公开(公告)号：US08102442B2

公开(公告)日：2012-01-24

申请号：US12227677

申请日：2007-05-22

申请人： Steffen Lehr ,  Patrick Vogel ,  Petrus Gijsbertus Maria Centen ,  Jeoren Rotte ,  Ruud van Ree ,  Heinrich Schemmann ,  Karl-Heinz Schaaf ,  Sabine Roth

发明人： Steffen Lehr ,  Patrick Vogel ,  Petrus Gijsbertus Maria Centen ,  Jeoren Rotte ,  Ruud van Ree ,  Heinrich Schemmann ,  Karl-Heinz Schaaf ,  Sabine Roth

IPC分类号： H04N5/217 ,  H04N5/335 ,  H03M1/00

CPC分类号： H04N5/378 ,  H04N5/3575 ,  H04N5/3658 ,  H04N5/3742

摘要： An image sensor circuit comprises a pixel cell array having a plurality of pixel cells arranged along a plurality of column lines, a plurality of readout circuits connected to said column lines, each of which comprises an analog-to-digital converter and a multiplexer for selectively applying an output signal of one of said column lines to said analog-to-digital converter. Between two of said column lines which are connected to a first one of said readout circuits located at a first side of said pixel cell array, there is a column line which is connected to a second one of said readout circuits located at a second side of said pixel cell array opposite to said first side.

摘要翻译： 图像传感器电路包括具有沿着多条列线布置的多个像素单元的像素单元阵列，连接到所述列线的多个读出电路，每个读出电路包括模拟 - 数字转换器和用于选择性地 将所述列线之一的输出信号施加到所述模数转换器。 在连接到位于所述像素单元阵列的第一侧的所述读出电路中的第一个所述列线之间的两条列线之间存在一条列线，该列线连接到位于第二侧的所述读出电路的第二侧 所述像素单元阵列与所述第一侧相对。

公开(公告)号：US20070217309A1

公开(公告)日：2007-09-20

申请号：US11579045

申请日：2005-04-19

申请人： Steffen Lehr

发明人： Steffen Lehr

IPC分类号： G11B7/125

CPC分类号： G11B7/1275 ,  G11B7/126 ,  H01S5/042 ,  H01S5/0683

摘要： The invention relates to a recording or playback apparatus for optical recording media with a compatible laser diode circuit, which can be used both for controlling the light power of a multiple laser diode with a joint monitor diode and for a number of lasers each with a monitor diode respectively assigned to a laser. The compatible laser diode circuit has a small number of terminal contacts, which corresponds to the number of terminals that is required as the minimum for a multiple laser diode with a joint monitor diode. This is achieved by providing at a terminal a means for detecting the wiring of the laser diode circuit, the output of which is connected to a logic circuit which is intended for configuring the laser diode circuit in a way corresponding to the wiring. As a result, the laser diode circuit can, in spite of a small number of terminals, be used both for recording or playback devices for optical recording media with a multiple laser diode and a joint monitor diode and for recording or playback devices for optical recording media with a number of lasers each with a monitor diode respectively assigned to a laser.

摘要翻译： 本发明涉及一种具有兼容激光二极管电路的光学记录介质的记录或重放装置，其可用于通过联合监视二极管控制多激光二极管的光功率，并且可用于多个激光器，每个具有监视器 二极管分别分配给激光器。 兼容的激光二极管电路具有少量的端子触点，其对应于具有联合监视二极管的多激光二极管所需的终端数量。 这通过在端子处提供用于检测激光二极管电路的布线的装置来实现，该激光二极管电路的输出连接到用于以对应于布线的方式配置激光二极管电路的逻辑电路。 结果，激光二极管电路尽管具有少量的端子，但可以用于具有多个激光二极管和联合监视二极管的光学记录介质的记录或重放装置，并且用于光学记录的记录或重放装置 具有多个激光器的介质，每个激光器分别具有分配给激光器的监视二极管。

公开(公告)号：US07161882B2

公开(公告)日：2007-01-09

申请号：US10451476

申请日：2001-12-10

申请人： Steffen Lehr ,  Dietmar Bräuer ,  Volker Neiss

发明人： Steffen Lehr ,  Dietmar Bräuer ,  Volker Neiss

IPC分类号： G11B5/09 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/005

摘要： In order to compensate for so-called clipping effects, it is proposed, in an apparatus for reading from and/or writing to an optical recording medium in which the light power of a laser diode (1) is to be set to a plurality of light power levels,to perform a calibration to a specific light power level (LP2) before the actual regulation of the light power. On account of the calibration, the instantaneous gradient of the characteristic curve which describes the dependence of the laser light power on the laser diode current can be inferred in order, on the basis of this information, to take account f a change—caused, for example, by ageing r clipping effects—in the characteristic curve gradient in the course of the subsequent regulation of the light power of the scanning beam generated by the laser diode (1).

