Optical intersatellite communications system
CA 2314257 A1 · Owner: Contraves Space Ag · Inventors: Hunziker, Stephan; Pribil, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The optical intersatellite communications system comprises a transmission element with a TX laser on the transmitter end and an optical modulator for transmitting a, modulated laser beam (3) wherein this transmitter element respectively comprises one, analog and one digital device which can be selectively connected via a changeover, switch on the transmitter end to the optical modulator. The optical intersatellite, communications system also comprises a receiving element which has an optical RX, receiver (21) on the receiver end and a local oscillator (22) wherein on the , output side of, the RX receiver (21) a low pass filter unit (23) has been connected to which , an analog or, 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 July 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2022.
- 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.