公开(公告)号：US08817802B2

公开(公告)日：2014-08-26

申请号：US13436269

申请日：2012-03-30

申请人： Wallace Davis ,  Valentine J. Rhodes ,  Michael Beeler

发明人： Wallace Davis ,  Valentine J. Rhodes ,  Michael Beeler

IPC分类号： H04L29/06 ,  H04B10/118 ,  H04B10/112 ,  H04B7/185

CPC分类号： H04B10/1129 ,  H04B1/74 ,  H04B7/18582 ,  H04B10/118 ,  H04L1/0003 ,  H04L1/0015 ,  Y02D50/10

摘要： A method of hitless switching over a communications link, the method comprising transmitting, by a first modulator to a remote receiver, a first carrier signal having a first center frequency, enabling, by a second modulator to the remote receiver, transmission of a second carrier signal having a second center frequency while the first modulator is transmitting the first carrier signal, increasing, through the second modulator, a power level of the second carrier signal while the first carrier signal is transmitting, simultaneously decreasing, through the first modulator, a power level of the first carrier signal while the power level of the second carrier signal is increasing, and disabling transmission of the first carrier signal to the remote receiver when the power level of the second carrier signal reaches a predetermined level.

摘要翻译： 一种通过通信链路进行无连接切换的方法，所述方法包括由第一调制器向远程接收机发送具有第一中心频率的第一载波信号，由第二调制器向远程接收机发送第二载波的传输 信号具有第二中心频率，而第一调制器正在发送第一载波信号，当第一载波信号正在通过第一调制器同时减小时，通过第二调制器增加第二载波信号的功率电平， 当第二载波信号的功率电平增加时，第一载波信号的电平，并且当第二载波信号的功率电平达到预定电平时禁止第一载波信号传输到远程接收机。

公开(公告)号：US20120189017A1

公开(公告)日：2012-07-26

申请号：US13436269

申请日：2012-03-30

申请人： Wallace Davis ,  Valentine J. Rhodes ,  Michael Beeler

发明人： Wallace Davis ,  Valentine J. Rhodes ,  Michael Beeler

IPC分类号： H04L12/56

CPC分类号： H04B10/1129 ,  H04B1/74 ,  H04B7/18582 ,  H04B10/118 ,  H04L1/0003 ,  H04L1/0015 ,  Y02D50/10

摘要： A method of hitless switching over a communications link, the method comprising transmitting, by a first modulator to a remote receiver, a first carrier signal having a first center frequency, enabling, by a second modulator to the remote receiver, transmission of a second carrier signal having a second center frequency while the first modulator is transmitting the first carrier signal, increasing, through the second modulator, a power level of the second carrier signal while the first carrier signal is transmitting, simultaneously decreasing, through the first modulator, a power level of the first carrier signal while the power level of the second carrier signal is increasing, and disabling transmission of the first carrier signal to the remote receiver when the power level of the second carrier signal reaches a predetermined level.

摘要翻译： 一种通过通信链路进行无连接切换的方法，所述方法包括由第一调制器向远程接收机发送具有第一中心频率的第一载波信号，由第二调制器向远程接收机发送第二载波的传输 信号具有第二中心频率，而第一调制器正在发送第一载波信号，当第一载波信号正在通过第一调制器同时减小时，通过第二调制器增加第二载波信号的功率电平， 当第二载波信号的功率电平增加时，第一载波信号的电平，并且当第二载波信号的功率电平达到预定电平时禁止第一载波信号传输到远程接收机。

公开(公告)号：US07539123B2

公开(公告)日：2009-05-26

申请号：US10607729

申请日：2003-06-27

申请人： Valentine J. Rhodes

发明人： Valentine J. Rhodes

IPC分类号： H04J11/00 ,  H04J1/00 ,  H04B1/707 ,  H04B7/00

CPC分类号： H04L5/0046 ,  H04L5/0007 ,  H04L5/006 ,  H04L27/2607 ,  H04L27/2618

摘要： A circuit and method provides subcarrier puncturing by placing no information in subcarriers that suffer from channel impairments where they cannot deliver information. If no energy is placed in these subcarriers, then the transmitted power may be re-allocated to the information carrying subcarriers to increase the Signal-to-Noise Ratio (SNR) at the target node. Or, energy may be place in subcarriers that suffer from channel impairments, but the PAPR of the OFDM symbol may be reduced.

