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:
Jan. 23, 2001
Filed:
Mar. 19, 1999
Applicant:
Inventors:
Assignee:
Bisense, Inc., New Brunswick, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/004 ; G01R 3/3025 ;
U.S. Cl.
CPC ...
G01B 7/004 ; G01R 3/3025 ;
Abstract
Apparatus for generating magnetic fields, including a plurality of radiator coils (,) and driver circuitry (,) coupled thereto, which drives the coils so as to generate magnetic fields at a plurality of driving frequencies, wherein each of the plurality of radiator coils (,) generates a field substantially only at a single, respective driving frequency. Preferably circuitry is associated with at least one of the plurality of radiator coils (,) for substantially eliminating magnetic fields generated by the other coils.