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:
Jan. 21, 2014
Filed:
Jan. 10, 2013
Logitech Europe S.a., Morges, CH;
Florian Max Kehlstadt, Aclens, CH;
Berni Joss, Bussigny-pres-Lausanne, CH;
Julien Piot, Rolle, CH;
Marc Bidiville, Pully, CH;
Laurent Plancherel, Lausanne, CH;
Baptiste Merminod, Vevey, CH;
Jean-Luc Dupraz, Eschandens, CH;
Maxime Marini, Geneva, CH;
Chiu Yu, Chung Li, TW;
Logitech Europe S.A., Lausanne, CH;
Abstract
A solid-state roller on a pointing device with enhanced features. The solid-state design described herein allows the sensor to be placed on any shape of surface, such as one that has curvature in two directions. In one embodiment, a trench or downward curve contains sensors for detecting finger movement. The user's finger can thus bend about a knuckle in a curved motion to activate the sensor, requiring little or no movement of the finger up and down. The solid-state sensors can be of one of a number of designs. In one embodiment, multiple electrodes are contacted by a finger as it moves. Each electrode is coupled to a capacitive detection circuit, for detecting the change in capacitance as the electrode is contacted by the finger.