公开(公告)号：US07420496B2

公开(公告)日：2008-09-02

申请号：US11565531

申请日：2006-11-30

申请人： Byung Hoon Kim ,  Taek Soo Kim ,  Youn Joong Lee ,  Chan Woo Park

发明人： Byung Hoon Kim ,  Taek Soo Kim ,  Youn Joong Lee ,  Chan Woo Park

IPC分类号： H03M1/66

CPC分类号： H03M1/682 ,  H03M1/765

摘要： A high resolution digital/analog converting apparatus for a spatial optical modulator includes a resistor string including a plurality of resistors connected to each other in series between operating voltage terminals to divide operating voltages into a plurality of voltages using the plural resistors, a decoder to provide switching signals corresponding to digital signals, and a switch unit to select two voltages from the plural voltages divided by the resistor string according to the switching signal of the decoder. The two voltages are adjacent to each other. Moreover, the digital/analog converting apparatus may include a digital/analog converter to perform a digital/analog conversion of the two voltages.

摘要翻译： 用于空间光学调制器的高分辨率数字/模拟转换装置包括：电阻串，包括串联连接在工作电压端子之间的多个电阻器，用于使用多个电阻将工作电压分成多个电压;解码器， 与数字信号对应的切换信号，以及开关单元，根据解码器的切换信号从由电阻串划分的多个电压中选择两个电压。 两个电压彼此相邻。 此外，数字/模拟转换装置可以包括数字/模拟转换器，以执行两个电压的数字/模拟转换。

公开(公告)号：US20070194965A1

公开(公告)日：2007-08-23

申请号：US11565531

申请日：2006-11-30

申请人： Byung Hoon KIM ,  Taek Soo Kim ,  Youn Joong Lee ,  Chan Woo Park

发明人： Byung Hoon KIM ,  Taek Soo Kim ,  Youn Joong Lee ,  Chan Woo Park

IPC分类号： H03M1/66

CPC分类号： H03M1/682 ,  H03M1/765

摘要： A high resolution digital/analog converting apparatus applied to a spatial optical modulator is disclosed. The digital/analog converting apparatus includes a resistor string including a plurality of resistors connected to each other in series between operating voltage terminals to divide operating voltages into a plurality of voltages using the plural resistors, a decoder to provide switching signals corresponding to digital signals, and a switch unit to select two voltages from the plural voltages divided by the resistor string according to the switching signal of the decoder. The two voltages are adjacent to each other. Moreover, the digital/analog converting apparatus may include a digital/analog converter to perform a digital/analog conversion of the two voltages.

摘要翻译： 公开了一种应用于空间光学调制器的高分辨率数字/模拟转换装置。 数字/模拟转换装置包括：电阻串，包括串联连接在工作电压端子之间的多个电阻器，用于使用多个电阻将工作电压分成多个电压;解码器，用于提供对应于数字信号的开关信号; 以及开关单元，根据解码器的切换信号从由电阻串划分的多个电压中选择两个电压。 两个电压彼此相邻。 此外，数字/模拟转换装置可以包括数字/模拟转换器，以执行两个电压的数字/模拟转换。

公开(公告)号：US20140312806A1

公开(公告)日：2014-10-23

申请号：US14000863

申请日：2011-10-10

申请人： Young Jong Kim ,  Dong Young Huh ,  Taek Soo Kim ,  Hyun Sik Kim

发明人： Young Jong Kim ,  Dong Young Huh ,  Taek Soo Kim ,  Hyun Sik Kim

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0851 ,  Y02B20/347 ,  Y02B20/348

