Input system with stylus pen having two coils and elastic member

摘要

Discussed is an input system that includes a sensor panel including plural first and second channels intersecting each other, a stylus pen including a first core and a second core divided from each other, a primary coil and a secondary coil wound on the first and second cores, an elastic member interposed between the first core and the second core, a resonant capacitor and a switch connected to the secondary coil in series, and a conductive tip connected to the primary coil, a ground unit connected to the stylus pen, an antenna loop formed at the edge area of the sensor panel, and a touch controller connected to the first and second channels and the antenna loop.

主权项

1. An input system comprising:
a sensor panel including a plurality of first channels and a plurality of second channels which intersect each other; a stylus pen including a first core and a second core divided from each other, a primary coil and a secondary coil wound on the first and second cores, an elastic member interposed between the first core and the second core, a resonant capacitor and a switch connected to the secondary coil in series, and a conductive tip connected to the primary coil; a ground unit connected to the stylus pen; an antenna loop formed at the edge area of the sensor panel; and a touch controller connected to the first channels, the second channels, and the antenna loop.