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1. 发明授权

US08198903B2 Chassis shielding effectiveness evaluation system 有权
标题翻译：底盘屏蔽效能评估系统
公开(公告)号：US08198903B2
公开(公告)日：2012-06-12
申请号：US12687611
申请日：2010-01-14
申请人： Jeffrey C. Hailey , Jorge C. Marcet , Leroy Jones, Jr. , Raymond A. McCormick , Todd W. Steigerwald , Tze-Chuen Toh
发明人： Jeffrey C. Hailey , Jorge C. Marcet , Leroy Jones, Jr. , Raymond A. McCormick , Todd W. Steigerwald , Tze-Chuen Toh
IPC分类号： G01R27/00
CPC分类号： G01R29/0835 , G01R31/001
摘要： A chassis shielding effectiveness evaluation system includes a chassis having a chassis ground. A board is located in the chassis and includes a board ground layer. A signal generator includes at least one ground member coupled to the chassis ground and a signal member coupled to the board ground layer. The signal generator is operable to send a signal through the signal member to the board ground layer.
摘要翻译：底盘屏蔽效能评估系统包括具有底盘接地的底盘。一个电路板位于机箱中，并包括一个电路板接地层。信号发生器包括耦合到机架接地的至少一个接地构件和耦合到电路板接地层的信号构件。信号发生器可操作以通过信号构件将信号发送到电路板接地层。

2. 发明授权

US06359214B1 Serrated EMI gasket and computer system with improved EMI shielding 有权
标题翻译：锯齿EMI垫片和计算机系统具有改进的EMI屏蔽
公开(公告)号：US06359214B1
公开(公告)日：2002-03-19
申请号：US09429201
申请日：1999-10-28
申请人： Richard N. Worley , Leroy Jones, Jr. , Steve L. Williams
发明人： Richard N. Worley , Leroy Jones, Jr. , Steve L. Williams
IPC分类号： H05K900
CPC分类号： H05K9/0015 , G06F1/182 , Y10S277/92
摘要： An EMI gasket (20) includes a plurality of serrations (34) along at least one edge (35, 36). The serrations (34) are arranged side-by-side so that each may be articulated individually. That is, one of the serrations (34) may be displaced significantly out of the plane of the gasket without affecting adjacent serrations. Thus, when the edge of the gasket (20) is compressed between two surfaces which include a discontinuity (40) such as a step or protuberance between them, the serration in contact with the discontinuity is displaced out of the plane of the gasket without displacing adjacent portions of the gasket. Allowing a portion of an EMI gasket (20) to be displaced out of the plane of the gasket without affecting adjacent portions of the gasket substantially reduces or eliminates gaps which occur due to the failure of the gasket to precisely follow the contour of a component.
摘要翻译： EMI垫片（20）包括沿着至少一个边缘（35,36）的多个锯齿（34）。锯齿（34）并排布置，使得每个可以单独地铰接。也就是说，锯齿（34）中的一个可以显着地偏离垫圈的平面而不影响相邻的锯齿。因此，当垫圈（20）的边缘在两个表面之间被压缩时，这两个表面之间包括诸如它们之间的台阶或突起的不连续（40）时，与不连续接触的锯齿被移出垫圈的平面而不会移位垫片的相邻部分。允许EMI垫片（20）的一部分从垫圈的平面移出而不影响垫圈的相邻部分，基本上减少或消除了由于衬垫的故障而精确地跟随部件的轮廓而发生的间隙。

