Audio signal recording and/or reproducing apparatus
CA 1301916 C · Owner: Takahashi, Takao · Inventors: Nakano, Kenji; Takahashi, Takao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and apparatus for helically scanning a magnetic tape having slant tracks wherein the slant tracks are divided into a plurality of segments. A helical scan drum has at least first and second rotary head pairs. The first head pair scans at least one of the segments of a first track while the second head pair simultaneously scans at least one of the segments of the second slant track of the magnetic tape. This system is particularly useful for utilizing a tape for portable audio use wherein the same tape is also useful for video applications.
Read the whole patent
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 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
- 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.