Digital signal receiver for mwd telemetry systems
CA 2325115 A1 · Owner: Reed, Christopher P. · Inventors: Reed, Christopher P.; Hutin, Remi; Tennent, Robert W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A receiver for use with a mud-pulse telemetry system is disclosed. The receiver, includes one or more instruments for detecting and generating signals in response to a, telemetry wave and a noise wave traveling opposite to the telemetry wave. A filter, receives and combines the signals generated by the instruments to produce an output, signal in which the noise wave signal is filtered out. An equalizer reduces distortion of, the telemetry wave signal.
Read the whole patent
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 November 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2022.
- 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.