CN110703939B - Handwriting reading equipment and report point data processing method thereof, and computer storage medium - Google Patents
Handwriting reading equipment and report point data processing method thereof, and computer storage medium Download PDFInfo
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- CN110703939B CN110703939B CN201910913499.8A CN201910913499A CN110703939B CN 110703939 B CN110703939 B CN 110703939B CN 201910913499 A CN201910913499 A CN 201910913499A CN 110703939 B CN110703939 B CN 110703939B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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Abstract
The invention relates to the technical field of computers, and discloses a point reporting data processing method, a handwriting reading device and a computer storage medium. The report point data processing method comprises the following steps: the system-level chip transmits the received report point data of the handwriting to a display screen controller; the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data; and the display screen controller drives the ink screen to display the handwriting by using the first driving waveform. According to the embodiment of the invention, the report point data is directly transmitted to the display screen controller from the system-level chip in the hardware layer, so that the time consumption for drawing the handwriting is shortened, and the drawing speed of the handwriting is improved.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a point reporting data processing method, a handwriting reading device and a computer storage medium.
Background
Handwriting reading devices (e.g., electronic book readers) typically display content using an ink screen while providing electromagnetic handwriting functionality. Among them, the ink screen is also called an Electronic Paper Display (EPD).
The handwriting function of the handwriting reading equipment is realized by the following steps: the method comprises the steps that an electromagnetic film with the same or approximately the same size as a screen is arranged below an EPD and used for sensing the movement of a handwriting pen, the electromagnetic handwriting pen is used for writing content on the screen outside the device, the electromagnetic film senses the coordinate data of handwriting to obtain the coordinate data of the handwriting, the coordinate data is reported to a main Chip, such as a System On Chip (SOC), the SOC outputs a written image, and the written image is displayed through the EPD.
The handwriting process of the handwriting reading device is a dynamic process, for example, drawing a line by using a handwriting pen is a process from a starting point to an end point. In order to ensure the real experience of handwriting, during the writing process, the handwriting reading equipment needs to draw and display the handwriting image frame by frame continuously, and the handwriting function has very high requirement on the real-time performance of handwriting display, and pursues the display effect of 'follow pen'. Therefore, how to shorten the time consumption from the pen tip triggering to the corresponding handwriting content display as much as possible is a problem to be solved urgently at present.
Disclosure of Invention
In view of the above, the present invention has been made to provide an electronic paper display device that overcomes or at least partially solves the above problems.
According to an aspect of the present invention, a method for processing report point data is provided, including:
the system-level chip transmits the received report point data of the handwriting to a display screen controller;
the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
and the display screen controller drives the ink screen to display the handwriting by using the first driving waveform.
According to another aspect of the present invention, a handwriting reading apparatus is provided, which includes an electromagnetic board, a system-on-chip, a display screen controller, and an ink screen, which are electrically connected in sequence, where the electromagnetic board is configured to detect a handwriting operation instruction generated by an electromagnetic pen on the ink screen, and the system-on-chip and the display screen controller are respectively configured to store at least one executable instruction, where the executable instruction causes the system-on-chip and the display screen controller to perform the following operations:
the system-level chip transmits the received report point data of the handwriting to a display screen controller;
the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
and the display screen controller drives the ink screen to display the handwriting by using the first driving waveform.
According to yet another aspect of the present invention, there is provided a computer storage medium having at least one executable instruction stored therein, the executable instruction causing a system-on-chip and display controller to:
the system-level chip transmits the received report point data of the handwriting to a display screen controller;
the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
and the display screen controller drives the ink screen to display the handwriting by using the first driving waveform.