摘要翻译： 为了补偿所谓的削波效应，提出了在将要将激光二极管（1）的光功率设置为多个的光记录介质读取和/或写入的装置中， 光功率水平，在实际调节光功率之前对特定光功率电平（LP 2）进行校准。 由于校准，可以根据该信息依次描述描述激光二极管电流的激光依赖关系的特性曲线的瞬时梯度，以考虑到诸如变化引起的变化。 通过老化r削波效应 - 在随后调节由激光二极管（1）产生的扫描光束的光功率的过程中的特性曲线梯度。

公开(公告)号：US06539036B2

公开(公告)日：2003-03-25

申请号：US09739197

申请日：2000-12-18

申请人： Steffen Lehr ,  Rüdiger Brunheim

发明人： Steffen Lehr ,  Rüdiger Brunheim

IPC分类号： H01S313

CPC分类号： G11B7/126 ,  H01S3/131 ,  H01S5/042 ,  H01S5/0683

摘要： The invention relates to a method and a circuit arrangement for a laser control loop with automatic adaptation to the monitoring signal polarity. Use is made of a single-phase method which consists in that a signal produced by the monitor during the starting phase of the laser control loop is compared with a reference value, and in accordance with the result of the comparison the signal produced by the monitor is fed directly or inverted to the comparator for controlling the light power of the laser during the starting phase of the laser control loop. A signal is produced which initially feeds the comparator for controlling the light power the inverted monitoring signal, or directly feeds the monitoring signal, in a fashion always independent of the monitoring signal polarity, but dependent on the polarity of a reference value, and feeds it in a non-inverted fashion in the case of a monitoring signal running up to the reference value. The laser control loop circuit according to the invention ensures that the monitoring signal is fed with a fixed polarity to the first comparator before the reference value for controlling the light power is reached. This is achieved by virtue of the fact that the monitoring signal is fed to a comparator which compares the monitoring signal with a reference value which is smaller than the reference value for controlling the light power. In the case of a monitoring signal not running up to the first reference value, the comparator for controlling the light power still continues to be fed the inverted monitoring signal. The laser control loop is provided, for example, for controlling the light power of a laser in optical scanning systems for recording or reproducing information independently of the monitoring signal polarity and/or the polarity of the monitor diode of the laser.

摘要翻译： 本发明涉及一种具有自动适应监测信号极性的激光控制回路的方法和电路装置。 使用单相方法，其中包括在激光控制回路的起动阶段由监视器产生的信号与参考值进行比较，并且根据比较结果，由监视器产生的信号 直接或反向馈入比较器，以在激光控制回路的起动阶段控制激光的光功率。 产生信号，其最初馈送比较器以控制反相监视信号的光功率，或者直接馈送监视信号，其方式总是与监视信号极性无关，但取决于参考值的极性，并将其馈送 在监视信号运行到参考值的情况下以非反相方式。 根据本发明的激光控制回路电路确保在达到用于控制光功率的参考值之前，将监控信号以固定的极性馈送到第一比较器。 这是通过将监视信号馈送到将监视信号与小于用于控制光功率的参考值的参考值进行比较的比较器来实现的。 在监视信号不超过第一参考值的情况下，用于控制光功率的比较器仍然继续被馈送到反相监视信号。 例如，提供激光控制回路，用于在光学扫描系统中控制激光器的光功率，用于独立于激光器的监视二极管的监视信号极性和/或极性而记录或重放信息。

公开(公告)号：US5452195A

公开(公告)日：1995-09-19

申请号：US138212

申请日：1993-10-08

申请人： Steffen Lehr ,  Volker Neiss ,  Jose I. Rodriguez-Duran ,  Rudolf Koblitz

发明人： Steffen Lehr ,  Volker Neiss ,  Jose I. Rodriguez-Duran ,  Rudolf Koblitz

IPC分类号： H02M3/28 ,  H02M1/00 ,  H02M1/36 ,  H02M3/335

CPC分类号： H02M1/36 ,  H02M3/33576 ,  Y10S323/901

摘要： An integrated control circuit forms a driver stage of an output transistor of a switch mode power supply. During a start-up interval of a run mode operation, the control circuit does not consume supply current and does not produce a switching control signal for switching the transistor. During an initialization interval that follows the start-up interval, a reference voltage source that is included in the control circuit is turned on and internal conditions in the control circuit are defined. The switching control signal is generated following the initialization interval.

