公开(公告)号：US08866622B2

公开(公告)日：2014-10-21

申请号：US13308759

申请日：2011-12-01

Applicant: Sang-Yub Lee ,  Hyo-Sub Choi ,  Chul-Dong Lee ,  Sang-Hyun Park

Inventor： Sang-Yub Lee ,  Hyo-Sub Choi ,  Chul-Dong Lee ,  Sang-Hyun Park

IPC: G08B23/00 ,  A61B5/00 ,  B60K28/06 ,  A61B5/18 ,  G08B21/06 ,  A61B5/0476

CPC classification number: G08B21/06 ,  A61B5/0476 ,  A61B5/18 ,  A61B5/6835 ,  A61B5/6893 ,  B60K28/066

Abstract: A system and a method for preventing drowsiness are provided. The system for preventing drowsiness calculates brainwaves of a user by receiving a signal around a head of a user without contact, detects a state of the user based on the calculated brainwaves, and performs a necessary function according to the detected state of the user. Thus, convenience is increased when measuring the brainwaves of the driver using the contactless electrodes.

Abstract translation: 提供了一种用于预防困倦的系统和方法。 用于防止嗜睡的系统通过接收用户头部周围的信号而没有接触来计算用户的电波，基于所计算的脑电波检测用户的状态，并且根据用户的检测状态执行必要的功能。 因此，当使用非接触电极测量驾驶员的电波时，方便性增加。

公开(公告)号：US08681017B2

公开(公告)日：2014-03-25

申请号：US12979510

申请日：2010-12-28

Applicant: Sang Yub Lee ,  Hyo Sub Choi ,  Chul Dong Lee

Inventor： Sang Yub Lee ,  Hyo Sub Choi ,  Chul Dong Lee

IPC: G08G1/09

CPC classification number: H04B10/116 ,  H04B10/1149

Abstract: A visible light communication apparatus for a vehicle is provided. The visible light communication apparatus for the vehicle includes a vehicle optical receiver for receiving a visible light signal including a tunnel light node ID, a front passing vehicle node ID, and tunnel environment data, from a tunnel light and converting the visible light signal to an electric signal; and a vehicular visible light emitting diode unit arranged to face the optical receiver for converting vehicle speed and location information calculated by counting tunnel light node IDs received over a certain time, to a visible light signal and sending the visible light signal to the tunnel light. Using the vehicular visible light communication apparatus and the tunnel light having the visible light communication function, an efficient vehicular communication system can be built in the tunnel.

Abstract translation: 提供一种用于车辆的可见光通信装置。 车辆的可见光通信装置包括车载光接收器，用于从隧道灯接收包括隧道灯节点ID，前通过车辆节点ID和隧道环境数据的可见光信号，并将可见光信号转换为 电信号; 以及车辆用可见光发光二极管单元，被布置为面向光接收器，用于将通过在一定时间接收到的隧道光节点ID计数的车速和位置信息转换为可见光信号，并将可见光信号发送到隧道灯。 使用车辆可见光通信装置和具有可见光通信功能的隧道灯，可以在隧道中建立有效的车辆通信系统。

公开(公告)号：US07953184B2

公开(公告)日：2011-05-31

申请号：US12124881

申请日：2008-05-21

Applicant: Sang Yub Lee ,  Chang Soo Yang Yang ,  Wan Cheol Yang

Inventor： Sang Yub Lee ,  Chang Soo Yang Yang ,  Wan Cheol Yang

IPC: H04L27/18 ,  H04L27/22 ,  H04B1/30

CPC classification number: H04L27/0014 ,  H04L2027/0024 ,  H04L2027/0046

Abstract: There are provided a direct sampling type wireless receiver and a method using the same that reduce nonlinearity and DC offset by using a multi-port network and a carrier frequency direct conversion method with a low sampling rate of a direct sampling method in a wireless communication receiver. A direct sampling type wireless receiver according to an aspect of the invention includes: a reference signal generation unit supplying a first reference signal having a predetermined frequency and a second reference signal having a higher frequency than the first reference signal; a down sampling unit sampling an input RF signal according to the first reference signal; an analog-to-digital converting unit converting the signal sampled by the down sampling unit into a digital signal according to the second reference signal; and a multiple-input multiple-output port unit dividing the digital signal from the analog-to-digital converting unit into a plurality of digital signals, generating a plurality of carrier signals having different phases from each other by shifting phases of the digital signals, and outputting a plurality of phase signals having different phases from each other by adding the plurality of carrier signals and the plurality of digital signals to each other.

