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1. 发明申请

US20140126567A1 DISTRIBUTED CO-OPERATING NODES USING TIME REVERSAL 有权
标题翻译：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
申请人： Anis Husain , Jeremy Rode , David Smith , Mark Hsu , Maha Achour
发明人： Anis Husain , Jeremy Rode , David Smith , Mark Hsu , Maha Achour
IPC分类号： H04W56/00 , H04W84/18
CPC分类号： H04W56/0065 , H04B7/024 , H04J3/0638 , H04J3/0682 , H04W56/001 , H04W56/0015 , H04W56/0025 , 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

2. 发明授权

US09201132B2 Anti-Geolocation 有权
标题翻译：反地理位置
公开(公告)号：US09201132B2
公开(公告)日：2015-12-01
申请号：US13462514
申请日：2012-05-02
申请人： Mark Hsu , David Smith , Jeremy Rode , Anis Husain , Maha Achour
发明人： Mark Hsu , David Smith , Jeremy Rode , Anis Husain , Maha Achour
IPC分类号： G01S1/72 , G01S7/481 , H04B7/04
CPC分类号： G01S7/282 , G01S1/725 , G01S7/4814 , H04B7/0413
摘要： Methods, apparatus, and articles of manufacture make Geolocation of a source transmitter more difficult or impossible. Scatterers common to a source transmitter and an intended receiver are identified using a variety of techniques, such as iterative time reversal (ITR) and Singular Value Decomposition (SVD) of a scatter matrix. The source transmitter then uses time reversal and knowledge of the signatures of the scatterers to focus its transmissions on one or more of the scatterers, instead of the intended receiver. The source transmitter may have multiple antennas or antenna elements. The source transmitter and/or the intended receiver may include antenna elements with Near-Field Scatterers to enable spatial focusing below the diffraction limit at the frequencies of interest. The source transmitter may be a plurality of ad hoc nodes cooperating with each other.
摘要翻译：方法，装置和制品使得源发射器的地理定位更加困难或不可能。使用各种技术来识别源发射机和预期接收机共同的散射体，例如散射矩阵的迭代时间反演（ITR）和奇异值分解（SVD）。然后，源发射机使用时间反转和散射体的签名的知识来将其传输聚焦在一个或多个散射体上，而不是预期的接收器。源发射机可以具有多个天线或天线元件。源发射机和/或预期接收机可以包括具有近场散射体的天线元件，以使得在感兴趣的频率处的衍射极限以下的空间聚焦。源发射机可以是彼此协作的多个自组织节点。

3. 发明申请

US20120328037A1 ANTI-GEOLOCATION 有权
标题翻译：反地理
公开(公告)号：US20120328037A1
公开(公告)日：2012-12-27
申请号：US13462514
申请日：2012-05-02
申请人： Mark Hsu , David Smith , Jeremy Rode , Anis Husain , Maha Achour
发明人： Mark Hsu , David Smith , Jeremy Rode , Anis Husain , Maha Achour
IPC分类号： H04L9/00 , H04B7/02
CPC分类号： G01S7/282 , G01S1/725 , G01S7/4814 , H04B7/0413
摘要： Methods, apparatus, and articles of manufacture make Geolocation of a source transmitter more difficult or impossible. Scatterers common to a source transmitter and an intended receiver are identified using a variety of techniques, such as iterative time reversal (ITR) and Singular Value Decomposition (SVD) of a scatter matrix. The source transmitter then uses time reversal and knowledge of the signatures of the scatterers to focus its transmissions on one or more of the scatterers, instead of the intended receiver. The source transmitter may have multiple antennas or antenna elements. The source transmitter and/or the intended receiver may include antenna elements with Near-Field Scatterers to enable spatial focusing below the diffraction limit at the frequencies of interest. The source transmitter may be a plurality of ad hoc nodes cooperating with each other.
摘要翻译：方法，装置和制品使得源发射器的地理定位更加困难或不可能。使用各种技术来识别源发射机和预期接收机共同的散射体，例如散射矩阵的迭代时间反演（ITR）和奇异值分解（SVD）。然后，源发射机使用时间反转和散射体的签名的知识来将其传输聚焦在一个或多个散射体上，而不是预期的接收器。源发射机可以具有多个天线或天线元件。源发射机和/或预期接收机可以包括具有近场散射体的天线元件，以使得在感兴趣的频率处的衍射极限以下的空间聚焦。源发射机可以是彼此协作的多个自组织节点。

4. 发明授权

US09497722B2 Distributed co-operating nodes using time reversal 有权
标题翻译：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
申请人： Anis Husain , Jeremy Rode , David Smith , Mark Hsu , Maha Achour
发明人： Anis Husain , Jeremy Rode , David Smith , Mark Hsu , Maha Achour
IPC分类号： H04W56/00 , H04W84/18 , H04B7/02 , H04J3/06
CPC分类号： H04W56/0065 , H04B7/024 , H04J3/0638 , H04J3/0682 , H04W56/001 , H04W56/0015 , H04W56/0025 , 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。

