Emphasis of short-duration transient speech features
CA 2385233 A1 · Owner: The University Of Melbourne · Inventors: Vandali, Andrew E; Clark, Graeme M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sound processor including a microphone (1) a pre-amplifier (2), a bank of N , parallel filters (3) means for detecting short-duration transitions in the envelope signal of each filter channel and means for applying gain to the , outputs of these filter channels in which the gain is related to a function of the second-order derivative of the slow-varying envelope signal in each filter channel, to assist in perception of low-intensity short-duration speech features in said 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 October 25, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 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.