公开(公告)号：US06678862B1

公开(公告)日：2004-01-13

申请号：US09806585

申请日：2001-03-30

申请人： Johannes Wilhelmus Maria Bergmans ,  Willem Marie Julia Marcel Coene ,  Rob Otte ,  Simon Derek Bramwell

发明人： Johannes Wilhelmus Maria Bergmans ,  Willem Marie Julia Marcel Coene ,  Rob Otte ,  Simon Derek Bramwell

IPC分类号： H03M1303

CPC分类号： H03M13/6343 ,  G11B20/00 ,  H03M13/015 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/4107 ,  H03M13/4169

摘要： A partial response maximum likelihood (PRML) bit detection apparatus is disclosed for deriving a bit sequence (xk) from an input information signal. The apparatus comprises input means for receiving the input information signal. The apparatus further comprises sampling means for sampling the input information signal at sampling instants so as to obtain samples (zk) of the information signal at said sampling instants. The apparatus also comprises calculating means (50, 70) for (a) calculating (50) at a sampling instant ti for one or more of a plurality of states sj (Sa, Sb, Sc) at said sampling instant, an optimum path metric value PM(sj,ti) and for determining for said one or more states a best predecessor state at the directly preceding sampling instant ti−1, a state at said sampling instant identifying a sequence of n subsequent bits. The apparatus further comprises calculating means for (b) establishing (70) the best path from the state at the said sampling instant ti having the lowest optimum path metric value, back in time towards the sampling instant ti−N via best predecessor states, established earlier for earlier sampling instants, to establish an optimum state at said sampling instant ti−N. The apparatus further comprises the calculating means for (c) outputting at least one bit (xk−MB−1) of said n bits of the sequence of bits corresponding to said established optimum state at said sampling instant ti−N. The steps (a) to (c) are repeated for a subsequent sampling instant ti+1. The apparatus is characterized in that mutually complementary sequences of n subsequent bits are allocated to the same state.

摘要翻译： 公开了用于从输入信息信号导出比特序列（xk）的部分响应最大似然（PRML）比特检测装置。 该装置包括用于接收输入信息信号的输入装置。 该装置还包括用于在采样时刻对输入信息信号进行采样的采样装置，以便在所述采样时刻获得信息信号的采样（zk）。 所述装置还包括计算装置（50,70），用于（a）在所述采样时刻的多个状态sj（Sa，Sb，Sc）中的一个或多个的采样时刻ti计算（50）最佳路径度量 值PM（sj，ti），并且用于为所述一个或多个状态确定在直接在前的采样时刻ti-1处的最佳前置状态，所述采样时刻处的状态识别n个后续位的序列。 该装置还包括计算装置，用于（b）建立（70）从具有最低最优路径度量值的所述采样时刻ti的状态建立（70）最佳路径，经过最佳前置状态向时间向采样时刻ti-N建立 较早的采样时刻，以在所述采样时刻ti-N建立最佳状态。 该装置还包括计算装置，用于（c）在所述采样时刻ti-N处输出与所述建立的最佳状态相对应的比特序列的所述n比特的至少一个比特（xk-MB-1）。 对于随后的采样时刻ti + 1重复步骤（a）至（c）。 该装置的特征在于将n个后续比特的互补序列分配给相同的状态。

公开(公告)号：US06980606B2

公开(公告)日：2005-12-27

申请号：US09969002

申请日：2001-10-02

申请人： Rob Otte ,  Willem Marie Julia Marcel Coene ,  Johannes Wilhelmus Maria Bergmans

发明人： Rob Otte ,  Willem Marie Julia Marcel Coene ,  Johannes Wilhelmus Maria Bergmans

IPC分类号： H03M7/14 ,  H03M13/00 ,  H03M13/41 ,  H04L1/00 ,  H03D1/00

CPC分类号： H04L1/0054

摘要： A branch metric calculation unit calculates a set of branch metric values for subsequent samples of the sampled input signal. Each of the set of branch metric values is an indication for the likelihood that an amplitude value of a sample corresponds to a particular state, a state being defined as a sequence of n-ary digits. A delay unit, which forms part of a delay chain of delay units, includes a first delay unit of the delay chain which is coupled to the branch metric calculation unit. A path metric calculation chain of path metric calculation units includes one or more path metric calculation units having first inputs coupled to a delay unit and second inputs coupled to a preceding path metric calculation unit. The path metric calculation unit calculates the path metric values from the branch metric values, a path metric value being on indication for the likelihood that a sequence of samples corresponds to a sequence of states.

