Abstract: A plasma display panel (PDP) and a method for driving the PDP. An ON/OFF pattern of an externally-inputted image signal is checked to sense a sustained discharge occurring in discharge cells respectively corresponding to scan electrodes included in a particular one of multiple scan electrode groups over a predetermined time. A control operation is carried out in response to the sensing of the sustained discharge to allow a discharge to occur in discharge cells respectively corresponding to scan electrodes included in the scan electrode groups other than the particular scan electrode group.

Abstract: A device for separating micro particles is provided. The separating device comprises a sample inlet into which a sample containing micro particles is injected; fluid inlets into which fluid is injected to form a flow sheath for the sample; a plurality of outlets through which the micro particles are separated and discharged out; a channel through which the sample and the fluid flow; and a first electrode and a second electrode longitudinally disposed in parallel in the channel. The first and the second electrodes are provided in such a manner that an electrode gap between the first and the second electrodes has a curved shape. The micro particles in the sample are easily separated using a dielectrophoresis characteristic.

Abstract: A remote robot control method using a three-dimensional pointing procedure and a robot control system using the remote robot control method. The robot control system controls a robot in response to a user's gesture or sign without modifying the structure of the robot. The remote robot control method includes measuring a distance between a remote controller and a robot, calculating an initial position of the remote controller in an inertial navigation frame of the remote controller, calculating an initial position of the robot in the navigation frame of the remote controller, calculating an origin of the inertial navigation frame of the remote controller shown in an inertial navigation frame of the robot, calculating a new position of the remote controller in the inertial navigation frame of the remote controller, and calculating a new position of the robot in the navigation frame of the robot.

Abstract: A plasma display apparatus including a plasma display panel, a chassis base coupled with the plasma display panel, a printed circuit board assembly coupled with the chassis base, a case housing the plasma display panel, the chassis base, and the printed circuit board assembly, and a liquid shielding plate for receiving liquid entering the apparatus.

Abstract: In a plasma display panel driving method, a final voltage of a falling ramp voltage is reduced to a voltage for firing a discharge at all the discharge cells in a reset period. A difference between a voltage at an address electrode of a discharge cell to be selected and a voltage applied to a scan electrode is established to be greater than a maximum discharge firing voltage in an address period. A voltage greater than a sustain voltage is applied to the scan electrode so as to convert positive wall charges which can be formed on the scan electrode of a discharge cell which is not selected in the address period into negative wall charges.

Abstract: An apparatus and a method for electromagnetically detecting microorganisms. The apparatus includes a pair of first electrodes which are positioned to be opposite to each other on a measuring cell and are connected to a power supply to generate an electric field around a solution contained in the measuring cell, a magnetic field generating unit which generates a magnetic field around the solution contained in the measuring cell in a perpendicular direction to the electric field, second electrodes which are positioned perpendicularly to both the electric field and the magnetic field, and a voltage measurer which measures the voltage generated between the second electrodes as the microorganisms move in the measuring cell. The apparatus determines the presence, quantity and identity of microorganisms with negative surface charge with improved sensitivity using the Hall effect.

Abstract: Disclosed are an apparatus and a method for detecting particles and microorganisms using a magnetic field. The apparatus comprises a magnetic sensor that is provided at an outside of a passage pipe and measures a magnetic field induced by fluid moving in the passage pipe; an electrode that is provided in the passage pipe so as to apply electric current having a predetermined frequency to the fluid moving in the passage pipe to measure impedance; and a signal processing unit that uses an intensity of the magnetic field measured by the magnetic sensor and the impedance measured by the electrode to determine concentrations of particles and microorganisms included in the fluid.

Abstract: Apparatus and method for a plasma display panel (PDP) for controlling power on external video data and generating power control data into N subfields to represent grays is provided having a plasma panel including a plurality of address electrodes, scan electrodes and sustain electrodes arranged in pairs with the address electrodes, a controller for performing power control on the video data to generate N subfields, generating subfield data and sustain pulse information corresponding to the respective subfields, and outputting a floating control signal for controlling a floating time according to the sustain pulse information, an address data driver for applying a voltage that corresponds to the subfield data to the address electrode, a sustain electrode driver for applying a voltage to the sustain electrode according to the sustain pulse information output by the controller, and a scan electrode driver for controlling the floating time according to the floating control signal, and applying a voltage to the sc

Abstract: A panel driving method in which a single TV field includes at least one reset period and at least one subfield and each of the at least one subfields includes an address period and a sustain period, includes supplying a variable reset pulse according to the length of a pause period in a previous or present TV field. A variable reset period is supplied according to the length of a pause period in a single TV field, so that a reset operation for preparing the address period is stably performed.

Abstract: A technique for driving a PDP, which includes scan and sustain electrodes arranged in pairs, data electrodes arranged alternately with the scan electrodes, and sub-fields for one TV field to display a multi-gradation, includes applying a reset pulse voltage to the sustain electrodes, applying a first voltage alternately to the scan electrodes and the sustain electrodes to cause a sustain discharge, and after applying a second voltage to the sustain electrodes or removing part of the first voltage applied to the sustain electrodes, applying third and fourth voltages to the scan electrodes and the data electrodes, respectively, before applying the first voltage, to erase wall charges in cells defined by the sustain electrodes, the data electrodes, and the scan electrodes.

