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:
Mar. 02, 2004
Filed:
Feb. 05, 2002
Applicant:
Inventor:
Derek Truesdale, San Jose, CA (US);
Assignee:
Anritsu Company, Morgan Hill, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 2/500 ; G01R 1/324 ;
U.S. Cl.
CPC ...
G01R 2/500 ; G01R 1/324 ;
Abstract
Analyzing a swept spectrum signal formed by mixing a ramping local oscillator and an input signal to generate an IF signal, the resulting IF signal having a phase change with respect to the input signal, the phase change including a quadratic portion. For analysis, the IF signal is processed such that the quadratic component of the phase change is removed. The quadratic component of the phase change is removed with a complex filter.