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1. 发明授权

US07633354B2 Multistage tuning-tolerant equalizer filter with improved detection mechanisms for lower and higher frequency gain loops 有权
标题翻译：多级调谐容限均衡器滤波器，具有改进的检测机制，用于较低和较高频率增益环路
公开(公告)号：US07633354B2
公开(公告)日：2009-12-15
申请号：US11991640
申请日：2006-08-31
申请人： Maarten Kuijk , Xavier Maillard , Koen Van den Brande
发明人： Maarten Kuijk , Xavier Maillard , Koen Van den Brande
IPC分类号： H03H7/30 , H03F3/45
CPC分类号： H04L25/03878
摘要： The present invention provides an equalizer filter for compensating a received distorted signal for frequency dependent signal modifications introduced by a transmission channel, the received signal having an amplitude. The filter comprises at least one amplifying compensation stage having a gain and a saturation level, at least one limiting amplifier, and gain control means for controlling the gain of the at least one amplifying compensation stage, the gain control means comprising at least one comparator circuit comparing filtered input and output signals of the limiting amplifier, the at least one comparator circuit comprising a bias current source. The bias current source is adapted to deliver a variable current.
摘要翻译：本发明提供了一种均衡器滤波器，用于补偿由传输信道引入的频率相关信号修改的接收失真信号，所述接收信号具有振幅。滤波器包括至少一个具有增益和饱和电平的放大补偿级，至少一个限幅放大器和用于控制至少一个放大补偿级的增益的增益控制装置，该增益控制装置包括至少一个比较器电路比较限幅放大器的滤波输入和输出信号，所述至少一个比较器电路包括偏置电流源。偏置电流源适于传递可变电流。

2. 发明申请

US20060182171A1 Multistage tuning-tolerant equalizer filter 有权
标题翻译：多级调谐容差均衡器滤波器
公开(公告)号：US20060182171A1
公开(公告)日：2006-08-17
申请号：US11346226
申请日：2006-02-03
申请人： Maarten Kuijk , Xavier Maillard
发明人： Maarten Kuijk , Xavier Maillard
IPC分类号： H03H7/30
CPC分类号： H04L25/03878 , H04B3/141 , H04B3/145
摘要： A multistage equalizer filter (100) is presented for compensating a received distorted signal having an amplitude for frequency dependent signal modifications introduced by a transmission channel. The filter (100) comprises at least one amplifying compensation stage (21a, 21b, 21c, 21d) having a gain and a saturation level, the gain being monotonically rising for at least a last decade in frequency below an upper data frequency of the received signal, and a gain control means (125) for controlling the gain of the amplifying compensation stage (21a, 21b, 21c, 21d) such that the amplitude of the received signal amplified in the at least one amplifying compensation stage (21a, 21b, 21c, 21d) remains below the saturation level of the amplifying compensation stage (21a, 21b, 21c, 21d). The gain may be regulated by separately regulating low frequency gain, mid-frequency gain and higher frequency gain for each of the at least one amplifying compensation stages (21a, 21b, 21c, 21d).
摘要翻译：提出了一种多级均衡器滤波器（100），用于补偿由传输信道引入的频率相关信号修改的幅度的接收失真信号。滤波器（100）包括具有增益和饱和电平的至少一个放大补偿级（21a，21b，21c，21d），所述增益在高于数据的频率下至少最近十年的单调递增接收信号的频率，以及用于控制放大补偿级（21a，21b，21c，21d）的增益的增益控制装置（125），使得在至少一个放大补偿级（21a，21b，21c，21d）保持在放大补偿级（21a，21b，21c，21d）的饱和电平以下。可以通过分别调节至少一个放大补偿级（21a，21b，21c，21d）中的每一个的低频增益，中频增益和较高频率增益来调节增益。

3. 发明授权

US07564899B2 Multistage tuning-tolerant equalizer filter 有权
标题翻译：多级调谐容差均衡器滤波器
公开(公告)号：US07564899B2
公开(公告)日：2009-07-21
申请号：US11346226
申请日：2006-02-03
申请人： Maarten Kuijk , Xavier Maillard
发明人： Maarten Kuijk , Xavier Maillard
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159 , H03G5/00
CPC分类号： H04L25/03878 , H04B3/141 , H04B3/145
摘要： A multistage equalizer filter for compensating a received distorted signal having an amplitude for frequency dependent signal modifications introduced by a transmission channel includes at least one amplifying compensation stage having a gain and a saturation level, the gain being monotonically rising for at least a last decade in frequency below an upper data frequency of the received signal, and a gain control device for controlling the gain of the amplifying compensation stage such that the amplitude of the received signal amplified in the at least one amplifying compensation stage remains below the saturation level of the amplifying compensation stage. The gain may be regulated by separately regulating low frequency gain, mid-frequency gain and higher frequency gain for each of the at least one amplifying compensation stages.
摘要翻译：用于补偿具有由传输通道引入的频率相关信号修改的幅度的接收失真信号的多级均衡器滤波器包括至少一个具有增益和饱和电平的放大补偿级，该增益在至少最近十年内单调上升频率低于接收信号的高数据频率;以及增益控制装置，用于控制放大补偿级的增益，使得在至少一个放大补偿级中放大的接收信号的幅度保持在放大的饱和电平以下补偿阶段。可以通过分别调节至少一个放大补偿级中的每一个的低频增益，中频增益和较高频率增益来调节增益。

