摘要 |
<p>In a video recorder (1) for the recording and reproduction of picture signals in standard-play modes and long-play modes a reconverted picture colour signal supplied by a frequency-conversion stage (70) is passed through a delay device (84) having a delay of one line period in order to compensate for reproduction-dependent time errors during multi-speed reproduction of a long-play recording. In such a video recorder (1) a rectangular detection signal of half the line frequency is supplied to an output (76) of a phase detection stage (73) which detects the phase of the burst signal in the reconverted picture colour signal, which detection signal is applied, via a connection (91), to a modulator (36) for the modulation of non-modulated character signals as a control signal (S2) for the modulator (36), which generates modulated character signals suitable for insertion into the reproduced picture signals. The connection (91) includes a switching device (93) which enables a further delay device (94) having a delay of one line period to be included in the connection (91) in the case of multi-speed reproduction of a long-play recording by the video recorder (1), as a result of which the control signal (S2) is delayed by the same time as the picture colour signal during such a reproduction mode, which ensures that the picture colour signal and the character colour signal always remain locked to each other in the same way in all the modes of operation. <IMAGE></p> |