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:
Jun. 06, 2023

Filed:

Nov. 01, 2021
Applicant:

Nxp B. V., Eindhoven, NL;

Inventors:

Erik Olieman, Waalre, NL;

Mark Stoopman, Capelle aan den ijssel, NL;

Helmut Kranabenter, Graz, AT;

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/156 (2006.01); H04B 1/40 (2015.01);
U.S. Cl.
CPC ...
H03K 5/1565 (2013.01); H04B 1/40 (2013.01);
Abstract

A duty cycle correction (DCC) circuit for use in relation to differential signal communications, a method of providing duty cycle correction, and communications systems and methods employing same, are disclosed herein. In one example embodiment, the circuit includes a differential signal inverter circuit including first and second inverter circuits, each of which has a respective inverter and respective first and second transistor devices respectively coupled between the respective inverter and first and second voltages, respectively. The circuit also includes a feedback circuit coupled to respective output ports of the respective first and second inverter circuits and also to respective feedback input ports of the respective transistor devices. The feedback circuit operates to provide one or more feedback signals causing one or more of the transistor devices to perform current limiting. Respective duty cycles of output signals respectively are equal or substantially equal based on the current limiting.


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