| 摘要 |
A scroll wheel hinge assembly for an electronic device is described. The scroll wheel hinge assembly may be used for an electronic device that pivotally connects a flip module with a base module having a keypad. The flip module has a front face with an internal display and a back face with an external display. The hinge assembly includes a cylindrical rotatable assembly, a flip-closed position, and a flip-open position. More particularly, the cylindrical rotatable assembly is configured to enable the flip module to rotate in relation to the base module about a rotatable axis associated with the cylindrical rotatable assembly. The cylindrical rotatable assembly also includes either a free-wheel or a touch sensitive component on the exterior of the cylindrical assembly. In the illustrative embodiment, the touch sensitive component is configured to perform a scroll function that includes a scroll-up operation and a scroll-down operation.
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