by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform

Introduced: January 1990

Full Title

Instruments in which the tones are synthesised from a data store, e.g. computer organs > by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

Child Classifications

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G10H 7/10 using coefficients or parameters stored in a memory, e.g. Fourier coefficients (G10H7/12 takes precedence) since 1990 +1 CPC IPC+CPC Available in IPC and CPC
G10H 7/12 by means of a recursive algorithm using one or more sets of parameters stored in a memory and the calculated amplitudes of one or more preceding sample points since 1990 IPC+CPC Available in IPC and CPC