Multi-processor system using an optical communication with a different frequency band for each communication destination
CA 2216579 A1 · Owner: Wadasaki, Shuzo · Inventors: Wadasaki, Shuzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plurality of processors and at least one memory are optically connected each other through an optical fiber cable. Each of the plurality of processors and the at least one memory is assigned a different frequency band. Each of the plurality of processors has light emitting devices each corresponding to respective frequency bands of destinations. Each of the plurality of processors selects one of the light emitting devices. Each of the plurality of processors further has an optical filter passing through only optical signals of a frequency band that has been assigned to the processor. Each of the at least one memory also has a light emitting device and an optical filter the same as those …
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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 29, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 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.