Data storage method and data storage device
US7331025B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Jul 25, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30148
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data storage method and device, input data having a pattern are divided into a plurality of fields. A first number of rectangles contained in each field of an original image of the pattern is calculated by dividing the field of the original image into one or plurality of rectangles. A second number of rectangles contained in each field of an inverted image of the pattern is calculated by dividing the field of the inverted image into one or plurality of rectangles. One of pattern data of the original image and pattern data of the inverted image which has a smaller number of rectangles is selected by comparing the first number of the rectangles in the original image with the second number of the rectangles in the inverted image. The pattern data selected for each field are stored in a recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.