Device for suppressing stray direct component hops for zero intermediate frequency type radio receivers, and the corresponding suppression process
CA 2230087 A1 · Owner: Alcatel Alsthom Compagnie Generale D'Electricite · Inventors: Vogel, Helene; Galligo, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Device for suppressing stray direct component hops affecting the reception of a radio frequency signal emitted by so-called burst signal elements notably for zero intermediate frequency type receivers and the corresponding suppression process. The device comprises means (10) of standardizing the power of successive bursts relative to the obtained useful signal power means (8) of determining the value and position characteristics of the direct component hop for each burst received each hop being assumed to be at least approximately positioned in time in relation to the burst it is breaking down as the following hop will be in relation to the following burst corrective means (9) of removing …
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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 March 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2020.
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Timeline
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Sources & verification
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.