Hands-free, voice-operated remote control transmitter
CA 2395856 A1 · Owner: Bush, William Stuart · Inventors: Roura, Carlos Ferdinand; Bush, William Stuart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless, programmable, sound-activated and voice-operated remote control system which generates and transmits an appliance control signal to a selected appliance in response to a voice command has a speech recognition (50) for recognizing the voice command. The speech recognition circuit (50) has a low power sound activation circuit (40) for detecting the presence of voice signals from the microphone (20) and an audio switching circuit (30) for automatically switching between sound activation mode and speech recognition mode. The present invention may be pre-programmed with a universal library of codes for controlling various appliance categories and appliances produced by …
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 December 21, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 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.