Device and method for estimating sampled value of impulse response and signal reproduction system using the device
CA 2046172 A1 · Owner: Ueno, Norio · Inventors: Ueno, Norio; Awata, Yutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a device for estimating a sampled value of an impulse response from input and output signals of a decision circuit which performs a signal decision procedure for reproducing a digital signal there are, provided a first part, operatively coupled to the decision circuit, for generating a first average of absolute values of samples of decided values obtained from the output signal of the decision circuit a second, part, operatively coupled to the decision circuit for, generating a second average of absolute values of samples of equalized outputs obtained from the input signal of the decision circuit, and a third part operatively coupled to the first and second means for, generating a ratio …
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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 July 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 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
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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.