Apparatus for detecting and compensating drop-outs in an audio and video signal
CA 1205188 A · Owner: Sony Corporation · Inventors: Kakuyama, Shinji; Hagita, Shoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Drop-outs are detected and compensated for in an apparatus for reproducing video and audio signals that have been recorded as first and second mixed signals in adjacent first and second parallel tracks, respectively, on a magnetic record medium such as a tape and in which each of the mixed signals is comprised of a video signal mixed with at least one frequency modulated audio signal, in the case of monaural, having a respective carrier frequency. The recorded mixed signals are reproduced by two magnetic heads that scan the adjacent first and second tracks to reproduce alternately the mixed signals recorded thereon and drop-outs are, detected in the reproduced signals. The audio signals are …
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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 May 27, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 2003.
- 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.