SOUND REPRODUCING DEVICE

PURPOSE:To suppress the variation of high-and peaking characteristics, by connecting an active filter circuit to an equalizer amplifier to which an output of a magnetic head is supplied. CONSTITUTION:A sound signal of a magneic tape 1 is reproduced by a magnetic head 2, is amplified by an equalizer...

Full description

Saved in:
Bibliographic Details
Main Author KUWABARA KAZUMI
Format Patent
LanguageEnglish
Published 26.04.1983
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To suppress the variation of high-and peaking characteristics, by connecting an active filter circuit to an equalizer amplifier to which an output of a magnetic head is supplied. CONSTITUTION:A sound signal of a magneic tape 1 is reproduced by a magnetic head 2, is amplified by an equalizer amplifier 4, and also an NAB characteristic is made equivalent. In this regard, this equalizer amplifier 4 served as a buffer circuit of a peaking circuit 6, too. Said sound signal is outputted from a sound output terminal 5 after desired peaking in a high band has been applied by the peaking circuit 6. According to this invention, instead of constituting the peaking circuit by use of inductance of a coil of a reproducing head, which has been executed conventionally, an active filter circuit which has made low-band gain constant is provided separately, therefore, the peaking characteristics become almost constant, and the performance of the peaking circuit is elevated.
Bibliography:Application Number: JP19810168652