| 摘要 |
A digital signal recording method and apparatus for recording digital signals of two channels along tracks (Ta, Tb) on a magnetic tape (14) in a helical pattern by employing at least two pairs of rotary heads (Wa, Wb; Ra, Rb) mounted on a rotatable drum (12) oppositely to each other and by making use of a read-after-write function, the paired heads (Wa, Wb; Ra, Rb) being disposed adjacent to each other. The input signal (32) to be recorded is compressed such that the digital signal recording period for each relevant track (Ta, Tb) is shortened by a ratio (&thetas;w/ alpha a; &thetas;r/ alpha b) corresponding to a time for which a write period for one track and a read period for adjacent one overlap each other. The write period and the read period are thus prevented from overlapping. The reproduced signal for the read-after-write function is prevented from being masked by an input signal recording current. <IMAGE> |
