Optical two-way transmission system with loop reflector modulator
CA 1309141 C · Owner: Payne, David Brian · Inventors: Mortimore, David Bryan; Payne, David Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A two transmission system having a source (2) at one terminal (A) and a fibre loop at the other terminal (B). Convertional modulation techniques are used at the terminal with the source (2) whereas at the other terminal (B) modulation is achieved by modulation of the birefringence of the loop. Figure 1
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 October 20, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 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.