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88 条记录 (耗时 0.023 秒)

    Balanced optical-radiofrequency phase detector
    1.
    发明授权
    Balanced optical-radiofrequency phase detector 有权
    平衡光射频相位检测器

    公开(公告)号：US07397567B2

    公开(公告)日：2008-07-08

    申请号：US11609195

    申请日：2006-12-11

    申请人： Franz X. Kaertner ,  Jung-Won Kim

    发明人： Franz X. Kaertner ,  Jung-Won Kim

    IPC分类号： G01B9/02

    CPC分类号： G01J9/02 ,  G01J9/04 ,  G04G7/00 ,  H01S3/1304 ,  H01S3/2383

    摘要： A balanced optical-RF phase detector for the extraction of low-jitter radiofrequency (RF) signals from optical pulse trains is demonstrated. The extraction of the low-jitter radiofrequency signals is based on the precise phase detection by use of a differentially biased Sagnac-loop interferometer and synchronous detection. The phase-error signal from this balanced optical-RF phase detector, which is robust against drifts and photodetector nonlinearities, is used to regenerate low-jitter radiofrequency signals from optical pulse trains. Alternatively, the phase-error signal is used to generate a low-jitter optical pulse train, synchronized with a master radiofrequency signal or to synchronize multiple modelocked lasers with each other.

    摘要翻译： 证明了用于从光脉冲串提取低抖动射频（RF）信号的平衡光 - 射相位检测器。 低抖动射频信号的提取基于通过使用差分偏置的Sagnac环路干涉仪和同步检测的精确相位检测。 来自该平衡光 - RF相位检测器的相位误差信号对于漂移和光电检测器非线性都是鲁棒的，用于再生来自光脉冲串的低抖动射频信号。 或者，相位误差信号用于产生与主射频信号同步的低抖动光脉冲串，或者使多个锁模激光器彼此同步。

    Compact background-free balanced cross-correlators
    3.
    发明授权
    Compact background-free balanced cross-correlators 有权
    紧凑的无背景平衡互相关器

    公开(公告)号：US07940390B2

    公开(公告)日：2011-05-10

    申请号：US11947544

    申请日：2007-11-29

    申请人： Franz X. Kaertner ,  Franco N. C. Wong ,  Jung-Won Kim

    发明人： Franz X. Kaertner ,  Franco N. C. Wong ,  Jung-Won Kim

    IPC分类号： G01J1/10 ,  H01S3/10

    CPC分类号： G01J11/00 ,  H01S3/0014 ,  H01S3/1307 ,  H01S3/2383 ,  H01S2301/02

    摘要： A compact, background-free, balanced cross-correlator enables (a) the detection of a timing error between two ultrashort pulses with (sub-)femtosecond resolution and (b) the timing synchronization of ultrashort pulse lasers using the output signal of the detector to close a phase-locked loop and can therefore serve as an integral part of femtosecond timing distribution and synchronization systems.

    摘要翻译： 紧凑的无背景的平衡互相关器能够（a）利用（亚）飞秒分辨率检测两个超短脉冲之间的定时误差，以及（b）使用检测器的输出信号的超短脉冲激光器的定时同步 以闭合锁相环，因此可以作为飞秒定时分配和同步系统的组成部分。

    Compact Background-Free Balanced Cross-Correlators
    4.
    发明申请
    Compact Background-Free Balanced Cross-Correlators 有权
    紧凑的无背景平衡交叉相关器

    公开(公告)号：US20100045974A1

    公开(公告)日：2010-02-25

    申请号：US11947544

    申请日：2007-11-29

    申请人： Franz X. Kaertner ,  Franco N.C. Wong ,  Jung-Won Kim

    发明人： Franz X. Kaertner ,  Franco N.C. Wong ,  Jung-Won Kim

    IPC分类号： G01J1/42 ,  G01J1/10

    CPC分类号： G01J11/00 ,  H01S3/0014 ,  H01S3/1307 ,  H01S3/2383 ,  H01S2301/02

    摘要： A compact, background-free, balanced cross-correlator enables (a) the detection of a timing error between two ultrashort pulses with (sub-)femtosecond resolution and (b) the timing synchronization of ultrashort pulse lasers using the output signal of the detector to close a phase-locked loop and can therefore serve as an integral part of femtosecond timing distribution and synchronization systems.

