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33 条记录 (耗时 0.02 秒)

    Signal communications system and method for noisy links
    2.
    发明授权
    Signal communications system and method for noisy links 有权
    信号通信系统和噪声链路的方法

    公开(公告)号：US07505531B1

    公开(公告)日：2009-03-17

    申请号：US09528111

    申请日：2000-03-17

    申请人： Eliezer Pasternak ,  Ladd El Wardani

    发明人： Eliezer Pasternak ,  Ladd El Wardani

    IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49

    CPC分类号： H04L1/0065 ,  H04L1/0041 ,  H04L1/0054

    摘要： A system and method for communicating signals over a noisy channel is provided wherein an input signal may be sampled and modulated to make the signal more noise insensitive. In accordance with one embodiment, of the invention, an signal code modulation (SCM) scheme may be used wherein digital and analog signals representing the original signal are generated. In another embodiment, an original modulated signal may be demodulated and then remodulated using a more robust modulation scheme. The system may be used to a variety of applications including wireless internet access.

    摘要翻译： 提供了一种用于在噪声通道上传送信号的系统和方法，其中可以对输入信号进行采样和调制以使信号更加不敏感。 根据本发明的一个实施例，可以使用信号编码调制（SCM）方案，其中产生表示原始信号的数字和模拟信号。 在另一个实施例中，可以解调原始调制信号，然后使用更鲁棒的调制方案进行再调制。 该系统可用于各种应用，包括无线互联网接入。

    Direct digitally tunable microwave oscillators and filters
    3.
    发明授权
    Direct digitally tunable microwave oscillators and filters 有权
    直接数字可调微波振荡器和滤波器

    公开(公告)号：US07310215B2

    公开(公告)日：2007-12-18

    申请号：US10420167

    申请日：2003-04-21

    申请人： Eliezer Pasternak

    发明人： Eliezer Pasternak

    IPC分类号： H01H5/00

    CPC分类号： H04B1/18 ,  H03B2201/0208 ,  H03B2201/025

    摘要： A tunable element in the microwave frequency range is described that may include one or more tunable elements that are directly digitally controlled by a digital bus connecting a digital control circuit to each controlled element. In particular, each digital signal is filtered by a digital isolation technique so that the signal reaches the tunable elements with very low noise. The low noise digital signals are then converted to analog control voltages. The direct D/A conversion is accomplished by a special D/A converter which is manufactured as an integral part of a substrate. This D/A converter in accordance with the invention may consist of a resistor ladder or a directly digitally controlled capacitor. The direct digitally controlled capacitor may be a cantilevered type capacitor having multiple separate electrodes or sub-plates representing binary bits that may be used to control the capacitor. A low cost microwave oscillator is disclosed in which some of the filters and oscillators are direct digitally tuned elements.

    摘要翻译： 描述了微波频率范围中的可调元件，其可以包括由数字总线直接数字控制的一个或多个可调元件，数字总线将数字控制电路连接到每个受控元件。 特别地，每个数字信号被数字隔离技术滤波，使得信号以非常低的噪声到达可调谐元件。 然后将低噪声数字信号转换为模拟控制电压。 直接D / A转换是通过专门的D / A转换器来实现的，该D / A转换器被制造为衬底的一个组成部分。 根据本发明的该D / A转换器可以由电阻梯或直接数字控制的电容器组成。 直接数控电容器可以是具有多个分开的电极或表示可用于控制电容器的二进制位的子板的悬臂式电容器。 公开了一种低成本的微波振荡器，其中一些滤波器和振荡器是直接的数字调谐元件。

    Ophthalmic aspirator/irrigator and cystotome
    4.
    发明授权
    Ophthalmic aspirator/irrigator and cystotome 失效
    眼科抽吸器/冲洗器和膀胱切开术