Abstract translation: 提供了一种直接取样型无线接收机及其使用方法，其通过使用多端口网络和在无线通信接收机中具有直接采样方式的低采样率的载波频率直接转换方法来减少非线性和DC偏移 。 根据本发明的一个方面的直接采样型无线接收机包括：提供具有预定频率的第一参考信号的参考信号产生单元和具有比第一参考信号更高频率的第二参考信号; 下采样单元，根据第一参考信号对输入RF信号进行采样; 模拟数字转换单元，根据第二参考信号将由下采样单元采样的信号转换为数字信号; 以及将来自模数转换单元的数字信号分割为多个数字信号的多输入多输出端口单元，通过移位数字信号的相位来产生具有不同相位的多个载波信号， 并且通过将多个载波信号和多个数字信号彼此相加来输出具有彼此不同相位的多个相位信号。

公开(公告)号：US20100294355A1

公开(公告)日：2010-11-25

申请号：US12629628

申请日：2009-12-02

Applicant: Won-Kook Choi ,  Dong Hee Park ,  Dong-Ick Son ,  Sang Yub Lee ,  Ji-Won Choi

Inventor： Won-Kook Choi ,  Dong Hee Park ,  Dong-Ick Son ,  Sang Yub Lee ,  Ji-Won Choi

IPC: H01L31/00 ,  H01L31/04 ,  H01L31/18

CPC classification number: H01L31/035281 ,  H01L31/0392 ,  H01L31/03923 ,  H01L31/03925 ,  H01L31/073 ,  H01L51/0042 ,  H01L51/426 ,  Y02E10/541 ,  Y02E10/543 ,  Y02E10/549 ,  Y02P70/521

Abstract: A high-efficiency solar cell device of the present invention comprising an active layer composed of a p-i-n form polymer-quantum dot composite having a consolidated core/shell structure which is formed by heating a coating layer of a solution of an organic-inorganic mixture of a p-type organic polymer, an n-type organic compound, and a semiconductor quantum dot dissolved in an organic solvent is capable of overcoming the shortcoming of the conventional solar cell devices having a multi-layered thin film structure.

Abstract translation: 本发明的高效率太阳能电池器件包括由具有固化核/壳结构的pin形式的聚合物 - 量子点复合物构成的活性层，该活性层通过加热有机 - 无机混合物的溶液的涂层而形成 溶解在有机溶剂中的p型有机聚合物，n型有机化合物和半导体量子点能够克服具有多层薄膜结构的传统太阳能电池器件的缺点。

公开(公告)号：US20100091742A1

公开(公告)日：2010-04-15

申请号：US12468324

申请日：2009-05-19

Applicant: Sang Yub Lee ,  Chang Soo Yang

Inventor： Sang Yub Lee ,  Chang Soo Yang

IPC: H04J3/06

CPC classification number: H04L7/042 ,  H04L27/2601

Abstract: Provides is a correlation method for acquiring a synchronization in a wireless local area network (WLAN). In the correlation method, an auto-correlation value is measured in a receive (RX) signal based on the WLAN standard by use of a successive partial short preambles. A time point when the auto-correlation value becomes smaller than a predetermined threshold value is detected. A cross-correlation value for the successive partial short preambles is measured from the time point when the auto-correlation value becomes smaller than the predetermined threshold value. A time point when the cross-correlation value becomes maximum is determined as a reference time point for synchronization acquisition.

