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US 2021/0330390 A1Published application
System and method for navigation
AssigneeMedtronic Navigation, Inc.
InventorsLeo Bredehoft, Brad Jacobsen, Shai Ronen
Life of this patent
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Abstract
Disclosed is a system for assisting in guiding and performing a procedure on a subject. The subject may be any appropriate subject such as inanimate object and/or an animate object. The guide and system may include various manipulable or movable members, such as robotic systems, and may be registered to selected coordinate systems.
Claims19
A method of tracking a tracking device with a navigation system in a navigation space, comprising:
- generating a spread spectrum signal;
- transmitting the generated spread spectrum signal as a tracking signal;
- receiving the tracking signal;
- demultiplexing and equalizing the received tracking signal;
- and
- recovering the impulse response from the demultiplexed and equalized tracking signal as an impulse;
- wherein a pose of a tracking device is operable to be determined with the impulse recovered from the received tracking signal.
4 more elements
A method of determining whether a distorting object is present when tracking a tracking device with a navigation system in a navigation space, comprising:
- generating a binary signal;
- generating a pseudo-noise signal;
- transmitting the generated binary pseudo-noise signal as a tracking signal in a spread spectrum;
- receiving the tracking signal;
- demultiplexing and equalizing the received tracking signal;
- and
- recovering a full impulse response from the equalized tracking signal;
- evaluating the recovered impulse response for a residual signal in addition to an initial impulse from the recovered impulse response;
- and
- evaluating whether the distorting object is present;
- wherein a pose, which can include at least some coordinates of position and/or orientation, of a tracking device is operable to be determined based at least on the corrected impulse recovered from the received tracking signal.
8 more elements
Dependencies are inferred from the claim text.