Back to results
US 2021/0281785 A1Published application
Image sensing device and operating method thereof
AssigneeSK hynix Inc.
InventorsYu Jin PARK, Jeong Eun SONG, Kang Bong SEO, Min Seok SHIN, Jae Hyung JANG
Life of this patent
Estimating the term…
Abstract
An image sensing device includes at least one unit pixel including a plurality of pixels for generating a plurality of pixel signals based on a plurality of control signals having different phases, and an equalizing circuit suitable for equalizing noise that occurs in the plurality of pixels during a reset operation on the unit pixel.
Claims12
An image sensing device comprising:
- at least one unit pixel including a plurality of pixels for generating a plurality of pixel signals based on a plurality of control signals having different phases;
- and
- an equalizing circuit suitable for equalizing noise that occurs in the plurality of pixels during a reset operation on the unit pixel.
An image sensing device comprising:
- a first pixel including a first charge storage circuit for storing first charges during a transmission period, a first sensing circuit for generating the first charges based on a first control signal having a first phase during the transmission period and a first reset circuit for resetting the first charge storage circuit and the first sensing circuit during a reset period;
- a second pixel including a second charge storage circuit for storing second charges during the transmission period, a second sensing circuit for generating the second charges based on a second control signal having a second phase during the transmission period, and a second reset circuit for resetting the second charge storage circuit and the second sensing circuit during the reset period;
- and
- an equalizing circuit coupled in common to a first node between the first reset circuit and the first sensing circuit, and to a second node between the second reset circuit and the second sensing circuit.
1 more element
An operating method of an image sensing device, comprising:
- equalizing noise that occurs due to first and second reset circuits respectively included in first and second pixels based on a reset signal and an equalizing signal;
- storing first charges generated by a first sensing circuit included in the first pixel in a first charge storage circuit included in the first pixel based on a first control signal having a first phase;
- storing second charges generated by a second sensing circuit included in the second pixel in a second charge storage circuit included in the second pixel based on a second control signal having a second phase;
- reading out first and second pixel signals corresponding to the first and second charges stored in the first and second charge storage circuits from the first and second pixels, respectively, based on a selection signal;
- and
- generating a depth information signal from which the noise is offset based on the first and second pixel signals.
3 more elements
Dependencies are inferred from the claim text.