Optical switching system
CA 1295040 C · Owner: Cselt - Centro Studi E Laboratori Telecommunicazioni S.P.A. · Inventors: Melindo, Flavio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical switching system is provided in which input channels carrying packetized data are switched sequentially at a high bit rate to output channels through an optical switching network. The packets or an input channel are time compressed, and a suitable timing converted into optical signals and applied to an optical switching network to be switched to the desired output channel, in which they are reconverted into electrical signals and expanded to their original duration. A central processor controls channel switching through the switching network by means of a driving circuit.
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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 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.