Device for automatically correcting the depolarizing effect of electromagnetic waves
CA 1069589 A · Owner: Societa, Italiana Telecomunicazioni Siemens S.P.A. · Inventors: Cavalieri D'Oro, Enzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for automatically correcting the depolarizing effect of circularly polarized electromagnetic waves in transmission systems of the type employing two distinct receiving and transmitting frequency bands, each of which has a double crossed circular polarization and wherein two "beacon" signals of distinct frequencies are allocated to the receiving band. A separating unit separates the signals of the two bands and a correcting unit corrects the interference effects due to depolarization of the receiving band signal. A conversionseparation unit transforms the two circular cross-polarizations of the receiving band signals into two linear cross-polarizations according to two orthogonal …
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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
- Granted January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.