Reducing equalizer error propagation with a low complexity soft output viterbi decoder
    5.
    发明授权
    Reducing equalizer error propagation with a low complexity soft output viterbi decoder 失效
    降低均衡器误差传播与低复杂度软输出维特比解码器

    公开(公告)号:US08194800B2

    公开(公告)日:2012-06-05

    申请号:US12758670

    申请日:2010-04-12

    申请人: Jin Hong Kim

    发明人: Jin Hong Kim

    IPC分类号: H04L27/06 H04M13/03

    摘要: Novel systems and methods are described in which performance of equalizers can be improved by reducing the effects of error propagation in equalizers that use a Viterbi Decoder. Systems and methods of symbol correction in prediction decision feedback equalization architectures are described including systems and methods that include an enhanced Viterbi decoder and novel methods of symbol correction to obtain better system performance. The use of a blending algorithm is described to reduce errors in symbol decoding. Histories of deep trace back depth symbols can be maintained to enable more accurate decisions. Systems and methods described can provide advantage in the feedback path of adaptive equalizers in trellis decoders. The invention provides novel techniques for improving the performance of equalizers by reducing the effects of error propagation in equalizers that use a Viterbi Decoder.

    摘要翻译: 描述了新颖的系统和方法,其中可以通过减少使用维特比解码器的均衡器中的误差传播的影响来改善均衡器的性能。 描述了预测判决反馈均衡架构中的符号校正的系统和方法,其包括包括增强维特比解码器和符号校正的新颖方法以获得更好的系统性能的系统和方法。 描述使用混合算法来减少符号解码中的错误。 可以维护深回溯深度符号的历史,以实现更准确的决策。 所描述的系统和方法可以在网格解码器中的自适应均衡器的反馈路径中提供优点。 本发明提供了通过减少使用维特比解码器的均衡器中的误差传播的影响来提高均衡器的性能的新技术。

    Developer cartridge, developing device and image forming apparatus
    6.
    发明授权
    Developer cartridge, developing device and image forming apparatus 有权
    显影剂盒,显影装置和图像形成装置

    公开(公告)号:US07751757B2

    公开(公告)日:2010-07-06

    申请号:US12147736

    申请日:2008-06-27

    IPC分类号: G03G15/08

    摘要: A developer cartridge constructed in a structure in which an overload is not applied to stirring units to stir a developer even when the developer is lump includes a housing having a developer storage chamber, a first stirring unit rotatably mounted in the housing, and a second stirring unit rotatably mounted in the housing such that the second stirring unit is rotatable with time delay after a rotation of the first stirring unit. The second stirring unit includes a rotary shaft, and the developer cartridge further includes a rotary member coupled to one end of the rotary shaft and a power transmission member to transmit a rotary force to the rotary member after rotation thereof by a predetermined angle.

    摘要翻译: 一种显影剂盒,其构造为即使在显影剂为块状时也不向搅拌单元施加过载以搅拌显影剂的结构,包括具有显影剂储存室的壳体,可旋转地安装在壳体中的第一搅拌单元和第二搅拌 单元可旋转地安装在壳体中,使得第二搅拌单元可在第一搅拌单元旋转之后随时间延迟地旋转。 第二搅拌单元包括旋转轴,并且显影剂盒还包括联接到旋转轴的一端的旋转构件和用于在旋转构件旋转预定角度之后将旋转力传递到旋转构件的动力传递构件。

    Dual pDFE system with forward-backward viterbi
    7.
    发明授权
    Dual pDFE system with forward-backward viterbi 失效
    双向pDFE系统具有前向后维特比

    公开(公告)号:US07697604B2

    公开(公告)日:2010-04-13

    申请号:US11405352

    申请日:2006-04-17

    IPC分类号: H03K5/159 H03H7/30 H03H7/40

    CPC分类号: H04L25/03057

    摘要: The present invention provides a novel technique for improving the performance of equalizers by reducing the effects of error propagation in equalizers that use a Viterbi Decoder. Methods and systems are described that can improve the performance of equalizers by reducing the effects of error propagation in equalizers that use a Viterbi Decoder. Systems and methods of symbol correction in prediction decision feedback equalization (“pDFE”) architectures are described. Systems are described that include one or more enhanced Viterbi decoders together with novel methods of symbol correction to obtain better system performance. Systems and methods are described that utilize dual pDFEs and can use a blending algorithm to reduce errors in symbol decoding. Dual pDFEs are described that include forward and backward Viterbi decoders wherein the backward Viterbi decoded may operate on time reversed data blocks and with some degree of latency. Forward and backward Viterbi decoders can generate different decoded symbols from the same equalized data. A blending algorithm is described for weighting results based on reliability of the respective decoded symbols. A forward-backward blender can additionally increase performance of the second pDFE by blending long delayed trellis symbols from the first Viterbi decoder with symbols output by the second Viterbi decoder.

