Apparatus and method of enhancing audio signals
CA 2203159 A1 · Owner: Garcia, Arturo J. · Inventors: Garcia, Arturo J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention enhances an electronic audio signal by adding harmonics to the electronic audio signal. The present invention includes an input stage (12) and an output stage (22), with the input stage (12) having a field inducing coil (18) through which input electronic audio signals are to be transmitted to set up an electromagnetic field. The field inducing coil (18) is weakly coupled to an electromagnetic field receptor (26) such that when an input electronic audio signal is transmitted through the inducing coil (18); an induced electronic audio signal is produced having an enhanced harmonic content compared to that of the input electronic audio 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 27, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2016.
- 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.