Arrangement for generating a compensation signal for digital transmission equipment
CA 2037636 A1 · Owner: Schenk, Heinrich · Inventors: Schenk, Heinrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Arrangement for generating a compensation signal for digital transmission equipment. The compensation signal is formed by an iterative circuit of a transversal first filter and a recursive filter. No further data needs to be exchanged between the filters. The first filter and the recursive filter are connected in series so that the pulse response of the filter arrangement corresponds to the convolution product of the pulse responses of the first filter and of the recursive filter.
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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 March 6, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2013.
- 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.