4. 发明授权

US07894515B2 Low voltage multistage adaptive equalizer 有权
标题翻译：低压多级自适应均衡器
公开(公告)号：US07894515B2
公开(公告)日：2011-02-22
申请号：US10545199
申请日：2004-02-13
申请人： Maarten Kuijk , Xavier Maillard
发明人： Maarten Kuijk , Xavier Maillard
IPC分类号： H03H7/30 , H03K5/159
CPC分类号： H04L25/03885
摘要： The present invention is related to an adaptive equalizer comprising multiple tuning circuits that generate tuning signals. Each tuning signal can typically induce higher frequency gain up to a limited level, e.g. +5 dB, at the upper data frequency for compensation of high frequency losses in the connected transmission channel. Several tuning signals can tune one adaptive amplifying compensation stage. In its adaptive amplifying compensation stage the tuning signal can generate through its tuning function, non-linear small-signal and large-signal transfer behavior. However, by limiting the amount of higher frequency gain to maximum +8 dB per tuning function, and by having only one tuning function active at a time the resulting deterministic fitter remains tolerable. Several adaptive amplifying compensation stages introducing non-linear effects in the compensation behavior and their tuning functions are disclosed. Especially at low power supply voltage the merits of the present invention become apparent.
摘要翻译：本发明涉及一种包括产生调谐信号的多个调谐电路的自适应均衡器。每个调谐信号通常可以引起更高的频率增益，达到有限的水平，例如。 +5 dB，用于补偿连接传输通道高频损耗的较高数据频率。几个调谐信号可调谐一个自适应放大补偿级。在其自适应放大补偿级中，调谐信号可以通过其调谐功能，非线性小信号和大信号传输行为产生。然而，通过将每个调谐功能的较高频率增益的量限制为最大+8 dB，并且一次只有一个调谐功能有效，所得到的确定性钳位器仍然是可容忍的。公开了在补偿行为及其调谐功能中引入非线性效应的几个自适应放大补偿级。特别是在低电源电压下，本发明的优点变得显而易见。

5. 发明申请

US20090160522A1 DC RESTORATION CIRCUIT ALLOWING SPARSE DATA PATTERNS 审中-公开
标题翻译：直流恢复电路允许微小的数据模式
公开(公告)号：US20090160522A1
公开(公告)日：2009-06-25
申请号：US12338594
申请日：2008-12-18
申请人： Koen VAN DEN BRANDE , Maarten Kuijk , Xavier Maillard
发明人： Koen VAN DEN BRANDE , Maarten Kuijk , Xavier Maillard
IPC分类号： H03L5/00
CPC分类号： H04L25/06
摘要： The present invention provides a device for restoring a DC component in a differential digital data stream. The device comprises a first and second peak detector for detecting peaks in the differential digital data stream, a memory element for storing an average of the first and second detected peak signals during rich data patterns, an error signal selector for error signal selection, and a regulator for negative feedback of a selected error signal. The selected error signal is either the average of the detected peak signals stored on the memory element minus the signal at the output of the first peak detector, or the signal at the output of the second peak detector minus the average of the detected peak signals stored on the memory element.
摘要翻译：本发明提供一种用于恢复差分数字数据流中的DC分量的装置。该装置包括用于检测差分数字数据流中的峰值的第一和第二峰值检测器，用于在富数据模式期间存储第一和第二检测到的峰值信号的平均值的存储元件，用于误差信号选择的误差信号选择器，以及调节器用于所选误差信号的负反馈。选择的误差信号是存储在存储器元件上的检测到的峰值信号的平均值减去第一峰值检测器的输出处的信号，或者在第二峰值检测器的输出处的信号减去存储的检测到的峰值信号的平均值在内存元素上。

