Program links and bulletins for audio information delivery
CA 2300385 A1 · Owner: Linden, Thomas M. · Inventors: Loewenthal, William J.; Linden, Thomas M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an audio information device which stores a variety of pre-recorded program material a linking, facility is provided connecting audio data files. The links are context related; while the user is listening to a first program. an indication is given to him that another program is available with related content. Upon receipt of a command by the user (e.g. pressing a key on the device keypad) the second (related) file is played. Upon completion of the second file play of, the first file is resumed at the point of interruption. In another version an alert bulletin facility is, provided whereby during listening to a first program upon receipt in real time from the transmission facility of …
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 March 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 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.