Abstract: Methods and apparatus for driving discharge lamps are disclosed herein. In one embodiment, a method for driving a discharge lamp includes generating a switching signal to drive a discharge lamp, monitoring a working status of the discharge lamp, and determining whether the discharge lamp is operating abnormally based at least in part on the monitored working status. The method also includes decreasing a duty cycle of the switching signal when the discharge lamp is determined to operate abnormally.

Abstract: A method for accessing a hybrid network including a wide area network and a distributed network, a gateway apparatus, a wireless terminal and a gateway communication system are disclosed for reducing the power consumption of the wireless terminal which is an access gateway. The method comprises: sensing by a gateway apparatus a relay request slot on a downlink common control channel of the wide area network; transmitting by a wireless terminal a relay request signal requesting to relay a data packet to be transmitted, in the relay request slot on the downlink common control channel; and if the relay request signal from the wireless terminal is sensed in the relay request slot, establishing by the gateway apparatus a connection with the wireless terminal in a distributed network environment.

Abstract: SIMO power converters and associated methods of control are disclosed herein. In one embodiment, a method of converting a signal input signal into multiple output signals includes supplying power to a plurality of output terminals based on a signal input signal, detecting a voltage at individual output terminals, determining an arithmetic relationship between the detected voltages of the output terminals, and adjusting the power supplied to the plurality of output terminals based at least in part on the determined arithmetic relationship between the detected voltages of the output terminals.

Abstract: Embodiments of the present invention includes a handover processing method, a source eNB, a neighboring eNB and a network communication system. In one embodiment of the handover processing method, a source eNB selects a target eNB from neighboring eNBs that can accept a handover request from a mobile terminal, and notifies a selection result to the mobile terminal; if handover information corresponding to the mobile terminal is received by an neighboring eNB that can accept the handover request of the mobile terminal within a preset handover waiting time, the neighboring eNB determines that it is a target eNB and cooperates with the mobile terminal to perform a handover; otherwise, the neighboring eNB determines that it is a prepared eNB and reduces its resources reserved for the mobile terminal. The present invention can effectively improve the successful handover probability.

Abstract: The present invention provides a method and apparatus for driving multiple parallel discharge lamps, which increases the switching frequency once the open lamp condition is detected to provide an output voltage that is high enough to ignite the lamp again.

Abstract: Embodiments of the present invention include a method and apparatus for reducing control signaling overhead in a hybrid wireless network.

Abstract: Embodiments of the present invention include a method for performing cell reselection in a mobile communication system. The method comprises the steps of reading, by a user equipment (UE), the Access Class (AC) barring parameters of the serving cell which are broadcast from a base station, and performing an AC barring check; calculating the cell reselection values of the serving cell and the adjacent cells according to the cell reselection parameters broadcast by the base station when the AC barring check fails; and ranking the calculated cell reselection values, selecting by the UE the cell corresponding to the maximum value of the calculated cell reselection values as the serving cell of the UE.

Abstract: The present invention has disclosed a method for setting an active period starting point for a User Equipment (UE) in a Discontinuous Reception (DRX) mode, comprising steps of: a base station calculating and storing a position of the active period starting point for the UE based on predetermined parameters, so as to transmit data to the UE in a corresponding active period; the UE receiving Radio Resource Control (RRC) configuration information from the base station, and detecting whether the DRX mode is configured in it or not; the UE calculating its active period starting point based on predetermined DRX parameters in the received RRC configuration information; and the UE starting DRX based on the calculated active period starting point. The present invention has also disclosed an apparatus for setting an active period starting point for a UE in a DRX mode.

Abstract: Embodiments of the present invention include a wireless access method based on a NAVT (Network allocation vector table), which is applied to a distributed wireless mobile communication system comprising a plurality of nodes, the NAVT comprises a packet type field and a duration field and is stored in the respective nodes of the communication system, comprising: on a transmitting side, determining whether only a RTS (request to send) item is contained in the NAVT when a packet arrives; sensing channel to judge whether the channel is busy after determining that only the RTS item is contained in the NAVT; sending a RTS packet based on the RTS item to the receiving side after determining that the channel is busy; and on a receiving side, determining whether the NAVT is empty or not when the RTS packet is received; sending a CTS (clear to send) packet back to the transmitting side after determining that the NAVT is empty.

Abstract: An inverter comprising a low-side switching element in series with a first primary winding; a high-side switching element in series with a second primary winding, where the combination of the low-side switching element and first primary winding is connected in parallel with the combination of the high-side switching element and the second primary winding; and a clamping capacitor having one terminal connected to the first primary winding and having a second terminal connected to the second primary winding. Other embodiments are described and claimed.

