发明名称 |
Voltage controlled type electronic musical instrument |
摘要 |
This invention provides an electronic musical instrument comprising a keyboard circuit for producing a pitch determining voltage signal representing the note of an operated key, a voltage controlled oscillator for producing a tone signal having a tone pitch determined by the pitch determining voltage signal, and a voltage controlled lowpass filter for imparting a desired tone color to the tone signal. The voltage controlled lowpass filter is responsive to the pitch determining voltage signal from the keyboard circuit to control the cutoff frequency of the voltage controlled lowpass filter in such a manner that the harmonic content of a higher tone signal is decreased from that of a lower tone signal.
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申请公布号 |
US3978754(A) |
申请公布日期 |
1976.09.07 |
申请号 |
US19750552755 |
申请日期 |
1975.02.25 |
申请人 |
NIPPON GAKKI SEIZO KABUSHIKI KAISHA |
发明人 |
ADACHI, TAKESHI |
分类号 |
C12N1/32;G10H5/00;(IPC1-7):G10H1/00;G10H5/02 |
主分类号 |
C12N1/32 |
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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