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1. 发明授权

US08238761B2 Optical receiver with a calibration mode 有权
标题翻译：具有校准模式的光接收机
公开(公告)号：US08238761B2
公开(公告)日：2012-08-07
申请号：US12633934
申请日：2009-12-09
申请人： Frankie Y. Liu , Dinesh D. Patil , Ronald Ho , Elad Alon
发明人： Frankie Y. Liu , Dinesh D. Patil , Ronald Ho , Elad Alon
IPC分类号： H04B10/06
CPC分类号： H04B10/6911
摘要： An optical receiver is described. This optical receiver includes a digital feedback circuit that biases a front-end circuit, which receives an optical signal, so that an analog electrical signal output by the front-end circuit is calibrated relative to a reference voltage corresponding to a decision threshold of a digital slicer in the optical receiver. In particular, during a calibration mode the feedback circuit may determine and store a calibration value that calibrates the analog electrical signal relative to the reference voltage. Then, during a normal operating mode, the feedback circuit may output a current corresponding to the stored calibration value that specifies a bias point of the front-end circuit.
摘要翻译：描述了光接收机。该光接收器包括数字反馈电路，该数字反馈电路偏置接收光信号的前端电路，使得由前端电路输出的模拟电信号相对于对应于数字的判定阈值的参考电压进行校准切片机在光接收机。特别地，在校准模式期间，反馈电路可以确定并存储校准相对于参考电压的模拟电信号的校准值。然后，在正常操作模式期间，反馈电路可输出对应于存储的校准值的电流，该校准值指定前端电路的偏置点。

2. 发明申请

US20110135315A1 OPTICAL RECEIVER WITH A CALIBRATION MODE 有权
标题翻译：具有校准模式的光接收器
公开(公告)号：US20110135315A1
公开(公告)日：2011-06-09
申请号：US12633934
申请日：2009-12-09
申请人： Frankie Y. Liu , Dinesh D. Patil , Ronald Ho , Elad Alon
发明人： Frankie Y. Liu , Dinesh D. Patil , Ronald Ho , Elad Alon
IPC分类号： H04B10/00 , H04B10/06
CPC分类号： H04B10/6911
摘要： An optical receiver is described. This optical receiver includes a digital feedback circuit that biases a front-end circuit, which receives an optical signal, so that an analog electrical signal output by the front-end circuit is calibrated relative to a reference voltage corresponding to a decision threshold of a digital slicer in the optical receiver. In particular, during a calibration mode the feedback circuit may determine and store a calibration value that calibrates the analog electrical signal relative to the reference voltage. Then, during a normal operating mode, the feedback circuit may output a current corresponding to the stored calibration value that specifies a bias point of the front-end circuit.
摘要翻译：描述了光接收机。该光接收器包括数字反馈电路，该数字反馈电路偏置接收光信号的前端电路，使得由前端电路输出的模拟电信号相对于对应于数字的判定阈值的参考电压进行校准切片机在光接收机。特别地，在校准模式期间，反馈电路可以确定并存储校准相对于参考电压的模拟电信号的校准值。然后，在正常操作模式期间，反馈电路可输出对应于存储的校准值的电流，该校准值指定前端电路的偏置点。

3. 发明授权

US09706489B2 Systems and methods for providing wireless asymmetric network architectures of wireless devices with anti-collision features 有权
公开(公告)号：US09706489B2
公开(公告)日：2017-07-11
申请号：US14607047
申请日：2015-01-27
申请人： Vivek Subramanian , Elad Alon , Vikram Pavate
发明人： Vivek Subramanian , Elad Alon , Vikram Pavate
IPC分类号： H04W52/02 , H04W28/04 , H04L1/00 , H04W84/18
CPC分类号： H04W52/02 , H04L1/00 , H04L1/1829 , H04W74/085 , H04W84/18 , Y02D70/1224 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/164 , Y02D70/22
摘要： Systems and methods for implementing anti-collision features while providing a wireless asymmetric network are disclosed herein. In one embodiment, a system includes a hub having a wireless control device that is configured to control communications in the wireless asymmetric network architecture and nodes each having a wireless device with a transmitter and a receiver to enable bi-directional communications with the wireless control device of the hub. The wireless control device of the hub is configured to detect a communication from a first node of the nodes, determine whether at least a portion of the communication is unintelligible to circuitry of the hub or circuitry coupled to the hub, and determine whether a collision of communications transmitting at approximately the same time from the first node and a second node has likely occurred when the at least portion of the communication is unintelligible.

