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:
Jun. 03, 2003
Filed:
Feb. 08, 2001
Applicant:
Inventor:
Thomas K. Bohley, Colorado Springs, CO (US);
Assignee:
Fluke Corporation, Everett, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01R 2/726 ;
U.S. Cl.
CPC ...
C01R 2/726 ;
Abstract
A hand held test instrument measures cable lengths by applying a square wave signal to a conductor of a pair and detects the induced current in the other conductor of the pair. A synchronous detector measures the induced current, which is representative of the capacitance of the cable, which is representative of the length of the cable.