Abstract:
An oscillatory wave generating unit and an oscillatory wave sensing unit are installed at both ends of a refrigerant pipe of an evaporator of the cooling system, an amount of frost formed on the refrigerant pipe is determined by comparing a wave form of an oscillatory wave generated from one end of the refrigerant through the oscillatory wave generating unit and a wave form of the oscillatory wave sensed by the other one end of the refrigerant through the oscillatory wave sensing unit, and whether or not a defrosting operation is performed is determined by a result of the determination. The cooling system increases the accuracy in sensing the amount of the frost formed on the evaporator of a refrigerator, a Kimchi refrigerator, or an air conditioner, and respectively starts and ends the defrosting operation at proper points of time, thus enhancing a heat-exchanging performance and increasing energy efficiency.
Abstract:
A semiconductor device, a method related to the semiconductor device, and a printed circuit board are disclosed. The semiconductor device includes a chip, a package including a plurality of power voltage terminals and a plurality of ground voltage terminals, wherein the chip is disposed in the package. The semiconductor device further includes an impedance circuit connected between a DC component power voltage terminal and a ground voltage, wherein the DC component power voltage terminal is one of the plurality of power voltage terminals, and an AC component interrupter connected between the DC component power voltage terminal and a power voltage. Both the AC component and a DC component of the power voltage are applied to each of the power voltage terminals except the DC component second power voltage terminal, and the ground voltage is applied to each of the ground voltage terminals.
Abstract:
Disclosed is a semiconductor memory device including a memory cell array having a plurality of variable resistance memory cells divided into first and second areas. An I/O circuit is configured to access the memory cell array under the control of control logic so as to access the first or second area in response to an external command. The I/O circuit accesses the first area using a memory cell unit and the second area using a page unit.
Abstract translation:公开了一种半导体存储器件,包括具有分成第一和第二区域的多个可变电阻存储器单元的存储单元阵列。 I / O电路被配置为在控制逻辑的控制下访问存储单元阵列,以响应于外部命令访问第一或第二区域。 I / O电路使用存储单元单元访问第一区域,并且使用页面单元访问第二区域。
Abstract:
The present invention provides a plasma display apparatus comprising a second driver supplying a first bias signal with a voltage maintained at a first bias voltage in a reset period and an address period, a first sustain rising signal that gradually rises from the first bias voltage to a second bias voltage, and a second bias signal with a voltage maintained at the second bias voltage, to the second electrode.
Abstract:
A test pattern includes a normal pattern, an abnormal pattern having predetermined defects, and a conductive line electrically connected to the normal pattern and electrically isolated from the abnormal pattern. Thus, a non-contact test process and a contact test process may be compatible with the single test pattern.
Abstract:
A lamp including a hermetic tube and a filament configured to radiate thermal energy within the tube. Further, the filament extends along a length direction of the tube and is spaced apart from an inner wall of the tube.
Abstract:
There is provided a bracket for securing a side airbag for an automotive vehicle. The bracket includes a support plate, an installation plate positioned at upper part of the support plate and including an installation aperture, and fixing plates formed by being forwardly bent from the right and left edges, with respect to the installation plate, of the support plate.
Abstract:
An electromagnet heating cable includes a center core, an inner layer body formed around the center core, an intermediate layer body formed around the inner layer body, an outer layer body formed around the intermediate layer body, an inner layer coil having a magnetic core disposed between the center core and inner layer body, an intermediate layer coil disposed between the inner layer body and the intermediate layer body, and an outer layer coil disposed between the intermediate layer body and outer layer body, wherein when a temperature of the heating cable exceeds a threshold, the intermediate layer body melts to electrically connect the intermediate layer coil to the outer layer coil.
Abstract:
A compressor of the vehicle's cooling system is configured such that an external refrigerant is introduced into a shaft in a radial direction through a body, flows in the shaft in an axial direction, and then is discharged to a refrigerant compression space in the body, thereby shortening the flow path of the refrigerant and minimizing flow path resistance. Moreover, since no suction valves and suction chambers are required, the structure is simplified and the cost is reduced.
Abstract:
An environmentally-friendly polylactic acid resin composition includes (A) a mixed resin including (a1) a polylactic acid (PLA) resin and (a2) a polycarbonate resin, and (B) a compatibilizer capable of forming a stereo-complex with the polylactic acid resin. According to the present invention, the polylactic acid resin composition is environmentally-friendly and has excellent appearance and improved welding impact strength, as well as improved mechanical strength and heat resistance. Accordingly, it can be used for manufacturing various molded products requiring heat resistance and mechanical strength, for example electronic parts, office machines, miscellaneous goods, and the like.