Surgery – Truss – Pad
Patent
1993-07-30
1994-10-11
Kamm, William E.
Surgery
Truss
Pad
36441306, 36441305, 128710, A61B 500
Patent
active
053538013
ABSTRACT:
For compressing an electrical signal, such as a cardiac signal, converted by delta modulation into a binary operational sign signal, four data words are generated in the sequence of the appearance of four possible statuses, the four data words respectively defining the status and its duration. The statuses are defined in that the signal has a positive, minimum steepness during a minimum duration in a first status and has a negative minimum steepness in a second status. For a flatter signal curve, third and fourth statuses are respectively defined in which the signal rises or drops by a defined amount during the status duration.
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patent: 5014284 (1991-05-01), Langer et al.
patent: 5058599 (1991-10-01), Andersen
"Reduction of ECG-Data Using a Microcomputer," Kraft et al. Biomedizinische Technik, vol. 25, No. 1/2 (Jan.-Feb. 1980), pp. 2-6.
"Biosignal Recognition Using Serial Data from a Delta Modulator," Heimer et al., IEEE Engineering in Medicine & Biology Society, 10th Annual Int. Conf., pp. 149-150.
"An Adaptive Real-Time ECG Compression Algorithm with Variable Threshold," Furth et al., IEEE Trans. on Biomed. Eng., vol. 35, No. 6, No. 6, Jun. 1988, pp. 489-494.
Kamm William E.
Schaetzle Kennedy J.
Siemens Aktiengesellschaft
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