Method and apparatus for comparing waveform shapes of time-varying signals
CA 1306065 C · Owner: Siemens Aktiengesellschaft · Inventors: Armington, Robert-M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
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 …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 2009.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.