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:
Aug. 09, 2016
Filed:
Oct. 02, 2015
Pixart Imaging (Penang) Sdn. Bhd., Penang, MY;
Wooi-Kip Lim, Penang, MY;
PIXART IMAGING (PENANG) SDN. BHD., Penang, MY;
Abstract
The present disclosure illustrates a pre-flash time adjusting circuit. The pre-flash time adjusting circuit comprises a first pre-flash time adjusting unit coupled to an image sensing array. The image sensing array comprises a plurality of pixel units. The first pre-flash time adjusting unit comprises a switching module and a storage capacitor. When the image sensing array senses a light beam, the switching module selectively connects a first switch and the storage capacitor, such that the storage capacitor starts to charge the first pixel units of the first pixel group, until base-emitter voltages of a plurality of bipolar junction transistors disposed in the first pixel units reaches a stable state.