Encoding and decoding method for microdot matrix
US8708237B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Feb 16, 2009 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Jun 15, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06037
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data region of each microdot block on a microdot matrix, a coordinate of each the microdot block on the microdot matrix is encoded into a plurality of microdots included by the data region according to an encoding method based on Reflected Gray codes. With the aid of a unique changed bit between any two consecutive Reflected Gray codes, an estimated coordinate of a frame, which is fetched by scanning the microdot matrix, on the microdot matrix, may still be decoded even if no complete microdot block is fetched within the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.