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:
Feb. 02, 2016
Filed:
Dec. 31, 2003
Applicants:
J. Nelson Wright, Mercer Island, WA (US);
Laurence J. Newell, Mercer Island, WA (US);
Edward J. Vertatschitsch, Bellevue, WA (US);
Inventors:
J. Nelson Wright, Mercer Island, WA (US);
Laurence J. Newell, Mercer Island, WA (US);
Edward J. Vertatschitsch, Bellevue, WA (US);
Assignee:
Varian Medical Systems, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 19/00 (2006.01); G08B 13/24 (2006.01); A61B 17/00 (2006.01);
U.S. Cl.
CPC ...
A61B 19/54 (2013.01); A61B 19/5244 (2013.01); G08B 13/2414 (2013.01); A61B 2017/00411 (2013.01); A61B 2019/5251 (2013.01); A61B 2019/5475 (2013.01);
Abstract
A receiver for determining the location of a marker that is excited with an exciting waveform. A sensing array having coils is used to sense magnetic flux from the resonating marker. The coils provide inputs to the receiver. The receiver includes a correlation processor for analyzing the inputs in a coherent manner. Further, the receiver is adapted to tune to the resonant frequency of a marker.