| 摘要 |
PURPOSE: A control circuit for a sensing electrode array, a control method, and a touch control sensing system using the same are provided to implement high operating speed without using an integrator. CONSTITUTION: A signal strength analyzer(412) acquires a strength signal corresponding to a sensing signal of a sensing line in sensing electrode arrays. A strength phase frequency converter(415) generates a phase frequency signal corresponding to the strength signal. The frequency or phase of the phase frequency signal is related to a level of the strength signal. A phase frequency analyzer(416) controls the size of the signal corresponding to the sensing line based on the phase frequency signal. The signal strength analyzer is a peak detector or an envelope detector. [Reference numerals] (412) Signal strength analyzer; (413) Switch; (415) Strength-phase frequency converter; (416) Phase frequency analyzer; (45) Driving signal generator; (46) Calculation and processing unit |
