Apparatus and method for controlling optical recording power in an optical drive

Abstract

An optical recording power controlling apparatus and method, in which the determination conditions for received Non Return to Zero Inverted (NRZI) data and the varying range of the optical recording power level are set depending on the multiple-speed of recording and the type of an optical medium, and the varying range of the optical recording power level is controlled so that optical recording power provided to a light emitting device is optimal for the multiple-speed of recording and the type of an optical medium. In the optical recording power controlling apparatus, a system control unit sets the discrimination conditions of received data to be recorded and the varying range of the optical recording power level, depending on the multiple-speed of recording and the type of an optical medium. An optical recording power generator varies the level of optical recording power to be provided to the light emitting device according to the range of the optical recording power level and the result of the discrimination of the received data made under the discrimination conditions.

Dependencies are inferred from the claim text.