Abstract: A method for rapidly displaying pictures on an electronic device receives an identifier of a picture to be displayed. If processed data of the picture exists in a second memory of the electronic device, the processed data is retrieved from the second memory, and the picture is displayed. Otherwise, if processed data of the picture does not exist in the second memory, raw data of the picture is retrieved from a first memory of the electronic device, and the processed data is generated by encoding the raw data. The generated processed data are stored and the picture is displayed.

Abstract: The present invention relates to a grinding tool and a method for fabricating the same. The method comprises: (A) providing a grinding plate having a working surface and a non-working surface, a mold having an adjustment surface, and a backplane; (B) getting the working surface of the grinding plate to fit precisely and be retained on the adjustment surface of the mold by a binder; (C) forming an adhesive layer on the non-working surface of the grinding plate; (D) disposing the backplane on a surface of the adhesive layer to retain the backplane over the non-working surface of the grinding plate by the adhesive layer; and (E) removing the binder to separate the mold from the grinding plate. Accordingly, the present invention can significantly improve the precision and lifetime of products, reduce the cost of production, and enhance the machining efficiency.

Abstract: A light guide bar with a patterned surface for a flicker free light source comprising a light emitting diode (LED) light source disposed on each end of the light guide bar is disclosed. A light diffusing pattern is disposed on a light emitting surface. The light diffusing pattern comprises a plurality of notches that are smallest closest to the LED light sources and largest in the center of the light guide bar. A light reflecting pattern is disposed on a light reflecting surface opposite the light diffusing pattern on the light emitting surface. Light emitted by the LED light sources enters the light guide bar through the ends. The light travels through the light guide bar at various angles and is reflected by the light reflecting pattern on the light reflecting surface. The reflected light is then emitted through the light diffusing pattern on the light emitting surface.

Abstract: A light emitting diode linear light which is high powered and has enhanced uniformity and illumination and is safe to humans, environmentally friendly, and possesses an extremely long lifetime is disclosed. The LED lighting comprises a polygonal light pipe, a light reflector panel, two LED packages, two LED PCBs, a plurality of heatsinks, a plurality of heat pipe assemblies, a protective housing, a back cover, and a diffuser cover. The polygonal light pipe comprises a transparent or semitransparent material. A patterned surface on the light emitting surface of the light pipe diffuses the emitted light. A patterned surface on the surface of the light pipe opposite the light emitting surface reflects light. The plurality of heat pipe assemblies comprise heatsinks and heat pipes. The heat pipes are hollow pipes that are filled with a liquid such as water or coolant and cooperate with the heatsinks to dissipate heat.

Abstract: In a communication machine room wideband noise suppression system, a sensing unit detects a noise source produced by a fan during the operation thereof and generates a noise input signal and a feedback signal, which are sent to a signal amplifying unit for signal amplification. The amplified signals are then sent to a signal converting unit and converted into digital signals. A multi-channel hybrid controller receives the digital signals and makes corrections and conduct rapid convergence algorithm to derive a reverse digital signal, which is sent to the signal converting unit and converted into a reverse analog signal. The reverse analog signal is sent to the signal amplifying unit for power amplification to generate a control signal for driving a loudspeaker unit to produce interfering acoustic wave, so as to cancel out the noise source and achieve the purpose of eliminating wideband noise.

Abstract: In a fan noise canceling system, a feedforward signal generated when a fan speed change occurs and a feedback signal read by a sensor are sent to a signal amplifying unit for signal amplification, and the amplified signals are then sent to a signal converting unit for converting into a digital signal. A hybrid controller receives and corrects the digital signals sent thereto, and conducts rapid convergence algorithm to derive a reverse digital signal. The reverse digital signal is sent back to the signal converting unit for converting into a reverse analog signal, which is then sent to the signal amplifying unit for power amplification and generating a control signal to drive a loudspeaker to produce a reverse acoustic wave, which cancels out wave of fan noise to effectively reduce fan noise without adversely affecting the heat dissipation effect of the fan.

Abstract: A fan enabling increased wind pressure and air volume includes a driving circuit unit, a signal level unit, a signal amplifying unit, and a microcontroller unit (MCU). The driving circuit unit drives the fan to rotate; the signal level unit receives a current signal from the driving circuit unit and corrects the level of the received current signal, and sends the corrected current signal to the signal amplifying unit; the signal amplifying unit receives and amplifies the corrected current signal, and sends the amplified current signal to the MCU; and the MCU calculates based on the amplified current signal to generate a control signal to the driving circuit unit, so that the driving circuit unit follows the control signal to drive the fan to rotate and produce increased wind pressure and air volume to achieve effective heat dissipation at reduced power consumption.

Abstract: A drill includes a flute and a shank, a feed screw extends axially from an end of the flute. A plurality of first cutting edges extend radially from the flute and are arranged in spiral form. A plurality of second cutting edges are formed on respective tops of the first cutting edges and these second cutting edges are dull when compared with the first cutting edges. Each second cutting edge has a thick support portion connected at a root portion thereof.

