Patent ID: 7301866
Filing Date: 2007-11-27
Classification: G11B

Abstract:
1. An information reproducing apparatus for reproducing information recorded on an information recording medium, on which a record mark having a variable length according to first data is formed at a displaced position to which the record mark is displaced in a direction crossing a reading direction of the record mark according to a wobble signal obtained by modulating second data in a predetermined modulating method, said information reproducing apparatus comprising: a reading device for reading the record mark recorded on said information recording medium; a read signal generating device for generating a read signal for indicating the length of the record mark on the basis of an output signal from said reading device; a first clock signal generating device for generating a first clock signal on the basis of the read signal; a wobble signal generating device for generating a wobble signal for indicating the displaced position of the read mark on the basis of the output signal from said reading device; and a second data reproducing device for reproducing the second data from the generated wobble signal by using the first clock signal.