Patent ID: 11966536
Assignee: BEIJING ESWIN COMPUTING TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A touch driving method used for a touch sensor, wherein, the touch sensor comprises a plurality of driving electrodes and a plurality of sensing electrodes intersecting with each other,
the touch driving method comprises:
determining a first driving electrode group and a second driving electrode group in a current driving time period according to a Code Division Multiple Access (CDM) code matrix, wherein, the first driving electrode group includes one or more driving electrodes that are expected to be discharged in the current driving time period among the plurality of driving electrodes, and the second driving electrode group includes one or more driving electrodes that are expected to be charged in the current driving time period among the plurality of driving electrodes; and
controlling utilizing power from the first driving electrode group to charge the second driving electrode group, in response to the determination,
wherein, the controlling utilizing power from the first driving electrode group to charge the second driving electrode group, comprises:
controlling utilizing the power from the first driving electrode group to charge the second driving electrode group up to a first time period; and
after the first time period, controlling utilizing a low level to release remaining power from the first driving electrode group, and controlling utilizing a high level to charge the second driving electrode group,
wherein, the touch driving method further comprises:
determining that the first time period ends in response to when a number of comparison results indicating a threshold condition being met is greater than or equal to a first preset number, each comparison result indicating whether a voltage difference between a first voltage value on a first driving electrode from the first driving electrode group and a corresponding second voltage value on a second driving electrode from the second driving electrode group meets a threshold condition.