公开(公告)号：US4924492A

公开(公告)日：1990-05-08

申请号：US171636

申请日：1988-03-22

Applicant: Richard D. Gitlin ,  Sailesh K. Rao ,  Jean-Jacques Werner ,  Nicholas Zervos

Inventor： Richard D. Gitlin ,  Sailesh K. Rao ,  Jean-Jacques Werner ,  Nicholas Zervos

IPC: H04L25/49 ,  H04L27/00 ,  H04L27/34 ,  H04M3/00 ,  H04M11/00

CPC classification number: H04L27/3438 ,  H04L25/4921

Abstract: In a telephone local loop transmission arrangement, data is communicated from the customer premises to the central office utilizing a multi-dimensional, passband signal illustratively at 480 kb/s and 1.544 Mb/s.

公开(公告)号：US4924480A

公开(公告)日：1990-05-08

申请号：US166867

申请日：1988-03-11

Applicant: Steven L. Gay ,  Richard D. Gitlin ,  John Hartung

Inventor： Steven L. Gay ,  Richard D. Gitlin ,  John Hartung

IPC: H04B14/04 ,  H04Q3/42 ,  H04Q11/04 ,  H04W88/18

CPC classification number: H04W88/181 ,  H04B14/046 ,  H04Q11/04

Abstract: In a private telecommunications network, a plurality of digital PBXs are interconnected via pairs of codecs. The codecs of each pair, or "tandem", are each operative to encode 64 kilobit/second (kbps) mu-law speech so as to compress it to 16 kbps speech for transmission to the other codec in the tandem. The latter is operative to thereafter decompress the 16 kbps speech back to 64 kbps. Each codec has a second mode of operation in which, rather than decode the encoded speech, it preserves the bits thereof in its own output signal. The codec transitions to this mode whenever it recognizes the presence of another codec on its high-bit-rate side of the connection. As a result, only one encoding/decoding cycle is performed across the connection, thereby minimizing the speech-coding-induced distortion and delay therein. The mechanism enabling a codec to communicate its presence to another codec on its high-bit-rate side of the connection is based on the transmission of predetermined synchronization patterns inserted in the signals it outputs in that direction. In a second embodiment, codecs of the above-described type are used in a cellular mobile radio telecommunications system.

公开(公告)号：US4334313A

公开(公告)日：1982-06-08

申请号：US185016

申请日：1980-09-08

Applicant: Richard D. Gitlin ,  Howard C. Meadors, Jr.

Inventor： Richard D. Gitlin ,  Howard C. Meadors, Jr.

IPC: H04L7/02 ,  H04B3/04

CPC classification number: H04L7/0058

Abstract: In a first data receiver (10), sampling circuitry (20, 25, 35) forms samples of a received data signal representing a succession of data symbols. The samples are formed at twice the symbol rate. Transversal filter circuitry (251, 261) operates on the samples by multiplying them by respective ones of a queue of coefficients. Further circuitry (55, 60, 65, 70, 252, 262), operative in response to the resulting products, forms decisions as to the values of the transmitted symbols and updates the values of the coefficients. Timing recovery circuitry (40) periodically identifies the largest of the coefficients in magnitude and either advances or retards the operation of the sampling circuitry by a fixed step size depending on whether that coefficient is or is not within a predetermined portion of the queue. Timing recovery circuitry (830) within a second data receiver (100) operates in a similar manner, but employs a step size whose magnitude is determined by the position of the largest coefficient relative to the center of the coefficient queue.

Abstract translation: 在第一数据接收器（10）中，采样电路（20,25,35）形成表示一系列数据符号的接收数据信号的采样。 样品以符号率的两倍形成。 横向滤波器电路（251,261）通过将它们乘以系数队列中的相应的一个来对样本进行操作。 响应于所得到的产品可操作的进一步的电路（55,60,65,70,252,262）形成关于发送符号的值的决定并更新系数的值。 定时恢复电路（40）周期性地识别幅度中最大的系数，并且取决于系数是否在队列的预定部分内或者不在队列的预定部分内，使采样电路的操作前进或延迟固定的步长。 第二数据接收器（100）内的定时恢复电路（830）以类似的方式操作，但采用其幅度由相对于系数队列的中心的最大系数的位置确定的步长。

公开(公告)号：US4253184A

公开(公告)日：1981-02-24

申请号：US91832

申请日：1979-11-06

Applicant: Richard D. Gitlin ,  Stephen B. Weinstein

Inventor： Richard D. Gitlin ,  Stephen B. Weinstein

IPC: H04L27/22 ,  H04B3/06 ,  H04L27/01 ,  H04L27/38 ,  H03K5/159 ,  H04B3/14

CPC classification number: H04L27/01

Abstract: A quadrature amplitude-modulated (QAM) data signal receiver employs a phase compensation arrangement (16, 31, 33) before the equalizer (17). The arrangement utilizes the assumption that the frequency components typically present in the phase perturbance are power-line related. This enables an effective phase compensator to be of relatively low complexity compared to the equalizer (17). Since the compensator is "pretuned", only the phase and amplitude of the frequency components need be adaptively found. This makes for a relatively stable arrangement with a suitable convergence rate. In an alternative arrangement, a phase compensator (216, 233, 240) is provided for use after the equalizer (217).

