A time-division radio that is powered by a low-power energy source
CA 2248408 A1 · Owner: Vermeer, Fulps Vincentinus · Inventors: Vermeer, Fulps Vincentinus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A time-division radio is disclosed that can use a lower-power energy source than radios in the prior art. An illustrative embodiment of the present invention comprises a time-division transmitter that has a transmit mode and an idle mode a primary energy storage device and a, secondary energy storage device. The radio uses the secondary energy storage device as a kind of "power cache" in which to store power when it is in abundance and from which to draw power when it is scarce. When the transmitter is in idle mode the primary energy storage, device charges the secondary energy storage device and powers the transmitter. But when the transmitter is briefly in transmit mode and, therefore, …
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
- Filed September 24, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2020.
- 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.