Maximum-likelihood MIMO demodulation for frequency-selective channels
    61.
    发明授权
    Maximum-likelihood MIMO demodulation for frequency-selective channels 有权
    频率选择信道的最大似然MIMO解调

    公开(公告)号:US08705647B2

    公开(公告)日:2014-04-22

    申请号:US13087943

    申请日:2011-04-15

    Applicant: Xiao-an Wang

    Inventor: Xiao-an Wang

    Abstract: A method is described that enables maximum-likelihood (ML) demodulation for MIMO communications over frequency-selective channels. An equalizer is typically employed to suppress inter-symbol interference (ISI) due to frequency-selectiveness of the channel, but the noise of the equalizer output can be highly correlated such that standard ML-MIMO demodulations cannot directly apply. The method comprises first constructing equivalent post-equalization MIMO channel and noise covariance matrix, and then de-correlating the equalizer output so that ML or near-ML MIMO demodulations can be applied to improve the performance. Additionally, successive ISI cancellation (SIC) is described for further performance improvement.

    Abstract translation: 描述了一种能够通过频率选择信道进行MIMO通信的最大似然(ML)解调的方法。 通常采用均衡器来抑制由于信道的频率选择性引起的符号间干扰(ISI),但是均衡器输出的噪声可以高度相关,使得标准ML-MIMO解调不能直接应用。 该方法包括首先构建等效的后均衡MIMO信道和噪声协方差矩阵,然后将均衡器输出去相关,使ML或近ML MIMO解调可以应用于提高性能。 另外,为了进一步提高性能,描述了连续的ISI取消(SIC)。

    Capacitive latched bi-stable molecular switch
    62.
    发明授权
    Capacitive latched bi-stable molecular switch 失效
    电容锁存双稳分子开关

    公开(公告)号:US07580239B2

    公开(公告)日:2009-08-25

    申请号:US11478278

    申请日:2006-06-29

    CPC classification number: H01G7/023

    Abstract: A charge storage cell is made up of two electrodes spaced apart by a dielectric layer incorporating a molecular switch. A method of operating a bi-stable, molecular switch charge storage cell encompassing two electrodes spaced apart by a dielectric layer incorporating a molecular switch having an electric dipole is also disclosed. The method involves applying a voltage across said dielectric layer to induce opposing charges on said electrodes that create an electric field across said dielectric layer, wherein molecular dipoles within said dielectric layer align or change in response to said electric field, creating an opposing electric field and a change in state of said molecular switch from a first state to a second state; and applying a voltage of reverse polarity across said dielectric aver to change said state of said molecular switch from said second state to said first state.

    Abstract translation: 电荷存储单元由两个电极组成,两个电极由并入有分子开关的电介质层隔开。 还公开了一种操作双稳态分子开关电荷存储单元的方法,所述双稳态分子开关电荷存储单元包含由掺有具有电偶极子的分子开关的电介质层隔开的两个电极。 所述方法包括在所述电介质层上施加电压以在所述电极上产生相反的电荷,所述电荷在所述电介质层上产生电场,其中所述电介质层内的分子偶极子响应于所述电场对准或改变,产生相对的电场, 所述分子开关从第一状态到第二状态的状态变化; 并且在所述介电平均值上施加相反极性的电压以将所述分子开关的所述状态从所述第二状态改变到所述第一状态。

    Fingerprint capture
    63.
    发明授权
    Fingerprint capture 有权
    指纹捕获

    公开(公告)号:US07496216B2

    公开(公告)日:2009-02-24

    申请号:US11157649

    申请日:2005-06-21

    CPC classification number: G06K9/0002

    Abstract: A system and method of capturing a skin print from skin having ridges and valleys. A skin print sensor having a return/supply contact and a plurality of contact pads is provided. A finger is applied to the skin print sensor and data is stored representative of contact pads in contact with skin ridges.

    Abstract translation: 从具有脊和谷的皮肤捕获皮肤印迹的系统和方法。 提供具有返回/供给触点和多个接触垫的皮肤印刷传感器。 将手指施加到皮肤印刷传感器,并且存储代表与皮肤脊接触的接触垫的数据。

    E-field polarized materials
    64.
    发明授权
    E-field polarized materials 有权
    电场极化材料

    公开(公告)号:US07345302B2

    公开(公告)日:2008-03-18

    申请号:US10945756

    申请日:2004-09-21

    Abstract: The invention described herein includes a molecular switch, comprising: a donor subunit; an acceptor subunit; and an aromatic bridging subunit comprising one or more bridging groups for bonding the donor subunit to the aromatic bridging subunit and for bonding the acceptor subunit to the aromatic bridging subunit wherein the aromatic bridging subunit is conformable in a manner effective for polarizing and de-polarizing the molecular switch at a low electric field voltage.

