SYNCHRONOUS FRAME STRUCTURE, INFORMATION STORAGE MEDIUM, INFORMATION RECORDING METHOD, INFORMATION REPRODUCING METHOD AND INFORMATION REPRODUCING DEVICE, BASED ON AN INFORMATION RECORDING FORMAT(SYNCHRONOUS FRAME STRUCTURE) USING AN IMPROVED SYNCHRONOUS FRAME

摘要

PURPOSE: A synchronous frame structure, an information storage medium, an information recording method, an information reproducing method and an information reproducing device are provided to include more than one synchronous frame in at least one of sectors, and to include plural synchronous codes in at least one of the synchronous frames, thereby simplifying a position detection of the synchronous codes and improving detection reliability of the codes. CONSTITUTION: The first patterns(ex, synchronous code numbers '2', '1', and '0' in a synchronous frame number '00') consist of a combination of 3 continuous synchronous codes. The second patterns(ex, synchronous code numbers '1', '0', and '1' in a synchronous frame number '01') shift an arrangement of the synchronous codes of the first patterns by 1. When the first patterns are compared with the second patterns, more than two synchronous codes are changed.