Optical signal transmission
CA 2461541 A1 · Owner: Nesset, Derek · Inventors: Harper, Paul; Nesset, Derek; Charbonnier, Benoit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical signal transmission apparatus for transmitting a plurality of data signals (data-1 to data-n) comprises: a plurality of input means (1) for receiving a respective one of the data signals (data-1) and delivering the respective data signal with a controlled phase and at a controlled data rate; optical carrier generation means (4) for generating a plurality of optical carrier signals having different wavelengths (.lambda.1 to .lambda.2); a plurality of first modulation means (3) each being for modulating a respective one of the optical carriers with a respective data signal to provide a firstmodulated optical carrier signal; and an optical signal-routing device (15) having a …
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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 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2024.
- 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.