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21. 发明授权

US07966008B2 Use of location awareness to control radio frequency interference in a healthcare environment 有权
标题翻译：使用位置感知来控制医疗保健环境中的射频干扰
公开(公告)号：US07966008B2
公开(公告)日：2011-06-21
申请号：US11065396
申请日：2005-02-25
申请人： Alan F. Graves , Brian Johnson , Jeff Fitchett , Guy Duxbury , Brian Vezza
发明人： Alan F. Graves , Brian Johnson , Jeff Fitchett , Guy Duxbury , Brian Vezza
IPC分类号： H04M3/00 , H04Q5/22
CPC分类号： H04W4/04 , A61N1/08 , H04W48/04 , H04W52/24 , H04W52/241 , H04W52/242 , H04W52/243 , H04W52/248 , H04W52/50
摘要： A method of controlling RF interference in a healthcare establishment. The method comprises receiving data regarding a wirelessly detectable tag associated to a first piece of equipment within the healthcare establishment; determining whether the first piece of equipment is positioned relative to a second piece of equipment within the healthcare establishment such that an RF interference constraint is violated, based at least in part on the data regarding the wirelessly detectable tag; and responsive to the RF interference constraint being violated, causing a variation in RF power transmitted by at least one of the first piece of equipment and the second piece of equipment. In this way, wireless communication equipment can be used in the healthcare establishment without deleterious effects on sensitive medical equipment.
摘要翻译：一种在医疗保健机构中控制RF干扰的方法。所述方法包括接收关于与所述保健机构内的第一设备相关联的无线可检测标签的数据; 至少部分地基于关于无线可检测标签的数据，确定所述第一设备是否相对于所述保健机构内的第二设备定位以使得RF干扰约束被违反; 并且响应于所述RF干扰约束被违反，引起由所述第一设备和所述第二设备中的至少一个传输的RF功率的变化。以这种方式，无线通信设备可以在医疗机构中使用，对敏感的医疗设备无害。

22. 发明申请

US20080089254A1 WIRELESS-ENABLED DEVICE WITH CAPABILITY OF RESPONDING TO CHANGES IN OPERATIONAL STATE 有权
标题翻译：具有应对操作状态变化能力的无线启动设备
公开(公告)号：US20080089254A1
公开(公告)日：2008-04-17
申请号：US11613375
申请日：2006-12-20
申请人： Alan F. Graves , Raymond Bruce Wallace , Guy Michael Amyon Farquharson Duxbury
发明人： Alan F. Graves , Raymond Bruce Wallace , Guy Michael Amyon Farquharson Duxbury
IPC分类号： H04B7/00 , H04Q7/20 , G08B1/08
CPC分类号： H04W8/22 , H04W52/0277 , H04W52/0296 , Y02D70/142 , Y02D70/166
摘要： A device suitable for wireless communication with a network entity. The device comprises a functional unit configured to monitor an operational state of the device and, in response to detecting that the device is in a de-powered operational state, to inform the network entity of an ability of the device to wirelessly communicate with the network entity during a future time interval while the device remains in a de-powered operational state. A second functional unit capable of wireless communication with the network entity may also be provided and may be selectably powered from either a main power source or an alternate power source such that the second functional unit is powered from the alternate power source during the future time interval and becomes unpowered from the alternate power source after the future time interval. Thus, de-powered devices can be located and communicated with more easily.
摘要翻译：适合与网络实体进行无线通信的设备。该设备包括：功能单元，被配置为监视设备的操作状态，并且响应于检测到设备处于去供电操作状态，以通知网络实体设备与网络无线通信的能力在设备保持处于去电动作状态的未来时间间隔内。还可以提供能够与网络实体进行无线通信的第二功能单元，并且可以从主电源或备用电源选择性地供电，使得第二功能单元在未来时间间隔期间从备用电源供电并且在未来时间间隔之后变得不再从备用电源供电。因此，可以更容易地定位和通信去驱动的设备。

