摘要:
Disclosed is a method and system by which a base station without a Global Positioning System (GPS) receiver acquires time synchronization in a Broadband Wireless Access (BWA) communication system. The method includes scanning neighbor base stations around a first base station and requesting time synchronization information from the scanned neighbor base stations by the first base station; receiving responses from predetermined neighbor base stations having already acquired time synchronization from among the neighbor base stations, the responses including time synchronization information of the predetermined neighbor base stations; and selecting a second base station from among the predetermined neighbor base stations and acquiring time synchronization based on the time synchronization information of the second base station.
摘要:
In an energy recovery circuit of a PDP, after storing energy in the inductor, the panel capacitor is charged by using a resonance between the inductor and the panel capacitor and the stored energy. At that time, a voltage greater than a voltage Vs/2 is stored in an energy recovery capacitor. Then, the panel capacitor can be charged to Vs even when a parasitic component exists in the energy recovery circuit. In addition, the energy remaining in the inductor can be used in a discharge. Also, the charging time of the panel capacitor is shorter than the discharging time of the panel capacitor to allow stable discharge.
摘要翻译:在PDP的能量恢复电路中,在将能量存储在电感器中之后,通过使用电感器和面板电容器之间的谐振以及存储的能量来对面板电容器进行充电。 此时,大于电压V S / 2的电压被存储在能量回收电容器中。 然后,即使在能量回收电路中存在寄生成分的情况下,面板电容器也可以被充电到V SUB。 此外,电感器中剩余的能量可用于放电。 此外,面板电容器的充电时间比面板电容器的放电时间短,以允许稳定放电。
摘要:
An apparatus for driving a plasma display panel including scan electrodes, sustain electrodes, and panel capacitors formed between the scan electrodes and the sustain electrodes is disclosed In one embodiment, the apparatus includes a scan integrated circuit for supplying a scan voltage to the scan electrodes, a sustain discharge voltage generator for applying the first voltage and the second voltage to the scan electrodes, and a rising reset waveform generator for applying a rising reset waveform rising from a third voltage to a fourth voltage to the scan electrode. In the plasma display panel according to the present invention, a transistor for applying a rising reset waveform is coupled to a transistor to eliminate a conventional main switch.