Method of and apparatus for setting direction of a parabolic antenna relative to a communicating satellite
CA 1231438 A · Owner: Nagano Nihon Musen Kabushiki Kaisha · Inventors: Inoue, Toshiaki; Nakamura, Akihiro; Maruyama, Makoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of and apparatus for setting the direction of a parabolic antenna towards a broadcasting satellite, suitable for use in the case where a plurality of satellites are available for service. The elevation angle and the azimuth angle of the antenna with respect to each satellite are minutely adjusted while the state of receiving of waves from the satellite is watched, and the values of the elevation and azimuth angles for each satellite are stored in a memory section when the optimum state of receiving is attained. When the user selects one of the satellites through a selecting section, a control section operates to activate a driving section to swing the antenna vertically and …
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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 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2005.
- 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
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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.