Abstract translation: 提供一种用于获取无线局域网（WLAN）中的同步的相关方法。 在相关方法中，通过使用连续的部分短前导码，基于WLAN标准在接收（RX）信号中测量自相关值。 检测自动相关值变得小于预定阈值的时间点。 从自相关值变得小于预定阈值的时间点测量连续部分短前导码的互相关值。 将互相关值变为最大的时间点被确定为用于同步获取的参考时间点。

公开(公告)号：US20080068255A1

公开(公告)日：2008-03-20

申请号：US11850636

申请日：2007-09-05

Applicant: Wan Cheol YANG ,  Chang Soo Yang ,  Sang Yub Lee

Inventor： Wan Cheol YANG ,  Chang Soo Yang ,  Sang Yub Lee

IPC: G01S1/02

CPC classification number: G01S13/76

Abstract: A ranging apparatus includes a reference pulse generator generating a reference pulse having a first frequency at a first point in time of transmitting a ranging signal from a first device; a delay pulse generator generating a delay pulse signal having a second frequency at a second point in time of receiving the a response signal transmitted from the second device in response to the ranging signal; an overlap detector detecting a third point in time that the reference and delay pulses overlap each other; a counter counting one of the reference and delay pulses until the third point; and a distance calculator calculating an amount of time from the first point to the second point by applying the first and second frequencies, and a count value of the counter and calculating the distance between the first device and the second device by using the amount of time.

Abstract translation: 测距装置包括参考脉冲发生器，在从第一设备发送测距信号的第一时间点产生具有第一频率的参考脉冲; 延迟脉冲发生器，在接收到响应于测距信号从第二设备发送的响应信号的第二时刻产生具有第二频率的延迟脉冲信号; 检测第三时间点的参考和延迟脉冲彼此重叠的重叠检测器; 计数参考和延迟脉冲之一直到第三点的计数器; 以及距离计算器，通过应用第一和第二频率来计算从第一点到第二点的时间量，以及计数器的计数值，并且使用时间量计算第一设备和第二设备之间的距离 。

公开(公告)号：US20120139733A1

公开(公告)日：2012-06-07

申请号：US13308759

申请日：2011-12-01

Applicant: Sang-Yub Lee ,  Hyo-Sub Choi ,  Chul-Dong Lee ,  Sang-Hyun Park

Inventor： Sang-Yub Lee ,  Hyo-Sub Choi ,  Chul-Dong Lee ,  Sang-Hyun Park

IPC: G08B23/00

CPC classification number: G08B21/06 ,  A61B5/0476 ,  A61B5/18 ,  A61B5/6835 ,  A61B5/6893 ,  B60K28/066

Abstract: A system and a method for preventing drowsiness are provided. The system for preventing drowsiness calculates brainwaves of a user by receiving a signal around a head of a user without contact, detects a state of the user based on the calculated brainwaves, and performs a necessary function according to the detected state of the user. Thus, convenience is increased when measuring the brainwaves of the driver using the contactless electrodes.

Abstract translation: 提供了一种用于预防困倦的系统和方法。 用于防止嗜睡的系统通过接收用户头部周围的信号而没有接触来计算用户的电波，基于所计算的脑电波检测用户的状态，并且根据用户的检测状态执行必要的功能。 因此，当使用非接触电极测量驾驶员的电波时，便利性增加。

公开(公告)号：US07752010B2

公开(公告)日：2010-07-06

申请号：US11967796

申请日：2007-12-31

Applicant: Wan Cheol Yang ,  Chang Soo Yang ,  Sang Yub Lee

Inventor： Wan Cheol Yang ,  Chang Soo Yang ,  Sang Yub Lee

IPC: G01B5/02 ,  G01S13/08

CPC classification number: G01S13/76

Abstract: There is provided a distance measuring apparatus having system flexibility by varying a distance measuring range and a distance measuring resolution according to an environment and circumstance. The apparatus includes a reference pulse generator and a delay pulse generator capable of controlling frequencies of a reference pulse and a delay pulse and duty ratios of the reference pulse and the delay pulse. The reference pulse generator and the delay pulse generator include a programmable clock generation unit generating a clock of a frequency determined by a frequency control signal and a duty ratio control unit controlling a duty ratio of the clock generated by the programmable clock generation unit.

