Pointing remote control method and system

Patent metadata

Field	Value
Publication number	US-12149775-B2
Application number	US-202117997440-A
Country	US
Kind code	B2
Filing date	Apr 23, 2021
Priority date	Apr 30, 2020
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

A remote control device sends a patterned infrared signal to the display device. A display device receives the patterned infrared signal by using a plurality of infrared receivers. The display device obtains a projection pattern of the patterned infrared signal on a display screen. The display device determines a pointing position of the remote control device on the display screen based on the projection pattern. The display device displays a prompt mark in the pointing position of the display screen, where the prompt mark is used to prompt a user with the pointing position of the remote control device on the display screen.

First claim

What is claimed is:

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.

2. The display device according to claim 1 , further comprising:
a wireless communication interface, configured to receive control information that corresponds to a first button and that is sent by the remote control device; and
wherein the processor is further configured to:
determine a first control operation based on the control information corresponding to the first button and the pointing position; and
perform the first control operation.

3. The display device according to claim 2 , wherein the wireless communication interface is configured to:
receive the control information that corresponds to the first button and that is sent by the remote control device by using the patterned infrared signal.

4. The display device according to claim 2 , wherein the wireless communication interface is configured to:
receive the control information that corresponds to the first button and that is sent by the remote control device through Bluetooth.

5. A method, comprising:
receiving, by a display device using a plurality of infrared receivers, a patterned infrared signal sent by a remote control device, wherein the plurality of infrared receivers are arranged into an infrared receiver array, the infrared receiver array is coupled to a display screen, and the patterned infrared signal comprises a circular ring infrared signal;
obtaining, by the display device, 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;
obtaining, by the display device, 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;
determining, by the display device, 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;
determining, by the display device, an overlapping area of M circular rings based on the circular rings respectively corresponding to the M receiving points, and determining a central position of the overlapping area as a pointing position; and
displaying, by the display device, 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.

6. The method according to claim 5 , further comprising:
receiving, by the display device, control information that corresponds to a first button and that is sent by the remote control device;
determining, by the display device, a first control operation based on the control information corresponding to the first button and the pointing position; and
performing, by the display device, the first control operation.

7. The method according to claim 6 , wherein receiving, by the display device, the control information that corresponds to the first button and that is sent by the remote control device comprises:
receiving, by the display device, the control information that corresponds to the first button and that is sent by the remote control device by using the patterned infrared signal.

8. The method according to claim 6 , wherein receiving, by the display device, the control information that corresponds to the first button and that is sent by the remote control device comprises:
receiving, by the display device, the control information that corresponds to the first button and that is sent by the remote control device through Bluetooth.

9. The method according to claim 5 , wherein the plurality of infrared receivers are arranged around the display screen to form an infrared receiver frame.

10. A chip system, applied to a display device, wherein the chip system comprises:
a processor, configured to:
obtain a projection pattern of a patterned infrared signal on a display screen of the display device that is sent by a remote control device and that is received by a plurality of infrared receivers of the display device, wherein the plurality of infrared receivers is arranged into an infrared receiver array, and 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;
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;
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,
indicate to the display screen to display a prompt mark in the pointing position, wherein the prompt mark prompts a user with the pointing position of the remote control device on the display screen.

Assignees

• Huawei Tech Co Ltd

Inventors

• Hu Yubing
• Liu Kang Chung
• Jing Tao
• Li Liang

Classifications

• H04N21/426

  Internal components of the client {; Characteristics thereof} (H04N5/44 takes precedence) · CPC title

• G06F3/0308

  comprising a plurality of distinctive and separately oriented light emitters or reflectors associated to the pointing device, e.g. remote cursor controller with distinct and separately oriented LEDs at the tip whose radiations are captured by a photo-detector associated to the screen · CPC title

• H04N21/42225

  characterized by types of remote control, e.g. universal remote control · CPC title

• G06F3/0304

  Detection arrangements using opto-electronic means (constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042) · CPC title

• G06F3/0386

  for light pen · CPC title