Abstract: A monitor and a DC/AC converter thereof are provided. The monitor includes a lamp and a DC/AC converter. The DC/AC converter includes a pulse width modulation (PWM) unit, a DC/DC converting unit and a Royer circuit. The PWM unit is used for outputting a PWM signal whose pulse width is determined by a potential signal. The DC/DC converting unit receives and converts the first DC voltage to a second DC voltage whose potential is determined by the PWM signal. The Royer circuit generates an AC voltage to the lamp according to the second DC voltage. The DC/AC converter determines the potential of the AC voltage according to the potential signal. When the DC/AC converter operates in burst mode, the potential signal is alternated between a high potential and a low potential, such that the AC voltage outputted is in burst mode.

Abstract: A traverse module for a disc apparatus includes a chassis, a spindle motor for rotating a disc thereon, a gasket set positioned between the spindle motor and the chassis; and a screw set corresponding to the gasket set. The spindle motor is mounted on the chassis. The screw set adjustably secures the spindle motor and the chassis via the gasket set.

Abstract: A heat-dissipating model includes a heat-conducting member and a heat-dissipating body. The heat-conducting member has a hollow cylinder with a closed end. The interior of the wall of the cylinder is formed with a vacuum chamber. The vacuum chamber is provided with a capillary structure and a working fluid therein. The heat-dissipating body has a through hole for connecting to the outer periphery of the heat-conducting member. Further, the periphery of the heat-dissipating body is provided with a plurality of heat-dissipating fins. With the above arrangement, the heat generated by the heat source can be dissipated to a far place, so that it can be continuously operated at a lower temperature. As a result, the effect of heat conduction or dissipation can be improved and the life is extended.

Abstract: A flow meter comprising a tubular main-body and a cover plate formed by printed circuit board which carries two pressure sensing devices tightly packed by soft rubber material for sensing the pressure head of and the pressure difference between the inlet and outlet of the flow meter. Since the cover plate is mounted on, and fastened to the main-body by fastening screw, but not by adhesive to form a complete unit, the cover plate can therefore bear high fluid pressure without crack or damage, i.e., shall increase the capacity of bearing pressure, the service life and accuracy, and decrease the occurrence of malfunction to the flow meter.

Abstract: In assessing the capability of an IP based network to support toll telephony service, objective measurements of Speech Quality are taken. A module is used with Voice over Packet equipment that allows performance of voice quality measurements in real-time without using any external test equipment. A reference signal that includes a marker and a voice test signal is sent through the network from one Voice over Packet equipment containing or connected to the module to another. The received marker is compared to the reference marker to identify the onset time of the received voice test signal. The received and reference voice test signals are processed to measure the quality of the network. This may be implemented using the processing power and memory resources present in Voice over Packet equipment giving the network administrator an enhanced test capability at each node of the network.

Abstract: Systems and methods for audio signal processing are disclosed, where a discrete number of simple digital filters are generated for particular portions of an audio frequency range. Studies have shown that certain frequency ranges are particularly important for human ears' location-discriminating capability, while other ranges are generally ignored. Head-Related Transfer Functions (HRTFs) are examples response functions that characterize how ears perceive sound positioned at different locations. By selecting one or more “location-critical” portions of such response functions, one can construct simple filters that can be used to simulate hearing where location-discriminating capability is substantially maintained. Because the filters can be simple, they can be implemented in devices having limited computing power and resources to provide location-discrimination responses that form the basis for many desirable audio effects.

Abstract: A method for loading configuration data onto a non-volatile memory and the device using the same is provided. A non-volatile memory block is preloaded with a certain compatible memory configuration data in advance when the memory device is being manufactured. The memory configuration data comprises plural parameters corresponding to the non-volatile memory. When readying the memory device, the preloaded configuration data is loaded onto a random-access memory thereof so as to save the space in a read-only memory used for storing the memory's identification and its specification. Additionally, means for loading the configuration data from the preload zone onto the random-access memory is introduced to update the firmware.

Abstract: A test key for checking an interconnect structure is described, including a contiguous metal line and multiple conductive plugs on the contiguous metal line, wherein one end of each plug contacts with the contiguous metal line. The other end of at least one plug is not connected to any conductor. In addition, the two ends of the contiguous metal line are connected to different voltages.

Abstract: A pressure gauge comprising a thread tube, a printed circuit board carrying a pressure sensing device installed on one side of the printed circuit board and tightly packed with silicon rubber to form the end cover of the thread tube. When used for testing the pressure of acidic or alkaline liquid the pressure sensing device of the pressure gauge will not be brought into contact with the liquid, but can sense the pressure through the silicon rubber packing to test the pressure of the acidic or alkaline liquid, and the range of application of the pressure gauge covers the test of pressure of gas, acidic liquid, alkaline liquid and low pressure gas.

