Microchip Technology Germany Gmbh

Ident Technology Ag

Microchip Technology Germany Gmbh II & Co. Kg

Neodron Limited

Reinhard Unterreitmayer

Claus Kaltner

Holger Steffens

Stefan Donat

An electrode device for a capacitive sensor device and a circuit arrangement for a capacitive sensor device for the operation of an electrode device are provided, wherein the electrode device has a first electrode structure with at least one transmitting electrode and at least one receiving electrode, and a second electrode structure with at least one field sensing electrode, wherein the electrode device or the capacitive sensor device can be operated in a first operation mode and in a second operation mode. In addition a method is provided for approach and/or touch detection with a sensor device.

Electrode device, circuit arrangement and method for the approach and touch detection

An electrical hand-held device is provided with improved proximity detection, which can be placed on a surface and has at least one transmission electrode, at least one reception electrode and at least one compensation electrode arranged between transmission electrode and reception electrode. The transmission electrode and the compensation electrode can be supplied with an electric switching signal of predetermined signal frequency and predetermined signal amplitude. Switching electric signal at the compensation electrode is phase-delayed with respect to the switching electric signal at the transmission electrode. Alternating electric fields radiated at the transmission electrode and the compensation electrode generate a current in the reception electrode, which is representative of an approach of a hand to the hand-held device. The transmission electrode and the reception electrode are arranged in such a way, that the impedance between the transmission electrode and the reception electrode exceeds a predetermined value, which is suitable to keep the current generated in the reception electrode under a predetermined value.

Sensor device and method for grip and proximity detection

An electrical hand-held device is provided with improved proximity detection, which can be placed on a surface and has at least one transmission electrode, at least one reception electrode and at least one compensation electrode arranged between transmission electrode and reception electrode. The transmission electrode and the compensation electrode can be supplied with an electric switching signal of predetermined signal frequency and predetermined signal amplitude. Switching electric signal at the compensation electrode is phase-delayed with respect to the switching electric signal at the transmission electrode. Alternating electric fields radiated at the transmission electrode and the compensation electrode generate a current in the reception electrode, which is representative of an approach of a hand to the hand-held device.; The transmission electrode and the reception electrode are arranged in such a way, that the impedance between the transmission electrode and the reception electrode exceeds a predetermined value, which is suitable to keep the current generated in the reception electrode under a predetermined value.

Electrode system for proximity detection and hand-held device with electrode system

A device for an electric hand-held device for detecting the hand-held device being clasped by a hand, has at least one transmitting electrode, which can emit an alternating electric field, and at least one receiving electrode, in which the alternating electric field can be coupled at least partially, wherein the at least one transmitting electrode and the at least one receiving electrode can be arranged on the hand-held device such that each of them is at least partially covered by the hand when the hand-held device is being clasped by the hand. When the hand-held device is being clasped by the hand, a first portion of the alternating electric field emitted by the transmitting electrode can be coupled via the hand into the receiving electrode, wherein at least the first portion of the alternating electric field is a characteristic representative of the hand-held device being clasped by the hand.

Device and method for detecting a clasping of a hand-held device by a hand

A sensor device is provided, with a first electrode structure and a second electrode structure, wherein the first electrode structure has a transmitting electrode, a compensation electrode and a reception electrode and wherein the second electrode structure has a number of field sensing electrodes. The first and the second electrode structure are coupled with an evaluating device. The evaluating device has a signal generator for supplying the transmitting electrode and the compensation electrode with an alternating electrical signal. The reception electrode, the transmitting electrode, the compensation electrode and the field sensing electrodes are arranged in relation to each other in such a way that a first alternating electrical field emitted at the transmitting electrode may be coupled into the reception electrode and into one of the field sensing electrodes and a second alternating electrical field emitted at the compensation electrode may be coupled substantially only into the reception electrode.

An electrical hand-held device with proximity detection can be placed on a surface and has at least one transmission electrode, at least one reception electrode, and at least one compensation electrode between the transmission and reception electrodes. The transmission and compensation electrodes can be supplied with electric switching signals of predetermined frequency and amplitude. The electric switching signal at the compensation electrode is phase-delayed with respect to the electric signal at the transmission electrode. Alternating electric fields radiated at the transmission and compensation electrodes generate in the reception electrode a current that is representative of an approach of a hand to the hand-held device. The transmission and reception electrodes are arranged such that the impedance between the transmission and the reception electrodes exceeds a predetermined value suitable to keep the current generated in the reception electrode under a predetermined value.

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Gauting, Germany

Reinhard Unterreitmayer