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. 04, 2021
Filed:
Jun. 20, 2019
Pixart Imaging Incorporation, HsinChu, TW;
Kuan Tang, HsinChu, TW;
Yi-Cheng Chiu, HsinChu, TW;
Chia-Chi Kuo, HsinChu, TW;
Jui-Te Chiu, HsinChu, TW;
PIXART IMAGING INCORPORATION, Hsinchu, TW;
Abstract
A column parallel ADC circuit includes: plural column ADCs and a digital processing circuit. The plural column ADCs generate respective plural digital counts. The plural column ADCs include a first column ADC and a second column ADC. The first column ADC generates a first digital count according to a first analog signal, and the second column ADC generates a second digital count according to a second analog signal. The first digital count is a difference between a first digital signal and a second digital signal. The first and the second digital signals correspond to the first and the second analog signals respectively. The digital processing circuit generates the plural digital signals, wherein the digital processing circuit generates the first digital signal according to the first digital count and the second digital signal.