Boots – shoes – and leggings
Patent
1992-01-21
1994-11-15
Envall, Jr., Roy N.
Boots, shoes, and leggings
36441301, 128696, 128700, 128703, 128704, 128705, 128706, 128702, 367901, 382 6, G06F 1542, A61B 50452
Patent
active
053654285
ABSTRACT:
A device is provided for reducing the number of ECG data sample points presented to a video display system to avoid overwhelming the video display screen with a number of ECG sample points and to present several seconds of data on the screen at the same time. The device ensures that the maximum and minimum values of the original ECG signal are displayed. A collection of consecutive points is broken into sub-groups which are each processed to produce representative amplitude values for each sub-group which representative values are then displayed on the display screen.
In the preferred embodiment, the device includes a microprocessor with electronic memory which calculates a representative amplitude value for each sub-group. The representative amplitude value is chosen depending on whether the sub-group contains a local maximum or a minimum in the values of consecutively sampled points or whether the data points of the sub-group are part of a curve leading to a local maximum or minimum. If the local minimum or maximum value of the sub-group appear between the end points of the sub-group, the maximum or minimum value of the sub-group is passed to the output depending on whether the curve is convex or concave shaped respectively.
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dePinto Victor M.
Kinghorn Curtis D.
Beck Andrew J.
Envall Jr. Roy N.
Kinghorn Curtis D.
Quinton Instrument Company
Smith Montgomery W.
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