Abstract: A driving apparatus of a plasma display panel includes an energy recovery circuit. The energy recovery circuit recovers charging/discharging energies of a panel capacitor to a power source supplying unit using a transformer according to charging/discharging operations of the panel capacitor. It includes a first controlling switch, a second controlling switch, and a transformer. The second controlling switch is connected between the panel capacitor and the power source supplying unit and switched according to an external control signal to control the energy recovery from the panel capacitor to the power source supplying unit. The first controlling switch is connected between the panel capacitor and the power source supplying unit and switched according to an external control signal to control the energy recovered in the power source supplying unit to be supplied to the panel capacitor.

Abstract: A built-in antenna having a center feed structure for wireless terminal. The antenna includes: a feeding means for providing an electromagnetic signal; and a radiating means for radiating the electromagnetic signal, wherein the feeding means is located on a point ranging from a midpoint of the antenna. The antenna radiates a nondirectional signal and can be embedded in a wireless terminal.

Abstract: The present invention relates to an impedance transformation-type wide band internal antenna. The wide band antenna includes a radiation part, a short circuit part, a feeding part, and a feeding pin. The radiation part is formed to have a predetermined length and width according to an operating frequency, the radiation part including a plurality of stubs formed in arbitrary shapes according to location of a plurality of slots. The short circuit part causes part of a side surface of the radiation part to be connected to an external ground. The feeding part is extended from the stubs, formed on the side surface of the radiation part to be adjacent to the short circuit part, and is bent multiple times, the feeding part being formed on a bottom surface of the radiation part to have a predetermined length and width. The feeding pin is formed on an end of the feeding part and is fed with current.

Abstract: In an address driving circuit including a power recovery circuit, an energy charged in an external capacitor is established to be greater than an energy discharged from the external capacitor. As a result, a voltage of the external capacitor is increased to an address voltage to automatically stop a power recovery operation in the case of displaying a full white pattern. Further, to perform the power recovery operation in the cases of the dot on/off pattern and the line on/off pattern, the voltage of the external capacitor reaches an equilibrium state between the half the address voltage and the address voltage.

Abstract: An antenna of a mobile communication terminal has a plate-shaped dielectric; a conductor line formed to the dielectric and having a leading end connected to a transceiving section of the mobile communication terminal and a terminal end extendingly formed into a shape curved from the leading end and located at a middle part of the plate-shaped dielectric; and an assistance radiator electrically connected to the terminal end of the conductor line and mounted to surround the plate-shaped dielectric. According to the antenna, since there is provided the assistance radiator, it is possible to shorten the length of the antenna while maintaining the overall length of the conductor line to be same and to improve the average radiation gain of the antenna.

Abstract: A method for detecting failure of database patterns of a photo mask including designing the database patterns of the photo mask according to a design rule of a semiconductor element; performing optical proximity correction (OPC) of the designed database patterns; and detecting failure of the database patterns by obtaining a plurality of bias values based on at least two space widths according to each of line critical dimensions (CDs) of the designed database patterns and by detecting the shape of the pattern having the optimum bias value. The method applies different space widths to the patterns according to critical dimensions of lines of the patterns of the photo mask to preliminarily detect patterning failure varied according to illuminating systems, sub-films, and thicknesses of resist, and to correct failure of the patterns, such as collapse or bridges of the patterns, generated from the different lengths of patterns lines having the same critical dimension, using different bias values.

Abstract: A plasma display panel driving apparatus that applies a voltage to a first electrode of a panel capacitor, comprising an inductor, a first switch, a second switch, a reset driver which applies a reset voltage to the first electrode in a reset period, a third switch, and a fourth switch. The plasma display panel driving apparatus forms a switching unit that applies a sustain voltage to Y electrodes in front of a scan IC and reduces a sustain discharging path.

Abstract: An apparatus for driving a plasma display panel including scan electrodes, sustain electrodes, and panel capacitors formed between the scan electrodes and the sustain electrodes is disclosed In one embodiment, the apparatus includes a scan integrated circuit for supplying a scan voltage to the scan electrodes, a sustain discharge voltage generator for applying the first voltage and the second voltage to the scan electrodes, and a rising reset waveform generator for applying a rising reset waveform rising from a third voltage to a fourth voltage to the scan electrode. In the plasma display panel according to the present invention, a transistor for applying a rising reset waveform is coupled to a transistor to eliminate a conventional main switch.

Abstract: In an address driving circuit including a power recovery circuit, an energy charged in an external capacitor is established to be greater than an energy discharged from the external capacitor. As a result, a voltage of the external capacitor is increased to an address voltage to automatically stop a power recovery operation in the case of displaying a full white pattern. Further, to perform the power recovery operation in the cases of the dot on/off pattern and the line on/off pattern, the voltage of the external capacitor reaches an equilibrium state between the half the address voltage and the address voltage.

Abstract: Disclosed is a driver for a PDP including discharge cells with a plurality of electrodes, which may include the following: a first voltage source having a first voltage level; a first active element for intercepting a current flow in the direction of the first voltage source; a first switch coupled between the first active element and an electrode; a capacitor for storing a second voltage; and a second switch for supplying the second voltage stored in the capacitor to the electrode. The first active element and the first switch may each be transistors, and they may be coupled together, back-to-back.

