摘要:
A distance measuring device is provided. The distance measuring device includes: a distance sensing unit, for sensing a distance value of a target object; a drive unit, for driving the distance sensing unit to rotate according to a rotation angle; and a compensation unit, for providing a compensation value according to the rotation angle and obtaining an actual distance according to the compensation value and the distance value.
摘要:
A LiMPO4-based composition of matter suitable for use to form cathodes to form high-performance Li-based batteries is disclosed. The composition of matter is defined by the formula LiMPO4, where M is at least one transition metal, and wherein the composition of matter has a general lattice structure. The composition of matter includes Ru ions that substitute for at least one of Li ions and at least one of the ions of the at least one transition metal M. Methods of forming the composition of matter are also disclosed.
摘要:
A dust collection container, capable of being installed in a vacuum cleaner, includes a case body and a blocking member. The blocking member is disposed in the case body to separate the case body into a dust chamber and a diversion chamber, a suction inlet corresponding to the dust chamber and an exhaust opening corresponding to the diversion chamber are disposed in the case body, and a barrier piece is disposed at the blocking member opposite to the suction inlet, so as to form a slow flow area between the barrier piece and the suction inlet to effectively disperse dirt.
摘要:
A material for use in the cathode terminal of a battery that is made from a lithiated manganese oxide which is doped with ruthenium and optionally with a transition material and a method for the synthesis of the same. The material exhibits improved conductivity and cyclic performance at high current density (current density of 1470 mA/g and higher) and can be used in hybrid vehicles and other electronic devices due to its good cyclic performance at high current density and its relatively large capacity.
摘要:
A stackable semiconductor package includes first and second substrates, a semiconductor device, first wires, a supporting element, and a first molding compound. The semiconductor device is disposed on the first substrate. The second substrate is disposed above the semiconductor device, and the area of the second substrate is larger than that of the semiconductor device. The first wires electrically connect the first and second substrates. The supporting element is disposed between the first and second substrates, and supports the second substrate. Some pads of the second substrate are exposed outside the first molding compound. Therefore, the overhang portion of the second substrate will not shake or sway during wire bonding, and the area of the second substrate can be increased to have more devices thereon. Also, the thickness of the second substrate can be reduced, to reduce the overall thickness of the stackable semiconductor package.
摘要:
A Voice over Internet Protocol (VOIP) system cooperates with a phone and an access point storing default connecting information. The VOIP system includes a transmitting module, a receiving module, a decoding module and a comparing module. The transmitting module is disposed in the phone and transmits numeral information. The receiving module is disposed in the access point and receives the numeral information. The decoding module is disposed in the access point and is electrically connected with the receiving module for converting the numeral information into character information. The comparing module is disposed in the access point and is electrically connected with the decoding module for comparing the character information and the default connecting information so as to determine whether the access point proceeds to connect with the phone or not.
摘要:
A chip package including a package substrate, a chip, several bonding wires, a flash-resisting ring and a molding compound. The package substrate includes a carrying surface and several contacts disposed on the carrying surface. The chip is disposed on the carrying surface. A surface of the chip away from the package substrate includes an active region and several bonding pads. The bonding pads are located outside the active region. The bonding wires connect the bonding pads and the contacts. The flash-resisting ring disposed on the chip is located between the bonding pads and the active region. The flash-resisting ring surrounding the active region includes at least one buffer groove. The buffer groove surrounds the active region. The molding compound disposed on the package substrate and the chip encapsulates at least the bonding pads, the contacts and the bonding wires. The molding compound exposes the active region.
摘要:
A method for determining the areas of resin to be cured in an optical stereolithography process for rapid prototyping using sequential laser curing of layers of a resin having a selected thickness to produce a desired shape of cured resin. The method includes the steps of generating a computer model of desired shape and dividing the model into layers of thickness equal to the thickness of the layers each defining an area of resin to be cured. A set of layers including and sequentially adjacent an intermediate layer is selected and the areas in the intermediate layer of resin which would be oversized by laser curing of layers later in the curing sequence is determined. The 2-D layer data used to build a 3-D model is modified to compensate for the oversizing and the steps repeated by sequentially selecting sets of layers to include substantially all of the layers as the intermediate layer. The sets are sequentially selected with each subsequent set having the intermediate layer being the layer adjacent the intermediate layer of the previously selected set. The first selected set includes the first layer to be cured and the sequential subsequent sets respectively include as the intermediate layer the subsequently cured adjacent layer.
摘要:
A synchronous tracking filter circuit for use in a broadcast satellite tuner that comprises four varactors and a strip-shaped inductor plate or pcb-printed strip line which produces a resonant frequency. The circuit is used in a doubly tuned resonant circuit to incorporate the tracking with the frequency changes of a voltage controlled oscillator (VCO) synchronously. The circuit can also control the image interference. This type of design is applicable in the tuner of an indoor broadcast satellite receiver unit to act as the synchronous tracking filter of input frequencies.