Touching An Antenna Of A Near Field Communications (NFC) Device To Control Its Operation

摘要

A near field communications (NFC) device is disclosed that interacts with other NFC devices to exchange information and/or the data. An operator may touch, or be sufficiently proximate to, an antenna module of the NFC device to operate and/or control the NFC device. The antenna module includes antenna components that are characterized by a corresponding characteristic impedance. The touch, or sufficient proximity, of the operator changes the corresponding characteristic impedance of antenna components. The NFC device may determine a location of the touch, or proximity, of the operator based upon this change. The NFC device may interpret the location of the touch, or proximity, of the operator as information from the operator to operate and/or control the NFC device.

主权项

1. A communication device including an antenna module having a plurality of geometric shapes coupled in series, comprising:
a signal metric measurement module configured to determine a first signal metric of a signal induced onto the antenna module by a second communication device, the signal metric changing from a first metric value to a second metric value in response to an operator being sufficiently proximate to a geometric shape from among the plurality of geometric shapes; and a controller module configured to determine the geometric shape that is sufficiently proximate to the operator based upon a change between the first signal metric and a second signal metric.