摘要翻译： 电路和方法通过在不能传送信息的信道损伤的子载波中放置信息来提供副载波穿孔。 如果在这些子载波中没有能量放置，则可以将传输的功率重新分配给携带子载波的信息，以增加目标节点处的信噪比（SNR）。 或者，能量可以放在遭受信道损害的子载波中，但是可以减少OFDM符号的PAPR。

公开(公告)号：US5665117A

公开(公告)日：1997-09-09

申请号：US620072

申请日：1996-03-21

申请人： Valentine J. Rhodes

发明人： Valentine J. Rhodes

IPC分类号： A61F2/02 ,  A61F2/82 ,  A61F2/04

CPC分类号： A61F2/07 ,  A61F2/958 ,  A61F2/848 ,  A61F2/89 ,  A61F2/90 ,  A61F2002/072 ,  A61F2002/075 ,  A61F2002/077 ,  A61F2002/826 ,  A61F2250/0003

摘要： An intraluminal prosthesis for use in a blood vessel, e.g., the abdominal aorta, at which an aneurysm defining an aneurysmal space is located. The prosthesis basically comprises an expandable sleeve, an outer balloon, a pair of sealing rings or a sealing cover, a pair of expandable anchoring stents, and plural expandable support stents. The sleeve is an elongated tubular member defining a passageway having a pair of open ends for conveying blood therethrough. The outer balloon is disposed about the sleeve and is arranged to be filled with a fluid, e.g., a gel or saline, to cause it to extend outward to fill the aneurysmal space. The sleeve is arranged to be expanded and held in that state by the stents. The anchoring stents fixedly secure the prosthesis to the interior of the vessel, with the ends of the sleeve being sealed by the sealing rings or sealing cover to portions of the vessel on respective sides of the aneurysm to preclude the ingress of blood between the outer balloon and the interior of the vessel at the aneurysm, while the blood is conveyed through the passageway, and to preclude the egress of material, e.g., an embolus, from between the outer balloon and the interior of the vessel at the situs of the aneurysm.

摘要翻译： 用于血管中的腔内假体，例如腹主动脉，在该主动脉处定义了动脉瘤空间的动脉瘤。 假体基本上包括可膨胀套管，外球囊，一对密封环或密封盖，一对可扩张锚固支架和多个可扩张支撑支架。 套管是细长的管状构件，其限定具有一对开口端的通道，用于输送血液。 外球囊围绕套筒设置并且被布置成填充有流体，例如凝胶或盐水，以使其向外延伸以填充动脉瘤空间。 该套筒被布置为在该状态下被支架膨胀和保持。 锚固支架将假体固定地固定到容器的内部，套筒的端部被密封环或密封盖密封到动脉瘤相应侧上的血管的部分，以排除血液在外球囊之间的进入 和动脉内的血管，同时血液通过通道输送，并排除动脉瘤位置处的外球囊和血管内部之间的物质例如栓塞的出口。

公开(公告)号：US07693224B2

公开(公告)日：2010-04-06

申请号：US11094827

申请日：2005-03-30

申请人： Valentine J. Rhodes

发明人： Valentine J. Rhodes

IPC分类号： H04K1/10

CPC分类号： H04L27/2608 ,  H04L1/0003 ,  H04L1/0021 ,  H04L1/0025 ,  H04L25/0202

摘要： A communication device may obtain a channel estimate, and may adjust power thresholds governing an adaptive bit loading scheme. The communication device may include a transceiver arranged to receive data from a remote transmitter on a plurality of subcarriers. The communication device may also include a controller coupled to the transceiver. Finally, a memory unit may be coupled to the controller. The memory unit may contain a set of instructions that when executed cause the controller to cooperate with the transceiver to create a channel estimate, to create modulation criteria based at least in part on the channel estimate, and to command the remote transmitter, on a subcarrier-by-subcarrier basis, to employ a particular modulation technique on a particular subcarrier. Such a command may be based at least in part on a comparison of the channel estimate and the modulation criteria.

