Patent 7655874 was granted and assigned to Fujitsu on February, 2010 by the United States Patent and Trademark Office.
An input device includes an operation portion, a holding portion, a detection portion and at least a switch. The holding portion holds the operation portion so that the operation portion is rotatable around a given axis. The detection portion detects a rotational position of the operation portion with respect to the holding portion. A condition of the switch changes according to an external force exerted to the operation portion.