Tobias Schroeder,Daniel Eduardo Groszmann,John Whidden,Steven Wayne Johnson
申请号：
US13586663
公开号：
US20140051983A1
申请日:
2012.08.15
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Electromagnetic tracking systems and methods for correcting hemispherical ambiguity are described. The system may include a single transmitter having three coils arranged in an industry-standard coil arrangement (ISCA). The tracking system may also contain a receiver having three coils arranged in an ISCA configuration, as well as a fourth coil having a different orientation then any of the other three coils of the receiver. The fourth coil may be used to determine the correct solution to the hemispherical ambiguity that can occur when tracking using two three-coil assemblies. Other embodiments are described.
