Storing data on a medium in an optical system
US6411580B1 · kind B1 · utility
4Cited by
94References
57Claims
0Family size
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Oct 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2525
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An encoder converts a binary data word to a binary code word. The encoded bits have first and second binary values at a predetermined clock interval. A pulse generator responds to the encoded bits to generate energizing pulses during each clock interval in which the encoded bits have the first binary value. The energizing pules have a uniform duration less than the clock interval. A laser responds to the energizing pulses for recording on a medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.