Abstract: The present invention relates to a folder or hinge type portable terminal having a grounding unit. A main body has a main board. A folder opens and closes at an angle from the main body. At least one component of a hinge module is formed of a metallic material, and opens and closes the folder at an angle from the main body. A connecting means selectively contacts a grounding portion of the main board to the material components of the hinge module in response to the opening and closing operation of the folder, to provide optimal antenna radiation characteristic irrespective of the opening and closing operation of the folder.

Abstract: A sliding/swing-type portable digital communication apparatus including a main housing having a speaker unit positioned on its rear surface; key housings, each of which is positioned on a side of the main housing, the key housings being adapted to slide a predetermined distance toward or away from the main housing along a longitudinal direction for exposing or hiding the speaker unit according to whether or not the key housings have slid; and a swing housing adapted to rotate about a hinge axis, which is oriented perpendicular to the sliding direction of the key housings, within a predetermined range of angle while continuously facing an upper surface of the main housing and upper surfaces of the key housings for exposing and hiding predetermined areas of the key housings.

Abstract: The present invention relates to a folder or hinge type portable terminal having a grounding unit. A main body has a main board. A folder opens and closes at an angle from the main body. At least one component of a hinge module is formed of a metallic material, and opens and closes the folder at an angle from the main body. A connecting means selectively contacts a grounding portion of the main board to the material components of the hinge module in response to the opening and closing operation of the folder, to provide optimal antenna radiation characteristic irrespective of the opening and closing operation of the folder.

Abstract: A sliding/swing-type portable digital communication apparatus including a main housing having a speaker unit positioned on its rear surface; key housings, each of which is positioned on a side of the main housing, the key housings being adapted to slide a predetermined distance toward or away from the main housing along a longitudinal direction for exposing or hiding the speaker unit according to whether or not the key housings have slid; and a swing housing adapted to rotate about a hinge axis, which is oriented perpendicular to the sliding direction of the key housings, within a predetermined range of angle while continuously facing an upper surface of the main housing and upper surfaces of the key housings for exposing and hiding predetermined areas of the key housings.

Abstract: Disclosed is a sliding-type portable wireless terminal capable of easily opening and closing a sub-body in a lengthwise manner and a method for controlling a sliding movement thereof. The sliding type portable wireless terminal includes a main body and a sub-body movable from an open position to a closed position with respect to the main body by slidably moving in a lengthwise direction with respect to the main body. The sliding type portable wireless terminal has a first gear installed on an upper portion of the main body, a second gear provided at a rear portion of the sub-body in such a manner that the second gear is engaged with the first gear, with a motor connected to the first gear so as to provide rotational force to rotate the first gear, and a control unit for controlling an operation of the motor in response to a predetermined key input signal by a user for controlling a sliding movement of the sub-body.