Abstract: A rotatable display mounting structure is disclosed to include a hollow frame, a display pivotally mounted inside the hollow frame, positioning structures provided at the display, positioning devices formed in the hollow frame and adapted to engage with the positioning structures and to hold the display in the hollow frame in position after rotation of the display in the hollow frame vertically (or horizontally). The positioning structures are respectively extended from the outer left side of the display to the outer right side of the display, and the positioning devices are respectively extended from the left-side frame bar of the hollow frame to the right-side frame bar of the hollow frame, so that the positioning structures and the positioning devices, when matched, form a shielding structure to stop light from passing through the gap between the display and the hollow frame.

Abstract: The present invention relates to a printed circuit board with low noise. A voltage source layer and a ground layer of the printed circuit board are divided into an analog reason and a digital area respectively via an isolation line, and adapted to conduct voltage source signal and ground signal respectively. Because the isolation line is an open pattern and a capacitor adapts to position near the opening, the noise and the electro-magnetic parameter of the printed circuit board are reduced.

Abstract: A heat sink vacuum packaging procedure to rapidly complete the packaging of a heat sink without drilling, pipe welding, vacuum pumping, or other processes. Because the packaging procedure saves much time and labor, the manufacturing cost of the heat sink is relatively reduced. During packaging, no welding process is employed, therefore the invention prevents accidentally flowing of tin solder into the inside of the heat sink to affect the quality of the heat sink, and the quality of the heat sink is maintained.

Abstract: A backflow-preventive fan module includes a partition member separating a housing into two separated receiving chambers and two air outlets, two fan modules respectively mounted in the receiving chambers, and two backflow prevention members respectively mounted in the receiving chambers adjacent to the two air outlets. When one fan assembly failed, the corresponding backflow prevention member is forced by pressure difference to block the corresponding air outlet, and the other fan assembly functions normally to effectively dissipate heat out of the computer in which the fan module is installed.

Abstract: A dual operational frequency slot antenna for receiving/transmitting wireless signals from a satellite or for receiving/transmitting wireless signals in an RFID system comprises two L-type slot antennas and a printed circuit feed line to receive and transmit circularly polarized radiation at dual operational frequencies.

Abstract: A reusable hardware intellectual property (IP) component protocol method for a system-on-chip is disclosed, which uses a software function to describe hardware behavior. A calling of the software corresponds to hardware IP component's execution, and the procedure of the software function corresponds to the behavior of the hardware IP. Therefore, the hardware IP can be reused as a software function.

Abstract: An auto-test system for testing the stability of a computer is disclosed. First, a tested computer is placed in a testing chamber. Afterwards, the temperature in the testing chamber and the operating voltage of the computer under test are set automatically, and the test results are also recorded automatically by the auto-test system of the present invention. Consequently, the stability test of the computer under test can be carried out automatically, and the manpower needed for setting the operating temperatures and operating voltages can be saved.

Abstract: An auto-locking support structure lockable between the received position and the extended position by means of linking among a cover plate, a link, a slide and a pivot shaft, and biasing and prestressing from a spiral spring to the pivot shaft. The user needs not to move the linking parts of the support structure directly with the hand when opening or closing the support structure, preventing loss of supporting function due to friction damage.

Abstract: A cooling device is constructed to include a heat sink attached to a heat generating device and adapted to absorb heat energy from the heat generating device, and at least one heat pipe mounted in the heat sink, each heat pipe having a condensing side formed at each end and disposed at a relatively lower temperature area at the heat sink and an evaporation side formed at the middle and disposed at a relatively higher temperature area at the heat sink.

Abstract: The present invention relates a chiral compound, comprising a general formula as formula (L): wherein A, B independently are X, Y independently are fluorine (F), hydrogen (H) or chlorine (Cl); m represents an integral from 6 to 16; n represents 0 or 1; p represents 1,2,3 or 4; and q represents 1,2,3 or 4.

Abstract: A detachable flywheel device is placed on a display and is used for adjusting display parameters of the display. Since a user only needs to roll or press the detachable flywheel to adjust the display parameters of the display, which is a very simple and fast action, the user can continue to watch the display. Furthermore, by using an optical technique to detect the detachable flywheel's movement, there is no mechanical wear or problems related to dust. Furthermore, the user can place the detachable flywheel device to a predetermined position, or remove the detachable flywheel device in order to prevent other people from changing the display parameters.

