Method of and device for scanning objects by ultrasound echography
CA 1232961 A · Owner: N.V.Philips'Gloeilampenfabrieken · Inventors: Cardoso, Jean-Francois; Hottier, Francois; Fink, Mathias
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHF 83.589 12 5.5.1984, ABSTRACT:, Method of and device for scanning objects by ultrasound echography. A method for the scanning of non-linearly dispersive objects whereby changes of the energy spectrum of echographic signals can be quantitatively related to parameters of the objects examined, that is to say the ultrasonic attenuation factor .beta. and the exponent r which characterizes the relationship between the nonlinear variation of the attenuation and the frequency. To this end the signals received are split into a, number of (n) substantially equally wide consecutive, frequency bands which together cover approximately all frequencies of the signals received. The envelope of the …
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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 February 16, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2005.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.