Title: Wireless position transducer with digital signalling
Application Number: 200610121226 Application Date: 2006.07.14
Publication Number: 1911171 Publication Date: 2007.02.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A61B5/06;G01V3/10
Applicant(s) Name: Biosense Webster Inc. Address:
Inventor(s) Name: Altmann Andres Claudio;Govari Assaf;Ephrath Yaron
Attorney & Agent: wang xiaoheng liang yong
Abstract:
    The invention relates to apparatus for tracking an object including a position transducer, which is adapted to be fixed to the object. The position transducer includes a digital microcontroller, which includes a plurality of output pins, and which is operative to generate an alternating digital output at a selected frequency on at least one of the output pins. At least one transmit antenna is coupled directly to the at least one of the output pins, so that the at least one antenna transmits a magnetic field at the selected frequency responsively to the alternating digital output. A field sensor senses the magnetic field and generates a signal responsively thereto. A processor receives and processes the signal in order to determine coordinates of the position transducer.
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