Patent · US Expired

Measuring instrument and method for optical measurement of velocity and direction of particles

US7283651B2 · kind B2 · utility

1Cited by

8References

10Claims

0Family size

Assignee

IDEX ASA · NO

Inventors

Ovidiu Vermesan · Kongsberg, NO
Jon Nysaether · Oslo, NO
Ib-Rune Johansen · Oslo, NO
Jon Tschudi · Oslo, NO

Key dates

Filing date	Jun 8, 2001
Grant date	Oct 16, 2007
Priority date	—
Expiry date	Nov 18, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG06V40/1306
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Sensor chip, especially for measuring of structures in a finger surface, characterized in that it comprises an electronic ship being in a per se known way provided with a number of sensor electrodes for capacitance measurements, the chip being provided with a first layer comprising a metal or another electrically conducting material over and coupled to the sensor electrodes and a first dielectric layer substantially covering the first metal layer.

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