摘要翻译： 支路量度计算单元计算采样输入信号的后续采样的一组支路量度值。 一组分支量度值中的每一个是对样本的幅度值对应于特定状态的可能性的指示，状态被定义为n位数的序列。 形成延迟单元的延迟链的一部分的延迟单元包括延迟链的第一延迟单元，其连接到分支量度计算单元。 路径度量计算单元的路径度量计算链包括具有耦合到延迟单元的第一输入和耦合到先前路径量度计算单元的第二输入的一个或多个路径度量计算单元。 路径度量计算单元从分支度量值计算路径度量值，路径度量值正在指示样本序列对应于状态序列的可能性。

公开(公告)号：US20070217795A1

公开(公告)日：2007-09-20

申请号：US10599785

申请日：2005-04-11

申请人： Rob Otte

发明人： Rob Otte

IPC分类号： H04B10/06 ,  H04B10/00

CPC分类号： H04B10/112

摘要： The present invention relates to a receiver 20 for a free-space optical network. The receiver 20 includes a primary photo detector 12 and a diffuser 13 arranged in the focal plane of an objective lens 11. Auxiliary photo detectors 15a, 15b are arranged to face the diffuser Data reception can take place via the auxiliary detectors 15a, 15b that can move the primary detector 12 to align it with an incoming beam, based on the difference in radiation intensity received at the auxiliary photo detectors 15a, 15b.

摘要翻译： 本发明涉及一种用于自由空间光网络的接收机20。 接收器20包括布置在物镜11的焦平面上的初级光电检测器12和漫射器13.辅助光电检测器15a，15b布置成面对漫射器。数据接收可以经由辅助检测器15a， 15b，其可以基于在辅助光电检测器15a，15b处接收的辐射强度的差异来移动主检测器12以使其与入射光束对准。

公开(公告)号：US07248630B2

公开(公告)日：2007-07-24

申请号：US10495941

申请日：2002-10-30

申请人： David Modrie ,  Rob Otte

发明人： David Modrie ,  Rob Otte

IPC分类号： H03H7/30 ,  H04L27/06

CPC分类号： H04L7/0062 ,  G11B20/10009 ,  G11B20/10037 ,  H04L7/0029 ,  H04L7/0079 ,  H04L25/03044 ,  H04L2025/03509 ,  H04L2025/0363

摘要： The invention relates to an LMS-based asynchronous receiver for digital transmission and recording systems. The receiver comprises a digital adaptive equalizer (EQ) for receiving a received sequence rn and for delivering an equalized sequence yn. The equalizer (EQ) operates at the sampling rate 1/Ts, asynchronous to the data rate 1/T. An equalizer adaptation method using LMS techniques is described for adapting equalizer taps asynchronously to the data rate via a control loop. A first sampling rate converter (SRC1) performs timing recovery at the data rate 1/T after equalization on the equalized sequence yn. A second sampling rate converter (SRC2) is provided for converting a delayed version of the received sequence rn into an intermediate control sequence ik at the data rate 1/T.

摘要翻译： 本发明涉及一种用于数字传输和记录系统的基于LMS的异步接收机。 该接收机包括一个数字自适应均衡器（EQ），用于接收一个接收到的序列rn并传送均衡的序列yn。 均衡器（EQ）以与数据速率1 / T异步的采样率1 / Ts工作。 描述了使用LMS技术的均衡器适配方法，用于通过控制回路异步调整均衡器抽头与数据速率。 第一采样率转换器（SRC 1）在均衡序列yn上进行均衡后以数据速率1 / T执行定时恢复。 提供第二采样率转换器（SRC2），用于将接收到的序列rn的延迟版本以数据速率1 / T转换成中间控制序列ik。

公开(公告)号：US20100020300A1

公开(公告)日：2010-01-28

申请号：US12506481

申请日：2009-07-21

申请人： Willem Jan Bouman ,  Heine Melle Mulder ,  Wilfred Edward Endendijk ,  Rob Otte

