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1. 发明授权

US5834950A Phase detector which eliminates frequency ripple 失效
标题翻译：消除频率纹波的相位检测器
公开(公告)号：US5834950A
公开(公告)日：1998-11-10
申请号：US214376
申请日：1994-03-17
申请人： Ramon S. Co , Richard L. Traber
发明人： Ramon S. Co , Richard L. Traber
IPC分类号： H03L7/089 , H04L7/033 , H03K5/26
CPC分类号： H04L7/033 , H03L7/089
摘要： A phase detector is disclosed that eliminates frequency ripple in a phase-locked loop circuit. The detector includes first and second circuits for providing UP and DOWN signals respectively. It also includes a delay element for setting the duration of the DOWN signal so as to eliminate phase jitter and static phase offset.
摘要翻译：公开了消除锁相环电路中的频率纹波的相位检测器。检测器包括分别提供UP和DOWN信号的第一和第二电路。它还包括用于设置DOWN信号的持续时间的延迟元件，以消除相位抖动和静态相位偏移。

2. 发明授权

US5652531A Phase detector which eliminates frequency ripple 失效
标题翻译：消除频率纹波的相位检测器
公开(公告)号：US5652531A
公开(公告)日：1997-07-29
申请号：US642335
申请日：1996-05-03
申请人： Ramon S. Co , Richard L. Traber
发明人： Ramon S. Co , Richard L. Traber
IPC分类号： H03L7/089 , H04L7/033 , H03K5/22 , H03K5/26
CPC分类号： H04L7/033 , H03L7/089
摘要： A phase detector is disclosed that eliminates frequency ripple in a phase-locked loop circuit. The detector includes first and second circuits for providing UP and DOWN signals respectively. It also includes a delay element for setting the duration of the DOWN signal so as to eliminate phase jitter and static phase offset.
摘要翻译：公开了消除锁相环电路中的频率纹波的相位检测器。检测器包括分别提供UP和DOWN信号的第一和第二电路。它还包括用于设置DOWN信号的持续时间的延迟元件，以消除相位抖动和静态相位偏移。

3. 发明授权

US06851080B1 Automatic activation of ASIC test mode 失效
标题翻译：自动激活ASIC测试模式
公开(公告)号：US06851080B1
公开(公告)日：2005-02-01
申请号：US09368918
申请日：1999-08-05
申请人： Richard L. Traber , Li-Jau Yang
发明人： Richard L. Traber , Li-Jau Yang
IPC分类号： G01R31/317 , G01R31/3185 , G01R31/28 , H03K19/00
CPC分类号： G01R31/31701 , G01R31/318572
摘要： An automatic scan test enable signal assertion system and method responds to transitions in signals communicated via selected pins that are not dedicated solely to testing operations. Pins are utilized to communicate a trigger signal and a stage progression signal. The trigger signal provides an indication to initiate a scan test enable signal assertion or deassertion and the stage progression signal controls the progress of the scan test enable activation or deactivation initiation. A scan test enable trigger sensing component provides an assertion or deassertion notification when logical values of a trigger signal captured during multiple stages provide an indication to begin a scan test enable signal assertion or deassertion. A staging component advances the logical values through stages in accordance with a progression signal and issues an asserted or deasserted scan test enable signal based upon the assertion or deassertion notification from the scan test enable trigger sensing component.
摘要翻译：自动扫描测试启用信号断言系统和方法响应于通过选择的引脚传递的信号的转换，这些引脚不是专门用于测试操作。引脚用于传送触发信号和级数信号。触发信号提供启动扫描测试启用信号断言或解除停用的指示，并且阶段进程信号控制扫描测试启用激活或停用启动的进展。当在多个级中捕获的触发信号的逻辑值提供开始扫描测试使能信号断言或解除禁止的指示时，扫描测试使能触发感测部件提供断言或解除断言通知。分级组件根据进展信号逐级地推进逻辑值，并且基于来自扫描测试启用触发感测组件的断言或解除否定通知发出断言或无效的扫描测试使能信号。

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