    摘要翻译: 本发明提供了一种用于通过减少使用维特比解码器的均衡器中的误差传播的影响来提高均衡器的性能的新型技术。 描述了可以通过减少使用维特比解码器的均衡器中的误差传播的影响来提高均衡器的性能的方法和系统。 描述了预测判决反馈均衡(“pDFE”)架构中的符号校正的系统和方法。 描述了包括一个或多个增强维特比解码器以及符号校正的新颖方法以获得更好的系统性能的系统。 描述了利用双pDFE的系统和方法,并且可以使用混合算法来减少符号解码中的错误。 描述了包括前向和后向维特比解码器的双pDFE,其中解码的后维特比可以在时间反转的数据块上以一定程度的延迟来操作。 前向和后向维特比解码器可以从相同的均衡数据生成不同的解码符号。 描述了基于各个解码符号的可靠性加权结果的混合算法。 通过将来自第一维特比解码器的长延迟网格符号与由第二维特比解码器输出的符号混合,前向后向混合器可另外增加第二pDFE的性能。

    Platinum Based Catalyst for Oxidation/Reduction Reaction and Its Use
    8.
    发明申请
    Platinum Based Catalyst for Oxidation/Reduction Reaction and Its Use 审中-公开
    用于氧化/还原反应的铂基催化剂及其用途

    公开(公告)号:US20080274878A1

    公开(公告)日:2008-11-06

    申请号:US12158279

    申请日:2006-11-29

    IPC分类号: B01J31/30 B01J31/02 B01J31/38

    摘要: Disclosed herein are a platinum-based catalyst for oxidation/reduction reactions and the use thereof. The platinum-based catalyst is prepared by loading a catalyst composition comprising a water-soluble salt of at least one metal selected from among cerium (Ce), zirconium (Zr) and rhenium (Re), on a support comprising at least one selected from among alumina, silica and titania. The disclosed catalyst can be prepared in a simple manner without any particular limitation as to the kind of usable water-soluble platinum salt, and when it is applied to various oxidation reactions, including water gas shift reactions of carbon monoxide, three-way catalytic reactions, and selective oxidation reactions of carbon monoxide, and to reduction reactions, such as reactions of removing nitrogen oxide (NOx), it will show excellent catalytic activity. In particular, the disclosed catalyst shows excellent performance even in a specific temperature range in which it is difficult to apply the prior high-temperature water gas shift reaction catalyst and low-temperature water gas shift reaction catalyst. Also, it can remove carbon monoxide even at high temperatures without the loss of hydrogen caused by methanation, and thus is particularly useful in a hydrogen production process of producing high-purity hydrogen for fuel cells.

    摘要翻译: 本文公开了用于氧化/还原反应的铂基催化剂及其用途。 通过将包含选自铈(Ce),锆(Zr)和铼(Re))的至少一种金属的水溶性盐的催化剂组合物载载在包含至少一种选自以下的至少一种的载体上来制备铂基催化剂: 在氧化铝,二氧化硅和二氧化钛中。 所公开的催化剂可以以简单的方式制备,对于可用的水溶性铂盐的种类没有特别的限制,并且当它被应用于各种氧化反应时,包括一氧化碳的水煤气变换反应,三元催化反应 ,一氧化碳的选择性氧化反应,还原反应如去除氮氧化物(NOx)的反应,将显示出优异的催化活性。 特别地,所公开的催化剂即使在难以应用现有的高温水煤气变换反应催化剂和低温水煤气变换反应催化剂的特定温度范围内也显示出优异的性能。 此外,即使在高温下也可以除去一氧化碳,而不会由甲烷化引起的氢气损失,因此特别适用于生产用于燃料电池的高纯度氢气的氢气制备方法。

    Technologies for measuring thickness of an optical disc
    10.
    发明授权
    Technologies for measuring thickness of an optical disc 有权
    用于测量光盘厚度的技术

    公开(公告)号:US07248372B2

    公开(公告)日:2007-07-24

    申请号:US11519084

    申请日:2006-09-12

    IPC分类号: G01B11/02 G01B11/28

    摘要: The disclosure includes a system, device, apparatus and programmed medium of measuring thickness of an optical disc by using an interference effect of the optical disc layer. Such a system can include: a spectroscope to separate light, reflected from a surface of an optical disc, into constituent frequencies thereof; an optical intensity measuring unit to measure intensities of the constituent frequencies, respectively, as a first spectrum of data; and a processor to do at least the following, convert the first spectrum data into a second spectrum of values that exhibits variation as a function wavelength and refractive index, transform the second spectrum using a Fast Fourier Transform, and detect a thickness of one or more of the spacer layer and the cover layer, respectively, based upon the transformed spectrum. The disclosed technologies have advantages for high precisely measuring thickness of an optical disc.

    摘要翻译: 本公开包括通过使用光盘层的干涉效应测量光盘的厚度的系统,设备,设备和编程介质。 这样的系统可以包括:将从光盘的表面反射的光分离成其组成频率的分光器; 光强度测量单元,分别测量组成频率的强度作为第一数据频谱; 以及处理器至少进行以下操作,将第一光谱数据转换为呈现作为功能波长和折射率的变化的第二频谱,使用快速傅立叶变换来变换第二光谱,并且检测一个或多个 分别基于变换的光谱分离间隔层和覆盖层。 所公开的技术具有用于高精度测量光盘厚度的优点。