Elan Microelectronic Corporation Patent applications |
Patent application number | Title | Published |
20160077667 | Scan method for a touch panel and touch device - The present invention relates to a scan method for a touch panel and a touch device. It operates two different Analog-to-Digital Converter calibrations to have different baselines and thresholds corresponding respectively to a cursory scan mode and a fine scan mode. In cursory scan mode, multiple traces are driven simultaneously and the signals from the traces are received simultaneously to enlarge the sensing value so that a touch object with a lower sensing signal is also detected. Further, the cursory scan mode with less electricity cost is used to first determine whether touch objects exists. When the touch objects do exist, the fine scan mode with more electricity cost is then operated. Therefore, the present invention can further reduce the electricity waste. | 03-17-2016 |
20140035870 | CONTROL METHOD AND ELECTRONIC STYLUS FOR TOUCH INPUT TO A CAPACITIVE TOUCHPAD MODULE - An electronic stylus emits an excitation signal to apply to a trace of a capacitive touchpad module near a touch point when the electronic stylus touches the capacitive touchpad module, so as to change a waveform of a charging/discharging signal in the trace, and depending on the waveform variation, the capacitive touchpad module can identify the touch point. | 02-06-2014 |