Abstract: A plasma display panel sustain-discharge circuit. First and second signal lines for supplying first and second voltages and at least one inductor coupled between one end of the panel capacitor and a third voltage are formed. Energy is stored in the inductor through a path formed between the third voltage and the first signal line in a state where a voltage of one end of the panel capacitor is substantially fixed to the first voltage. The voltage of one end of the panel capacitor substantially decreases to the second voltage using resonance current generated between the inductor and the panel capacitor and the stored energy. Energy is stored in the inductor through a path formed between the third voltage and the second line in a state where a voltage of one end of the panel capacitor is substantially fixed to the second voltage.

Abstract: An audio generating apparatus includes: a sensor which senses a motion of a predetermined apparatus and generates a sensor signal corresponding to the sensed motion; a motion pattern recognizer which recognizes a motion pattern of the predetermined apparatus based on the sensor signal; and an audio signal generator which generates an audio signal corresponding to the motion pattern. The motion pattern recognizer includes: an analog-to-digital converter which converts the sensor signal into a digital sensor signal; and a motion pattern analyzer which analyzes the motion pattern of the predetermined apparatus based on the digital sensor signal. The audio signal generator includes: a storage medium which stores the motion pattern of the predetermined apparatus and audio signal data corresponding to the motion pattern; and a signal generator which extracts the audio signal data from the storage medium to generate the audio signal.

Abstract: A handwriting trajectory recognition system, having a motion detection unit adapted to output electric signals based on changes in acceleration of a body of the system in space. A control unit adapted to detect non-stroke regions intervals where the motions of the system body are temporarily stopped and recover handwritings based on the electric signals is provided.

Abstract: Disclosed is a PDP driving method which may include generating subfield information that shows ON/OFF states of discharge cells from among a plurality of subfields from input image signals, generating address information that shows ON/OFF states of the discharge cells per subfield from the subfield data, counting the number of the discharge cells that are ON from among the discharge cells from the address data, and controlling a waveform applied during a reset period of a subsequent subfield.

Abstract: In a plasma display panel driving method, a final voltage of a falling ramp voltage is reduced to a voltage for firing a discharge at all the discharge cells in a reset period. A difference between a voltage at an address electrode of a discharge cell to be selected and a voltage applied to a scan electrode is established to be greater than a maximum discharge firing voltage in an address period. A voltage greater than a sustain voltage is applied to the scan electrode so as to convert positive wall charges which can be formed on the scan electrode of a discharge cell which is not selected in the address period into negative wall charges.

Abstract: A PDP driving method. A falling ramp voltage is applied to a scan electrode so as to reset a state of wall charges of a discharge cell during a reset period. In this instance, a sustain electrode is maintained at a high voltage during an initial period for applying the falling ramp voltage, and the voltage at the sustain electrode is reduced to a normal voltage at a latter part of the period for applying the falling ramp voltage. Accordingly, the voltage applied to an address electrode is reduced in an address period since an erased amount of the wall charges of the address electrode is reduced during the reset period.

Abstract: A display device for displaying pictures by sequentially performing an address period and a sustain period. The panel pixels are arranged into groups, and an address period and a sustain period are sequentially performed on the pixels of individual groups. While an address period is being performed on the pixels of a group, the pixels of other groups are idle. While a sustain period is being performed on the pixels of the group subsequent to the address period, a sustain period is selectively performed on the pixels of other groups that have already undergone an address period. Accordingly, a sustain discharge operation is performed within a short time after an address operation is performed on the pixels, so that a stable sustain discharge occurs even though narrow scan pulses and address pulses may be applied during the address operation. Also, the time required to address all pixels is reduced.

Abstract: A display device for displaying pictures by sequentially performing an address period and a sustain period. The panel pixels are arranged into groups, and an address period and a sustain period are sequentially performed on the pixels of individual groups. While an address period is being performed on the pixels of a group, the pixels of other groups are idle. While a sustain period is being performed on the pixels of the group subsequent to the address period, a sustain period is selectively performed on the pixels of other groups that have already undergone an address period. Accordingly, a sustain discharge operation is performed within a short time after an address operation is performed on the pixels, so that a stable sustain discharge occurs even though narrow scan pulses and address pulses may be applied during the address operation. Also, the time required to address all pixels is reduced.

Abstract: In a method of driving a discharge display panel, each subfield may include a first address period, a first display-sustain period, a second address period, and a second display-sustain period. In the first address period, a predetermined wall voltage may be generated in display cells selected from the display cells of the first display electrode-line pair group. In the first display-sustain period, display-sustain discharge may occur during a time proportional to a gray scale weight of each of the subfields in the selected display cells of the display cells of the first display electrode-line pair group when the first address period has elapsed. In the second address period, a predetermined wall voltage may be generated in display cells selected from the display cells of the second display electrode-line pair group when the first display-sustain period has elapsed.

Abstract: A method for driving a discharge display panel provides at least a first type sub-filed and a second type sub-field that are used alternately over the span of at least a sub-field. The first type sub-field sequentially includes an addressing time for a first display electrode-line group, a display-sustain time for the first display electrode-line group, an addressing time for a second display electrode-line group, and a display-sustain time for the first display electrode-line group and the second display electrode-line group. Each of the second type sub-fields sequentially includes an addressing time for a second display electrode-line group, a display-sustain time for the second display electrode-line group, an addressing time for the first display electrode-line group, and a display-sustain time for the first display electrode-line group and the second display electrode-line group.