Signal-receiving and signal-processing unit
CA 2182943 C · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Hedberg, Mats Olof Joakim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A signal-receiving and signal-processing unit connected to one or several conductors is adapted to transmit information-carrying signals in the form of voltage pulses. The conductor is connected to a transistor in a signalreceiving circuit to affect a current by using variations in the voltage value of a pulse. The current is in the form of pulses that pass through the transistor. The current is generated by the voltage pulse variations and voltage level. The current is given a signal-adapted information-carrying form by a signal-processing circuit. The transistor in the signal-receiving circuit is coordinated with at least one other transistor so that together they form a current mirror …
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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 February 16, 1995 and granted April 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 16, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2017.
- 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.