Distributed co-operating nodes using time reversal
    2.
    发明授权
    Distributed co-operating nodes using time reversal 有权
    分布式合作节点使用时间反转

    公开(公告)号:US09497722B2

    公开(公告)日:2016-11-15

    申请号:US14114901

    申请日:2012-05-02

    摘要: Methods and systems for coherent distributed communication techniques using time reversal are disclosed. In one aspect, cooperating nodes of a cluster can move relative to each other and relative to an intended receiver of the nodes' data transmissions. The nodes are synchronized to a common time reference, and data for transmission from the cluster is distributed to the nodes. The intended receiver sends a sounding signal to the nodes. Each node receives the sounding signal, obtains the channel response between the intended receiver and itself, and time-reverses the channel response. Each node then convolves its time-reversed channel response with the data to obtain the node's convolved data. Each node waits a predetermined time following the time reference signal, as determined based on the common time reference. At the expiration of the predetermined time period, the nodes simultaneously transmit their convolved data.

    摘要翻译: 公开了使用时间反转的相干分布式通信技术的方法和系统。 在一个方面,集群的协作节点可以相对于彼此并相对于节点的数据传输的预期接收器移动。 节点被同步到公共时间参考,并且用于从集群传输的数据被分发到节点。 预期的接收器向节点发送一个探测信号。 每个节点接收探测信号,获得目标接收机与其本身之间的信道响应,并对信道响应进行时间反向。 然后每个节点将其时间反转的信道响应与数据进行卷积,以获得节点的卷积数据。 每个节点等待基于公共时间基准确定的时间参考信号之后的预定时间。 在预定时间段到期时,节点同时发送它们的卷积数据。

    Micromachined optomechanical switches
    4.
    发明授权
    Micromachined optomechanical switches 失效
    微加工光机械开关

    公开(公告)号:US06498870B1

    公开(公告)日:2002-12-24

    申请号:US09063644

    申请日:1998-04-20

    IPC分类号: G02B626

    摘要: A micromachined plate 11, called a torsion plate, selectively pivots upon a substrate responsively to electrical force so as to move an attached micromirror 12 in a same plane; thereby to accurately selectively intercept, and to reflect, a light beam 2 that is moving parallel to the substrate; forming thus an optomechanical switch 1. The electrical force may be electromagnetic 3 in nature or, preferably, electrostatic. In various embodiments the pivoting torsion plate 11 with the micromirror 12 affixed may be (i) biased off the substrate by a three-dimensional structure 14 and/or by a “reshaped” torsion beam 11c, (ii) bent as plate 11d, and operated push OR pull, push AND pull, or push AND push, in a rocking operation, (iii) elevated above the substrate upon a self-assembling “micro-elevator structure” 16, and/or (iv) moved greatly in angular position by action of a “micro-flap” 11f. A new design spring-loaded landing electrode 18, and a torsion microhinge 131-134, further enhance performance. The micromachined, or Micro Electro Mechanical Systems (MEMS), optomechanical switch 1 so formed is both fast and accurate to switch light over large angles up to 180° while being highly resistant to sticking, or “stiction”.

    摘要翻译: 称为扭板的微加工板11选择性地响应于电力而在基板上枢轴转动,以将附接的微镜12移动到同一平面内; 从而准确地选择性地截取和反射平行于基板移动的光束2; 形成光机械开关1.电力本质上可以是电磁3,或者优选静电。 在各种实施例中,具有固定微镜12的枢转扭转板11可以(i)通过三维结构14和/或通过“重新成形”的扭转梁11c偏离衬底,(ii)弯曲成板11d,以及 (iii)在自组装“微电梯结构”16上升高到基板上方,和/或(iv)在角度位置大大地移动 通过“微瓣”11f的作用。 新的设计弹簧着陆电极18和扭转微型加热器131-134进一步增强了性能。 微机械或微电子机械系统(MEMS),如此形成的光学机械开关1既快速又准确,可以在大角度切换180°,同时高度抵抗粘附或“粘性”。

