| 摘要 |
<p>PURPOSE:To almost eliminate erroneous detection by recording a queue signal at ultra low frequencies together with a sound signal, and changing the queue signal from presence to absence at a silent position on a tape. CONSTITUTION:A queue signal 16 at the ultra low frequencies is recorded together with a sound signal 15, a solid memory tape recorder is positioned at a silent position R on a tape which switches a mode from writing to reading, and the queue signal 16 is changed from the presence to the absence. Thus, since the queue signal is superimposed on a sound track, it can be reproduced by a general cassette recorder or the cassette recorder, compatibility can be held, since an edge, at which the regenerative queue signal 16 is changed from the presence to the absence at a position without the sound signal 15, is detected, the title system has drastically smaller erroneous detection compared with a conventional system, in which the sound signal 15 and the queue signal 16 are frequency-discriminated, and especially at the time of acceleration and deceleration of the stop/running of the tape, the sound signal 15 is not erroneously recognized as the queue signal 16 even when the regenerative frequencies are changed.</p> |
