Optical information recording medium
US6628602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Feb 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical information recording medium having a lead-in area complying with the PW (Packet Writing) format and such a lead-in area is pre-recorded with a lead-in information prior to any recording. At a second time recording session, the end of recording information is only recorded in an address block for a last packet #2, and the end of recording information in an address block for a packet #1 which becomes the last packet at a first time recording session is made to be non-readable. At a third time recording session, a packet with an address block, wherein the end of recording information is recognized, is determined to be the last packet #2 and the recording starts from the packet #3, so that the information recorded in the medium before finalization can be lead-out by a CD-ROM disc drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.