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Canadian application, no grantCanada

Serial digital data communications receiver with improved automatic cable equalizer, agc system, and dc restorer

CA 2201834 A1 · Owner: Gennum Corporation · Inventors: Webster, Stephen Paul

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A serial digital data communications receiver with an improved automatic cable equalizer that is less susceptible to jitter and has greater multi-standards capability, and an improved automatic gain control system with a DC restorer that provides optimal edge jitter performance while avoiding the possibility of a latch-up condition at the start of data transmission. The automatic cable equalizer for equalizing signals received over cables of different lengths has multiple stages each having a transfer function of 1 + Kifi(j~) wherein each of the Ki vary in accordance with a sequential gain control methodology. The AGC system uses the difference between pass band filtered versions of 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 April 4, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 4, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 4, 1997
GrantedNo grant recorded
Term endedApril 4, 2017
Patent numberCA 2201834 A1
Classification (IPC)H04B3/04 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedApril 4, 1997Term endedApril 4, 2017

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.