发明人： Willem Jan Bouman ,  Heine Melle Mulder ,  Wilfred Edward Endendijk ,  Rob Otte

IPC分类号： G03B27/54

CPC分类号： G03B27/54 ,  G03F7/70075 ,  G03F7/70091 ,  G03F7/7085

摘要： According to an aspect of the present invention, a method of controlling a measurement apparatus for determining a property of an individually controllable element of an array of individually controllable elements, the array of individually controllable elements being capable of controlling a distribution of a beam of radiation, is disclosed. The method includes, for a sequence of a plurality of individually controllable elements: directing a measurement beam of radiation at an individually controllable element of the plurality of individually controllable elements; and detecting the measurement beam once it has been re-directed by the individually controllable element, wherein the sequence in which the method is undertaken for the plurality of individually controllable elements is related to the orientation of the plurality of individually controllable elements when the plurality of individually controllable elements are oriented to control a distribution of a beam of radiation.

摘要翻译： 根据本发明的一个方面，一种控制测量装置的方法，所述测量装置用于确定独立可控元件阵列的独立可控元件的特性，所述独立可控元件的阵列能够控制辐射束的分布 ，被披露。 该方法包括：对于多个独立可控元件的序列：将测量光束射向多个独立可控元件的独立可控元件; 并且一旦所述测量光束被所述可独立控制的元件重新引导，就检测所述测量光束，其中，所述多个独立可控元件进行所述方法的顺序与所述多个独立可控元件的取向相关， 独立可控元件被定向成控制辐射束的分布。

公开(公告)号：US20100007284A1

公开(公告)日：2010-01-14

申请号：US12445466

申请日：2007-10-11

申请人： Rob Otte

发明人： Rob Otte

IPC分类号： H05B41/36

CPC分类号： H05B41/2928 ,  H05B41/2883 ,  Y02B20/208

摘要： A driver (10) for driving a gas discharge lamp (11), preferably implemented as half-bridge converter, has two states, corresponding to rising lamp current (dI/dt>0) and falling lamp current (dI/dt

摘要翻译： 用于驱动优选实施为半桥转换器的气体放电灯（11）的驱动器（10）具有对应于上升灯电流（dI / dt> 0）和下降灯电流（dI / dt <0）的两种状态， ， 分别。 控制器（12）总是以灯电流的预定相位（phis = 2/8; phis = 6/8）改变状态（SS1-> SS2; SS2-> SS1）。 在其他预定阶段（phis = 1/8; phis = 3/8; phis = 5/8; phis = 7/8），控制器随机地决定是否改变状态（SS1-> SS2; SS2-> SS1 ），其中用于改变的概率（p）大于0并且小于1.结果，灯功率的频谱被平滑化，各个频率的功率被减小，使得刺激声共振的概率 灯减少。

公开(公告)号：US09368071B2

公开(公告)日：2016-06-14

申请号：US12602206

申请日：2008-05-30

申请人： Rob Otte ,  Carsten Deppe ,  Oscar Jan Deurloo

发明人： Rob Otte ,  Carsten Deppe ,  Oscar Jan Deurloo

IPC分类号： G09G1/00 ,  G09G3/34

CPC分类号： G09G3/3413 ,  G09G2310/0235

摘要： A light source sequentially emits lights generated by at least three light emitting elements each emitting a different primary color to generate an image. Each light emitting element has a duty cycle in a lighting period, which may be an image frame period. A sequence scheme is provided for alternatingly driving different ones of the light emitting elements. The light emitting elements are driven in accordance with the sequence scheme at least two times in the lighting period, while maintaining the duty cycle for each light emitting element. In the sequence scheme, at least one light emitting element having the highest temperature sensitivity of all light emitting elements is driven more times than another one.

