Music – Instruments – Electrical musical tone generation
Reexamination Certificate
2005-12-06
2005-12-06
Fletcher, Marlon (Department: 2837)
Music
Instruments
Electrical musical tone generation
C084S604000, C084S609000, C084S618000
Reexamination Certificate
active
06972362
ABSTRACT:
An electronic sound generation device is adapted to start arithmetic processing with a start signal. When the arithmetic processing is not completed in a period between two sampling signals of a constant period, a start signal for starting next arithmetic processing signal for the next period is output after the completion of the on-going arithmetic processing. The electronic sound generation device is also adapted to hold resultant data of arithmetic processing, which is output in synchronism with the sampling signal. An address for designating waveform data in a waveform memory is calculated upon the address arithmetic parameters received from a digital signal processor (DSP) having a sum-of-products arithmetic circuit. Using fractional parts of the addresses, the data read out from the waveform memory are interpolated, and supplied to the DSP.
REFERENCES:
patent: 4395931 (1983-08-01), Wachi
patent: 5342990 (1994-08-01), Rossum
patent: 5689079 (1997-11-01), Kosugi
patent: 5698803 (1997-12-01), Rossum
patent: 5744741 (1998-04-01), Nakajima et al.
patent: 5925841 (1999-07-01), Rossum
patent: 6137043 (2000-10-01), Rossum
patent: 2001-242878 (2001-09-01), None
Fletcher Marlon
Hogan & Hartson LLP
Rohm & Co., Ltd.
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