Resources Contact Us Home
Method of processing and storing mass spectrometry data

Image Number 5 for United States Patent #7657387.

A data compression technique is disclosed for Fourier Transform Mass Spectrometry (FTMS). A statistical analysis is applied to the data in the frequency domain since most of this data is a result of randomly distributed electronic noise. A fit of the whole frequency dataset to the distribution is made to determine preliminary moments of the distribution. The data in the tail of that distribution (which is mainly the peak data) is then removed and the remaining data points are re-fitted to the distribution, to identify the moments of distribution of that remaining noise data. A noise threshold for the mass spectrum is then applied using the calculated moments. The data above the threshold is kept. The whole spectrum can be reconstituted by storing the moments of distribution along with the peak data and then regenerating the noise from those moments and adding it to the peak data.

  Recently Added Patents
Nitride semiconductor laser device
Integrated circuit testing with power collapsed
Optical multiplexer/demultiplexer
System and method for operating an electric power converter
Extensible, filtered lists for mobile device user interface
Baseball player stationery tab
Imidazolidine-2,4-dione derivatives, and use thereof as a cancer drug
  Randomly Featured Patents
Bottle with handle
Deflector assembly for motorcycle
Pyridinylpiperazinyl steroids
Storage router and method for providing virtual local storage
Image forming apparatus
Pliers including removable jaws
Semiconductor memory devices having controllable input/output bit architectures
Method and machine for excavating drifts, tunnels, stopes, caverns or the like
Bandpass sampling schemes for observation receiver for use in PA DPD system for concurrent multi-band signals
Systems and methods for treating obesity and type 2 diabetes