Image sensor
CA 2003684 A1 · Owner: Hans Spies; Martin Spies · Inventors: Woehrl, Alfons; Spies, Hans; Spies, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An image sensor on a semiconductor basis especially a, CCD-structure has a linear or areal two-dimensional array with a parallel or serial read-out. An avalanche diode is arranged on one side of the semiconductor. The charge carriers coming from the avalanche diode are transmitted to the CCD-structure through an electrode for an electrical control of the sensor, for example, as an optical shutter. 2394/ar
Read the whole patent
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 November 23, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 23, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2011.
- 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.