Compensating method for writing power of optic disc device
A technology of an optical disc device and a compensation method, applied in the directions of optical recording/reproducing/erasing methods, beam sources, optical recording heads, etc., can solve the problems of increased cost and volume of the device, insignificant, etc., and achieve the effect of good power and compensation.
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[0025] Hereinafter, embodiments of the method for compensating the writing power of the optical disc device according to the present invention will be described in detail with reference to the accompanying drawings.
[0026] FIG. 2 is a schematic diagram showing an embodiment of the write power compensation method of the optical disc device according to the present invention. It is composed of the following parts: adding error error coding (ECC) to the input digital data to convert it into a digital writing signal processing device (DSP writing) 30a; The channel bit encoder (CB encoder) 40 that converts the data into a bit stream; the optical drive 41 that outputs a light quantity drive signal according to the input signal; according to this optical drive signal, writes the signal on the optical disc and writes The laser head 20 that detects the write signal on the input surface; the R / F device 50 that performs residual wave shaping of the write signal detected from the above-ment...
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