Physical identification data addressing method using wobble...

Details Physical identification data addressing method using wobble... Physical identification data addressing method using wobble...

2007-05-29

2007-05-29

Hindi, Nabil (Department: 2627)

Dynamic information storage or retrieval

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

Control of information signal processing channel

C369S275300

Reexamination Certificate

active

10947361

ABSTRACT:
A physical identification data (PID) addressing method using a wobble signal, a wobble address encoding circuit, a method and circuit for detecting the wobble address and a recording medium therefor. Groove address information indicating physical identification information is phase modulated using a wobble clock signal and recorded in one of the two walls of a groove track, and land address information is phase modulated using a wobble clock signal obtained by shifting the phase of the former wobble clock signal and recorded in the other wall. That is, address information is phase modulated and recorded in each track using the wobbles having a phase difference of 90° between adjacent tracks so that a sum of wobble signals from the adjacent tracks can be a quadrature phase shift keying (QPSK) signal. Therefore, more data can be recorded in the recording medium, and since an interval in which a wobble signal disappears is not caused, recovery of a wobble clock signal can be advantageously performed.

REFERENCES:
patent: 6298021 (2001-10-01), Aoki
patent: 6434091 (2002-08-01), Kuribayashi
patent: 6549495 (2003-04-01), Sruit et al.
patent: 1195171 (1998-10-01), None
patent: 9279129 (1997-10-01), None
patent: 10143933 (1998-05-01), None
patent: 10-021555 (1998-10-01), None
patent: 10-312541 (1998-11-01), None
patent: 10312541 (1998-11-01), None
patent: 11007660 (1999-01-01), None
patent: 6208614 (2001-03-01), None
patent: 1098302 (2001-05-01), None
patent: 2001143273 (2001-05-01), None
U.S. Appl. No. 09/704,656, filed Nov. 3, 2000, Jung-wan Ko, Samsung Electronics Co., Ltd.

Affiliated with

Also associated with

Rating

Physical identification data addressing method using wobble... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Physical identification data addressing method using wobble..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical identification data addressing method using wobble... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3782945