US05012461Disk recording apparatus for re-establishing a recording mode at a desired address
AssigneeSony Corporation
Assign./FiledApril 30, 1991/ Oct. 21, 1988
InventorsYoshida; Tadao, Ando; Ryo
SummaryDetecting mis-tracking during recording (by watching the ADIP addresses).
AbstractA disk recording apparatus for recording data such as information concerning a musical performance on a recording disk (1) to which absolute addresses have been imparted in advance. Vibration during the recording operation and unexpected track jumping due to defects in the recording disk are detected relying upon the discontinuity of absolute addresses reproduced from the recording disk (1). In case track jumping has taken place, the laser power of the optical head (12) is dropped to the reproduction level and the track jump control is actuated to access a desired track. The recording operation is then resumed for the track.