Passive type moving object detection system
CA 2123296 C · Owner: Ohkawa, Shingo · Inventors: Amano, Hiroyuki; Sugimoto, Tadashi; Iwasawa, Masashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A passive type moving object detection system which include an infrared detector, infrared sensors mounted on the infrared detector a, detection field including a column of detection regions for monitoring a human intruder and a row of detection regions for detecting a non-human intruder, wherein the column of detection regions have a height covering a human height, an optical system located between the infrared detector and the detection field, the infrared sensors having infrared accepting areas comprising a first section and a second section wherein the first section optically corresponds to the column of detection region and the second section optically corresponds to the row of …
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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 May 10, 1994 and granted April 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2016.
- 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
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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.