In the point reporting data processing method, the handwriting reading equipment and the computer storage medium provided by the invention, the point reporting data is directly transmitted to the display screen controller from the system-on-chip in the hardware layer, and the process that the point reporting data is transmitted from the core layer of the system-on-chip to the application layer and then returned to the core layer from the application layer is cancelled, so that the transmission time of the point reporting data is saved, the time consumption for drawing the handwriting is shortened, and the drawing speed of the handwriting is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a hardware configuration diagram of a conventional handwriting reading apparatus;
FIG. 2 is a diagram illustrating a transmission process of data of a report in a conventional handwriting reading device;
FIG. 3 is a flow chart illustrating a method for processing point data according to an embodiment of the present invention;
FIG. 4 shows a schematic flow chart of step 120 in FIG. 3
FIG. 5 is a flowchart illustrating a method for processing point report data according to another embodiment of the present invention;
FIG. 6 shows a schematic flow chart of step 503A in FIG. 5;
FIG. 7 shows a schematic flow chart of step 506B in FIG. 5;
fig. 8 is a schematic structural diagram of a handwriting reading device provided by the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Handwriting reading equipment is including electric connection's electromagnetic plate, system level chip, display screen controller and ink screen in proper order, and the electromagnetic plate is equipped with the electromagnetic film, detects the handwriting operation instruction that the electromagnetic pen produced on the ink screen through the electromagnetic film.
In the prior art, after an electromagnetic film of a handwriting reading device detects an electromagnetic signal triggered by a handwriting pen, the electromagnetic signal is converted into handwritten dot data, and then the handwritten dot data is transmitted to a core layer (Kernel) of an SOC, the Kernel transmits the handwritten dot data to an application layer of an upper layer, the application layer generates a handwriting track image to be displayed according to the handwritten dot data, converts the handwriting track image into a gray image, and transmits the gray image back to the Kernel by the application layer, and the SOC transmits the gray image to a Display screen controller, such as an Electronic Paper Display Controller (EPDC) or a Timer Control Register (TCON). And obtaining a driving waveform (waveform) of each pixel point by the EPDC or the TCON according to a Look-Up-Table (LUT) of the gray level image of each pixel point in the gray level image, and driving the EPD for display by using the driving waveform through the EPDC or the TCON. Therefore, in the process, the click data is subjected to the processes of Kernel from the SOC to the application layer, then Kernel from the SOC to the SOC, and then EPDC or TCON, so that the time consumption of the handwriting display process is increased. The hardware structure of the existing handwriting reading device is shown in fig. 1, and the transmission process of the report data is shown in fig. 2.
Fig. 3 is a flowchart illustrating a method for processing point data according to an embodiment of the present invention, where the method is applied to a handwriting reading device. As shown in fig. 3, the method comprises the steps of:
step 110: and the system-level chip transmits the received report point data of the handwriting to the display screen controller.
After an electromagnetic film of the handwriting reading equipment detects an electromagnetic signal triggered by the handwriting pen, the electromagnetic signal is converted into handwriting report data, and then the handwriting report data is transmitted to the system-on-chip. The system-level chip directly transmits the received report point data of the handwriting to the display screen controller in a hardware layer, and specifically, the core layer of the system-level chip directly transmits the received report point data to the display screen controller. Therefore, the process that the point reporting data is returned from the core layer to the application layer of the system-level chip and then returned to the core layer by the application layer is cancelled, the transmission time of the point reporting data is saved, the time consumption for drawing the handwriting is shortened, and the drawing speed of the handwriting is improved.
The hit data of the handwriting generally includes pressure-sensitive data in addition to the coordinate data of the handwriting. In the prior art, when a handwriting image is generated, an application layer of a system-on-chip realizes different stroke effect according to pressure-sensitive data, and meanwhile, the application layer synthesizes the handwriting image according to attribute information such as note color, line thickness and the like selected by a user in advance. But the core layer of the system-on-chip does not have the handwriting effect composition capability of the application layer. Therefore, after the report data is directly transmitted from the core layer to the display screen controller, the display screen can only be driven to display black lines, and the effects of the stroke, the thickness and the like of the lines cannot be displayed.
In the scheme that the core layer of the system-on-chip directly transmits the report point data to the display screen controller, pressure-sensitive data is not needed, so that in some embodiments of the invention, the system-on-chip can remove the pressure-sensitive data in the received report point data of the handwriting to obtain the report point data only including the coordinate data, and then transmit the report point data only including the coordinate data to the display screen controller. Therefore, the data transmission quantity can be reduced, the transmission time of the report point data is further saved, and the drawing speed of the handwriting is improved.
