摘要:
A system and method for state synchronization between a base station and a mobile station in a mobile communication system. A count value indicative of a state change of the base station is received. The received current count value is compared with a previous count value previously received and stored. If the current count value is different from the previous count value, the mobile station performs a network entry procedure with the base station.
摘要:
A projection device capable of automatically controlling on/off of a projection module for projecting display data onto an exterior surface according to an open/closed state of a cover of the projection module, and an operation method thereof are provided. The method for operating a projection module in a projection device includes turning-on the projection module when a first detection signal is detected, wherein the first detection signal is generated when a cover of the projection module is open, and after the projection module is turned on, turning-off the projection module when a second detection signal is detected, wherein the second detection signal is generated when a cover of the projection module is closed.
摘要:
An apparatus in a Base station (BS) and an apparatus in a Mobile Station (MS) are provided for allocating and requesting, respectively, uplink resources in a wireless communication system. The apparatus in the MS includes a transmitter for sending, to a base station, a predetermined Channel Quality Information CHannel (CQICH) codeword over a pre-allocated CQICH in a silence period, when an uplink bandwidth for an extended real-time Polling Service (ertPS) is not allocated to the mobile station, to inform the base station that the mobile station has data to send; and a receiver for receiving, from the base station, information related to an uplink bandwidth supporting a maximum rate allocated by the base station, in response to the CQICH codeword.
摘要:
Disclosed herein is an electric generating system using a solar cell which converts a voltage generated in the solar cell into an Alternating Current (AC) voltage, and applies the converted voltage to a power system. The electric generating system includes; a Direct Current (DC)/DC converter that converts the voltage generated in the solar cell into a DC voltage, and has a synchronous rectifier including a synchronous switch; and a controller that detects one of a phase and a voltage of the power system, and selectively connects the synchronous switch of the synchronous rectifier in accordance with one of the phase and voltage of the power system. Here, the electric generating system reduces a conduction loss, and increases overall efficiency of the electric generation system.
摘要:
A transportation apparatus configured to travel on rails and having an induced freezing rail system includes: a transportation vehicle having a support unit configured to support a frame from the rails; and a freezing rail system comprising freezing rails positioned on a ground surface corresponding to the support unit of the transportation vehicle, the freezing rails having a refrigerant and cooling devices.
摘要:
A liquid crystal display device includes: a liquid crystal panel that displays images using a plurality of pixels each including red, green and blue sub-pixels; a gate driving portion that supplies a gate signal to the liquid crystal panel; a data driving portion that supplies a data signal to the liquid crystal panel; and a timing control portion that compares difference of gray level between image signals corresponding to the red, green and blue sub-pixels with a first threshold value and compares difference of gray level between the image signals corresponding to the red, green and blue sub-pixels of neighboring pixels of the plurality of pixels in order to judge type of the image signals, and drives the data driving portion in different methods according to the type of the image signals.
摘要:
Disclosed are a novel phenol compound comprising a compound represented by Chemical Formula 1, a compound represented by Chemical Formula 2, or a combination thereof, and a positive photosensitive resin composition including the same.
摘要:
Provided is a battery pack, which can increase coupling force between a holder and a protection circuit board, and improve processability and productivity. The battery pack includes a bare cell, a holder disposed at one side of the bare cell and having a first fastening part, and a protection circuit assembly disposed at one side of the holder and having a second fastening part coupled to the first fastening part, wherein one of the first and second fastening parts is a protrusion and the other is a groove, and the protrusion includes a first supporting surface, a second supporting surface and a notch formed between the first and second supporting surfaces. Also, the battery pack includes a bare cell, a holder disposed at one side of the bare cell and having a first fastening part, and a protection circuit assembly disposed at one side of the holder and having a second fastening part coupled to the first fastening part, wherein the first fastening part is a first protrusion and the second fastening part is a second protrusion, and one of the first and second protrusions includes a first supporting surface, a second supporting surface and a notch formed between the first and second supporting surfaces and the other is formed in the shape of a square pillar.
摘要:
The present invention relates to a coupling structure of glasses frames and glasses legs in which the frames and the legs can be easily coupled or uncoupled to/from each other, which enables lenses to be easily coupled to the frames, and which provides elasticity when the legs are folded or unfolded. The coupling structure of the present invention includes: a hinge piece tightly inserted between end pieces split at a distal end of the frames such that the hinge piece protrudes, wherein the hinge piece has a stopper groove; an elastic member having a slot for the insertion of the hinge piece; and legs having a rotation pin and an operating slot such that a front end of the legs can be fitted into the stopper groove while elastically pressing the elastic member.
摘要:
A soldering structure using Zn includes a bonding layer which contains Zn; and a lead-free solder which bonds and reacts to the bonding layer. The bonding layer can be a Zn alloy layer or a multilayer including a Zn layer. Accordingly, the characteristics of the soldering structure can be improved by involving the high reactive Zn to the interfacial reaction of the soldering.