Test apparatus in a radar system
CA 1261037 A · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Forrest, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A test apparatus is disclosed for the reception channels, e.g. in a doppler radar system with electrically controlled aerial elements. Behind the aerial elements are arranged optical detectors for receiving an optical signal from the system transmitter and converting it to an RF signal. The latter is sent to the transmitter-receiver modules of the system and further to a detection-measurement unit. The measurement unit evaluates the different modules in relation to amplitude and phase of the test signal, and sends correction signals to the modules in response to the evaluation. The apparatus can also be utilized for testing the system transmission channels.
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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.