Abstract: In a wireless video transmission method for transmitting a video stream on wireless communication networks, the video stream is classified into at least two classes of sensitivity, each corresponding to a sensitive class of data. Each sensitive class of data is optionally advanced an ahead time for starting transmission based on the corresponding class of sensitivity. Then, an automatic repeat of data is optionally applied on each sensitive class of data based on the corresponding class of sensitivity, thereby providing an enhanced error protective capability and reducing the transmission delay.

Abstract: A measuring method and system for liquid crystal display driver chips applies a new method to measure voltages of driver chips, and utilizes probability and statistics for analysis and determination so as to yield a rather accurate effect even under noisy environments. Accordingly, analog-to-digital converters can be replaced for faster sampling. The measuring method and system can be implemented using comparator circuits or pin electronics cards so that the measuring procedure for driver chips is simplified. Measured results are analyzed and verified by application of probability and statistics. As such, testing of liquid crystal display driver chips is more accurate, testing time is reduced, and accuracy level is promoted.

Abstract: A simplified needle puller and container for pulling out and storing used injector needles. The present invention takes advantage of a hollow container which has on one end a plug-in device for needles. Around the plug-in device there is one or several claw tips with gaps in between to catch the inserted needle by holding the pinhead and place it in the container. This prevents injuries caused by needles and infectious disease when safety is concerned of medical people handling them.

Abstract: A lockset keyway cover-up mechanism is composed of a rotor, a retainer, a bushing, magnetic pins and springs adapted with a key, which is provided with an unlocking part containing multiples of magnets, characterized by that the keyway and multiples of pinholes to accommodate the springs and those magnetic pins are directly or with a rotor case cover provided on the front end of the rotor; multiples of insertion holes are provided in recess on the retainer so that the retainer holds against the end of the rotor by means of the bushing and those insertion holes of the retainer are held in position by the insertion of those magnetic pins protruding from the front face of the rotor for the through hole of the retainer to be at a location apart from the keyway, which in turn is covered up.

Abstract: A lockset keyway cover-up mechanism is composed of a rotor, a retainer, a bushing, magnetic pins and springs adapted with a key, which is provided with an unlocking part containing multiples of magnets, characterized by that the keyway and multiples of pinholes to accommodate the springs and those magnetic pins are directly or with a rotor case cover provided on the front end of the rotor; multiples of insertion holes are provided in recess on the retainer so that the retainer holds against the end of the rotor by means of the bushing and those insertion holes of the retainer are held in position by the insertion of those magnetic pins protruding from the front face of the rotor for the through hole of the retainer to be at a location apart from the keyway, which in turn is covered up.

Abstract: A sampling timing recovering circuit free from being troubled by a frequency error is provided. Such recovering circuit includes a phase locking circuit having a local frequency for processing an incoming signal having a phase, a specific parameter and an input symbol rate and for locking the phase of the incoming signal, and a frequency locking circuit electrically connected to the phase locking circuit for locking the input symbol rate of the incoming signal to enable the phase locking circuit to desiredly process the incoming signal. A method to this effect is also provided and includes the steps of a) processing an incoming signal having a phase, a specific parameter and an input symbol rate to have the phase lockable, b) locking the phase of the incoming signal, and c) locking the input symbol rate of the incoming signal to enable the incoming signal to be predeterminedly processed.

Abstract: Systems and methods for are described for the detection of breaks in railroad track rails as well as other events. A plurality of fiber optic monitoring assemblies are located proximate a section of railroad tracks. The monitoring assemblies are capable of detecting and recognizing a rail break event. In an alternative embodiment, systems and methods are described for detection of flat spots on rail car wheels.

Abstract: A method for fabricating a self-aligned contact hole in accordance with the present invention is disclosed. First a conductive layer, a silicon oxide layer, and a first silicon nitride layer are formed on a silicon substrate. Next, the first silicon nitride layer, the silicon oxide layer, and the conductive layer are etched to form a trench. Then, a BPSG layer is formed over the first silicon nitride layer. A photoresist layer having an opening is defined. Then, using the photoresist layer as the masking layer, a part of BPSG layer is etched to form a self-aligned hole. Next, the photoresist layer is removed. Afterward, a second silicon nitride layer is formed and etched back to form a spacer.

Abstract: A timing generating apparatus includes a master timing module adapted to receive an external reference clock and to generate a coarse timing pulse signal. A slave timing module is coupled electrically to the master timing module and receives the coarse timing pulse signal, from which a fine timing pulse signal is generated. A calibration module coupled electrically to the master timing module and the slave timing module receives the coarse timing pulse signal and the fine timing pulse signal, determines a phase difference value between the two, and generates a phase compensation signal corresponding to difference between the phase difference value and a predetermined phase difference value. The slave timing module includes a delay control unit and a voltage-controlled delay unit, which introduce a phase delay into the coarse timing pulse signal so as to generate the fine timing pulse signal.

Abstract: A simple demodulation circuit having a reduced hardware cost and an increased using flexibility is provided. Such architecture is used in a pulse position modulation for retrieving a data from a received source signal and includes a transformation circuit operating the source signal to produce a quantized data having a plurality of data slots, a slot address detector electrically connected to the transformation circuit for reaching a peak slot address from addresses of the data slots, and a timing recovery decoder electrically connected to the slot address detector for recovering the data through decoding the peak address.

