| 摘要 |
<p>A touch sensor and RFID apparatus is described. In one implementation, the apparatus includes a passive RFID module disposed proximate to a touch panel, and a control module configured to receive an electrical signal from the passive RFID module. The apparatus may be configured to determine, based on a characteristic of the electrical signal, whether the passive RFID module has been energized by an RFID reader or, in the alternative, has exhibited an impedance change as a result of contact being made with the touch panel. The apparatus may also be configured to operate in a first mode if the passive RFID module is determined to have been energized by an RFID reader, or, in the alternative, operate in a second mode if the passive RFID module is determined to have been energized as a result of contact being made with the touch panel. Additionally, the control module can read from or write to the passive RFID module via direct electrical excitation over a wire or wires connecting the passive RFID module to the control module.</p> |
