Method and apparatus for utilizing a drive tape

Details Method and apparatus for utilizing a drive tape Method and apparatus for utilizing a drive tape

G - Physics

11

B

352/10.51

G11B 5/86 (2006.01) G11B 15/20 (2006.01) G11B 15/26 (2006.01) G11B 27/00 (2006.01)

Patent

CA 1215171

ABSTRACT OF THE DISCLOSURE 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 previous transcription. The apparatus of the present invention uses a digital logic circuit to carry out that method. The apparatus comprises a counter that senses the length of advance of the drive tape for each transcription and detectors that provide signals to terminate the rewindings of the drive tape at the proper points.

445842

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