公开(公告)号：US07321643B2

公开(公告)日：2008-01-22

申请号：US10662195

申请日：2003-09-12

申请人： Dae-Ig Chang ,  Dong-Weon Yoon ,  Nae-Soo Kim

发明人： Dae-Ig Chang ,  Dong-Weon Yoon ,  Nae-Soo Kim

IPC分类号： H04L27/06

CPC分类号： H04L25/067 ,  H04L27/38

摘要： Disclosed is a soft decision decoder, and a log likelihood ratio calculator for soft decision decoding and a method thereof, for realizing a generalized log likelihood ratio algorithm in consideration of channel estimation errors for performing soft decision decoding on QAM signals, which comprises multipliers for multiplying reference signals and channel estimation signals, subtractors for subtracting a receive signal of a receiver from output signals of the multipliers, first and second square calculators for squaring the subtractors' output signals and reference signals, dividers for dividing output signals of the first and second square calculators by addition values, and a comparator for comparing output signals of the dividers.

摘要翻译： 公开了一种软判决解码器和用于软判决解码的对数似然比计算器及其方法，用于考虑用于对QAM信号执行软判决解码的信道估计误差来实现广义对数似然比算法，其包括用于乘法的乘法器 参考信号和信道估计信号，用于从乘法器的输出信号中减去接收机的接收信号的减法器，用于平方减法器的输出信号和参考信号的第一和第二平方计算器，用于分割第一和第二正方形的输出信号的分频器 计算器，以及用于比较分频器的输出信号的比较器。

公开(公告)号：US20070130598A1

公开(公告)日：2007-06-07

申请号：US11607637

申请日：2006-11-30

申请人： Eun-A Choi ,  Nae-Soo Kim ,  Dae-Ig Chang ,  Deock-Gil Oh

发明人： Eun-A Choi ,  Nae-Soo Kim ,  Dae-Ig Chang ,  Deock-Gil Oh

IPC分类号： H04N7/173 ,  H04N7/18 ,  H04N7/16 ,  H04N7/20

CPC分类号： H04L12/2803 ,  H04B3/54 ,  H04B2203/5441 ,  H04B2203/5445 ,  H04L12/2801 ,  H04L12/2818 ,  H04L2012/2841 ,  H04L2012/2843 ,  H04N21/4131 ,  H04N21/4227 ,  H04N21/4355 ,  H04N21/43615 ,  H04N21/478 ,  H04N21/6143 ,  H04N21/6193 ,  H04N21/6547

摘要： Provided is a digital satellite broadcasting set-top box and a home network control system employing the same. The set-top box includes: a satellite signal receiving unit for receiving a satellite signal including a home network control signal for controlling the household appliances through a satellite broadcasting network from a remote terminal; and a control unit for extracting a household appliances control signal included in the satellite signal transmitted from the satellite signal receiving unit and commanding a power line converter to transmit the household appliances control signal to a corresponding household appliance, wherein the power line converter converts the household appliances control signal transmitted from the digital satellite broadcasting set-top box into a power line communication signal and transmits the power line communication signal on the home network through a power line.

摘要翻译： 提供了一种数字卫星广播机顶盒和采用其的家庭网络控制系统。 机顶盒包括：卫星信号接收单元，用于通过卫星广播网络从远程终端接收包括用于控制家用电器的家庭网络控制信号的卫星信号; 以及控制单元，用于提取从卫星信号接收单元发送的卫星信号中包含的家用电器控制信号，并指示电力线转换器将家用电器控制信号发送到相应的家用电器，其中电力线转换器将家庭 家用电器控制信号从数字卫星广播机顶盒发送到电力线通信信号，并通过电力线在家庭网络上发送电力线通信信号。

公开(公告)号：US07180962B2

公开(公告)日：2007-02-20

申请号：US11036344

申请日：2004-12-17

申请人： Dae-Ig Chang ,  Nae-Soo Kim

发明人： Dae-Ig Chang ,  Nae-Soo Kim

IPC分类号： H04L5/12

CPC分类号： H04L1/0003 ,  H04L1/0032 ,  H04L1/0038 ,  H04L27/183

摘要： An apparatus and a method for demodulation using detection of channel adaptive modulation scheme are disclosed. The apparatus includes: a receiving unit for receiving a signal modulated based on the channel adaptive modulation scheme from an external; a demodulating unit for demodulating the modulated signal according to modulation scheme information; a modulation scheme detecting unit for determining modulation scheme information by detecting mapping information from the demodulated signal and outputting the modulation scheme information to the demodulating unit; and a decoding unit for performing an error correction on the demodulated signal and decoding the demodulated signal by using the determined modulation scheme information.