3. 发明申请

US20110169503A1 Chassis Shielding Effectiveness Evaluation System 有权
标题翻译：底盘屏蔽效能评估系统
公开(公告)号：US20110169503A1
公开(公告)日：2011-07-14
申请号：US12687611
申请日：2010-01-14
申请人： Jeffrey C. Hailey , Jorge C. Marcet , Leroy Jones, JR. , Raymond A. McCormick , Todd W. Steigerwald , Tze-Chuen Toh
发明人： Jeffrey C. Hailey , Jorge C. Marcet , Leroy Jones, JR. , Raymond A. McCormick , Todd W. Steigerwald , Tze-Chuen Toh
IPC分类号： G01R27/00
CPC分类号： G01R29/0835 , G01R31/001
摘要： A chassis shielding effectiveness evaluation system includes a chassis having a chassis ground. A board is located in the chassis and includes a board ground layer. A signal generator includes at least one ground member coupled to the chassis ground and a signal member coupled to the board ground layer. The signal generator is operable to send a signal through the signal member to the board ground layer.
摘要翻译：底盘屏蔽效能评估系统包括具有底盘接地的底盘。一个电路板位于机箱中，并包括一个电路板接地层。信号发生器包括耦合到机架接地的至少一个接地构件和耦合到电路板接地层的信号构件。信号发生器可操作以通过信号构件将信号发送到电路板接地层。

4. 发明授权

US06738919B2 Signal trace phase delay 有权
标题翻译：信号跟踪相位延迟
公开(公告)号：US06738919B2
公开(公告)日：2004-05-18
申请号：US09771094
申请日：2001-01-26
申请人： Steven L. Williams , Richard N. Worley , Satish N. Pratapneni , Leroy Jones, Jr.
发明人： Steven L. Williams , Richard N. Worley , Satish N. Pratapneni , Leroy Jones, Jr.
IPC分类号： G06F112
CPC分类号： H05K1/0248 , G06F1/10 , H05K1/0228 , H05K2201/09236 , H05K2201/09263 , H05K2201/10159
摘要： A technique for reducing electromagnetic interference (EMI) in electronic systems that provides a phase shift between signals having a common frequency component propagating on adjacent portions of circuit board signal traces. The phase shift is produced by a delay element in one of the adjacent signal traces. In one example, the delay element includes a serpentine delay located at the signal generating circuit side of the adjacent portion of the signal trace. Such a technique can be used to reduce EMI emissions from clock signals provided to RAM circuits of a system memory of a computer system.
摘要翻译：一种用于减小电子系统中的电磁干扰（EMI）的技术，其在具有在电路板信号迹线的相邻部分上传播的公共频率分量的信号之间提供相移。相移由相邻信号迹线之一中的延迟元件产生。在一个示例中，延迟元件包括位于信号迹线的相邻部分的信号发生电路侧的蛇形延迟。这样的技术可以用于减少提供给计算机系统的系统存储器的RAM电路的时钟信号的EMI发射。

5. 发明授权

US06555743B1 EMI attenuation obtained by application of waveguide beyond frequency cutoff techniques for add-in ITE mass storage devices 有权
标题翻译：通过应用波导获得的EMI衰减超过了用于附加ITE大容量存储设备的频率切断技术
公开(公告)号：US06555743B1
公开(公告)日：2003-04-29
申请号：US09632478
申请日：2000-08-04
申请人： Richard N. Worley , Steve L. Williams , Leroy Jones, Jr.
发明人： Richard N. Worley , Steve L. Williams , Leroy Jones, Jr.
IPC分类号： H05K900
CPC分类号： H05K9/0049 , G06F1/182 , G06F1/184 , G06F1/187 , G11B33/1493
摘要： A computer system including a number of option bays that accommodate optional peripheral equipment, such as CD-ROM drives, DVD drives, magnetic tape backup systems and Zip drives. An unpopulated bay is segmented into compartments by a divider that extends through substantially the entire depth of the bay so that each of the compartments operates as a waveguide beyond frequency cutoff (WBFC). The resulting compartments are characterized by cross-sectional dimensions that are less than the cross-sectional dimensions of the bay, so that the compartmentalization effects substantially enhanced attenuation of electromagnetic signals having a frequency at the highest expected operating frequency of the computer system.
摘要翻译：包括许多可选的托架的计算机系统，其容纳可选的外围设备，例如CD-ROM驱动器，DVD驱动器，磁带备份系统和Zip驱动器。通过分隔器将未填充的隔间分隔成隔间，该分隔器延伸穿过隔间的整个深度，使得每个隔间作为超出频率截止（WBFC）的波导进行操作。所得到的隔室的特征在于横截面尺寸小于隔间的横截面尺寸，使得隔室对基本上增加了具有在计算机系统的最高预期工作频率下的频率的电磁信号的衰减。

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