Digitally programmable sampled-analog transversal filter
CA 1087255 A · Owner: Menard, Pierre · Inventors: Roy, Dipak; Menard, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention pertains to a digitally programmable sampledanalog transversal filter which comprises of a charge transfer device delay analog-delay line with a non-destructive readout mechanism at each of the delay stages, a multiplying digital to analog conversion circuit which is multiplexed amongst the outputs from the delay stages to provide weighting of the time-shifted analog signal samples by digital techniques and a serial, summer network to sum a finite series of pulse amplitude modulated signals appearing at the output of the multiplying digital to analog conversion circuit.One particular advantage of the filter organisation is the wide output dynamic range capability, …
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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
- Granted October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 1997.
- 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.