DIFF Subgroup
H04N 3/16 by deflecting electron beam in cathode-ray tube
Introduced: September 1968
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
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
IPC and CPC are identically structured here. All 6 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H04N 3/18 Generation of supply voltages, in combination with electron beam deflecting IPC+CPC Available in IPC and CPC
- H04N 3/20 Prevention of damage to cathode-ray tubes in the event of failure of scanning IPC+CPC Available in IPC and CPC
- H04N 3/22 Circuits for controlling dimensions, shape or centering of picture on screen IPC+CPC Available in IPC and CPC
- H04N 3/26 Modifications of scanning arrangements to improve focusing IPC+CPC Available in IPC and CPC