Position sensing system for a moving object
CA 1268525 C · Owner: Aktiebolaget Electrolux · Inventors: Ohman, Carl G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A c T, In an electrooptic position sensing system for an object (11) moving in a plane at least one light source (10) is fixedly disposed such that the radiationfield of the light source covers the area within which the object (11) is intended to move. The object, for instance being a mobile robot 19 provided, with a matrix (18) of light-sensitive elements intended to receive radiation from the light source (10). A lens arrangement (12) focuses the incident radiation to a light spot on the matrix (18) which then emits corresponding electric signals. Means (20,21) are arranged to sense the matrix (18) to determine the position of the light spot from the element which most unambiguously …
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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 May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
- 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.