Stylus pen
AssigneeHiDeep Inc.
InventorsSeyeob Kim, Hyoungwook Woo, Kiryoung Jung, Bonkee Kim
Life of this patent
Estimating the term…
Abstract
An exemplary embodiment of the present invention provides a stylus pen including: a body; a conductive tip configured to be exposed from an inside of the body to an outside thereof; and a resonance circuit connected to the conductive tip to resonate an electrical signal transferred from the conductive tip. An inductor unit of the resonance circuit includes a ferrite core and a coil wound in multiple layers over at least a portion of the ferrite core. The ferrite core includes nickel, and the coil can be formed by a litz wire with adjacent winding layers that are wound to be inclined in a zigzag form.
Claims20
A stylus pen comprising:
- a body;
- an inductor unit including a ferrite core disposed in the body and a coil wound in multiple layers over at least a portion of the ferrite core;
- and
- a capacitor unit disposed in the body and electrically connected to the inductor unit, and
- wherein a permittivity of the ferrite core is greater than 0 F/m and less than 1000 F/m.
A stylus pen comprising:
- a body;
- a resonance circuit disposed in the body,
- wherein the resonance circuit includes:
- an inductor unit configured to include a ferrite core disposed in the body and a coil wound in multiple layers over at least a portion of the ferrite core;
- and
- a capacitor unit disposed within the body,
- wherein a permittivity of the ferrite core is greater than 0 F/m and less than 1000 F/m.
Dependencies are inferred from the claim text.