Abstract: An interface circuit according to one embodiment of the present invention includes a clock signal, a first phase locked loop coupled to the clock signal line and generating a reference clock signal, a second phase locked loop receiving the reference clock signal, and in accordance therewith, generating one or more phase shifted reference clock signals, and a data transceiver circuit coupled to receive at least one of the clock signal, the reference clock signal, or one or more of the phase shifted reference clock signals to control the flow of data between a first circuit and a second circuit. An interface circuit according to one embodiment of the invention can be used advantageously for controlling the flow of data between a CPU and an external memory.

Abstract: A cooling energy saving structure, capable of connecting to a PCB multi-axial driller, includes a chiller, a freezing dryer, and a thermal superconductive recycling device, where the chiller has a liquid outward piping and a liquid inward piping, the freezing dryer has a gas outward piping and a gas inward piping, and the thermal superconductive recycling device accommodates the liquid inward piping of the chiller and the gas outward piping of the dryer. The device further features cooling the liquid in the inward piping before it flows back to the chiller, and heating the gas in the outward piping before it is discharged. The heat exchange performed between the flow back liquid of the chiller and the discharged gas of the dryer takes advantage of the device, which proves to have substantially cut down energy consumption and power expenditure for a very effective use of energy resources.

Abstract: An acoustic wave sensing device integrated with micro-channels and a method for the same are described. The present invention uses a piezoelectric substrate with a thinner portion serving as a sensing area and formed via a micromaching or chemical process. An inter-digital transducer (IDT) is located on the thinner portion to produce flexural plate waves (FPW). The micro-channels can be formed together with the thinner portion via the same manufacturing process, or integrated into the piezoelectric substrate via linkage. In the present invention, a novel manufacturing process and design are proposed for fabrication of the acoustic wave sensing devices with a good piezoelectric characteristic, a stable temperature compensation property, and a robust structure. Thereby, the techniques of flexural plate waves can be applied for liquid sensors. In this way, the drawbacks of the conventional acoustic wave sensing devices, such as poor piezoelectric properties and fragile film structures, are removed.

Abstract: A soft pad including a flat soft substrate and a facial unit added to one face of the soft substrate. The facial unit is composed of at least a first and a second plastic membranes which are combined together. The second plastic membrane is attached to the face of the soft substrate. Multiple independent hollow bosses are distributed over the first plastic membrane. Multiple envelope spaces are respectively defined by the bosses and formed between the first and second plastic membranes without communicating with each other.

Abstract: A device for cooling a light emitting diode projector includes a first cooling unit that includes a hollow portion. One end of the hollow portion includes a third cooling body and a reflection cover. The light emitting unit is adhered to one surface of the third cooling body, while the light source is projected corresponding to the reflection cover. A connection unit is disposed on the other end of the hollow portion, which can convey power source to the light emitting unit. The heat generated from the light emitting unit is directly absorbed into the third cooling body, and is transferred to the first cooling unit for performing heat exchange. The light emitting diode projector can thus obtain a better cooling effect.

Abstract: The present invention relates to a mechanism for guiding airflows within an optical disc drive, in which the optical disc drive comprises a chassis having a side wall and a tray for loading or unloading a disc. The guide mechanism of the present invention includes at least one guide passage which is protruded outwardly from the side wall of the chassis and has two guiding oblique surfaces at its both ends. Further, the guide passage is positioned on an extended line of a diameter of the disc normal to the side wall of the chassis. The airflows produced by the revolving disc is guided to flow through the guide passage. According to the guide mechanism the shocks, jarring, and noise of the optical disc drive is minimized.

Abstract: A system structure with a fan module. The system structure has a housing and a fan module. The housing has a substrate with the fan module detachably installed thereon. The substrate has a plurality of guide ports, several first positioning portions and a second positioning portion. The fan module has a body, two plates and a fan unit. Each plate is detachably disposed on the body and provided with several positioning portions. When the fan module is attached to the substrate of the housing, the third positioning portions of the fan module are fixed by the first positioning portions of the substrate, and the fourth positioning portion of the fan module fits into the second positioning portion of the substrate.

Abstract: A process of configuring a media facility is provided. A source icon representing at least one media source is generated. Then, characteristics of the media source is encrypted in the source icon including settings and recalls for all devices in the signal path. Further, a media space representing an output device is generated. Then, characteristics of the output device is encrypted in the media space. The source icon and the media space are presented, for example, on a display system, to a user for selection. The user may select the source icon and apply it to the media space including settings and recalls for all devices in the signal path, for example, through dragging and dropping. Once the media source, the output device and/or other devices in the signal path between them have been configured, the user may store the configuration for a later recall.

Abstract: A system and method for automatic SPC chart generation including a storage device and a data acquisition module. The storage device stores a chamber management tree, a recipe window management tree, a parameter configuration table and multiple chart profile records. The data acquisition module, which resides in a memory, acquires multiple process events and parameter values corresponding to the process events and a process parameter, selects a relevant statistical algorithm, calculates a statistical value by applying the statistical algorithm to the parameter values, creates a new chart profile record and a parameter statistics record therein if the chart profile record is absent, and stores the statistical values and measured time in the parameter statistics record.