Apparatus for and method of detecting phase difference...

Details Apparatus for and method of detecting phase difference... Apparatus for and method of detecting phase difference...

2006-05-16

2006-05-16

Edun, Muhammad (Department: 2656)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

C369S059190, C369S044130, C369S059100

Reexamination Certificate

active

07046598

ABSTRACT:
An apparatus which records/reproduces data with respect to an optical recording medium, includes a data processing unit which detects a phase difference between a phase reference signal and a groove wobble signal detected from the optical recording medium, and compensates for the phase difference and performs a signal processing to record data on or reproduce data from the optical recording medium in response to the phase difference being equal to or greater than a predetermined reference value. By detecting a phase difference between a phase reference signal and a wobble signal and compensating for the phase difference, a recording of data on and a reproducing of data from the optical recording medium can be more accurately performed.

REFERENCES:
patent: 6570831 (2003-05-01), Choi
patent: 10-293926 (1998-11-01), None
Korean Office Action issued Oct. 28, 2004 in corresponding Korean Patent Application.

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