Local autoadaptive optical sensor
CA 2238534 C · Owner: Markus Bohm · Inventors: Bohm, Markus; Lule, Tarek
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The dynamics of the usual image sensors are not sufficient to process the brightness contrasts occurring in many situations. Previously disclosed methods of increasing the dynamics have considerable disadvantages for practical application. Image sensors according to the new method should combine high dynamics with simple applicability. To avoid the overexposure and underexposure of pixels which occurs with high image contrasts, each pixel contains a local autoadaptive control. With the help of this control each pixel, automatically ends its integration period as soon as it has integrated enough photoelectric current. An analog signal represents the length of the integration period selected …
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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 September 27, 1997 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 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.