Patent ID: 11928279
Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. An active pen for wireless communication with a plurality of touch screens, wherein the plurality of touch screens and the active pen respectively corresponding to a plurality of wireless channels, a respective wireless channel is used for wireless communication between a touch screen and the active pen, and the active pen comprises:
a processing module, configured to:
send a coding signal to a first touch screen, wherein the coding signal is configured for the first touch screen to determine information on a position of the active pen on the first touch screen;
receive a wireless signal sent by the first touch screen, wherein the wireless signal is transmitted through a wireless channel corresponding to the active pen and carries identification information of the first touch screen; and
identify, among the plurality of touch screens, the first touch screen as a touch screen that is currently close to or in contact with the active pen according to the identification information of the first touch screen; and
a communication module configured to send a wireless message to the first touch screen through a wireless channel corresponding to the first touch screen;
wherein the processing module is configured to:
send the coding signal to the first touch screen to enable the first touch screen to receive the coding signal in response to the active pen being within a preset distance from the first touch screen;
wherein the preset distance is less than or equal to 10 mm.