公开(公告)号：US08338791B2

公开(公告)日：2012-12-25

申请号：US12665558

申请日：2008-05-23

申请人： Roland Proksa ,  Jens-Peter Schlomka ,  Ewald Roessl ,  Tuvia Liran ,  Aviv Marks

发明人： Roland Proksa ,  Jens-Peter Schlomka ,  Ewald Roessl ,  Tuvia Liran ,  Aviv Marks

IPC分类号： G01J5/02

CPC分类号： G01T1/171

摘要： An apparatus includes a local minimum identifier (408) that identifies a local minimum between overlapping pulses in a signal, wherein the pulses have amplitudes that are indicative of the energy of successively detected photons from a multi-energetic radiation beam by a radiation sensitive detector, and a pulse pile-up error corrector (232) that corrects, based on the local minimum, for a pulse pile-up energy-discrimination error when energy-discriminating the pulses using at least two thresholds corresponding to different energy levels. This technique may reduce spectral error when counting photons at a high count rate.

摘要翻译： 一种装置包括识别信号中重叠脉冲之间的局部最小值的局部最小标识符（408），其中脉冲具有指示由辐射敏感检测器从多能辐射束连续检测到的光子的能量的幅度， 以及脉冲堆积误差校正器（232），其基于局部最小值来校正针对对应于不同能级的至少两个阈值对脉冲进行能量鉴别的脉冲堆积能量鉴别误差。 当以高计数率计数光子时，该技术可能降低光谱误差。

公开(公告)号：US20100270472A1

公开(公告)日：2010-10-28

申请号：US12665558

申请日：2008-05-23

申请人： Roand Proksa ,  Jens-Peter Schlomka ,  Ewald Roessl ,  Tuvia Liran ,  Aviv Marks

发明人： Roand Proksa ,  Jens-Peter Schlomka ,  Ewald Roessl ,  Tuvia Liran ,  Aviv Marks

IPC分类号： G01T1/17

CPC分类号： G01T1/171

摘要： An apparatus includes a local minimum identifier (408) that identifies a local minimum between overlapping pulses in a signal, wherein the pulses have amplitudes that are indicative of the energy of successively detected photons from a multi-energetic radiation beam by a radiation sensitive detector, and a pulse pile-up error corrector (232) that corrects, based on the local minimum, for a pulse pile-up energy-discrimination error when energy-discriminating the pulses using at least two thresholds corresponding to different energy levels. This technique may reduce spectral error when counting photons at a high count rate.

摘要翻译： 一种装置包括识别信号中重叠脉冲之间的局部最小值的局部最小标识符（408），其中脉冲具有指示由辐射敏感检测器从多能辐射束连续检测到的光子的能量的幅度， 以及脉冲堆积误差校正器（232），其基于局部最小值来校正针对对应于不同能级的至少两个阈值对脉冲进行能量鉴别的脉冲堆积能量鉴别误差。 当以高计数率计数光子时，该技术可能降低光谱误差。

公开(公告)号：US20100207027A1

公开(公告)日：2010-08-19

申请号：US12682269

申请日：2008-10-09

申请人： Aviv Marks ,  Tuvia Liran

发明人： Aviv Marks ,  Tuvia Liran

IPC分类号： G01T1/18

CPC分类号： G01T1/171

摘要： A particle-counting apparatus is described, which reduces a resulting width of pulses when a charge pulse is received from a particle detector, thereby reducing pile-up problems with pulses. Pulse shortening is obtained by resetting the pulse shortly after it exceeds its peak level at the apparatus output. The apparatus includes a charge-sensitive amplifier and a shaper which generates an output for subsequent discrimination circuits. A reset generator monitors the shaper output and generates a reset signal to the shaper when a peak has been detected.

摘要翻译： 描述了一种粒子计数装置，当从粒子检测器接收到充电脉冲时，其减少了所产生的脉冲宽度，从而减少了脉冲堆积问题。 脉冲缩短是通过在器件输出超过其峰值电平后不久复位脉冲而获得的。 该装置包括一个电荷敏感放大器和整形器，其产生后续鉴别电路的输出。 当检测到峰值时，复位发生器监视整形器输出并产生到整形器的复位信号。

公开(公告)号：US08415635B2

公开(公告)日：2013-04-09

申请号：US12682269

申请日：2008-10-09

申请人： Aviv Marks ,  Tuvia Liran

发明人： Aviv Marks ,  Tuvia Liran

IPC分类号： H01L27/146

CPC分类号： G01T1/171

摘要： A particle-counting apparatus is described, which reduces a resulting width of pulses when a charge pulse is received from a particle detector, thereby reducing pile-up problems with pulses. Pulse shortening is obtained by resetting the pulse shortly after it exceeds its peak level at the apparatus output. The apparatus includes a charge-sensitive amplifier and a shaper which generates an output for subsequent discrimination circuits. A reset generator monitors the shaper output and generates a reset signal to the shaper when a peak has been detected.

