Apparatus for controlling the conversion gain of a down converter
CA 2188080 C · Owner: Muterspaugh, Max Ward · Inventors: Muterspaugh, Max Ward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A down converter, such as a low noise block (LNB) converter of the outdoor unit (100) of a terrestrial microwave or satellite receiving system includes apparatus for automatically controlling the conversion gain of the down converter. In one embodiment the automatic gain control apparatus including a gain controllable RF stage (106) and a gain control signal generator (146) for generating a gain control signal in response to the output signal of the down converter are both included within the outdoor unit (100). In another embodiment the gain controllable RF stage (106) is included in the outdoor unit (200) but the gain control signal generator (220) is included in the indoor unit (202) of …
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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 October 17, 1996 and granted March 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2018.
- 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.