Title:
【発明の名称】サウンド信号出力回路及びその方法
Document Type and Number:
Japanese Patent JP3375745
Kind Code:
B2
Abstract:
A sound signal output circuit and method which controls the volume every time a new signal source is selected which has a different modulation degree, than the previous signal source and which prevents sound distortion caused by an over-modulated sound signal input. The circuit detects the peak value of the selected sound signal source, stores the detected peak value, compares the stored peak level with the detected peak level, and thereby selects the greater peak level. Next, the circuit applies the selected peak level to a gain control amplifier as a gain control value, so that when the sound signal source having a different modulation degree is selected, the volume can be automatically controlled.
Inventors:
Liang Jun
Application Number:
JP20083094A
Publication Date:
February 10, 2003
Filing Date:
August 25, 1994
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
H03G3/00; H03G3/30; H04R3/00; H03G3/20; (IPC1-7): H04R3/00; H03G3/20; H03G3/30
Domestic Patent References:
| JP2186812A |
Attorney, Agent or Firm:
Yasunori Otsuka (1 person outside)