公开(公告)号：US08180004B2

公开(公告)日：2012-05-15

申请号：US12740028

申请日：2008-11-05

申请人： Hai Lin ,  Katsumi Yamashita

发明人： Hai Lin ,  Katsumi Yamashita

IPC分类号： H04L1/00

CPC分类号： H04L27/2657 ,  H04L27/2675

摘要： A received signal delivered through a transmission line can be compensated for carrier frequency offset and direct-current offset to improve the signal-to-noise ratio of the received signal, eventually resulting in an effective improvement in the error rate. The received signal has convoluted influences through the transmission line, so that observation of continual symbols of periodic pilot signals on the frequency axis shows just a phase shift by the carrier frequency offset. Therefore, the carrier frequency offset can be analytically found from the continual symbols of periodic pilot signals, thereby allowing the direct-current offset to be estimated and both the carrier frequency offset and the direct-current offset to be compensated for.

摘要翻译： 通过传输线传送的接收信号可以补偿载波频率偏移和直流偏移，以改善接收信号的信噪比，最终导致误码率的有效改善。 接收到的信号通过传输线路产生卷积影响，从而观察频率轴上周期性导频信号的连续符号只显示载波频率偏移的相移。 因此，可以从周期性导频信号的连续符号中分析地发现载波频率偏移，从而允许估计直流偏移，并补偿载波频率偏移和直流偏移。

公开(公告)号：US20100246723A1

公开(公告)日：2010-09-30

申请号：US12740028

申请日：2008-11-05

申请人： Hai Lin ,  Katsumi Yamashita

发明人： Hai Lin ,  Katsumi Yamashita

IPC分类号： H04B1/10 ,  H04L25/06

CPC分类号： H04L27/2657 ,  H04L27/2675

摘要： A received signal delivered through a transmission line can be compensated for CFO and DCO to improve the SNR of the received signal, eventually resulting in an effective improvement in the error rate. In this context, methods for estimating and compensating for CFO and DCO have been studied, for example, using pilot signals or a blind method. However, the methods would require a huge amount of calculations for the estimation of CFO in the presence of DCO, as with the ML method, or never essentially eliminate errors from an estimated value. The received signal has convoluted influences through the transmission line, so that observation of the continual symbols of periodic pilot signals on the frequency axis shows just a phase shift by the CFO. Therefore, the CFO can be analytically found from the continual symbols of periodic pilot signals, thereby allowing the DCO to be estimated and both the CFO and the DCO to be compensated for.

摘要翻译： 通过传输线传送的接收信号可以补偿CFO和DCO，以改善接收信号的SNR，最终导致错误率的有效改善。 在这方面，已经研究了用于估计和补偿CFO和DCO的方法，例如使用导频信号或盲法。 然而，如同ML方法一样，这些方法将需要大量的计算，以便在存在DCO的情况下估计CFO，或从不从本质上消除估计值的误差。 接收到的信号通过传输线路产生卷积影响，从而在频率轴上观察到周期性导频信号的连续符号只是CFO的相移。 因此，可以从周期性导频信号的连续符号中分析地找到CFO，从而允许估计DCO，并且补偿CFO和DCO。

公开(公告)号：US20100177851A1

公开(公告)日：2010-07-15

申请号：US12665455

申请日：2008-06-19

申请人： Hai Lin ,  Katsumi Yamashita

发明人： Hai Lin ,  Katsumi Yamashita

IPC分类号： H04L25/06 ,  H04L27/06

CPC分类号： H04L25/03343 ,  H04L25/06 ,  H04L27/2657 ,  H04L27/2676

摘要： A frequency offset (CFO) and a direct current component offset (DCO) occur in an OFDM scheme signal. To address this, such a method has been suggested which allows a pilot signal to be mixed with a communicated signal for compensation. However, if the pilot signal has a long duration, then a compensation method without the pilot signal is required to compensate signals during that period. However, no such a method is conventionally available which compensates for both the CFO and DCO without the pilot signal. Using the orthogonality of the OFDM signal, the matrix of a system in which CDO and DCO have occurred is subjected to the singular value decomposition, thereby predetermining the CFO candidate value which allows for demodulating zero from the received signal and an array of numerical values of CFO check data. Then, in a compensation section (17), the received signal is successively multiplied by the numerical values. The typical CFO value provided when the minimum value has been demodulated is outputted as an estimate value for compensation.

