The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2020
Filed:
Oct. 23, 2018
Brillnics Inc., Grand Cayman, KY;
Toshinori Otaka, Tokyo, JP;
Kazuya Mori, Tokyo, JP;
BRILLNICS INC., Grand Cayman, KY;
Abstract
A comparator in an AD conversion part, under the control of a reading part, performs a first comparison processing outputting a digitized first comparison result signal with respect to a voltage signal corresponding to an overflow charge overflowing from a PDto an FDin an integration period, and a second comparison processing outputting a digitized second comparison result signal with respect to a voltage signal corresponding to a accumulated charge of the PDtransferred to the FDin a transfer period after the integration period and, in the first comparison processing, the period of the first comparison processing is divided into a plurality of sub periods and, in each of the sub periods, the comparator performs an AD conversion processing comparing the voltage signal of the output buffer part and the reference voltage and outputting the digitized comparison result signal. Due to this, it is possible to suppress an influence of a dark current of the FD, and becomes possible to suppress deterioration of the image while substantially realizing a broader dynamic range and a higher frame rate.