Tape sound recorder

Abstract

Abstract PURPOSE: To ensure an automatic head leading action with the detection output, by writing for a fixed period the frequency signal under the audible frequency and used for head leading and detecting the written frequency signals. CONSTITUTION: The head leading detection circuit 6 consists of a low pass filter and voltage comparator, and the automatic head leading action is given in the quick winding and reproduction modes. Thus the redorded head leading signal of 10W 20Hz is reproduced as the signal of 200W400Hz. In this connection, the cut-off frequency is set to the low pass filter so as to pass only the reproduced head leading signal. In the case of input of the jumping address, the counter circuit 7 counts the input pulses by the up-counting action and counts the pulses sent from the circuit 6 by the down-counting action. Thus the stop signal of the feed action is produced by the zero output of the count number, performing an automatic head leading action. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Mitsunori Tsuchiya
• 👤 Tetsuo Sato
• 👤 Yasuo Kominami
• 👤 Masami Kawamura

Bibliographic Details