Step 120: and the display screen controller searches the LUT table to obtain the driving waveform of the ink screen based on the report point data.
After the display screen controller receives the report data, the driving waveform of the ink screen needs to be acquired based on the report data. Specifically, as shown in fig. 4, step 120 may be implemented as follows:
step 121: the display screen controller receives report point data;
step 122: the display screen controller establishes a layer cache;
step 123: the display screen controller generates a handwriting image of the handwriting in the layer cache according to the report point data;
step 124: and the display screen controller looks up the table in the LUT according to the handwriting image to obtain the driving waveform of the ink screen.
Because, the display screen controller does not have the handwriting effect synthesizing capability of the application layer. Therefore, after the point reporting data is directly transmitted from the core layer to the display screen controller, the handwriting image generated by the display screen controller in step 123 does not include the color, thickness, and stroke shape of the handwriting, and the display screen controller can only drive the display screen to display black lines, and does not display the stroke shape, thickness, and other effects of the lines.
Step 130: the display screen controller drives the ink screen to display the handwriting by using the driving waveform.
In the embodiment of the invention, the point reporting data is directly transmitted to the display screen controller from the system-level chip in the hardware layer, the process that the point reporting data is transmitted from the core layer of the system-level chip to the application layer and then returned to the core layer from the application layer is cancelled, the transmission time of the point reporting data is saved, the time consumption for drawing the handwriting is shortened, and the drawing speed of the handwriting is improved.
When the handwriting response speed and the display effect are expected to be compatible, another embodiment of the invention provides an implementation mode which is compatible with both the speed and the effect. In the method, the report data from the electromagnetic film is transmitted in two paths, one path is directly transmitted to the display screen controller by the system-on-chip to be displayed in advance, the other path is transmitted to the application layer by the core layer of the system-on-chip at the same time or later, the application layer carries out image synthesis (the effects of color, thickness, stroke and the like of handwriting lines are increased), a gray image is formed, then the gray image is returned to the core layer, and the core layer sends the gray image to the display screen controller.
Fig. 5 is a flowchart illustrating a method for processing point report data according to another embodiment of the present invention, where the method is applied to a handwriting reading device. As shown in fig. 5, the method comprises the steps of:
step 501: receiving the point reporting data of the handwriting by the system-level chip;
after an electromagnetic film of the handwriting reading equipment detects an electromagnetic signal triggered by the handwriting pen, the electromagnetic signal is converted into handwriting report data, and then the handwriting report data is transmitted to the system-on-chip.
the system-level chip directly transmits the received report point data of the handwriting to the display screen controller in a hardware layer, and specifically, the core layer of the system-level chip directly transmits the received report point data to the display screen controller. Therefore, the process that the point reporting data is returned from the core layer to the application layer of the system-level chip and then returned to the core layer by the application layer is cancelled, the transmission time of the point reporting data is saved, the time consumption for drawing the handwriting is shortened, and the drawing speed of the handwriting is improved.
The hit data of the handwriting generally includes pressure-sensitive data in addition to the coordinate data of the handwriting. In the prior art, when a handwriting image is generated, an application layer of a system-on-chip realizes different stroke effect according to pressure-sensitive data, and meanwhile, the application layer synthesizes the handwriting image according to attribute information such as note color, line thickness and the like selected by a user in advance. But the core layer of the system-on-chip does not have the handwriting effect composition capability of the application layer. Therefore, after the report data is directly transmitted from the core layer to the display screen controller, the display screen can only be driven to display black lines, and the effects of the stroke, the thickness and the like of the lines cannot be displayed.
In the scheme that the core layer of the system-on-chip directly transmits the report point data to the display screen controller, pressure-sensitive data is not needed, so that in some embodiments of the invention, the system-on-chip can remove the pressure-sensitive data in the received report point data of the handwriting to obtain the report point data only including the coordinate data, and then transmit the report point data only including the coordinate data to the display screen controller. Therefore, the data transmission quantity can be reduced, the transmission time of the report point data is further saved, and the drawing speed of the handwriting is improved.
