Abstract:
플라즈마 디스플레이 패널이 개시된다. 개시된 플라즈마 디스플레이 패널은, 서로 이격되게 배치되어 그 사이에 방전공간을 형성하는 하부기판 및 상부기판; 하부기판과 상부기판 사이에 마련되어 방전공간을 구획하여 방전셀들을 형성하는 다수의 격벽; 방전셀들의 내부에 방전을 일으키는 다수의 제1 및 제2 방전전극; 방전셀들의 내벽에 형성되어 방전에 의하여 가시광을 방출하는 형광체층; 및 상부기판에 형성되어 외부의 빛이 방전셀들로 유입되는 것을 방지하는 외광 차폐 부재;를 구비하고, 상부기판에는 방전셀에서 발생된 가시광을 집속하여 외부로 출사시키는 다수의 광 집속부가 형성된다.
Abstract:
본 발명은 플라즈마 디스플레이 패널 구동 장치 및 방법에 관한 것으로서, 특히 전력 회수 회로에서의 기생 효과에 의하여 발생되는 프리-휠링 전류(Free-wheeling current)를 빠르게 제거하여 전력 회수 효율을 개선시키기 위한 고효율 플라즈마 디스플레이 패널 구동 장치 및 방법에 관한 것이다. 본 발명에 의하면 전력 회수 시이퀀스에 따른 모드 천이 시 공진 경로에 포함된 회로 소자인 인덕터에 기생 효과에 의하여 생성되는 프리-휠링(Free-wheeling) 전류를 인덕터 양단의 전압차가 소정 값 이상이 되는 폐회로가 생성되도록 회로를 설계함으로써, 기생 효과에 의하여 발생되는 프리-휠링 전류를 원천적으로 빠르게 제거할 수 있어서, 첫째로 서스테인 스위칭 소자들의 전류 스트레스를 감소시킬 수 있는 효과가 발생되며, 둘째로 프리-휠링 전류로 인한 소비전력의 증가를 방지할 수 있는 효과가 발생되며, 세 번째로, 게이트 신호 타이밍 시이퀀스의 조정을 용이하게 할 수 있는 효과가 발생된다.
Abstract:
A device and a method for receiving a channel in a mobile communication system are provided to prevent a terminal from receiving a wrong control message owing to a receiving error of a packet control channel while preventing the terminal from being wrongly operated due to the wrong message, thereby reducing a Walsh mask update error. An F-PDCCH(Forward Packet Data Control Channel) decoder(910) decodes a control channel signal for decoding a PDCH(Packet Data Channel). An active Walsh mask storage(920) stores a requested Walsh mask if the decoded control channel signal is a Walsh mask change request signal. An F-PDCH decoder(940) decodes the PDCH by using the stored Walsh mask. A Walsh mask validity determiner(930) receives the decoded results of the F-PDCH decoder(940), and determines whether the Walsh mask is valid.
Abstract:
Provided are an energy recovery apparatus and method for recovering energy in a plasma display panel (PDP) at improved efficiency using a single energy storage device and a small number of devices regardless of the number of pixels that become conductive as a result of the screen state. The energy recovery apparatus includes a first closed circuit, which supplies predetermined source voltage to pixels for conduction according to a predetermined switching sequence; a second closed circuit, which uses a single energy storage device to recover energy discharged from the pixels that have been charged by the first closed circuit; and a third closed circuit, which transfers the energy stored in the energy storage device to pixels for conduction according to the predetermined switching sequence.
