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DIFF Subgroup
H04N 3/223

Controlling dimensions (by maintaining the cathode-ray tube high voltage constant H04N3/185)

Introduced: January 1985

Title

Titles differ between systems:

IPC: Controlling dimensions

CPC: Controlling dimensions (by maintaining the cathode-ray tube high voltage constant H04N3/185)

Full Title

Full titles differ between systems:

IPC:

Scanning details of television systems; Combination thereof with generation of supply voltages > by means not exclusively optical-mechanical > by deflecting electron beam in cathode-ray tube > Circuits for controlling dimensions, shape or centering of picture on screen > Controlling dimensions

CPC:

Scanning details of television systems; Combination thereof with generation of supply voltages > by means not exclusively optical-mechanical (H04N3/36 takes precedence) > by deflecting electron beam in cathode-ray tube > Circuits for controlling dimensions, shape or centering of picture on screen > Controlling dimensions (by maintaining the cathode-ray tube high voltage constant H04N3/185)

No child classifications to compare. This is a leaf node in both IPC and CPC.