Method and system for producing when a call is received on a standard portable telephone, a sound signal as powerful as a domestic telephone set ringing signal
CA 2335916 A1 · Owner: Tan Yuan Industrial Limited · Inventors: Travere, Rene; Fater, Vladimir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method and a system for producing when a call is received on a standard portable telephone a sound signal as powerful as a domestic telephone set ringing signal. Said method comprises steps which consists in: autonomous detecting (1) by the telephone directly or indirectly the transmitting station call and generating a detection signal; triggering (2 3) by means of said detection signal, a sound signal transmission as powerful (4) as a domestic telephone set ringing signal. Thus the user of a standard radio-telephone is informed about a call even he is at some distance from the standard radio-telephone.
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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 July 1, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 1, 2021.
- 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.