Abstract: An apparatus for detecting non-uniform cell gap in a liquid crystal display panel is disclosed, which comprises a first plate, an axle, and a cell gap detecting unit. A surface of the first plate has at least one holding mechanism for fixing at least one the liquid crystal display panel onto the first plate. The axle connects to the first plate and is used to rotate the first plate. The cell gap detecting unit detects the cell gap in the liquid crystal display panel.

Abstract: A MULTIPLE SPUR MULTIPLE SPIRAL GROOVE TWIST DRILL includes a flute, whose shank is clamped and secured to a tooling holder of a drilling machine and contains multiple spiral flute grooves; each flute groove is disposed on its peripheral a flute land, a cutting section is formed on a front tip of the flute land; a spur formed at where the cutting section and the flute land crossing each other; and a lead screw point with tapered thread being disposed at a center on the front of the flute to increase strength of the cutting section; and the flute groove in conjunction with the flute to fortify the overall structural strength to provide longer service life and cost benefits of the drill.

Abstract: A line driver includes: a differential amplifier for amplifying an input signal to generate an output signal; first and second series resistors coupled respectively to output terminals of the differential amplifier and through which the output signal is output; first and second negative-feedback resistors each coupled between a respective input terminal and a respective output terminal of the differential amplifier; first and second positive-feedback variable resistors each coupled between a respective input terminal of the differential amplifier and a respective one of the first and second series resistors; and an adjusting unit coupled to the first and second positive-feedback variable resistors to adjust a resistance thereof with reference to the output signal.

Abstract: Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized by the equation Vin=De?ASD[x?vSDt], where D is a magnitude, Vin is a voltage, t is time, ASD is an attenuation coefficient, and vSD is a propagation velocity; and (b) being truncated at a maximum value. An exemplary apparatus comprises: an exponential waveform generator; an input recorder coupled to an output of the exponential waveform generator; a transmission line under test coupled to the output of the exponential waveform generator; an output recorder coupled to the transmission line under test; an additional transmission line coupled to the transmission line under test; and a termination impedance coupled to the additional transmission line and to a ground.

Abstract: An electronic device (10) includes a circuit board (40) and a shield (20). The circuit board includes a pair of mounting holes (44), a first surface (41), a second surface (43) opposite to the first surface, and at least one electronic component (42). The shield includes a top wall (26), a pair of first sidewalls (22), a pair of second sidewalls (24) opposite to the first sidewalls, and a pair of mounting members (23). The top wall, the first sidewalls, and the second sidewalls cooperatively bound a receiving portion (28) for receiving the electronic component. The mounting members extend respectively from the first sidewalls toward the circuit board corresponding to the mounting holes of the circuit board. At least one gap (220) is formed between each of the mounting members and each of the first sidewalls.

Abstract: A pixel module comprising a first transistor, a second transistor, and a connection line is disclosed. The first transistor is coupled to a first gate line, a source line, and a first drain line. The second transistor is coupled to a second gate line, the source line, and a second drain line. The connection line overlaps and isolates the first and the second drain lines.

Abstract: A template, stamp or mold is fabricated by using a low-k material. The structure of the low-k material is transformed when it is baked in a novel heating process. Thus, the template is fabricated to obtain a high hardness and a high aspect-ratio with a low dose of electron beam lithography and an optimized baking process. Consequently, the residual; layer at photoresist bottom is reduced and the time for reactive ion etching is saved. In the end, the stability and the integrity is improved. Hence, the present invention is a solution for fabricating a template, stamp or mold with the feature size from sub-micrometer down to nanometer level.

Abstract: Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized by the equation Vin=De?ASD[x?vSDt], where D is a magnitude, Vin is a voltage, t is time, ASD is an attenuation coefficient, and vSD is a propagation velocity; and (b) being truncated at a maximum value. An exemplary apparatus comprises: an exponential waveform generator; an input recorder coupled to an output of the exponential waveform generator; a transmission line under test coupled to the output of the exponential waveform generator; an output recorder coupled to the transmission line under test; an additional transmission line coupled to the transmission line under test; and a termination impedance coupled to the additional transmission line and to a ground.

Abstract: An electronic device (10) includes a circuit board (40) and a shield (20). The circuit board includes a pair of mounting holes (44), a first surface (41), a second surface (43) opposite to the first surface, and at least one electronic component (42). The shield includes a top wall (26), a pair of first sidewalls (22), a pair of second sidewalls (24) opposite to the first sidewalls, and a pair of mounting members (23). The top wall, the first sidewalls, and the second sidewalls cooperatively bound a receiving portion (28) for receiving the electronic component. The mounting members extend respectively from the first sidewalls toward the circuit board corresponding to the mounting holes of the circuit board. At least one gap (220) is formed between each of the mounting members and each of the first sidewalls.

Abstract: A holding device (40) used for helping fasten an interface card (10) in a peripheral component interconnect (PCI) connector (20) includes a top wall (42), at least a pair of opposite sidewalls (44) for clamping the two sides of the PCI connector, and at least a pair of holding portions (48) for fastening the interface card. Wherein the sidewalls connect with the top wall, and the holding portions connect with the top wall.