摘要翻译： 在OFDM方案信号中出现频率偏移（CFO）和直流分量偏移（DCO）。 为了解决这个问题，已经提出了这样的方法，其允许将导频信号与通信信号混合以进行补偿。 然而，如果导频信号具有较长的持续时间，则需要不具有导频信号的补偿方法来补偿该期间的信号。 然而，没有这种传统上可用的方法来补偿没有导频信号的CFO和DCO。 使用OFDM信号的正交性，其中发生CDO和DCO的系统的矩阵经受奇异值分解，从而预先确定允许从接收信号中解调零的CFO候选值和数字值 CFO检查数据。 然后，在补偿部（17）中，将接收信号依次乘以数值。 当解调最小值时提供的典型CFO值作为补偿的估计值被输出。

公开(公告)号：US20110206105A1

公开(公告)日：2011-08-25

申请号：US13125881

申请日：2009-11-02

申请人： Hai Lin ,  Katsumi Yamashita

发明人： Hai Lin ,  Katsumi Yamashita

IPC分类号： H04B17/00 ,  H04L27/01

CPC分类号： H04B7/0851 ,  H04B7/0426 ,  H04B7/0854

摘要： In a transmit/receive system, the carrier frequency offset (CFO), I/Q imbalance, and DC offset (DCO) can cause serious signal distortions. These analog losses can be compensated for individually or in combination of any two of them by following various methods that have been suggested. However, there have suggested no methods of simultaneously compensating, for these three types of losses that occur in actual devices at the same time. The present invention suggests a novel pilot signal that has a cyclic signal portion and a portion of two equally spaced continual signals. The invention provides a method for compensating for the CFO, I/Q imbalance, and DCO by simultaneously performing the time domain compensation and the channel estimation using those signal portions. The method also compensates for the I/Q imbalance and the channel response on the transmitter side in the OFDM scheme.

摘要翻译： 在发送/接收系统中，载波频率偏移（CFO），I / Q不平衡和DC偏移（DCO）可能导致严重的信号失真。 这些模拟损失可以通过遵循已经提出的各种方法单独地或通过其中任何两个的组合来补偿。 然而，对于同时在实际装置中发生的这三种类型的损耗，没有提出同时补偿的方法。 本发明提出了一种新颖的导频信号，其具有循环信号部分和两个等间隔的连续信号的一部分。 本发明提供了一种用于通过同时执行时域补偿和使用这些信号部分的信道估计来补偿CFO，I / Q不平衡和DCO的方法。 该方法还补偿OFDM方案中发射机侧的I / Q不平衡和信道响应。

公开(公告)号：US20100208783A1

公开(公告)日：2010-08-19

申请号：US12679581

申请日：2008-09-27

申请人： Hai Lin ,  Katsumi Yamashita

发明人： Hai Lin ,  Katsumi Yamashita

IPC分类号： H04B17/00 ,  H04L27/22 ,  H04J3/00

CPC分类号： H04L27/2657 ,  H04L27/2613 ,  H04L27/2675 ,  H04L27/3863 ,  H04L2027/0016 ,  H04L2027/0024 ,  H04L2027/0091

摘要： The OFDM scheme based communication system is currently being put into practical use because of its effective use of frequencies and its enhanced resistance to multipath. However, since the OFDM scheme treats multiplexed signals with overlapped spectra, the orthogonality between carriers are corrupted and the error rate characteristic is degraded in the presence of CFO. Furthermore, since locally oscillated signals different by a phase of π/2 are difficult to obtain in demodulating the I/Q signal, an imbalance is caused between the I/Q signals, resulting in degradation in the error rate characteristic. The invention suggests a novel pilot signal, and a method for analytically determining compensation values for CFO and I/Q imbalance and compensating for those distortions using the resulting values. Furthermore, the invention is applicable not only to the OFDM scheme but also to any protocol that involves pilot signals.

摘要翻译： 基于OFDM方案的通信系统目前正在投入实际使用，因为它有效地利用了频率并增强了对多路径的抵抗力。 然而，由于OFDM方案用重叠频谱处理多路复用信号，所以载波之间的正交性被破坏，并且在存在CFO的情况下错误率特性降低。 此外，由于在解调I / Q信号时难以获得与pgr / / 2的相位不同的局部振荡信号，所以在I / Q信号之间引起不平衡，导致误码率特性的劣化。 本发明提出了一种新颖的导频信号，以及用于分析地确定CFO和I / Q不平衡的补偿值并使用所得到的值来补偿那些失真的方法。 此外，本发明不仅适用于OFDM方案，而且也适用于涉及导频信号的任何协议。

公开(公告)号：US20200256777A1

公开(公告)日：2020-08-13

申请号：US16271755

申请日：2019-02-08

申请人： Hai Lin ,  Gregor Arthur Waldherr

发明人： Hai Lin ,  Gregor Arthur Waldherr

IPC分类号： G01N15/02

摘要： Disclosed herein is a novel, compact optical particle identification and characterization system and method of use within both gaseous and liquid media. The system can implement both elastic and inelastic light scattering techniques simultaneously under the same sensor platform. By separating the sensing components from the electro-optical unit and using optical fibers for interconnection, only the sensing components need to be exposed to the environmental conditions. This reduces the design constraints on the electro-optical unit and permits the incorporation of optical components into the sensing probe that can withstand high-temperature, high-pressure, and corrosive environments. Thus, the system can be used in benign, moderate, and harsh environments.

