Angle measurement compensation technique for amplitude comparison monopulse receiver
CA 2049896 C · Owner: Hughes Aircraft Company · Inventors: Woolley, Richard L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compensated amplitude comparison monopulse receiver (10) having an angular measurement capability substantially unaffected by mismatches in channel transient response and target range tracking inaccuracy is disclosed herein. The inventive monopulse receiver (10) includes a first receiver channel (24) for impressing a first output voltage S1 on a first output port (28) thereof in response to excitation by a sum signal. A second receiver channel (26) impresses a second output voltage S2 on a second output port (30) thereof in response to excitation by the sum and a difference signal. In a calibration mode a calibration, source (22) provides a series of calibration pulses to the first 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
- Filed August 26, 1991 and granted December 27, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2013.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.