DIFF Subgroup
G06G 7/19 for forming integrals of products, e.g. Fourier integrals, Laplace integrals or correlation integrals; for analysis or synthesis of functions using orthogonal functions
Introduced: September 1968
Full Title
Devices in which the computing operation is performed by varying electric or magnetic quantities > Arrangements for performing computing operations, e.g. amplifiers specially adapted therefor > for forming integrals of products, e.g. Fourier integrals, Laplace integrals or correlation integrals; for analysis or synthesis of functions using orthogonal functions
CPC subdivides this area 6x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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