Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Recording medium, playback device, integrated circuit
Noise suppression in speech signals
Electric train drive control device
Display screen with an animated graphical user interface
Lithographic apparatus and device manufacturing method
Multi-state DC-DC converter having undirectional switches
Multi-carrier operation for wireless systems
  Randomly Featured Patents
Method of manufacturing a semiconductor device
Column electrode drive for gas discharge display device
Computerized game board
Iterative multi-user detection
Fungicidal and plant growth-regulating 1-azolyl-2-oximinobutane and use
Use of crown compounds (cyclic polyethers) in litho developers to improve halftone dot quality and gradation
Dog
Dietary supplementation with essential metal picolinates
Crystalline forms of docetaxel and process for preparation thereof
Magnetic polishing fluids