The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 1994
Filed:
Jan. 21, 1992
Victor M dePinto, Kirkland, WA (US);
Curtis D Kinghorn, Ferguson, MO (US);
Quinton Instrument Company, Seattle, WA (US);
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.