Method and apparatus for utilizing a drive tape
CA 1215171 A · Owner: Sony Corporation · Inventors: Odagiri, Yoichi; Sato, Tsuguo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention involves a method and apparatus to prolong the useful life of a drive tape used in a magnetic contact printer to advance a master and copy tapes past a transcribing head to transcribe the signals on the master tape onto the copy tape. The present invention provides a method for using the entire length of the drive tape even though individual segments on different master tapes may be shorter than the length of the drive tape. In the method of the present invention the drive tape is rewound after each transcription only part of the way to the beginning of that transcription. The next transcription will then require the use of a part of the drive tape not used in the …
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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 December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 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.