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:
Dec. 30, 2014

Filed:

Feb. 22, 2013
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Johannes Hubertus Antonius Brekelmans, Nederweert, NL;

Reinier Hoogendoorn, Veldhoven, NL;

Nenad Pavlovic, Eindhoven, NL;

Assignee:

NXP, B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/32 (2006.01); H03L 5/00 (2006.01); H03B 5/36 (2006.01); H03B 5/06 (2006.01); H03L 3/00 (2006.01); H03B 5/12 (2006.01);
U.S. Cl.
CPC ...
H03L 5/00 (2013.01); H03B 5/36 (2013.01); H03B 5/06 (2013.01); H03L 3/00 (2013.01); H03B 5/1212 (2013.01); H03B 5/124 (2013.01); H03B 5/12 (2013.01);
Abstract

An oscillator circuit comprising first and second resonator terminals for connecting to respective terminals of a resonator. The oscillator circuit also comprises a first inverting amplifier connected between the first and second resonator terminals in a first mode of operation; and a back to back pair of second inverting amplifiers connected between the first and second resonator terminals in a second mode of operation. There is also provided a controller configured to compare an operational parameter of the oscillator circuit to a switchover threshold, and switch the oscillator circuit from the first mode of operation to the second mode of operation when the operational parameter exceeds the switchover threshold.


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