Abstract translation: 正交幅度调制（QAM）数据信号接收机在均衡器（17）之前采用相位补偿装置（16,33,33）。 该布置利用了通常存在于相位扰动中的频率分量与电力线相关的假设。 与均衡器（17）相比，这使得有效的相位补偿器具有相对低的复杂度。 由于补偿器是“预调”，所以只能自适应地发现频率分量的相位和幅度。 这使得具有适当收敛速度的相对稳定的布置。 在替代布置中，提供相位补偿器（216,233,240）以在均衡器（217）之后使用。

公开(公告)号：US20190313225A1

公开(公告)日：2019-10-10

申请号：US16222497

申请日：2018-12-17

Applicant: Richard D. Gitlin ,  Mohamed H. Elkourdi ,  Asim M. Mazin

Inventor： Richard D. Gitlin ,  Mohamed H. Elkourdi ,  Asim M. Mazin

IPC: H04W4/70 ,  H04L29/08 ,  H04J99/00 ,  H04W52/02 ,  H04W74/08

Abstract: Slotted Aloha-NOMA (SAN) protocol is an uncoordinated, non-orthogonal, random access protocol that exploits the simplicity of SA (Slotted Aloha) and the superior throughput of non-orthogonal multiple access (NOMA) and its ability to resolve collisions via use of successive interference cancellation (SIC) receiver. In SAN protocol, the SIC receiver at the IoT gateway adaptively learns the number of active devices (which is not known a priori) using multiple hypothesis testing in order to successfully distinguish between signals transmitted from different IoT devices.

公开(公告)号：US10076228B1

公开(公告)日：2018-09-18

申请号：US15783568

申请日：2017-10-13

Applicant: Richard D. Gitlin ,  Gabriel E. Arrobo ,  Thomas P. Ketterl

Inventor： Richard D. Gitlin ,  Gabriel E. Arrobo ,  Thomas P. Ketterl

IPC: H04B7/00 ,  A61B1/00 ,  A61B5/00 ,  H04W40/00 ,  H04W8/22 ,  H04L29/08 ,  A61B5/07 ,  A61B17/32 ,  H04W76/10 ,  H04W84/12 ,  A61B17/00

CPC classification number: A61B1/00016 ,  A61B1/00006 ,  A61B5/0022 ,  A61B5/0024 ,  A61B5/0031 ,  A61B5/0402 ,  A61B5/07 ,  A61B5/14532 ,  A61B17/00234 ,  A61B17/32 ,  A61B2017/00212 ,  A61B2017/00221 ,  A61B2017/00345 ,  H04L67/12 ,  H04L67/125 ,  H04L67/22 ,  H04W8/22 ,  H04W40/00 ,  H04W76/10 ,  H04W84/12

Abstract: A system for performing non-invasive networked medical procedures including a number of in vivo medical devices, a communication path between at least two of the devices, an ex vivo control unit to control the behavior of the devices, and a wireless communication path between the control unit and at least one of the devices. An associated method for performing non-invasive networked medical procedures is also provided. Further included is a simulation method that utilizes accurate electromagnetic field simulations, using a software based test bench, to determine the maximum allowable transmitted power levels from in vivo devices to achieve a required bit error rates (BER) at an in vivo or ex vivo node (receiver) while maintaining the specific absorption rate (SAR) under a required threshold.

公开(公告)号：US08619784B2

公开(公告)日：2013-12-31

申请号：US12009833

申请日：2008-01-22

Applicant: Norival R. Figueira ,  Fong Liaw ,  Richard D. Gitlin

Inventor： Norival R. Figueira ,  Fong Liaw ,  Richard D. Gitlin

IPC: H04L12/28

CPC classification number: H04L12/4675 ,  H04L12/462 ,  H04L12/4654 ,  H04L12/4658 ,  H04L12/4662 ,  H04L45/50 ,  H04L45/74

Abstract: Transferring data in a network is disclosed. Transferring includes receiving a Provider Backbone Transport (PBT) frame, identifying a plurality of location specific identifiers in the PBT frame, mapping the PBT frame to a service based at least in part on the plurality of location specific identifiers, formatting the PBT frame according to the service to obtain a service frame, and transferring the service frame to a network associated with the service.

