Patent ID: 7054244
Filing Date: 2006-05-30
Classification: G11B

Abstract:
1. A modulated signal generator for generating a modulated signal for producing an optical disc master, comprising: information reproducing means for reading and reproducing predetermined information data to be recorded on said optical disc master from a master medium having recorded therein said predetermined information data; modulation processing storing means having stored therein plural modulation processing programs constituting signal modulation processing units such as an interleave process, generation process of Reed-Solomon codes, generation process of sub-codes, 8–14 conversion process, 8–16 conversion process, or digital sum value process; modulation controller means for carrying out modulated signal processing, based on one of the modulation processing programs, selected in accordance with the predetermined information data reproduced by said information reproducing means to generate a modulated signal data stream; and modulated signal output means for outputting the modulated signal data stream generated by said modulation controller means at a predetermined clock.