Abstract: Apparatuses and methods for testing a system having a transient response that is longer than the intervals between stimulations, using a sequence of stimuli containing a small jitter. The timing sequence (called a q-sequence) is constrained by time-domain and frequency-domain rules. The system-response can be recovered from noise, despite response superposition, using deconvolution with a recovery sequence. The acronym QSD means “q-sequence deconvolution”. The invention is especially applicable to signal processing of evoked-responses, including those used for disease screening.

Abstract: Apparatus and method for testing a system having a transient response that is longer than the intervals between stimulations, using a sequence of stimuli containing a small jitter. The timing sequence (called a q-sequence) is constrained by time-domain and frequency-domain rules. The system response can be recovered from noise, despite response superposition, using deconvolution with a recovery sequence. The acronym QSD means “q-sequence deconvolution”. The invention is especially applicable to signal processing of evoked-responses, including those used for disease screening.

Abstract: Apparatuses and methods for testing a system having a transient response that is longer than the intervals between stimulations, using a sequence of stimuli containing a small jitter. The timing sequence (called a q-sequence) is constrained by time-domain and frequency-domain rules. The system-response can be recovered from noise, despite response superposition, using deconvolution with a recovery sequence. The acronym QSD means “q-sequence deconvolution”. The invention is especially applicable to signal processing of evoked-responses, including those used for disease screening.

Abstract: Apparatus and method for testing a system having a transient response that is longer than the intervals between stimulations, using a sequence of stimuli containing a small jitter. The timing sequence (called a q-sequence) is constrained by time-domain and frequency-domain rules. The system response can be recovered from noise, despite response superposition, using deconvolution with a recovery sequence. The acronym QSD means “q-sequence deconvolution”. The invention is especially applicable to signal processing of evoked-responses, including those used for disease screening.

Abstract: The invention is an improved machine and method for converting recordings of electric potentials into nervous-system-generator parameters that can be used by clinicians and researchers to evaluate generators of central or peripheral nervous system activity. The machine and method utilize as inputs physiological recordings made at sites remote from the generator, data on shapes of boundaries, locations of recording points and electrical conductivity of volumes to be analyzed. The invention teaches how to compute the weight function values, corresponding to electric potentials and/or electric fields across a pair of electrodes due to unit source current by the use of the Lead Field Analysis in a boundary element method.

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.