Method, apparatus and system for characterizing sleep
CA 2499547 C · Owner: Akselrod, Solange · Inventors: Baharav, Armanda Lia; Shinar, Zvika; Akselrod, Solange
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of determining sleep stages from signals of electrical activity recorded of a chest of a sleeping subject the signals being measured over a , plurality of epochs. The method comprising: (a) extracting a series of cardiac R-R intervals , from the signals and obtaining a time-frequency decomposition from the series of , cardiac R-R intervals; (b) using the time-frequency decomposition to determine at , least one Slow-Wave-Sleep (SWS) period and at least one Non-SWS (NSWS) period; (c) from the at least one NSWS period, determining at least one sleep-onset (SO) , period and a plurality of non-sleep periods; (d) extracting a plurality of electromyogram (EMG) parameters from a …
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 September 18, 2003 and granted May 27, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2025.
- 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.