Active electromagnetic pen

Patent metadata

Field	Value
Publication number	US-8928634-B2
Application number	US-201113038749-A
Country	US
Kind code	B2
Filing date	Mar 2, 2011
Priority date	Jan 14, 2011
Publication date	Jan 6, 2015
Grant date	Jan 6, 2015

Abstract

An active electromagnetic pen includes a pen body, a pen tip, a pressure detecting module and a power supply module. The pen body has an opening on one end thereof. The pen tip is disposed at the opening of the pen body. The pen tip has a tip end and a plane end opposite to the tip end. The tip end is disposed in the pen body, and the plane end is extended to outside of the pen body through the opening. The pressure detecting module is disposed in the pen body and includes a plurality of pressure detecting elements. The pressure detecting elements are respectively connected to different locations of the plane end of the pen tip. The power supply module is disposed in the pen body and is electrically connected to the pressure detecting module.

First claim

What is claimed is:

1. An active electromagnetic pen comprising:
a pen body having an opening on one end thereof;
a pen tip disposed at the opening of the pen body, the pen tip having a tip end and a plane end opposite to the tip end, the plane end being disposed in the pen body, and the tip end being extended to outside of the pen body through the opening;
a pressure detecting module disposed in the pen body, the pressure detecting module comprising a plurality of pressure de…

Assignees

• Hsu Suei-Shih
• E Ink Holdings Inc

Inventors

• Hsu Suei-Shih

Classifications

• G06F3/03545 Primary

  Physics · mapped topic