Title:
無線位置センサー
Document Type and Number:
Japanese Patent JP4549624
Kind Code:
B2
Abstract:
Apparatus for tracking an object includes a plurality of field generators, which generate electromagnetic fields at different, respective frequencies in a vicinity of the object, and a radio frequency (RF) driver, which radiates a RF driving field toward the object. A wireless transponder is fixed to the object. The transponder includes at least one sensor coil, in which a signal current flows responsive to the electromagnetic fields, and a power coil, which receives the RF driving field and conveys electrical energy from the driving field to power the transponder. The power coil also transmits an output signal responsive to the signal current to a signal receiver, which processes the signal to determine coordinates of the object.
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Inventors:
Assaf Gobari
Application Number:
JP2002370857A
Publication Date:
September 22, 2010
Filing Date:
December 20, 2002
Export Citation:
Assignee:
Biosense Webster Incorporated
International Classes:
A61B5/06; G01B7/00; A61B5/00; A61B19/00; H04B1/59
Domestic Patent References:
| JP62032304A | ||||
| JP7500979A | ||||
| JP2001309892A |
Foreign References:
| US6239724 |
Attorney, Agent or Firm:
Konobu Kato