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:
Jan. 04, 2022
Filed:
Apr. 15, 2021
Pixart Imaging (Penang) Sdn. Bhd., Penang, MY;
Kok-Siang Tan, Penang, MY;
PIXART IMAGING (PENANG) SDN. BHD., Penang, MY;
Abstract
A sensing circuit includes: a comparison circuit for comparing an input signal to a corresponding limit threshold; and a control circuit for periodically selecting the limit threshold and sampling a comparison result to execute an interval determination step, thus determining an interval of the input signal. The interval determination step includes steps Sand S. Step S: when the input signal is higher than an ascending upper limit threshold for consecutive plural times, assigning a higher adjacent interval as a following interval; when the input signal is lower than a descending lower limit threshold for consecutive plural times, assigning a lower adjacent interval as a following interval; and executing the interval determination step corresponding to the following interval. Step S: When no adjacent interval is assigned as the following interval, generating an interval output signal corresponding to the interval and entering the corresponding step S