Speech and sound synthesizer
CA 1209701 A · Owner: Pfeiffer, J. David · Inventors: Pfeiffer, J. David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A speech synthesizer is disclosed in which instantaneous conversational speech can be produced by an operator. The speech synthesizer comprises a two dimensional input device, such as a joystick or a playing tablet for producing, vowel-like sounds, a plurality of selection keys for producing consonant-like sounds and a third control for varying the pitch or inflection of the produced signal. The electronic circuit for producing the voicing wave forms can be either analog or digital.
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
- Granted August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
- 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.