Device for editing and non-volatile optical storage of digital audio
CA 2769736 C · Owner: Advanced Audio Devices, Llc · Inventors: Kelley, Michael J.; Keller, Peter J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an optical storage device in the form of a compact disc recorder which includes sound receiving means for receiving analog signals a convertor connected to the sound receiving means for converting the received analog signals into digital data data storage structure communicatingly connected to the convertor for receiving the digital data from the convertor and storing the digital data received and a compact disc recordable drive communicatingly connected to the data storage structure for receiving the stored digital data from the data storage structure and recording the digital data onto a compact disc received by the compact disc recordable drive.
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 July 8, 1998 and granted May 14, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2020.
- 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.