公开(公告)号：US5530233A

公开(公告)日：1996-06-25

申请号：US268360

申请日：1994-06-30

申请人： Mark Krichever ,  Simon Bard ,  Peter Fazekas

发明人： Mark Krichever ,  Simon Bard ,  Peter Fazekas

IPC分类号： G06K7/10

CPC分类号： G06K7/1092

摘要： Optical scanning of bar code symbols in which light reflected from the scanned symbol is collected with stationary light collection optics and swept across an array of individual light detection elements (e.g., photodetectors). Detection circuitry determines which of the detection elements is receiving the incoming light beam at a given time, and produces an output signal based preferably only on the outputs of those detection elements. The selection of detection elements to be used in forming the output signal may be made by synchronizing the sampling of the detection elements with the scanning movement of the outgoing light beam. Alternatively, the selection may be based on the output level of the detection elements (e.g., by only using outputs that exceed a predetermined threshold).

摘要翻译： 条形码符号的光学扫描，其中从扫描的符号反射的光由固定的光收集光学器件收集并扫过各个光检测元件阵列（例如，光电探测器）。 检测电路确定哪个检测元件在给定时间接收入射光束，并且优选仅基于这些检测元件的输出产生输出信号。 可以通过使检测元件的采样与出射光束的扫描移动同步来进行用于形成输出信号的检测元件的选择。 或者，选择可以基于检测元件的输出电平（例如，仅使用超过预定阈值的输出）。

公开(公告)号：US4686455A

公开(公告)日：1987-08-11

申请号：US636925

申请日：1984-08-02

申请人： Reiner Lassmann ,  Albert Krupp ,  Peter Fazekas

发明人： Reiner Lassmann ,  Albert Krupp ,  Peter Fazekas

IPC分类号： G01R31/28 ,  G01R31/305 ,  G01R15/12 ,  G01R31/00

CPC分类号： G01R31/305

摘要： Time-critical events are localized within a clocked electronic circuit without requiring cyclical operation By way of measuring at the outputs of the circuit, the limit frequency of the circuit is identified. A test pattern sequence is then applied to this circuit. The number n of that test pattern at which errors are perceived at the outputs is identified, in particular with a clock frequency higher than the identified limit frequency of the circuit. The test patterns having the numbers n-m are applied to the circuit with a clock frequency greater than the identified limit frequency of the circuit and the remaining n test patterns are applied to the circuit with a clock frequency lower than the identified limit frequency of the circuit, being applied thereto in succession step-by-step with m=1,2,3 . . . in at least one run of n test patterns. A check is carried out after every run of a test pattern sequence of n test patterns as to whether an error still exist at the output until an error can no longer be documented at the output and a determination is thus made with respect to which test pattern having the number n-m the error is generated within the -circuit. An error tracking technique is carried out in order to localize the cause of error within the electronic circuit.

摘要翻译： 时间紧迫的事件被定位在时钟电子电路内，而不需要周期性的操作。通过在电路的输出端测量电路的极限频率。 然后将测试图案序列应用于该电路。 识别在输出处感知到错误的测试模式的数量n，特别是以高于所识别的电路极限频率的时钟频率。 具有数字nm的测试图案以大于所识别的电路极限频率的时钟频率施加到电路，并且剩余的n个测试图案以低于所识别的电路限制频率的时钟频率施加到电路， 以m = 1,2,3的顺序连续施加。 。 。 在至少一次n个测试模式中。 在n个测试模式的测试模式序列的每次运行之后执行检查，以确定在输出处是否仍然存在错误，直到在输出处不能再记录错误，并且因此对于哪个测试模式进行确定 具有nm的数量，在电路内产生误差。 进行误差跟踪技术以便在电子电路内定位误差原因。

公开(公告)号：US4675602A

公开(公告)日：1987-06-23

申请号：US706105

申请日：1985-02-27

申请人： Hans-Peter Feuerbaum ,  Peter Fazekas

发明人： Hans-Peter Feuerbaum ,  Peter Fazekas

IPC分类号： H01J37/28 ,  G01Q10/06 ,  G01R31/302 ,  G01R31/305 ,  G01T1/28 ,  H01J37/04 ,  H01J37/244 ,  H01J37/26 ,  H01L21/66 ,  G01N23/225

