Document with indexes and associated document reader system

Details Document with indexes and associated document reader system Document with indexes and associated document reader system

2011-03-22

2011-03-22

Franklin, Jamara A (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

Reexamination Certificate

active

07909254

ABSTRACT:
A document with indexes and associated document reader system. The document is constructed by printing plural pixels and divided into plural areas. Each of the areas has plural indexes respectively consisting of a group of indexing dots to represent an area code corresponding to the area. The indexes and the pixels have different optical reflection features. The system includes a filter, a pattern sensor and a pattern decoder. The filter allows a light with special wavelengths to pass through, so as to obtain a desired light corresponding to the indexes of the document. The sensor is connected to the filter for sensing the light passed through and accordingly forming a pattern to output. The decoder is connected to the sensor for decoding and thus obtaining corresponding indexes in accordance with the pattern outputted by the sensor.

REFERENCES:
patent: 6330976 (2001-12-01), Dymetman et al.

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