Stylus pen
AssigneeHiDeep Inc.
InventorsSeyeob Kim, Hyoungwook Woo, Kiryoung Jung, Bonkee Kim
Life of this patent
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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.
Claims18
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 1 unit, and
- wherein a permittivity of the ferrite core is greater than 0 F/m and less than 1000 F/m;
- and
- wherein the coil is wound so that the winding of an upper winding layer begins at the point where the winding of the lower winding layer, where the coil is wound multiple times, ends.
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;
- and
- wherein the coil is wound so that the winding of an upper winding layer begins at the point where the winding of the lower winding layer, where the coil is wound multiple times, ends.
Dependencies are inferred from the claim text.