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.

Date of Patent:
Sep. 13, 2016

Filed:

Oct. 20, 2015
Applicant:

Stmicroelectronics S.r.l., Agrate Brianza, IT;

Inventors:

Enrico Monaco, Carpi, IT;

Gabriele Anzalone, Modena, IT;

Simone Erba, Pavia, IT;

Assignee:

STMicroelectronics S.r.l., Agrate Brianza, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/03 (2006.01);
U.S. Cl.
CPC ...
H03K 3/0315 (2013.01);
Abstract

A ring oscillator includes a first delay stage generating a first phase signal and a second delay stage generating a second phase signal. Each of the first and second delay stages includes variable resistance circuit. A phase comparator circuit performs a phase comparison between the first and second phase signals to generate a phase error signal. An amplifier circuit generates a control signal from the phase error signal. A feedback loop applies the control signal to control the resistance of the variable resistance circuits in the first and second delay stages.


Find Patent Forward Citations

Monaco, Enrico. (2016). Injection locked ring oscillator circuit with an analog quadrature calibration loop (U.S. Patent No. 9444435). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9444435

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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