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    Handoff monitoring in cellular communication networks using slow frequency hopping
    3.
    发明授权
    Handoff monitoring in cellular communication networks using slow frequency hopping 失效
    使用慢跳频的蜂窝通信网络中的切换监控

    公开(公告)号：US5448569A

    公开(公告)日：1995-09-05

    申请号：US226724

    申请日：1994-04-12

    申请人： Chia-Chi Huang ,  David F. Bantz ,  Frederic Bauchot ,  Kadathur S. Natarajan ,  Anand Narasimhan ,  Michele M. Wetterwald

    发明人： Chia-Chi Huang ,  David F. Bantz ,  Frederic Bauchot ,  Kadathur S. Natarajan ,  Anand Narasimhan ,  Michele M. Wetterwald

    IPC分类号： G06F13/00 ,  H04L12/28 ,  H04W24/00 ,  H04W36/08 ,  H04W36/30 ,  H04W84/12 ,  H04B7/216 ,  H04B7/26

    CPC分类号： H04W36/30 ,  H04B1/713 ,  H04W24/00 ,  H04W36/08 ,  H04W84/12

    摘要： Methods for handoff in a wireless communication network including a local area network connected to a plurality of base stations, each of which has a geographic area, defined as a cell, within which mobile stations can communicate with a base station, with each such base station being capable of performing bidirectional wireless communication with one or more of said mobile stations under control of a controller, with communication between base stations and mobile stations being performed by frequency hopping, with there being n available frequency hopping channels in a fixed frequency band, with each channel being of a same fixed duration and having a fixed frequency different than another channel. The handoff method employs structure and techniques for determining by a mobile station that the quality of transmission between itself and a current base station has degraded below a predetermined performance level, structure and technique for the mobile station to listen to each of successive frequency channels for a duration substantially less than the fixed duration of a channel until it senses a transmission from another base station, and structure and techniques for transferring control of the mobile station to another base station in response to the sensed transmission.

    摘要翻译： 在包括连接到多个基站的局域网的无线通信网络中的切换的方法，每个基站具有被定义为小区的地理区域，移动台可以在其中与基站进行通信，每个这样的基站 能够在控制器的控制下与一个或多个所述移动台进行双向无线通信，基站和移动台之间的通信是通过跳频执行的，在固定频带中存在n个可用的跳频信道， 每个通道具有相同的固定持续时间并且具有与另一通道不同的固定频率。 切换方法采用结构和技术来确定移动台本身与当前基站之间的传输质量已经降低到低于预定性能水平的结构和技术，移动台用于监听每个连续频率信道的结构和技术 持续时间基本上小于信道的固定持续时间，直到其感测到来自另一个基站的传输，以及用于响应于所感测的传输将移动台的控制传送到另一个基站的结构和技术。

    Diversity transmission strategy in mobile/indoor cellula radio communications
    5.
    发明授权
    Diversity transmission strategy in mobile/indoor cellula radio communications 失效
    移动/室内无线电通信中的多样性传输策略

    公开(公告)号：US5507035A

    公开(公告)日：1996-04-09

    申请号：US56163

    申请日：1993-04-30

    申请人： David F. Bantz ,  Frederic J. Bauchot ,  Chia-Chi Huang ,  Nicholas J. A. Moulton

    发明人： David F. Bantz ,  Frederic J. Bauchot ,  Chia-Chi Huang ,  Nicholas J. A. Moulton

    IPC分类号： H04B7/08 ,  H04L1/02 ,  H04B1/02

    CPC分类号： H04B7/0817 ,  H04B7/0814

    摘要： In a mobile cellular communication system, a base station is wired to a Local Area Network (LAN), and has wireless communication with a plurality of mobile stations. Multipath fading is substantially reduced in the system by utilizing antenna diversity techniques at the base station and each of the plurality of mobile stations. The combination of the independent operation of antenna selection diversity at both a base station and a mobile station results in the selection of the best propagation path between the two stations.

    摘要翻译： 在移动蜂窝通信系统中，基站被连接到局域网（LAN），并且与多个移动台具有无线通信。 通过在基站和多个移动站中的每一个利用天线分集技术，系统中的多路径衰落被显着地减少。 在基站和移动台两者之间的天线选择分集的独立操作的组合导致选择两个站之间的最佳传播路径。

    Preparation method for an electron tomography sample with embedded markers and a method for reconstructing a three-dimensional image
    7.
    发明授权
    Preparation method for an electron tomography sample with embedded markers and a method for reconstructing a three-dimensional image 有权
    具有嵌入式标记的电子层析成像样品的制备方法和重建三维图像的方法

    公开(公告)号：US07939906B2

    公开(公告)日：2011-05-10

    申请号：US12471734

    申请日：2009-05-26

    申请人： Jian-Shing Luo ,  Chia-Chi Huang

    发明人： Jian-Shing Luo ,  Chia-Chi Huang

    IPC分类号： G01N23/04 ,  H01L23/58 ,  H01J37/26

    CPC分类号： G01N1/28 ,  G01N23/2202 ,  H01J2237/31745

    摘要： A manufacturing method for an electron tomography specimen with embedded fiducial markers includes the following steps. A chip of wafer is provided. The chip includes at least one inspecting area. At least one trench is produced beside the inspecting area. A liquid with the markers is filled into the trenches. A first protection layer is coated on the chip, and then a second protection layer is deposited on the first protection layer. Therefore, the markers can be embedded into the electron tomography specimen. The embedded markers can improve the alignment process, due to those embedded markers are easily tracked during feature tracking procedure. In addition, our novel invention also successfully provides a modified version of the technique to deposit gold beads onto TEM pillar samples for much improved 3D reconstruction.

