Method for transmitting, via a plurality of asynchronously time-divided transmission channels, a flow of data cells, the state of a counter for each transmission channel being kept up to date in accordance with the number of data cells per unit of time
CA 2008648 C · Owner: Koninklijke Ptt Nederland N.V. · Inventors: Dool, Frans Van Den; Wal, Jacob Cornelis Van Der
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The flow of data cells through a transmission medium with a number of virtual, asynchronously time-divided transmission channels is protected against excessive crowding of data cells in any channel, by means of a counter for each channel and the recording of the time of arrival of data cells in each channel. At the arrival of each data cell the counter is decreased by a value which is a function of the length of time between the moment of arrival of that data cell and the moment of arrival of a preceding data cell with the same channel designation. The state of the counter is compared with a threshold value and the data cell will be switched through to the downstream portion of the channel …
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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 January 26, 1990 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 2012.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.