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:
Nov. 19, 2024

Filed:

Feb. 27, 2023
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventor:
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/093 (2006.01); H03L 7/085 (2006.01); H03L 7/099 (2006.01); G01S 7/03 (2006.01); H02M 3/02 (2006.01);
U.S. Cl.
CPC ...
H03L 7/093 (2013.01); H03L 7/085 (2013.01); H03L 7/099 (2013.01); G01S 7/03 (2013.01); G01S 7/032 (2013.01); H02M 3/02 (2013.01);
Abstract

In some examples, a digital frequency locked loop (DFLL) device includes a phase frequency detector (PFD) configured to receive a reference clock signal and an indicator of a primary clock signal and to determine differences between periods of the reference clock signal and the indicator. The DFLL also includes a controller coupled to the PFD. The controller is configured to store digital signals indicating a first and a second of the differences determined by the PFD, determine a period error by subtracting the second difference from the first difference, and compare the period error to a programmed threshold. The DFLL also includes a digitally controlled oscillator (DCO) coupled to the controller, the DCO configured to provide the primary clock signal having a frequency adjusted based on the comparison.


Find Patent Forward Citations

Quick Actions:

Pahkala, Janne. (2024). Period error correction in digital frequency locked loops (U.S. Patent No. 12149253). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12149253

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