Sound generation circuit

作者: Masaoki Sagara , Tsuyoshi Tamura

DOI:

关键词: Sound generationTone (musical instrument)Logic circuitrySignalElectronic engineeringMusical noteEngineeringDual (category theory)

摘要: A sound generation circuit for producing a dual tone which includes memory circuitry storing data controlling production of the tone, selection selecting stored in and frequency dividers an output signal having varies based on selected by circuitry. The is dividing also logic to inhibit musical note when currently tone. melody dial sections employ common elements.

参考文章(14)
Douglas Reid Holberg, Tone generator circuit ,(1980)
Yasuhiko C, O Patent Division Fujita, O Patent Division Masuda, Eiji C, Dual-tone multiple-frequency-signal generating apparatus ,(1984)
Richard E. Waddell, Kenneth B. Woodard, Ronald D. Biggs, Synthesized sound telephone alerting means ,(1984)
Mitsuhiro Goto, Electronic tone generator Journal of the Acoustical Society of America. ,vol. 70, pp. 1555- 1555 ,(1979) , 10.1121/1.387060