Circuit for tracking error signal detection on an optical...

Details Circuit for tracking error signal detection on an optical... Circuit for tracking error signal detection on an optical...

2006-09-26

2006-09-26

Ortiz-Criado, Jorge L. (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044410, C369S053230

Reexamination Certificate

active

07113461

ABSTRACT:
A circuit for tracking error signal detection on an optical storage medium, which has a plurality of digitizers, a plurality of logic comparators and a difference amplifier, is disclosed. The circuit involves summing the signals to be compared and obtaining a delay signal via a delayer. Therefore, the phase difference of the signals is detected via the delay signal to obtain the tracking error signal of the optical storage medium.

REFERENCES:
patent: 4583209 (1986-04-01), Bierhoff
patent: 6137755 (2000-10-01), Bakx et al.
patent: 6236628 (2001-05-01), Kim
patent: WO8605914 (1986-10-01), None

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