Inventors:
Don Lee Jewett - Mill Valley CA
Zhi Zhang - San Francisco CA
Assignee:
Abratech Corporation - Sausalito CA
International Classification:
A61B 505
Abstract:
The present invention encompasses apparatus and methods for determining variations in estimated signal-generator parameters derived from signals created by signal-generators, such as signal-generators within organs of the body, such as brain, head, spinal cord, and muscles. The present invention is particularly useful when more than one signal generator is non-zero in part or all of the time-interval analyzed. The parameters of a signal-generator that may be of interest include, but are not limited to, magnitude, location, and/or orientation, over single or multiple points in time.