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Expired Canadian patentCanada

Television device for the optional processing of a cscc signal or separate scc and c signals

CA 2058425 C · Owner: Lamy, Christophe · Inventors: Lamy, Christophe

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A television system comprises a first input terminal (20) for providing a composite video (CSCC) signal or a separated luminance (SCC) signal, and a second input terminal (15) for providing a separated chrominance (C) signal. A change-over switch (11) has a first input (a) coupled to the first input terminal (20) through a path including a color subcarrier filter (9), a second input (b) coupled to the second input terminal (15) through a path not including the color subcarrier filter (9), and an output (c) coupled to the input (d) of a color decoder (8). The change-over switch couples the input (d) of the color decoder (8) to the first input terminal (20) in a first position (a), and …

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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 June 15, 1990 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 15, 1990
GrantedJanuary 16, 2001
Term endedJune 15, 2010
Patent numberCA 2058425 C
Classification (IPC)H04N9/79 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 15, 1990Patent grantedJan 16, 2001Term endedJune 15, 2010

Sources & verification

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