for correcting amplitude versus frequency characteristic

Introduced: January 1985

Title

Titles differ between systems:

IPC: for correcting amplitude frequency characteristic

CPC: for correcting amplitude versus frequency characteristic

Full Title

Full titles differ between systems:

IPC:

Details of television systems > Picture signal circuitry for video frequency region > Circuitry for controlling amplitude response > for correcting amplitude frequency characteristic

CPC:

Details of television systems (scanning details or combination thereof with generation of supply voltages H04N3/00) > Picture signal circuitry for video frequency region (cameras or camera modules comprising electronic image sensors, or control thereof H04N23/00) > Circuitry for controlling amplitude response > for correcting amplitude versus frequency characteristic

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1985.

Child Classifications

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H04N 5/208 for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction since 1985 IPC+CPC Available in IPC and CPC