Proximity detection circuit and proximity detection method with compensation

A proximity detection circuit with compensation, comprising:

• a detection circuit, generating a detection data and a reference data;
• a baseline processing circuit, coupled to said detection circuit, generating a baseline data, and correcting said baseline data according to said reference data;
• and
• a proximity sensing circuit, coupled to said baseline processing circuit, and generating a proximity signal according to said detection data, said baseline data, and a proximity threshold.

A proximity detection method with compensation, comprising:

• detecting a reference electrode and generating a reference data;
• generating a proximity signal according to a detection data, a baseline data, and a proximity threshold;
• and
• correcting said proximity threshold according to said reference data.

A proximity detection circuit with compensation, comprising:

• a detection circuit, generating a detection data and a reference data;
• a baseline processing circuit, coupled to said detection circuit, and generating a baseline data according to said detection data;
• a threshold processing circuit, coupled to said detection circuit, and generating a proximity threshold according to said reference data;
• and
• a proximity sensing circuit, coupled to said baseline processing circuit and said threshold processing circuit, and generating a proximity signal according to said detection data, said baseline data, and said proximity threshold.