Patent ID: 7522944

Claim:
A portable electronic apparatus comprising: a first housing having a first inner surface and a first outer surface, the first outer surface receiving a battery; a second housing having a second inner surface and a second outer surface; a battery cover rotatably coupled with the first housing and being closed in a cover recess formed at the first outer surface for protecting the battery; a hinge unit having a hinge axis for connecting the battery cover, the first housing and the second housing, and enabling the first housing and the second housing to open and close from each other; and a hinge recess having a semi-cylindrical shape and extending longitudinally in both the first housing and the second housing along the hinge unit at the first and second inner surfaces to receive a stylus therein, wherein the first housing includes a first groove positioned at a first outer edge opposite from the hinge unit for facilitating unfolding of the first housing from the second housing, the first groove including at least one first slant surface receiving at least one first function key, and wherein the second housing includes a second groove positioned at a second outer edge opposite from the hinge unit for facilitating unfolding of the second housing from the first housing, the second groove including at least one second slant surface receiving at least one second function key.