Abstract translation: 通过根据环境和环境改变距离测量范围和距离测量分辨率，提供了具有系统灵活性的距离测量装置。 该装置包括参考脉冲发生器和能够控制参考脉冲和延迟脉冲的频率以及参考脉冲和延迟脉冲的占空比的延迟脉冲发生器。 参考脉冲发生器和延迟脉冲发生器包括产生由频率控制信号确定的频率的时钟的可编程时钟产生单元和控制由可编程时钟产生单元产生的时钟占空比的占空比控制单元。

公开(公告)号：US20100142588A1

公开(公告)日：2010-06-10

申请号：US12616439

申请日：2009-11-11

Applicant: Chang Soo Yang ,  Hyung Chul Park ,  Wan Cheol Yang ,  Sang Yub Lee

Inventor： Chang Soo Yang ,  Hyung Chul Park ,  Wan Cheol Yang ,  Sang Yub Lee

IPC: H04B1/00

CPC classification number: H04B1/707 ,  H04J13/0003

Abstract: A parallel sequence spread spectrum type chaotic signal transmission device is disclosed to convert a serial data signal into a parallel data signal and transmit a chaotic signal according to the converted data signal. The parallel sequence spread spectrum type chaotic signal transmission device includes: a signal converting unit that converts serial data desired to be transmitted into parallel data having a pre-set unit; a chaotic signal generating unit that generates a pre-set chaotic signal; and an amplifying unit that amplifies the chaotic signal from the chaotic signal generating unit according to the data which has been converted by the signal converting unit.

Abstract translation: 公开了一种并行序列扩频型混沌信号传输装置，用于将串行数据信号转换为并行数据信号，并根据转换的数据信号发送混沌信号。 并行序列扩频型混沌信号发送装置包括：信号转换单元，将期望发送的串行数据转换成具有预设单元的并行数据; 混沌信号生成单元，其生成预设混沌信号; 以及放大单元，其根据由信号转换单元转换的数据，放大来自混沌信号生成单元的混沌信号。

公开(公告)号：US07663536B2

公开(公告)日：2010-02-16

申请号：US11850636

申请日：2007-09-05

Applicant: Wan Cheol Yang ,  Chang Soo Yang ,  Sang Yub Lee

Inventor： Wan Cheol Yang ,  Chang Soo Yang ,  Sang Yub Lee

IPC: G01S1/02

CPC classification number: G01S13/76

Abstract: A ranging apparatus includes a reference pulse generator generating a reference pulse having a first frequency at a first point in time of transmitting a ranging signal from a first device; a delay pulse generator generating a delay pulse signal having a second frequency at a second point in time of receiving the a response signal transmitted from the second device in response to the ranging signal; an overlap detector detecting a third point in time that the reference and delay pulses overlap each other; a counter counting one of the reference and delay pulses until the third point; and a distance calculator calculating an amount of time from the first point to the second point by applying the first and second frequencies, and a count value of the counter and calculating the distance between the first device and the second device by using the amount of time.

Abstract translation: 测距装置包括参考脉冲发生器，在从第一设备发送测距信号的第一时间点产生具有第一频率的参考脉冲; 延迟脉冲发生器，在接收到响应于测距信号从第二设备发送的响应信号的第二时刻产生具有第二频率的延迟脉冲信号; 检测第三时间点的参考和延迟脉冲彼此重叠的重叠检测器; 计数参考和延迟脉冲之一直到第三点的计数器; 以及距离计算器，通过应用第一和第二频率来计算从第一点到第二点的时间量，以及计数器的计数值，并且使用时间量计算第一设备和第二设备之间的距离 。