Signal processing circuit in a colour video signal recording and/or reproducing apparatus
CA 1098203 A · Owner: Victor Company Of Japan, Ltd. · Inventors: Kosaka, Yositeru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A signal processing circuit is used in a colour video signal recording and/or reproducing apparatus comprising: frequency conversion means for converting the frequency of a carrier chrominance signal separated from an input colour video signal to a low frequency band and/or for converting the frequency of the carrier chrominance signal separated from a reproduced video signal and converted to the low frequency band to an original frequency, band; and rotating heads for recording and/or reproducing a video signal including the converted carrier chrominance signal on and/or from parallel adjacent tracks on recording medium. The signal processing circuit comprises: means for determining …
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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 March 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 1998.
- 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
Timeline From CIPO dates
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.