Circuit for wobble demodulation

摘要

Disclosed is a circuit for wobble demodulation from a signal obtained from an optical recording medium. The circuit is provided with a digital demodulator (1) for demodulating a wobble signal including at least one inverted wobble (NW) from a signal obtained from an optical recording medium, which is not a suppressed carrier signal, and a Costas loop correction block (10) for the inverted wobbles. <IMAGE>