6. 发明申请

US20060140262A1 Low voltage multistage adaptive equalizer 有权
标题翻译：低压多级自适应均衡器
公开(公告)号：US20060140262A1
公开(公告)日：2006-06-29
申请号：US10545199
申请日：2004-02-13
申请人： Maarten Kuijk , Xavier Maillard
发明人： Maarten Kuijk , Xavier Maillard
IPC分类号： H03H7/30
CPC分类号： H04L25/03885
摘要： The present invention is related to an adaptive equalizer comprising multiple tuning circuits that generate tuning signals. Each tuning signal can typically induce higher frequency gain up to a limited level, e.g. +5 dB, at the upper data frequency for compensation of high frequency losses in the connected transmission channel. Several tuning signals can tune one adaptive amplifying compensation stage. In its adaptive amplifying compensation stage the tuning signal can generate through its tuning function, non-linear small-signal and large-signal transfer behaviour. However, by limiting the amount of higher frequency gain to maximum +8 dB per tuning function, and by having only one tuning function active at a time the resulting deterministic fitter remains tolerable. Several adaptive amplifying compensation stages introducing non-linear effects in the compensation behaviour and their tuning functions are disclosed. Especially at low power supply voltage the merits of the present invention become apparent.
摘要翻译：本发明涉及一种包括产生调谐信号的多个调谐电路的自适应均衡器。每个调谐信号通常可以引起更高的频率增益，达到有限的水平，例如。 +5 dB，用于补偿连接传输通道高频损耗的较高数据频率。几个调谐信号可调谐一个自适应放大补偿级。在其自适应放大补偿级中，调谐信号可以通过其调谐功能，非线性小信号和大信号传输行为产生。然而，通过将每个调谐功能的较高频率增益的量限制为最大+8 dB，并且一次只有一个调谐功能有效，所得到的确定性钳位器仍然是可容忍的。公开了在补偿行为及其调谐功能中引入非线性效应的几个自适应放大补偿级。特别是在低电源电压下，本发明的优点变得显而易见。

7. 发明申请

US20060013295A1 Multistage tuning-tolerant equalizer filter 审中-公开
标题翻译：多级调谐容差均衡器滤波器
公开(公告)号：US20060013295A1
公开(公告)日：2006-01-19
申请号：US11177339
申请日：2005-07-11
申请人： Maarten Kuijk , Xavier Maillard
发明人： Maarten Kuijk , Xavier Maillard
IPC分类号： H03H7/30
CPC分类号： H04B3/143
摘要： A multistage equalizer filter is presented that, in case of over-compensation leads to an acceptable low level of additional jitter. It has non-saturating data-nodes and output nodes in each of the amplifying compensation stages, even in the envisaged situations of overcompensation where acceptable additional jitter is specified. Up to an upper data frequency, the transfer function of each of the amplifying compensation stages is increasing at least for the last frequency decade. A special embodiment for implementing these conditions uses replica biasing allowing process variations and temperature variations to be taken into account. An auto-gain structure increases the robustness even further, and especially an auto-gain function driving the gain of all amplifying compensation stages in parallel is advised to be implemented. In this way, several types of equalizer filters can be designed, including fixed, programmable and self-adaptive ones, featuring the tuning tolerance due to allowed overcompensation.
摘要翻译：提出了一种多级均衡器滤波器，在过度补偿的情况下会导致可接受的低水平附加抖动。即使在规定了可接受的附加抖动的过度补偿的情况下，它也在每个放大补偿级中都具有非饱和数据节点和输出节点。达到较高的数据频率，每个放大补偿级的传递函数至少在最后的频率十年内增加。用于实现这些条件的特殊实施例使用复制偏移来允许考虑到过程变化和温度变化。建议自动增益结构进一步提高鲁棒性，特别是实现驱动所有放大补偿级并联增益的自动增益功能。以这种方式，可以设计几种类型的均衡滤波器，包括固定，可编程和自适应滤波器，具有由于允许的过补偿引起的调谐容限。

8. 发明授权

US08488685B2 Active bidirectional splitter for single ended media 有权
标题翻译：用于单端介质的主动双向分路器
公开(公告)号：US08488685B2
公开(公告)日：2013-07-16
申请号：US12748654
申请日：2010-03-29
申请人： Xavier Maillard , Maarten Kuijk
发明人： Xavier Maillard , Maarten Kuijk
IPC分类号： H04B3/00
CPC分类号： H04B1/58 , H04L5/1423 , H04L25/0278
摘要： An active bidirectional splitter (212) for transmission and reception of data signals over a single ended transmission medium (105) comprises an input port (150), an output port (152) and a differential combined input/output port (151), a first differential output driver (115) for receiving an input signal (144) from the input port (150) and transmitting this signal to the differential input/output port (151), a second differential output driver (116) for receiving the input signal (144) from the input port (150), a first averaging circuit (121) for averaging the differential signal (146, 147) at the differential input/output port (151), a second averaging circuit (120) for averaging the differential signal (144, 145) at the output of the second differential output driver (116), and a receiver (117) for receiving both averaged signals (118, 119) from the first averaging circuit (121) and the second averaging circuit (120) and for generating therefrom an output signal on the output port (152).
摘要翻译：用于通过单端传输介质（105）传输和接收数据信号的主动双向分离器（212）包括输入端口（150），输出端口（152）和差分组合输入/输出端口（151），第一差分输出驱动器（115），用于从输入端口（150）接收输入信号（144）并将该信号发送到差分输入/输出端口（151）;第二差分输出驱动器（116），用于接收输入信号（144），用于对差分输入/输出端口（151）处的差分信号（146,147）进行平均的第一平均电路（121），用于对差分输入端口（150）进行平均的第二平均电路（120）在第二差分输出驱动器（116）的输出处的信号（144,145）和接收器（117），用于从第一平均电路（121）和第二平均电路（120）接收两个平均的信号（118,119））并且用于从其产生输出端口上的输出信号（152）。