摘要翻译： 公开了使用信道自适应调制方案的检测的装置和方法。 该装置包括：接收单元，用于从外部接收基于信道自适应调制方案调制的信号; 解调单元，用于根据调制方案信息解调调制信号; 调制方式检测单元，用于通过从解调信号检测映射信息来确定调制方案信息，并将调制方案信息输出到解调单元; 以及解码单元，用于对解调信号执行纠错，并通过使用确定的调制方案信息对解调信号进行解码。

公开(公告)号：US20050135507A1

公开(公告)日：2005-06-23

申请号：US11036344

申请日：2004-12-17

申请人： Dae-Ig Chang ,  Nae-Soo Kim

发明人： Dae-Ig Chang ,  Nae-Soo Kim

IPC分类号： H04L1/00 ,  H04L5/12 ,  H04L27/18

CPC分类号： H04L1/0003 ,  H04L1/0032 ,  H04L1/0038 ,  H04L27/183

摘要： An apparatus and a method for demodulation using detection of channel adaptive modulation scheme are disclosed. The apparatus includes: a receiving unit for receiving a signal modulated based on the channel adaptive modulation scheme from an external; a demodulating unit for demodulating the modulated signal according to modulation scheme information; a modulation scheme detecting unit for determining modulation scheme information by detecting mapping information from the demodulated signal and outputting the modulation scheme information to the demodulating unit; and a decoding unit for performing an error correction on the demodulated signal and decoding the demodulated signal by using the determined modulation scheme information.

摘要翻译： 公开了使用信道自适应调制方案的检测的装置和方法。 该装置包括：接收单元，用于从外部接收基于信道自适应调制方案调制的信号; 解调单元，用于根据调制方案信息解调调制信号; 调制方式检测单元，用于通过从解调信号检测映射信息来确定调制方案信息，并将调制方案信息输出到解调单元; 以及解码单元，用于对解调信号执行纠错，并通过使用所确定的调制方案信息对解调信号进行解码。

公开(公告)号：US07750823B2

公开(公告)日：2010-07-06

申请号：US11776161

申请日：2007-07-11

申请人： Jin Kyeong Kim ,  Nae-Soo Kim ,  Cheol Sig Pyo

发明人： Jin Kyeong Kim ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC分类号： G08G1/08

CPC分类号： G08G1/161 ,  G08G1/056

摘要： An apparatus allocates a channel used for inter-vehicle communications according to a traveling direction. The apparatus includes a traveling direction determiner for determining whether or not a traveling direction of a vehicle is changed; and a channel allocator for allocating the vehicle a previously allocated channel or a new channel based on a determined result of the traveling direction determiner. Further, a method allocates a channel used for inter-vehicle communications according to a traveling direction. The method includes the steps of determining whether or not a traveling direction of a vehicle is changed; and allocating the vehicle a previously allocated channel or a new channel based on a determined result in the above step.

摘要翻译： 一种装置根据行驶方向分配用于车辆间通信的信道。 该装置包括用于确定车辆的行进方向是否改变的行进方向确定器; 以及信道分配器，用于基于行进方向确定器的确定结果来分配车辆先前分配的信道或新信道。 此外，方法根据行驶方向分配用于车辆间通信的信道。 该方法包括以下步骤：确定车辆行驶方向是否改变; 以及在上述步骤中基于所确定的结果来分配车辆先前分配的信道或新信道。