摘要翻译： 描述了一种粒子计数装置，当从粒子检测器接收到充电脉冲时，其减少了所产生的脉冲宽度，从而减少了脉冲堆积问题。 脉冲缩短是通过在器件输出超过其峰值电平后不久复位脉冲而获得的。 该装置包括一个电荷敏感放大器和整形器，其产生后续鉴别电路的输出。 当检测到峰值时，复位发生器监视整形器输出并产生到整形器的复位信号。

公开(公告)号：US10411688B1

公开(公告)日：2019-09-10

申请号：US16016625

申请日：2018-06-24

申请人： Tuvia Liran ,  Uzi Zangi ,  Tzach Hadas

发明人： Tuvia Liran ,  Uzi Zangi ,  Tzach Hadas

IPC分类号： H03K5/24 ,  H03K17/687

摘要： A method and apparatus for implementing a CMOS buffer for driving a reference voltage that consumes very low current in normal operating conditions but drive high current when output voltage is off, tracking the required reference voltage. The circuit is operating in a “deadzone” most of the time, where pull-up and pull-down current paths are blocked, and ultra-low power comparators, with build-in offset, are monitoring the output voltage continuously, and driving compensation current, when needed. The circuit can be manufactured with a standard CMOS processing technology.

公开(公告)号：US20120035725A1

公开(公告)日：2012-02-09

申请号：US12852218

申请日：2010-08-06

申请人： Ra'anan Gefen ,  Tuvia Liran

发明人： Ra'anan Gefen ,  Tuvia Liran

IPC分类号： A61F2/16

CPC分类号： A61N1/3787 ,  A61N1/0543 ,  A61N1/36046

摘要： Apparatus is provided including an external device including, a mount, which is placed in front of an eye of a subject. A power source is coupled to the mount and emits energy toward the eye. An intraocular device is implanted entirely in the subject's eye, and includes a control unit, a plurality of stimulating electrodes, and an energy receiver, which receives the energy from the power source and generates a voltage drop in response thereto. A plurality of photosensors detect photons and generate a signal in response thereto. Driving circuitry is coupled to the energy receiver and to the photosensors, and drives the electrodes to apply electrical charges to a retina in response to the signals from the photosensors. The external device modulates the emitted energy, and the control unit demodulates the modulated energy to regulate an operation parameter of the intraocular device. Other embodiments are also described.

摘要翻译： 提供了包括外部装置的装置，其包括放置在被检体的眼睛前方的安装件。 电源耦合到安装座并向眼睛发射能量。 将眼内装置全部植入受检者的眼睛，并且包括控制单元，多个刺激电极和能量接收器，其接收来自电源的能量并响应于此产生电压降。 多个光电传感器检测光子并响应于此产生信号。 驱动电路耦合到能量接收器和光电传感器，并且驱动电极以响应于来自光电传感器的信号将电荷施加到视网膜。 外部设备调制发射的能量，并且控制单元解调调制的能量以调节眼内装置的操作参数。 还描述了其它实施例。

公开(公告)号：US4754168A

公开(公告)日：1988-06-28

申请号：US8188

申请日：1987-01-28

申请人： Tuvia Liran

发明人： Tuvia Liran

IPC分类号： G05F3/20 ,  H03L1/00 ,  H01L27/04 ,  H01L29/94 ,  H03K3/013

CPC分类号： G05F3/205

摘要： A substrate bias generator of the type that includes a driver for providing an AC signal to a charge pump node, a first switch coupled between the charge pump node and ground such that charge is pumped from the charge pump node to ground when the voltage at the charge pump node is near its peak, and a second switch coupled between the charge pump node and the substrate such that charge is pumped to the charge pump node from the substrate when the voltage at the charge pump node is near its most negative value. A unidirectional switch is provided between the first switch and ground to prevent charge from flowing from ground to the charge pump node when the second switch is open.

