Physiological signals processing system

Details Physiological signals processing system Physiological signals processing system

1984-05-23

1987-01-06

Kamm, William E.

Surgery

Truss

Pad

364415, A61B 504

Patent

active

046338845

ABSTRACT:
In a physiological signals processing system including (a) a A/D conversion means for converting physiological signals into digital signals and (b) a data compression means for reducing the number of data points sampled from said digital signals, the improvement which comprises: said data compression means being provided with a first sampling means for sampling a pair of combined peak points from said digital signals by applying the second order differential conversion to said digital signals, and a second sampling means for sampling level points by the level detection of said digital signals in the portion where adjacent peak points are not combined.

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Ruttiman et al. "Compression of ECG by Prediction or Interpolation and Entropy Encoding" IEEE Trans. Biomed. Eng., vol. BME-26, No. 11, Nov. 1979, pp. 613-623.
Schmitt et al. "ECG Data Compression for the Emergency Setting" J. Clin. Eng., Jan.-Mar. 1979, vol. 4, No. 1, pp. 49-53.
Ahmed et al. "Electrocardiographic Data Compression Via Orthogonal Transforms" IEEE Trans. Biomed. Eng., vol. BME-22, No. 6, Nov. 1975, pp. 484-487.
Cox et al. "AZTEC, a Preprocessing Program for Real-Time ECG Rhythm Analysis" IEEE Trans. Biomed. Eng., Apr. 1968, pp. 128-129.

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