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:
Dec. 03, 2019
Filed:
Jun. 29, 2018
Pixart Imaging Inc., Hsin-Chu County, TW;
Chien-Jung Chou, Hsin-Chu County, TW;
Han-Chi Liu, Hsin-Chu County, TW;
Wen-Cheng Yen, Hsin-Chu County, TW;
Pixart Imaging Inc., Hsin-Chu County, TW;
Abstract
A digital imaging device including a sensor array, an analog front end and a digital back end. The sensor array is configured to output black pixel data and normal pixel data. The analog front end is configured to amplify the black pixel data and the normal pixel data with a gain, and calibrate the amplified black pixel data and the amplified normal pixel data with a calibration value. The digital back end is configured to digitize the amplified and calibrated black pixel data, calculate a data offset according to digital black pixel data, determine a dynamic adjust scale, calculate the calibration value according to the gain, the data offset and the dynamic adjust scale, and adjust the gain according to the dynamic adjust scale.