FIELD: information technologies.
SUBSTANCE: multilayer optical data medium of ROM-, WORM- and RW-type provides possibility to overlap simultaneously fluorescent and reflective data recording and (or) reading principles in one layer. In such medium information is recorded as pits of various depths in two neighboring interleaved spiral tracks or in one and the same track. Reading of information is performed consequently, i.e. for example fluorescent signal only is read first, then - reflective signal only; or simultaneously by two optical heads: reflective and fluorescent signals are read.
EFFECT: increase in density and volume of recorded information.
33 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITE MARK | 2008 |
|
RU2431193C2 |
| OPTICAL RECORD MEDIUM AND METHOD FOR DATA READING OFF OPTICAL RECORD MEDIUM | 2001 |
|
RU2195026C1 |
| MULTILAYER WRITTEN DOWN OPTICAL INFORMATION CARRIER WITH CALIBRATION ZONE OF OPTIMUM POWER, METHOD AND DEVICE FOR FORMATION OF CALIBRATION ZONES OF OPTIMUM POWER ON SUCH INFORMATION CARRIER | 2004 |
|
RU2348987C2 |
| OUTPUT RANGE RECORD MODE | 2004 |
|
RU2340961C2 |
| MULTILAYER OPTICAL DISC HAVING DISC INFORMATION | 2004 |
|
RU2403629C2 |
| DATA CARRIER, RECORDING DEVICE AND READING DEVICE | 2001 |
|
RU2280290C2 |
| INFORMATION CARRIER, RECORDING DEVICE AND READING DEVICE | 2001 |
|
RU2277267C2 |
| MULTILAYER OPTICAL DISC HAVING RECORDING STACK TYPE INDICATOR | 2003 |
|
RU2449389C2 |
| MULTILAYER OPTICAL DISC HAVING STACK TYPE INDICATOR | 2003 |
|
RU2324238C2 |
| DATA CARRIER AND METHOD OF RECORDING THEREON | 2005 |
|
RU2343568C2 |
