Patent ID: 8559288

Claim:
An optical disk recording device that records information corresponding to a recording signal onto a recording medium by using laser light, the optical disk recording device comprising: a recording pulse information generation unit that generates, from the recording signal, recording pulse information corresponding to a power level of the laser light; a recording code generation unit that generates a recording code by encoding the recording pulse information; a transmission line that transmits the recording code; and a decoded code generation unit that generates a decoded code by decoding the recording code transmitted, wherein the recording code generation unit generates the recording code based on a cyclic code representing each transition of the power level by using a Gray code, wherein the decoded code generation unit decodes the recording code using a recording code corresponding to a power level at a predetermined timing and a recording code corresponding to a power level immediately prior to the power level at the predetermined timing, and wherin the number of bits of the recording code is smaller than a square root of the number of power levels of the laser light.