Patent ID: 6625095
Filing Date: 2003-09-23
Classification: G11B

Abstract:
An optical disc writing apparatus that is connectable to a host system and that reads data from a first optical disc, supplies the read data to said host system, and writes data supplied from said host system in a second optical disc, said optical disc writing apparatus comprising:a pickup for reading data out of said first optical disc to produce a radio frequency (RF) signal, and writing, in response to a laser driving signal, data in said second optical disc; a radio frequency (RF) amplifier for amplifying the RF signal to produce an amplified signal; a binary coding circuit for binary coding the amplified signal to produce a binary coded signal; a strategy adding circuit for adding a strategy to an eight to fourteen modulation (EFM) modulated signal supplied from said host system to produce a strategy added signal; and a laser driver for.producing said laser driving signal in response to the strategy added signal, wherein said optical disc writing apparatus supplies the binary coded signal to said host system; wherein said optical disc writing apparatus controls said host system to carry out, by using said software, an EFM demodulating processing for EFM demodulating the binary coded signal to produce EFM demodulated data and a decoding processing for decoding the EFM demodulated data, and said optical disc writing apparatus controls said host system to carry out, by using said software, an encoding processing for encoding user data to be written to produce encoding processed data and an EFM modulating processing for EFM modulating the encoding processed data to produce the EFM modulated signal; and wherein said optical disc writing apparatus receives the EFM modulated signal from said host system.