发明名称 |
Method and circuitry for digital-analog frequency generation |
摘要 |
A method and circuitry for frequency generation, especially for electronic organs, in which a digital signal is developed by the actuation of an element such as a key of an organ keyboard. The digital signal is converted to a respective voltage signal and the voltage signal is employed to control a voltage controlled oscillator which supplies a signal corresponding in frequency to the actuation of the aforesaid element. An organ provided with a system for frequency generation according to the present invention can be operated monophonically or polyphonically and is capable of producing desirable effects, including celeste and portamento effects.
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申请公布号 |
US4073209(A) |
申请公布日期 |
1978.02.14 |
申请号 |
US19760675323 |
申请日期 |
1976.04.09 |
申请人 |
KIMBALL INTERNATIONAL, INC. |
发明人 |
WHITTINGTON, BILLY J.;WELSH, ALAN B.;BURNS, TIMOTHY L. |
分类号 |
G10H1/18;G10H5/00 |
主分类号 |
G10H1/18 |
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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