Position tracking using quasi-DC magnetic fields

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专利权人:

Assaf Govari

发明人:

Assaf Govari,Andres Claudio Altmann,Yaron Ephrath

申请号：

US11130423

公开号：

US09295529B2

申请日:

2005.05.16

申请国别(地区):

US

年份:

2016

代理人:

摘要：

A method for tracking a position of a sensor includes generating a periodic magnetic field in a vicinity of the sensor, the field having a positive polarity phase and a negative polarity phase with respective constant positive and negative amplitudes. First and second field measurement signals are produced responsively to the magnetic field at the sensor during the positive and negative polarity phases, respectively. The position of the sensor is determined responsively to the first and second field measurement signals.

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