Patent ID: 11899878
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. An input sensing device, comprising:
electrodes;
a signal processor; and
an analog front-end coupled between the electrodes and the signal processor,
wherein the analog front-end comprises:
a first charge amplifier including input terminals electrically coupled to two electrodes among the electrodes;
a first demodulation circuit electrically coupled to output terminals of the first charge amplifier;
a first analog-to-digital converter coupled to the first demodulation circuit;
a second charge amplifier including an input terminal coupled to one of the output terminals of the first charge amplifier;
a second demodulation circuit coupled to an output terminal of the second charge amplifier; and
a second analog-to-digital converter coupled to the second demodulation circuit, and

wherein the one of the output terminals of the first charge amplifier is selectively coupled to the first demodulation circuit or the input terminal of the second charge amplifier.