Proximity based gesturing devices, systems and methods

摘要

A device includes sensor substantially coplanar with one another in a sensor plane, each sensor generating a sense value that varies according to a physical distance between the sensor and an object. The device also includes control circuits configured to generate a first position value, a second position value, and a third value using the sense values in a first mode to detect a hover or glove operation by the object. The first position value and the second position values identify a two-dimensional position of the object in the sensor plane and the third value varies in response to movement of the object in a Z-direction substantially perpendicular to the sensor plane. The control circuits are also configured to generate a fourth position value and a fifth position value in a second mode to detect a touch operation by the object. The control circuits include a programmable integrated circuit including an analog portion and a digital portion.

主权项

1. A device comprising:
a plurality of sensors substantially coplanar with one another in a sensor plane, each sensor to generate a sense value, which varies according to a physical distance between that sensor and an object; and control circuits configured to generate a first position value, a second position value, and a third value using the sense values in a first mode to detect a hover or glove operation, the first position value and second position value identifying a two-dimensional position of the object in the sensor plane and the third value identifying a distance of the object in an axis substantially perpendicular to the sensor plane, wherein the control circuits are further configured to generate a fourth position value and a fifth position value using additional sense values from the plurality of sensors in a second mode to detect a touch operation, the fourth position value and the fifth position value identifying a second two-dimensional position of the object in the sensor plane, wherein the control circuits comprise a programmable integrated circuit comprising:
an analog portion configured to acquire the sense value at each sensor and convert the sense value to a numerical sensor count value; anda digital portion comprising arithmetic logic circuits configured to calculate the first position value, the second position value, and the third value from the numerical sensor count values in the first mode and to calculate the fourth position value and the fifth position value from the numerical sensor count values in the second mode.