| US 7,474,840 B2 | ||
| Data recording apparatus for managing content when content is deleted | ||
| Motoki Kato, Kanagawa (Japan); and Toshiya Hamada, Saitama (Japan) | ||
| Assigned to Sony Corporation, Tokyo (Japan) | ||
| Appl. No. 10/275,571 PCT Filed Nov. 20, 2001, PCT No. PCT/JP01/10146 § 371(c)(1), (2), (4) Date May 22, 2003, PCT Pub. No. WO02/075739, PCT Pub. Date Sep. 26, 2002. |
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| Claims priority of application No. 2001-065074 (JP), filed on Mar. 08, 2001. | ||
| Prior Publication US 2005/0025459 A1, Feb. 03, 2005 | ||
| Int. Cl. H04N 5/91 (2006.01) | ||
| U.S. Cl. 386—124 [386/95; 386/105; 386/45; 386/125] | 10 Claims |
| 1. A data recording apparatus for recording a data stream including an array of packets onto an information recording medium,
comprising:
first detection means for detecting reference-time information of said data stream;
first generation means for generating:
first continuity information representing continuity of first time information generated on the basis of a detection result
produced by said first detection means;
second continuity information representing continuity of second time information showing arrival times of said packets;
identification information for identifying a first packet array including no discontinuity of said first time information;
and
an offset value of said identification information offset value added for each second packet array including no discontinuity
of said second time information; and
recording means for recording said first continuity information, said second continuity information and said offset value
onto said information recording medium.
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