Various embodiments of the present technology may provide methods and apparatus for water detection using a capacitive sensor. A door handle apparatus may include a first sensor and a second sensor positioned to detect water flowing across the sensors. Each sensor may comprise a first electrode, a second electrode, wherein each sensor operates independently.

Various aspects include wearable audio devices. In some particular implementations, a wearable audio device includes: an acoustic transducer having a sound-radiating surface for providing an audio output; a controller coupled with the acoustic transducer; a printed circuit board (PCB) coupled with the controller; and a capacitive touch interface coupled with the PCB, the capacitive touch interface having: a contact surface for receiving a touch command; and a set of at least two electrodes underlying the contact surface for detecting the touch command at the contact surface, where neighboring electrodes in the set share a border having an arcuate profile across the contact surface or a piecewise profile approximating a non-linear path across the contact surface.

A determination is made as to whether touch pressure data acquired from each of a plurality of touch pressure sensors is indicative of abnormal operation. If abnormal operation is indicated, the touch pressure data from each of the plurality of touch pressure sensors, except those touch pressure sensors having touch pressure data indicative of abnormal operation, is summed. Then, the sum is multiplied by a correction factor to produce a touch pressure output indicative of physical force applied to the plurality of touch pressure sensors.

A proximity sensor is arranged with a first electrode input with a first signal, a second electrode input with a second signal different from the first signal, a third electrode arranged closer to the first electrode than the second electrode, and the second signal has a reverse phase of the first signal.

A device includes a touch and pressure sensitive screen having touch pressure sensors and a controller. The controller acquires touch pressure data from the plurality of touch pressure sensors. For each touch pressure sensor, the controller determines whether the touch pressure data from that touch pressure sensor is indicative of abnormal operation of that touch pressure sensor. Where no abnormal operation is indicated, the controller sums the touch pressure data from each of the touch pressure sensors to produce a touch pressure output. Where abnormal operation is indicated, the controller sums the touch pressure data from each of the touch pressure sensors and multiply the sum by a correction factor to produce the touch pressure output.

A detection device including: a measurement electrode, and a second electrode separated from one another by a distance (D) that is elastically modifiable locally, by a load exerted by an object on a detection surface, and a controller arranged in order to: connect the electrodes to an alternating guard potential (V.sub.g) in order to measure a capacitance representing an approach and a contact; and connect the second electrode to a second potential a second potential proportional to the guard potential (V.sub.g) and having a different amplitude, or to the ground potential (G), in order to measure a capacitance representing a pressure. Also provided is a detection method utilizing such a detection device.

A proximity sensor is arranged with a first electrode input with a first signal, a second electrode input with a second signal different from the first signal, a third electrode arranged closer to the first electrode than the second electrode, and the second signal has a reverse phase of the first signal.

An input apparatus according to an embodiment of the present technology includes an operation member, an electrode substrate, and a first support. The operation member includes a plurality of key regions and is configured to be deformable. The electrode substrate includes a first capacitive element arranged opposed to each of the plurality of key regions and a second capacitive element arranged around the first capacitive element. The electrode substrate is capable of electrostatically detecting a change of a distance from each of the plurality of key regions. The first support includes a plurality of first structures and a first space. The plurality of first structures connect between the electrode substrate and the operation member. The first space is formed between the plurality of first structures and capable of changing the distance between each of the plurality of key regions and the electrode substrate according to an input operation.

A proximity sensor is arranged with a first electrode input with a first signal, a second electrode input with a second signal different from the first signal, a third electrode arranged closer to the first electrode than the second electrode, and the second signal has a reverse phase of the first signal.

A sensor for detecting a target in a non-contact manner includes a first electrode; a second; a third electrode that is disposed between the first electrode and the second electrode; and a determination circuit that, in operation, detects entry of the target into a first region by detecting a change of first electrostatic capacitance, which is electrostatic capacitance of the first electrode, and detects entry of the target into a second region by detecting a change of second electrostatic capacitance, which is electrostatic capacitance of the second electrode. An electric potential of the third electrode is more negative than electric potentials of the first electrode and the second electrode. At least a part of the second region at least partially surrounds an outer edge of the first region in plan view.