公开(公告)号：US07107666B2

公开(公告)日：2006-09-19

申请号：US10077180

申请日：2002-02-15

申请人： Fred C. Hiatt ,  John E. DeCramer ,  Robert T. Fayfield ,  Richard J. Rassel

发明人： Fred C. Hiatt ,  John E. DeCramer ,  Robert T. Fayfield ,  Richard J. Rassel

IPC分类号： H01F7/06 ,  G11B5/17

CPC分类号： H01L23/645 ,  H01F17/0006 ,  H01F17/0033 ,  H01F41/046 ,  H01F41/34 ,  H01L2924/0002 ,  H01L2924/09701 ,  Y10T29/4902 ,  Y10T29/49062 ,  Y10T29/49064 ,  Y10T29/49073 ,  Y10T29/49156 ,  Y10T29/49165 ,  H01L2924/00

摘要： An ultra-miniature magnetic device generally comprises a conductive winding and a magnetic core. The conductive winding includes an upper conductor and a lower conductor. The magnetic core is of an elongate rectangular or oval shape having two elongate sections and two short sections. The lower conductor is preferably positioned below the elongate sections of the magnetic core while the upper conductor is preferably positioned above the elongate sections of the magnetic core. The lower and upper conductors are electrically connected by conducting via structures that are formed in sequential steps using semiconductor processing technology. The result is a coil winding around the elongate sections, with the short sections being preferably free of windings. The process provides an advantage of avoiding shorting between the via structures and the magnetic core caused by overetching when etching the via holes.

摘要翻译： 超微型磁性装置通常包括导电绕组和磁芯。 导电绕组包括上导体和下导体。 磁芯是细长的矩形或椭圆形，具有两个细长部分和两个短的部分。 下导体优选地定位在磁芯的细长部分的下方，而上导体优选地定位在磁芯的细长部分的上方。 下导体和上导体通过使用半导体处理技术以顺序步骤形成的导电通孔结构电连接。 结果是围绕细长部分的线圈缠绕，其中短部分优选地没有绕组。 该方法提供了在蚀刻通孔时避免由过蚀刻引起的通孔结构和磁芯之间短路的优点。

公开(公告)号：US06486747B1

公开(公告)日：2002-11-26

申请号：US09633474

申请日：2000-08-07

申请人： John E. DeCramer ,  Nathan Doose

发明人： John E. DeCramer ,  Nathan Doose

IPC分类号： H03H500

CPC分类号： H03H7/42

摘要： A passive, highly efficient, low noise adapter device includes a balun and noise reduction circuitry uniquely configured to converting an unbalanced signal line on a 50 ohm signal line to a balanced signal on a 100 ohm transmission line or vice versa. The device facilitates the use of commercially available and accepted test equipment for accurate transmission measurements on balanced twisted pairs of cables and connectors. A typical utilization includes an adapter device connected between the 100 ohm twisted pair cable and suitable test equipment such as a network analyzer and/or a signal generator for determining losses in the telephone wire and connectors.

摘要翻译： 无源，高效率，低噪声适配器装置包括平衡 - 不平衡转换器和降噪电路，其被独特地配置成将50欧姆信号线上的不平衡信号线转换成100欧姆传输线上的平衡信号，反之亦然。 该设备便于使用市售和接受的测试设备，用于在电缆和连接器的平衡双绞线上进行精确的传输测量。 典型的应用包括连接在100欧姆双绞线电缆和合适的测试设备之间的适配器设备，例如用于确定电话线和连接器中的损耗的网络分析仪和/或信号发生器。

公开(公告)号：US08005206B1

公开(公告)日：2011-08-23

申请号：US11691441

申请日：2007-03-26

申请人： Nathan G. Doose ,  John E. DeCramer

发明人： Nathan G. Doose ,  John E. DeCramer

IPC分类号： H04M1/00 ,  H04M9/00

CPC分类号： H04M11/062

摘要： A VDSL splitter device adapted to receive a multi-frequency signal that includes a POTS signal portion and a VDSL signal portion and outputs separate POTS and VDSL signals. The VDSL splitter device includes an input port that receives the multi-frequency signal, a POTS output port, and a VDSL output port. The VDSL splitter also includes a POTS signal conditioning network electrically connected to the input port and the POTS output port. The POTS signal conditioning network receives the multi-frequency signal from the input port and outputs the POTS signal at the POTS output port. The VDSL splitter device also includes a VDSL signal conditioning network electrically connected to the input port and the VDSL output port. The VDSL signal conditioning network includes a voltage blocker and a VDSL high-pass filter, and is adapted to receive the multi-frequency signal from the input port and outputs the VDSL signal at the VDSL output port.