    DISTRIBUTED CO-OPERATING NODES USING TIME REVERSAL
    5.
    发明申请
    DISTRIBUTED CO-OPERATING NODES USING TIME REVERSAL 有权
    使用时间反转的分销合作伙伴

    公开(公告)号:US20140126567A1

    公开(公告)日:2014-05-08

    申请号:US14114901

    申请日:2012-05-02

    IPC分类号: H04W56/00 H04W84/18

    摘要: Methods and systems for coherent distributed communication techniques using time reversal are disclosed. In one aspect, cooperating nodes of a cluster can move relative to each other and relative to an intended receiver of the nodes' data transmissions. The nodes are synchronized to a common time reference, and data for transmission from the cluster is distributed to the nodes. The intended receiver sends a sounding signal to the nodes. Each node receives the sounding signal, obtains the channel response between the intended receiver and itself, and time-reverses the channel response. Each node then convolves its time-reversed channel response with the data to obtain the node's convolved data Each node waits a predetermined time following the time reference signal, as determined based on the common time reference. At the expiration of the predetermined time period, the nodes simultaneously transmit their convolved data

    摘要翻译: 公开了使用时间反转的相干分布式通信技术的方法和系统。 在一个方面,集群的协作节点可以相对于彼此并相对于节点的数据传输的预期接收器移动。 节点被同步到公共时间参考,并且用于从集群传输的数据被分发到节点。 预期的接收器向节点发送一个探测信号。 每个节点接收探测信号,获得目标接收机与其本身之间的信道响应,并对信道响应进行时间反向。 然后,每个节点将其时间反转的信道响应与数据进行卷积,以获得节点的卷积数据。每个节点等待基于公共时间参考确定的时间参考信号之后的预定时间。 在预定时间段到期时,节点同时发送它们的卷积数据

    Polarization switching and control in vertical cavity surface emitting lasers
    6.
    发明授权
    Polarization switching and control in vertical cavity surface emitting lasers 有权
    垂直腔表面发射激光器的极化切换和控制

    公开(公告)号:US07356064B2

    公开(公告)日:2008-04-08

    申请号:US11386220

    申请日:2006-03-21

    摘要: A fast current-controlled polarization switching VCSEL with two independent intra-cavity p-contact electrodes and two independent intra-cavity n-contact electrodes positioned along the four sides of the symmetric aperture such that there are two independent p- and n-contact pairs placed on opposite sides of the aperture in a non-overlapping configuration. The anisotropy resulting from the unidirectional current flow causes the light output to be polarized perpendicular to the direction of current flow. A VCSEL driver circuit switches the polarization state of the output light by using the two orthogonal pairs of non-overlapping intra-cavity contacted electrodes to change the direction of current flow into the VCSEL aperture by 90 degrees.

    摘要翻译: 具有两个独立的腔内p接触电极和两个独立的腔内n接触电极的快速电流控制偏振切换VCSEL,沿着对称孔的四个侧面定位,使得存在两个独立的p-和n-接触对 以不重叠的配置放置在孔的相对侧上。 由单向电流引起的各向异性导致光输出垂直于电流方向偏振。 VCSEL驱动电路通过使用两个非重叠腔内接触电极的正交对来切换输出光的偏振状态,以改变流入VCSEL孔径的电流的方向90度。

    Micromachined optomechanical switches
    7.
    发明授权
    Micromachined optomechanical switches 失效
    微加工光机械开关

    公开(公告)号:US06526198B1

    公开(公告)日:2003-02-25

    申请号:US10053399

    申请日:2002-01-17

    IPC分类号: G02B626

    摘要: In at least one embodiment, a MEMS optomechanical switch in accordance with the present invention includes a substrate, a signal source capable of transmitting a radiation signal, an electrode coupled to the substrate, and a micromachined plate rotatably coupled to the substrate about a pivot axis. The switch further includes a micromirror having an orientated reflective surface, mounted to the micromachined plate and an electrical source coupled to at least one of the electrode and the micromachined plate.

