Patent · US Active

Locator

US9429672B2 · kind B2 · utility

1Cited by

9References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Tobias Zibold · Stuttgart, DE
Andrej Albrecht · Stuttgart, DE

Key dates

Filing date	Jun 19, 2012
Grant date	Aug 30, 2016
Priority date	—
Expiry date	Sep 14, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01V3/15
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A locator for capacitively sensing an object includes a transmission electrode to which an excitation signal can be applied, a reception electrode, a sensing region in the region of the transmission electrode and the reception electrode, and a measuring device for sensing a capacitance between the transmission electrode and the reception electrode. The locator further includes a processing device for determining the presence of the object in the sensing region if the sensed capacitance differs from a reference capacitance, and a screening electrode that is arranged in the region of the transmission electrode and the reception electrode. The screening electrode is connected to a potential so as to reduce the base capacitance between the transmission electrode and the reception electrode.

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