- 专利标题: Bass compensation device and a sound system using the device
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申请号: US10121604申请日: 2002-04-15
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公开(公告)号: US07079660B2公开(公告)日: 2006-07-18
- 发明人: Shigeji Ohama , Hiroyuki Saito
- 申请人: Shigeji Ohama , Hiroyuki Saito
- 申请人地址: JP Kyoto
- 专利权人: Rohm Co., Ltd.
- 当前专利权人: Rohm Co., Ltd.
- 当前专利权人地址: JP Kyoto
- 代理机构: Morgan, Lewis & Bockius, LLP
- 优先权: JP2001-116325 20010416; JP2001-116326 20010416
- 主分类号: H03G5/00
- IPC分类号: H03G5/00
摘要:
The bass compensation device of the present invention includes a high frequency removing circuit for removing a high frequency component of an input sound signal; an absolute value circuit for full-wave rectifying an output signal of the high frequency removing circuit; a band limit circuit for selectively passing only a predetermined frequency range component from the output signal of the absolute value circuit; and an amplifier for amplifying the output signal of the band limit circuit, and bass compensation is performed by the output signal of the amplifier. This structure can realize a bass compensation device excellent in distortion-factor property and transient property.
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