Method and device for processing a multi-channel measurement...

Electricity: measuring and testing – Magnetic – Magnetometers

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C324S244000

Reexamination Certificate

active

07463024

ABSTRACT:
A method and device by means of which an irrotational, sourceless vector field can be expressed by a number of physically reasonable basis vectors. In the method and device for processing a multi-channel measurement of magnetic fields of the present invention, measured signals can be unambiguously divided into signals of the irrotational, sourceless vector field that are caused by an interesting object or external interferences, as well as into a signal caused by the nonideality of the measuring device. The invention is based on the combining of two very fundamental mathematical regularities and applying in the processing of signal vectors of a multi-channel measuring device that measures an irrotational, sourceless vector field. The invention is based on the Maxwell's equations of an irrotational, sourceless vector field, as well as on the convergence characteristics of series developments.

REFERENCES:
patent: 4492923 (1985-01-01), Byram
patent: 4977896 (1990-12-01), Robinson et al.
patent: 5020538 (1991-06-01), Morgan et al.
patent: 5136242 (1992-08-01), Abraham-Fuchs
patent: 5644229 (1997-07-01), Dössel et al.
patent: 6538436 (2003-03-01), Simola et al.
patent: 0 560 621 (1993-09-01), None
patent: 0 560 621 (1993-09-01), None
patent: 925461 (1994-05-01), None
G.T. Gullberg et al., “Backprojection filtering algorithms for reconstruction of vector and second order tensor fields”, Nuclear Science Symposium Conference Record, 2000 IEEE, Published Oct. 15-20, 2000.
“Magnetoencephalography—theory, instruction, and applications to noninvasive studies of the working human brain”, Mati Hämäläinen et al. Reviews of Modern Physics, vol. 65, No. 2, 1993.
“Interpretation of Neuromagnetic Measurements: Modeling and Statistical Considerations”, Matti Hämäläinen, 1987.
“Comparability of Measurement Results Obtained with Multi-SQUID-Systems of Different Sensor Configurations”, M Burghoff et al. IEEE Transactions on Applied Superconductivity, vol. 7, No. 2, 1997.
“Signal-space projection method for separating MEG or EEG into components”, M.A. Uusitalo and R.J. Ilmoniemi, Medical & Biological Engineering & Computing, vol. 35, pp. 135-140, 1997.
“Detecting and Correcting for Head Movements in Neuromagnetic Measurements”, K. Uutela et al, Neurolmage, vol. 14, pp. 1424-1431, 2001.
“Transformation of Multichannel Magnetocardiographic Signals to Standard Grid Form”, Jussi Numminen et al. IEEE Transactions on Biomedical Engineering, vol. 42, No. 1, 1995.
Sabaka et al., A comprehensive model of the quiet-time, near-Earth magnetic field: phase 3; Geophys. J. Int. (2002) 151, 32-68.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and device for processing a multi-channel measurement... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for processing a multi-channel measurement..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for processing a multi-channel measurement... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4041383

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.