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:
Apr. 18, 2017

Filed:

Aug. 19, 2014
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Danielle Griffith, Richardson, TX (US);

Viral Parikh, San Diego, CA (US);

Ryan Smith, Sachse, TX (US);

Per Torstein Roine, Oslo, NO;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/40 (2015.01); H03L 7/02 (2006.01);
U.S. Cl.
CPC ...
H03L 7/02 (2013.01); H04B 1/40 (2013.01);
Abstract

Digital control of a crystal oscillator is implemented in a manner that allows frequency accuracy to be traded off dynamically with power consumption. The oscillator transitions between a less accurate/lower power mode and a high accuracy/higher power mode smoothly without requiring any external clock source during the transition. Power consumption is optimized because the crystal oscillator provides the clock source during transitions between the power modes and no other clock source is needed for these transitions. The system can also optimize the startup time and steady state power consumption independently.


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