Acting track-crossing during tracking error adjust

Details Acting track-crossing during tracking error adjust Acting track-crossing during tracking error adjust

2011-08-16

2011-08-16

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044290, C369S044280, C369S044340, C369S044360

Reexamination Certificate

active

08000186

ABSTRACT:
A method for enhancing the optical initializing operation comprises: sending a radial error signal from an optical pick-up unit to a radial error signal calibration unit; sending the radial error signal from the optical pick-up unit to an offset adjuster; sending a calibrated radial error signal from the radial error signal calibration unit to the offset adjuster and a gain adjuster; sending a radial actuator (RA) signal from the radial error signal calibration unit to activate a radial actuator during an initialization or a period for calculating RE signal calibrating parameters.

REFERENCES:
patent: 5289447 (1994-02-01), Kobayashi et al.
patent: 5532990 (1996-07-01), Koyama et al.
patent: 6157601 (2000-12-01), Kao et al.
patent: 6442111 (2002-08-01), Takahashi et al.
patent: 6452879 (2002-09-01), Tsukahara et al.
patent: 2002/0196717 (2002-12-01), Masui et al.

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