The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2009
Filed:
Jul. 29, 2004
Farid Matta, Los Altos, CA (US);
Jonah Harley, Mountain View, CA (US);
Farid Matta, Los Altos, CA (US);
Jonah Harley, Mountain View, CA (US);
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A pointing device having a moveable puck and a first belt having a slot therein in which said puck moves in a first direction is disclosed. The first belt is wrapped around the first and second belt guides such that the first belt moves back and forth in a second direction different from the first direction. A spring system returns the puck to an equilibrium position when the puck is released from a position that is displaced from the equilibrium position. A sensor measures the position of the puck. In one embodiment, the spring system includes first and second springs that are attached to a surface that is fixed with respect to the first belt. The first spring provides a restoring force in one direction when the second spring provides a restoring force in the opposite direction and vice versa.