Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Patent
1990-03-02
1992-12-15
Brier, Jeffery A.
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
369 54, 369 53, 381102, 381108, G11B 1912, H03G 900
Patent
active
051723581
ABSTRACT:
A loudness control circuit for an audio device used in a reproduction circuit for reproducing a music signal recorded on a recording medium comprises one or plural level detection circuits for detecting levels of signal components of low and high frequency regions of a reproduced signal and control circuits for controlling the levels of the signal components of low and high frequency regions of the reproduced signal in response to outputs of the level detection circuits. The level control is made in accordance with a sound-pressure level for each frequency region of a reproduced signal so that an optimum compensation of the level in response to the sound-pressure level becomes possible.
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Brier Jeffery A.
Truong Khoi
Yamaha Corporation
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