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. 18, 2003
Filed:
May. 15, 2002
Applicant:
Inventor:
David S. Nyce, Apex, NC (US);
Assignee:
MTS Systems Corporation, Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 2/300 ;
U.S. Cl.
CPC ...
G01F 2/300 ;
Abstract
An oscillating circuit is disclosed which is responsive to frequency variations caused by parameter changes in an associated slow wave structure sensitive element. A local oscillator and mixer circuit is used to subtract an offset frequency output to reset the oscillation frequency of the slow wave structure so that the output frequency will be in a range starting substantially at zero.