Removable trackball for a handheld wireless communication...

Details Removable trackball for a handheld wireless communication... Removable trackball for a handheld wireless communication...

G - Physics

06

F

G06F 3/033 (2006.01) H04W 88/02 (2009.01) G06F 1/16 (2006.01) H01H 13/84 (2006.01)

Patent

CA 2581514

A handheld wireless communication device cradleable by an user during text entry. A display and key field are located on a front face of the device. The key field includes alphanumeric input keys and menu control keys. Additionally, an user-removable trackball navigation tool is provided on the device. The trackball navigation tool can be releasably snap-engaged or releasably friction-engaged in the body of the device. The removable trackball navigation tool enables the user to independently remove the trackball navigation tool from the device and perform self-maintenance on the device with respect to the navigation tool.

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