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Expired Canadian patentCanada

Vsb reception system with enhanced signal detection for processing supplemental data

CA 2403133 C · Owner: Kwak, Kook Yeon · Inventors: Kang, Kyung Won; Gu, Young Mo; Kwak, Kook Yeon

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Abstract From the Canadian patent

A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence and a demultiplexer for , demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in …

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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 27, 2001 and granted July 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 27, 2001
GrantedJuly 12, 2011
Term endedDecember 27, 2021
Patent numberCA 2403133 C
Classification (IPC)H04N7/01 +2 more

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2002200420062008201020122014201620182020Application filedDec 27, 2001Patent grantedJuly 12, 2011Term endedDec 27, 2021

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