DIGITAL MODULATION METHOD, DIGITAL MODULATION DEVICE, RECORDING METHOD, RECORDING MEDIUM, DIGITAL DEMODULATION METHOD, AND DIGITAL DEMODULATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a digital modulation method capable of performing recording of higher density by achieving encoding efficiency higher than modulation encoding proposed in the conventional practice, a digital modulation device, a recording method, a recording medium, a digital demodulation method, and a digital demodulation device.SOLUTION: A 7-bit data word is converted into a 13-bit code word in which the minimum value of the number of continuous 0s sandwiched by 1 and 1 of a bit string of the converted code word is 2.