Passive universal communicator
CA 1300289 C · Owner: Nysen, Paul Anton · Inventors: Nysen, Paul Anton; Tobias, Raphael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for two-way communication between a transmitter/receiver unit (called a controller) and at least, one second transmitter/receiver unit (called a communicator). The controller includes means for pseudo-randomly varying the frequency or phase of a carrier signal and means for mixing the carrier signal with a second modulated carrier signal thereby to provide security against jamming eavesdropping, and/or range gating on said first or second electromagnetic wave signal.
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 May 5, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 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.