Patent · US Active

Magnetic resonance imaging system and method using frequency calibration based on a signal from a geo-satellite positioning system

US12222411B2 · kind B2 · utility

0Cited by
1References
20Claims
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Key dates

Filing dateJun 22, 2021
Grant dateFeb 11, 2025
Priority date
Expiry dateSep 24, 2041

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R33/583
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method of setting an RF operating frequency of an MRI system (1) uses a first reference frequency signal, obtained from a geo-satellite positioning system, as a stable long term frequency reference. A second frequency source (24) is calibrated using the first frequency reference signal and the second frequency reference source (24) is then used as the master clock for the MRI system (1), for setting the RF operating frequency.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.