| US 7,483,047 B2 | ||
| Control method for marking label side of optical disc | ||
| Chih Wei Huang, Hsinchu (Taiwan); Tao-Yen Wei, Hsinchu (Taiwan); and Yi-Shih Wang, Hsinchu (Taiwan) | ||
| Assigned to Lite-On It Corp., Taipei (Taiwan) | ||
| Filed on Dec. 27, 2006, as Appl. No. 11/616,391. | ||
| Claims priority of application No. 95101501 A (TW), filed on Jan. 13, 2006. | ||
| Prior Publication US 2007/0165102 A1, Jul. 19, 2007 | ||
| Int. Cl. B41J 2/47 (2006.01); B41J 2/435 (2006.01); G11B 5/09 (2006.01); G11B 7/24 (2006.01) | ||
| U.S. Cl. 347—224 [347/225; 347/253; 347/262; 369/275.1; 369/275.3; 369/47.1] | 8 Claims |
| 1. A control method for marking a label side of an optical disc, comprising steps of:
generating an inner ring signal and an outer ring signal according to specific patterns formed on the label side of the optical
disc, wherein the specific patterns include a positioning pattern in an outer ring and a plurality of spokes in an inner ring;
starting timing when the outer ring signal reveals the end of the positioning pattern;
stopping timing and obtaining a timing value when the inner ring signal reveals the start of a square wave defining a specified
spoke;
defining a starting spoke according to the inner ring signal and the specified spoke;
calculating a deviation bit value according to the timing value and a bit number of a data to be marked on a certain track
of the optical disc; and
rotating the data according to the deviation bit value, and marking the rotated data on the certain track, starting with the
starting spoke.
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