23. 发明授权

US07212739B2 Protection switching arrangement for an optical switching system 有权
标题翻译：光开关系统的保护开关装置
公开(公告)号：US07212739B2
公开(公告)日：2007-05-01
申请号：US11287259
申请日：2005-11-28
申请人： Alan F. Graves , Dallas F. Smith
发明人： Alan F. Graves , Dallas F. Smith
IPC分类号： H04B10/00
CPC分类号： G02B6/359 , G02B6/3512 , G02B6/3546 , G02B6/356 , H04J14/0227 , H04J14/0241 , H04J14/0283 , H04J14/0289 , H04J14/0291 , H04J14/0293 , H04J14/0295 , H04J14/0297 , H04Q11/0005 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/003 , H04Q2011/0039 , H04Q2011/0043 , H04Q2011/0075 , H04Q2011/0083
摘要： A protection arrangement for an optical switching system includes protection switching for switch planes in the optical core and for ports in the tributary cards. For a multiple layer switch core protection is also provided between layers. A first layer is for switching optical channels. The protection switches used may be 1×N, 2×N or 3×N MEMS optical switches. The 1×N MEMS provides for protection switching. The 2×N MEMS provides protection switching and testing capability. The 3×N MEMS provides for protection switching, testing and backup of the protection switching. Application of these protection switches is shown in lambda plane switch cores, multiple layer switch cores and combined switch cores.
摘要翻译：用于光交换系统的保护装置包括用于光核心中的开关平面和辅助卡中的端口的保护切换。对于多层交换机，层之间也提供核心保护。第一层是用于切换光通道。所使用的保护开关可以是1xN，2xN或3xN MEMS光开关。 1xN MEMS提供保护切换。 2xN MEMS提供保护切换和测试能力。 3xN MEMS为保护开关的保护切换，测试和备份提供保障。这些保护开关的应用在λ平面交换机核心，多层交换机核心和组合交换机核心中显示。

24. 发明授权

US07120356B2 Connection verification for optical switches 有权
公开(公告)号：US07120356B2
公开(公告)日：2006-10-10
申请号：US09735537
申请日：2000-12-14
申请人： Alan F. Graves , Andrew J. Bryant , Andre J. Van Schyndel , John G. Gruber
发明人： Alan F. Graves , Andrew J. Bryant , Andre J. Van Schyndel , John G. Gruber
IPC分类号： H04B10/08
CPC分类号： H04J14/0212 , H04J14/02 , H04J14/021 , H04Q11/0005 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0043 , H04Q2011/0083
摘要： A connection verification system that provides substantially non-intrusive connection verification for an optical switch, achieved by correlating the low-frequency contents of the input and switched signals. The results of the correlation process are compared against a connection map to determine whether the switch has operated correctly and to identify, if possible, which mis-connections have taken place. The system includes a selection unit for controllably admitting individual ones of the input signals and individual ones of the switched signals and a verification unit connected to the selection unit, for controlling operation of the selection unit as a function of a connection map and performing relative-delay-dependent signal processing operations on the signals admitted by the selection unit so as to identify connections established through the switching unit and determine their consistency with the connection map. The relative-delay-dependent signal processing operations may be based on correlation or anti-correlation, depending on the operational requirements of the invention.

