公开(公告)号：US06870724B2

公开(公告)日：2005-03-22

申请号：US10764211

申请日：2004-01-22

Applicant: Ramon C. W. Chea, Jr.

Inventor： Ramon C. W. Chea, Jr.

IPC: H01H1/00 ,  H02H9/04 ,  H04M3/18 ,  H02H1/00

CPC classification number: H02H9/04 ,  H01H1/0036 ,  H04M3/18

Abstract: The present invention discloses systems and methods for protecting electronic devices (switching and non-switching) such as micro electro-mechanical system (MEMS) devices and solid state relays due to lightning exposure or electrical power surges in double end exposed systems. Over voltage suppressors and over current detectors are used to limit the exposure of high voltages and currents to the MEMS and solid-state relay devices in double end exposed systems.

Abstract translation: 本发明公开了用于保护电子设备（开关和非开关）的系统和方法，例如微机电系统（MEMS）装置和固态继电器，这是由于双端暴露系统中的雷电暴露或电力浪涌。 过电压抑制器和过电流检测器用于限制高端电压和电流对双端暴露系统中的MEMS和固态继电器的暴露。

公开(公告)号：US06480575B2

公开(公告)日：2002-11-12

申请号：US10136767

申请日：2002-04-30

Applicant: Ramon C. W. Chea, Jr. ,  P. Kingston Duffie

Inventor： Ramon C. W. Chea, Jr. ,  P. Kingston Duffie

IPC: H04M124

CPC classification number: H04Q11/0421 ,  H04L43/50 ,  H04M3/2209 ,  H04M3/30 ,  H04M11/062 ,  H04M2203/056 ,  H04Q2213/13039 ,  H04Q2213/1316 ,  H04Q2213/1319 ,  H04Q2213/13298 ,  H04Q2213/13305 ,  H04Q2213/1332 ,  H04Q2213/13322

Abstract: The present invention is directed to a remotely actuated splitter bypass function (RASB) working in conjunction with a test head at the central office for testing and maintaining copper loops in the digital subscriber line environment. The RASB allows a competitive local exchange carrier to test and maintain the xDSL portion of the copper loop with minimal interference and disturbance to/from the plain old telephone system (POTS) service by bypassing the central office splitter. The splitter bypass operation includes the steps of selecting a copper loop pair for testing, actuating a first relay for monitor mode, actuating a second relay for bypass mode, testing the selected copper loop, and resetting the first and second relays back to normal mode. By applying positive and negative voltages from the tip and ring with respect to ground, various relays can be set (actuated) and reset to provide multiple modes of operations. In this manner, relays can be designed to respond in certain voltage levels and polarities.

公开(公告)号：US4387273A

公开(公告)日：1983-06-07

申请号：US180751

申请日：1980-08-25

Applicant: Ramon C. W. Chea, Jr.

Inventor： Ramon C. W. Chea, Jr.

IPC: H03H11/46 ,  H04M19/00

CPC classification number: H04M19/005

Abstract: A subscriber line interface circuit is described wherein the transverse and longitudinal termination impedances may be independently controlled; and wherein the equivalent termination impedance of a subscriber line/trunk as appears to the central office can be adjusted upward or downward from a lower resistance value, with longitudinal balance (also known as the common mode rejection) being determined by the matching of feed resistors. The foregoing interface circuit is implementable as a monolithic integrated circuit having low power dissipation, improved power bandwidth requirements, and lower voltage breakdown requirements for integrated circuits; all resulting in an improved telephone line interface circuit. Voltage feedback or current feedback may be employed in a circuit to synthesize the proper ac transverse termination impedance from a known dc resistance, for example, from the feed line resistors in a telephone line circuit.