Abstract: A driving apparatus of a plasma display panel includes an energy recovery circuit. The energy recovery circuit recovers charging/discharging energies of a panel capacitor to a power source supplying unit using a transformer according to charging/discharging operations of the panel capacitor. It includes a first controlling switch, a second controlling switch, and a transformer. The second controlling switch is connected between the panel capacitor and the power source supplying unit and switched according to an external control signal to control the energy recovery from the panel capacitor to the power source supplying unit. The first controlling switch is connected between the panel capacitor and the power source supplying unit and switched according to an external control signal to control the energy recovered in the power source supplying unit to be supplied to the panel capacitor.

Abstract: An apparatus and method for driving a plasma display panel (PDP) where a switch device can perform zero voltage switching in driving the PDP. The apparatus for driving the PDP includes a sustain-discharge unit including first through fourth switches respectively connected to both ends of a panel capacitor between a power source and ground, for sustaining a panel capacitor terminal voltage to be at a first or a second sustain-discharge voltage; a first charge and discharge unit including a first inductor, for increasing the voltage of the panel capacitor to the first sustain-discharge voltage and switching a first switch in a state of a zero voltage by half of a resonance current generated by the first inductor; and a second charge and discharge unit including a second inductor, for decreasing the voltage of the panel capacitor to the second sustain-discharge voltage and switching a third switch in a state of the zero voltage by half of a resonance current generated by the second inductor.

Abstract: Disclosed is an apparatus and method for driving a plasma display panel (PDP) where a switch device can perform zero voltage switching in driving the PDP. The apparatus for driving the PDP includes a sustain-discharge unit including first through fourth switches respectively connected to both ends of a panel capacitor between a power source and ground, for sustaining a panel capacitor terminal voltage to be at a first or a second sustain-discharge voltage; a first charge and discharge unit including a first inductor, for increasing the voltage of the panel capacitor to the first sustain-discharge voltage and switching a first switch in a state of a zero voltage by half of a resonance current generated by the first inductor; and a second charge and discharge unit including a second inductor, for decreasing the voltage of the panel capacitor to the second sustain-discharge voltage and switching a third switch in a state of the zero voltage by half of a resonance current generated by the second inductor.

Abstract: Disclosed is a cloth structure having waterproof and moisture-permeable properties for waders, which is treated to be waterproof so as to prevent outside water from passing through the wader, but thermally insulating and breathable so as to permit water vapor from the inside to be eliminated while being stretchable in each direction and possessing a soft feeling, thereby providing a good wearing feeling for the wearer without impeding the wearer's activity.

Abstract: A pedal driving mechanism for a bicycle which contains structurally improved pedal arms on which pedals are installed to increase the rotary radius of the pedals during the running of the bicycle to obtain optimum driving energy with minimum physical energy consumption, wherein the structure of pedaling mechanism defines a joining line formed by the tooth-coupling of a fixing gear and a rotary gear with the axle line of a driving arm at a right angle, and the trace of the linkage formed by a connection arm and a connection link is set to move in a spiral motion forced to rotate with respect to the center of the fixing gear.

Abstract: A pedal driving mechanism for a bicycle which contains structurally improved pedal arms on which pedals are installed to increase the rotary radius of the pedals during the running of the bicycle to obtain optimum driving energy with minimum physical energy consumption, wherein the structure of pedaling mechanism defines a joining line formed by the tooth-coupling of a fixing gear and a rotary gear with the axle line of a driving arm at a right angle, and the trace of the linkage formed by a connection arm and a connection link is set to move in a spiral motion forced to rotate with respect to the center of the fixing gear.

Abstract: A method for controlling call under use of ATM transfer capabilities call gap during the overload of an ATM switching network. The method comprises the steps of accepting a high priority call need first by means of call priority in a given time gap; and accepting the call in an order of DBR, SBR, ABR (ABT), and UBR service, in case that the call priority is the same, or in case that there is no call priority.

Abstract: A variable pedal driving device for a bicycle, the device allowing the bicycle pedals to slide along crankshafts during operation of the device. Each pedal is coupled to a slide pipe slidably mounted on a crankshaft. The slide pipe is in turn connected to an eccentric member mounted on the main shaft of the driving device. When a pedal is driven in a forward direction, the eccentric member causes the pedal to extend out to a maximum distance from the main shaft, for more efficient driving of the bicycle.

Abstract: Methods for performing origination and termination processes to control reserved semi-permanent virtual path connections in an asynchronous transfer mode virtual path switching system. A service can flexibly be provided based on semi-permanent virtual path connection information for a desired time in response to a reserved semi-permanent virtual path registration command received through an operator interface during the operation of the system. Also, the reserved semi-permanent virtual path connections can be controlled up to 256 per subscriber link of 155 Mbps class. A subscriber service using time is designated and resources in a network are occupied only for the designated time. Therefore, a plurality of subscribers are set at different service time zones in such a manner that the network resources can be utilized at the maximum at each service time zone.

Abstract: A front panel assembly of a microwave oven which can improve the appearance and strength of the oven and a method for assembling the same are disclosed. The assembly includes a front panel frame and a reinforcement plate attached to the front panel frame and made of a metal such as stainless steel or synthetic resin. The assembly is assembled to a door frame or a front panel section of the oven. The front panel frame is formed with a recess into which the reinforcement plate is attached. The reinforcement plate is attached to the recess by using a double-sided adhesive tape or by a heat-treatment. The welding lines and non-homogeneous colors formed at the door frame and the front panel frame can be hidden and the strength of the oven increases.