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:
Dec. 29, 2009
Filed:
May. 09, 2008
Paul Stevenson, Colorado Springs, CO (US);
Paul Stevenson, Colorado Springs, CO (US);
Marvell International Ltd., Hamilton, BM;
Abstract
An oscillator circuit for a plurality of resonator-based oscillators is provided. In a dual oscillator circuit, a first oscillator circuit operating at a first frequency is coupled to a second oscillator circuit operating at a lower frequency. The two circuits are separated by a low-pass filter that isolates the input stage of the first oscillator circuit from the input stage of the second oscillator circuit. A circuit leg shared between the first oscillator circuit and the second oscillator circuit is configured to couple the first input stage of the first oscillator circuit to a first external resonator resonate at the first frequency and couple the second input stage of the second oscillator circuit to a second external resonator resonate at the second frequency.