公开(公告)号：US20180359440A1

公开(公告)日：2018-12-13

申请号：US15991765

申请日：2018-05-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUTOMU KOBAYASHI ,  YUUSUKE SHIMIZU

IPC: H04N5/374 ,  H01L27/146 ,  H04N5/232

CPC classification number: H04N5/374 ,  H01L27/14603 ,  H01L27/14643 ,  H04N5/23229 ,  H04N5/232411 ,  H04N5/23245 ,  H04N5/353 ,  H04N5/3577 ,  H04N5/378 ,  H04N5/379

Abstract: An imaging device includes: pixels arranged in m rows by n columns; a comparator that generates a first output signal indicating a result of comparison between a first pixel signal outputted from each pixel located in an ath column among the pixels and a reference signal; a first counter that generates a first digital signal by counting a period from start of a first counting period to inversion of the first output signal; and a first control circuit that controls, in accordance with a magnitude correlation between the first digital signal obtained from a first pixel located at the ath column and a bth row and a threshold, an operation current of the comparator in the first counting period of a second pixel located at the ath column and a cth row different from the bth row.