摘要翻译： 通信设备可以获得信道估计，并且可以调整控制自适应位加载方案的功率阈值。 通信设备可以包括布置成在多个子载波上从远程发射机接收数据的收发机。 通信设备还可以包括耦合到收发器的控制器。 最后，存储器单元可以耦合到控制器。 存储器单元可以包含一组指令，当执行导致控制器与收发器协作以创建信道估计时，至少部分地基于信道估计来创建调制标准，并在子载波上命令远程发射机 在子载波基础上采用特定的调制技术。 这样的命令可以至少部分地基于信道估计和调制准则的比较。

公开(公告)号：US07213197B2

公开(公告)日：2007-05-01

申请号：US10749624

申请日：2003-12-30

申请人： Eric A. Jacobsen ,  Valentine J. Rhodes

发明人： Eric A. Jacobsen ,  Valentine J. Rhodes

IPC分类号： G06F11/00

CPC分类号： H04L1/0071 ,  H03M13/1102 ,  H04L1/0003 ,  H04L1/004 ,  H04L1/0057 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04L27/261 ,  H04W48/18 ,  H04W84/12

摘要： An apparatus may include an orthogonal frequency division multiplexing (OFDM) physical layer interface. An adaptive subcarrier demodulator or an adaptive subcarrier modulator may be coupled to the OFDM physical layer interface to implement adaptive bit loading (ABL). A decoder or an encoder may be coupled to the adaptive subcarrier demodulator or to the adaptive subcarrier modulator to implement low density parity checking.

摘要翻译： 一种装置可以包括正交频分复用（OFDM）物理层接口。 自适应子载波解调器或自适应子载波调制器可以耦合到OFDM物理层接口以实现自适应比特加载（ABL）。 解码器或编码器可以耦合到自适应子载波解调器或自适应子载波调制器以实现低密度奇偶校验。

公开(公告)号：US07602696B2

公开(公告)日：2009-10-13

申请号：US10607798

申请日：2003-06-27

申请人： Valentine J. Rhodes

发明人： Valentine J. Rhodes

IPC分类号： H04J11/00 ,  H04B1/38 ,  H04L5/12 ,  H04L27/06

CPC分类号： H04L27/2607

摘要： Dynamic guard interval adaptation is provided for devices having differing delay spreads in an OFDM communication system to reduce the guard intervals, with adaptation controlled by either the wireless communications device or the network.

摘要翻译： 在OFDM通信系统中对具有不同延迟扩展的设备提供动态保护间隔适配以减少保护间隔，由适配器由无线通信设备或网络控制。

公开(公告)号：US5843160A

公开(公告)日：1998-12-01

申请号：US625121

申请日：1996-04-01

申请人： Valentine J. Rhodes

发明人： Valentine J. Rhodes

IPC分类号： A61F2/02 ,  A61F2/06 ,  A61F2/82 ,  A61M29/02

CPC分类号： A61F2/07 ,  A61F2/82 ,  A61F2/848 ,  A61F2/89 ,  A61F2/954 ,  A61F2/958 ,  A61F2002/065 ,  A61F2002/075 ,  A61F2002/077 ,  A61F2230/001 ,  A61F2250/0003

摘要： Expandable intraluminal prostheses for the treatment of aneurysmal disease or occlusive disease at a bifurcation of a vessel, duct, or lumen, e.g, disease at the aorto-iliac bifurcation. Each prosthesis includes three expandable, sleeve sections which are arranged to be located in respective portions of the vessel, duct, or lumen contiguous with the bifurcation, and secured together in situ. The prosthesis for aorto-iliac aneurysmal disease includes a common, stent-supported sleeve section having an expandable outer balloon for engaging and trapping the thrombus in the aneurysmal space in the abdominal aorta, and a pair of stent-supported sleeve limb sections. The limb sections are connected to the common section to provide a passage for blood to flow through the prosthesis. One or more of the limb sections can also include a outer balloon for engaging the thrombus within its associated aneurysmal space. Sealing mesh is provided on the prosthesis to prevent the egress of emboli and to permanently secure it in place. The prosthesis for aorto-iliac occlusive disease is similar the prothesis for aneurysmal disease, except that the sections of the prosthesis do not include an outer balloon.

摘要翻译： 可扩展的管腔内假体，用于在血管，导管或内腔的分叉处，例如在髂骨分叉处的疾病中治疗动脉瘤疾病或闭塞性疾病。 每个假体包括三个可膨胀的套筒部分，其布置成位于与分叉连通的容器，管道或腔的相应部分中，并且原位固定在一起。 用于主动脉髂动脉瘤疾病的假体包括常见的支架支撑的套管部分，其具有用于在腹主动脉中的动脉瘤空间中接合和捕获血栓的可扩张的外球囊，以及一对支架支撑的套管部分。 肢体部分连接到公共部分以提供血液通过假体的通道。 一个或多个肢体部分还可以包括用于使血栓接合在其相关的动脉瘤空间内的外球囊。 在假体上提供密封网以防止栓塞出血并将其永久固定到位。 用于主动脉闭塞性疾病的假体类似于动脉瘤疾病的假体，除了假体的部分不包括外气囊。

