Patent · US Active

Spectral filtering of k-clock signal in OCT system and method

US9310182B2 · kind B2 · utility

19Cited by
4References
20Claims
0Family size

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Key dates

Filing dateDec 30, 2013
Grant dateApr 12, 2016
Priority date—
Expiry dateOct 3, 2034

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B9/02091
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A system and method for spectral filtering of a k-clock signal in a swept-source Optical Coherence Tomography (“OCT”) system to remove artifacts in the k-clock signal. The system synchronizes sampling of the k-clock and interference signals generated from scanning a sample. Using a filtered k-clock signal, the system resamples an interference dataset of the interference signals. The system then performs Fourier transform based processing upon the resampled interference dataset to yield axial depth images of the sample. The system preferably performs the reconstruction, resampling, and associated Fourier-Domain signal processing in software via a Field Programmable Gate Array (“FPGA”) of a rendering system.

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