System for recording and/or reproducing a television signal
CA 1093680 A · Owner: Sony Corporation · Inventors: Takahashi, Hiroo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for recording and/or reproducing a television signal containing a video signal component and a sound signal component is improved to establish long-time recording and reproducing in which the video signal, component is periodically sampled for example, at every other frame period and the sound signal component and a delayed sound signal component obtained by means of an one-frame delay device by which the sound signal component is delayed by one frame period are alternately sampled at the first half and the second half of each line period in the duration of the sampled frame period in order to be recorded on a recording medium and be reproduced from the recording medium 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
- Granted January 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 13, 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.