Patent ID: 9001071
Filing Date: 2015-04-07
Classification: G06F

Abstract:
1. An energy-efficient touch panel control method comprising: transforming a plurality of analog output voltages into a plurality of digital trace data according to a plurality of capacitive load parameters by an analog to digital conversion unit; storing the plurality of the digital trace data into a buffer memory; and controlling operating modes of the analog to digital conversion unit and an operation unit according to a data number of the data stored in the buffer memory; wherein the analog to digital conversion unit is operated in a sleep mode, and the operation unit is operated in an active mode when the data number is greater than or equal to a predefined value, such that the operation unit processes the data stored in the buffer memory; and wherein the analog to digital conversion unit is operated in an active mode, and the operation unit is operated in a sleep mode, after the operation unit completes processing the data stored in the memory buffer.