HEART RATE EXTRACTION USING NEURAL WAVELET ADAPTIVE GAIN CONTROL AND NEURAL PATTERN PROCESSING
First Claim
1. A heart rate measurement device comprising:
- a wavelet;
an instrumentation amplifier;
a set of two electrodes configured to be coupled to a subject'"'"'s skin, and in electrical communication with and providing a set of signals to said instrumentation amplifier;
an adaptive gain control (AGC) algorithm;
an analog or digital filter in a feedback path of said instrumentation amplifier for at least one of removal of saturating signals and unwanted waveform components responsive to said AGC algorithm; and
wherein said AGC algorithm utilizes said wavelet and responds to the correlation of said wavelet to a measured signal obtained from said set of signals by said instrumentation amplifier.
0 Assignments
0 Petitions
Accused Products
Abstract
An improved heart rate monitor is provided that can detect and distinguish a heartbeat from an otherwise contaminated system with noise components potentially larger than the signal of interest. Embodiments of the inventive monitor have an amplification system that eliminates large noise components so as not to saturate the system during detection of a desired low amplitude signal. In embodiments the elimination of noise components is accomplished through wavelet decomposition, and the removal of undesired components including interference components during adaptive gain control (AGC), in addition to hunting algorithms which minimize the error with techniques such as neural network least mean squares type back propagation algorithms.
11 Citations
20 Claims
-
1. A heart rate measurement device comprising:
-
a wavelet; an instrumentation amplifier; a set of two electrodes configured to be coupled to a subject'"'"'s skin, and in electrical communication with and providing a set of signals to said instrumentation amplifier; an adaptive gain control (AGC) algorithm; an analog or digital filter in a feedback path of said instrumentation amplifier for at least one of removal of saturating signals and unwanted waveform components responsive to said AGC algorithm; and wherein said AGC algorithm utilizes said wavelet and responds to the correlation of said wavelet to a measured signal obtained from said set of signals by said instrumentation amplifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method of heart waveform extraction comprising:
-
providing wavelet responsive to PQRST components of said heart waveform; providing a contaminated signal containing said heart waveform as well non-ideal components; providing an at least three dimensional image created by deconstructing said contaminated signal utilizing said wavelet; and providing a pattern recognition neural network trained to recognize heart beat components from an image created from similar wavelet deconstructed signals including noise components, wherein said at least three dimensional image is applied to said neural network trained to produce an output vector responsive to recognized heart beats.
-
Specification