Abstract: A computer systems which combines the capabilities of both notepad and notebook computers. The main housing includes an liquid crystal display display with a digitizer input to be used as the display in all modes and the input device when used with a stylus in notepad mode. Also located in the main housing are a floppy disk drive, a hard disk drive, an optional modem unit, batteries, and the electronics of the computer. The main housing contains a recessed portion for receiving a detachable keyboard. The keyboard includes a pivoting, mating extension which is received in the recess so that the keyboard is retained in the recess during storage conditions and in some cases of use, where the housing acts as a partial keyboard support to allow angling of the keyboard. The keyboard contains pivoting legs so that the keyboard can be used remotely from the main housing and yet be angled.

Abstract: A laptop personal computer system according to this invention comprises a base unit including a microcomputer subsystem, a cover unit including a display subsystem, a hinge unit for coupling the cover unit to the base unit, the hinge unit having a clutch spring to control torque from opening or closing the cover unit, and conductive elements cooperatively coupled within the hinge unit for suppressing electromagnetic interference in operations of the microcomputer subsystem.