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:
Sep. 27, 2016
Filed:
May. 25, 2015
Pixart Imaging Inc., Hsin-Chu, TW;
Cheng-Seng Hsu, Hsin-Chu, TW;
PIXART IMAGING INC., Hsin-Chu, TW;
Abstract
A four-phase clock generator with timing sequence self-detection including a phase-locked loop (PLL), a frequency dividing module, and a detection and control module. The PLL generates a first to a fourth reference clock signal with the same frequency, respectively, wherein each consecutive two of the first to the fourth reference clock signals have a 90-degree phase difference. The frequency dividing module is coupled to the PLL and determines whether to perform frequency dividing on the first to the fourth reference clock signals to obtain a first through a fourth output clock signal according to a first control signal. The detection and control module is coupled to the frequency dividing module and detects a timing sequence of the first to the fourth output clock signals to output the first control signal accordingly.