Power amplifier device for a composite signal
CA 2099216 A1 · Owner: Thomson-Lgt Laboratoire General Des Telecommunications · Inventors: Michel, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure relates to the linear power amplification, in a single channel, of a composite signal formed by two independent signals. In a single channel formed by correction means followed by a linear preamplifier followed by a saturated amplifier the, filtering and symmetry effect produced both in the, correction means and in the amplifier is profitably, used to compensate for the clipping due to the amplifier. This makes it possible to obtain undistorted output signals whose amplitude exceeds the level of saturation of the amplifier. The compensation makes it necessary for the transfer characteristic of the correction means to have a given slope between two points beyond which the …
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 June 25, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2015.
- 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.