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.
摘要:
According to an exemplary driving method of a plasma display panel of the present invention, waveforms having a reset function, an address function, and a sustain discharge function are applied to a scan electrode while sustain electrodes are biased at a ground voltage. A board for driving the sustain electrodes and a switch for supplying a ground voltage is eliminated and accordingly manufacturing cost of driving boards is reduced. Various circuits for generating the desirable waveforms and simplifications that do not compromise the effectiveness of the circuits are also presented.
摘要:
In a method for providing Location Based Services (LBS) in a mobile communication system, upon receipt of a location trigger at an LS for requesting location information of an MS from a location client, the LS transmits an authentication request message for requesting an ID of an Anchor Authenticator (AA) for the MS to an Authorization, Authentication and Accounting server (AAA), which transmits an authentication response message to the LS. The LS transmits an LCID request message for requesting an LCID of an LC for the MS to the AA, which AA transmits an initiate MS paging request message to an APC. The APC detects a serving LC of the MS and transmits an LCID to the AA, which transmits an LCID response message to the LS, which transmits an MS location report request message to the serving LC. The LC transmits an MS location report response message to the LS.
摘要:
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:
A flat display device may include a plurality of electrodes arranged in one direction, a first transistor coupled between the plurality of electrodes and a first power source for supplying a first voltage, and a gate driving circuit for supplying a driving voltage to a gate of the first transistor through a push-pull circuit including second and third transistors coupled between second and third power sources for respectively supplying second and third power sources, wherein a resistance formed between the second transistor and the second power source is greater than that formed between the third transistor and the third power source.
摘要:
A voltage generating circuit for a semiconductor memory device. The voltage generating circuit includes a multi-boosting unit for stepping up a power supply voltage, a transfer transistor connected to a final boosting node of the multi-boosting unit and an output node, and a charge-sharing element, electrically connected to the final boosting node and a gate node of the transfer transistor, enabled during at least a part of the period the power supply voltage is stepped-up by the multi-boosting unit and performing charge sharing between the final boosting node and the gate node of the transfer transistor.
摘要:
A electrophoretic display is provided, which includes a first electrode formed on a first substrate, a second electrode formed on a second substrate facing the first substrate, a plurality of partitions dividing the domain between the first and second electrodes into a plurality of domains, and a plurality of charged particles colored by one among red, green, and blue, and dispersed in each domain.
摘要:
A layout structure for sub word line drivers and method thereof. The example layout structure may include at least one N-channel transistor arrangement having a cross sectional width and a cross sectional length, the N-channel transistor arrangement oriented such that the cross sectional length extends along a first direction, the first direction oriented along a sub word line driver from a first sub array block to a second sub array block. The example method may arrange the at least one N-channel transistor between the first and second sub array blocks.
摘要:
Disclosed is a method for performing handoff by a Mobile Station (MS) in a Broadband Wireless Access (BWA) communication system including a serving Base Station (BS) and at least one neighbor BS adjacent to the serving BS, the serving BS currently providing a service to the MS. The method including receiving physical layer information for communication from said at least one neighbor BS by the serving BS; combining by the serving BS the received physical layer information of said at least one neighbor BS, inserting the physical layer information into an advertisement message, and transmitting the advertisement message to the MS; and receiving by the MS the advertisement message, and performing a handoff according to the physical layer information of said at least one neighbor BS included in the advertisement message when the handoff occurs.
摘要:
Disclosed is a method and system for transmitting/receiving a neighbor base-station information message in a broadband wireless access system. A base station sets and transmits a neighbor base-station information message, which includes a specific flag field for limiting neighbor base-station information and a reserved field and omits iterative neighbor base-station information depending on a value set in the specific flag field, thereby increasing a transmission efficiency. A mobile terminal receives the neighbor base-station information message from the base station, checks the received message, and then updates an operator ID according to the value set in the specific flag field.