Abstract: A method for crystallization of a weakly acidic and/or weakly basic compound having an uncharged form and at least one charged form comprises the steps of: a) providing a solution of said compound in a solvent having an initial pH-value and an initial total concentration of said compound, said initial pH-value being chosen such that the compound is present in said solution predominantly in said charged form, said initial total concentration being chosen larger than the intrinsic solubility of said uncharged form; b) gradually changing the pH-value of said solution in a direction that leads to a decrease of said compound's solubility until reaching a predetermined target pH-value at which said solution is in a substantially saturated state and the concentration of said uncharged form is substantially equal to said intrinsic solubility thereof; and c) maintaining said solution in a substantially saturated state while allowing formation of crystals of said compound.

Abstract: A method and an apparatus select an access point (AP) in a wireless LAN to associate or reassociate, based on considerations that take into account the quality-of-service (QoS) status of the stations (STAs) and the potential hidden terminal effect. The method utilizes advertised or requested information obtained from an AP which includes the QoS status in each basic service set (BSS) and estimates the potential hidden terminal (HT) effect based on local channel sensing by the STA. The method selects the AP in a manner that reduces the possibility of collision from equal and higher priority HTs, thus providing greater transmission throughput and improving performance.

Abstract: A method for accessing a hybrid network including a wide area network and a distributed network, a gateway apparatus, a wireless terminal and a gateway communication system are disclosed for reducing the power consumption of the wireless terminal which is an access gateway. The method comprises: sensing by a gateway apparatus a relay request slot on a downlink common control channel of the wide area network; transmitting by a wireless terminal a relay request signal requesting to relay a data packet to be transmitted, in the relay request slot on the downlink common control channel; and if the relay request signal from the wireless terminal is sensed in the relay request slot, establishing by the gateway apparatus a connection with the wireless terminal in a distributed network environment.

Abstract: A pair scheduling medium access control method used in a wireless network, comprises the steps of: checking, by a receiving node, whether a transmitting node has data packets to be subsequently sent, according to data packets received from the transmitting node; when the transmitting node has no data packets to be subsequently sent, checking whether the receiving node has data packets to be sent to the transmitting node or not; if the receiving node has data packets to be sent to the transmitting node, then adding a time period required for sending the data packets of the receiving node into an acknowledgement packet to be sent to the transmitting node; after the receiving node receives a Clear to Send packet sent from the transmitting node, sending the data packets in the receiving node to the transmitting node.

Abstract: A method for crystallization of a weakly acidic and/or weakly basic compound having an uncharged form and at least one charged form comprises the steps of: a) providing a solution of said compound in a solvent having an initial pH-value and an initial total concentration of said compound, said initial pH-value being chosen such that the compound is present in said solution predominantly in said charged form, said initial total concentration being chosen larger than the intrinsic solubility of said uncharged form; b) gradually changing the pH-value of said solution in a direction that leads to a decrease of said compound's solubility until reaching a predetermined target pH-value at which said solution is in a substantially saturated state and the concentration of said uncharged form is substantially equal to said intrinsic solubility thereof; and c) maintaining said solution in a substantially saturated state while allowing formation of crystals of said compound.

Abstract: An embodiment of the present invention includes a medium access control method in a wireless distributed network which comprises the steps of: transmitting a CTS packet after delaying for an SIFS time interval, when a node in the network receives a RTS packet addressed to the node; detecting a channel and timing; if the channel is detected in idle within a time interval of the clearing threshold after the completion of the CTS packet transmission, then transmitting a clearing packet after the time interval of the clearing threshold is elapsed; resetting their current network allocation vectors of all the nodes receiving the clearance packet to zero. The techniques described herein resolve a problem of unnecessary setting of the network allocation vectors due to the transmission failure of the CTS. The throughput and time delay of the wireless system is improved by initiating information for clearing network allocation vectors by a receiver.

Abstract: Embodiments of the present invention include a wireless access method based on a NAVT (Network allocation vector table), which is applied to a distributed wireless mobile communication system comprising a plurality of nodes, the NAVT comprises a packet type field and a duration field and is stored in the respective nodes of the communication system, comprising: on a transmitting side, determining whether only a RTS (request to send) item is contained in the NAVT when a packet arrives; sensing channel to judge whether the channel is busy after determining that only the RTS item is contained in the NAVT; sending a RTS packet based on the RTS item to the receiving side after determining that the channel is busy; and on a receiving side, determining whether the NAVT is empty or not when the RTS packet is received; sending a CTS (clear to send) packet back to the transmitting side after determining that the NAVT is empty.