System and method for placement and retrieval of embedded information within a document
US7481374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Jan 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/103
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for the placement and retrieval of embedded data blocks within a document includes converting a document into a bitmap image; calculating a total area required to embed information; analyzing the bitmap image for areas for placement of at least one embedded data block; calculating a total available area in the bitmap image to embed the information; dividing the information to encode into data packets; determining a location on the bitmap image to place at least one embedded data block; storing coordinate information for the location of the at least one embedded data block; creating a decoding protocol for at least one embedded data block; encoding the data packets and the decoding protocol into at least one embedded data block; and creating a bitmap image of at least one embedded data block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.