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
Mesa-shaped piezoelectric resonator element
Wireless communication system and wireless communication method
Translucent internal graphics enhancement
Parameter decoding apparatus and parameter decoding method
Key management policies for cryptographic keys
Amnion-derived cells, methods of making and uses thereof
  Randomly Featured Patents
Electrodes for metal/air batteries and bipolar metal/air batteries incorporating the same
Drinking cup apparatus
Machining center
Method for controlling a data transmission pre-emphasis unit and a data transmission system employing the method
Fiber to chip coupler
Electrophotographic photoreceptor and image formation device provided with the same
Child ridable toy vehicle with remote control
Method and apparatus for remotely provisioning software-based security coprocessors
Cross-platform compatibility framework for computer applications