Method and apparatus for adaptive pre-demodulation pulse shaping
CA 2231944 C · Owner: Varga, Brian Daniel · Inventors: Schuppe, Raymond Walter M.; Varga, Brian Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
One aspect of the invention provides a method of processing an PPM encoded input signal, transmission of data pulses to a data processing apparatus by processing the pulses by, lengthening or shortening the pulses to a length within the predetermined acceptance, pulse duration range of the data processing apparatus comprising: detecting when the, input pulses of the input signal fall below the duration required and lengthening the pulses, by a sufficient amount to bring them within the predetermined duration; detecting when the, input pulses of the input signal exceed the duration required and reducing the duration of, the pulses by a sufficient amount to bring them within the …
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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 13, 1998 and granted December 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.