Patent ID: 11915650
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. The sensing circuit of claim 7, wherein, in the first analog-to-digital conversion period, the channel connection signal has an active level,
wherein the channel connection switch couples the first electrode of the sampling capacitor and the first electrode of the reference capacitor to each other in response to the channel connection signal having the active level, and the second electrode of the sampling capacitor and the second electrode of the reference capacitor have a first voltage difference between the first sensing voltage and the initialization voltage, and
wherein the switch matrix couples the second electrode of the sampling capacitor and the second electrode of the reference capacitor to the analog-to-digital converter, and the analog-to-digital converter converts the first voltage difference into the first sensing data.