发明名称 |
Sub-harmonic generator and stereo expansion processor |
摘要 |
A sub-harmonic generator includes: an input filter operable to receive an input signal containing frequencies from among a first range and to produce a first intermediate signal containing frequencies from among a second range; a signal divider circuit operable to receive the first intermediate signal and to produce a square wave signal containing square wave signal components at fundamental frequencies from among a third range, the third range of frequencies being about one octave below the second range of frequencies; a wave-shaping circuit operable to receive the square wave signal and to produce a second intermediate signal containing sinusoidal signal components from among frequencies corresponding to the respective fundamental frequencies of the square wave signal components; an RMS detector operable to produce an RMS signal corresponding to an instantaneous amplitude of the first intermediate signal; and a voltage controlled amplifier operable to amplify the second intermediate signal by an amount proportional to the RMS signal to produce a sub-harmonic signal.
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申请公布号 |
US2003002684(A1) |
申请公布日期 |
2003.01.02 |
申请号 |
US20000727903 |
申请日期 |
2000.12.01 |
申请人 |
PEAVEY ELECTRONICS CORPORATION |
发明人 |
COATS ELON RAY |
分类号 |
H04S1/00;(IPC1-7):H03G3/00;H04R5/00 |
主分类号 |
H04S1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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