Abstract: Method and device for determining a position of a target is disclosed herein. In a described embodiment, the method includes sequentially directing each of a plurality of lighting patterns at the target, each lighting pattern comprising a plurality of illuminations from respective ones of a plurality of emitters, receiving, at a plurality of sensors, reflected illumination of each lighting pattern as reflected from the target; and determining the position of the target using the reflected illuminations of the lighting patterns and a first classifier previously trained to associate the reflected illuminations to a position of the target. In the method, each lighting pattern differs from other lighting patterns by at least an intensity of one of the illuminations; and the intensity of the illumination from at least one emitter is variable between more than two levels. A method of training a classifier for use in the method is also disclosed.

Abstract: According to various embodiments, a system may be provided. The system may include: a platform including a plurality of engaging members; a portable device configured to engage with the platform using at least one engaging member of the plurality of engaging members; and a feedback member configured to provide information indicating whether the portable device is engaged with the platform.

Abstract: According to various embodiments, a gesture recognition device may be provided. The gesture recognition device may include: a plurality of emitters, each emitter configured to emit a signal; at least one receiver configured to receive signals emitted by the plurality of emitters; a controller configured to control the plurality of emitters to subsequently emit signals in a plurality of patterns of a first subset of the plurality of emitters emitting a signal and a second subset of the plurality of emitters not emitting a signal; and a gesture recognition circuit configured to determine a gesture of a user of the input device based on the signals received by the at least one receiver.