CPC分类号： G01R31/305 ,  H01J37/266

摘要： A method for automatically setting an operating point in signal curve measurements with particle beam measuring apparatus. An automatic setting of the operating point is provided when no specific point in time is known at which a reference potential is present at a measuring location. Given stroboscopically keyed primary particles, a periodic signal curve, which also comprises a specific reference potential in addition to other potentials, is applied to the measuring location. The keying phase of the keyed primary particles is varied with respect to the periodic signal curve. The periodic signal curve is quantitatively registered in this fashion. The phase point of the qualitatively registered signal curve which corresponds to the specific reference potential at the measuring location is identified. A keying phase of the primary particles is kept constant during the setting of the operating point, and is kept constant to phase points at which the reference potential is present at the measuring location.

摘要翻译： 一种使用粒子束测量装置自动设定信号曲线测量中的工作点的方法。 当没有特定的时间点已知在测量位置处存在参考电位时，提供工作点的自动设置。 给定频率键控的初级粒子，除了其他电位之外，还包括特定参考电位的周期信号曲线被应用于测量位置。 键控一次粒子的键控阶段相对于周期信号曲线而变化。 周期信号曲线以这种方式定量地登记。 识别与测量位置处的特定参考电位相对应的定性登记信号曲线的相位点。 初始粒子的键控阶段在工作点的设定期间保持恒定，并且保持恒定到参考电位存在于测量位置处的相位点。

公开(公告)号：US20130026235A1

公开(公告)日：2013-01-31

申请号：US13193752

申请日：2011-07-29

申请人： Vladimir Gurevich ,  Peter Fazekas ,  Dariusz J. Madej ,  Gary G. Schneider ,  Bruno Vande Vyvre

发明人： Vladimir Gurevich ,  Peter Fazekas ,  Dariusz J. Madej ,  Gary G. Schneider ,  Bruno Vande Vyvre

IPC分类号： G06K7/14

CPC分类号： G06K7/10633

摘要： A method of operating a laser scanner for reading a barcode. The laser scanner is configured to operate in at least two operating modes including a scanning mode and an aiming mode. The method includes operating the laser scanner in the scanning mode after a trigger signal is generated by a trigger on the laser scanner, and decoding the electrical signal that is received from the photodetector when the laser scanner is in the scanning mode. If the electrical signal from the photodetector is not successfully decoded after a first predetermined time period since the trigger signal is generated, alternating the laser scanner between the aiming mode and the scanning mode.

摘要翻译： 一种操作用于读取条形码的激光扫描器的方法。 激光扫描器被配置为在包括扫描模式和瞄准模式的至少两种操作模式中操作。 该方法包括在激光扫描仪上通过触发产生触发信号之后以扫描模式操作激光扫描仪，以及当激光扫描仪处于扫描模式时解码从光电检测器接收的电信号。 如果在产生触发信号之后的第一预定时间段之后来自光电检测器的电信号未成功解码，则在瞄准模式和扫描模式之间交替激光扫描仪。

公开(公告)号：US07128264B2

公开(公告)日：2006-10-31

申请号：US10897728

申请日：2004-07-23

申请人： Edward Barkan ,  Peter Fazekas

发明人： Edward Barkan ,  Peter Fazekas

IPC分类号： G06K7/10

CPC分类号： G06K7/10851

摘要： A high gain, low signal-to-noise, transimpedance amplifier is prevented from saturation even in the presence of bright sunlight by an offset adjustment circuit utilizing a field effect transistor as a variable resistor.

