2009
DOI: 10.2174/1874764710902010032
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A Review on Recent Patents in Digital Processing for Cardiac Electric Signals (II): Advanced Systems and Applications

Abstract: Digital signal processing algorithms for cardiac recordings have been paid much attention in recently disclosed patents. In this second part of our review of the state-of-art patents, systems for sudden cardiac death prediction, as well as for apnea analysis, are summarized. Advanced digital signal processing algorithms for cardiac electric signals are specifically reviewed, including independent component decompositions, and nonlinear methods (chaos, fractals, and entropies). Finally, systems aiming to solve … Show more

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Cited by 4 publications
(4 citation statements)
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“…These methods aim to extract relevant information for either HR or ECG to OSA periods. They were proposed by scientists with expertise in both algorithm design and wide ranging medical knowledge on either ECG or HR [51]. For example, Kalman filter can be used to measure the predictability of the ECG signal.…”
Section: Feature Extraction and Selectionmentioning
confidence: 99%
“…These methods aim to extract relevant information for either HR or ECG to OSA periods. They were proposed by scientists with expertise in both algorithm design and wide ranging medical knowledge on either ECG or HR [51]. For example, Kalman filter can be used to measure the predictability of the ECG signal.…”
Section: Feature Extraction and Selectionmentioning
confidence: 99%
“…Cross-covariance of signals has been widely used in other signal processing applications, such as spectral estimation, antenna beamforming, equalization or pattern recognition, among many others. Also, it has been successfully used in ECG signal processing [ 24 , 25 ], including data compression and filtering [ 26 ], ST-T segment analysis [ 27 ], and ventricular repolarization analysis [ 28 ].…”
Section: Introductionmentioning
confidence: 99%
“…In this paper and in the companion one [4], we make a review on recent patents related to the application of digital signal processing techniques to cardiac electric signals. In this setting, it is worth to look not only to systems which are currently used in clinical practice, but also to disclosed systems which could be used in the near future.…”
Section: Introductionmentioning
confidence: 99%
“…This first paper includes patents that are more closely related to basic digital signal processing algorithms for feature extraction in cardiac monitoring systems, as well as systems disclosed for applications related with cardiac arrhythmias. The companion paper [4] pays attention to the widely explored field of sudden cardiac death prediction, to the most advanced signal processing algorithm disclosed in this setting, and to the systems that have been proposed aiming to solve the inverse problem in electrocardiography.…”
Section: Introductionmentioning
confidence: 99%