Speech to data converter
CA 2425137 A1 · Owner: O'Quinn, D. Gene · Inventors: O'Quinn, D. Gene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for reducing the amount of data sent when transmitting speech by obtaining the spectrum content of digital speech (406). First analog speech is converted to digital speech (406). Then the digital speech is divided into frames and a spectrum analysis is performed on the frames (408). Frames with similar spectrum are combined (410). Then a second spectrum analysis is performed in predetermined steps (412). The data from the spectrum analysis of each frame is compressed and sent to a receiver (414). The receiver uses the data to reconstruct the frame (418). The frame is combined with other frames to reproduce the digital signal (420). Then the digital , signal is …
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 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2023.
- 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.