Step 503A: the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
after the display screen controller receives the report data, a first driving waveform of the ink screen needs to be acquired based on the report data look-up table. Specifically, as shown in fig. 6, step 503A may be implemented as follows:
step a 1: the display screen controller receives report point data;
step a 2: the display screen controller establishes a layer cache;
step a 3: the display screen controller generates a first handwriting image of the handwriting in the layer cache according to the report point data;
step a 4: and the display screen controller looks up a table in the LUT according to the first handwriting image to obtain a first driving waveform of the ink screen.
Because the display screen controller does not have the handwriting effect synthesis capability of the application layer, after the click reporting data is directly transmitted to the display screen controller from the core layer, the handwriting image generated by the display screen controller in step 503A does not include the effects of the color, thickness, stroke front and the like of the handwriting, and the display screen controller can only drive the display screen to display black lines and does not display the effects of the stroke front, thickness and the like of the lines.
it should be noted that step 502B is performed simultaneously with or after step 502A.
the second handwriting image includes one or more of a color, a thickness, and a tip of the handwriting.
step 505B: the application layer transmits the gray level image to the core layer;
step 506B: the core layer transmits the gray level image to the display screen controller;
in one implementation, the second frame of image may be refreshed when the user has finished writing a handwriting line and has lifted the pen, and the visual effect presented at this time is: firstly, black lines without effect are displayed along with a handwriting track, then a pen is lifted, and the screen is refreshed to change the original black lines without effect into lines with effect. Since the coordinate data used when the handwriting is drawn successively is the same, it appears visually that the following line "replaces" the preceding line, and in fact the following line is a redrawn line. Specifically, as shown in fig. 7, the step 506B further includes the following steps:
step b 1: the core layer receives the gray level image transmitted by the application layer;
step b 2: after the tip of the stylus is off the ink screen, the core layer transmits the grayscale image to the display screen controller.
Wherein, the nib of stylus leaves the ink screen and judges through following mode: and if the reception of the point reporting data is stopped, judging that the pen point of the stylus pen leaves the display screen. When the user lifts the pen, the electromagnetic film cannot detect new point reporting data, and at the moment, the core layer of the system-on-chip stops receiving the point reporting data, so that whether the pen point of the handwriting pen leaves the ink screen or not is judged by judging whether the receiving of the point reporting data is stopped or not.
Through the mode, the system-level chip transmits the report point data in two ways, after the core layer receives the gray level image returned by the application layer, the report point data is not transmitted to the display screen controller, but the core layer receives the pen lifting signal reported by the electromagnetic film and then transmits the pen lifting signal to the display screen controller, so that the first way of line is drawn firstly, and then the second way of line with the effect is drawn.
step 508B: and the display screen controller drives the ink screen to display the handwriting by using the second driving waveform.
In the above steps, in steps 502A-504A, the reporting data is directly transmitted from the system-on-chip to the display screen controller in the hardware layer, and the display screen controller drives the ink screen to display; in steps 502B-508B, while the reporting data is transmitted from the system-on-chip to the display screen controller in the hardware layer or later, the core layer of the system-on-chip transmits the reporting data to the application layer, the application layer performs image synthesis and then transmits the grayscale image to the display screen controller through the core layer, and the display screen controller drives the ink screen to display. Before the display screen controller finishes processing, processing the gray image synthesized by the application layer after the report point data transmitted by the system level chip on the hardware layer, wherein the display effect observed by a user is as follows: the screen displays a black line without thickness and stroke effect, and then the screen executes refreshing once to refresh the original black line with various effects, so that the handwriting can be quickly displayed, and the display effect of the handwriting can be considered.
The embodiment of the invention provides a nonvolatile computer storage medium, wherein at least one executable instruction is stored in the storage medium, and the executable instruction enables a system-level chip and a display screen controller to execute the following operations:
the system-level chip transmits the received report point data of the handwriting to a display screen controller;
the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
and the display screen controller drives the ink screen to display the handwriting by using the first driving waveform.