摘要翻译： 集成控制电路形成开关模式电源的输出晶体管的驱动级。 在运行模式操作的启动间隔期间，控制电路不消耗供电电流，并且不产生用于切换晶体管的开关控制信号。 在启动间隔之后的初始化间隔期间，包括在控制电路中的参考电压源导通，并且定义控制电路中的内部条件。 在初始化间隔之后生成切换控制信号。

公开(公告)号：US5381329A

公开(公告)日：1995-01-10

申请号：US26052

申请日：1993-03-04

申请人： Rudolf Koblitz ,  Steffen Lehr ,  Franz Dieterle

发明人： Rudolf Koblitz ,  Steffen Lehr ,  Franz Dieterle

IPC分类号： H02M1/00 ,  H02M1/36 ,  H02M3/335 ,  H04N5/63 ,  H02M3/24

CPC分类号： H02M1/36 ,  H04N5/63 ,  H02M2001/0032 ,  Y02B70/16

摘要： A method of controlling the switching transistor in the switch mode power supply of a television receiver includes the steps of selectively operating the transistor in a stand-by state, a start-up state and an ON-state. During the stand-by state the switching transistor is rendered conductive by applying bursts of pulses at a frequency above, and unsynchronized with, the line frequency of the television receiver. The pulses are separated by changing intervals. During the start-up state the frequency of said bursts of the pulses is continuously reduced and pulses and the duration of the on time of the transistor is determined using a regulation voltage. During the ON-state, line synchronizing pulses are applied and the switching transistor is regulated to the line frequency.

摘要翻译： 控制电视接收机的开关模式电源中的开关晶体管的方法包括以下步骤：在待机状态，启动状态和导通状态下选择性地操作晶体管。 在待机状态期间，通过以与电视接收机的线路频率高于并且不同步的频率施加脉冲串来使开关晶体管导通。 脉冲通过改变间隔来分离。 在启动状态期间，脉冲的脉冲串的频率被连续地减小，并且使用调节电压确定晶体管的脉冲和导通时间的持续时间。 在ON状态下，施加线路同步脉冲，并将开关晶体管调节到线路频率。

公开(公告)号：US20090251580A1

公开(公告)日：2009-10-08

申请号：US12227675

申请日：2007-05-23

申请人： Heinrich Schemmann ,  Sabine Roth ,  Steffen Lehr ,  Volker Neiss ,  Nicolaas Johannes Damstra ,  Petrus Gijsbertus Maria Centen ,  Jeroen Rotte

发明人： Heinrich Schemmann ,  Sabine Roth ,  Steffen Lehr ,  Volker Neiss ,  Nicolaas Johannes Damstra ,  Petrus Gijsbertus Maria Centen ,  Jeroen Rotte

IPC分类号： H04N5/335

CPC分类号： H04N5/343 ,  H04N5/35554 ,  H04N5/359 ,  H04N5/361 ,  H04N5/3653 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/376 ,  H04N5/378

摘要： A circuit for resetting and reading out a pixel cell of a CMOS image sensor is proposed. The circuit allows for reading out the pixel cell at least two times during a main integration interval, thereby generating at least two pixel signals. The circuit further comprises means for combining the at least two pixel signals to an output signal. The means for combining are operable to combine the at least two pixel signals weighted in dependence on a saturation level of the pixel cell. A method for controlling the circuit for reading out the image sensor is also proposed.

摘要翻译： 提出了用于复位和读出CMOS图像传感器的像素单元的电路。 电路允许在主积分间隔期间至少读出像素单元至少两次，从而产生至少两个像素信号。 电路还包括用于将至少两个像素信号组合到输出信号的装置。 用于组合的装置可操作以组合根据像素单元的饱和​​度级加权的至少两个像素信号。 还提出了一种用于控制用于读出图像传感器的电路的方法。

公开(公告)号：US06650605B1

公开(公告)日：2003-11-18

申请号：US09599683

申请日：2000-06-22

申请人： Steffen Lehr

发明人： Steffen Lehr

IPC分类号： G11B700

CPC分类号： H03F3/087 ,  G11B7/005 ,  G11B7/13 ,  H03F1/30 ,  H03F3/45475 ,  H03F3/45928 ,  H03F2200/78

摘要： An apparatus for scanning optical recording media, having a detection unit with a photodetector and a reference voltage associated therewith, an evaluation unit having an input, and a connection disposed between the detection unit and the input of the evaluation unit. In such scanning apparatuses, voltage coupling is usually provided between the detection unit and the input of the evaluation unit. Such a coupling arrangement has the disadvantage that the two units must operate in approximately the same voltage range. In the scanning apparatus according to the present invention it is not necessary for the detection unit and the evaluation unit to operate in substantially the same voltage range. According to the present invention, the evaluation unit has a controller, that holds the input of the connection at the value of a reference voltage of the detection unit.

