Networked sound masking system with centralized sound masking generation
CA 2690511 C · Owner: Moeller, Niklas · Inventors: Moeller, Niklas; Moeller, Klaus R.; Rusu, Mircea
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce an audio signal generated by a central sound masking module. The audio signal comprises a sound masking signal a paging signal or a sound masking signal mixed with a paging signal. The sound masking signal is generated by the central sound masking module or a selected from a number of sound masking signal inputs at the control unit. Each of the master units is …
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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 March 13, 2003 and granted February 9, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2025.
- 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
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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.