US 10,327,664 B2 · System, method and apparatus for detecting an evoked response signal

Abstract

A method for detection of an evoked response signal in noise including: generating a plurality of stimuli; receiving a noisy signal related to an evoked response to the plurality of stimuli; divide the noisy signal into a plurality of responses to the plurality of stimuli; estimate a statistic matrix for the plurality of responses; shrink the statistic matrix; calculate weights based on an inverse of the shrunk statistic matrix; apply weights to the plurality of responses to construct a final response; and output the final response. An apparatus having an input device configured to receive data related to a plurality of stimuli; and a processor configured to: receive a noisy signal and divide the noisy signal into a plurality of responses; estimate a statistic matrix; shrink the statistic matrix; calculate weights based on an inverse of the shrunk statistic matrix; and apply weights to the plurality of responses to construct a final response.

Claims26

Dependent claims

A method for detection of an evoked response signal in noise, the method comprising:

generating a plurality of stimuli;
receiving a noisy signal related to an evoked response to the plurality of stimuli;
dividing the noisy signal into a plurality of responses to the plurality of stimuli;
calculating weights for the plurality of responses;
identifying sets of responses, and for each set:
combining the responses as a revised response;
calculating a new weight for the revised response;
and
removing the responses from the plurality of responses;
constructing a final response by weight averaging the revised responses and responses not identified in a set, the final response representing the evoked response or indicative of whether or not an evoked response has been detected;
and
outputting the final response.

9 more elements

An apparatus for detection of an evoked response signal in noise, the apparatus comprising:

an input device configured to receive data related to a plurality of stimuli and a noisy signal related to the evoked response signal to the plurality of stimuli;
and
a processor configured to:
receive the noisy signal from the input device and divide the noisy signal into a plurality of responses to the plurality of stimuli;
calculate weights for the plurality of responses;
identify set of responses, and for each set:
combine the responses as a revised response;
calculate a new weight for the revised response;
and
remove the responses from the plurality of responses;
construct a final response by weight averaging the revised responses and responses not identified in a set, the final response representing the evoked response or indicative of whether or not an evoked response has been detected;
and
outputting the final response.

10 more elements

A system for detection of an evoked response signal in noise, the system comprising:

a stimulus generator configured to generate a plurality of stimuli;
a plurality of sensors configured to receive a noisy signal including an evoked response signal to the plurality of stimuli;
an input device configured to receive data related to the plurality of stimuli and the noisy signal;
a processor configured to:
receive the noisy signal from the input device and divide the noisy signal into a plurality of responses to the plurality of stimuli;
calculate weights for the plurality of responses;
identify set of responses, and for each set:
combine the responses as a revised response;
calculate a new weight for the revised response;
and
remove the responses from the plurality of responses;
construct a final response by weight averaging the revised responses and responses not identified in a set, the final response representing the evoked response or indicative of whether or not an evoked response has been detected;
and
an output device to output the final response received from the processor.

11 more elements

Dependencies are inferred from the claim text.

System, method and apparatus for detecting an evoked response signal

Life of this patent

System, method and apparatus for detecting an evoked response signal

Life of this patent

Abstract

Claims26