In an optional manner, the display screen controller, based on the breakpoint data, searches an LUT table to obtain a first driving waveform of the ink screen, and further includes:
the display screen controller receives the report point data;
the display screen controller establishes a layer cache;
the display screen controller generates a first handwriting image of the handwriting in the layer cache according to the report point data;
and the display screen controller looks up a table in an LUT (look-up table) according to the first handwriting image to obtain a first driving waveform of the ink screen.
In an optional manner, the system-on-chip transmits the received punctuation data of the handwriting to the display screen controller, further comprising:
the system-level chip removes pressure-sensitive data in the received report point data of the handwriting to obtain report point data only comprising coordinate data;
and the system-level chip transmits the report point data only comprising the coordinate data to the display screen controller.
In an alternative, the executable instructions further cause the system-on-chip and the display controller to:
the core layer of the system-level chip transmits the received report point data of the handwriting to the application layer of the system-level chip;
the application layer generates a second handwriting image of the handwriting according to the report point data;
the application layer converts the second handwriting image into a gray image;
the application layer transmits the gray level image to the core layer;
the core layer transmits the gray level image to the display screen controller;
the display screen controller searches an LUT table to obtain a second driving waveform of the ink screen based on the gray image;
and the display screen controller drives the ink screen to display the handwriting by using the second driving waveform.
In an alternative mode, the step of transmitting the received hit data of the handwriting to the application layer of the system-on-chip by the core layer of the system-on-chip is performed at the same time or after the step of transmitting the received hit data of the handwriting to the display screen controller by the system-on-chip.
In an alternative mode, the core layer transmits the grayscale image to the display screen controller, further comprising:
the core layer receives the gray level image transmitted by the application layer;
and after the pen point of the stylus pen leaves the ink screen, the core layer transmits the gray scale image to the display screen controller.
In an alternative mode, the fact that the tip of the stylus is away from the ink screen is determined by:
and if the reception of the newspaper point data is stopped, judging that the pen point of the stylus pen leaves the display screen.
In an alternative mode, the second handwriting image includes one or more of color, thickness and stroke front of the handwriting.
Fig. 8 is a schematic structural diagram of a handwriting reading device according to an embodiment of the present invention, and as shown in fig. 7, the handwriting reading device 800 includes an electromagnetic plate 81, a system-on-chip 82, a display screen controller 83, and an ink screen 84, which are electrically connected in sequence.
The electromagnetic plate 81 is used for detecting the handwriting operation instruction generated by the electromagnetic pen on the ink screen. The system-on-chip 82 integrates a Central Processing Unit (CPU) and other main control devices, and is a main chip of the reader. The Display controller 83 is an Electronic Paper Display Controller (EPDC) or a Timer Control Register (TCON), which is also called a logic board, a screen driving board, or a central Control board. The system on chip 82 outputs a Look-Up-Table (LUT) to the display controller 83, and the display controller 83 is configured to obtain a driving waveform (waveform) according to the LUT and drive ink particles on the ink screen 84 to move according to the driving waveform, so as to implement imaging. The system-on-chip 82 is provided with a communication interface, the system-on-chip 82 is electrically connected with the display screen controller 83 through the communication interface, and the system-on-chip 82 is used for sending image data to be displayed to the display screen controller 83 through the communication interface; the display controller 83 is electrically connected to the ink panel 84, and the display controller 83 is configured to convert the image data into a driving waveform and drive the ink panel 84 to display the content of the image data according to the driving waveform.
The system-on-chip 82 and the display controller 83 are respectively configured to store at least one executable instruction 85, where the executable instruction causes the system-on-chip 82 and the display controller 83 to perform the following operations:
the system-level chip transmits the received report point data of the handwriting to a display screen controller;
the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
and the display screen controller drives the ink screen to display the handwriting by using the first driving waveform.
