| US 7,350,118 B2 | ||
| Method and apparatus for recording information in concatenated manner | ||
| Koubun Sakagami, Kanagawa (Japan) | ||
| Assigned to Ricoh Company, Ltd., Tokyo (Japan) | ||
| Filed on May 26, 2005, as Appl. No. 11/137,382. | ||
| Claims priority of application No. 2004-157354 (JP), filed on May 27, 2004. | ||
| Prior Publication US 2005/0268180 A1, Dec. 01, 2005 | ||
| Int. Cl. G11B 7/006 (2006.01) | ||
| U.S. Cl. 714—701 [369/13.25; 714/775] | 26 Claims |
| 1. A method of recording data as presence/absence of marks on an information recording medium, comprising:
a step of obtaining data pieces, each of which has size of one block and is made by adding error-correction-purpose data to
information data;
a step of attaching to each of the data pieces a synchronizing signal that includes a portion having the marks and a portion
having no mark;
a step of recording the data pieces on the information recording medium in units of the one block inclusive of the synchronizing
signal; and
a step of placing a concatenation point at a predetermined position within the synchronizing signal when adding, or writing
in an overwriting manner, the data pieces in units of the one block, said concatenation point defining a position at which
said adding or said writing starts.
|