9. 发明申请

US20090128239A1 Multistage Tuning-Tolerant Equalizer Filter with Improved Detection Mechanisms for Lower and Higher Frequency Gain Loops 有权
标题翻译：多级调谐耐受均衡器滤波器，具有改进的检测机制，用于较低和较高频率增益环路
公开(公告)号：US20090128239A1
公开(公告)日：2009-05-21
申请号：US11991640
申请日：2006-08-31
申请人： Maarten Kuijk , Xavier Maillard , Koen Van den Brande
发明人： Maarten Kuijk , Xavier Maillard , Koen Van den Brande
IPC分类号： H03F3/45
CPC分类号： H04L25/03878
摘要： The present invention provides an equalizer filter for compensating a received distorted signal for frequency dependent signal modifications introduced by a transmission channel, the received signal having an amplitude. The filter comprises at least one amplifying compensation stage having a gain and a saturation level, at least one limiting amplifier, and gain control means for controlling the gain of the at least one amplifying compensation stage, the gain control means comprising at least one comparator circuit comparing filtered input and output signals of the limiting amplifier, the at least one comparator circuit comprising a bias current source. The bias current source is adapted to deliver a variable current.
摘要翻译：本发明提供了一种均衡器滤波器，用于补偿由传输信道引入的频率相关信号修改的接收失真信号，所述接收信号具有振幅。滤波器包括至少一个具有增益和饱和电平的放大补偿级，至少一个限幅放大器和用于控制至少一个放大补偿级的增益的增益控制装置，该增益控制装置包括至少一个比较器电路比较限幅放大器的滤波输入和输出信号，所述至少一个比较器电路包括偏置电流源。偏置电流源适于传递可变电流。

10. 发明申请

US20110058153A1 TOF Range Finding With Background Radiation Suppression 有权
标题翻译： TOF范围寻找与背景辐射抑制
公开(公告)号：US20110058153A1
公开(公告)日：2011-03-10
申请号：US12991744
申请日：2009-05-11
申请人： Daniel Van Nieuwenhove , Ward Van Der Tempel , Maarten Kuijk
发明人： Daniel Van Nieuwenhove , Ward Van Der Tempel , Maarten Kuijk
IPC分类号： G01C3/08 , G01J5/02
CPC分类号： G01S17/08 , G01S7/4876 , H04N5/35572
摘要： A method for measuring time of flight of radiation includes emitting modulated radiation (51) in response to a first modulation signal, projecting the modulated radiation (51) onto a scene (55), and receiving radiation, the received radiation including at least modulated radiation reflected by the scene (55). The received radiation (26, 27) is converted into a radiation induced electrical signal. The radiation induced electrical signal is mixed with a second modulation signal, thus generating a mixed signal, which is integrated, thus generating an integrated signal. When the integrated signal exceeds a threshold value (Vref), charge is injected into the integrated signal. The method includes applying changes to the first and/or second modulation signal at one or more moments in time, and measuring the integrated signal at one or more moments in time, thus obtaining at least one TOF pair difference signal (62). The measuring includes using a single detector node (38) and associated memory element (25), to obtain a TOF pair difference signal (62). The method furthermore includes using one or more TOF pair difference signals to determine time of flight of radiation.
摘要翻译：用于测量辐射时间的方法包括响应于第一调制信号发射调制辐射（51），将经调制的辐射（51）投射到场景（55）上，并且接收辐射，所接收的辐射包括至少调制辐射反映在现场（55）。接收的辐射（26,27）被转换成辐射感应的电信号。辐射感应电信号与第二调制信号混合，从而产生一个混合信号，其被积分，从而产生积分信号。当积分信号超过阈值（Vref）时，电荷被注入到积分信号中。该方法包括在一个或多个时刻对第一和/或第二调制信号进行改变，并在一个或多个时刻测量积分信号，从而获得至少一个TOF对差分信号（62）。测量包括使用单个检测器节点（38）和相关联的存储器元件（25）来获得TOF对差值信号（62）。该方法还包括使用一个或多个TOF对差信号来确定辐射的飞行时间。

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