In an optional manner, the display screen controller, based on the breakpoint data, searches an LUT table to obtain a first driving waveform of the ink screen, and further includes:
the display screen controller receives the report point data;
the display screen controller establishes a layer cache;
the display screen controller generates a first handwriting image of the handwriting in the layer cache according to the report point data;
and the display screen controller looks up a table in an LUT (look-up table) according to the first handwriting image to obtain a first driving waveform of the ink screen.
In an optional manner, the system-on-chip transmits the received punctuation data of the handwriting to the display screen controller, further comprising:
the system-level chip removes pressure-sensitive data in the received report point data of the handwriting to obtain report point data only comprising coordinate data;
and the system-level chip transmits the report point data only comprising the coordinate data to the display screen controller.
In an alternative manner, the executable instructions 85 further cause the system-on-chip 82 and the display controller 83 to:
the core layer of the system-level chip transmits the received report point data of the handwriting to the application layer of the system-level chip;
the application layer generates a second handwriting image of the handwriting according to the report point data;
the application layer converts the second handwriting image into a gray image;
the application layer transmits the gray level image to the core layer;
the core layer transmits the gray level image to the display screen controller;
the display screen controller searches an LUT table to obtain a second driving waveform of the ink screen based on the gray image;
and the display screen controller drives the ink screen to display the handwriting by using the second driving waveform.
In an alternative mode, the step of transmitting the received hit data of the handwriting to the application layer of the system-on-chip by the core layer of the system-on-chip is performed at the same time or after the step of transmitting the received hit data of the handwriting to the display screen controller by the system-on-chip.
In an alternative mode, the core layer transmits the grayscale image to the display screen controller, further comprising:
the core layer receives the gray level image transmitted by the application layer;
and after the pen point of the stylus pen leaves the ink screen, the core layer transmits the gray scale image to the display screen controller.
In an alternative mode, the fact that the tip of the stylus is away from the ink screen is determined by:
and if the reception of the newspaper point data is stopped, judging that the pen point of the stylus pen leaves the display screen.
In an alternative mode, the second handwriting image includes one or more of color, thickness and stroke front of the handwriting.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (21)
1. A report point data processing method is characterized by comprising the following steps:
the core layer of the system-level chip directly transmits the received report point data of the handwriting to a display screen controller;
the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
the display screen controller drives the ink screen to display the handwriting by using the first driving waveform;
the core layer of the system-level chip directly transmits the received report point data of the handwriting to the display screen controller, and the method further comprises the following steps:
the system-level chip removes pressure-sensitive data in the received report point data of the handwriting to obtain report point data only comprising coordinate data;
and the system-level chip transmits the report point data only comprising the coordinate data to the display screen controller.
2. The method of claim 1, wherein the display screen controller looks up a LUT table to obtain a first driving waveform for an ink screen based on the tick data, further comprising:
the display screen controller receives the report point data;
the display screen controller establishes a layer cache;
the display screen controller generates a first handwriting image of the handwriting in the layer cache according to the report point data;
and the display screen controller looks up a table in an LUT (look-up table) according to the first handwriting image to obtain a first driving waveform of the ink screen.
3. The method of claim 1, further comprising:
the core layer of the system-level chip transmits the received report point data of the handwriting to the application layer of the system-level chip;
the application layer generates a second handwriting image of the handwriting according to the report point data;
the application layer converts the second handwriting image into a gray image;
the application layer transmits the gray level image to the core layer;
the core layer transmits the gray level image to the display screen controller;
the display screen controller searches an LUT table to obtain a second driving waveform of the ink screen based on the gray image;
and the display screen controller drives the ink screen to display the handwriting by using the second driving waveform.
4. A method according to claim 3, wherein the step of the core layer of the system-on-chip transmitting the received punctuation data of the handwriting to the application layer of the system-on-chip is performed simultaneously with or after the step of the system-on-chip transmitting the received punctuation data of the handwriting to the display controller.
5. The method of claim 3, wherein the core layer transmits the grayscale image to the display screen controller, further comprising:
the core layer receives the gray level image transmitted by the application layer;
and after the pen point of the stylus pen leaves the ink screen, the core layer transmits the gray scale image to the display screen controller.
