Patent ID: 7248554

Claim:
A laser driving apparatus for irradiating an optical recording medium with laser light outputted from a laser light source, the laser driving apparatus comprising: a photo detector for monitoring a laser power of the laser light source and generating a signal representative of the laser power; and a current supplying unit, to receive the signal representative of the laser power, which supplies a write level current, on which a strategy process is performed, the strategy process modulating the write level current into a waveform having a pectinate shape, to the laser light source when performing recording or rewriting of the data and which supplies an erase level current, on which the strategy process is performed, the strategy process modulating the erase level current into a waveform having a pectinate shape, to the laser light source when performing continuous erase of previously recorded data, wherein the erase level current is generated using a dummy EFM signal.