    摘要翻译： 紧凑的无背景的平衡互相关器能够（a）利用（亚）飞秒分辨率检测两个超短脉冲之间的定时误差，以及（b）使用检测器的输出信号的超短脉冲激光器的定时同步 以闭合锁相环，因此可以作为飞秒定时分配和同步系统的组成部分。

    Display apparatus and method of driving the same
    5.
    发明授权
    Display apparatus and method of driving the same 有权
    显示装置及其驱动方法

    公开(公告)号：US09110300B2

    公开(公告)日：2015-08-18

    申请号：US13297178

    申请日：2011-11-15

    申请人： Jung-Won Kim ,  Junpyo Lee ,  Seonki Kim ,  Kang-Min Kim

    发明人： Jung-Won Kim ,  Junpyo Lee ,  Seonki Kim ,  Kang-Min Kim

    IPC分类号： G06T15/00 ,  G02B27/22 ,  H04N13/04 ,  G09G3/36

    CPC分类号： G02B27/2264 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0209 ,  G09G2320/0252 ,  G09G2320/0257 ,  G09G2320/0276 ,  G09G2340/0435 ,  G09G2340/16 ,  H04N13/341

    摘要： In a display apparatus, a frame rate converter divides an image signal into a first image frame for a left eye and a second image frame for a right eye, and generates a first intermediate image frame and a second intermediate image frame. A timing controller converts the first and second image frames to a first compensation frame and a second compensation frame, respectively, and sequentially provides the first compensation frame, the first intermediate image frame, the second compensation frame, and the second intermediate image frame to a data driver. The data driver converts the first and second compensation frames to left-eye and right-eye data voltages, respectively, and converts the first and second intermediate image frames to a predetermined black data voltage.

    摘要翻译： 在显示装置中，帧速转换器将图像信号分割为用于左眼的第一图像帧和用于右眼的第二图像帧，并且生成第一中间图像帧和第二中间图像帧。 定时控制器分别将第一和第二图像帧转换为第一补偿帧和第二补偿帧，并且将第一补偿帧，第一中间图像帧，第二补偿帧和第二中间图像帧依次提供给 数据驱动 数据驱动器将第一和第二补偿帧分别转换为左眼和右眼数据电压，并将第一和第二中间图像帧转换成预定的黑色数据电压。

    Method and system for allocating resources in a communication system
    8.
    发明授权
    Method and system for allocating resources in a communication system 有权
    在通信系统中分配资源的方法和系统

    公开(公告)号：US07835281B2

    公开(公告)日：2010-11-16

    申请号：US11801362

    申请日：2007-05-09

    申请人： Hee-Kwang Lee ,  Jung-Won Kim ,  Chang-Soo Park ,  Yoo-Seung Song

    发明人： Hee-Kwang Lee ,  Jung-Won Kim ,  Chang-Soo Park ,  Yoo-Seung Song

    IPC分类号： H04J1/16

    CPC分类号： H04L47/10 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0064 ,  H04L47/14 ,  H04L47/2441

    摘要： Disclosed is a method and system for allocating resources in a communication system. The method includes calculating a size of a transmission area for transmitting the generated data when data to be transmitted to mobile stations is generated; and controlling data to be transmitted through the transmission area and then allocating the controlled data to the transmission area according to priorities of data bursts based on sizes of the data bursts.

    摘要翻译： 公开了一种在通信系统中分配资源的方法和系统。 该方法包括当生成要发送到移动台的数据时，计算用于发送所生成数据的传输区域的大小; 以及控制要通过传输区域传输的数据，然后根据数据突发的大小根据数据突发的优先级将受控数据分配给传输区域。

    SYSTEM AND METHOD FOR PERFORMING SOFT HANDOVER IN BROADBAND WIRELESS ACCESS COMMUNICATION SYSTEM
    10.
    发明申请
    SYSTEM AND METHOD FOR PERFORMING SOFT HANDOVER IN BROADBAND WIRELESS ACCESS COMMUNICATION SYSTEM 审中-公开
    在宽带无线接入通信系统中执行软切换的系统和方法

    公开(公告)号：US20070281702A1

    公开(公告)日：2007-12-06

    申请号：US11773281

    申请日：2007-07-03

    申请人： Geun-Hwi Lim ,  Jae-Jeong Shim ,  Hong-Sung Chang ,  Yong Chang ,  Jung-Won Kim

    发明人： Geun-Hwi Lim ,  Jae-Jeong Shim ,  Hong-Sung Chang ,  Yong Chang ,  Jung-Won Kim

    IPC分类号： H04Q7/20

    CPC分类号： H04W36/18 ,  H04W36/08 ,  H04W48/16

    摘要： Disclosed is a system and method for performing soft handover in a broadband wireless access communication system. An anchor base station transmits first information including channel assignment information of an active non-anchor base station when it is determined that a mobile station is to perform the soft handover, and when there are signals to be transmitted to the mobile station from the non-anchor base station, the non-anchor base station transmits second information including channel assignment information of the anchor base station when it is determined that the mobile station is to perform the soft handover, and when there are signals to be transmitted to the mobile station from the anchor base station, and the mobile station receives signals from the anchor base station and the non-anchor base station corresponding to the first information and the second information when it is determined that the mobile station is to perform the soft handover.

    摘要翻译： 公开了一种在宽带无线接入通信系统中执行软切换的系统和方法。 当确定移动台要执行软切换时，锚基站发送包括主动非锚基站的信道分配信息的第一信息，并且当有从非接入点发送到移动台的信号时， 锚定基站，当确定移动台要执行软切换时，非锚基站发送包括锚基站的信道分配信息的第二信息，并且当有待向移动台发送信号时 锚基站和移动站在确定移动台要执行软切换时从锚基站和非锚基站接收对应于第一信息和第二信息的信号。