Abstract translation: 描述了用户线接口电路，其中横向和纵向端接阻抗可以被独立地控制; 并且其中可以从较低的电阻值向上或向下调节中心局所显示的用户线路/干线的等效终端阻抗，纵向平衡（也称为共模抑制）由馈电电阻的匹配确定 。 上述接口电路可实现为具有低功耗，改善的功率带宽要求以及集成电路的较低电压击穿要求的单片集成电路; 所有这些都导致改进的电话线路接口电路。 可以在电路中采用电压反馈或电流反馈来从已知的直流电阻（例如来自电话线电路中的馈线电阻）合成适当的交流横向终端阻抗。

公开(公告)号：US06937157B1

公开(公告)日：2005-08-30

申请号：US10146682

申请日：2002-05-13

Applicant: Ramon C. W. Chea, Jr. ,  P. Kingston Duffie ,  Timothy John Hodgkinson

Inventor： Ramon C. W. Chea, Jr. ,  P. Kingston Duffie ,  Timothy John Hodgkinson

IPC: G08B21/00 ,  H04Q1/14

CPC classification number: H04Q1/145 ,  H04B7/026 ,  H04Q1/136 ,  H04Q2201/02 ,  H04Q2201/12

Abstract: The present invention to provide a “smart cable system” for high density metallic cross connect systems. In particular, this invention relates to the physical structure of cables and associated hardware needed to form the “smart cable system” for interconnecting cards in shelves and racks of high density metallic cross connect switching systems. This invention provides the cable installer the ability to connect cables to cards with minimal errors by using visual indicators. The visual indicators guide the cable installer such that he/she can properly install the cables into the appropriate connectors. The present invention also provides a means for detecting when and where the cables are connected within the cross connect system.

Abstract translation: 本发明提供一种用于高密度金属交叉连接系统的“智能电缆系统”。 特别地，本发明涉及形成用于在高架金属交叉连接交换系统的架子和机架中互连卡的“智能电缆系统”所需的电缆和相关硬件的物理结构。 本发明提供了电缆安装者通过使用视觉指示器将电缆连接到具有最小错误的卡的能力。 视觉指示器指导电缆安装人员，使他/她能够正确地将电缆安装到适当的连接器中。 本发明还提供一种用于检测电缆在交叉连接系统内的连接何时何处的装置。

公开(公告)号：US06903939B1

公开(公告)日：2005-06-07

申请号：US10126281

申请日：2002-04-19

Applicant: Ramon C. W. Chea, Jr. ,  P. Kingston Duffie ,  Timothy John Hodgkinson

Inventor： Ramon C. W. Chea, Jr. ,  P. Kingston Duffie ,  Timothy John Hodgkinson

IPC: H05K7/06 ,  H05K7/14

CPC classification number: H05K7/1445

Abstract: The present invention discloses a physical shelf architecture for high density metallic cross connect systems. The present invention is intended to overcome the problems associated with the physical interconnections of metallic paths in cross connect switching systems. The physical architecture of the present invention effectively performs physical interconnections required by high density metallic cross connect systems. The physical architecture enables for a scalable design and structure of racks and shelves. In particular, inter-connect levels can be performed with devices-to-devices, boards-to-boards, shelves-to-shelves, and racks-to-racks.

Abstract translation: 本发明公开了一种用于高密度金属交叉连接系统的物理架构架构。 本发明旨在克服与交叉连接交换系统中的金属路径的物理互连相关的问题。 本发明的物理结构有效地执行了高密度金属交叉连接系统所需的物理互连。 物理架构可实现机架和货架的可扩展设计和结构。 特别地，可以使用设备到设备，板对板，货架到货架和机架到机架来执行互连级别。

公开(公告)号：US06574313B1

公开(公告)日：2003-06-03

申请号：US09569962

申请日：2000-05-12

Applicant: Ramon C. W. Chea, Jr. ,  P. Kingston Duffie

Inventor： Ramon C. W. Chea, Jr. ,  P. Kingston Duffie

IPC: H04M1100

CPC classification number: H04Q11/04 ,  H04Q2213/13039 ,  H04Q2213/13082 ,  H04Q2213/13166

