Patent ID: 7434265
Filing Date: 2008-10-07
Classification: G06F,G11B,H04N

Abstract:
1. An information signal recording/reproducing system using a recording medium having formed thereon an area different from an area for recording information signals and in which medium-related information is recorded or having a unit accompanying the recording medium in which the medium-related information is recorded and including a recording device for recording the information signals on the recording medium and a reproducing device for reproducing the information signals recorded on the recording medium, the recording device comprising: recording-side medium-related reading means for reading the medium-related information from one of the recording medium and the unit accompanying the recording medium; information adding means for adding the medium-related information read by the recording-side medium-related information reading means to the information signals; and recording means for recording the information signals to which the medium-related information has been added by the information adding means on the recording medium; the reproducing device comprising: reproducing-side medium-related information reading means for reading the medium-related information from one of the recording medium and the unit accompanying the recording medium; information signal reading means for reading the information signals from the recording medium; detecting means for detecting the medium-related information added to the information signals in the information signals read by the information signal reading means; determining means for determining whether the medium-related information from the reproducing-side medium-related information reading means is consistent with the medium-related information detected by the detecting means; and control means for prohibiting the reproduction of the information signals if the medium-related information from the reproducingside mediumrelated information reading means is not consistent with the medium-related information detected by the detecting means, wherein said information adding means comprises means for providing first code, and means for superimposing the medium-related information from the recordingside medium-related information reading means using said first code, and said detecting means comprises means for providing second code identical with said first code, and means for detecting the medium-related information superimposed on the information signal by processing a detecting process using said second code.