Kalman filter approach to processing electromagnetic data
CA 2566867 C · Owner: Hornbostel, Scott · Inventors: Hornbostel, Scott; Lu, Xinyou
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method for tracking a sinusoidal electromagnetic signals detected in noisy seismic data using a Kalman filter or other tracking algorithm 34 used to track signal the amplitude variations and detect the signal phase changes over time. The method is used for controlled seismic source electromagnetic surveying where longer seismic source-receiver offsets can cause the seismic source signal to decay significantly and be difficult to retrieve from magnetotelluric or other electromagnetic background 31.
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 April 26, 2005 and granted May 27, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.