System for calibrating an electromagnetic navigation system
First Claim
1. A system for calibrating an electromagnetic navigation system, comprising:
- an antenna assembly, including;
a substrate including a plurality of layers;
a plurality of pairs of transmit coils, each of the transmit coils being deposited on a respective one of the plurality of layers;
a plurality of receive coils configured to receive signals transmitted from the plurality of pairs of transmit coils, each of the receive coils being deposited on a respective one of the plurality of layers, and each of the plurality of pairs of transmit coils corresponding to a respective one of the plurality of receive coils;
a plurality of input terminals coupled to the plurality of pairs of transmit coils, respectively; and
a plurality of output terminals coupled to the plurality of receive coils, respectively; and
a memory including instructions that, when executed by a processor, cause the processor to;
measure a non-calibrated in-phase component of the received signals and a non-calibrated quadrature component of the received signals based on a first magnitude value and a first phase value of the received signals;
compute a calibrated phase value based on the non-calibrated in-phase component and the non-calibrated quadrature component; and
compute a calibrated magnitude value based on the calibrated phase value, the non-calibrated in-phase component, and the non-calibrated quadrature component.
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Accused Products
Abstract
A system for calibrating an electromagnetic navigation system is provided. The system includes an antenna assembly having a substrate, multiple pairs of transmit coils, multiple receive coils, multiple input terminals, and multiple output terminals. The substrate includes multiple layers, and each of the transmit coils is deposited on a respective one of the layers and each of the receive coils is deposited on another respective one of the layers. Each of the pairs of transmit coils corresponds to a respective one of the receive coils. Each of the transmit coils is coupled to a respective one of the input terminals, and each of the receive coils is coupled to a respective one of the output terminals.
927 Citations
20 Claims
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1. A system for calibrating an electromagnetic navigation system, comprising:
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an antenna assembly, including; a substrate including a plurality of layers; a plurality of pairs of transmit coils, each of the transmit coils being deposited on a respective one of the plurality of layers; a plurality of receive coils configured to receive signals transmitted from the plurality of pairs of transmit coils, each of the receive coils being deposited on a respective one of the plurality of layers, and each of the plurality of pairs of transmit coils corresponding to a respective one of the plurality of receive coils; a plurality of input terminals coupled to the plurality of pairs of transmit coils, respectively; and a plurality of output terminals coupled to the plurality of receive coils, respectively; and a memory including instructions that, when executed by a processor, cause the processor to; measure a non-calibrated in-phase component of the received signals and a non-calibrated quadrature component of the received signals based on a first magnitude value and a first phase value of the received signals; compute a calibrated phase value based on the non-calibrated in-phase component and the non-calibrated quadrature component; and compute a calibrated magnitude value based on the calibrated phase value, the non-calibrated in-phase component, and the non-calibrated quadrature component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for calibrating an electromagnetic navigation system, comprising:
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an antenna assembly, including; a substrate including a plurality of layers; a plurality of pairs of transmit coils, each of the transmit coils being deposited on a respective one of the plurality of layers; a plurality of pairs of receive coils configured to receive signals transmitted from the plurality of pairs of transmit coils, each of the receive coils being deposited on a respective one of the plurality of layers, and each of the plurality of pairs of transmit coils corresponding to a respective one of the plurality of pairs of receive coils; a plurality of input terminals coupled to the plurality of pairs of transmit coils, respectively; and a plurality of output terminals coupled to the plurality of pairs of receive coils, respectively; and a memory including instructions that, when executed by a processor, cause the processor to; measure a non-calibrated in-phase component of the received signals and a non-calibrated quadrature component of the received signals based on a first magnitude value and a first phase value of the received signals; compute a calibrated phase value based on the non-calibrated in-phase component and the non-calibrated quadrature component; and compute a calibrated magnitude value based on the calibrated in-phase component. - View Dependent Claims (19, 20)
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Specification