摘要翻译： 一种衬底偏置发生器，其类型包括用于向电荷泵节点提供AC信号的驱动器，耦合在电荷泵节点和地之间的第一开关，使得当电荷泵节点处于 电荷泵节点接近其峰值，以及耦合在电荷泵节点和衬底之间的第二开关，使得当电荷泵节点处的电压接近其最大负值时，电荷从衬底泵送到电荷泵节点。 在第一开关和地之间提供单向开关，以防止当第二开关断开时电荷从地面流向电荷泵节点。

公开(公告)号：US20140143559A1

公开(公告)日：2014-05-22

申请号：US13683158

申请日：2012-11-21

申请人： Ra'anan Gefen ,  Tuvia Liran

发明人： Ra'anan Gefen ,  Tuvia Liran

IPC分类号： G05F5/00 ,  H03K5/153 ,  G06F1/26

CPC分类号： G06F1/28 ,  A61F2/14 ,  A61N1/36046 ,  A61N1/3787 ,  G06F1/3296 ,  G11C5/143 ,  G11C11/4125 ,  Y02D10/172

摘要： Power monitoring circuitry is provided, comprising a capacitor configured to receive a current, so as to charge the capacitor and a switching device, connected to the capacitor. The switching device is configured to periodically discharge the capacitor in response to receipt of a clock signal from a circuit being monitored. The power monitoring circuitry also comprises a comparator, configured to perform a comparison of a voltage developed by the capacitor with a threshold voltage, and to output an indication of a change in power supplied to the circuit in response to the comparison. Other embodiments are also described.

摘要翻译： 提供了功率监控电路，其包括被配置为接收电流的电容器，以便连接到电容器的电容器和开关装置充电。 开关装置被配置为响应于从被监视的电路接收到时钟信号而周期性地对电容器进行放电。 功率监视电路还包括比较器，其被配置为执行由电容器产生的电压与阈值电压的比较，并且响应于比较输出提供给电路的功率变化的指示。 还描述了其它实施例。

公开(公告)号：US08706243B2

公开(公告)日：2014-04-22

申请号：US13437310

申请日：2012-04-02

申请人： Ra'anan Gefen ,  Yossi Gross ,  Tuvia Liran ,  Shai Vaingast

发明人： Ra'anan Gefen ,  Yossi Gross ,  Tuvia Liran ,  Shai Vaingast

IPC分类号： A61N1/05

CPC分类号： A61N1/3787 ,  A61F2/14 ,  A61F2/148 ,  A61F2/1624 ,  A61F2/1659 ,  A61F9/00 ,  A61F9/008 ,  A61N1/0543 ,  A61N1/36046 ,  A61N1/37217

摘要： Apparatus for use with an external non-visible light source is provided. The apparatus comprises an intraocular device configured for implantation in a human eye, and comprising an energy receiver. The energy receiver is configured to receive light emitted from the external non-visible light source, and extract energy from the emitted light for powering the intraocular device. The intraocular device is configured to regulate a parameter of operation of the intraocular device based on a modulation of the light emitted by the external non-visible light source and received by the energy receiver. Other embodiments are also described.

摘要翻译： 提供了与外部不可见光源一起使用的装置。 该装置包括配置用于植入人眼中并包括能量接收器的眼内装置。 能量接收器被配置为接收从外部不可见光源发射的光，并且从发射的光提取能量以为眼内装置供电。 眼内装置被配置为基于由外部不可见光源发射并由能量接收器接收的光的调制来调节眼内装置的操作参数。 还描述了其它实施例。

公开(公告)号：US20120259410A1

公开(公告)日：2012-10-11

申请号：US13437310

申请日：2012-04-02

申请人： Ra'anan Gefen ,  Yossi Gross ,  Tuvia Liran ,  Shai Vaingast

发明人： Ra'anan Gefen ,  Yossi Gross ,  Tuvia Liran ,  Shai Vaingast

IPC分类号： A61F2/16

CPC分类号： A61N1/3787 ,  A61F2/14 ,  A61F2/148 ,  A61F2/1624 ,  A61F2/1659 ,  A61F9/00 ,  A61F9/008 ,  A61N1/0543 ,  A61N1/36046 ,  A61N1/37217

摘要： Apparatus for use with an external non-visible light source is provided. The apparatus comprises an intraocular device configured for implantation in a human eye, and comprising an energy receiver. The energy receiver is configured to receive light emitted from the external non-visible light source, and extract energy from the emitted light for powering the intraocular device. The intraocular device is configured to regulate a parameter of operation of the intraocular device based on a modulation of the light emitted by the external non-visible light source and received by the energy receiver. Other embodiments are also described.

摘要翻译： 提供了与外部不可见光源一起使用的装置。 该装置包括配置用于植入人眼中并包括能量接收器的眼内装置。 能量接收器被配置为接收从外部不可见光源发射的光，并且从发射的光提取能量以为眼内装置供电。 眼内装置被配置为基于由外部不可见光源发射并由能量接收器接收的光的调制来调节眼内装置的操作参数。 还描述了其它实施例。