1
Atsushi Kikugawa: Offset compensator and optical disc drive using the same. Hitachi, Hitachi LG Data Storage, Mattingly & Malur PC, January 3, 2012: US08089845

The generation of a pseudo-lock is prevented in a JFB offset compensator whose use has been conventionally limited due to a tendency to generate the pseudo-lock, and performance degradation of a PLL and a Viterbi decoder is suppressed. A means for monitoring an offset of a read signal is provided in ...


2
Kikugawa Atsushi: Offset compensator and optical disc drive using the same. Hitachi, Hitachi LG Data Storage, May 20, 2009: EP2061031-A2

The generation of a pseudo-lock is prevented in a JFB offset compensator whose use has been conventionally limited due to a tendency to generate the pseudo-lock, and performance degradation of a PLL and a Viterbi decoder is suppressed. A means for monitoring an offset of a read signal is provided in ...


3
Atsushi KIKUGAWA: Offset compensator and optical disc drive using the same. Mattingly & Malur PC, May 28, 2009: US20090135699-A1

The generation of a pseudo-lock is prevented in a JFB offset compensator whose use has been conventionally limited due to a tendency to generate the pseudo-lock, and performance degradation of a PLL and a Viterbi decoder is suppressed. A means for monitoring an offset of a read signal is provided in ...