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61. 发明公开

EP1547010A2 METHOD AND APPARATUS FOR ANALYZING SERIAL DATA STREAMS 审中-公开
标题翻译：方法和设备分析串行DATENSTR ME
公开(公告)号：EP1547010A2
公开(公告)日：2005-06-29
申请号：EP03770530.8
申请日：2003-09-30
申请人： LECROY CORPORATION
发明人： MILLER, Martin , HABOT, Yaron , SCHACHNER, Joseph , SCHNECKER, Michael , PUPALAIKIS, Peter, J.
IPC分类号： G06T1/00
CPC分类号： G01R31/31709 , G01R13/345 , H04L1/24
摘要： A method and apparatus for processing a data signal is provided. The apparatus comprises an acquisition unit (715, 720 and 725) of a test instrument for acquiring a data signal for a predetermined time, a memory (730) of the test instrument for storing the data signal, and a clock recovery unit (740) for recovering a clock signal from the stored data signal. A processor slices the stored data signal into a plurality of data segments of a predetermined length in accordance with the recovered clock signal.

62. 发明公开

EP1454151A1 CONTEXT SENSITIVE TOOLBAR 审中-公开
标题翻译：上下文相关的工具栏
公开(公告)号：EP1454151A1
公开(公告)日：2004-09-08
申请号：EP02804724.9
申请日：2002-12-04
申请人： LECROY CORPORATION
发明人： SALANT, Lawrence, Steven , CAKE, Anthony , HANNES, John, Gregory
IPC分类号： G01R13/00 , G01R13/02
CPC分类号： G01R13/28 , G01R13/0227 , G06F3/0481
摘要： An oscilloscope apparatus, comprising a display for displaying a plurality of objects (520), a toolbar displayed on the display (530), and a user interface for selecting an object. The display displays one or more functions on the toolbar corresponding to the selected object.

63. 发明公开

EP1340987A3 Digital oscilloscope display and method therefor 失效
标题翻译：显示和方法，用于数字示波器
公开(公告)号：EP1340987A3
公开(公告)日：2004-05-12
申请号：EP03076205.8
申请日：1997-05-22
申请人： LECROY S.A. , LECROY CORPORATION
发明人： Miller, Martin T. , Dye, Stephen T. , Gamper, Roland
IPC分类号： G01R13/26
CPC分类号： G01R13/02
摘要： A digital oscilloscope in which the acquisition/data accumulation is decoupled from the display of the accumulated date in order to increase the speed at which new data may be accumulated and displayed. The invention also provides for variable persistence in the accumulated data so that the displayed image shows the changes in the sampled event over time. The decay, however, is proportional to population for each amplitude/time combination in the data. This maintains the statistical integrity of the data. Further, the data from each channel is assigned a different color and different populations within the channel's data is assigned a different shade of the color. These shades are dynamically updated as data from new acquisitions are accumulated. In order to highlight the population distribution in the rare events, population saturation levels may be specified.

64. 发明授权

EP0891654B1 APPARATUS AND METHOD FOR MEASURING TIME INTERVALS WITH VERY HIGH RESOLUTION 失效
标题翻译：方法和设备的高精度测量时间间隔
公开(公告)号：EP0891654B1
公开(公告)日：2001-10-31
申请号：EP97917763.1
申请日：1997-04-01
申请人： LECROY CORPORATION
发明人： SUMNER, Richard, L.
IPC分类号： H03K5/153 , G01R29/02 , G04F10/10
CPC分类号： G04F10/105 , G01R29/02 , G04F10/04
摘要： Apparatus and method for measuring a time interval between occurrences of first (A) and second (B) pulses with very high resolution operate to generate a difference pulse (12) representing the difference between the two received pulses, stretch the difference (14) in accordance with a predetermined stretch ratio, produce a compared output pulse (16) that corresponds to the stretched signal, generate a pulse sequence (18) with a first edge that corresponds to the first pulse, a second edge that corresponds to the second pulse, and another edge that corresponds to the compared output pulse, convert times of occurrences of the edges to respective time values (20), derive the time interval between the received pulses from the time values and the stretch ratio, and calibrate the stretch ratio from the time values.