    公开(公告)号：US4508532A

    公开(公告)日：1985-04-02

    申请号：US530730

    申请日：1983-09-09

    申请人： Robert C. Drews ,  Danny D. Meyer ,  Tadmor Shalon ,  Eliezer Pasternak

    发明人： Robert C. Drews ,  Danny D. Meyer ,  Tadmor Shalon ,  Eliezer Pasternak

    IPC分类号： A61F9/007 ,  A61B17/32

    CPC分类号： A61F9/00736

    摘要： An ophthalmic aspirator and cystotome having a hand-held, motorized instrument which is operated by a battery-run control system. The instrument includes a disposable coaxial aspirator-irrigator tip and a wormdrive mechanism for bidirectional, variable speed operation and also includes a disposable scalpel tip with infusion/irrigation orifice for communication with an intraveneous solution bag. The scalpel tip is coupled through a clutch mechanism to the motor, which may be adjusted by the control system to make single or repeated cuts in either of two rotary directions. The aspirator's most frequently needed controls are mounted on the handpiece to provide an easily operable instrument of great precision for use in eye surgery. The instrument features an electronic control circuit housed in part within a desk top or suspendable unit and in part within the handpiece. The circuit may be switched between the aspirator mode and the cystotome mode and provides control signals to a motor carried within the handpiece. In the aspirator mode the circuit generates aspirate and backflush signals at the touch of a control switch mounted on the handpiece. Flow rates are continuously variable by means of a potentiometer control in the butt of the handpiece. In the cystotome mode the control switch commands either single cutting strokes or repeated cutting strokes in either of two rotary directions, the direction being selected by the potentiometer control.

    摘要翻译： 具有由电池运行控制系统操作的手持式电动仪器的眼科抽吸器和囊肿切片机。 该仪器包括一次性同轴抽吸器 - 冲洗器尖端和用于双向，可变速度操作的蜗杆传动机构，并且还包括具有输注/冲洗孔的一次性手术刀尖，用于与静脉内溶液袋通信。 手术刀尖通过离合器机构联接到电动机，其可以由控制系统调节以在两个旋转方向中的任一个中进行单次或重复切割。 吸气器最常用的控制器安装在手持件上，以提供用于眼科手术的高精度的易于操作的仪器。 该仪器具有电子控制电路，其部分地容纳在桌面或可悬挂单元内，并且部分地容纳在手持件内。 电路可以在吸气器模式和膀胱切开模式之间切换，并且向手持件中携带的电动机提供控制信号。 在吸气器模式下，电路在安装在手机上的控制开关触摸时产生抽吸和反冲信号。 通过手柄对接处的电位器控制，流速可以连续变化。 在膀胱切开模式下，控制开关可以在两个旋转方向中的任意一个方向上进行单次切削冲程或重复切削冲程，该方向由电位计控制选择。

    Wideband digital radio with transmit modulation cancellation
    5.
    发明授权
    Wideband digital radio with transmit modulation cancellation 有权
    宽带数字无线电与发射调制取消

    公开(公告)号：US08311082B2

    公开(公告)日：2012-11-13

    申请号：US10987819

    申请日：2004-11-12

    申请人： Eliezer Pasternak ,  Gregg Levin ,  Idan Bar-Sade ,  John Park

    发明人： Eliezer Pasternak ,  Gregg Levin ,  Idan Bar-Sade ,  John Park

    IPC分类号： H04B1/38

    CPC分类号： H01Q1/125 ,  H01Q3/08 ,  H04B1/18 ,  H04B1/403 ,  H04L27/14

    摘要： A microwave radio assembly is described including a directional antenna wherein the installation and aiming is simplified. The assembly is attached to the wall-mount fix via gimbals mechanism with one rotation axis for azimuth and one for elevation and the assembly preferably includes a sight mechanism including a pair of visual apertures is located in the radio assembly in a line parallel to the radio antenna radiation direction. The radio assembly further includes a modulation cancellation scheme in full duplex mode.

    摘要翻译： 描述了一种微波无线电组件，其包括定向天线，其中安装和瞄准被简化。 组件通过万向架机构连接到壁挂式固定件上，一个旋转轴线用于方位角，一个用于升高，组件最好包括一个瞄准机构，包括一对视觉孔径，位于无线电组件中，平行于无线电 天线辐射方向。 无线电组件还包括全双工模式的调制消除方案。

    Digital Microwave Radio Link with a Variety of Ports
    6.
    发明申请
    Digital Microwave Radio Link with a Variety of Ports 有权
    数字微波无线电链路与各种端口

    公开(公告)号：US20110081872A1

    公开(公告)日：2011-04-07

    申请号：US12684756

    申请日：2010-01-08

    申请人： Idan Bar-Sade ,  Eliezer Pasternak ,  John Park ,  Bin Zhang

    发明人： Idan Bar-Sade ,  Eliezer Pasternak ,  John Park ,  Bin Zhang

    IPC分类号： H04B1/40

    CPC分类号： H04L1/0002 ,  H04L1/0015 ,  H04L1/0057 ,  H04L1/203 ,  H04L12/46 ,  H04L27/0014 ,  H04L27/2273

    摘要： A microwave radio terminal capable of multiple gigabits/sec bit rate is provided. The radio terminal may use QAM modulation, including the two lowest modulation formats of BPSK and QPSK. The serial bit stream, including forward error correction (FEC) and all other overhead, is prepared in a digital circuit, such as a filed programmable gate array (FPGA) and is output serially, using SERDES devices inside the FPGA, as two separate channels known as “I-channel” and “Q-channel”.

