US 7,593,312 B2
Method and apparatus for reproducing information
Junichiro Tonami, Yokohama (Japan); and Takayuki Ohki, Yokosuka (Japan)
Assigned to Victor Company of Japan, Ltd., Yokohama (Japan)
Filed on Feb. 16, 2006, as Appl. No. 11/354,900.
Application 11/354900 is a division of application No. 10/456610, filed on Jun. 09, 2003, granted, now 7,050,373.
Claims priority of application No. 2002-172102 (JP), filed on Jun. 12, 2002.
Prior Publication US 2006/0133243 A1, Jun. 22, 2006
Int. Cl. G11B 7/00 (2006.01)
U.S. Cl. 369—275.3  [369/275.1; 369/47.48; 369/47.28; 369/59.19] 8 Claims
OG exemplary drawing
 
1. A recording medium storing an information signal divided into a plurality of blocks each including “m” sectors, each of the sectors being divided into “n” frames having a length corresponding to a prescribed number of clock periods, “m” and “n” denoting natural numbers equal to or greater than 2, each of the frames including a sync signal having a pattern selected from a plurality of different patterns, each of the blocks including a first special signal in a position before a first sector, each of the blocks including a second special signal in a position after a last sector, the second special signal having a pattern equal to one of the different patterns for the sync signal, each of the sectors including a special pattern signal.