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. 08, 2018
Filed:
Apr. 04, 2017
Pixart Imaging (Penang) Sdn. Bhd., Penang, MY;
Wooi Kip Lim, Penang, MY;
PixArt Imaging (Penang) SDN. BHD., Penang, MY;
Abstract
An image sensor circuit, comprises: a photo sensing circuit including a photo sensitive device for sensing a light signal to generate a photo sensing signal at a photo sensing output node; a charge storage device, coupled to an integration node; an integration switch coupled between the photo sensing output node and the integration node, operating according to an integration control signal; and a reset circuit coupled between a voltage supply and the integration node, operating according to a reset control signal and a read control signal, wherein the integration node includes an integration voltage. In a reset time period, the integration switch is conductive, and the reset circuit generates a reset signal on the integration node to bias the photo sensitive device through the integration switch to an active state and to charge the charge storage device such that the integration voltage is determined to be at a reset level.