Method and apparatus for comparing waveform shapes of...

Details Method and apparatus for comparing waveform shapes of... Method and apparatus for comparing waveform shapes of...

G - Physics

06

F

354/146

G06F 7/02 (2006.01) A61B 5/04 (2006.01) A61B 5/0452 (2006.01) G01R 29/00 (2006.01)

Patent

CA 1306065

ABSTRACT OF THE DISCLOSURE A method and apparatus for comparing waveshape portions of at least one time-varying signal by first forming initial templates of digital signal samples representative of the amplitude of successive time-spaced samples of portions of the time-varying signal. Next, forming reduced templates having a number of digital signal elements which is less than the number of samples in corresponding ones of the initial templates, each element of the reduced template comprising a combination of at least: two samples from its corresponding initial template. And then processing corresponding elements of at least two of the reduced templates for deriving a signal representative of the degree of similarity of the respective portions of the time-varying signal represented by at least two reduced templates.

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