Touch Detection Circuit Noise Threshold Timing

The patent implements dynamic touch detection by adjusting the detection timing based on real-time noise level assessment. The system transitions from continuous detection to conditional detection, where the touch detection timing is dynamically selected between first timing (lower noise) and second timing (higher noise) based on the detected noise signal strength, thereby maintaining position accuracy while responding to touch inputs.

The patent changes the temporal parameter of touch detection by selecting different detection timings based on noise conditions. The system monitors noise signal strength and adjusts the detection timing parameter accordingly - using first timing when noise is below a threshold and second timing when noise exceeds the threshold, thus optimizing both response speed and position accuracy under varying noise conditions.

The patent implements a feedback mechanism where the noise detection result directly influences the touch detection timing selection. The system continuously monitors noise signal strength, compares it against a threshold, and uses this feedback to determine whether to perform touch detection at first timing or second timing, thereby avoiding position determination errors during high noise periods while maintaining efficient response during low noise periods.

The patent performs preliminary noise level assessment before executing touch detection. By detecting the noise signal strength in advance and comparing it with the threshold, the system determines the appropriate detection timing beforehand, ensuring that touch detection is performed at the optimal moment to minimize noise interference on position accuracy while maintaining acceptable response time.