ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,432,470, issued on Sept. 30, was assigned to PixArt Imaging Inc. (Hsin-Chu, Taiwan).

"Mechanism of effectively shortening settling time of pixel circuit" was invented by Wooi Kip Lim (Penang, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of an image sensor device includes: providing a pixel array having multiple bipolar junction transistor (BJT) pixel circuits arranged in N rows and M columns; and shortening a setting time period of a BJT sensing circuit in the pixel array during the setting time period by dynamically changing a bias current provided from a current source of the BJT sensing circuit during the setting time period."

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