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:
Aug. 02, 2022
Filed:
Feb. 15, 2021
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
Amr Abuellil, San Diego, CA (US);
Ahmed Emira, San Diego, CA (US);
Janakan Sivasubramaniam, San Diego, CA (US);
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
Abstract
A DLL circuit that has a programmable output frequency is provided. In various embodiments, the DLL circuit comprises an input configured to receive an input clock defining an input clock period; an output configured to provide a DLL output clock; a delay line configured to receive the input clock, wherein the delay line comprises a plurality of delay stages, each configured to generate one of a plurality of delay line output clocks, each of the delay line output clocks having a phase relative to the input clock based on a delay of the delay line; a clock generation circuit, configured to generate the DLL output clock based on a selected plurality of the delay line output clocks; and a control circuit configured to select which of the delay line output clocks the clock generation circuit uses to generate the DLL output clock.