Patent ID: 8164571

Claim:
An electronic device comprising: a casing having a front surface; a display; a keypad comprising alphanumerical keys that are arranged at fixed locations relative to the display so that the alphanumerical keys are displaceable in a direction perpendicular to the front surface; a set of navigation and function/control keys arranged on a slidable element, the display and keypad being arranged adjacent to one another on the front surface, wherein the slidable element with the set of navigation and function/control keys thereon is arranged to be slideably displaced along an axis of the casing by a user of the electronic device to different positions on the front surface, including a position where sections of the front surface are visible on both sides of the set of navigation and function/control keys in a direction along an axis and a second position where the slidable element with the set of navigation and function/control keys thereon completely covers the keypad when the slidable element with the set of navigation and function/control keys thereon is in the second position; and a bias mechanism to bias the set of navigation and function/control keys towards the second position when the set of navigation and function/control keys is located between an intermediate position and the second position, and to bias the set of navigation and function/control keys away from the second position when the set of navigation and function/control keys is located between the intermediate position and a position where the entire keypad on the front surface is visible.