6. The method of claim 5, wherein the tip of the stylus being clear of the ink screen is determined by:
and if the reception of the newspaper point data is stopped, judging that the pen point of the stylus pen leaves the display screen.
7. A method according to claim 3 wherein the second script image comprises one or more of color, thickness and nib of the handwritten script.
8. The utility model provides a handwriting reading equipment, its characterized in that includes electric connection's electromagnetic board, system level chip, display screen controller and ink screen in proper order, the electromagnetic board is used for detecting the electromagnetic pen is in the handwriting operation instruction that produces on the ink screen, the system level chip with the display screen controller is used for depositing at least an executable instruction respectively, the executable instruction makes the system level chip with the display screen controller carries out following operation:
the core layer of the system-level chip directly transmits the received report point data of the handwriting to a display screen controller;
the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
the display screen controller drives the ink screen to display the handwriting by using the first driving waveform;
the core layer of the system-level chip directly transmits the received report point data of the handwriting to the display screen controller, and the method further comprises the following steps:
the system-level chip removes pressure-sensitive data in the received report point data of the handwriting to obtain report point data only comprising coordinate data;
and the system-level chip transmits the report point data only comprising the coordinate data to the display screen controller.
9. The handwriting reading apparatus of claim 8, wherein said display screen controller looks up a LUT table to obtain a first driving waveform for an ink screen based on said hit data, further comprising:
the display screen controller receives the report point data;
the display screen controller establishes a layer cache;
the display screen controller generates a first handwriting image of the handwriting in the layer cache according to the report point data;
and the display screen controller looks up a table in an LUT (look-up table) according to the first handwriting image to obtain a first driving waveform of the ink screen.
10. The handwriting reading device of claim 8, wherein said executable instructions further cause said system-on-chip and said display screen controller to:
the core layer of the system-level chip transmits the received report point data of the handwriting to the application layer of the system-level chip;
the application layer generates a second handwriting image of the handwriting according to the report point data;
the application layer converts the second handwriting image into a gray image;
the application layer transmits the gray level image to the core layer;
the core layer transmits the gray level image to the display screen controller;
the display screen controller searches an LUT table to obtain a second driving waveform of the ink screen based on the gray image;
and the display screen controller drives the ink screen to display the handwriting by using the second driving waveform.
11. The handwriting reading apparatus according to claim 10, wherein the step of the core layer of the system-on-chip transmitting the received punctuation data of the handwriting to the application layer of the system-on-chip is performed simultaneously with or after the step of the system-on-chip transmitting the received punctuation data of the handwriting to the display screen controller.
12. The handwriting reading apparatus of claim 10, wherein said core layer transmits said grayscale image to said display screen controller, further comprising:
the core layer receives the gray level image transmitted by the application layer;
and after the pen point of the stylus pen leaves the ink screen, the core layer transmits the gray scale image to the display screen controller.
13. The handwriting reading apparatus of claim 12, wherein the tip of said handwriting pen leaving said ink screen is determined by:
and if the reception of the newspaper point data is stopped, judging that the pen point of the stylus pen leaves the display screen.
14. The handwriting reading apparatus of claim 10, wherein the second handwriting image comprises one or more of color, thickness and nib of the handwriting.
15. A computer storage medium having stored therein at least one executable instruction that causes a system-on-chip and display controller to:
the core layer of the system-level chip directly transmits the received report point data of the handwriting to a display screen controller;
the display screen controller searches an LUT table to obtain a first driving waveform of the ink screen based on the report point data;
the display screen controller drives the ink screen to display the handwriting by using the first driving waveform;
the core layer of the system-level chip directly transmits the received report point data of the handwriting to the display screen controller, and the method further comprises the following steps:
the system-level chip removes pressure-sensitive data in the received report point data of the handwriting to obtain report point data only comprising coordinate data;
and the system-level chip transmits the report point data only comprising the coordinate data to the display screen controller.
16. The computer storage medium of claim 15, wherein the display screen controller retrieves a first drive waveform for an ink screen by looking up a LUT table based on the tick data, further comprising:
the display screen controller receives the report point data;
the display screen controller establishes a layer cache;
the display screen controller generates a first handwriting image of the handwriting in the layer cache according to the report point data;
and the display screen controller looks up a table in an LUT (look-up table) according to the first handwriting image to obtain a first driving waveform of the ink screen.
