Transmission system with backup function
CA 1309776 C · Owner: Fujitsu Limited · Inventors: Hayakawa, Masahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transmission system having slave stations for processing data received from the master station and generating system common data, a particular slave station is provided to backup the master station when it fails. The system common data is sent to the master station and also the particular slave station. The particular slave station not only automatically detects the failure of the master station but also executes the polling of the other slave stations in place of the master station on the basis of the system common data stored in the particular slave station.
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
- Granted November 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 2009.
- 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.