Abstract: A lighting device includes a cover, a cap, a central post having opposite ends coupled to the cover and the cap respectively, and a plurality of first and second frames. The cover and the cap both form a plurality of circumferentially distributed slots opposite to each other. The first and second frames have ends respectively fit into the slots of the cover and the cap and each frame carries at least one light-emitting diode. As such, a light-emitting diode lighting device that is hollow, light-weighted, and exhibiting excellent heat dissipation is formed.

Abstract: A heat dissipation device is provided for dissipating heat from a heat source inside a notebook computer, and includes a hood, a bottom board, a thermal insulation layer, and at least one fan. The hood and the bottom board together define a heat dissipation channel. The bottom board integrally forms a plurality of fins and pegs. The bottom board is set above the heat source. The fan is set above the bottom board to efficiently expel heat from the inside to the outside. With the plurality of fins and pegs, the heat dissipation surface area of the bottom board and the heat source is increased and the overall heat dissipation performance is enhanced.

Abstract: The present invention provides an improved sunshade board, the sunshade board comprises: a digital radio device that comprises at least one memory card socket, operate display panel, a sense display device that comprises at least one display screen, optical coupling member. The present invention decreases volume of radio device, and decreases taken room by putting digital music through memory card. And the memory card has small volume and large capacity, and is room-saving, easy-taking, and sense objects by optical coupling member, and can transfer sense results with board degree and high security to display screen disposed on sunshade board.

Abstract: A radio transmission memory card, and a handset transmission electronic transaction system and method using the same, wherein transaction system includes a handset, a memory card, a user identification card, a mobile base station and a transaction terminal, and between the handset, the memory card, the user identification card, the mobile base station and the transaction terminal is provided with a radio transmission circuit structure. When a handset holder proceeds a transactions at the transaction terminal, a transaction message and a confirmation message are sent by both sides, the transaction terminal and the mobile base station respectively; the transaction terminal delivers a purchased product upon receiving the confirmation message and sends a message of completed transaction upon delivery of the product; and the mobile base station sends a message to inform a payment terminal to charge the transaction amount using another radio transmission circuit structure.

Abstract: The multi-transmission interface memory card is characterized by the dual interface capacity of its memory control chip. The multi-transmission interface memory card is simultaneously compatible to two modes of data interfacing, it enables the easy interfacing between the computers with a number of electronic (terminal) devices or the easy interfacing between the two of many these electronics devices.

Abstract: The present invention provides a structure for digital cards, which comprises a digital card main body, with the following features: contacts are attached to both sides; it furthermore possesses an electronic write-protection; wherein the contacts on both sides are used to raise the transfer efficiency, while the write-protection provides for a more secure possibility to define the card as write protected or write enabled.

Abstract: The present invention: digital card linker, especially relates to a linker structure for digital card linking with computer, which is in shape of box; one end of the linker is open end having an open for digital card inserting into. The linker has flexible piece on the upper side and lower side relative to the position of upper and lower terminals of digital card. The digital card linker can be applied to the tradition type digital cards and can be applied to future double faces and single row of digital cards, and can increase the stability of link of linker and digital card.

Abstract: The present invention provides an all-purpose motor screen. The screen is a removable liquid crystal screen. The screen cooperate outer drive module having drive circuit and battery device, and by changing drive module of various drive circuit to make the screen has various purposes, and can be driven by drive screen display image.