摘要翻译： 光源顺序地发射由至少三个发光元件产生的光，每个发光元件发射不同的原色以产生图像。 每个发光元件在点亮周期中具有占空比，其可以是图像帧周期。 提供了用于交替地驱动不同的发光元件的顺序方案。 在保持发光元件的占空比的同时，在点亮期间，根据顺序方案驱动发光元件至少两次。 在顺序方案中，具有所有发光元件的最高温度敏感度的至少一个发光元件被驱动比另一个更多次。

公开(公告)号：US20100176738A1

公开(公告)日：2010-07-15

申请号：US12602221

申请日：2008-06-04

申请人： Rene Van Honschooten ,  Roy Hendrik Anna Maria Van Zundert ,  Rob Otte

发明人： Rene Van Honschooten ,  Roy Hendrik Anna Maria Van Zundert ,  Rob Otte

IPC分类号： H05B41/36

CPC分类号： H05B41/2928

摘要： A driver (10) for driving a gas discharge lamp (11) comprises at least two controllable switches (M1, M2) and a controller (12) for controlling the switches. The controller has a first operative state in which one switch (M1) is conductive while the other switch (M2) is non-conductive, and has a second operative state in which said other switch (M2) is conductive while said first switch (M1) is non-conductive. The controller comprises a memory device (20) comprising a plurality of memory elements (21) each containing a binary value (“0”; “1”), wherein the value of the last memory element (21(N)) determines the operative state of the controller. Responsive to a clock signal (SQL) generated by a clock device (30), the memory device shifts the contents of each memory element (21(i)) to a subsequent memory element (21(i+1)) and shifts the contents of the last memory element (21(N)) to the first memory element (21(1)).

摘要翻译： 用于驱动气体放电灯（11）的驱动器（10）包括至少两个可控开关（M1，M2）和用于控制开关的控制器（12）。 控制器具有第一操作状态，其中一个开关（M1）导通，而另一个开关（M2）不导通，并且具有第二操作状态，其中所述另一开关（M2）导通，而所述第一开关（M1 ）是不导电的。 控制器包括一个包含多个存储元件（21）的存储器件（20），每个存储器元件都包含二进制值（“0”;“1”），其中最后一个存储器元件（21（N））的值确定操作 状态的控制器。 响应于由时钟设备（30）产生的时钟信号（SQL），存储器件将每个存储元件（21（i））的内容移位到后续的存储元件（21（i + 1）），并将内容 的最后一个存储元件（21（N））发送到第一存储元件（21（1））。

公开(公告)号：US20100171771A1

公开(公告)日：2010-07-08

申请号：US12602206

申请日：2008-05-30

申请人： Rob Otte ,  Carsten Deppe ,  Oscar Jan Deurloo

发明人： Rob Otte ,  Carsten Deppe ,  Oscar Jan Deurloo

IPC分类号： G09G5/10 ,  H05B37/02

CPC分类号： G09G3/3413 ,  G09G2310/0235

摘要： A light source sequentially emits lights generated by at least three light emitting elements each emitting a different primary color to generate an image. Each light emitting element has a duty cycle in a lighting period, which may be an image frame period. A sequence scheme is provided for alternatingly driving different ones of the light emitting elements. The light emitting elements are driven in accordance with the sequence scheme at least two times in the lighting period, while maintaining the duty cycle for each light emitting element. In the sequence scheme, at least one light emitting element having the highest temperature sensitivity of all light emitting elements is driven more times than another one.

摘要翻译： 光源顺序地发射由至少三个发光元件产生的光，每个发光元件发射不同的原色以产生图像。 每个发光元件在照明周期中具有占空比，其可以是图像帧周期。 提供了用于交替地驱动不同的发光元件的顺序方案。 在保持发光元件的占空比的同时，在点亮期间，根据顺序方案驱动发光元件至少两次。 在顺序方案中，具有所有发光元件的最高温度敏感度的至少一个发光元件被驱动比另一个更多次。

公开(公告)号：US20100019683A1

公开(公告)日：2010-01-28

申请号：US12519429

申请日：2007-12-17

申请人： Rob Otte

发明人： Rob Otte

IPC分类号： H05B41/288 ,  H05B41/36

CPC分类号： H05B41/2888 ,  Y02B20/202

摘要： A method is described for driving a gas discharge lamp (11) with commutating lamp current, wherein the lamp current has an average commutation frequency (1/T0), the lamp current preferably having constant magnitude. In order to counteract the excitation of acoustic resonances, the phase (C) of the commutation moments is randomly modulated.

摘要翻译： 描述了用于驱动具有整流灯电流的气体放电灯（11）的方法，其中灯电流具有平均换向频率（1 / T0），灯电流优选具有恒定的大小。 为了抵消声共振的激励，换向力矩的相位（C）是随机调制的。