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. 20, 2012
Filed:
Dec. 05, 2008
Applicant:
Juha H-p Nurmi, Salo, FI;
Inventor:
Juha H-P Nurmi, Salo, FI;
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/28 (2006.01); G01R 31/08 (2006.01); G01R 31/00 (2006.01); G01P 3/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
It is disclosed to measure the impedance of a read-out line. The read-out line includes at least two cascaded electrical circuit segments, each electrical circuit segment including two longitudinal arms, wherein one of the longitudinal arms includes an electrical component, and a lateral arm including a switch configured to close in the presence of an object in the vicinity of the switch. The measured impedance of the read-out line can be compared to a preset value corresponding to an allowable value of the impedance of the read-out line.