25. 发明授权

US06882800B1 Optical switching system for switching opticals signals in wavelength groups 有权
标题翻译：用于在波长组中切换光信号的光交换系统
公开(公告)号：US06882800B1
公开(公告)日：2005-04-19
申请号：US09703631
申请日：2000-11-02
申请人： Alan F. Graves
发明人： Alan F. Graves
IPC分类号： G02B6/34 , G02B6/38 , H04J14/02 , H04Q11/00 , H04J14/00
CPC分类号： H04Q11/0062 , G02B6/3807 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04Q2011/0075
摘要： An optical switching system includes multiple layers for switching optical signals. A first layer is for switching optical channels. A second layer is for switching groups of optical channels. A third layer is for switching composite optical signals. Between layers demultiplexing and multiplexing of signals allows switching within a single switch core at any level from fiber to wavelength group to optical wavelengths. Optical amplifiers between layers compensate for losses within the switch and within demultiplexers and multiplexers. One configuration provided additional multiplexing and demultiplexing to allow direct connection between the first and third layers. Another configuration shares optical switching matrices between the first and third layers.
摘要翻译：光交换系统包括用于切换光信号的多层。第一层是用于切换光通道。第二层是用于切换光通道组。第三层是用于切换复合光信号。层之间解复用和复用信号允许在从光纤到波长组到光波长的任何级别的单个交换机核心内进行切换。层之间的光放大器补偿了交换机内部和解复用器和多路复用器内的损耗。一种配置提供了额外的复用和多路分解以允许第一和第三层之间的直接连接。另一个配置在第一和第三层之间共享光学开关矩阵。

26. 发明授权

US06657186B2 Chromatic dispersion discriminator 有权
公开(公告)号：US06657186B2
公开(公告)日：2003-12-02
申请号：US10175065
申请日：2002-06-20
申请人： Alan F. Graves
发明人： Alan F. Graves
IPC分类号： G01N2125
CPC分类号： H04B10/25133
摘要： A dispersion discriminator and method for determining the amount of dispersion in an optical signal. The discriminator includes first and second dispersion arms for causing first and second additional amounts of dispersion to be added in first and second portions of the optical signal, respectively. The first and second additional amounts are of opposite polarities and preferably of substantially equal magnitude. The discriminator includes a detector capable of receiving the first and second portions of the optical signal from the arms; detecting, for each of a plurality of frequencies, a difference in a characteristic of the first and second portions; determining a particular frequency at which the difference falls outside a predetermined range; and mapping the particular frequency and the difference at that frequency to a magnitude of dispersion in the optical signal. Advantageously, this allows the dispersion of an optical link to be measured without knowledge of the spectrum of the optical signal travelling on that link.

27. 发明授权

US06366716B1 Optical switching device 有权
标题翻译：光开关器件
公开(公告)号：US06366716B1
公开(公告)日：2002-04-02
申请号：US09593697
申请日：2000-06-15
申请人： Alan F. Graves
发明人： Alan F. Graves
IPC分类号： G02B626
CPC分类号： H04Q11/0005 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0039
摘要： A single Hybrid Optical Integrated Circuit that contains an optical switch having six groups of ports using micro-electron mechanical or six-port MEMS for short, amplifiers, laser pumps (or inputs from laser pumps) in a single package. This is done either by providing alignment features between the MEMS devices and the amplifier silicon substrate, or by building both on a common silicon substrate. The optical switching device provides the expansion capability and add/drop functionality desired via the optical expansion input and output ports and the optical inter-matrix input and output ports, respectively. Additionally, since these separate matrices of divertors are used to selectively couple the ports of the device, less divertors are required than if one large matrix of divertors were used. Further, the optical path length, a major issue in the design of such devices, is less in this structure than it would be in a single MEMS crosspoint providing a similar function. The six-port arrangement facilitates mechanical fabrication compared to eight-port arrangements. The resultant module can be used to implement the complete optical path for one plane of a wavelength-plane optical switch, with built in access to an external wavelength converter, an ability to expand the wavelength plane size by use of expansion ports and an ability to compensate for amplitude errors in the switched signals.
摘要翻译：单个混合光学集成电路，其包含具有六组端口的光开关，其在单个封装中使用微电子机械或六端口MEMS，短路放大器，激光泵（或来自激光泵的输入）。这可以通过在MEMS器件和放大器硅衬底之间提供对准特征，或者通过在公共硅衬底上构建两者来完成。光开关器件分别通过光扩展输入和输出端口以及光学矩阵间输入和输出端口提供所需的扩展能力和加/减功能。另外，由于这些单独的偏滤器矩阵用于选择性地耦合装置的端口，所以与使用一个大的偏滤器矩阵相比，需要更少的偏滤器。此外，在这种结构中，光路长度是这样的器件的设计中的主要问题，而不是提供类似功能的单个MEMS交叉点。与八端口布置相比，六端口布置有助于机械制造。所得到的模块可用于实现波长平面光开关的一个平面的完整光路，其内置有对外部波长转换器的访问，通过使用扩展端口扩展波长平面尺寸的能力以及补偿开关信号中的振幅误差。

