发明名称 Colour television receiving arrangement with a colour correction circuit
摘要 A colour television receiving arrangement contains a colour correction circuit (14) for restoring the signal shape of the scanned video signal lost during the transmission. For this purpose, signal emphasising circuits (12, 13), which emphasise the amplitude of the signal (Y) transferred by the signal emphasising circuits by a predetermined factor in a predetermined frequency range in accordance with a control signal, are connected in front of or after the colour matrix circuits (7, 8, 9). The signal emphasising circuits are controlled by a colour detector circuit (19) which generates output signals (Sr, Sb, Sm) for desired colours if the colour vectors generated by the colour difference signals (R-Y, B-Y) are within predetermined vector fields of the colour vector diagram. <IMAGE>
申请公布号 DE3421434(A1) 申请公布日期 1985.12.12
申请号 DE19843421434 申请日期 1984.06.08
申请人 STANDARD ELEKTRIK LORENZ AG 发明人 MITSCHKE,HELMUT,DIPL.-ING.
分类号 H04N9/77;(IPC1-7):H04N9/77 主分类号 H04N9/77
代理机构 代理人
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