Abstract: A circuit breaker for detecting overload is disclosed. The circuit breaker detects an overload condition electrically without using bimetal. The circuit breaker for detecting overload includes an arc fault detector and a discharge controller. If arc fault occurs, the discharge controller discharges voltage charged in a capacitor. Therefore, the circuit breaker does not trip the circuit when arc fault occurs although high current flows on a conductor. Further, the circuit breaker for detecting overload includes a charging time constant controller so that charging time is varied according to current flowing on the conductor.

Abstract: A power consumption control apparatus and a method thereof in the PDA phone comprise: transiting the PDA phone from an idle mode to a sleep mode automatically after a certain amount of time or by user's input signal; transiting the PDA phone from a called mode to the sleep mode automatically after a certain amount of time or by user's input signal; transiting the PDA phone from a calling mode to the sleep mode automatically after a certain amount of time or by user's input signal; and transiting the PDA phone from an in-call mode to the sleep mode automatically after a certain amount of time or by user's input signal, so that the power consumption control apparatus and the method thereof in a personal digital assistant (PDA) phone in accordance with the present invention can reduce power consumption of the PDA phone by transiting the PDA phone from a called mode, an in-called mode and a calling mode to a sleep mode, and cope with the circumstances which may occur in every state of the PDA phone.

Abstract: Disclosed are a modem sharing device of a PDA phone capable of efficiently sharing a modem by constructing one parsing module respectively attached to a plurality of applications of the PDA phone in order to parse commands of the plurality of applications, and a method thereof. The modem sharing device of a PDA phone comprises: a plurality of applications; one parsing module for parsing commands generated by the plurality of applications and distributing; a transmission module for transmitting the distributed commands through one port; and a modem for receiving the transmitted commands.

Abstract: An apparatus and method for identifying and recognizing a connection of a portable digital camera or an ear-microphone when the portable digital camera or the ear-microphone is connected to a mobile communication terminal through its single external input terminal are disclosed. When any jack is inserted into a jack connector of the mobile communication terminal, a jack sensor outputs a sensing signal to a controller. When the controller receives the sensing signal, it controls a switching unit having switches. If there is data to be inputted from the jack connector within a predetermined time period, the controller recognizes that the digital camera has been connected to the jack connector and then changes an operating mode to a camera mode. On the other hand, if there is no data to be inputted from the jack connector for the predetermined time period, the controller recognizes that the ear-microphone has been connected to the jack connector and then changes the operating mode to an ear-microphone mode.

Abstract: A mobile communication terminal with three-dimensional surround-sound effect system has a data processing section for coding and modulating a transmitting signal or demodulating and decoding a receiving signal, and an audio processing section for reproducing an audio signal input from the data processing section or transferring the audio signal input from a microphone to the data processing section. The audio signal has a first audio signal for one speaker and a second audio signal for the other speaker. A first audio path has a first amplifier for amplifying the first audio signal and a first delay for delaying in phase the first audio signal, and a second audio path has a second amplifier for amplifying the second audio signal and a second delay for delaying in phase the second audio signal. A voltage measurer measures the voltage of the first and second audio signals. A comparator compares the first and the second audio signals.

Abstract: A method is provided of producing a hardmetal-bonded metal component with an enhanced bond strength. The method comprises the steps of providing an iron-based metal body, mixing and compressing raw material powder of hardmetal and binder powder containing nickel, silicon and boron into a preform, heating and sintering the preform, and applying heat to the sintered body and the iron-based metal body under a state that the sintered body is brought into contact with the iron-based metal body, to thereby cause the sintered body to be bonded to the iron-based metal body. The sintered body and the iron-based metal body are thermally treated at a temperature of 1,000 to 1,200° C. for 30 or more minutes so that boron present in the sintered body is infiltrated into grain boundaries of the iron-based metal body to form a plurality of boride spikes in a bonding interface.

Abstract: A control system for a seatbelt retractor for a seatbelt retractor is to perform the operating performance test of the retractor mounted on a holder structure with at least one sensor and a locking device cooperating therewith throughout a wider range of tilt angle using a PLC, in which the control system includes a motor control portion connected to the PLC to control the rotation of motors at a tilt angle to be inputted in advance; a rotary cylinder control portion for controlling the rotating of a rotary cylinder in order to rotate a spool of the retractor; a stamping control portion for controlling the operating timing of a stamping portion; a memory for enabling various control operations of the PLC; a data register for storing digital data code values corresponding to a plurality of tilt angles; and a multi-axle motion controller for computing the digital data values, therefore enabling the tilt angle of the retractor to be tested with the holder structure being slanted.

Abstract: a control system of a factory automation facility for a seatbelt retractor assembly comprising a factory automation facility and a control portion for controlling the operating of all parts in the factory automation facility, integrally, to enable the mass-production of a seatbelt retractor assembly, in which the factory automation facility comprises a webbing throwing-in portion for throwing-in a webbing of a strip type thereinto by a first webbing supplying portion; first and second webbing position determining devices for guiding the webbing to pass through the hole of a retractor spool, a webbing withdrawing portion including a second webbing supplying portion and a case to withdraw the webbing and store it for a while, first and second part supplying portions for assembling a tongue, a guide ring and a ring mount on the withdrawn webbing, a stopper fixing portion including a third webbing supplying portion for carrying the webbing to a webbing folding portion, upper and lower stopper suppliers for supply

Abstract: A circuit breaker for detecting overload is disclosed. The circuit breaker detects an overload condition electrically without using bimetal. The circuit breaker for detecting overload includes an arc fault detector and a discharge controller. If arc fault occurs, the discharge controller discharges voltage charged in a capacitor. Therefore, the circuit breaker does not trip the circuit when arc fault occurs although high current flows on a conductor. Further, the circuit breaker for detecting overload includes a charging time constant controller so that charging time is varied according to current flowing on the conductor.

