Advanced instrument landing system
CA 1296794 C · Owner: Sundstrand Data Control, Inc. · Inventors: Chisholm, John P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract A system for landing an aircraft is described using, a ground installation and an airborne installation which are synchronized together using GPS system time. Specifically the ground installation includes a ground transmitter (32) which radiates the sequence of signals (A,B,C,D) which provide precision guidance information to the aircraft, an aircraft installation which includes a radio receiver (8) and a processor (15) to receive a process the transmitted guidance signals and to provide indications (18,20) to aid the pilot in landing the aircraft, a GPS receiver in the air (68) and on the ground (60) for producing signals representative of GPS system time, and a channel selector …
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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 March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
- 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.