65. 发明公开

EP0875764A2 Self-calibration of an oscilloscope using a square-wave test signal 失效
标题翻译： Eigenkalibrierung eines Oszilloskops mittels eines Rechteck-Testsignals
公开(公告)号：EP0875764A2
公开(公告)日：1998-11-04
申请号：EP98303380.4
申请日：1998-04-30
申请人： LECROY CORPORATION
发明人： Schachner, Joseph M. , Hungerbuehler, Viktor
IPC分类号： G01R13/34 , G01R19/25 , G01R35/00 , H03M1/10
CPC分类号： G01R35/002 , H03M1/1009 , H03M1/12
摘要： Self-calibration of a digitizer (104,106) is carried out by using a square-wave test signal which is digitized by the digitizer (104,106), and temporal positions of the digitized values output by the digitizer (104,106) are compared to respective reference periods of the test signal. The results of the comparison operations are then used by a microprocessor (110) to calculate a time delay for adjusting a clock signal supplied to the digitizer (104,106).
摘要翻译：通过使用由数字转换器（104,106）数字化的方波测试信号来执行数字转换器（104,106）的自校准，并将数字转换器（104,106）输出的数字化值的时间位置与相应的参考周期的测试信号。然后由微处理器（110）使用比较操作的结果来计算用于调整提供给数字转换器（104,106）的时钟信号的时间延迟。

66. 发明公开

EP0734125A1 Delta sigma analog-to-digital converter 失效
标题翻译：经过Delta-Sigma模数转换器Digitalwandler
公开(公告)号：EP0734125A1
公开(公告)日：1996-09-25
申请号：EP96300211.8
申请日：1996-01-11
申请人： LECROY CORPORATION
发明人： Cake, Brian V. , Goumaz, Jean-Francois , LeCroy, Walter O.
IPC分类号： H03M3/02
CPC分类号： H03M3/47 , H03M3/43 , H03M3/456
摘要： A delta sigma converter according to the present invention replaces the quantizer of a conventional delta sigma converter, such as a comparator followed by a latch, with N quantizers, each operating at a reduced frequency f s /N and phase offset from each other by 2π/N. The quantized outputs are assembled in accordance with a control signal to produce a feedback signal at a frequency f s and the feedback signal is applied to a subtractor of the delta sigma converter.
摘要翻译：根据本发明的Δ-Σ转换器用N个量化器代替常规Δ-Σ转换器的量化器，比如后跟一个锁存器的比较器，每个量化器以降低的频率fs / N和彼此相位偏移2p / N。量化的输出根据控制信号进行组装以产生频率为fs的反馈信号，反馈信号被施加到Δ-Σ转换器的减法器。

67. 发明公开

EP0540160A2 High-speed switching tree with input sampling pulses of constant frequency and means for varying the effective sampling rate 失效
标题翻译：与输入采样频率恒定的脉冲，并且高速开关树装置，用于改变有效采样率。
公开(公告)号：EP0540160A2
公开(公告)日：1993-05-05
申请号：EP92308335.6
申请日：1992-09-14
申请人： LECROY CORPORATION
发明人： LeCroy, Walter O., Jr. , Cake, Brian V.
IPC分类号： H03K17/04 , H03K17/00
CPC分类号： H03M1/1215 , H03K17/04113 , H03K17/603
摘要： Current switching apparatus including at least one current switching tree comprised of cascaded sets of switching circuits, with an input set operable with sampling clock pulses supplied at a fixed frequency and the remaining cascaded sets operable at different frequencies, and further including a sample skipping circuit interconnected between successive sets for reducing the effective sampling frequency of the switching tree while maintaining the fixed frequency at which the input set operates. The sample skipping circuit includes a dump circuit selectively energized to dump selected samples produced by the input set. When the apparatus is formed of plural switching trees of different phases, a sampling clock generator having an adjustable delay circuit is used to delay sampling clock pulses by adjustable amounts so as to establish predetermined phases of sampling clock pulses of the same frequency and different phases for use in each switching tree.
摘要翻译：电流开关装置包括由级联组开关电路中的至少一个电流切换的树，在输入设定用于与在一个固定的频率提供采样时钟脉冲，并且在不同的频率的剩余级联集可操作，并且还包括一个样品跳跃电路相互关联连续组用于降低开关树的有效采样频率，同时保持在所述输入集进行操作的固定频率之间。样品跳过电路包括转储电路选择性地供电来转储由输入集合产生选择的样品。当该装置形成的不同阶段的多个开关树木的，具有可调节的延迟电路的取样时钟发生器用于通过调节量来延迟采样时钟脉冲，以便建立相同频率的采样时钟脉冲，并且对于不同的相位的预定相位在每个开关树使用。

