Patent · US Expired

Image acquisition apparatus

US6611614B1 · kind B1 · utility

4Cited by

5References

7Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Stefan Jung · Hersbruck, DE
Roland Thewes · Puchheim, DE
Werner Weber · Munich, DE

Key dates

Filing date	Jun 19, 2000
Grant date	Aug 26, 2003
Priority date	—
Expiry date	Oct 13, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG06V40/1347
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Sensor elements are arranged in a hexagonal grid. A processor element in the form of a primitive automaton is assigned to each of the sensor elements in the grid. The processor elements are set up to perform algorithms which enable lines of a fingerprint to be simplified such that characteristic minutiae of the fingerprint (endings and branchings of the lines) can be extracted. The processor elements are embodied using CMOS/Neuron MOS threshold value logic or using CMOS/NMOS pass transistor logic. The image grid can be read out via read-out circuits as a matrix.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.