Projection reverse control method and device

Patent metadata

Field	Value
Publication number	US-12470762-B2
Application number	US-202218564902-A
Country	US
Kind code	B2
Filing date	May 11, 2022
Priority date	May 31, 2021
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

In a projection reverse control method a first electronic device sends a projection picture to a second electronic device. The second electronic device is connected to a peripheral device. The first electronic device establishes a connection to the peripheral device. The first electronic device receives a first instruction from the peripheral device. The first instruction is generated by the peripheral device based on a user operation. The first electronic device performs a corresponding operation according to the first instruction. The first electronic device sends, to the second electronic device, a projection picture after the corresponding operation is performed.

First claim

What is claimed is:

1 . A method implemented by a first electronic device, wherein the method comprises:
sending, to a second electronic device that is coupled to a peripheral device, a projection picture; establishing a direct connection between the first electronic device and the peripheral device; receiving, from the peripheral device, a first instruction that is based on a user operation; performing, according to the first instruction, a corresponding operation; and sending, to the second electronic device, the projection picture after performing the corresponding operation.

2 . The method of claim 1 , further comprising:
receiving, from the second electronic device before establishing the connection, connection information for connecting the second electronic device to the peripheral device; and further establishing, based on the connection information, the connection to the peripheral device.

3 . The method of claim 2 , wherein receiving the connection information comprises:
receiving the connection information during real-time negotiation protocol parameter negotiation with the second electronic device; or receiving the connection information when establishing a trusted connection to the second electronic device or logging-in with a same account.

4 . The method of claim 2 , wherein the connection information comprises a physical address of the peripheral device and a token for connection verification.

5 . The method of claim 1 , wherein the second electronic device displays the projection picture of the first electronic device in full screen.

6 . The method of claim 1 , further comprising:
receiving, from the second electronic device, location information of the projection picture on a display of the second electronic device; and performing, when the location information indicates that the user operation is in the projection picture and according to the first instruction, the corresponding operation.

7 . The method of claim 1 , further comprising:
receiving, from the peripheral device, a second instruction that is based on a user operation; receiving, from the second electronic device, location information of the projection picture on a display of the second electronic device; and skipping executing the second instruction when the location information indicates that the user operation is outside the projection picture.

8 . The method of claim 1 , further comprising wirelessly coupling to the peripheral device.

9 . The method of claim 1 , further comprising coupling to the peripheral device through BLUETOOTH or WI-FI.

10 . The method of claim 1 , wherein the peripheral device comprises any one of a mouse, a keyboard, a stylus, or a handle, wherein the first instruction comprises any one of movement information of the mouse or the stylus or typing information of the keyboard or the handle, and wherein the movement information comprises a movement distance and a movement direction.

11 . A first electronic device comprising:
a memory configured to store programming instructions; and at least one processor coupled to the memory and configured to execute the programming instructions to cause the first electronic device to:
send, to a second electronic device that is coupled to a peripheral device, a projection picture;
establish a direct connection between the first electronic device and the peripheral device;
receive, from the peripheral device, a first instruction that is based on a user operation;
perform, according to the first instruction, a corresponding operation; and
send, to the second electronic device, the projection picture after performing the corresponding operation.

12 . The first electronic device of claim 11 , wherein the at least one processor is further configured to execute the programming instructions to cause the first electronic device to:
receive, from the second electronic device before establishing the connection, connection information for connecting the second electronic device to the peripheral device; and establish, based on the connection information, the connection to the peripheral device.

13 . The first electronic device of claim 12 , wherein the at least one processor is further configured to execute the programming instructions to cause the first electronic device to:
receive the connection information during real-time negotiation protocol parameter negotiation with the second electronic device; or receive the connection information when establishing a trusted connection to the second electronic device or logging-in with a same account.

14 . The first electronic device of claim 12 , wherein the connection information comprises a physical address of the peripheral device and a token for connection verification.

15 . The first electronic device of claim 11 , wherein the second electronic device displays the projection picture of the first electronic device in full screen.

16 . The first electronic device of claim 11 , wherein the at least one processor is further configured to execute the programming instructions to cause the first electronic device to:
receive, from the second electronic device, location information of the projection picture on a display of the second electronic device; and perform, when the location information indicates that the user operation is in the projection picture and according to the first instruction, the corresponding operation.

17 . The first electronic device of claim 11 , wherein the at least one processor is further configured to execute the programming instructions to cause the first electronic device to:
receive, from the peripheral device, a second instruction that is based on a user operation; receive, from the second electronic device, location information of the projection picture on a display of the second electronic device; and skip executing the second instruction when the location information indicates that the user operation is outside the projection picture.

18 . The first electronic device of claim 11 , wherein the second electronic device and the first electronic device are wirelessly coupled to the peripheral device.

19 . The first electronic device of claim 11 , wherein the second electronic device and the first electronic device are coupled to the peripheral device through BLUETOOTH or WI-FI.

20 . A method applied to a projection system, wherein the projection system comprises a first electronic device and a second electronic device that are connected to each other, wherein a peripheral device is connected to the second electronic device, and wherein the peripheral device is configured to perform operation control on a picture displayed by the second electronic device, the method comprising:
sending, by the first electronic device, a projection picture to the second electronic device; receiving and displaying, by the second electronic device, the projection picture; establishing, by the first electronic device, a direct connection to the peripheral device; generating, by the peripheral device in response to a user operation, a first instruction that is based on the user operation; sending, by the peripheral device, the first instruction to the first electronic device; receiving, by the first electronic device, the first instruction; performing, by the first electronic device, a corresponding operation according to the first instruction; sending, by the first electronic device to the second electronic device, the projection picture after

Assignees

• Huawei Tech Co Ltd

Inventors

• Wang Chunfeng

Classifications

• H04N21/43637

  involving a wireless protocol, e.g. Bluetooth®, RF or wireless LAN [IEEE 802.11] (arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114) · CPC title

• G09G5/14

  Display of multiple viewports · CPC title

• G06F9/452

  Remote windowing, e.g. X-Window System, desktop virtualisation (protocols for virtual reality H04L67/131) · CPC title

• G06F3/1454

  involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay · CPC title

• H04N21/4122 Primary

  additional display device, e.g. video projector (digital output for controlling a plurality of local displays G06F3/1423) · CPC title