公开(公告)号：US06257491B1

公开(公告)日：2001-07-10

申请号：US09519576

申请日：2000-03-06

申请人： Chinh Tan ,  Miklos Stern ,  Henry Grossfeld ,  Paul Dvorkis ,  Peter Fazekas

发明人： Chinh Tan ,  Miklos Stern ,  Henry Grossfeld ,  Paul Dvorkis ,  Peter Fazekas

IPC分类号： G06K710

CPC分类号： G06K7/10742 ,  G06K7/10574 ,  G06K7/10643 ,  G06K7/10653 ,  G06K7/10702 ,  G06K7/10811 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/183 ,  H01S5/423

摘要： An integrated optical module for an optical scanner has a lens spaced from a vertical-cavity surface-emitting laser (VCSEL) by a spacer of defined dimensions. The module, in an alternative embodiment, includes a wafer frame, a suspended mirror mounted for oscillation on the frame, a wafer substrate bonded beneath the frame and a wafer cover bonded above the frame. The cover includes a mirror travel stop to protect the mirror against shocks. A VCSEL mounted to the wafer cover produces a beam which is shaped and deflected by a diffractive optical element onto the oscillating mirror. The reflected beam passes out of the module toward an indicia to be read. Large numbers of such devices may be fabricated relatively cheaply using wafer-scale processing and assembly technology. Three large wafers are fabricated corresponding respectively to arrays of substrates, frames and covers. The large wafers are bonded together in a sandwich arrangement, and are then diced to produce the individual scan modules. The modules may provide either one-dimensional or two-dimensional scanning.

摘要翻译： 用于光学扫描仪的集成光学模块具有通过限定尺寸的间隔件与垂直腔表面发射激光器（VCSEL）间隔开的透镜。 在替代实施例中，该模块包括晶片框架，安装用于在框架上摆动的悬挂镜，结合在框架下方的晶片衬底以及粘结在框架上方的晶片盖。 盖子包括镜子行驶挡板，以防止镜子受到冲击。 安装到晶片盖的VCSEL产生由衍射光学元件成形并偏转到振动反射镜上的光束。 反射光束从模块朝向要读取的标记。 可以使用晶片级处理和组装技术相对便宜地制造大量的这种装置。 制造三个大的晶片，分别对应于基板，框架和盖子的阵列。 大晶片以夹层结构结合在一起，然后被切割以产生各个扫描模块。 模块可提供一维扫描或二维扫描。

公开(公告)号：US5635700A

公开(公告)日：1997-06-03

申请号：US281413

申请日：1994-07-27

申请人： Peter Fazekas

发明人： Peter Fazekas

IPC分类号： G06K7/10

CPC分类号： G06K7/10841 ,  G06K2007/10524

摘要： Bar code reading in which light reflected from a scanned symbol is optically collected by a multi-channel light detector comprising an array of more than one individual light detection elements (e.g., photodetectors) each having an output capable of providing an output signal representative of light impinging thereon, amplifiers respectively coupled to each of the light detection elements, and a summing unit coupled to the outputs of each of the amplifiers for providing a signal representative of the sum of the amplified output signals of all of the light detection elements.

摘要翻译： 条形码读取，其中从扫描符号反射的光被多通道光检测器光学地收集，该多通道光检测器包括多于一个的单独的光检测元件（例如，光电检测器）的阵列，每个光检测元件具有能够提供代表光的输出信号 分别耦合到每个光检测元件的放大器和耦合到每个放大器的输出的求和单元，用于提供表示所有光检测元件的放大输出信号之和的信号。

公开(公告)号：US4860225A

公开(公告)日：1989-08-22

申请号：US183336

申请日：1988-04-07

申请人： Rolf Von Criegern ,  Peter Fazekas ,  Johannes Fottner

发明人： Rolf Von Criegern ,  Peter Fazekas ,  Johannes Fottner

IPC分类号： G01N23/225 ,  H01J37/252 ,  H01J37/256 ,  H01J49/00 ,  H01J49/02 ,  H01J49/28

CPC分类号： H01J49/142 ,  G01N23/225 ,  H01J37/256 ,  H01J49/0004 ,  H01J49/0036

摘要： A method and an apparatus for storing measured data from a sputter crater which is generated and analyzed in a secondary ion mass spectrometer is considerably more simple and cost-effective than techniques requiring complete data storage and is an improvement over the known standard integral method. The region swept by the ion beam of a secondary ion mass spectrometer is subdivided into a plurality of sub-areas, one location in a memory is assigned to each of the sub-areas, the signal components occurring from the individual sub-areas are stored in the assigned memory locations during a sweep of the sputter crater with the ion beam, and the measured data are evaluated after the end of at least one scan of the sputter crater.