Abstract: The present invention relates to a system and method for providing a “lifeline” service to a VoDSL customer despite an electrical power outage or integrated access device failure at the customer premise. A bypass function is implemented in an integrated access device at the customer premise to provide the lifeline service. The bypass function is preferably a relay, which can be automatically activated to provide the lifeline service under various conditions. The bypass relay, working in conjunction with systems in the central office and the regional switching center allows the customer to obtain an active telephone line during power outages or integrated access device failures. Electrical power is also supplied to the customer's premise from the central office, thereby allowing the customer to use a telephone line in the traditional manner. The present invention can further be implemented for any number of customers and telephone lines.

Abstract translation: 本发明涉及一种用于向VoDSL客户提供“救生线”服务的系统和方法，尽管在用户场所出现电力中断或集成接入设备故障。 旁路功能在客户端的集成接入设备中实现，以提供生命线服务。 旁路功能优选地是继电器，其可以被自动激活以在各种条件下提供救生线服务。 旁路继电器与中央办公室和区域交换中心的系统一起工作，允许客户在停电或集成接入设备故障期间获得有效的电话线路。 电力也从中心局提供给客户的前提，从而允许客户以传统的方式使用电话线。 本发明可以进一步实现任何数量的客户和电话线。

公开(公告)号：US06574309B1

公开(公告)日：2003-06-03

申请号：US09516345

申请日：2000-03-01

Applicant: Ramon C. W. Chea, Jr. ,  P. Kingston Duffie

Inventor： Ramon C. W. Chea, Jr. ,  P. Kingston Duffie

IPC: H04M124

CPC classification number: H04Q11/0421 ,  H04L43/50 ,  H04M3/2209 ,  H04M3/30 ,  H04M11/062 ,  H04M2203/056 ,  H04Q2213/13039 ,  H04Q2213/1316 ,  H04Q2213/1319 ,  H04Q2213/13298 ,  H04Q2213/13305 ,  H04Q2213/1332 ,  H04Q2213/13322

Abstract: The present invention is directed to a remotely actuated splitter bypass function (RASB) working in conjunction with a test head at the central office for testing and maintaining copper loops in the digital subscriber line environment. The RASB allows a competitive local exchange carrier to test and maintain the xDSL portion of the copper loop with minimal interference and disturbance to/from the plain old telephone system (POTS) service by bypassing the central office splitter. The splitter bypass operation includes the steps of selecting a copper loop pair for testing, actuating a first relay for monitor mode, actuating a second relay for bypass mode, testing the selected copper loop, and resetting the first and second relays back to normal mode. By applying positive and negative voltages from the tip and ring with respect to ground, various relays can be set (actuated) and reset to provide multiple modes of operations. In this manner, relays can be designed to respond in certain voltage levels and polarities.

Abstract translation: 本发明涉及一种远程启动的分路旁路功能（RASB），其与中心局的测试头一起工作，用于在数字用户线路环境中测试和维护铜环路。 RASB允许有竞争力的本地交换运营商通过绕过中心局分离器，以最小的干扰和对普通老式电话系统（POTS）服务的干扰，来测试和维护铜线路的xDSL部分。 分路器旁路操作包括以下步骤：选择用于测试的铜环对，启动用于监视模式的第一继电器，致动用于旁路模式的第二继电器，测试所选择的铜回路，以及将第一和第二继电器复位回正常模式。 通过从尖端和环相对于地面施加正和负电压，可以设置（启动）和复位各种继电器以提供多种操作模式。 以这种方式，可以将继电器设计成在某些电压电平和极性下进行响应。

公开(公告)号：US06546089B1

公开(公告)日：2003-04-08

申请号：US09579964

申请日：2000-05-26

Applicant: Ramon C. W. Chea, Jr. ,  P. Kingston Duffie

Inventor： Ramon C. W. Chea, Jr. ,  P. Kingston Duffie

IPC: H04M1100

CPC classification number: H04Q11/04 ,  H04Q2213/13039 ,  H04Q2213/13082 ,  H04Q2213/13166

