US 12,130,987 B2
Sensor device and a method of driving the same
Keum Dong Jung, Yongin-si (KR); Oh Jo Kwon, Yongin-si (KR); Ji Woong Kim, Yongin-si (KR); Hyung Gun Ma, Yongin-si (KR); Seong An Park, Yongin-si (KR); and Sang Hyun Heo, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Dec. 6, 2022, as Appl. No. 18/075,845.
Claims priority of application No. 10-2022-0037414 (KR), filed on Mar. 25, 2022.
Prior Publication US 2023/0305657 A1, Sep. 28, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 1/04 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/0418 (2013.01) [G06F 1/04 (2013.01); G06F 3/0446 (2019.05)] 15 Claims
OG exemplary drawing
 
1. A sensor device, comprising:
first sensors;
second sensors configured to form capacitances with the first sensors;
a sensor transmitter connected to the first sensors and configured to supply driving signals having a first frequency to the first sensors; and
a sensor receiver connected to the second sensors and configured to receive sensing signals from the second sensors,
wherein the sensor receiver comprises:
a multipath filter having a center frequency set to the first frequency; and
a first chopper integrator connected to the multipath filter, and having a center frequency set to the first frequency,
wherein the multipath filter includes a plurality of first paths, connected in parallel to each other between a first input terminal and a first output terminal, and a plurality of second paths, connected in parallel to each other between a second input terminal and a second output terminal, and
wherein the first paths and the second paths share filters,
wherein one of the first paths successively includes a first input mixer, a first filter, and a first output mixer,
wherein one of the second paths includes a second input mixer and a second output mixer,
wherein an output terminal of the second input mixer is connected to an input terminal of the first filter, and
wherein an input terminal of the second output mixer is connected to an output terminal of the first filter.