Abstract: An optical fiber connector includes front and back fasteners, and an end socket. The front fastener includes a front body and a pressing part. A first lateral wall of the front body has a first engaging hole and a second opposite lateral wall thereof has a second engaging hole. The back fastener includes a back body and an assembling part. The front portion of the back body is coupled with a back portion of the front body and the back body has first and second engaging blocks. The first and second engaging blocks are coupled respectively with the first and second engaging holes. The first engaging hole is sized differently from the second engaging hole. The assembling part is disposed on a back portion of the back body. An end socket has a front portion secured to the assembling part, and a back portion that has a terminal.

Abstract: The present invention relates to a lithium ion capacitor having excellent capacitance characteristics and high energy density. More particularly, the present invention relates to a cathode active material for a lithium ion capacitor, which utilizes a lithium composite metal oxide having a large initial irreversible capacitance as a specific cathode additive in addition to a carbon-based material applied as a cathode active material, and a production method thereof, and a lithium ion capacitor including the same. According to the present invention, lithium can be electrochemically doped on an anode without using metal lithium, and the capacitance characteristics of a lithium ion capacitor and the safety of a lithium-doping process can be significantly improved.

Abstract: A ZnO surge arrester for high-temperature operation is characterized in that a grain boundary layer between ZnO grains thereof contains a BaTiO3-based positive temperature coefficient thermistor material, which takes 10-85 mol % in the overall grain boundary layer, and when operating temperature raises, the positive temperature coefficient thermistor material in the grain boundary layer has its resistance sharply increasing with the raising temperature, so as to compensate or partially compensate decrease in resistance of components in the grain boundary layer caused by the raising temperature, thereby making the resistance of the grain boundary layer in the ZnO surge arrester more independent of temperature. The ZnO surge arrester thus is suitable for operation where a maximum operating temperature is higher than 125° C., or even higher than 150° C.

Abstract: The present invention discloses a soft gum fingerstall oximeter without pivot structure, the soft gum fingerstall oximeter comprises a soft gum fingerstall which can wraps around a finger closely with variations of the profile of the finger and causes a clamping force distributed on the clamped portion of the finger uniformly. An emission circuit board and a reception circuit board are provided in the soft gum fingerstall. The soft gum fingerstall of the oximeter is enclosed, which can shield light entering from a side.

Abstract: A magnetic field communication method is provided for managing node with low power consumption which enhances performance and efficiency of a magnetic field area network in the low frequency region. The magnetic field communication method for managing node with low power consumption of the present invention is accomplished in a low-frequency wireless network that is comprised of a MFAN-C and at least one MFAN-N wherein a physical layer is comprised of a preamble, a header, and a payload, and the preamble is comprised of a wake-up sequence and a synchronization sequence. The wake-up sequence is only added to the preamble of the frame that is transmitted from the MFAN-C when the MFAN-N is being activated from the hibernation mode. The wake-up sequence is modulated using ASK modulation, and the synchronization sequence is modulated using BPSK modulation.

Abstract: The present invention relates to a combustion control device incorporated in an apparatus such as water heater and provides the combustion control device having an improved configuration with a main controller and a sub controller, capable of employing a microcomputer with lower capability as the sub controller, and ensuring higher safety than ever before. Signals indicating a combustion state of a combustion apparatus are inputted into the main controller 35 and the sub controller 36 in parallel. Upon fulfillment of a predetermined condition of stopping, the main and sub controllers 35 and 36 each output a stop signal to cut off a current to be supplied to a device driving circuit 42. The conditions of stopping in outputting of the stop signal by the main and sub controllers are such that the sub controller 36 is less apt to execute the cutoff than the main controller 35.

Abstract: Disclosed are an anode active material, a non-aqueous lithium secondary battery, and a preparation method thereof. The surface of a carbonaceous material is modified without using an electrolyte additive, and the reactivity and structural stability of the surface is improved, thereby obtaining long lifetime characteristics without deteriorating charge/discharge efficiency and rate characteristics when applied as an anode active material of a non-aqueous lithium secondary battery. The anode active material comprises a carbonaceous material, and a coating layer formed on the surface of the carbonaceous material through hetero atom substitution, wherein the hetero atom can be phosphorus (P) or sulfur (S). A side reaction with an electrolyte on the surface of the carbonaceous material is inhibited and the structural stability of the surface is enhanced by forming a coating layer on the surface of the carbonaceous material with a hetero atom such as phosphorus (P) or sulfur (S).

Abstract: A DC block is provided. The present DC block includes a first microstrip line of which one end is connected to a first signal line and of which the other end is bent; and a second microstrip line of which one end is connected to a second signal line, and of which the other end is bent, wherein the second microstrip line is placed parallel to the first microstrip line. Accordingly, the size of the DC block is reduced by at least half.

Abstract: Disclosed are an apparatus and a method for detecting a broadcasting signal. The signal detecting apparatus according to the exemplary embodiment of the present invention includes: a reference signal generator outputting a reference signal acquired by performing a correlation calculation between a current sample and a previous sample of a received signal which is an FM signal or a digital radio mondiale plus (DRM+) signal and then normalizing a result of the correlation calculation; and a discriminator detecting a maximum value of the reference signal and judging that the received signal is the FM signal when the maximum value of the reference signal is more than a predetermined threshold.

