Patent ID: 6871007
Filing Date: 2005-03-22
Classification: G11B,H04N

Abstract:
1. An apparatus comprising: input means for receiving a digital information signal; processing means for processing the digital information signal into an information file including a sequence of sections including fixed size portions of information; writing means for writing the information file on a record carrier; means for generating characteristic point information, the characteristic point information identifying a characteristic point in the information file; means for processing the characteristic point information for a plurality of characteristic points into a characteristic point information (CPI) sequence including for a characteristic point, a block of information including section offset information identifying the position of the characteristic point in the section of the information file in which the characteristic point is located; and means for recording the characteristic point information sequence on the record carrier, wherein the blocks of information in the CPI sequence have lengths of one or more quadlets; and wherein, if a block of information has only one quadlet, then a first bit in the quadlet is a bit of a first binary type, and if the block of information has more than one quadlet, then the first bit of the first quadlet is a bit of a second binary type and the first bit of the last quadlet is a bit of the first binary type.