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公开(公告)号：US07418167B2
公开(公告)日：2008-08-26
申请号：US10554794
申请日：2004-04-30
CPC分类号： G02B6/3564 , G02B6/3514 , G02B6/3524 , G02B6/3546 , G02B6/357 , G02B6/3572 , G02B6/3574 , G02B6/358
摘要： An optical switching device, comprises an optical switch and an optical connector receiving means mateable with a connector., means for effectuating switching by engaging a connector in said receiving means, characterised in that said switching effectuating means acts or is acted upon once a connector is sufficiently engaged in the receiving means for optical communication with the connector to occur.
摘要翻译： 一种光学开关装置，包括光学开关和与连接器配合的光学连接器接收装置，用于通过接合所述接收装置中的连接器来实现切换的装置，其特征在于，所述切换实现装置一旦作用或者一旦连接器作用 充分地接合在接收装置中以与连接器发生光通信。
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公开(公告)号：US6044192A
公开(公告)日：2000-03-28
申请号：US91257
申请日：1999-04-12
申请人： Michael Francis Grant , Stephen Day
发明人： Michael Francis Grant , Stephen Day
CPC分类号： G02B6/125 , G02B6/13 , G02B6/132 , G02B2006/12147 , G02B2006/12169
摘要： A planar waveguide structure has, supported on a lower refractive index buffer layer (5), a pair of optical cores (1, 2) that, over at least a portion of their length, are closely spaced. These cores are covered with a layer (6) of cladding material comprising boron and phosphorus doped silica glass deposited by PECVD as a succession of individually annealed layers in order to minimize the incidence of voids in the deposit between the cores.
摘要翻译： PCT No.PCT / GB97 / 00040 Sec。 371日期1999年4月12日 102（e）1999年4月12日PCT PCT 1997年1月8日PCT公布。 公开号WO97 / 25636 日期1997年7月17日平面波导结构具有支撑在较低折射率缓冲层（5）上的一对光核（1,2），其在其长度的至少一部分上紧密间隔开。 这些芯覆盖有包层材料层（6），包括通过PECVD沉积的硼和磷掺杂石英玻璃作为一系列单独退火的层，以便最小化芯之间沉积物中的空隙的发生率。
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公开(公告)号：US06373923B1
公开(公告)日：2002-04-16
申请号：US09185390
申请日：1998-11-03
IPC分类号： H04M124
CPC分类号： H04M1/24 , H04M3/2209 , H04M3/303 , H04M3/305
摘要： To facilitate the use of relatively high frequency data transmission services over a wireline communication resource originally deployed to support low frequency voice band services, an assessment of the wireline communication resource (50-52) is based on attenuation of high frequency test signals, of known original level, that are generated (18) injected into the wireline communication resource from a test point (12). A detector (60) at a potential point of service, e.g. at a customers' premises (14), detects an attenuated level of the test signals and generates a control signal (70, 82), such as a drive current, indicative of the attenuation caused by the wireline communication resource (50-52). The control signal (70, 82) is then indirectly communicated back to the test point (12) in a coded form, and preferably within a voice band transmission. The coded form may be realized as modulation of a power supply provided to the customers' premises by the wireline communication resource, or could be achieved by up-link frequency mixing. In its most basic form, the control signal causes fluctuation on a visual level indicator at the customers' premises and therefore relies on a customer providing a verbal or toned response to the test point as to the level of the visual indicator. Effective attenuation at high frequencies can then be assessed based upon analysis of information coded into the voice band signal and its direct relationship with the original level of the injected high frequency signals.
摘要翻译： 为了便于通过原始部署以支持低频语音频带服务的有线通信资源使用相对高频数据传输服务，有线通信资源（50-52）的评估是基于已知的高频测试信号的衰减 原始级别，从测试点（12）生成（18）注入到有线通信资源中。 在潜在服务点的检测器（60），例如 在客户场所（14）检测测试信号的衰减水平，并产生指示由有线通信资源（50-52）引起的衰减的控制信号（70,82），例如驱动电流。 然后，控制信号（70,82）以编码形式间接地传送回测试点（12），并且优选地在语音频带传输中。 编码形式可以被实现为通过有线通信资源调制提供给客户的房屋的电源，或者可以通过上行链路频率混合来实现。 在其最基本的形式中，控制信号引起客户场所的视觉水平指示器的波动，因此依赖于客户对视觉指示器的水平提供对测试点的口头或调节的响应。 然后可以基于编码到语音频带信号中的信息的分析及其与注入的高频信号的原始电平的直接关系来分析高频处的有效衰减。
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