Bus coupling circuit
CA 2000919 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
A bus coupling circuit is used for coupling data between a transmitting subscriber and a receiving subscriber by way of a data transfer bus, each subscriber including: a bidirectional driver for transmitting and receiving data each, bidirectional driver including an apparatus for introducing for a direct voltage on the bus, and a dirct voltage splitting device constituting a working impedance for the driver and connected between the driver and the bus. Each driver has a first input which is remote from the bus and a second input electrically connected to the bus. The bus coupling circuit includes a source of direct supply voltage; a hysteresis circuit connected to each driver the …
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 October 18, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 18, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 2011.
- 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.