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。

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。

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。