Method and arrangement for data transmission
CA 2073121 C · Owner: N.V. Philips' Gloeilampenfabrieken · Inventors: Zijderhand, Frans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method of data transmission from a plurality of sub-stations to a main station over a common channel which is subdivided into time slots whose length, and synchronization are determined by a corresponding time slot distribution of a data, transmission signal sent out by the main station in which each sub-station in , each time slot has a predetermined probability p of transmitting a data packet the , throughput of, the communication channel is improved in that said probability p is adapted to the load, of the communication channel.
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 3, 1992 and granted June 27, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 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.