Method and apparatus for preserving binary data
US7489818B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2004 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Mar 13, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for preserving binary data on an analog archival medium, such as microfilm, in which the binary data is encoded, such as in a barcode symbol, in accordance with a predefined encoding specification. The predefined encoding specification may be stored along with the binary data to facilitate subsequent recovery of the binary data, even if the encoding technique has become obsolete. Error detection and correction code may be generated for the binary data and stored along therewith. By comparing the error correction code associated with the original binary data with an error correction code generated based upon the recovered data, the accuracy of the recovered data may be confirmed. Corresponding methods and apparatus for recovering the binary data are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.