Abstract: An illumination device comprises a rotating member secured to a hub of a fan of a computer having a transparent case and including LEDs, a receptacle formed above a center, the receptacle including a projected head and an internal electromagnet, control circuits each for periodically controlling an on or off of one or more of the LEDs, a coil of wire surrounded by the electromagnet, and positive and negative terminals; and a fixed member secured to the fan and including a central slot snugly coupled to the head for fastening the receptacle and the fixed member together. Turning on the computer, the fan, the rotating member, and the coil of wire will rotate so as to cut magnetic lines across a space defined by the electromagnet, induce a voltage in the terminals, and illuminate or flash the LEDs.

Abstract: A device is provided to detect whether a power cable having two four-pin connectors in a computer is malfunctioned or not without using a meter. In one embodiment, the device comprises a pair of positive and negative apertures and a LED. In a coupled state of the detection device and one connector of the power cable, the positive aperture is put on the first positive pin and the negative aperture is put on the first negative pin so as to electrically couple the device to the power cable for causing the LED to emit light if the electrical connection of a 5V power cable portion of the power cable is not broken. In another embodiment, electrical connections of both 5V and 12V power cable portions of the power cable can be detected.

Abstract: The invention provides a method and apparatus that addresses and resolves the issues currently affecting the ability to offer Enhanced TV, in particular, those issues concerning timing and synchronization, interaction with other modules in the STB, and distribution.

Abstract: An exercise device has a board wherein an oval recess is formed. A circular recess is formed in the oval recess. An oval plate has a first side and a second side on which a disk is rotatably attached. The oval plate is receivable in the oval recess. The disk is receivable in the circular recess. The first side of the plate and the upper side of the board form a plain surface on which the exerciser can do sit-ups when the oval plate is received in the oval recess and the disk is received in the circular recess. When the oval plate is received in the recess with the second side thereof exposed, there is exposed the disk on which exercisers can stand and twist.