Abstract: A motor includes: a first slot and a second slot in which a first current having the same phase flows, the first slot including a first coil end portion in which a current flows in a first direction and a second coil end portion in which a current flows in the opposite direction of the first direction, and the second slot including a third coil end portion in which a current flows in the second direction and a fourth coil end portion in which a current flows in the first direction, a stator forming a fixed magnetic field by the first current, and a rotor forming a rotating field and rotated according to an interaction with the fixed magnetic field formed by the stator.

Abstract: An inverter apparatus having a power supply circuit includes a converter circuit for rectifying AC power into DC power, a smoothening circuit for smoothening the rectified DC power, an inverter circuit for converting the smoothened DC into AC at a variable frequency through a plurality of switches to control a load, and a current detection circuit for detecting overcurrent from the smoothened DC supplied from the inverter circuit, wherein the inverter circuit applies bootstrap power for driving the switches to the current detection circuit to use the bootstrap power as power of the current detection circuit. When bootstrap power for driving switch gates is used, it is possible to use the bootstrap power as the power of the current detection circuit by adding the auxiliary circuit composed of a small number of passive elements.

Abstract: Provided is a lancing device in which two guide rails and washing robots are installed in both directions of a hand hole, and each washing robot removes precipitates from the center of a steam generator, and therefore precipitates do not flow backwards, thereby completely removing precipitates.

Abstract: A band pass filter is provided. The band pass filter includes a first resonator which includes a first pattern and first microstrip line; a second resonator which includes a second pattern and second microstrip line; a third pattern vertically arranged between the first pattern and second pattern; and a ground pattern connected with the third pattern, embodying a band pass filter using a resonator having a length of 1/16 wavelength or less, instead of a resonator having a length of ¼ wavelength.

Abstract: The disclosure relates to an anode active material, a non-aqueous lithium secondary battery, and a manufacturing method thereof. The anode active material of this disclosure comprises a carbon-based material, and a coating film formed on the surface of the carbon-based material by performing heat treatment using an ammonia-based compound. The coating film may be formed on the surface of the carbon-based material through a thermal decomposition method using 10% or less by weight of the ammonia-based compound with respect to the carbon-based material. Since the surface of the carbon-based material is thermally treated using the ammonia-based compound, side reaction of the carbon-based material with an electrolyte at the surface thereof can be suppressed and structural stability can be enhanced, thereby improving battery lifespan and high-rate capability of a non-aqueous lithium secondary battery.

Abstract: An impedance matching circuit is provided. The present impedance matching circuit is able to match impedance using a transformer which is arranged inside a dielectric substrate and arranged to overlap with a bonding pad area and an end of a transmission line, thereby enabling transmitting signals at a desired frequency with a minimum insertion loss without using a very thin transmission line which is several to dozens of ?m wide or specially designed antennas in order to compensate for inductance. Thus, the present impedance matching circuit may be applied to various millimeter bands.

Abstract: An object priority order compositor for an MPEG-4 player having a drawing node list generator including an object priority order register, a drawing node extractor, a field-node extractor, and an object priority order manager including an object rendering sequencer and an object instruction manager. The drawing node list generator makes a list by receiving a scene tree from a parser manager and extracting drawing nodes necessary for presentation on a screen from the scene tree by a depth first search. The object priority order manager handles insert, delete, and replace commands received from scene constitution information to determine priority order of an object. The object priority order compositor performs presentation of objects based on a priority order for objects when a scene change, in which an object is inserted, deleted, or replaced in real time by user interaction, as required in an MPEG-4 scene of high capacity multimedia objects.

Abstract: A contact including an ohmic layer and a reflective layer located on the ohmic layer is provided. The ohmic layer is transparent to radiation having a target wavelength, while the reflective layer is at least approximately eighty percent reflective of radiation having the target wavelength. The target wavelength can be ultraviolet light, e.g., having a wavelength within a range of wavelengths between approximately 260 and approximately 360 nanometers.

Abstract: A down-frequency conversion circuit and up-frequency conversion circuit, and a receiver and transmitter applying the same are provided. The down-frequency conversion circuit includes a harmonic mixer and general mixer, and thus becomes able to convert frequency using one LO (Local Oscillator) frequency, thereby reducing burden on generating LO frequency.

Abstract: A filter method and an apparatus of a low complexity Finite Impulse Response (FIR) filter, and a recording medium thereof are provided. A filtering method of the low complexity FIR filter includes filtering input signals using 2N-ary filters by dividing 2N-ary filter coefficients into even filter coefficients and odd filter coefficients; filtering using a (2N+1)-th filter and the input signals; and adding up a filtering result of the 2N-ary filters and a filtering result of the (2N+1)-th filter. Hence, by reducing the computations of the FIR filter, the FIR filter with the optimal performance can be realized.

Abstract: A composite contact for a semiconductor device is provided. The composite contact includes a DC conducting electrode that is attached to a semiconductor layer in the device, and a capacitive electrode that is partially over the DC conducting electrode and extends beyond the DC conducting electrode. The composite contact provides a combined resistive-capacitive coupling to the semiconductor layer. As a result, a contact impedance is reduced when the corresponding semiconductor device is operated at high frequencies.