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:
Nov. 01, 2016
Filed:
Jan. 10, 2014
Applicant:
Google Inc., Mountain View, CA (US);
Inventors:
Clemenz Portmann, Los Altos, CA (US);
Cheng-Yi Andrew Lin, Mountain View, CA (US);
Shahriar Rabii, Palo Alto, CA (US);
Assignee:
GOOGLE INC., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/03 (2006.01); H03B 5/06 (2006.01); H03L 7/23 (2006.01); H03B 27/00 (2006.01); H03L 7/24 (2006.01); H03B 5/36 (2006.01);
U.S. Cl.
CPC ...
H03B 5/06 (2013.01); H03B 5/36 (2013.01); H03B 5/362 (2013.01); H03B 5/364 (2013.01); H03B 27/00 (2013.01); H03L 7/23 (2013.01); H03L 7/24 (2013.01); H03B 2200/0074 (2013.01);
Abstract
A modulated signal based on a low-precision, fast startup oscillator is provided to a circuit with a high-precision, slow startup oscillator. The frequency of the modulated signal ranges around the characteristic or resonant frequency of the high precision oscillator without using feedback from the high precision oscillator circuit. An implementation can include one or more variable gain circuits that can be adjusted based on an amplitude threshold in relation to the output signal of the high precision oscillator circuit.