Patent ID: 7373187

Claim:
A portable digital communication apparatus comprising: a first housing having a first lateral surface and a second lateral surface generally perpendicular to the first lateral surface; a second housing; a hinge unit adapted to connect the first and second housings in such a manner that the first and second housings can be rotated towards or away from each other in a first position and in a second position, the hinge unit having a first hinge axis being oriented parallel to the first lateral surface in the first position and parallel to the second lateral surface in the second position; a first sliding/rotational hinge means positioned between the hinge unit and the first housing; and a second sliding/rotational hinge means positioned between the hinge unit and the second housing, the first and second sliding/rotational hinge means for positioning the hinge unit adjacent and parallel to the first lateral surface in the first position and to the second lateral surface in the second position through at least one linear sliding movement and a rotational movement.