Abstract: The present invention relates to systems and methods for providing a “lifeline” service to a VoDSL customer despite an electrical power outage or integrated access device failure at the customer premise. A bypass function is implemented in an integrated access device at the customer premise to provide the lifeline service. The bypass function is preferably a relay, which can be automatically activated to provide the lifeline service under various conditions. The bypass relay, working in conjunction with systems in the central office and the regional switching center allows the customer to obtain an active telephone line during power outages or integrated access device failures. Electrical power is also supplied to the customer's premise from the central office, thereby allowing the customer to use a telephone line in the traditional manner. The present invention can further be implemented for any number of customers and telephone lines.

Abstract translation: 本发明涉及用于向VoDSL客户提供“救生线”服务的系统和方法，尽管在用户场所出现电力中断或集成接入设备故障。 旁路功能在客户端的集成接入设备中实现，以提供生命线服务。 旁路功能优选地是继电器，其可以被自动激活以在各种条件下提供救生线服务。 旁路继电器与中央办公室和区域交换中心的系统一起工作，允许客户在停电或集成接入设备故障期间获得有效的电话线路。 电力也从中心局提供给客户的前提，从而允许客户以传统的方式使用电话线。 本发明可以进一步实现任何数量的客户和电话线。

公开(公告)号：US06453016B1

公开(公告)日：2002-09-17

申请号：US09966488

申请日：2001-09-27

Applicant: Ramon C. W. Chea, Jr.

Inventor： Ramon C. W. Chea, Jr.

IPC: H04M124

CPC classification number: H04M3/301 ,  H04M3/2209

Abstract: The invention presented herein is directed to a remotely addressable maintenance unit (RAMU) working in conjunction with a test head at the central office for detecting and locating faults in digital subscriber loop (DSL) and/or plain old telephone system (POTS) environments. The RAMU includes circuitry for setting and resetting one or more relays for either normal or testing/maintenance mode. The present invention provides a system and method for addressing the RAMU by applying either positive or negative voltages from the tip to ground, from ring to ground, and from tip and ring to ground. In this manner, individual RAMUs can be defined/designed to respond in certain voltage levels and polarities. Accurate fault detection and sectionalization is achieved by the combination of the addressing capabilities enumerated herein, and the impedance signature designed into the RAMU, working in concert with a test head in the central office.

Abstract translation: 本文提出的本发明涉及一种与中心局的测试头结合工作的可远程寻址维护单元（RAMU），用于检测和定位数字用户回路（DSL）和/或普通老式电话系统（POTS）环境中的故障​​。 RAMU包括用于设置和复位一个或多个继电器用于正常或测试/维护模式的电路。 本发明提供了一种用于通过从尖端到地面，从环到地，以及从尖端和环到地施加正或负电压来寻址RAMU的系统和方法。 以这种方式，可以将单个RAMU定义/设计成在某些电压电平和极性下进行响应。 通过将本文列举的寻址能力和设计到RAMU中的阻抗特征的组合实现精确的故障检测和分段，与中心局的测试头协调工作。

公开(公告)号：US4602130A

公开(公告)日：1986-07-22

申请号：US660585

申请日：1984-10-15

Applicant: Ramon C. W. Chea, Jr.

Inventor： Ramon C. W. Chea, Jr.

IPC: H04M19/00

CPC classification number: H04M19/008

Abstract: A dual voltage source feed circuit arrangement for a two-wire telephone line circuit includes an auxiliary voltage source placed across the two-wire line and switchably controlled to connect the voltage source across the line to thereby supply an additional current to the line which current provides a optimum value of talk current to the line.

Abstract translation: 用于双线电话线路电路的双电压源馈电电路装置包括放置在双线线路上的辅助电压源，并可切换地控制以将电压源跨越线路连接，从而向电流提供的线路提供额外的电流 通话线路的最佳值。