| 摘要 |
The shading correction circuit of projection television includes a pulse generating circuit for generating a horizontal parabola pulse and a horizontal sawtooth wave pulse having a 1-horizontal line period according to horizontal and vertical blanking signals, a pulse shaping circuit for generating first, second and third shading correction pulses, and a mixer circuit for mixing the first, second and third shading pulses with a luminance signal, thereby removing a shading phenomenon of projection television.
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