Patent ID: 6215950
Filing Date: 2001-04-10
Classification: H04N

Abstract:
A digital signal recording apparatus for recording a digital signal on a recording medium, comprising:a mode setting means for setting a recording mode, the recording mode being one of a standard recording mode and a long-time recording mode having a longer recording time than that of the standard recording mode;a coding means for coding the digital signal so as to have a data amount corresponding to the recording mode set by the mode setting means, the data amount when the selected recording mode is the long-time recording mode being smaller than the data amount when the selected recording mode is the standard recording mode;an auxiliary data adding means for adding an auxiliary data to the data coded by the coding means in accordance with the recording mode set by the mode setting means,wherein the auxiliary data adding means comprises:an auxiliary data generating means for generating an auxiliary data in accordance with the recording mode set by the mode setting means;a control means for generating a control signal indicating a position to which the auxiliary data is inserted in accordance with the recording mode set by the mode setting means; andan auxiliary data inserting means for inserting the auxiliary data into the coded data at the insertion position indicated by the control signal, wherein a period of said inserted auxiliary data is a constant, said constant being independent of the recording mode, andwherein the auxiliary data includes an identification information indicating whether the recording mode is the standard recording mode or the long-time recording mode, and further information concerning a reproduction of an audio data or a video data other than the identification information; anda recording means for recording the data to which the auxiliary data is added on the recording medium.