公开(公告)号：US5593417A

公开(公告)日：1997-01-14

申请号：US562727

申请日：1995-11-27

申请人： Valentine J. Rhodes

发明人： Valentine J. Rhodes

IPC分类号： A61F2/86 ,  A61M29/00

CPC分类号： A61F2/86 ,  A61F2/07 ,  A61F2/89 ,  A61F2002/072 ,  A61F2002/075 ,  A61F2002/8483

摘要： An endovascular graft for securement within a vessel, duct, or lumen of a living being. The graft comprises a tubular graft sleeve and a plurality of ring-like stents mounted on the outer surface of the sleeve. Anchoring projections are provided on the outer surface of the stents. The graft sleeve has a passageway extending therethrough, which when-the graft is located within the vessel, duct, or lumen serves to carry body fluid, e.g., blood, through it in a single direction. This action produces a force on the tubular sleeve and the plural stents mounted thereon. The anchoring projections extend outward from the outer surface of the stents and are arranged for engagement with the interior of the wall of the vessel, duct, or lumen. The anchoring projections are preferentially oriented to include portions extending at an acute angle to the direction of the fluid flow to tightly engage the interior of the wall of the vessel, duct, or lumen under the force applied by the fluid flowing through the device.

摘要翻译： 一种血管内移植物，用于固定在活体的血管，导管或管腔内。 移植物包括管状移植套管和安装在套管外表面上的多个环形支架。 在支架的外表面上设有锚固凸起。 移植物套管具有延伸穿过其中的通道，当移植物位于血管，管道或腔内时，其用于在单个方向上通过其携带体液（例如血液）。 该作用在管状套管和安装在其上的多个支架上产生力。 锚固突起从支架的外表面向外延伸并且布置成与血管，管道或内腔的壁的内部接合。 锚定突起优选地定向成包括以与流体流动方向成锐角延伸的部分，以在流过该装置的流体施加的力下紧密地接合容器，管道或内腔的壁的内部。

公开(公告)号：US5122154A

公开(公告)日：1992-06-16

申请号：US567849

申请日：1990-08-15

申请人： Valentine J. Rhodes

发明人： Valentine J. Rhodes

IPC分类号： A61F2/82 ,  A61F2/86

CPC分类号： A61F2/86 ,  A61F2/07 ,  A61F2/89 ,  A61F2/958 ,  A61F2002/072 ,  A61F2002/075 ,  A61F2002/826

摘要： An intraluminal graft for placement in a blood vessel, duct, or lumen, to hold it open. The graft comprises a sleeve having plural stents thereon. The sleeve is an elongated tubular member formed of a conventional graft material which is flexible and impervious to the ingrowth of tissue therein. Each stent is a generally ring-like member formed a plurality of interconnected movable links and is mounted about the periphery of a surface, e.g., inner or outer, of the sleeve at selected points along the sleeve to form respective spaced first sleeve sections. Each of the first sections extends for only a portion of the length of the graft, thereby leaving a plurality of second sleeve sections interposed between the first sleeve sections. The stents and the sleeve are arranged to be expanded, e.g., by a balloon catheter, from a compact state to an expanded state to increase the inner cross sectional area diameter of the sleeve. In the expanded state the stents are resistant to contraction back to the compact state. The graft is able to bend with respect to its longitudinal axis to enable it to be readily accommodated within a curved blood vessel, duct, or lumen.

摘要翻译： 用于放置在血管，导管或管腔中的管腔内移植物以将其保持开放。 移植物包括其上具有多个支架的套筒。 套筒是由常规接枝材料形成的细长管状构件，其可柔性并且不渗透其中的组织向内生长。 每个支架是形成多个相互连接的可移动连接件的大致环形构件，并且围绕套筒的表面（例如，内部或外部）的周边沿着套筒的选定点安装，以形成相应的间隔开的第一套筒部分。 每个第一部分仅延伸移植物的长度的一部分，从而留下插入在第一套筒部分之间的多个第二套筒部分。 支架和套筒被布置成例如通过气囊导管从紧凑状态扩展到扩张状态，以增加套筒的内横截面面积直径。 在扩张状态下，支架抵抗收缩回到紧凑状态。 移植物能够相对于其纵向轴线弯曲，使其能够容易地容纳在弯曲的血管，管道或内腔内。