    摘要翻译： 具有嵌入基准标记的电子断层摄影试样的制造方法包括以下步骤。 提供晶片芯片。 该芯片至少包括一个检查区域。 在检查区域旁边至少生产一个沟槽。 将具有标记的液体填充到沟槽中。 第一保护层涂覆在芯片上，然后第二保护层沉积在第一保护层上。 因此，标记物可以嵌入电子断层摄影标本中。 嵌入式标记可以改善对齐过程，因为在特征跟踪过程中可以轻松跟踪嵌入的标记。 此外，我们的新颖发明还成功地提供了一种技术的修改版本，以将金珠沉积到TEM柱样品上，用于大大改进的3D重建。

    Joint channel estimation and data detection method for STBC/OFDM systems
    8.
    发明申请
    Joint channel estimation and data detection method for STBC/OFDM systems 审中-公开

    公开(公告)号：US20080165672A1

    公开(公告)日：2008-07-10

    申请号：US11805823

    申请日：2007-05-24

    申请人： Meng-Lin Ku ,  Chia-Chi Huang

    发明人： Meng-Lin Ku ,  Chia-Chi Huang

    IPC分类号： H04J11/00

    CPC分类号： H04L1/0643 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/0236

    摘要： The present invention provides a joint channel estimation and data detection method for STBC/OFDM systems, comprising the following steps: a preliminary step, in which, after passing the received signals through an OFDM demodulator, frequency-domain signals R1[k] and R2[k] of the complementary-coded pilot preambles in two successive OFDM symbol times, as well as two successive OFDM data symbols R1(i)[k] and R2(i)[k] at the ith time slot, are obtained; an initial step for setting up the predetermined number Np of the channel path, using complementary-coded pilot preambles to estimate the channel impulse response, then using this estimation result of the channel impulse response to calculate a path selective set Sm,, and furthermore, in accordance with the path selective set Sm, determining the number Lm of the selected paths and the excess delay τm,l of the selected path, and then calculating the initial channel state information vector y(1,0) and the Hessian matrix F; a tracking step, in which the initial value v of the recursion index is set to 1 at first, and the maximum number of recursion is set to V; if the index v of recursion is 1, use sparse pilot subcarriers to calculate channel state information Ĥm[k], and calculate a searching direction vector Ψ that is obtained by using the sparse pilot subcarriers and then calculate a searching direction vector g(i,v)=μγΨ(i)+(1−μ)(F+λI2(L1+L2))−1∇ f(y(1,0)) if the index of recursion is not equal to 1, calculate the searching direction vector as g(i,v)=(F+λI2(L1+L2))−1∇ f(y(i,v−1)); next, update the channel state information vector by y(i,v)=y(i,v−1)−g(i,v), and increase the index of recursion by 1; if the index v of recursion is less than or equal to V, repeat the searching of the direction vector; finally, take the channel state information estimated at this time slot to be the initial value of the channel state information at the next time slot, i.e. y(i+1,0)=y(i,V).

    PROGRESSIVE PARALLEL INTERFERENCE CANCELLER AND METHOD AND RECEIVER THEREOF
    9.
    发明申请
    PROGRESSIVE PARALLEL INTERFERENCE CANCELLER AND METHOD AND RECEIVER THEREOF 有权
    渐进平行干扰消除器及其接收器

    公开(公告)号：US20110013735A1

    公开(公告)日：2011-01-20

    申请号：US12554930

    申请日：2009-09-07

    申请人： Chao-Wang Huang ,  Pang-An Ting ,  Jiun-Yo Lai ,  Chia-Chi Huang

    发明人： Chao-Wang Huang ,  Pang-An Ting ,  Jiun-Yo Lai ,  Chia-Chi Huang

    IPC分类号： H04B1/10

    CPC分类号： H04J11/004 ,  H04L27/2647

    摘要： A progressive parallel interference canceller (PPIC) and a method and a receiver thereof are illustrated. The PPIC reconstructs each subchannel interference reconstruction signal through several iterations and subtracts the corresponding subchannel interference reconstruction signal from each subchannel frequency-domain reception signal to obtain a subchannel frequency-domain signal. Thereby, according to the present disclosure, inter-channel interference can be cancelled without re-performing channel coding or estimating the signal to noise ratio (SNR) or frequency offset.

    摘要翻译： 示出了逐行并行干扰消除器（PPIC）及其方法和接收器。 PPIC通过几次迭代重构每个子信道干扰重建信号，并从每个子信道频域接收信号中减去相应的子信道干扰重建信号，以获得子信道频域信号。 因此，根据本公开，可以消除信道间干扰，而不需要重新进行信道编码或估计信噪比（SNR）或频率偏移。