5. 发明申请

US20120263056A1 APPARATUS, METHODS, AND ARTICLES OF MANUFACTURE FOR WIRELESS COMMUNICATIONS 审中-公开
标题翻译：装置，方法和无线通信制造文章
公开(公告)号：US20120263056A1
公开(公告)日：2012-10-18
申请号：US13440796
申请日：2012-04-05
申请人： David Smith , Jeremy Rode , Anis Husain , Maha Achour
发明人： David Smith , Jeremy Rode , Anis Husain , Maha Achour
IPC分类号： H04W24/00 , H01Q21/28 , H04B7/08 , H04B5/00 , H04L5/00
CPC分类号： H01Q1/523 , H01Q21/28 , H04B7/06 , H04B7/08 , H04L25/0208 , H04L25/0228
摘要： Selected embodiments are directed to methods, apparatus, and articles of manufacture for wireless radio frequency communications. Adjacent antenna array elements of a receiver antenna array are separated by less than the diffraction limit of the radio frequency communication band in which the apparatus and methods operate. A plurality or multiplicity of near-field scatterers are asymmetrically placed in the immediate vicinity of each of the antenna array elements, to perturb the pattern of each of the antenna elements, making the patterns different even below diffraction limit spacing. A transmitter spatially and temporally focuses simultaneous transmissions on each of the antenna array elements, using time reversal communication techniques. The transmitter may transmit through multiple antenna elements, and the channel from the transmitter to the receiver may be subject to multipath phenomena.
摘要翻译：所选实施例涉及用于无线射频通信的方法，装置和制品。接收机天线阵列的相邻天线阵列元件的距离小于设备和方法操作的射频通信频带的衍射极限。多个或多个近场散射体不对称地放置在每个天线阵列元件的紧邻附近，以扰乱每个天线元件的图案，使得图案甚至不超过衍射极限间隔。使用时间反转通信技术，发射机在空间和时间上对每个天线阵列元件上的同时传输进行聚焦。发射机可以通过多个天线元件发射，并且从发射机到接收机的信道可能遭受多径现象。

6. 发明授权

US11849666B2 Mower blade bracket apparatus 有权
公开(公告)号：US11849666B2
公开(公告)日：2023-12-26
申请号：US17032131
申请日：2020-09-25
申请人： David Smith
发明人： David Smith
IPC分类号： A01D34/00 , A01D101/00 , A01D34/73
CPC分类号： A01D34/001 , A01D34/733 , A01D2101/00
摘要： A mower blade bracket apparatus for safely changing mower blades includes a bracket body comprising a first half adjustably coupled to a second half to adjust for a distance between a first distal end and a second distal end. The first distal end and the second distal end have a first mounting aperture and a second mounting aperture extending therethrough, respectively. A pair of mounting bolts is coupled to the bracket body. The pair of mounting bolts is engaged with the first mounting aperture and the second mounting aperture to selectively engage a skirt of a lawn mower. A blade sleeve is coupled to the bracket body. The blade sleeve slidingly receives a blade of the lawn mower.

7. 发明公开

US20230320925A1 METHODS AND DEVICES FOR MANIPULATING THE GLYMPHATIC SYSTEM FOR MEDICAL TREATMENTS 审中-公开
公开(公告)号：US20230320925A1
公开(公告)日：2023-10-12
申请号：US18297067
申请日：2023-04-07
申请人： David Smith
发明人： David Smith
IPC分类号： A61H9/00 , A61M16/00 , A61M16/06
CPC分类号： A61H9/0092 , A61M16/0045 , A61M16/0683 , A61H9/0007 , A61H2201/107 , A61H2205/04 , A61H2201/1609 , A61H2201/165 , A61H2201/1676 , A61H2201/1246 , A61H2201/1215
摘要： Methods and devices are provided for manipulating the glymphatic system to improve cognitive and other cranial or brain functions of a subject. In particular, pressure is alternately applied to the jugular veins on either side of the subject's neck to generate a to and fro movement of cranial fluids.

8. 发明授权

US11286185B1 System and method of scum collection in wastewater treatment systems 有权
公开(公告)号：US11286185B1
公开(公告)日：2022-03-29
申请号：US17096005
申请日：2020-11-12
申请人： Terence K. Reid , David Smith
发明人： Terence K. Reid , David Smith
IPC分类号： C02F3/12 , B01D21/24 , B01D21/00 , C02F1/00
摘要： System and method of scum collection and removal in batch biological wastewater treatment systems.

9. 发明授权

US10004515B2 Methods and devices to reduce damaging effects of concussive or blast forces on a subject 有权
公开(公告)号：US10004515B2
公开(公告)日：2018-06-26
申请号：US13489536
申请日：2012-06-06
申请人： David Smith , Joseph A. Fisher
发明人： David Smith , Joseph A. Fisher
IPC分类号： A61B17/00 , A61B17/132 , A61B17/135 , A61F5/30 , A61B90/00
CPC分类号： A61B17/1325 , A61B17/135 , A61B17/1355 , A61B90/08 , A61B2017/00119 , A61B2017/00734 , A61B2090/0807 , A61F5/30
摘要： A method and device for reducing the damaging effects of a blast or concussive event includes applying pressure to at least one jugular vein to reduce the egress of blood from the cranial cavity during the incidence of the concussive event. Reducing blood out flow from the cranial cavity increases intracranial pressure of the cerebrospinal fluid to reduce the risk of traumatic brain injury and injuries to the spinal column. Reducing blood out flow further increases the intracranial pressure, and thereby increases the pressure of the cochlear fluid, the vitreous humor and the cerebrospinal fluid to thereby reduce the risk of injury to the inner ear, internal structure of the eye and of the spinal column. In addition, increasing intracranial pressure reduces the likelihood of brain injury and any associated loss of olfactory function.

10. 发明授权

US09843191B2 Power converter for executing anti-islanding procedures upon detecting an islanding condition 有权
公开(公告)号：US09843191B2
公开(公告)日：2017-12-12
申请号：US13247424
申请日：2011-09-28
申请人： David Smith , Maozhong Gong
发明人： David Smith , Maozhong Gong
IPC分类号： H02J3/38
CPC分类号： H02J3/383 , H02J2003/388 , Y02E10/563 , Y10T307/50
摘要： A power converter including a detection apparatus and method for detecting an islanding condition based on measurements of one or more currents and voltages within the power converter provided to a current regulator to generate a signal that is provided in a positive feedback loop and is indicative of an islanding condition.

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