detects the distance between the user and the display screen of the interactive smart tablet. When it is detected that the distance between the user and the display screen is less than the first threshold, the display screen can be controlled to start detecting the user's Touch operation, that is, when the distance between the user and the display screen is greater than or equal to the first threshold, it indicates that no user needs to touch the display screen, and the display screen does not need to detect the user's touch operation on the display screen. In this way, the power consumed or other resources occupied by detecting touch operations can be saved.
[0081] Optionally, in the embodiments of this application, please continue to see Figure 5 , After enhancing the contrast between the display background and the displayed content in the target display area, the distance between the user and the display screen can be detected. If the distance is greater than or equal to the second threshold, the backlight brightness of the target display area can be increased to the display screen In addition to the target display area, the backlight brightness of other display areas. As a result, the brightness of the backlight in the entire display screen is consistent, and the display effect is the same, avoiding the visual difference of the user, and reducing the fatigue of the user's eyes.
[0082] Optionally, in the embodiment of the present application, in order to enable users who are far away from the display screen to observe the display content in the target display area more clearly, the display content in the target display area may be enlarged according to a predetermined ratio. For example, the display content in the target display area may be enlarged to 1.5 times the display content in other display areas. For another example, if the display content in the target display area is text and the font size is 14 font, the text can be enlarged to 18 font. Or, if the display content in the target display area includes text and graphics, only the font size of the text in the display content can be enlarged, and the size of the graphics in the display content remains unchanged.
[0083] Therefore, through the above method, the backlight brightness of the target display area corresponding to the user who will touch and use the display screen can be reduced, and the contrast of the display background and display content in the target display area can be increased, that is, by adjusting the local backlight brightness of the display screen And contrast, in order to achieve the effect that the local area is relatively close to users without glare, and users in the distance can see clearly. Therefore, it is possible to reduce the glare of the target display area to the nearby users while not affecting the viewing of the content displayed in the target display area by the distant user, and to protect the eyesight of the user.
[0084] Based on the same inventive concept, an embodiment of the present application provides a display adjustment device. The display adjustment device can be a hardware structure, a software module, or a hardware structure plus a software module. The display adjustment device can be realized by a chip system, and the chip system can be composed of a chip, or may include a chip and other discrete devices. See Figure 6a As shown, the display adjustment device in the embodiment of the present application includes a first detection module 601, a determination module 602, and a control module 603, where:
[0085] The first detection module 601 is configured to detect the touch operation of the user on the display screen, and determine the position of the first contact point of the user initially touching the display screen;
[0086] The determining module 602 is configured to determine a target display area according to a preset display area selection method based on the position of the first contact;
[0087] The control module 603 is used to reduce the backlight brightness of the target display area and enhance the contrast between the display background and the display content in the target display area.
[0088] In a possible implementation manner, the determining module 602 is specifically configured to:
[0089] Taking the position of the first touch point as the center, determine the display area within the preset radius of the first touch point as the target display area; or,
[0090] Taking the position of the first contact as the starting position, along the direction from the first contact to the second contact, a display area of ​​any shape including the first contact and the second contact is selected as the target display area. The second contact point is the contact point of the display screen detected by the user immediately after the first contact point.
[0091] In a possible implementation manner, the control module 603 is specifically configured to:
[0092] Acquire user information of the user, and determine the target backlight brightness corresponding to the user according to the user information;
[0093] Reduce the backlight brightness of the target display area to the target backlight brightness so that the backlight brightness of the target display area is less than the backlight brightness of the first display area, which is a display area on the display screen excluding the target display area.
[0094] In a possible implementation, such as Figure 6b As shown, Figure 6b The display adjustment device shown further includes a second detection module 604, and the second detection module 604 is configured to:
[0095] After enhancing the contrast between the display background and the display content in the target display area, if it is detected that the distance between the user and the display screen is less than the first threshold, the control display screen starts to detect the user's touch operation on the display screen.
[0096] In a possible implementation, Figure 6b The display adjustment device shown further includes a backlight adjustment module 605, which is used for:
[0097] After enhancing the contrast between the display background and the display content in the target display area, if it is detected that the distance between the user and the display screen is greater than or equal to the second threshold, increase the backlight brightness of the target display area to the display screen except for the target display area The backlight brightness of the display area.
[0098] In a possible implementation, Figure 6b The display adjustment device shown further includes an amplifying module 606, which is used to:
[0099] After enhancing the contrast between the display background and the display content in the target display area, the display content in the target display area is enlarged according to a preset ratio.
[0100] All relevant content of the steps involved in the foregoing embodiment of the display adjustment method can be cited in the functional description of the functional module corresponding to the display adjustment device in the embodiment of the present application, and will not be repeated here.
[0101] The division of modules in the embodiments of this application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, the functional modules in the various embodiments of this application can be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
[0102] Based on the same inventive concept, an electronic device is provided in the embodiments of the present application. The electronic device may be a hardware structure, a software module, or a hardware structure plus a software module. The electronic device can be implemented by a chip system, which can be composed of a chip, or can include a chip and other discrete devices. See Figure 7 The electronic device in the embodiment of the present application includes at least one processor 701 and a memory 702 connected to the at least one processor. The specific connection medium between the processor 701 and the memory 702 is not limited in the embodiment of the present application. Figure 7 In the middle, the processor 701 and the memory 702 are connected through the bus 700 as an example. The bus 700 is Figure 7 It is indicated by a thick line in the middle, and the connection mode between other components is only for schematic illustration and is not intended to be limiting. The bus 700 can be divided into an address bus, a data bus, a control bus, etc., for ease of presentation, Figure 7 It is represented by a thick line only, but it does not mean that there is only one bus or one type of bus.
[0103] In the embodiment of the present application, the memory 702 stores instructions that can be executed by at least one processor 701, and the at least one processor 701 can execute the steps included in the foregoing display adjustment method by executing the instructions stored in the memory 702.
[0104] The hardware structure of the processor 701 may be CPU, DSP, ASIC, etc., and the hardware structure of the memory 702 may be flash memory, hard disk, multimedia card, card-type memory, RAM, SRAM, etc., which will not be repeated here.
[0105] Among them, the processor 701 is the control center of the electronic device. It can use various interfaces and lines to connect the various parts of the entire electronic device. By running or executing the instructions stored in the memory 702 and calling the data stored in the memory 702, the electronic device The various functions and processing data of the electronic equipment can be used to monitor the electronic equipment as a whole.
[0106] Optionally, the processor 701 may include one or more processing units. The processor 701 may integrate an application processor and a modem processor. The application processor mainly processes the operating system, user interface, and application programs, etc. The adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 701. In some embodiments, the processor 701 and the memory 702 may be implemented on the same chip, and in some embodiments, they may also be implemented on separate chips.
[0107] Based on the same inventive concept, the embodiments of the present application also provide a storage medium that stores computer instructions, and when the computer instructions run on the computer, the computer executes the steps of the aforementioned display adjustment method.
[0108] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program codes.
[0109] This application is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated for use It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
[0110] These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
[0111] These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.
[0112] Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, then this application is also intended to include these modifications and variations.
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