Digital data detector
CA 2084860 A1 · Owner: Sharp Kabushiki Kaisha · Inventors: Takeuchi, Hitoshi; Yamawaki, Chiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digital receive signal is sampled by an A/D converter, and the position of a point at which the receive signal crosses a reference level is obtained in response to sampling data by an exclusive OR gate. A phase interval between the present sampling point and the point at which the receive signal crosses the reference level is obtained by an arithmetic circuit and the phase, of the present sampling point is obtained in accordance with the position of the crossing point the phase, interval P between the present sampling point and the crossing point obtained by arithmetic circuit the phase, of a preceding sampling point obtained by an I-bit parallel delay circuit, and the phase of a sampling …
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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 December 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2014.
- 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.