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, 2006

Filed:

Oct. 10, 2003
Applicants:

Wei Yang, Burlington, CA;

Frederick Edward Sykes, Burlington, CA;

Inventors:

Wei Yang, Burlington, CA;

Frederick Edward Sykes, Burlington, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A precision, low jitter oscillator circuit is provided that is particularly well-suited for generating a clock signal in miniature digital systems, such as digital hearing aids. The oscillator includes a plurality of differential inverters configured in a feedback loop to generate an oscillating clock signal. The differential inverters include a capacitive trimming network for adjusting the frequency of the oscillating clock signal and employ resistive loads for minimizing jitter in the clock signal. The components of the oscillator are fabricated in a common silicon process to minimize the size of the oscillator.


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