On-screen display

Details On-screen display On-screen display

H - Electricity

04

N

350/3, 350/83

H04N 7/00 (2006.01) H04N 5/445 (2006.01)

Patent

CA 1214863

ABSTRACT To prevent undesired bending of vertical bar type information displayed on the screen of a kinescope due to kinescope beam current variations, means are provided for reducing the beam current threshold level of an automatic beam current limiter stage to a lower threshold level whenever vertical bar type information is displayed.

463932

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