Hierarchically multiplexed optical recording system for storage of digital data
US5038335A · kind A · utility
1Cited by
1References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jun 12, 1990 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Jun 12, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H1/26
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for converting a series of discrete units of incoming digital data into a set of integer values and representing said values holographically, by dimensionalizing multiple aspects of reference laser signal, and multiplexing said aspects at the same storage location. The integer set is represented logarithmically by manipulating the dimensionalized aspects in a hierarchical order, resulting in a 16-fold increase in data density at the same physical storage location, as compared with a conventional binary storage system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.