摘要： An LED lighting system is provided. The LED lighting system includes a main transformer, a voltage detector, a current controller, a second reference voltage supplier, and a power factor compensation circuit. The main transformer transforms an input signal to supply the transformed input signal to an LED group. The voltage detector supplies a control voltage proportional to a level of an input voltage corresponding to the input signal. The current controller includes a first voltage storage, a negative voltage applier, a second voltage storage, switch, and a current control signal generator. The first voltage storage stores the control voltage supplied from the voltage detector or discharges a stored voltage. The negative voltage applier is connected to the first voltage storage, and connected to a ground to apply the control voltage to the ground when the control voltage is a negative voltage. The second voltage storage is connected to the first voltage storage, and stores the control voltage applied through the first voltage storage or discharges a stored voltage. The switch is connected to the second voltage storage, and activated by a driving signal to apply a ground voltage to the second voltage storage. The current control signal generator generates a current control signal according to a voltage signal and gain of the second voltage storage. The first voltage storage or the second voltage storage supplies the current control signal through the voltage detector. The second reference voltage supplier supplies the second reference voltage when the control signal supplied from the voltage detector is equal to or greater than the second reference voltage. The power factor compensation circuit controls a duty ratio of the driving signal according to a level of the current control signal, and controls a peak value of a primary current in the main transformer according to a level of the second reference voltage.

摘要翻译： 提供LED照明系统。 LED照明系统包括主变压器，电压检测器，电流控制器，第二参考电压供应器和功率因数补偿电路。 主变压器转换输入信号以将变换的输入信号提供给LED组。 电压检测器提供与对应于输入信号的输入电压的电平成比例的控制电压。 电流控制器包括第一电压存储器，负电压施加器，第二电压存储器，开关和电流控制信号发生器。 第一电压存储器存储从电压检测器提供的控制电压或放电所存储的电压。 负电压施加器连接到第一电压存储器，并且当控制电压为负电压时，连接到地面以将控制电压施加到地。 第二电压存储器连接到第一电压存储器，并且存储通过第一电压存储器施加的控制电压或放电存储的电压。 开关连接到第二电压存储器，并由驱动信号激活，以将接地电压施加到第二电压存储器。 电流控制信号发生器根据电压信号和第二电压存储器的增益产生电流控制信号。 第一电压存储器或第二电压存储器通过电压检测器提供电流控制信号。 当从电压检测器提供的控制信号等于或大于第二参考电压时，第二参考电压供应器提供第二参考电压。 功率因数补偿电路根据电流控制信号的电平来控制驱动信号的占空比，并且根据第二参考电压的电平来控制主变压器中的初级电流的峰值。

公开(公告)号：US08228874B1

公开(公告)日：2012-07-24

申请号：US13455079

申请日：2012-04-24

申请人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

发明人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

IPC分类号： H04B1/26

CPC分类号： H04W84/20 ,  H04W36/12 ,  H04W72/0406 ,  H04W72/087 ,  H04W76/20 ,  H04W76/22 ,  H04W84/18

摘要： A wireless network includes a current coordinator, at least one device which is currently associated with the wireless network, and a device selected as a new coordinator among the at least one device by the current coordinator. The current coordinator transmits a handover request message to the new coordinator; receives a handover response message in response to the handover request message from the new coordinator, the handover response message including a reason code field that is set to “success”; and broadcasts one or more beacons, each beacon including identification information which identifies the new coordinator and number information which indicates a number of remaining beacons that the current coordinator will broadcast before a handover occurs. The number information included in a last beacon among the one or more beacons is set to “0,” and the new coordinator broadcasts a beacon after receiving the last beacon from the current coordinator.

摘要翻译： 无线网络包括当前协调器，当前与无线网络相关联的至少一个设备，以及当前协调器在该至少一个设备之间被选择为新协调器的设备。 当前协调器向新协调器发送切换请求消息; 响应于来自新协调器的切换请求消息接收切换响应消息，切换响应消息包括被设置为“成功”的原因码字段; 并且广播一个或多个信标，每个信标包括标识新协调器的识别信息和指示当前协调器将在切换发生之前广播的剩余信标数量的号码信息。 包含在一个或多个信标中的最后信标中的号码信息被设置为“0”，并且新协调器在从当前协调器接收到最后一个信标之后广播信标。