摘要翻译： 用于存储来自在二次离子质谱仪中生成和分析的溅射坑的测量数据的方法和装置比需要完整数据存储的技术要简单且成本有效，并且是对已知标准积分方法的改进。 由二次离子质谱仪的离子束扫掠的区域被细分为多个子区域，存储器中的一个位置被分配给每个子区域，存储从各个子区域发生的信号分量 在用离子束扫描溅射坑期间的分配的存储器位置中，并且在溅射坑的至少一次扫描结束之后评估测量的数据。

公开(公告)号：US08733659B2

公开(公告)日：2014-05-27

申请号：US12870040

申请日：2010-08-27

申请人： James Giebel ,  Matthew Blasczak ,  Peter Fazekas ,  Mark Weitzner

发明人： James Giebel ,  Matthew Blasczak ,  Peter Fazekas ,  Mark Weitzner

IPC分类号： G02B26/10

CPC分类号： G06K7/10584

摘要： In an electro-optical reader, an aiming or a scanning laser has a laser chip and a monitor photodiode. Output power of a laser beam emitted by the laser is regulated by a feedback circuit for maintaining substantially constant the laser beam output power during normal operation, a disabling circuit for disabling the feedback circuit, a drive circuit for driving the chip with a drive current when the feedback circuit is disabled, and for concomitantly generating a photodiode output voltage, a current modification circuit for modifying the drive current by a predetermined current with a concomitant change in the photodiode output voltage when the feedback circuit is disabled, and a control circuit for monitoring the change in the photodiode output voltage, for determining whether the change in the photodiode output voltage is sufficient to indicate an over-power condition, and for interrupting power to the chip when the over-power condition is indicated.

摘要翻译： 在电光读取器中，瞄准或扫描激光器具有激光芯片和监视器光电二极管。 由激光器发射的激光束的输出功率由反馈电路调节，用于在正常操作期间保持激光束输出功率基本上恒定，用于禁用反馈电路的禁用电路，用于以驱动电流驱动芯片的驱动电路， 反馈电路被禁止，并且用于同时产生光电二极管的输出电压，用于当反馈电路被禁用时用光源输出电压的伴随变化来修改驱动电流预定电流的电流修改电路，以及用于监视的反馈电路的控制电路 光电二极管输出电压的变化，用于确定光电二极管输出电压的变化是否足以指示过功率状态，以及当指示过功率状态时中断芯片的电源。

公开(公告)号：US08154783B2

公开(公告)日：2012-04-10

申请号：US12211522

申请日：2008-09-16

申请人： James Giebel ,  Peter Fazekas

发明人： James Giebel ,  Peter Fazekas

IPC分类号： G02B26/08

CPC分类号： H02P25/027 ,  G02B26/085 ,  G06K7/10643 ,  G06K7/10851 ,  H02P25/032 ,  Y10S359/90

摘要： A method and apparatus of driving a motor in a light scanning arrangement. The method includes the following steps: (1) driving a drive coil with a drive signal to oscillate a scan mirror and a light beam reflected from the scan mirror; (2) generating a feedback signal having zero crossings during oscillation of the scan mirror by a feedback coil in proximity to the drive coil; (3) integrating the feedback signal to generate an integrated feedback signal; and (4) processing the integrated feedback signal to generate a periodic drive signal that has the same time period as the feedback signal.

摘要翻译： 一种以光扫描装置驱动电动机的方法和装置。 该方法包括以下步骤：（1）用驱动信号驱动驱动线圈以振荡扫描镜和从扫描镜反射的光束; （2）通过靠近驱动线圈的反馈线圈产生在扫描镜的振荡期间具有过零点的反馈信号; （3）积分反馈信号以产生积分反馈信号; 和（4）处理集成反馈信号以产生与反馈信号具有相同时间周期的周期性驱动信号。