Abstract: A method is provided of producing a hardmetal-bonded metal component with an enhanced bond strength. The method comprises the steps of providing an iron-based metal body, mixing and compressing raw material powder of hardmetal and binder powder containing nickel, silicon and boron into a preform, heating and sintering the preform, and applying heat to the sintered body and the iron-based metal body under a state that the sintered body is brought into contact with the iron-based metal body, to thereby cause the sintered body to be bonded to the iron-based metal body. The sintered body and the iron-based metal body are thermally treated at a temperature of 1,000 to 1,200° C. for 30 or more minutes so that boron present in the sintered body is infiltrated into grain boundaries of the iron-based metal body to form a plurality of boride spikes in a bonding interface.

Abstract: An overload circuit interrupter (OLCI), and a circuit breaker with the same, which diminish erroneous operation from being caused by a dimmer. The OLCI detects overload in an AC electrical wiring system and produces an overload trip signal that shuts the AC source off. The OLCI includes a current transformer that produces the overload voltage in accordance with current variations in phase and neutral conductors. The OLCI also includes a rectifier for rectifying of the overload voltage, a level controller for limiting the rectified overload voltage, an integrator for charging the limited overload voltage and for providing overload indicative signal, and a comparator. The comparator compares the overload indicative signal with a reference overload voltage and produces the overload trip signal that shuts the AC source off. The circuit breaker may further include an arc fault circuit interrupter (AFCI) and a ground fault circuit interrupter (GFCI).

Abstract: A device for detecting arc fault which distinguishes harmful arc from the signal generated by operation of a dimmer and start of electronic devices. Signals outputted from a current transformer is attenuated by a resistor which is coupled in parallel to the current transformer. By the attenuation of the resistor, the signal generated by the operation of a dimmer is not determined to be arc in arc determining part. Harmful arc and the signal generated by the start of the electronic device are distinguished by integrating both signals. As the harmful arc lasts for a long time, large signals are integrated in an integrator while the signal generated by the start of electronic device does not last for a long time.

Abstract: A circuit breaker which displays electronically state of the circuit breaker and the cause of the disconnection which enables users to determine whether to reconnect a conductor which connects a source and a load in power distribution system. An arc display part is coupled to an arc fault detector, a ground display part is coupled to a ground fault detector and an overload display part is coupled to an overload detector. If arc fault occurs, the arc fault detector generates a trip signal and the trip signal is provided to the arc display part. As the trip signal from the arc fault detector is not provided to the ground display part and the overload display part, users can determine that arc fault has occurred by the lighting of the arc display part.

Abstract: a control system of a factory automation facility for a seatbelt retractor assembly comprising a factory automation facility and a control portion for controlling the operating of all parts in the factory automation facility, integrally, to enable the mass-production of a seatbelt retractor assembly, in which the factory automation facility comprises a webbing throwing-in portion for throwing-in a webbing of a strip type thereinto by a first webbing supplying portion; first and second webbing position determining devices for guiding the webbing to pass through the hole of a retractor spool, a webbing withdrawing portion including a second webbing supplying portion and a case to withdraw the webbing and store it for a while, first and second part supplying portions for assembling a tongue, a guide ring and a ring mount on the withdrawn webbing, a stopper fixing portion including a third webbing supplying portion for carrying the webbing to a webbing folding portion, upper and lower stopper suppliers for supply

Abstract: A control system for a seatbelt retractor for a seatbelt retractor is to perform the operating performance test of the retractor cooperated with at least one sensor and a locking apparatus with respect to a wider range of tilt angles by a PLC control method so as to promote the plant automation and perform a series of the performance test of the retractor at once.

Abstract: A circuit breaker which displays eletronically state of the circuit breaker and the cause of the disconnection which enables users to determine whether to reconnect a conductor which connects a source and a load in power distribution system. An arc display part is coupled to an arc fault detector, a ground display part is coupled to a ground fault detector and an overload display part is coupled to an overload detector. If arc fault occurs, the arc fault detector generates a trip signal and the trip signal is provided to the arc display part. As the trip signal from the arc fault detector is not provided to the ground display part and the overload display part, users can determine that arc fault has occurred by the lighting of the arc display part.

Abstract: A device for detecting arc fault which distinguishes harmful arc from the signal generated by operation of a dimmer and start of electronic devices. Signals outputted from a current transformer is attenuated by a resistor which is coupled in parallel to the current transformer. By the attenuation of the resistor, the signal generated by the operation of a dimmer is not determined to be arc in arc determining part. Harmful arc and the signal generated by the start of the electronic device are distinguished by integrating both signals. As the harmful arc lasts for a long time, large signals are integrated in an integrator while the signal generated by the start of electronic device does not last for a long time.

Abstract: The present invention relates to overload circuit interrupter capable of detecting overload and interrupting the overload circuit interrupter, and to a circuit breaker with the same. The overload circuit interrupter (OLCI) in an electrical wiring system includes a current transformer for producing an overload voltage in accordance with the current variation of the phase and neutral conductor, a rectifier for rectifying of the overload voltage, a level controller for limiting the rectified overload voltage, an integrator for charging the limited overload voltage and for providing overload indicative signal, and a comparator for comparing the overload indicative signal with a reference overload voltage and for producing an overload trip signal shutting the AC source off. It can diminish error triggering caused by a dimmer. The circuit breaker may further include an arc fault circuit interrupter (AFCI) and a ground fault circuit interrupter (GFCI).