公开(公告)号：US20120057556A1

公开(公告)日：2012-03-08

申请号：US13296171

申请日：2011-11-14

申请人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

发明人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04W72/0433

摘要： A device for allocating a channel resource in a wireless network includes a Media Access Control (MAC)/MAC Layer Management Entity (MLME) sublayer and the MAC/MLME sublayer receives a primitive requesting to transmit a message for requesting the channel resource from an upper layer; transmits the message for requesting the channel resource to a coordinator, wherein the message for requesting the channel resource includes information about a duration of the channel resource; and receives channel resource allocation information for allocating the channel resource from a MAC/MLME sublayer of the coordinator, the channel resource allocation information including information about a duration of the allocated channel resource, wherein the device transmits a first message to a second device during the channel resource allocated based upon the channel resource allocation information, and receives a second message from the second device in response to the first message during the allocated channel resource.

摘要翻译： 用于在无线网络中分配信道资源的设备包括媒体接入控制（MAC）/ MAC层管理实体（MLME）子层，并且MAC / MLME子层接收请求从上层请求信道资源的消息发送的原语 层; 向协调器发送用于请求信道资源的消息，其中用于请求信道资源的消息包括关于信道资源的持续时间的信息; 并且从所述协调器的MAC / MLME子层接收用于分配信道资源的信道资源分配信息，所述信道资源分配信息包括关于所分配的信道资源的持续时间的信息，其中，所述设备在所述第二设备期间向第二设备发送第一消息 基于信道资源分配信息分配的信道资源，并且在分配的信道资源期间响应于第一消息从第二设备接收第二消息。

公开(公告)号：US07796555B2

公开(公告)日：2010-09-14

申请号：US12485001

申请日：2009-06-15

申请人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

发明人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

IPC分类号： H04W4/00

CPC分类号： H04W84/20 ,  H04W36/12 ,  H04W72/0406 ,  H04W72/087 ,  H04W76/20 ,  H04W76/22 ,  H04W84/18

摘要： The present invention relates to a handover method that a current coordinator transfers a coordinating function of controlling a network to a different device configuring the network. The present invention relates to a method of selecting an optimal device as a coordinator in selecting the different device using priority information decided by a prescribed evaluation reference. And, the present invention relates to a method of simplifying a procedure in a manner of transmitting relevant information together with a handover request message. In a wireless network including a coordinator, a secondary coordinator is decided in advance. If the coordinator is suddenly unable to perform a function, the present invention relates to a method of enabling the function of the coordinator to be performed by the decided secondary coordinator. Thus, a process for transferring the coordinating function without the handover process is called a recovery process. The present invention relates to the recovery method and a method of deciding a secondary coordinator to perform a recovery. In the method of deciding the secondary coordinator, a method of deciding a more proper coordinator using information on coordinator priority is provided.

公开(公告)号：US20100220669A1

公开(公告)日：2010-09-02

申请号：US12377378

申请日：2007-12-03

申请人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

发明人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

IPC分类号： H04W72/00

CPC分类号： H04W72/042 ,  H04W72/0433

摘要： A method of allocating channel resources in a wireless network is disclosed. The method of allocating instant channel resources in a wireless network includes receiving channel resource scheduling information of a specific superframe from a coordinator of the wireless network, requesting the coordinator to allocate instant channel resources for an unreserved duration of the specific superframe, and receiving an announcement message from the coordinator, the announcement message announcing allocation of the instant channel resources within the unreserved duration of the specific superframe.