4. 发明授权

US08183887B2 High speed signaling system with adaptive transmit pre-emphasis 有权
标题翻译：具有自适应发送预加重的高速信号系统
公开(公告)号：US08183887B2
公开(公告)日：2012-05-22
申请号：US12693285
申请日：2010-01-25
申请人： Vladimir M. Stojanovic , Andrew C. C. Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
发明人： Vladimir M. Stojanovic , Andrew C. C. Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
IPC分类号： H03K19/0175
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.
摘要翻译：具有自适应发送预加重的高速信号系统。发射电路具有多个输出驱动器，以将第一信号输出到信号路径上。接收电路被耦合以经由信号路径接收第一信号并被配置为生成第一信号是否超过阈值电平的指示。第一阈值控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整阈值电平。驱动强度控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整多个输出驱动器中的至少一个输出驱动器的驱动强度。

5. 发明授权

US07199615B2 High speed signaling system with adaptive transmit pre-emphasis and reflection cancellation 有权
标题翻译：具有自适应发射预加重和反射消除的高速信号系统
公开(公告)号：US07199615B2
公开(公告)日：2007-04-03
申请号：US11386984
申请日：2006-03-21
申请人： Vladimir M. Stojanovic , Andrew Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
发明人： Vladimir M. Stojanovic , Andrew Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
IPC分类号： H03K19/0175
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A signaling system having an equalizing transmitter and equalizing receiver. The equalizing transmitter transmits a signal to a receive circuit. A first sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a first threshold, and a second sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a second threshold. A drive strength of the equalizing transmitter and a drive strength of an equalizing signal driver within the equalizer are adjusted based, at least in part, on whether the first signal exceeds the first and second thresholds.
摘要翻译：一种具有均衡发射机和均衡接收机的信令系统。均衡发射机将信号发送到接收电路。均衡接收器内的第一采样电路对信号进行采样以确定信号是否超过第一阈值，并且均衡接收器内的第二采样电路对信号进行采样以确定信号是否超过第二阈值。至少部分地基于第一信号是否超过第一和第二阈值来调整均衡器的驱动强度和均衡器内均衡信号驱动器的驱动强度。

6. 发明授权

US07194155B1 Adaptive control for mitigating interference in a multimode transmission medium 有权
标题翻译：用于减轻多模传输介质中的干扰的自适应控制
公开(公告)号：US07194155B1
公开(公告)日：2007-03-20
申请号：US11201404
申请日：2005-08-10
申请人： Joseph M. Kahn , Mark A. Horowitz , Elad Alon , Vladimir M. Stojanovic
发明人： Joseph M. Kahn , Mark A. Horowitz , Elad Alon , Vladimir M. Stojanovic
IPC分类号： G02B6/26
CPC分类号： H04B10/2581
摘要： Optical data is processed and transmitted in a multimode transmission medium in a manner that facilitates the mitigation of interference such as that often referred to as intersymbol interference (ISI). According to an example embodiment of the present invention, a spatial light modulator is controlled to adaptively spatially filter light to be passed on a multimode transmission medium such as a multimode optical fiber.
摘要翻译：在多模传输介质中处理和传输光数据，以便于缓解诸如通常称为符号间干扰（ISI）的干扰。根据本发明的示例性实施例，控制空间光调制器以自适应地空间滤波要在诸如多模光纤的多模传输介质上传递的光。

