Satellite apparatus with omnidirectional and manually steerable directional antenna
CA 2289646 A1 · Owner: Inmarsat Ltd. · Inventors: Broughton, John William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile satellite communications terminal (2) comprises a portable computer (68), an interface card (8) containing intermediate frequency (IF) conversion circuitry (28, 52), and an antenna assembly (10) including RF conversion circuitry (34, 50) and an antenna (44). The interface card (8) is connected to the antenna assembly (10) by a detachable cable (32) which carries IF , signals. This arrangement reduces RF power losses and interference. The antenna (44) is manually steerable towards a geostationary or quasigeostationary satellite (12). A navigation signal antenna (56) is mounted on the antenna assembly (10) and is steerable independently of the antenna (44) so as to be …
Read the whole patent
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 May 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2020.
- 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.