Patent ID: 9285892
Filing Date: 2016-03-15
CPC Classification: G06F

Claim Text:
1. A non-contact position sensing device, comprising: a plurality of transmission units provided in different positions, each being configured to transmit a signal; a receiving unit configured to receive the signals reflected by an object; and a control unit configured to calculate a position of the object based on received signals received by the receiving unit, wherein the control unit switches between intensity position calculation to calculate the position of the object based on intensities of the received signals without utilizing phase difference between the received signals, and phase position calculation to cause intensities of the signals from the transmission units to periodically change and calculate the position of the object based on phases of intensity changes of the received signals, based on the intensities of the received signals, and utilizes a result of only either one of the intensity position calculation and the phase position calculation to determine a single position of the object.