Hand holding state detection method, capacitive touch apparatus and electronic device

A capacitive touch apparatus, comprising:

• a processor connected to a capacitor array;
• wherein the processor is configured to:
• acquire feature data output by each coupling capacitor in the capacitor array when the coupling capacitor is touched, and reference feature data corresponding to each coupling capacitor;
• determine a feature region formed by touch on the capacitor array by comparing the feature data output by each coupling capacitor with the corresponding reference feature data to obtain a feature data difference, position of a coupling capacitor whose feature data difference is greater than a first threshold is used to determine the feature region;
• perform statistical counting to determine variation degree of the feature data output by different coupling capacitors in the feature region, wherein the statistical counting is performed according to variance or differential calculation among the feature data output by the different coupling capacitors in the feature region;
• and
• determine a hand holding state is a finger holding state when the variation degree is greater than a second threshold:
• and determining the hand holding state is a palm holding state when the variation degree is less than a third threshold.

An electronic device, comprising a processor and a capacitor array connected to the processor;

• wherein the processor is configured to:
• acquire feature data output by each coupling capacitor in the capacitor array when the coupling capacitor is touched, and reference feature data corresponding to each coupling capacitor;
• determine a feature region formed by touch on the capacitor array by comparing the feature data output by each coupling capacitor with the corresponding reference feature data to obtain a feature data difference, position of a coupling capacitor whose feature data difference is greater than a first threshold is used to determine the feature region:
• perform statistical counting to determine variation degree of the feature data output by different coupling capacitors in the feature region, wherein the statistical counting is performed according to variance or differential calculation among the feature data output by the different coupling capacitors in the feature region;
• and
• determine a hand holding state is a finger holding state when the variation degree is greater than a second threshold;
• and determining the hand holding state is a palm holding state when the variation degree is less than a third threshold.