Abstract translation: 公开了在网络中传送数据。 转移包括接收提供商骨干传输（PBT）帧，识别PBT帧中的多个位置特定标识符，至少部分地基于多个位置特定标识符将PBT帧映射到服务，根据 获取服务帧的服务，以及将服务帧传送到与服务相关联的网络。

公开(公告)号：US08504136B1

公开(公告)日：2013-08-06

申请号：US12899076

申请日：2010-10-06

Applicant: Yu Sun ,  Richard D. Gitlin ,  Adam Anderson ,  Alexander Rosemurgy ,  Sharona Ross

Inventor： Yu Sun ,  Richard D. Gitlin ,  Adam Anderson ,  Alexander Rosemurgy ,  Sharona Ross

IPC: A61B5/05

CPC classification number: A61B5/1076 ,  A61B5/1077 ,  A61B5/1079 ,  A61B90/36 ,  A61B90/361 ,  A61B2017/00221 ,  A61B2090/366

Abstract: This invention is in the domain of minimally invasive surgery and is a method and apparatus that transforms and displays images of internal organs and tissues taken from internally located imaging devices on external skin. The image displayed on the skin aligns with the actual physical location, orientation, and size of the internal organs and tissues in a way that viewers have the perception that the skin is transparent. This method and apparatus enables surgeons to have the same hand-eye coordination as in an open surgery during a minimally invasive surgery.

Abstract translation: 本发明处于微创手术领域，并且是从外部皮肤上从内部定位的成像装置中取出并显示内部器官和组织的图像的方法和装置。 显示在皮肤上的图像与内部器官和组织的实际物理位置，方向和尺寸一致，使得观看者对皮肤透明的感觉。 这种方法和装置使得外科医生在微创手术期间具有与开放手术相同的手眼协调。

公开(公告)号：US08385355B1

公开(公告)日：2013-02-26

申请号：US12290463

申请日：2008-10-29

Applicant: Norival R. Figueira ,  Richard D. Gitlin

Inventor： Norival R. Figueira ,  Richard D. Gitlin

IPC: H04L29/06 ,  H04L12/44

CPC classification number: H04L12/4625

Abstract: An E-Tree is disclosed which includes a root node associated with a Metro Ethernet network. The E-Tree includes a first Virtual Bridge (VB), associated with the root node, which is configured to process Ethernet traffic, and a second node associated with the Metro Ethernet network. The E-Tree includes a second VB, associated with the second node, configured to process Ethernet traffic and having a first connection between the first VB and the second VB. The second VB is configured to be able to send Ethernet traffic to the first VB via the first connection, if appropriate. In the event there is a second connection between the second VB and a third VB and the second connection has been assigned a down direction from the point of view of the second VB, the second VB is not permitted to send traffic received from the second connection to another connection which from the point of view of the second VB has been assigned a down direction.

Abstract translation: 公开了一种E-Tree，其包括与城域以太网相关联的根节点。 E树包括与根节点相关联的第一虚拟网桥（VB），其被配置为处理以太网流量，以及与城域以太网相关联的第二节点。 E树包括与第二节点相关联的第二VB，被配置为处理以太网业务并具有第一VB和第二VB之间的第一连接。 第二个VB配置为能够通过第一个连接将第一个VB发送以太网流量（如果适用）。 在第二VB和第三VB之间存在第二连接的情况下，并且从第二VB的角度向第二连接分配了下行方向，则不允许第二VB发送从第二连接接收的业务 涉及从第二VB的角度分配了向下方向的另一连接。

公开(公告)号：US08018880B2

公开(公告)日：2011-09-13

申请号：US12079413

申请日：2008-03-25

Applicant: Norival R. Figueira ,  Richard D. Gitlin

Inventor： Norival R. Figueira ,  Richard D. Gitlin

IPC: H04B3/30

CPC classification number: H04L12/4662 ,  H04L12/4604 ,  H04L45/50

Abstract: A Layer 2 Virtual Private Network (L2VPN) system is provided. A Provider Backbone Bridge (PBB) network is provided which comprises a plurality of sites to be connected via a L2VPN. The plurality of sites in the PBB network is connected using a plurality of provider backbone trunks that includes a Provider Backbone Transport (PBT) trunk or a Provider Backbone Bridge Traffic Engineering (PBB-TE) trunk, such that the L2VPN includes the plurality of sites.

Abstract translation: 提供二层虚拟专用网（L2VPN）系统。 提供了一种提供商骨干桥（PBB）网络，其包括要通过L2VPN连接的多个站点。 PBB网络中的多个站点使用包括提供商骨干传输（PBT）中继线或提供商骨干网桥流量工程（PBB-TE）中继线）的多个供应商骨干干线连接，使得L2VPN包括多个站点 。