Touchpad stylus having isolated low-mass contact element

Details Touchpad stylus having isolated low-mass contact element Touchpad stylus having isolated low-mass contact element

2005-12-06

2005-12-06

Shalwala, Bipin (Department: 2673)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Stylus

C345S156000, C345S173000, C178S018010, C178S019010

Reexamination Certificate

active

06972754

ABSTRACT:
A touchpad stylus includes a housing, a stylus member axially moveable in the housing, and an energy-absorbing cushion member interposed between a rear extremity of the stylus member and an internal cavity of the housing, the cushion member lightly forwardly biasing the stylus member relative to the housing. The stylus member has a smoothly spherical tip extremity, and the device avoids impact damage to fragile outer membranes of existing touchpad devices because the full mass of the housing is isolated from impact with the touchpad, the stylus member itself having very significantly less mass than an aggregate mass of the complete assembly.

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