    摘要翻译: 在至少一个实施例中,根据本发明的MEMS光机械开关包括衬底,能够传输辐射信号的信号源,耦合到衬底的电极和可旋转地联接到衬底的微机械板,围绕枢转轴线 。 开关还包括具有取向的反射表面的微镜,其安装到微加工板上,以及耦合到电极和微加工板中的至少一个的电源。

    Optomechanical matrix switches including collimator arrays
    8.
    发明授权
    Optomechanical matrix switches including collimator arrays 失效
    机械矩阵开关包括准直器阵列

    公开(公告)号:US06445841B1

    公开(公告)日:2002-09-03

    申请号:US09483275

    申请日:2000-01-13

    IPC分类号: G02B635

    摘要: Various configurations of optomechanical matrix and broadcast switches are disclosed herein. One such optomechanical matrix switch includes a substrate and a plurality of optomechanical switching cells coupled thereto. Each of the optomechanical switching cells includes a mirror and an actuator. The matrix switch further includes an array of collimator elements, each of the collimator elements being in optical alignment with one of the optomechanical switching cells. Also disclosed herein is a distributed matrix switch including first and second optomechanical matrix switches. The first and second optomechanical matrix switches respectively include first and second pluralities of optomechanical switching cells mounted upon first and second substrates. A collimator array is interposed between the first and second matrix switches in optical alignment with the first and second pluralities of optomechanical switching cells.

    摘要翻译: 本文公开了机电矩阵和广播交换机的各种配置。 一种这样的光机械矩阵开关包括衬底和耦合到其上的多个光机械转换单元。 每个光机械切换单元包括反射镜和致动器。 矩阵开关还包括准直器元件阵列,准直器元件中的每一个与光学机械转换单元之一光学对准。 这里还公开了包括第一和第二光机械矩阵开关的分布式矩阵开关。 第一和第二视光机械矩阵开关分别包括安装在第一和第二基板上的第一和第二多个光学机械转换单元。 在与第一和第二多个光学机械开关单元光学对准的第一和第二矩阵开关之间插入准直器阵列。

    TECHNIQUES AND SYSTEMS FOR PROVIDING DATA OVER POWER IN COMMUNICATIONS BASED ON TIME REVERSAL
    9.
    发明申请
    TECHNIQUES AND SYSTEMS FOR PROVIDING DATA OVER POWER IN COMMUNICATIONS BASED ON TIME REVERSAL 有权
    基于时间反转提供通信数据的技术和系统

    公开(公告)号:US20120155515A1

    公开(公告)日:2012-06-21

    申请号:US13142250

    申请日:2010-09-03

    IPC分类号: H04W88/08

    摘要: Techniques, apparatuses and systems for providing communications based on time reversal of a channel impulse response of a pulse in a transmission channel between a transmitter and a receiver to enhance reception and detection of a pulse at the receiver against various effects that can adversely affect and complicate the reception and detection of the pulse at the receiver.

    摘要翻译: 用于基于在发射机和接收机之间的传输信道中的脉冲的信道脉冲响应的时间反转来提供通信的技术,装置和系统,以增强在接收机处的接收和检测脉冲,以防止可能不利地影响和复杂的各种效应 在接收器处接收和检测脉冲。

    TECHNIQUES AND SYSTEMS FOR COMMUNICATIONS BASED ON TIME REVERSAL PRE-CODING
    10.
    发明申请
    TECHNIQUES AND SYSTEMS FOR COMMUNICATIONS BASED ON TIME REVERSAL PRE-CODING 有权
    基于时间反向预编码的通信技术和系统

    公开(公告)号:US20110286508A1

    公开(公告)日:2011-11-24

    申请号:US13142236

    申请日:2010-09-03

    IPC分类号: H04B17/00

    摘要: Techniques, apparatuses and systems for providing communications based on time reversal of a channel impulse response of a pulse in a transmission channel between a transmitter and a receiver to enhance reception and detection of a pulse at the receiver against various effects that can adversely affect and complicate the reception and detection of the pulse at the receiver.

    摘要翻译: 用于基于在发射机和接收机之间的传输信道中的脉冲的信道脉冲响应的时间反转来提供通信的技术,装置和系统,以增强在接收机处的接收和检测脉冲,以防止可能不利地影响和复杂的各种效应 在接收器处接收和检测脉冲。