Apparatus for minimizing signal degradation during the copying of video signals from one recording medium to another recording medium

DETAILED DESCRIPTION Accordingly, it is an object of the present invention to provide a dubbing apparatus which is capable of revising recording information at the time of dubbing, as necessary, thereby overcoming the drawbacks of the conventional art.
To this end, according to the present invention, there is provided a dubbing apparatus comprising: input means for inputting revising data for instructing a revision of recording information; a decoder for decoding the recording information to be dubbed; recording information revising means for preparing new recording information on the basis of the revising data and the decoded recording information; an encoder for encoding the new recording information; a recording information modulating circuit for modulating the encoded recording information; a frequency modulation circuit for frequency modulating a video signal to be dubbed; a synthesizing circuit for multiplex modulating the recording information and the video signal; and recording means for recording the multiplexed signal on a recording medium.
In the dubbing apparatus according to the present invention, since before recording is effected, reproduced recording information is revised in accordance with that recording, the recording information is revised appropriately.
In addition, if the dubbing frequency is used as one item of recording information and is adapted to be automatically incremented each time dubbing is carried out, the quality control of dubbing can be effected in a simple operation.