68. 发明公开

EP1695100A2 RESISTIVE PROBE TIPS 审中-公开
标题翻译：电阻探针TIPS
公开(公告)号：EP1695100A2
公开(公告)日：2006-08-30
申请号：EP04815875.2
申请日：2004-12-17
申请人： LECROY CORPORATION , Campbell, Julie A. , Jacobs, Lawrence W.
发明人： CAMPBELL, Julie, A. , JACOBS, Lawrence, W.
IPC分类号： G01R31/02 , H01R13/03
CPC分类号： G01R1/06755 , G01R1/06711 , G01R1/06772 , G01R1/06788
摘要： A test probe tip (Figure 7; 140) constructed substantially from resistive material (160a). The resistive material is made of resistive conducting material (162a) substantially enclosed in and dispersed throughout encapsulating material (164a). The test probe has a probing end (154a) for probing electronic circuitry and a connection end (154b) for interfacing with a probing head (130). The resistive conducting material forms at least one path through the encapsulating material from the probing end to the connection end. The resistive conducting matenal may be a plurality of longitudinally extending resistive/conductive members or a plurality of particulate resistive/conductive members.

69. 发明公开

EP1562131A3 Simultaneous analysis of digital data sequences and underlying analog waveforms 有权
标题翻译：同时分析数字数据序列和底层模拟波形
公开(公告)号：EP1562131A3
公开(公告)日：2005-10-05
申请号：EP05250742.3
申请日：2005-02-09
申请人： LECROY CORPORATION
发明人： Gamper, Roland, LeCroy Corporation , Johnson, Kenneth William , Ritter, Gilles , Salant, Lawrence Steven
IPC分类号： G06F17/50 , H04L12/26 , H04L12/24 , G01R13/00 , H04L12/40
CPC分类号： G01R13/029 , G01R13/0209 , G01R13/0245 , G01R13/0254 , G01R31/31912 , G06F17/5036 , H04L41/22 , H04L43/00 , H04L43/045 , H04L43/16
摘要： A method and apparatus for capturing an analog waveform on a serial bus. The method comprises the steps of designating a predetermined digital data sequence, decoding a serial data signal carried on a serial data bus, and comparing the decoded serial data signal to the predetermined digital data sequence. When it is determined that a portion of the decoded serial data matches the predetermined digital data sequence, the portion of the serial data signal corresponding to the matching portion of the decoded serial data signal is marked.
摘要翻译：一种用于在串行总线上捕获模拟波形的方法和装置。该方法包括以下步骤：指定预定的数字数据序列;解码在串行数据总线上承载的串行数据信号;以及将解码的串行数据信号与预定的数字数据序列进行比较。当确定解码串行数据的一部分与预定数字数据序列匹配时，对应于解码串行数据信号的匹配部分的串行数据信号部分被标记。

70. 发明公开

EP1554807A2 HIGH BANDWIDTH REAL TIME OSCILLOSCOPE 有权
标题翻译：实时范围高带宽
公开(公告)号：EP1554807A2
公开(公告)日：2005-07-20
申请号：EP03768541.9
申请日：2003-10-24
申请人： LECROY CORPORATION
发明人： PUPALAIKIS, Peter, J. , GRAEF, David
IPC分类号： H03M1/12
CPC分类号： H03M1/12 , G01R13/0272 , G01R19/2509 , H03M1/121
摘要： A method and apparatus for digitizing a data signal, the method comprising the steps of receiving an input analog data signal (100), splitting (112) the received input analog data signal into a plurality of split signals, and mixing (116) at least one of the split signals with a predetermined periodic function with a predetermined frequency. The split signals are then digitized (106, 111) and combined (132) mathematically to form a single output data stream (135) that is a substantially correct representation of the original input signal.

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