Spread spectrum power line communications with gold's code
CA 1302538 C · Owner: Nec Home Electronics Ltd. · Inventors: Endo, Kaoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to various improvements in spread spectrum power line communications. In particular the, invention relates to a method and apparatus for the use of an inherent Gold's code of each of various "slave" transmitter units to enhance the ability of the "slave" units to send messages to a single "master" unit receiver while avoiding data signal collision.
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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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.