G - Physics – 11 – B
Patent
G - Physics
11
B
352/10.3
G11B 15/20 (2006.01) G11B 15/02 (2006.01) G11B 15/10 (2006.01) G11B 15/12 (2006.01)
Patent
CA 1145460
ABSTRACT In a tape transport having a bidirectional drive for movement of tape at playback speed and fast speed in either direction, including a reversing mechanism, signal detection circuit means for receiving audio signals from one or the other sets of head channels and for producing actuating signals in response to a silence interval of predetermined minimum duration in audio signals indicating a silence period between recordings on the corresponding set of recording tracks, control means for the drive including a member having two states representing the respective directions of tape movement, con- nected for switching the sets of head channels to accommodate the direction of tape movement upon reversal of the drive, and disconnected from switching the sets of head channels upon reversal of the drive for movement of the tape at fast rewind speed, so as to maintain the same set of head channels enabled when the drive is shifted to fast forward or fast rewind in order to playback the same tracks for detection of silence intervals as those selected for listening.
362504
Macrae & Co.
Staar S.a.
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