Abstract: Universal car seat-adjusting slide rail structure including a slide bar and a slide frame. The slide bar is supported by multiple ball members and plastic circular rods and stably slidably fitted in a slide channel of the slide frame. The surface of the slide bar is formed with multiple locating holes and two connecting lugs are respectively detachably locked at two ends of the slide bar by screws. Therefore, a user can selectively directly lock the slide bar on the bottom face or front and rear sides of the car seat in accordance with the type thereof. Alternatively, the slide bar can be locked on left and right sides of the car seat via an L-shaped auxiliary board so that the slide bar can be widely applied to various kinds of car seats. Moreover, a resilient member is disposed between a fixing section of the slide frame and the clutch control bar.

Abstract: A method for fabricating a LOCOS isolation in accordance with the present invention, involves first forming a masking layer on the active region of a silicon substrate. Next, the masking layer is used as the etching mask and the silicon substrate is etched to form a recess. Then, a thin nitride layer is formed on the masking layer and the recess. Afterwards, a polysilicon layer is deposited on the thin nitride layer. Then, an etching process is applied to etch back the polysilicon and the thin nitride layer, thereby exposing the upper surface of the masking layer. Next, a LOCOS isolation is grown above the recess.

Abstract: A method for fabricating LOCOS isolation having a planar surface. The method utilizes a polysilicon spacer to prevent bird beak. The method adds the steps of forming a polishing stop layer and removing said edge-protrusion portion of the local oxide by chemical mechanical polishing.

Abstract: An antenna includes a substrate, a microstrip patch or a slot, a feed line connected to the microstrip patch or slot, and a diffraction grating modulator mounted on the substrate and formed with a spatial periodic structure. The microstrip patch or slot radiates and receives electromagnetic waves when a signal between the substrate and the microstrip patch or slot satisfies resonance conditions. The diffraction grating modulator diffracts the electromagnetic waves in a predetermined manner so as to improve antenna gain and side lobe bandwidth and modulate directionality of the antenna.

Abstract: A new method for measuring refractive index, small angle, pressure or temperature is disclosed. The method of the present invention utilizes a heterodyne interferometry technique to measure the phase difference between s-(vertical) and p-(horizontal) polarizations, and then substitutes the difference into Fresnel's equations so as to obtain the physical values of the medium to be tested, such as refractive index, small angle, pressure or temperature.

Abstract: An incident ray is emitted into a vacuum probe manufactured by a transparent material inside a cavity and is totally reflected according to the invention. Based on Fresnel's equation, when an angle of incidence is fixed, the phase difference between a s-polarized light and p-polarized light is a function of two refractive indexes on the both sides of an interface. Therefore, when the refractive index of gas inside the cavity varies with pressure therein, the phase difference between the s-polarized light and p-polarized light can be measured by a total-internal-reflection heterodyne interfermetry. Next, the refractive index of the vacuum cavity can be estimated based on the variation of the phase difference. Then, the pressure inside the cavity is obtained from the measured refractive index of the vacuum cavity cooperating a known pressure contrast list, so that vacuum degree inside the cavity is known.

Abstract: A mask matching approach to detect shot changes in MPEG coded video uses reference ratio variances of macroblocks between MPEG coded frames. A function is designed to quantize the results into shot change probability values. Moreover, a conversion function modifies this probability computation to minimize misdetection and loss of detection under unusual image pattern situations. A shot change probability threshold is defined for the video to be examined. When a frame's modified shot change probability exceeds this threshold, the frame is considered to contain a shot change. With this approach, processing time is reduced by evaluating MPEG coded data directly, rather than the raw video.

Abstract: A roller skate includes three or more wheels rotatably supported in the lower portion. The front wheel is disengaged from the ground surface when the middle wheel and the rear wheel are in contact with the ground surface, and the rear wheel is disengaged from the ground surface when the middle wheel and the front wheel are in contact with the ground surface. The rear wheel is coupled to the front wheel so as to be driven by the front wheel when the rear wheel is elevated and is not in contact with the ground surface.

Abstract: A thin film magnetic write head and method are provided wherein the write head has a pole tip region between a planarair bearing surface (ABS) and a zero throat level and a back region which extends back from the zero throat level to and including a back gap. The write head has a yoke which includes top and bottom magnetic poles. Each pole has a pole tip structure in the pole tip region and a back portion in the back region. The pole tip structure of the bottom pole has bottom and top pole tip elements PT1a and PT1b and the pole tip structure of the top pole has a top and bottom pole tip elements PT2a and PT2b. The pole tip elements PT1b and PT2b are located between the pole tip elements PT1a and PT2a and a gap layer G is located between the pole tip elements PT1b and PT2b. Each of the pole tip elements PT1b and PT2b and the gap layer G are bounded by front and back walls and first and second sidewalls.

Abstract: A traveling-wave ring-laser (10) to provide improved power stability single longitudinal mode characteristics, narrow lasing linewidth and smooth wavelength tuning. The ring-laser comprises an optical amplifier (12) that includes a first facet (16) and a second facet (42). Optical amplifier (12) generates laser light from first facet (16) ring-laser (10) directs a portion of the laser light from first facet (16) back into second facet (42). An Faraday rotator (32) and half-wave plate (30) direct a portion of laser light that second facet (42) receives to travel in one direction only from first facet (16) to second facet (42). By feeding back input from optical amplifier (12) first facet 16 into second facet 42, lasing occurs. Causing laser light from first facet (16) to travel in one direction provides for smooth wavelength tuning and stable power performance single longitudinal mode and narrow-linewidth characteristics in laser system (10).