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Expired Canadian patentCanada

Arrangement for combatting intersymbol interference and noise

CA 1320997 C · Owner: Wong, Yau C. · Inventors: Wong, Yau C.; Bergmans, Johannes W. M.

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Abstract From the Canadian patent

PHN 12.013 20.6.1987, ABSTRACT:, Arrangement for combatting intersymbol interference and noise. An arrangement for combating intersymbol interference and noise introduced into a data signal transmitted at a symbol rate 1/T by a transmission channel having a memory span LT corresponding to a number of L consecutive data symbols, comprises a receive filter (RF), a first decision circuit (ID) for forming preliminary symbol decisions in response to the transmitted data signal, a second decision circuit (FD) for forming final symbol decisions means (FFS, and FBS) for compensating pre- and post-cursive intersymbol interference, and a combining circuit (AD) for forming the input signal for 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

  • Granted August 3, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 15, 1988
GrantedAugust 3, 1993
Term endedAugust 3, 2010
Patent numberCA 1320997 C
Classification (IPC)H04L25/03

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedJan 15, 1988Patent grantedAug 3, 1993Term endedAug 3, 2010

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