Using discrete message-oriented services to deliver short audio communications
CA 2275828 C · Owner: Lucent Technologies Inc. · Inventors: Dolan, Michael Francis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Delivery of short audio communications to remote end user devices uses discrete, message-oriented service messages for delivery of the audio messages. Audio information, is captured, encoded by means of audio compression technology and stored at a , message, center. Alternatively the audio information may be stored in an uncompressed format and, compressed immediately before delivery. The compressed audio information is transmitted, by means of Short Message Service or another discrete message-oriented service to the end, user device, where it is decompressed and played to the recipient. Message delivery can be, accomplished in parallel with some other ongoing activity at the end user …
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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 June 21, 1999 and granted January 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 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.