| 摘要 |
PROBLEM TO BE SOLVED: To provide a data format of a digital video disk. SOLUTION: A digital video disk stores data codes and multifunctional synchronization codes in a data structure. The synchronization codes contain type information code identifying whether the synchronization code is located in a code sequence at the beginning of the data block, the beginning of the data block sector other than the first sector in the data block, the beginning of a line or the middle of a line. The type information is expressed by two alternative patterns expressing the same information and differing in the number of 1s in the 5-bit sequence, i.e., an odd or even number of 1s. Which one of the two type information code patterns is used is selected according to a DSV value so as to minimize bias in the dc component of the frame following the synchronization code. COPYRIGHT: (C)2007,JPO&INPIT
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