Abstract:
An improved pivotal hinge mechanism used for portable computer equipped with a stopper device which when portable computer and a docking station are joined together shall be actuated by the docking station to prevent the LCD of the portable computer from rotating in left and right direction, so that the collision happened between the docking station and the LCD of the portable computer due to rotation of the LCD relative to the computer mainframe shall be avoided; when the portable computer is disconnected from the docking station said stopper device shall immediately return to the normal position so that the LCD of the portable computer can rotate again in an angle of 0-180 degrees in left and right direction with respect to the computer mainframe.
Abstract:
A clamping system for clamping a video signal, wherein the clamping system uses a charge-pump unit in company with a digital clamping controller to clamp the potential of the video signal, prior to the video signal being input to a programmable gain amplifier and an A/D converter, so as to reach a desired level. The charge-pump unit provides two charge-pump circuits, wherein one charge-pump circuit supplies a strong burst to boost the potential of the video signal while the video signal is below a threshold value. Otherwise, the other charge-pump circuit supplies a weak burst to fine tune the potential of the video signal when the video signal has reached the threshold value.
Abstract:
A continuous and integrated cleaning/preparation process is described to condition a silicon surface for the formation of a high quality ultra thin gate oxide described. The process is conducted with the wafer surface immersed in an aqueous solution the composition of which is varied continuously according to the steps of the process. The process includes the initial removal of contaminants and particulates followed by the removal of a native oxide. Next the silicon surface is dressed in the present of both HF and ozone by removing a thin surface layer. Any interfacial contamination or surface structural defects which lay under the native oxide are thereby removed. Next a high quality chemical oxide is grown by the action of the ozone in the aqueous bath. The chemical oxide is found to be of higher purity and structural quality than native oxide and provides a superior passivation of the active surface prior to gate oxidation. The chemical oxide is incorporated into the final gate oxide and, because of it's high quality, results in improved device performance of the final gate oxide.
Abstract:
Methods for integrated circuit diagnosis, characterization or modification using a charged particle beam. In one implementation, the bulk silicon substrate of an integrated circuit is thinned to about 1 to 3 μm from the deepest well, a voltage is applied to a circuit element that is beneath the outer surface of the thinned substrate. The applied voltage induces an electrical potential on the outer surface, which is detected as a surface feature on the outer surface by its interaction with the charged particle beam.
Abstract:
A latching axle assembly includes an axle having a head formed at an end of the axle. Multiple recesses are defined at an outer periphery of the head. A cap has multiple protrusions formed at an inner wall of the cap and respectively positioned in the recesses to detachably mount the cap on the head. The cap can be easily and quickly mounted on the axle, and can be detached from an axle found to be defective.
Abstract:
Water is used as a refrigerant, and a humidification cooler (41) which evaporates the water to generate cold heat and a dehumidifier (42) are provided. A compressor (50) which compresses water vapor separated by the dehumidifier (42) is provided. A moisture discharging device (60) which discharges water vapor compressed in the compressor (50) is provided. The compressor (50) is driven by a steam turbine (80) capable of generating rotational power from thermal energy.
Abstract:
A drum has a shell, a pair of batter heads disposed on two sides of the shell, a pair of collars enclosing the batter heads and surrounding the shell, a pair of positioning hoops surrounding the collars, a large number of connection seats disposed on the shell, a large number of positioning mounts disposed on the positioning hoops, and a large number of positioning fasteners fastening the connection seats and the positioning mounts together. Each of the positioning hoops has an inner curved flange to press the corresponding collar on the shell.
Abstract:
The sports shoe in accordance with the present invention mainly comprises a pivotal means, a blocking plate and a latch means. The pivotal means is adapted to pivotally connect the sports shoes to a detachable ice/roller skate and the latch means is adapted to securely lock therebetween. The blocking plate is arranged in spaced relationship with the pivotal means and a space provided therebetween is adapted to receive a pivotal hook seat of the pivotal means. The latch means includes an elastic member and a plurality of guiding studs which are used to increase the sports shoe in assembled reliability for operating the detachable ice/roller skate.
Abstract:
A first channel (20) is formed by sequentially connecting a compressor (21), a vapor separator (55), a heat exchanger (30) and an expander (22). In the first channel (20), a room air is taken as a primary air and discharged to outdoors. A second channel (40) is formed by connecting a heat exchanger (30) to a second inlet duct (43) and a second outlet duct (44). In the second channel (40), an outside air is taken as a secondary air and supplied to a room. The vapor separator (55) is connected to a vacuum pump (36). The vapor separator (55) separates vapor from the compressed primary air to dehumidify the primary air to or below the absolute humidity of the outside air. The vapor separated by the vapor separator (55) is partly supplied to the secondary air in the second outlet duct (44). Then, the secondary air thus humidified is supplied to the room.
Abstract:
Doppler principle has been widely applied to calculate the velocity of the object in motion. In medical ultrasonic imaging, it can be used to detect blood flow or myocardial motion. However, due to the inherent limitation of the Doppler effect, the measured velocity is only the projection of the actual velocity onto the ultrasound beam direction instead of the actual velocity. In previously proposed methods for measuring or correcting the Doppler angles, some need manual correction, others use complicated algorithms. They are either inconvenient to use or difficult to implement in current systems. In the method of Doppler motion detection with automatic angle correction according to the instant invention, it focuses on the relation between the Doppler angle and signal bandwidth to compute the Doppler angle by efficient correlation processing. Specifically, it uses variance of the Doppler signal to approximate square of the Doppler bandwidth. In addition, the actual velocity can be computed using the two-dimensional color mapping function existing in current color Doppler imaging systems. This method is not only suitable for efficient implementation, but also can be easily realized in current imaging systems to provide more accurate velocity information.