摘要翻译： 一种用于扫描光学记录介质的装置，具有带有光电检测器的检测单元和与其相关联的参考电压，具有输入的评估单元和设置在检测单元和评估单元的输入端之间的连接。 在这种扫描装置中，通常在检测单元和评估单元的输入端之间设置电压耦合。 这种耦合布置的缺点是两个单元必须在大致相同的电压范围内工作。 在根据本发明的扫描装置中，检测单元和评估单元不需要在基本上相同的电压范围内操作。 根据本发明，评估单元具有控制器，其将连接的输入保持在检测单元的参考电压的值。

公开(公告)号：US06363044B1

公开(公告)日：2002-03-26

申请号：US09209716

申请日：1998-12-11

申请人： Steffen Lehr ,  Christian Buechler ,  Friedheim Zucker

发明人： Steffen Lehr ,  Christian Buechler ,  Friedheim Zucker

IPC分类号： G11B390

CPC分类号： G11B7/126 ,  G01R31/2635 ,  G11B7/13 ,  H01S5/042 ,  H01S5/06825 ,  H01S5/0683

摘要： A photodiode detection circuit is used to automatically identify a type of photodiode circuit connected to it. The photodiode circuit comprises at least a photodiode. Once the type of photodiode circuit has been identified by applying a current to it and evaluating a voltage occuring at an input of the detection circuit the photodetection circuit adapts itself to it, e.g. a reverse biasing voltage is/isn't applied to the photodiode of the photodiode circuit. The result is a photodiode detection circuit which uses a forward or a reversed biased photodiode. The photodiode detection circuit is now in a state to measure light falling on the photodiode. The detection circuit may be part of a light intensity monitoring and controlling circuit which allows to regulate the intensity of a laser beam in an optical disk reading/recording device.

摘要翻译： 光电二极管检测电路用于自动识别与其连接的光电二极管电路的类型。 光电二极管电路至少包括光电二极管。 一旦通过向其施加电流并且评估在检测电路的输入处发生的电压来识别光电二极管电路的类型，则光电检测电路使其自身适应于其。 反向偏置电压不会施加到光电二极管电路的光电二极管。 结果是使用正向或反向偏置光电二极管的光电二极管检测电路。 光电二极管检测电路现在处于测量落在光电二极管上的光的状态。 检测电路可以是允许调节光盘读取/记录装置中的激光束的强度的光强度监视和控制电路的一部分。

公开(公告)号：US07599412B2

公开(公告)日：2009-10-06

申请号：US10759727

申请日：2004-01-16

申请人： Patrick Vogel ,  Steffen Lehr

发明人： Patrick Vogel ,  Steffen Lehr

IPC分类号： H01S3/13

CPC分类号： G11B7/126 ,  H01S5/042 ,  H01S5/06825 ,  H01S5/0683

摘要： The invention relates to a method for initializing a control of a supply voltage of a light source, such as a laser diode, the light source being arranged in a first circuit configuration having an associated first reference voltage level or the light source being arranged in an alternative second circuit configuration having an associated alternative second reference voltage level, the method comprising the steps of gradually changing the supply voltage into the direction of the first reference voltage, measuring a light emission of the light source while gradually changing the supply voltage, if no light emission is measured: starting the control of the supply voltage of the light source after the first reference voltage has been reached and if a light emission is measured gradually changing the supply voltage into the direction of the second reference voltage and starting the control of the supply voltage of the light source after the second reference voltage has been reached.

摘要翻译： 本发明涉及一种用于初始化诸如激光二极管的光源的电源电压的控制的方法，所述光源被布置在具有相关联的第一参考电压电平的第一电路配置中，或者光源被布置在 替代的第二电路配置具有相关联的替代的第二参考电压电平，该方法包括以下步骤：逐渐改变供电电压到第一参考电压的方向，如果没有，则测量光源的发光，同时逐渐改变电源电压 测量发光：在达到第一参考电压之后开始对光源的电源电压的控制，并且如果逐渐地将电源电压改变到第二参考电压的方向，并且开始控制 达到第二基准电压后的光源的电源电压。