公开(公告)号：US20060136799A1

公开(公告)日：2006-06-22

申请号：US11265451

申请日：2005-11-02

申请人： Eun-A Choi ,  Nae-Soo Kim ,  Deock-Gil Oh ,  Ji-Won Jung

发明人： Eun-A Choi ,  Nae-Soo Kim ,  Deock-Gil Oh ,  Ji-Won Jung

IPC分类号： H03M13/00

CPC分类号： H03M13/11

摘要： Provided are an LDPC decoding apparatus and method using a sequential decoding algorithm having a partial group, capable of reducing the number of an iterative decoding by more than half without degrading the performance and increasing an amount of computation. The LDPC decoding method includes the steps of: receiving a prior probability information (channel values) based on information on channel values associated with distance between symbol signals in constellation related to the received noise and LDPC encoded data, and initializing bit nodes; dividing check nodes into partial groups before updating check node information based on the prior probability information, and performing a decoding by applying a sequential decoding algorithm; determining whether a parity check equations are satisfied; and outputting decoded messages obtained when satisfying the parity check equation or after terminating an iterative processor by a termination algorithm.

公开(公告)号：US20050144543A1

公开(公告)日：2005-06-30

申请号：US10888167

申请日：2004-07-09

申请人： Eun-A Choi ,  Nae-Soo Kim ,  Ji-Won Jung ,  Sung-Jun Cho ,  Tae-Gil Lee ,  Sang-Jin Park ,  In-Ki Lee

发明人： Eun-A Choi ,  Nae-Soo Kim ,  Ji-Won Jung ,  Sung-Jun Cho ,  Tae-Gil Lee ,  Sang-Jin Park ,  In-Ki Lee

IPC分类号： G06F11/00

CPC分类号： H04L1/0057 ,  H03M13/1105 ,  H03M13/6337 ,  H03M13/6594 ,  H04L2001/0093

摘要： The present invention relates to a pre-processing apparatus using nonuniform quantization of a channel reliability value and a low density parity check (LDPC) decoding system. The pre-processing apparatus can present degradation in performance and be embodied simply by performing decoding pre-process by estimating a discrete channel reliability value (Lc*) through nonuniform quantization of a channel reliability value based on a relations between a bit error rate (BER) estimated through a simulation performed in advance and a standard deviation (σ) of channel noise within a predetermined range of noise estimation error and p, and bit-shifting a receiving signal as much as a discrete channel reliability value. The pre-processing apparatus includes: a channel reliability measuring unit, a nonuniform quantizing unit, a sign bit adding unit, a bit shifting unit.

摘要翻译： 本发明涉及使用信道可靠性值和低密度奇偶校验（LDPC）解码系统的非均匀量化的预处理装置。 预处理装置可以呈现性能下降，并且通过基于信道可靠性值的非均匀量化来估计离散信道可靠性值（L> c * *）来执行解码预处理 通过预先执行的模拟估计的误码率（BER）与噪声估计误差和p的预定范围内的信道噪声的标准偏差（sigma）之间的关系，以及将接收信号与离散信道 可靠性值。 预处理装置包括：信道可靠性测量单元，不均匀量化单元，符号位加法单元，位移单元。

公开(公告)号：US08089909B2

公开(公告)日：2012-01-03

申请号：US12149255

申请日：2008-04-29

申请人： Se Han Kim ,  Kyeseon Lee ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

发明人： Se Han Kim ,  Kyeseon Lee ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC分类号： G08C17/00 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04W74/0808 ,  H04L7/041 ,  H04W52/0216 ,  H04W74/002 ,  Y02D70/166

摘要： Provided is a method of transmitting/receiving data in a sensor node for reducing overhearing of sensor nodes, and a sensor network which implements the method. A sender node having transmission data from among a plurality of nodes which perform a low power listening (LPL) operation in an asynchronous manner at predetermined time intervals, generates a long preamble including short preambles, each having information including a destination address of the transmission data, a remainder of the long preamble, and a length of the transmission data, and sequentially transmits the second preamble and the transmission data. A receiver node from among the plurality of nodes determines whether a valid signal is sensed during an active state in the LPL operation. If it is determined that the valid signal is sensed, the receiver node receives the short preamble transmitted from the sender node. The receiver node determines a duration time of a deactivated state of the receiver node based on the received first preamble, thereby reducing overhearing in the sensor network.

