Capacitive coupling of an RFID tag with a touch screen device acting as a reader

摘要

Capacitive coupling of an RFID tag with a touch screen device acting as an RFID reader, and methods to produce a capacitive coupling tag. A capacitive coupling tag, which communicates at near field distance with a host computing device by using the touch screen display of the host when the tag is placed on the touch screen or held in contact in close proximity to the touch screen by a person acting as a ground electrode and thereby causing a difference in electrical potential. A capacitive coupling tag which operates with or without a chip.

主权项

1. An RFID tag comprising:
an inductive coupling antenna combined with a capacitive coupling antenna and energizing a single RFID integrated circuit when in an electrostatic field or an electromagnetic field generated by a touch screen device or an RFID reader.