Ultrasonic detection system for safety of vehicle passengers
CA 2201080 C · Owner: Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of Industry · Inventors: Harron, Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a new and useful system and method of ultrasonic detection for use in the monitoring of the danger zone of a vehicle when stationary. The, system comprises one or more sensors circuit means for analog to digital , signal conversion of acoustic echoes from the sensors and a microsequencer programmed to, control the sensors. The microsequencer receives a sequence of digitized acoustic echoes, from the sensors, generates from the digitized acoustic echoes one initial reference data, set representing a pattern of distances establishes and stores the initial , reference data set defining what is present in the danger zone at the time said vehicle becomes …
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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
- Filed March 26, 1997 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.