公开(公告)号：US20180098015A1

公开(公告)日：2018-04-05

申请号：US15566509

申请日：2015-04-14

Applicant: Center for Integrated Smart Sensors Foundation

Inventor： Sang Jin Lee ,  Jong Ho Park

IPC: H04N5/3745 ,  H04N5/378

CPC classification number: H04N5/37455 ,  H04N5/378

Abstract: Provided are a method and an apparatus for embodying an ADC and a PGA using a common amplifier. The apparatus for embodying ADC and PGA using a common amplifier according to the present invention may comprise: a switching unit for performing a phase shift according to a switching operation; a detection unit for detecting a pixel output in a first phase according to control of the switching unit; and an amplification and conversion unit for amplifying the pixel output detected in a second phase according to the control of the switching unit, and for performing an analog-digital conversion in a fourth phase according to the control of the switching unit.

公开(公告)号：US20180054574A1

公开(公告)日：2018-02-22

申请号：US15555538

申请日：2015-03-04

Applicant: CENTER FOR INTEGRATED SMART SENSORS FOUNDATION

Inventor： Jong Ho Park ,  Sang Jin Lee

IPC: H04N5/357 ,  H04N5/378 ,  H04N9/04

Abstract: A noise reduction unit included in a sensor array of a multi aperture camera comprises: at least one programmable gain amplifier (PGA) that outputs a difference value between a reset voltage for at least one pixel included in the sensor array and a signal voltage for the at least one pixel, and/or respective values, as an analog signal for the at least one pixel; and at least one AD converter that converts the outputted analog signal for the at least one pixel to a digital signal for the at least one pixel and outputs the digital signal, wherein the at least one AD converter performs an over-sampling operation that samples the output signal of the at least one PGA for the at least one pixel multiple times and/or an averaging operation that calculates an average value for output signal of the at least one PGA which has been sampled multiple times.