Abstract: A detecting device for detecting abnormality in the tape travel, comprises detectors for detecting capstan rotation pulses which have a frequency in accordance with the rotational speed of a capstan which drives and causes a tape to travel, supply reel rotation pulses which have a frequency in accordance with the rotational speed of a supply reel which pays out the tape, and take-up reel rotation pulses which have a frequency in accordance with the rotational speed of a take-up reel which takes up the tape, and a detecting circuit supplied with the three kinds of rotation pulses, for detecting abnormality in the tape travel and for producing an abnormality detection signal which indicates that an abnormality has been detected in the tape travel.

Abstract: A temporary stop mode cancellation device for cancelling a temporary stop mode in which the tape travel of a magnetic tape is temporarily stopped in a recording and/or reproducing apparatus, comprises a timer for producing a first signal when a first predetermined time interval T1 elapses from a time when the recording and/or reproducing apparatus is set to a mode in which the rotation of a capstan motor is temporarily stopped and the tape travel of a magnetic tape is temporarily stopped, and for producing a second signal when a second predetermined time interval T3 elapses from a time when the first predetermined time interval T1 has elapsed.