摘要翻译： 提供了一种在传感器节点中发送/接收数据以减少传感器节点的窃听的方法，以及实现该方法的传感器网络。 具有以预定时间间隔以异步方式执行低功率监听（LPL）操作的多个节点的发送数据的发送方节点生成包括短前导码的长前导码，每个具有包含发送数据的目的地地址的信息 ，长前导码的剩余部分和发送数据的长度，并顺序发送第二前同步码和发送数据。 多个节点中的接收器节点确定在LPL操作中的活动状态期间是否感测到有效信号。 如果确定感测到有效信号，则接收器节点接收从发送器节点发送的短前置码。 接收机节点基于接收到的第一前导码来确定接收机节点的去激活状态的持续时间，从而减少传感器网络中的窃听。

公开(公告)号：US20110194471A1

公开(公告)日：2011-08-11

申请号：US12808542

申请日：2008-10-24

申请人： Ji-Eun Kim ,  Kang Ho-yong ,  Nae-Soo Kim ,  Cheol-l-Sig Pyo

发明人： Ji-Eun Kim ,  Kang Ho-yong ,  Nae-Soo Kim ,  Cheol-l-Sig Pyo

IPC分类号： H04W52/02

CPC分类号： H04W52/0235

摘要： Provided are a wake-up apparatus and wake-up method for a low power sensor node, and more particularly, to a wake-up apparatus and wake-up method for a low power sensor node, which can extend the battery life of the sensor node and minimize the amount of power consumed by an entire sensor network power by minimizing unnecessary power consumption of the sensor node. The wake-up apparatus for a low power sensor node includes: a wake-up signal detector receiving and detecting a wake-up signal of a sensor node; a wake-up radio frequency (RF) circuit unit filtering and amplifying the wake-up signal; and a wake-up baseband transducer detecting a wake-up address from the wake-up signal and comparing and verifying the wake-up address with a wake-up address that is provided from a server managing the sensor node. The wake-up apparatus outputs an interrupt signal for transmitting a sensing event of the sensor node or outputs a wake-up address of another sensor node in an area where the interrupt signal is to be sensed if errors are not detected when the wake-up address is verified.

摘要翻译： 提供了用于低功率传感器节点的唤醒装置和唤醒方法，更具体地，涉及用于低功率传感器节点的唤醒装置和唤醒方法，其可以延长传感器的电池寿命 节点，并通过最小化传感器节点的不必要的功耗来最小化整个传感器网络功率消耗的功率量。 用于低功率传感器节点的唤醒装置包括：唤醒信号检测器，其接收并检测传感器节点的唤醒信号; 唤醒射频（RF）电路单元对唤醒信号进行滤波和放大; 以及唤醒基带传感器，从唤醒信号检测唤醒地址，并用从管理传感器节点的服务器提供的唤醒地址来比较和验证唤醒地址。 唤醒装置输出用于发送传感器节点的感测事件的中断信号，或者在唤醒时未检测到错误的情况下，在要检测中断信号的区域中输出另一个传感器节点的唤醒地址 地址已验证。

公开(公告)号：US07804455B2

公开(公告)日：2010-09-28

申请号：US11782195

申请日：2007-07-24

申请人： Jong Moon Lee ,  Nae-Soo Kim ,  Cheol Sig Pyo ,  Ik Guen Choi

发明人： Jong Moon Lee ,  Nae-Soo Kim ,  Cheol Sig Pyo ,  Ik Guen Choi

IPC分类号： H01Q21/00

CPC分类号： H01Q1/2216 ,  H01Q9/0407 ,  H01Q21/245

摘要： Provided are an antenna apparatus for linearly polarized diversity antennas in a radio frequency identification (RFID) reader, and a method of controlling the antenna apparatus. The antenna apparatus includes: a plurality of linearly polarized diversity antennas disposed to have different directions to one another; a switching unit connecting the linearly polarized diversity antennas to the RFID reader; and a controller controlling the switching unit to selectively activate the linearly polarized diversity antennas.

摘要翻译： 提供了一种用于射频识别（RFID）读取器中的线性极化分集天线的天线装置和控制天线装置的方法。 天线装置包括：多个线性极化分集天线，被设置为具有彼此不同的方向; 将线性极化分集天线连接到RFID读取器的开关单元; 以及控制器，控制所述切换单元选择性地激活所述线性极化分集天线。