Optical parallel-serial converter and optical serial-parallel converter
CA 2093986 C · Owner: Bottle, Dietrich · Inventors: Bottle, Dietrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The high transmission capacity of an optical transmission path (about 200,000 km Mbit/s) is used, among others to couple several data sources and , data sinks to an optical waveguide. The task of the invention is to ensure the coupling, in and out of several data streams to or from any path section of a (predetermined), optical transmission path. This task is fulfilled by a device for the parallelserial, conversion, and a device for the serial-parallel conversion of the data streams to, the optical transmission path. The coupling in and out of the individual data streams is performed by optical modulators or optical expanders which are, incorporated into the optical transmission path. …
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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 April 14, 1993 and granted October 3, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2015.
- 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.