7. 发明授权

US06642760B1 Apparatus and method for a digital delay locked loop 有权
标题翻译：数字延迟锁定环的装置和方法
公开(公告)号：US06642760B1
公开(公告)日：2003-11-04
申请号：US10112963
申请日：2002-03-29
申请人： Elad Alon , Scott Best
发明人： Elad Alon , Scott Best
IPC分类号： H03L706
CPC分类号： H03K3/037 , H03K3/0375 , H03L7/0802 , H03L7/0814
摘要： A circuit and method is shown for digital control of delay lines in a delay locked loop (DLL) system. A pair of multiplexors (MUXes) is used to select output taps from a pair of complementary delay lines that delay a reference clock signal in order to lock onto a received clock signal. An output tap from one delay line is used to produce a rising edge in an output clock signal while a corresponding tap in the complementary delay line is used to produce a falling edge in the output signal in order to correct for distortion. The MUXes are controlled based on a phase difference detected between the received clock signal and a feedback clock corresponding to the output clock signal. Another aspect of the present invention provides for generation of a quadrature clock by interpolating between the rising and falling edges selected for the output clock signal. Still another aspect of the present invention provides for selectively disabling unused elements of the delay lines to reduce power consumption.
摘要翻译：示出了延迟锁定环（DLL）系统中的延迟线的数字控制的电路和方法。一对多路复用器（MUX）用于从延迟参考时钟信号的一对互补延迟线中选择输出抽头，以便锁定到所接收的时钟信号上。来自一个延迟线的输出抽头用于产生输出时钟信号中的上升沿，而互补延迟线中的相应抽头用于在输出信号中产生下降沿以便校正失真。基于在接收的时钟信号和对应于输出时钟信号的反馈时钟之间检测到的相位差来控制MUX。本发明的另一方面提供了通过在为输出时钟信号选择的上升沿和下降沿之间进行内插来产生正交时钟。本发明的另一方面提供了选择性地禁用延迟线的未使用元件以降低功耗。

8. 发明申请

US20160219516A1 SYSTEMS AND METHODS FOR PROVIDING WIRELESS ASYMMETRIC NETWORK ARCHITECTURES OF WIRELESS DEVICES WITH POWER MANAGEMENT FEATURES 有权
标题翻译：提供具有电源管理功能的无线设备的无线非对称网络架构的系统和方法
公开(公告)号：US20160219516A1
公开(公告)日：2016-07-28
申请号：US14607048
申请日：2015-01-27
申请人： Vivek Subramanian , Elad Alon , Vikram Pavate
发明人： Vivek Subramanian , Elad Alon , Vikram Pavate
IPC分类号： H04W52/02 , H04L5/14 , H04L12/44
CPC分类号： H04W52/0219 , H04L12/44 , H04L2012/445 , Y02D70/00 , Y02D70/1224 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/164 , Y02D70/22
摘要： Systems and methods for implementing power management features while providing a wireless asymmetric network are disclosed herein. In one embodiment, a system includes a hub having a wireless control device that is configured to control communications and power consumption in the wireless asymmetric network architecture and sensor nodes each having at least one sensor and a wireless device with a transmitter and a receiver to enable bi-directional communications with the wireless control device of the hub. The wireless control device is configured to determine a scheduled timing of operating each sensor node during a first time period that is close in time with respect to a transmit window of the transmitter and during a second time period that is close in time with respect to a receive window of the receiver for each wireless device to reduce power consumption of the wireless devices of the sensor nodes.
摘要翻译：本文公开了在提供无线非对称网络的同时实现电力管理特征的系统和方法。在一个实施例中，系统包括具有无线控制设备的集线器，无线控制设备被配置为控制无线非对称网络架构中的通信和功耗，每个传感器节点具有至少一个传感器和具有发射机和接收机的无线设备，以使能与集线器的无线控制设备的双向通信。无线控制设备被配置为确定在相对于发射机的发射窗口在时间上接近的第一时间段期间以及在相对于发射机的时间接近的第二时间段期间操作每个传感器节点的调度定时接收每个无线设备的接收窗口，以减少传感器节点的无线设备的功耗。

9. 发明授权

US08564328B2 High speed signaling system with adaptive transmit pre-emphasis 有权
公开(公告)号：US08564328B2
公开(公告)日：2013-10-22
申请号：US13476247
申请日：2012-05-21
申请人： Vladimir M. Stojanovic , Andrew C. C. Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
发明人： Vladimir M. Stojanovic , Andrew C. C. Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
IPC分类号： H03K19/0175
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.

10. 发明申请

US20100117706A1 HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS 有权
标题翻译：具有自适应发射预报功能的高速信号系统
公开(公告)号：US20100117706A1
公开(公告)日：2010-05-13
申请号：US12693285
申请日：2010-01-25
申请人： Vladimir M. Stojanovic , Andrew C. C. Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
发明人： Vladimir M. Stojanovic , Andrew C. C. Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
IPC分类号： H03L5/00
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.
摘要翻译：具有自适应发送预加重的高速信号系统。发射电路具有多个输出驱动器，以将第一信号输出到信号路径上。接收电路被耦合以经由信号路径接收第一信号并被配置为生成第一信号是否超过阈值电平的指示。第一阈值控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整阈值电平。驱动强度控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整多个输出驱动器中的至少一个输出驱动器的驱动强度。

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