Physical identification data addressing method using wobble signal, wobble ...

(54) PHYSICAL IDENTIFICATION DATA

ADDRESSING METHOD USING WOBBLE
SIGNAL, WOBBLE ADDRESS ENCODING
CIRCUIT, METHOD AND CIRCUIT FOR
DETECTING WOBBLE ADDRESS, AND
RECORDING MEDIUM THEREFOR

(75) Inventors: Jung-wan Ko, Yongin (KR); In-sik

Park, Suwon (KR); Kyung-geun Lee,
Seongnam (KR); Du-seop Yoon, Suwon
(KR); Seong-sin Joo, Suwon (KR);
Jae-seong Shim, Seoul (KR);
Byoung-ho Choi, Suwon (KR);
Byung-in Ma, Suwon (KR); Yong-jin
Ahn, Seoul (KR); Tatsuhiro Otsuka,
Suwon (KR)

FOREIGN PATENT DOCUMENTS

(73) Assignee:

( * ) Notice:

Samsung Electronics Co., Ltd.,

Suwon-si (KR)

Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 314 days.

(21) Appl. No.: 09/704,654

(22) Filed: Nov. 3, 2000

(30) Foreign Application Priority Data

Nov. 3, 1999 (KR) 1999-48452

Mar. 25, 2000 (KR) 2000-15328

(51) Int. C I. G11B 7 00

(52) U.S. CI 369/59.25; 369/47.22;

369/44.13

(58) Field of Search 369/44.13, 59.25,

369/275.3, 47.22, 47.28, 47.1, 47.27

(56) References Cited

U.S. PATENT DOCUMENTS

6,377,537 Bl * 4/2002 Maeda et al 369/44.13

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 tracks are classified into odd groove tracks and even groove tracks. Address information indicating physical identification information is phase modulated using wobble signals having a predetermined phase difference between two adjacent groove tracks, and recorded in each groove track so that address information modulated using the wobble signals having the phase difference of 90° between adjacent two groove tracks can be a quadrature phase shift keying (QPSK) signal. Accordingly, a larger amount of data can be recorded on 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.

58 Claims, 10 Drawing Sheets