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US 2019/0056807 A1Published application
Capacitive stylus with eraser
AssigneeWaltop International Corporation
InventorsChia-Jui Yeh, Yi-Chih Chang
Life of this patent
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Abstract
This invention discloses a capacitive stylus including a pen housing and an eraser for being applied to a touch device. The pen housing includes a tip for emitting an input signal, and the eraser can emit an erasing signal to the touch device. The intensity or erasing range of the erasing signal is determined by the pressure that the eraser exerted on the touch device. In addition, the eraser can trigger a signal to instruct the touch device performing an application.
Claims10
A capacitive stylus used on a touch device, comprising:
- a pen housing comprising a tip disposed at a front of the pen housing for emitting an input signal;
- an eraser being disposed at a rear of the pen housing for emitting an erasing signal, the eraser comprising:
- a tail cap;
- an emission electrode being disposed within the tail cap;
- a circuit board being electrically connected with the emission electrode;
- a connecting member being made of insulating material and being in contact with the emission electrode;
- a trigger being made of insulating material and being inserted into a recess of the connecting member;
- a metal contact member having a cylinder and a through hole through which the trigger passes;
- a first spring being sleeved on the cylinder of the metal contact member and electrically connecting to the circuit board;
- a second spring being disposed in front of the first spring and electrically connecting to the circuit board;
- whereby an erasing signal is generated by interactions between the metal contact member, the first spring, and the second spring caused by compression of the tail cap.
8 more elements
Dependencies are inferred from the claim text.