    摘要翻译： 提供能够具有多吉比特/秒比特率的微波无线电终端。 无线终端可以使用包括BPSK和QPSK两种最低调制格式的QAM调制。 包括前向纠错（FEC）和所有其他开销的串行比特流在诸如现有可编程门阵列（FPGA）的数字电路中准备，并且使用FPGA内部的SERDES设备串行地输出，作为两个单独的通道 被称为“I-channel”和“Q-channel”。

    Reliable ATM microwave link and network
    9.
    发明授权
    Reliable ATM microwave link and network 失效
    可靠的ATM微波链路和网络

    公开(公告)号：US5648969A

    公开(公告)日：1997-07-15

    申请号：US388110

    申请日：1995-02-13

    申请人： Eliezer Pasternak ,  Gideon BenEfraim

    发明人： Eliezer Pasternak ,  Gideon BenEfraim

    IPC分类号： H04Q3/00 ,  H04B1/40 ,  H04B7/26 ,  H04L1/00 ,  H04L12/56 ,  H04Q11/04 ,  H04B7/24 ,  H04L12/66

    CPC分类号： H04L1/0057 ,  H04L1/0083 ,  H04L49/107 ,  H04Q11/0478 ,  H04B1/403 ,  H04L2012/5607 ,  H04L2012/561 ,  H04L2012/5616 ,  H04L2012/5619 ,  H04L2012/5647 ,  H04L2012/5652 ,  H04L2012/5671 ,  H04L2012/5673

    摘要： A digital radio link suitable for transmitting digital voice or data signals includes an input circuit for ATM or equivalent cells, a processing circuit to encapsulate the input cells received by the input circuit with at least error check bits so that detected error can identify a specific cell or group of cells, a digital transmission circuit for transmitting the encapsulated cells via a wireless link, a reception circuit for receiving encapsulated cells from an opposite side of the digital radio link, a cell decapsulation and error detection circuit connected to said reception circuit and a cell output circuit for connecting said decapsulation circuit to a digital access unit. The system includes structure for allocating more than one type of service, such as low delay service for voice transmission and extensive forward error correction service for data transmission.

    摘要翻译： 适用于发送数字语音或数据信号的数字无线电链路包括用于ATM或等效小区的输入电路，处理电路，至少用错误校验位来封装由输入电路接收的输入单元，以便检测到的错误可以识别特定单元 或组单元，用于经由无线链路发送封装的单元的数字传输电路，用于从数字无线电链路的相对侧接收封装的单元的接收电路，连接到所述接收电路的单元解封装和错误检测电路，以及 单元输出电路，用于将所述解封装电路连接到数字存取单元。 该系统包括用于分配多种类型的服务的结构，例如用于语音传输的低延迟服务和用于数据传输的广​​泛的前向纠错服务。

    Hand-held diathermy apparatus
    10.
    发明授权
    Hand-held diathermy apparatus 失效
    手持式透热器

    公开(公告)号：US4878493A

    公开(公告)日：1989-11-07

    申请号：US815661

    申请日：1985-12-30

    申请人： Eliezer Pasternak ,  Robert C. Drews ,  Tadmor Shalon

    发明人： Eliezer Pasternak ,  Robert C. Drews ,  Tadmor Shalon

    IPC分类号： A61B18/12 ,  H03K3/354 ,  H03K17/687

    CPC分类号： A61B18/1206 ,  A61B18/12 ,  H03K17/6871 ,  H03K3/354 ,  A61B2018/0066 ,  A61B2018/1226 ,  A61B2018/1286

    摘要： A hand-held or portable diathermy apparatus is disclosed comprising a housing, a battery power supply preferably within the housing, and at least one electrode carried by the housing. The apparatus includes a radio frequency power generator for generating an oscillatory current ranging between about 1 kilohertz and about 20 megahertz, and supplying this oscillatory current to the electrodes. A manually operated switch is carried by the housing for selective energization of the radio frequency generator whereby, upon energization thereof, the apparatus is capable of being cycled several times outputting up to about 20 watts of power for up to 20 seconds or more on each cycle.

    摘要翻译： 公开了一种手持或便携式透热设备，其包括壳体，优选地在壳体内的电池电源以及由壳体承载的至少一个电极。 该装置包括射频功率发生器，用于产生范围在约1千赫兹和约20兆赫之间的振荡电流，并将该振荡电流提供给电极。 手动操作的开关由外壳承载，用于选择性地激励射频发生器，由此，在通电时，该装置能够循环多次，每个周期输出高达约20瓦的功率达20秒以上 。