Localized audio networks and associated digital accessories
CA 2485100 C · Owner: Goldberg, David · Inventors: Goldberg, Benjamin M.; Goldberg, David; Goldberg, Martha B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Individuals share music through portable audio devices (100) that synchronously play music by transmitting music signals from one device (unit A) to the other (unit B). Upon request other individuals can join such a , sharing group as a member and these new members can either be accepted automatically, or through voting by existing group members. So that members of a group can converse, the fraction of ambient sound admitted by the earphones of the portable device (100) can be manually set. In order to enhance the enjoyment of the music, wearable transducers (240 250, 260), such as light , emitting diodes respond to signals related to the beat of the music. Signals can be …
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 May 6, 2003 and granted October 9, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 6, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 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
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.