摘要翻译： 一种VDSL分离器装置，适于接收包括POTS信号部分和VDSL信号部分的多频信号，并输出单独的POTS和VDSL信号。 VDSL分路器装置包括接收多频信号的输入端口，POTS输出端口和VDSL输出端口。 VDSL分路器还包括电连接到输入端口和POTS输出端口的POTS信号调节网络。 POTS信号调理网络从输入端口接收多频信号，并在POTS输出端口输出POTS信号。 VDSL分路器还包括电连接到输入端口和VDSL输出端口的VDSL信号调节网络。 VDSL信号调理网络包括电压阻断器和VDSL高通滤波器，并且适于从输入端口接收多频信号，并在VDSL输出端口输出VDSL信号。

公开(公告)号：US6150896A

公开(公告)日：2000-11-21

申请号：US862763

申请日：1997-05-23

申请人： John E. DeCramer ,  Franklin Bradley Gass

发明人： John E. DeCramer ,  Franklin Bradley Gass

IPC分类号： H03H7/42 ,  H04N7/10

CPC分类号： H04N7/108 ,  H03H7/42

摘要： Disclosed is a passive, highly efficient, low noise coupling device that includes a balun and noise reduction circuitry uniquely configured for converting an unbalanced video signal on a 75 ohm transmission line or connector to a balanced signal on a 100 ohm transmission line or connector and vice versa. The device efficiently allows use of a 100 ohm unshielded twisted pair, such as a conventional telephone cable, for multiplex transmission of video signals or the like in the frequency range of 50 to 500 megahertz. The preferred embodiment has a circuit board with a 75 ohm unbalanced side and a 100 ohm balanced side separated by a balun having a toroid core with a very high permeability. A common mode choke for noise rejection is inserted in the balanced side. A common mode toroid shunt on the device's balanced side provides further noise reduction. An isolation transformer in the device can provide personnel protection and eliminate ground loops. Circuit board traces connecting the components are impedance matched to either the balanced side or the unbalanced side as appropriate.

摘要翻译： 公开了一种无源的，高效率的低噪声耦合装置，其包括平衡 - 不平衡转换和噪声降低电路，其被独特地配置用于将75欧姆传输线或连接器上的不平衡视频信号转换为100欧姆传输线或连接器上的平衡信号 反之亦然。 该设备有效地允许使用100欧姆非屏蔽双绞线，例如常规电话线，用于在50至500兆赫的频率范围内多路传输视频信号等。 优选实施例具有电路板，其具有75欧姆不平衡侧和100欧姆平衡侧，其由具有非常高磁导率的环形磁芯的平衡 - 不平衡转换器分开。 在平衡侧插入用于噪声抑制的共模扼流圈。 器件平衡侧的共模式环形分流器可进一步降低噪声。 设备中的隔离变压器可以提供人员保护并消除接地回路。 连接组件的电路板迹线适当地阻抗匹配平衡侧或不平衡侧。

公开(公告)号：US5495212A

公开(公告)日：1996-02-27

申请号：US358739

申请日：1994-12-19

申请人： John E. DeCramer

发明人： John E. DeCramer

IPC分类号： H03H7/42 ,  H04N7/10

CPC分类号： H03H9/0023 ,  H03H7/42 ,  H03H9/00 ,  H04N7/108

摘要： Disclosed is a passive, highly efficient, low noise coupling device that includes a balun and noise reduction circuitry uniquely configured for converting an unbalanced video signal on a 75 ohm transmission line or connector to a balanced signal on a 100 ohm transmission line or connector and vice versa. The device efficiently allows use of a 100 ohm unshielded twisted pair, such as a conventional telephone cable, for multiplex transmission of video signals or the like in the frequency range of 50 to 500 megahertz. The preferred embodiment has a circuit board with a 75 ohm unbalanced side and a 100 ohm balanced side separated by a balun having a toroid core with a very high permeability. A common mode choke for noise rejection is inserted in the balanced side. The choke has a dual toroid core, one core of high permeability and one of low permeability, and has windings with a 100 ohm characteristic impedance. A common mode toroid shunt on the device's balanced side provides further noise reduction. Circuit board traces connecting the components are impedance matched to either the balanced side or the unbalanced side as appropriate.

摘要翻译： 公开了一种无源的，高效率的低噪声耦合装置，其包括平衡 - 不平衡转换和噪声降低电路，其被独特地配置用于将75欧姆传输线或连接器上的不平衡视频信号转换为100欧姆传输线或连接器上的平衡信号 反之亦然。 该设备有效地允许使用100欧姆非屏蔽双绞线，例如常规电话线，用于在50至500兆赫的频率范围内多路传输视频信号等。 优选实施例具有电路板，其具有75欧姆不平衡侧和100欧姆平衡侧，其由具有非常高磁导率的环形磁芯的平衡 - 不平衡转换器分开。 在平衡侧插入用于噪声抑制的共模扼流圈。 扼流器具有双环形磁芯，一个高磁导率磁芯和一个低磁导率磁芯，并具有100欧姆特性阻抗的绕组。 器件平衡侧的共模式环形分流器可进一步降低噪声。 连接组件的电路板迹线适当地阻抗匹配平衡侧或不平衡侧。