RECORDING DEVICE, PLAYBACK DEVICE, AND DISC MEDIUM

• Main Authors: KOBAYASHI SHOEI, KOBAYASHI NOBUYOSHI, IIMURA SHINICHIRO, YAMAGAMI TAMOTSU
• Format: Patent
• Language: English
• Published: 01.09.2011
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

PROBLEM TO BE SOLVED: To rapidly and accurately access an optional address. SOLUTION: In a step S1, an address generation block generates and pre-encodes address information composed of a synchronization signal, address data, and an error correction code of the address data which are to be recorded on an optical disc and outputs them to a modulation block. Simultaneously with this, a carrier signal generation block generates a carrier signal for carrying the address information and outputs it to the modulation block. In a step S2, the modulation block MSK-modulates the carrier signal input from the carrier signal generation block with the pre-encoded address information input from the address generation block and the obtained MSK-modulated signal is output to a wobble formation block. In a step S3, the wobble formation block forms on the optical disc a spiral groove wobbled in accordance with the MSK-modulated signal input from the modulation block. COPYRIGHT: (C)2011,JPO&INPIT