US 12,149,775 B2
Pointing remote control method and system
Yubing Hu, Dongguan (CN); Kang Chung Liu, Shanghai (CN); Tao Jing, Shenzhen (CN); and Liang Li, Dongguan (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Appl. No. 17/997,440
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Apr. 23, 2021, PCT No. PCT/CN2021/089439
§ 371(c)(1), (2) Date Oct. 28, 2022,
PCT Pub. No. WO2021/218830, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 202010365011.5 (CN), filed on Apr. 30, 2020.
Prior Publication US 2023/0232060 A1, Jul. 20, 2023
Int. Cl. H04N 21/422 (2011.01); H04N 21/426 (2011.01)
CPC H04N 21/42221 (2013.01) [H04N 21/426 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A display device, comprising:
a processor;
a display screen; and
a plurality of infrared receivers arranged into an infrared receiver array, wherein the infrared receiver array is coupled to the display screen and is configured to receive a patterned infrared signal sent by a remote control device, and wherein the patterned infrared signal comprises a circular ring infrared signal;
wherein the processor is configured to:
obtain a projection pattern of the patterned infrared signal on the display screen;
wherein the projection pattern comprises a circular ring projection pattern or an oval ring projection pattern, and energy in different rings in the circular ring infrared signal is different;
obtain positions of M receiving points covered by the circular ring projection pattern or the oval ring projection pattern on the infrared receiver array, wherein M is a positive integer;
determine circular rings corresponding to the M receiving points by using the positions of the M receiving points as centers and using outer ring radiuses and inner ring radiuses that correspond to signal strength of the circular ring infrared signal received by the M receiving points; and
determine an overlapping area of M circular rings based on the circular rings respectively corresponding to the M receiving points, and determine a central position of the overlapping area as a pointing position; and
wherein the display screen is configured to display a prompt mark in the pointing position of the display screen, wherein the prompt mark prompts a user with the pointing position of the remote control device on the display screen.