Abstract:
Disclosed are a substrate and a terminal for a power module and a power module comprising the same. A substrate for a power module includes a first part which is equipped with a terminal of a first polarity and a second part which is equipped with a terminal of a second polarity. A terminal for a power module includes a first terminal to which a first polarity voltage is applied and a second terminal to which a voltage opposite to the first polarity is applied. The first and second terminals are spaced apart from each other while at least a portion is overlapped.
Abstract:
Disclosed are a substrate for a power module having a uniform parallel switching characteristic and a power module comprising the same. A substrate for a power module according to one embodiment of the present invention includes regions for mounting an input terminal, a region for mounting an output terminal, regions for mounting devices, and a region for mounting control fins. The regions for mounting the devices are bilaterally symmetric to the region for mounting the control fins. The regions for mounting the input terminal includes three separated regions and have bilateral symmetry. The power module includes a substrate like this.
Abstract:
PURPOSE: Light shielding devices and a method for manufacturing the same are provided to prevent a roll-up blade from being adhered to an insulation layer even though driving for a long term, thereby extending the life time of the light shielding devices. CONSTITUTION: Light shielding devices(100,200,310) comprises a base plate(110), a material layer(120), a roll-up blade(130), and a driving unit(140). The base plate comprises a lower electrode(114) and the material layer is formed on the base plate. The roll-up blade is arranged in a light transmission region(110a) of the base plate to be correspondent and comprises an upper electrode. The driving unit is electrically connected to the upper and lower electrodes. An adhesion preventing structure for preventing the adhesion of the roll-up blade and material layer is equipped. [Reference numerals] (140) Driving unit
Abstract:
본 발명은 패킷 기반 무선 통신 시스템에서 무선 자원을 통해 전송되는 스케줄링 정보의 양을 최소화하고 무선 자원을 통해 추가적인 제어 정보를 전송하는 경우를 줄일 수 있는 패킷 데이터 전송 및 수신 방법에 관한 것으로, 패킷 기반 무선 통신 시스템에서의 패킷 데이터 전송 방법에 있어서, (a) 패킷 데이터 전송을 위한 무선 자원 블록의 부호화 방식을 지시하는 무선 자원 블록 구분자를 설정하는 단계; (b) 상기 무선 자원 블록 구분자가 포함되고, 스케줄링 정보를 전송하기 위한 제어 신호 블록을 단말기의 그룹 식별자로 마스킹한 CRC를 적용하여 부호화하는 단계; 및 (c) 상기 패킷 데이터 전송을 위한 무선 자원 블록을 상기 무선 자원 블록 구분자가 지시하는 방식에 따라 부호화하는 단계를 포함한다. 패킷, 통신, 시스템, 무선, LTE, 자원, 제어, 블록, 데이터, 패킷, 전송
Abstract:
A method for receiving packets in a mobile communication system is provided to operate a mobile station in one of operation levels according to activity of packet data of a corresponding service, thereby achieving an efficient low-consumption operation. A mobile station receives information about inconsecutive reception operation parameters including a reception cycle from a base station(S110). The mobile station is operated in one of a first operation level at which data are received every a first reception cycle, a second operation level at which data are received every a second reception cycle shorter than the first reception cycle, and a consecutive reception level at which the packet data are consecutively received, thereby receiving packets(S170,S190). The mobile station selects one of the first operation level, the second operation level, and the consecutive operation level, according to activity of the packet data.
Abstract:
A method for transmitting a response message of random access in a cellular system and a random access method using the same are provided to assign and manage a mobile station identifier by using minimum random access delay and minimum radio resources. A method for transmitting a response message of random access comprises the followings steps of: receiving a preamble from a mobile station(S301); confirming whether the mobile station includes a mobile station identifier, assigned by a base station, by using the receiving preamble(S303); if not so, allocating first scheduling information to a control information block, allocating a first response message including a mobile station identifier assigned by the base station to a downlink shared channel, and transmitting the control information block and the downlink shared channel to the mobile station(S304); and if so, allocating second scheduling information to the control information block, allocating a second response message including no mobile station identifier to the downlink shared channel, and transmitting the control information block and the downlink shared channel to the mobile station(S305).
Abstract:
개시된 압전형 MEMS 스위치는 기판; 기판의 상면에 소정의 간격부를 두고 서로 대칭되게 형성된 제 1,2 고정신호라인; 간격부에 제 1,2고정신호라인과 동일 선상으로 설치되되, 기판에 일단이 지지되어 상하구동하는 압전액튜에이터; 및 압전액튜에이터의 상면에 적어도 일측이 연결되고, 제 1 고정신호라인 또는 제 2 고정신호라인 중 어느 하나에 일단이 연결되고, 그 타단이 제 1 고정신호라인 또는 제 2 고정신호라인과 접촉 또는 이탈되는 가동신호라인;을 포함한다.
Abstract:
A method for transmitting/receiving downlink scheduling information in an OFDMA(Orthogonal Frequency Division Multiple Access) system is provided to reduce the quantity of scheduling information by using a resource block having a minimum resource block index, a maximum resource block index, or a channel with a high quality. A method for transmitting/receiving downlink scheduling information in an OFDMA system includes the steps for allocating at least one of resource blocks comprising downlink resources of the OFDMA system, to each terminal(S200); selecting the resource block for each terminal on the basis of the size of indexes of each allocated resource block(S210); generating scheduling information including terminal resource allocation information and terminal discrimination information, for each terminal(S220); and transmitting the scheduling information of the terminal to each terminal by using the selected resource block(S234).
Abstract:
An MEMS(Micro Electro Mechanical System) switch of a downward type and a method for manufacturing the same are provided to remove an electro magnetic coupling phenomenon generated on a metal of an antenna line and a metal of a substrate through a switch using a piezoelectric force. An MEMS switch(100) of a downward type includes a substrate(110), a first actuator(130), a second actuator(132), a first fixing line(140), a second fixing line(142), a contact metal(150), and a support layer(160). The substrate(110) has first and second cavity units(120,122). The first and second fixing lines(140,142) are formed on the top surface of the substrate(110) not to be cross with the first and second cavity units(120,122). The contact metal(150) is formed by being separated from the surfaces of the first and second fixing lines(140,142). The first and second actuators(130,132) are formed on the first and second cavity units(120,122), and make the contact metal(150) downward to be contacted to at least one of the first and second fixing lines(140,142) when the power is supplied.
Abstract:
개시된 마이크로스위치는 기판과, 기판상에 형성되며 스위칭접점부를 갖는 복수의 신호라인과, 기판상에 형성되되 신호라인들의 사이에 형성된 복수의 고정전극과, 기판상에 소정의 높이로 돌출되게 마련된 복수의 앵커와, 앵커에 지지되어 상하 유동가능하게 설치되되 동일 평면상에 설치되는 적어도 두개의 작동빔과, 작동빔들을 연결하는 연결유닛과, 연결유닛을 지지하도록 기판에 마련된 지지유닛 및 작동빔의 저면에 설치되어 스위칭접점부와 접촉하는 접촉부재를 포함한다. 이러한 구성을 통해 스틱션 페일이 발생되는 것을 효과적으로 해소함과 아울러서 저전압 구동이 가능하다. 마이크로 스위치, MEMS, 스틱션, RF, 전극, 신호라인