    Abstract translation: 本文描述的发明包括分子开关,包括:供体亚单位; 受体亚单位 以及芳族桥连亚单元,其包含一个或多个用于将供体亚基键合到芳族桥连亚单位的桥连基团和用于将受体亚基结合到芳族桥连亚单元上,其中芳族桥连亚单位以有效用于偏振和去极化的方式 分子开关处于低电场电压。

    Bistable molecular mechanical devices activated by an electric field for electronic ink and other visual display applications
    67.
    发明授权
    Bistable molecular mechanical devices activated by an electric field for electronic ink and other visual display applications 失效
    双电阻分子机械装置由电场激活用于电子墨水等视觉显示应用

    公开(公告)号:US06947205B2

    公开(公告)日:2005-09-20

    申请号:US09898799

    申请日:2001-07-03

    Abstract: An electric field activated bi-stable molecular system configured within an electric field generated by a pair of electrodes is provided for use, e.g., as electronic ink or other visual displays. The molecular system has at least one rotor portion connected to at least one stator portion, wherein the rotor portion rotates with respect to the stator portion between at least two different states upon application of the electric field, thereby inducing a band gap change in the molecular system, wherein in a first state, there is extended conjugation throughout the major portion of the molecular system, resulting in a relatively smaller band gap, and wherein in a second state, the extended conjugation is destroyed, resulting in a relatively larger band gap. A primary advantage of the molecular system is improved contrast. Because the colorant of the present invention is molecular and thus effectively monoplanar, there should be no backside reflection or scattering from the colorant. A second advantage of the present invention is improved resolution. Finally, each molecule of the present invention will latch to stabilize one or the other of its color states.

    Abstract translation: 提供了由一对电极产生的电场内配置的电场激活的双稳态分子系统,例如用作电子墨水或其它视觉显示器。 分子系统具有连接至少一个定子部分的至少一个转子部分,其中转子部分在施加电场时在至少两个不同状态之间相对于定子部分旋转,由此引起分子中的带隙变化 系统,其中在第一状态下,在分子系统的整个主要部分存在延伸的共轭,导致相对较小的带隙,并且其中在第二状态下,扩展的共轭被破坏,导致相对较大的带隙。 分子系统的主要优点是对比度提高。 因为本发明的着色剂是分子且因此有效地是单面的,所以不应该有着色剂的背面反射或散射。 本发明的第二个优点是分辨率提高。 最后,本发明的每个分子将锁定以稳定其一个或多个其颜色状态。

    Bottom electrode chemically-bonded Langmuir-Blodgett films via photolabile groups
    68.
    发明申请
    Bottom electrode chemically-bonded Langmuir-Blodgett films via photolabile groups 失效
    底部电极通过光不稳定组化学键合Langmuir-Blodgett薄膜

    公开(公告)号:US20050194526A1

    公开(公告)日:2005-09-08

    申请号:US10792961

    申请日:2004-03-02

    Abstract: Langmuir-Blodgett films are provided in which a molecule is chemically bonded with a bottom electrode substrate as part of a crossed wire device comprising two electrodes and a molecular layer therebetween. The molecule, which comprises a switchable moiety and a connecting moiety, is provided with a photolabile capping group attached to the connecting moiety. The photolabile capping group temporarily caps the reactive connecting group of the molecule. The capped molecules are processed to form a LB film on the water-air interface of water. The films are then exposed to UV light. The photolabile capping group decomposes to give back the connecting group, which remains in the water. As the uncapped LB films are transferred to a bottom electrode substrate, the surface of the electrode reacts with the reactive connecting group of the molecule to form a chemically bonded LB layer on the substrate, thereby providing improved LB films.

    Abstract translation: 提供Langmuir-Blodgett膜,其中分子与底部电极基底化学键合,作为包括两个电极和其间的分子层的交叉线器件的一部分。 包含可切换部分和连接部分的分子具有连接到连接部分上的光不透明封端基团。 光敏封端组暂时封闭分子的反应性连接基团。 加热封端的分子在水的水 - 空气界面上形成LB膜。 然后将膜暴露于UV光。 光不稳定封盖组分解,使回流在水中的连接组。 由于未封装的LB膜转移到底部电极基板,电极的表面与分子的反应性连接基团反应,以在基板上形成化学键合的LB层,从而提供改进的LB膜。

    Method and apparatus related to informative data associated with graphical image data

    公开(公告)号:US20050012771A1

    公开(公告)日:2005-01-20

    申请号:US10621223

    申请日:2003-07-16

    CPC classification number: B41J11/008 B41J3/01

    Abstract: Methods and apparatus for packing, including single pixel data strings, and playback tracking of informative data, e.g., audio signals, associated with graphics. To maximize the signal-to-noise ratio during data recovery, a Read sensor is kept substantially on-center of each data block throughout reading. A Print-and-Read ink-jet embodiment carriage mechanism in conjunction with the paper feed mechanism keeps the Read sensor on track center as misalignment information has been determined beforehand or in real time for active track servoing. Additional functionalities are incorporated in scanning ink-jet class of printers so that they can further operate as informative data recovery or retrieval systems for digitized data on graphical data images. In another embodiment, a digital camera itself is provided with additional functionalities to operate as a recovery and playback device for prints containing informative data.

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