Patent ID: 11857267
Assignee: MEDTRONIC NAVIGATION, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of operating a navigation system configured to navigate an instrument during a procedure, the method comprising:
generating a signal with a controller, wherein the signal is a spread spectrum signal including a binary pseudo noise signal;
sending the signal to a transmitter system;
transmitting the signal with the transmitter system;
receiving the transmitted signal at a receiver;
sending a receiver signal to the controller based on the transmitted signal that was received at the receiver;
evaluating the receiver signal to characterize and determine how to account for a hardware noise in the transmitter system and receiver of the navigation system;
wherein evaluating the receiver signal to characterize and account for the hardware noise includes calibrating and equalizing the receiver signal with the signal from the controller to generate an equalized signal by removing distortions of the controller and the receiver;
wherein the equalized signal is used to determine a pose of a tracking device with a tracking device signal and noise from external distortion.