公开(公告)号：US10359350B1

公开(公告)日：2019-07-23

申请号：US15878117

申请日：2018-01-23

申请人： Hai Lin ,  Gregor Arthur Waldherr

发明人： Hai Lin ,  Gregor Arthur Waldherr

IPC分类号： G01N21/00 ,  G01N15/02 ,  G01N15/00 ,  G01N15/14 ,  G01N21/53

摘要： Disclosed herein is a novel optical particle characterization system and method of use that can be applied to harsh environments. By separating the sensing components from the electronics unit and using optical fibers for interconnection, only the sensing components need to endure harsh environmental conditions. This reduces the design constraints on the electronics unit and permits the incorporation of optical components into the sensing probe that can withstand high-temperature and high-pressure environments.

公开(公告)号：US08709578B2

公开(公告)日：2014-04-29

申请号：US12934868

申请日：2008-09-09

申请人： Qisheng Zhang ,  Shenxue Jiang ,  Hai Lin ,  Xufeng Xu ,  Hongzheng Liu ,  Bin Xu ,  Wen He

发明人： Qisheng Zhang ,  Shenxue Jiang ,  Hai Lin ,  Xufeng Xu ,  Hongzheng Liu ,  Bin Xu ,  Wen He

IPC分类号： B27J7/00 ,  B32B3/24 ,  B32B38/04 ,  B27N3/08 ,  B32B21/08

CPC分类号： B27N3/04 ,  Y10T156/1056 ,  Y10T156/1062 ,  Y10T156/1064 ,  Y10T428/24314 ,  Y10T428/24322 ,  Y10T428/31978 ,  Y10T428/31982

摘要： A bamboo scrimber includes a plurality of pressure-pressed bamboo strips impregnated with an adhesive and modified through heat-treatment. Each of the bamboo strips is formed with a plurality of slots penetrating through the bamboo strip substantially in a direction of thickness defined by the bamboo strip. A substantially longitudinal direction defined by the slots is substantially consistent with a substantially longitudinal direction defined by fibers of the bamboo strip.

摘要翻译： 一种竹制切割机包括多个用粘合剂浸渍并通过热处理改性的压制竹条。 每个竹条形成有多个槽，其大致沿着竹条限定的厚度的方向贯穿竹条。 由狭缝限定的基本上纵向方向基本上与由竹条的纤维限定的基本纵向方向一致。

公开(公告)号：US20120052761A1

公开(公告)日：2012-03-01

申请号：US13265964

申请日：2011-03-16

申请人： Hai Lin ,  Takehiro Zukawa ,  Eiji Takeda ,  Tasuku Ishibashi ,  Kyohei Yoshino ,  Kazuya Nomoto ,  Takuji Tsujita

发明人： Hai Lin ,  Takehiro Zukawa ,  Eiji Takeda ,  Tasuku Ishibashi ,  Kyohei Yoshino ,  Kazuya Nomoto ,  Takuji Tsujita

IPC分类号： H01J9/20

CPC分类号： H01J9/02 ,  H01J11/12 ,  H01J11/40

摘要： A method for producing a plasma display panel including a base layer containing a metal oxide, and aggregated particles dispersed on the base layer includes the following process. A protective layer is formed on a dielectric layer. Then, a surface of the protective layer is sputtered. In addition, concentration ratios of a first metal oxide and a second metal oxide in the surface of the protective layer are changed by re-depositing a component of the sputtered protective layer.

摘要翻译： 一种包括含有金属氧化物的基底层和分散在基底层上的凝集颗粒的等离子体显示面板的制造方法包括以下工序。 在电介质层上形成保护层。 然后，保护层的表面被溅射。 此外，通过重新沉积溅射保护层的成分来改变保护层表面中的第一金属氧化物和第二金属氧化物的浓度比。

公开(公告)号：US08076851B2

公开(公告)日：2011-12-13

申请号：US12662768

申请日：2010-05-03

申请人： Taro Naoi ,  Hai Lin ,  Eishiro Otani ,  Hiroshi Ito

发明人： Taro Naoi ,  Hai Lin ,  Eishiro Otani ,  Hiroshi Ito

IPC分类号： H01J17/49 ,  G09G3/10

CPC分类号： H01J9/02 ,  H01J11/12 ,  H01J11/40 ,  Y10T428/24372

摘要： A plasma display panel including a front substrate and a back substrate facing each other across a discharge space, and a plurality of row electrode pairs and a plurality of column electrodes extending in a direction orthogonal to the row electrodes. The row electrodes and said column electrodes being provided between the front substrate and the back substrate and forming unit light emission areas at intersections with each other within the discharge space. A crystal having a volumetric particle-size distribution in which a ratio of a crystal having a particle size of 0.7 μm or less is 25% or less, is provided in an area facing the discharge space between the front substrate and the back substrate.

摘要翻译： 一种等离子体显示面板，包括：前面基板和背面基板，横跨放电空间;以及多个行电极对和多个沿与行电极正交的方向延伸的列电极。 行电极和列电极设置在前基板和后基板之间，并且在放电空间内彼此相交处形成单元发光区域。 在面向前基板和后基板之间的放电空间的区域中设置有具有粒径为0.7μm以下的晶体的比例为25％以下的体积粒径分布的晶体。