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:
Dec. 20, 2018
Xilinx, Inc., San Jose, CA (US);
Jaewook Shin, San Jose, CA (US);
Didem Z. Turker Melek, San Jose, CA (US);
Parag Upadhyaya, Los Gatos, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
Electrical circuits and associated methods relate to duty cycle correction having a voltage controlled delay line VCDL controlled by an analog voltage and a digital command signal to generate a VCDLsignal. In an illustrative example, the analog voltage may be generated by an analog circuit, the analog circuit may include a reference voltage, a low-pass filter, an amplifier and a loop filter. In an illustrative example, the analog circuit may be controlled by an analog command signal. The analog command signal may be programmable applied on the analog circuit to produce the analog voltage. The digital command signal may be programmable to select desired delay band in the VCDL. The analog voltage and the digital command signal may be applied to the VCDL together to obtain a desired duty cycle.