Method of communication
CA 2108458 C · Owner: Adams, John Leonard · Inventors: Adams, John Leonard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A communications system including a node (10) connected a via an ATM connection (11) to a cell Synchronisation and Recovery Unit (12). This allows a number of lower bit rate paths (14 16) (e.g. n x 64 kbit/s) to be utilised via a switching centre (15). Another synchronisation and recovery unit (17) is connected through an ATM link (18) to a selected recipient interface (24-29). A method is provided in which distinct first header portions in idle cells are used to determine the cyclic order in which the ATM cell portions are transmitted down paths (14,16) and to determine the delay experienced through the paths in order to reconstruct the cells from the portions received from the respective …
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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 August 7, 1992 and granted June 23, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2014.
- 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.