Abstract: A portable computer host has a display face, a back face and four side faces. First magnetic units and at least one positioning unit are placed on the display face or the back face. An attached panel, having an attaching face and four edges, has second magnetic units placed on the attaching face that correspond to the first magnetic units, and also has at least one second positioning unit placed on the attaching face corresponding to the first positioning unit.

Abstract: A detachable electronic device mounting holder having an open chamber for holding an electronic device, the open chamber having a front open side and a rear open side for easy insertion of an electronic device and a cross bar at the rear open side for stopping the loaded electronic device in place, an elongated opening on an upper border of the mounting holder through which the electric wires of the electronic device are inserted into the open chamber and then extended out of the rear open side of the open chamber, and two U-shaped springy hooks respectively disposed at two sides for detachably securing the electronic device mounting holder to an apparatus case.

Abstract: A battery engagement structure used in a portable battery charging module is disclosed to include a housing accommodating an operation mechanism and a button such that when a battery pack inserted into the battery engagement opening at the housing, the locking bar of the operation mechanism is pushed away by the inserted battery pack. Pressing the button with the hand after charging, the locking bar is moved away from the battery engagement opening to unlock the battery pack. The moving direction of the locking bar is reversed to the pressing movement of the button by means of the action of the link of the operation mechanism, therefore the component parts of the battery charging module can be freely arranged to fully utilize the internal space of the module.

Abstract: A hard disk latch structure includes a hard disk base frame on which at least two receiving plates are formed. The receiving plates, each having a sliding groove with an insertion end and a blocking end, define a hard disk receptacle there between. The sliding grooves receive screws mounted on two lateral surfaces of a hard disk. As a hard disk is mounted between the receiving plates, a mounting element is further attached to one side of the hard disk base frame so that a plurality of blocking objects formed thereon lock those screws at the blocking ends, completing the assembly of the hard disk latch structure. The hard disk latch structure can be hook-mounted onto a computer chassis straightforwardly, which saves time and enhances efficiency of computer maintenance.

Abstract: A bilayer microstrip reflector antenna is disclosed to include a first dielectric layer, the first dielectric layer having antenna units and phase-delay circuit units overlapped on antenna units, and a second dielectric layer abutting against the first dielectric layer. A better gain-bandwidth is obtained by adjusting the overlapping distance of the antenna units and phase-delay circuit units, side length of antenna units and the dielectric constant and thickness of the two dielectric layers. Surface wave phenomenon is reduced by means of selecting a relatively lower dielectric constant. A satisfactory grounding effect is obtained to reduce radiation from phase-delay circuit units by lowering the second dielectric layer toward the ground.

Abstract: An antenna of a four-band printed circuit board is disclosed, which uses metal electrode plates on A, B sides and a substrate interlayer formed of glass fiber dielectric insulator. The A-side electrode plate is grounded to a reflective plane to form a U-like pattern, wherein a left metal sheet is symmetric to a right metal sheet and the two sheets respectively have three gaps so as to form an intermittent metal plane. The middle of the U-like pattern is implemented with four metal ring electrodes and one electrode is circuit-shorted to the B-side electrode plate for increasing antenna sensibility and reducing antenna size. In addition, in this case, one antenna can be shared by four operating bands to receive and transmit via switching, so the manufacturing cost is low and the prior art disadvantage of only receiving and transmitting single- or double-band signal in a typical linear antenna is overcome.

Abstract: The present invention discloses a method of reading and modifying identification data of a display, the method reads and modifies an identification data of a display to obtain a related identification data, the user interface displays the identification data or related identification data in a manner that the user can understand, and allows the user to modify the identification data and stores the modified identification data into the display.

Abstract: A slot antenna for a portable wireless communication device hides the antenna, which is integrated with the portable wireless communication device. The slot antenna has good communication capabilities, and causes no additional electromagnetic interference to the portable wireless communication device. The slot antenna has multi-polarization capabilities, which can provide better communication functionality.

Abstract: A multi-function control key structure formed of a key cap and a springy key body is disclosed for different triggering controls by means of a center shank of the key cap and a plurality of triggering rods of the key body around the center shank. The key cap has driving rods spaced above the triggering rods and adapted to drive the triggering rods to make a triggering action respectively. The center shank is tilted so as not to make a triggering action accidentally when the key cap is biased to force one triggering rod of the key body to make a triggering action. The driving rods do not touch the triggering rods when pressed the center area of the key cap to force the center shank to make a triggering action.