| 摘要 |
<p>In the event of a change of the picture aspect ratio, for example for reproduction of a picture with 4:3 on a screen with 16:9, it is desirable that this S correction be reduced or completely switched off in order that stretching deliberately occurs at the left-hand and right-hand edges of the picture. This is achieved by a series resonant circuit having an inductance (L1) and a capacitance (C1) which can be connected in parallel with the S capacitor (CS1). This network changes the voltage (UC) across the S capacitor (CS1) in such a way that the S correction appreciably decreases and desirable line stretching occurs at the left-hand and right-hand edges of the picture.</p> |
