Information record medium, apparatus for recording the same and apparatus for reproducing the same

An information recording medium to be reproduced by a reproducing apparatus, the information recording medium comprising:

• a plurality of processed partial record information blocks generated by applying a predetermined signal processing to record information including a plurality of partial record information blocks, each processed partial record information block including a plurality of information units;
• a plurality of reproduction units, each information unit comprising one or more of the reproduction units;
• and
• navigation information included in each of the corresponding reproduction units, the navigation information including recording position information indicating recording positions of a plurality of other reproduction units that belong to the same processed partial record information block, corresponding to a predetermined reproduction time of the partial record information blocks within a predetermined range before and after a respective one of the reproduction units on an axis of reproduction time of each of the partial record information blocks.

An information reproducing apparatus for reproducing information recorded on an information recording medium comprising:

• a plurality of processed partial record information blocks generated by applying a predetermined signal processing to record information including a plurality of partial record information blocks, each processed partial record information block including a plurality of information units;
• a plurality of reproduction units, each information unit comprising one or more of the reproduction units;
• and
• navigation information included in each of the corresponding reproduction units, the navigation information including recording position information indicating recording positions of a plurality of other reproduction units that belong to the same processed partial record information block, corresponding to a predetermined reproduction time of the partial record information blocks within a predetermined range before and after a respective one of the reproduction units on an axis of reproduction time of each of the partial record information blocks,
• the information reproducing apparatus comprising:
• detection and demodulation means for detecting and demodulating information recorded on the recording medium to thereby obtain a demodulation signal;
• extracting means for extracting the recording position information out of the demodulation signal;
• and
• control means for controlling reproduction of information on a basis of the extracted recording position information.

An information recording medium to be reproduced by a reproducing apparatus, comprising:

• a plurality of information blocks, each of which includes a plurality of interleaved units;
• a plurality of object units, each interleaved unit comprising one or more of the object units;
• and
• navigation information included in each of the corresponding object units and positioned at a forefront of each of the object units, wherein the navigation information includes recording position information indicating recording positions of a plurality of other object units that belong to the same information block within a predetermined range before and after an object unit in which the recording position information is included on an axis of reproduction time of an information block to which the object unit belongs.

An information reproducing apparatus for reproducing information recorded on an information recording medium comprising:

• a plurality of information blocks, each of which includes a plurality of interleaved units;
• a plurality of object units, each interleaved unit comprising one or more of the object units;
• and
• navigation information included in each of the corresponding object units and positioned at a forefront of each of the object units, the navigation information including recording position information indicating recording positions of a plurality of other object units that belong to the same information block within a predetermined range before and after an object unit in which the recording position information is included on an axis of reproduction time of an information block to which the object unit belongs, the information reproducing apparatus comprising:
• detection and demodulation means for detecting and demodulating information recorded on the recording medium to obtain a demodulation signal;
• extracting means for extracting the recording position information out of the demodulation signal;
• and
• control means for controlling reproduction of information on the basis of the extracted recording position information.