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1. 发明授权

US06181267B2 Internally triggered equivalent-time sampling system for signals having a predetermined data rate 失效
标题翻译：用于具有预定数据速率的信号的内部触发的等效时间采样系统
公开(公告)号：US06181267B2
公开(公告)日：2001-01-30
申请号：US09163811
申请日：1998-09-30
申请人： Willard MacDonald , Mark J. Woodward , Stephen W. Hinch
发明人： Willard MacDonald , Mark J. Woodward , Stephen W. Hinch
IPC分类号： H03M112
CPC分类号： G01R19/2509 , G01R13/345
摘要： An internally triggered equivalent-time sampling system characterizes high-speed data signals having a predetermined nominal data rate by using an internal oscillator that runs independent of a synchronous trigger signal. The sampling system acquires samples of the data signal at a strobe rate, set by the oscillator, which is lower than the nominal data rate of the data signal. The samples, the strobe rate, and the nominal data rate are communicated to a quality optimizer which compensates for static rate deviations between the nominal data rate and the actual data rate of the data signal to establish timing correspondence between the acquired samples. The timing correspondence establishes the time placement of the acquired samples when characterizing the data signal on a display or other output device. When the oscillator has high timing stability relative to the data signal, jitter and other attributes of the data signal are accurately characterized.
摘要翻译：内部触发的等效时间采样系统通过使用独立于同步触发信号运行的内部振荡器来表征具有预定标称数据速率的高速数据信号。采样系统以由数据信号的标称数据速率低于由振荡器设置的选通频率获取数据信号的采样。样本，频闪速率和标称数据速率被传送到质量优化器，该质量优化器补偿标称数据速率与数据信号的实际数据速率之间的静态速率偏差，以建立所获取样本之间的时间对应关系。当在显示器或其他输出设备上表征数据信号时，定时对应确定所采集的样本的时间布置。当振荡器相对于数据信号具有高的定时稳定性时，数据信号的抖动和其他属性被精确地表征。

2. 发明授权

US06374388B1 Equivalent time capture scheme for bit patterns within high data rate signals 有权
标题翻译：高数据速率信号中位模式的等效时间捕获方案
公开(公告)号：US06374388B1
公开(公告)日：2002-04-16
申请号：US09393148
申请日：1999-09-10
申请人： Stephen W. Hinch
发明人： Stephen W. Hinch
IPC分类号： G06F1100
CPC分类号： H04L7/042
摘要： A capture scheme detects repetitive occurrences of finite-length bit patterns within an applied data signal to provide trigger events for equivalent time sampling of the data signal. The capture scheme enables acquisition of samples within designated bit patterns of the data signal, independent of whether the data signal is random in nature, since the designated finite-length bit patterns occur repetitively within the data signal. In an apparatus implementation of the capture scheme, a bit pattern detector detects a designated bit pattern within the applied data signal and generates trigger events responsive to the occurrences of the bit pattern. An equivalent time sampler receives the data signal and trigger events to acquire samples of the data signal within the designated bit pattern. The capture scheme is alternatively implemented as a method including the steps of detecting a designated bit pattern, generating trigger events responsive to the occurrences of the bit pattern and acquiring equivalent time samples of the data signal according to the trigger events.
摘要翻译：捕获方案检测应用数据信号内的有限长度位模式的重复出现，以提供数据信号的等效时间采样的触发事件。由于指定的有限长度位模式在数据信号内重复出现，所以采集方案能够在数据信号的指定位模式内采集采样，而不管数据信号是否是随机的。在采集方案的装置实现中，位模式检测器检测应用数据信号内的指定位模式，并且响应于位模式的出现产生触发事件。等效时间采样器接收数据信号并触发事件以获取指定位模式内的数据信号的采样。捕获方案可选地实现为一种方法，包括以下步骤：检测指定的位模式，响应于位模式的出现产生触发事件，并根据触发事件获取数据信号的等效时间采样。

3. 发明授权

US5535038A Apparatus and method for determining extinction ratio of digital laser transmitters 失效
标题翻译：用于确定数字激光发射器消光比的装置和方法
公开(公告)号：US5535038A
公开(公告)日：1996-07-09
申请号：US261566
申请日：1994-06-17
申请人： Stephen W. Hinch
发明人： Stephen W. Hinch
IPC分类号： G01M11/00 , G01J11/00 , H04B10/00 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/158 , H01S3/00
CPC分类号： H04B10/69
摘要： An apparatus and method are provided based directly on measurement of power to enable an accurate and repeatable determination of extinction ratio. One implementation includes an optical-to-electrical (O/E) converter responsive to a modulated optical signal, a multimeter connected to the O/E converter for measuring a voltage corresponding to average optical power, a power meter connected to the O/E converter for measuring a voltage corresponding to the optical power in the modulation signal, and a microprocessor for determining the extinction ratio from the measured signals corresponding to average optical power and optical power in the modulation signal.
摘要翻译：提供一种基于功率测量的装置和方法，以便能够精确和可重复地确定消光比。一种实现方式包括响应于调制光信号的光电（O / E）转换器，连接到O / E转换器的万用表，用于测量对应于平均光功率的电压，连接到O / E的功率计转换器，用于测量与调制信号中的光功率相对应的电压;以及微处理器，用于根据与调制信号中的平均光功率和光功率对应的测量信号来确定消光比。

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