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:
Feb. 25, 2020
Filed:
Apr. 10, 2018
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Sarma Sundareswara Gunturi, Bengaluru, IN;
Sundarrajan Rangachari, Trichy, IN;
Aswath Vs, Kannur, IN;
Raunak Dhaniwala, Jaipur, IN;
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/24 (2006.01); H03K 21/38 (2006.01); H03L 7/02 (2006.01);
U.S. Cl.
CPC ...
H03L 7/24 (2013.01); H03K 21/38 (2013.01); H03L 7/02 (2013.01);
Abstract
A digital local oscillator includes a look-up table and oscillator control circuitry. The look-up table contains samples of the digital local oscillator signal. The oscillator control circuitry is configured to select samples from the look-up table based on an accumulated phase value. The oscillator control circuitry is also configured to add a correction value to the accumulated phase value based on a difference of a frequency of the digital local oscillator signal and a desired frequency.