摘要翻译： 公开了一种在无线网络中分配信道资源的方法。 在无线网络中分配即时信道资源的方法包括从无线网络的协调器接收特定超帧的信道资源调度信息，请求协调器为特定超帧的无保留持续时间分配即时信道资源，以及接收公告 来自协调器的消息，公告消息宣布在特定超帧的无保留持续时间内分配即时信道资源。

公开(公告)号：US07659522B2

公开(公告)日：2010-02-09

申请号：US11806310

申请日：2007-05-31

申请人： Jae Woo Kim ,  Taek Soo Kim ,  Se Won Bae ,  Sang Wook Kim

发明人： Jae Woo Kim ,  Taek Soo Kim ,  Se Won Bae ,  Sang Wook Kim

IPC分类号： G01N21/01 ,  G01N21/51 ,  G01N23/10 ,  G01N23/12

CPC分类号： H05H7/00

摘要： A method of purifying the used O-18 enriched cyclotron target water contaminated by the various organic compounds, the method including: supplying gaseous oxygen into the target water to be purified; irradiating UV rays having wavelengths of 254 nm and 185 nm on the target water; and releasing the gases generated during the purification oxidation process.

摘要翻译： 一种净化由各种有机化合物污染的所使用的O-18富集回旋加速器目标水的方法，包括：将氧气供给到待净化的目标水中; 在目标水上照射波长为254nm和185nm的紫外线; 并释放在净化氧化过程中产生的气体。

公开(公告)号：US20100008279A1

公开(公告)日：2010-01-14

申请号：US12562110

申请日：2009-09-17

申请人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

发明人： Beom Jin Jeon ,  Hyeon Cheol Cho ,  Taek Soo Kim

IPC分类号： G08C17/00

CPC分类号： H04W52/0229 ,  H04W48/08 ,  H04W52/287 ,  Y02D70/144 ,  Y02D70/168

摘要： In wireless network communication, the present invention provides a method of checking whether information on a request for a mode change is received for a prescribed channel time in a manner that a device configuring a network enters a power save mode in the course of not performing data transmission/reception and that a modem enters an awake state from a sleep state for the prescribed channel time. And, the prescribed channel time is determined to correspond to a time for transmitting a beacon. According to one preferred embodiment of the present invention, a modem of a device in a power save mode enters an awake state for a channel time period for broadcasting a beacon and then checks whether information on a power management mode change is received. If the information does not exist, a sleep state is reentered. If the power management mode change information is received, a power is managed by performing data transmission/reception in a manner of switching to a normal mode.

摘要翻译： 在无线网络通信中，本发明提供了一种在不执行数据的过程中以配置网络的设备进入省电模式的方式来检查是否针对规定的信道时间接收关于模式改变的请求的信息的方法 发送/接收，并且调制解调器从睡眠状态进入唤醒状态达规定的频道时间。 并且，规定的信道时间被确定为对应于发送信标的时间。 根据本发明的一个优选实施例，节电模式的设备的调制解调器进入用于广播信标的信道时间段的唤醒状态，然后检查是否接收到关于电源管理模式改变的信息。 如果信息不存在，则重新进入睡眠状态。 如果接收到功率管理模式改变信息，则通过以切换到正常模式的方式执行数据发送/接收来管理功率。

公开(公告)号：US20090310574A1

公开(公告)日：2009-12-17

申请号：US12374572

申请日：2008-01-29

申请人： Beom Jin Jeon ,  Taek Soo Kim

发明人： Beom Jin Jeon ,  Taek Soo Kim

IPC分类号： H04J3/00

CPC分类号： H04W74/0816 ,  H04B7/2656 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/1205 ,  H04W74/0891

摘要： A present invention is related to a method for transmitting a data packet in a wireless network. An exemplary method comprises requesting to allocate a bi-directional channel time block including a first channel time block for transmitting a specific data packet and a second channel time block for receiving a response to the specific data packet; transmitting the specific data packet through the first channel time block; and receiving the response to the specific data packet through the second channel time block, wherein the bi-directional channel time block is predetermined to be allocated in an unreserved region in a superframe.

摘要翻译： 本发明涉及一种在无线网络中发送数据分组的方法。 一种示例性方法包括请求分配包括用于发送特定数据分组的第一信道时间块和用于接收对特定数据分组的响应的第二信道时间块的双向信道时间块; 通过第一通道时间块传送特定数据包; 以及经由所述第二信道时间块接收对所述特定数据分组的响应，其中所述双向信道时间块被预先分配在超帧中的未保留区域中。