The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 1996
Filed:
Jun. 15, 1993
Tanya Lypchuk, San Diego, CA (US);
Biomagnetic Technologies, Inc., San Diego, CA (US);
Abstract
An apparatus and process for making biomagnetic measurements of a biological organism permits the internal sources of the activity to be identified. An array of dipole sources is identified by providing a plurality of biomagnetic sensors disposed at locations external to the biological organism, measuring a measured biomagnetic response at each of the sensors, and amplifying and filtering the measured biomagnetic response. A solution of dipole sources within the biological organism is determined by forward calculating a computed biomagnetic response at each of the sensors resulting from the biomagnetic activity of a plurality of dipole sources, each of which dipole sources contributes a normalized total signal strength at the sensors, and solving for the strengths of each of the dipole sources by a minimum norm estimation procedure. Convergence on the solution is aided by iteratively removing from the determination those apparent sources that contribute only a small portion of the signal strength, and then resolving the resulting relationship.