US 11,862,116 B2
Handwriting reading device, method for processing report point data, and computer storage medium
Chao Cheng, Beijing (CN); Bin Liu, Beijing (CN); and Hongtao Tao, Beijing (CN)
Assigned to ZHANGYUE TECHNOLOGY CO., LTD, Beijing (CN); and SHENZHEN ZHANGYUE TECHNOLOGY CO., LTD, Shenzhen (CN)
Appl. No. 17/762,365
Filed by ZHANGYUE TECHNOLOGY CO., LTD, Beijing (CN); and SHENZHEN ZHANGYUE TECHNOLOGY CO., LTD, Shenzhen (CN)
PCT Filed Nov. 21, 2019, PCT No. PCT/CN2019/120012
§ 371(c)(1), (2) Date Mar. 21, 2022,
PCT Pub. No. WO2021/056786, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 201910913499.8 (CN), filed on Sep. 25, 2019; and application No. 201921614727.3 (CN), filed on Sep. 25, 2019.
Prior Publication US 2022/0392412 A1, Dec. 8, 2022
Int. Cl. G09G 3/34 (2006.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01); G06F 3/046 (2006.01)
CPC G09G 3/344 (2013.01) [G06F 3/03545 (2013.01); G06F 3/046 (2013.01); G06F 3/0416 (2013.01); G09G 2310/06 (2013.01); G09G 2354/00 (2013.01); G09G 2370/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for processing report point data, comprising:
transmitting report point data associated with received handwriting to a display controller directly from a hardware layer of a System on Chip;
looking up a LUT table (Look-Up-Table) and acquiring a first waveform of driving an ink screen based on the report point data by the display controller, wherein the looking up the LUT table and acquiring the first waveform of driving the ink screen based on the report point data by the display controller further comprises:
receiving the report point data by the display controller,
establishing a layer cache by the display controller,
generating the first image of the handwriting in the layer cache based on the report point data by the display controller, and
looking up the LUT table and acquiring the first waveform of driving the ink screen based on the first image of the handwriting by the display controller;
driving the ink screen to display a first image of the handwriting using the first waveform by the display screen controller; and
wherein the method further comprises:
transmitting the report point data associated with the received handwriting to an application layer of the System on Chip by a core layer of the System on Chip;
generating a second image of the handwriting based on the report point data by the application layer;
converting the second image into a grayscale image by the application layer;
transmitting the grayscale image to the core layer by the application layer;
transmitting the grayscale image to the display controller by the core layer;
looking up the LUT table and acquiring a second waveform of driving the ink screen based on the grayscale image by the display controller; and
driving the ink screen to display the second image of the handwriting using the second waveform by the display controller.