Data transmission method and arrangement
CA 2029706 A1 · Owner: Heichler, Johannes · Inventors: Heichler, Johannes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For the transmission of data in the form of difference signals between subscribers connected to a bus bus couplers, are provided which permit switching between transmit and receive operation. The bus couplers each include a multiplexer connected in such a manner that for receive opera-, tion, only push-pull states of the difference signal are evaluated. If common-mode states occur the immediately, previously decoded data are used. In the case of interference, e.g. one subscriber experiences a short circuit his, bus is terminated passively so that the bus traffic for the other subscribers is not adversely affected.
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 November 9, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2012.
- 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.