17. The computer storage medium of claim 15, wherein the executable instructions further cause the system-on-chip and the display controller to:
the core layer of the system-level chip transmits the received report point data of the handwriting to the application layer of the system-level chip;
the application layer generates a second handwriting image of the handwriting according to the report point data;
the application layer converts the second handwriting image into a gray image;
the application layer transmits the gray level image to the core layer;
the core layer transmits the gray level image to the display screen controller;
the display screen controller searches an LUT table to obtain a second driving waveform of the ink screen based on the gray image;
and the display screen controller drives the ink screen to display the handwriting by using the second driving waveform.
18. The computer storage medium of claim 17, wherein the step of the core layer of the system-on-chip transmitting the received hit data of the handwriting to the application layer of the system-on-chip is performed at the same time or after the step of the system-on-chip transmitting the received hit data of the handwriting to the display controller.
19. The computer storage medium of claim 17, wherein the core layer transmits the grayscale image to the display screen controller, further comprising:
the core layer receives the gray level image transmitted by the application layer;
and after the pen point of the stylus pen leaves the ink screen, the core layer transmits the gray scale image to the display screen controller.
20. The computer storage medium of claim 19, wherein the tip of the stylus being clear of the ink screen is determined by:
and if the reception of the newspaper point data is stopped, judging that the pen point of the stylus pen leaves the display screen.
21. The computer storage medium of claim 17, wherein the second handwriting image comprises one or more of color, thickness, and nib of the handwriting.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913499.8A CN110703939B (en) | 2019-09-25 | 2019-09-25 | Handwriting reading equipment and report point data processing method thereof, and computer storage medium |
| PCT/CN2019/120012 WO2021056786A1 (en) | 2019-09-25 | 2019-11-21 | Handwritten reading device, report point data processing method thereof, and computer storage medium |
| US17/762,365 US11862116B2 (en) | 2019-09-25 | 2019-11-21 | Handwriting reading device, method for processing report point data, and computer storage medium |
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| CN201910913499.8A CN110703939B (en) | 2019-09-25 | 2019-09-25 | Handwriting reading equipment and report point data processing method thereof, and computer storage medium |
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| CN110703939A CN110703939A (en) | 2020-01-17 |
| CN110703939B true CN110703939B (en) | 2020-12-08 |
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| CN112527182A (en) * | 2020-12-23 | 2021-03-19 | 青岛海信移动通信技术股份有限公司 | Electronic device and pattern drawing method |
| CN114253418B (en) * | 2021-12-09 | 2024-05-31 | 科大讯飞股份有限公司 | Handwriting display method, device, equipment, system and storage medium |
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| CN108615506A (en) * | 2018-04-19 | 2018-10-02 | 深圳市国华光电科技有限公司 | A kind of electrophoretic electronic paper display and its display control method |
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| JP5526976B2 (en) * | 2010-04-23 | 2014-06-18 | セイコーエプソン株式会社 | Memory display device driving method, memory display device, and electronic apparatus |
| CN202075965U (en) * | 2010-12-21 | 2011-12-14 | 福州瑞芯微电子有限公司 | Electronic ink display screen controller integrated in SOC chip |
| CN102651199A (en) * | 2011-02-25 | 2012-08-29 | 联咏科技股份有限公司 | Bistable display and drive method and drive device of bistable display |
| CN108762597B (en) * | 2018-06-13 | 2019-09-24 | 掌阅科技股份有限公司 | The method for drafting and E-book reader of E-book reader handwriting |
| CN108959201B (en) * | 2018-07-18 | 2019-07-30 | 掌阅科技股份有限公司 | The method for drafting and E-book reader of E-book reader handwriting |
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| CN108615506A (en) * | 2018-04-19 | 2018-10-02 | 深圳市国华光电科技有限公司 | A kind of electrophoretic electronic paper display and its display control method |
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