Abstract:
PURPOSE: A single tone control apparatus and method of a mobile communication system is provided to minimize a damage of a data by predicting the increase of a noise due to a single tone and heightening an IIP3 of a receiver, and reduce a power consumption by flowing the optimum current. CONSTITUTION: When a reception signal is inputted(701), an RSSI detector detects an RSSI and outputs it(703). And a signal-to-noise ratio detector receives the reception signal, detects an Eb/Nt of the reception signal and outputs it. The RSSI is inputted to a cross modulation signal strength detector, a TX AGC control signal generator and an RX AGC control signal generator, and the Eb/Nt is inputted to the cross modulation signal strength detector. When the RSSI and the Eb/Nt are detected, the cross modulation signal strength detector detects an IMDG signal and IMD signal strength and outputs them, and the TX AGC control signal generator and RX AGC control signal generator generate a TX gain control signal and a TX gain control signal and output them, respectively(705). When the TX gain control signal is generated, a Tx output signal is generated(709). When the Tx output signal is generated, a compensator detects the strength of the TX output signal, reads a compensation value for the cross modulation that can be reduced or increased by the TX output signal strength, and outputs it(711). Then, a coupler adds the compensation value and the signal outputted from the cross modulation signal strength detector and outputs it. The cross modulation control signal generator receives the signal outputted from the coupler, generates an IMD control signal for the signal, and outputs it to a transmission power amplifier or a drive amplifier(713).
Abstract:
PURPOSE: A mobile communication system of OFDM(Orthogonal Frequency Division Multiple)/CDMA(Code Division Multiple Access) with a device for injecting and detecting the pilot tone is provided to restore data correctly by injecting and detecting a pilot carrier in the field of frequency and a pilot symbol in the field of time. CONSTITUTION: A mobile communication system of OFDM(Orthogonal Frequency Division Multiple)/CDMA(Code Division Multiple Access) with a device for injecting and detecting the pilot tone includes an interleaver(100), a series/parallel converter(101), a pilot symbol inserter(102), a pilot carrier inserter(103), a modulator(104), a parallel/series converter(105), a protect section inserter(106), a D/A converter(107) and an up converter(108). The interleaver(100) inputs the spread data and outputs the symbol data by interleaving them. The series/parallel converter(101) outputs the symbol data output from the interleaver(100)by lining up them. The pilot symbol inserter(102) inserts data output lined up into the field of time at regular intervals and outputs them. The pilot carrier inserter(103) inputs OFDM symbol data and outputs them at regular intervals in the frequency field by inserting pilot carrier. OFDM symbol data are input to the modulator(104) and the modulator(104) modulates and outputs OFDM symbol data. The parallel/series converter(105) outputs OFDM converted data by series. The protect section inserter(106) inserts the protect section into the output data and outputs them. The data, in which the protect section is inserted, are converted into analog data through the D/A converter(107) and are transmitted through the up converter(108) and the antenna.
Abstract:
PURPOSE: A device for generating a phase variable in a Gaussian minimum shift keying(GMSK) transmitter is provided to embody the GMSK transmitter which does not use a Gaussian low pass filter. CONSTITUTION: A device for generating a phase variable in a GMSK transmitter includes the following units. A plurality of operation blocks(100) consist of three multipliers for respectively multiplying three first input variables by three second input variables, and adders for adding values from the multipliers. A switching unit(130) connects an initial value in an initial stage, and connects a value obtained by adding an output value from a last delay to a third input variable, after the initial stage. A delay block(110) consists of an adder for adding an output value from the operation block(100) to a phase variable from the delay at the previous terminal, and a plurality of delays for delaying a value from the adder for a predetermined time. An output block(120) sequentially outputs a first phase variable from the switching unit(130) and phase variables from the plurality of delays of the delay block at predetermined intervals. As a result, a calculation amount is reduced and a circuit is simplified by calculating the phase variable with the plurality of multipliers, adders and delays.
Abstract:
본발명은전자장치및 전자장치에서데이터를처리하는방법에관한것으로, 적어도하나의주변단말의정보를검색하고, 복수의전자장치로전송되는데이터에대한손실을확인하는경우, 상기검색된적어도하나의주변단말의정보를기반으로하여, 상기주변단말들중 적어도하나의단말로상기손실을확인한데이터의전송을요청하고, 상기요청에대응하여, 상기손실을확인한데이터를수신할수 있으며, 그외 다양한실시예가가능할수 있다.