Optical disc recording and playback apparatus

Details Optical disc recording and playback apparatus Optical disc recording and playback apparatus

2011-01-11

2011-01-11

Chaudry, M. Mujtaba K (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C369S044280, C369S044340, C369S044410

Reexamination Certificate

active

07870463

ABSTRACT:
A DSP of a DVD recorder includes: a gain setting portion determining appropriate values of a first gain α and a second gain β when playback of an optical disc is performed, recording the first gain α and the second gain β thus determined in a gain storing portion, and setting them in a main differential amplifier and a sub differential amplifier, respectively; and a correction performing portion reading, when recording on the optical disc is performed, the first gain α and the second gain β stored in the gain storing portion, correcting at least one of them, and setting them in the main differential amplifier and the sub differential amplifier, respectively.

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