Dynamic focus signal shaper

Details Dynamic focus signal shaper Dynamic focus signal shaper

G - Physics

01

R

355/11

G01R 13/22 (2006.01) H04N 3/26 (2006.01)

Patent

CA 1235526

17 Abstract A dynamic signal shaper for a cathode ray tube display system is described. In some cathode ray tubes an electromagnetic lens is driven by a correction signal derived from the beam deflection signals. The required correction signal is proportional to the product of the squares of the horizontal and vertical deflection signals. The described signal ahaper incorporates means for making the constant of proportionality independently adjustable for beam deflections in each corner of the cathode ray tube screen.

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