Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-02-13
2007-02-13
Mullen, Thomas (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S572500, C340S572700, C343S742000
Reexamination Certificate
active
10997080
ABSTRACT:
A system for generating a magnetic field for excitation of a leadless marker assembly. The system of at least one embodiment includes a source generator that generates a plurality of alternating electrical signals each having an independently adjustable phase. A plurality of excitation coils are configured to simultaneously receive a respective one of the alternating electrical signals at a selected phase to generate a magnetic field. The phase of the alternating electrical signal for each excitation coil is independently adjustable relative to the phase of the alternating electrical signal for the other excitation coils so as to adjust the magnetic field from the respective coil. The magnetic fields from the excitation coils combine to form a spatially adjustable excitation field for excitation of the remote leadless marker assembly.
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Dimmer Steven C.
Mayo William T.
Wright J. Nelson
Calypso Medical Technologies, Inc.
Mullen Thomas
Perkins Coie LLP
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