28. 发明授权

US5021880A Digital video signal compression 失效
标题翻译：数字视频信号压缩
公开(公告)号：US5021880A
公开(公告)日：1991-06-04
申请号：US538627
申请日：1990-06-13
申请人： Alan F. Graves , Raymond L. Greenfield , Barry B. Hagglund
发明人： Alan F. Graves , Raymond L. Greenfield , Barry B. Hagglund
IPC分类号： H04N7/015 , H04N7/12 , H04N7/26 , H04N7/46 , H04N11/04
CPC分类号： H04N19/186 , H04N11/042 , H04N19/59 , H04N7/0152 , H04N7/125
摘要： Digital samples of an HDTV video signal are compressed by determining groups each of three successive samples in the video signal lines, the groups in adjacent lines being offset from one another, and transmitting only a first sample in each group. Each of the second and third samples in each group is compared with magnitudes averaged from three adjacent, transmitted, first samples, one in each of the previous, same, and following video signal lines, to determine a closest match. A 2-bit code representing this closest match is transmitted for each of these second and third samples in each group. The groups, and hence the first samples, are offset from one another in adjacent video signal lines, and the sampling frequency is desirably an odd multiple of half the video signal line frequency to offset the sampled pixels in adjacent video signal lines. The invention provides a high compression ratio, which can be further increased by DPCM encoding of the successive first samples.
摘要翻译：通过确定视频信号线中的三个连续样本中的每一个，相邻线中的组彼此偏移，并且仅传送每组中的第一样本，压缩HDTV视频信号的数字样本。将每组中的每个第二和第三采样与来自三个相邻，发射的第一采样的平均值，前一个，相同和后续视频信号线中的每一个进行比较，以确定最接近的匹配。对于每个组中的这些第二和第三样本的每一个，发送表示最接近的匹配的2比特代码。这些组以及因此的第一采样在相邻视频信号线中彼此偏移，并且采样频率希望是视频信号线频率的一半的奇数倍以偏移相邻视频信号线中的采样像素。本发明提供了高压缩比，其可以通过连续的第一样品的DPCM编码进一步增加。

29. 发明授权

US4876682A Switching tdm digital signals 失效
标题翻译：切换tdm数字信号
公开(公告)号：US4876682A
公开(公告)日：1989-10-24
申请号：US862730
申请日：1986-05-13
申请人： Alan F. Graves , Paul A. Littlewood , Johannes S. Weiss
发明人： Alan F. Graves , Paul A. Littlewood , Johannes S. Weiss
IPC分类号： H04J3/08 , H04J3/16 , H04Q11/08
CPC分类号： H04Q11/08 , H04J3/08 , H04J3/1611
摘要： Digital signals are multiplexed in tdm (time division multiplex) frames each consisting of an integral number of sub-frames each consisting of an integral number of sub-sub-frames, whereby the tdm frame, sub-frame, and sub-sub-frame periods are harmonically related. The signals are switched in a hierarchy of time switches which are operated sequentially and cyclically with frame periods corresponding to respective ones of these harmonically related periods, whereby the switches switch services at respective harmonically related bandwidths. The harmonic tdm frame structure and the hierarchical switch arrangement combine to facilitate the switching of many services with various bandwidths using relatively small switches.
摘要翻译：数字信号在tdm（时分复用）帧中被复用，每帧由整数个子帧组成，每个子帧由整数个子子帧组成，由此tdm帧，子帧和子子帧时期是和谐相关的。这些信号按照与这些谐波相关周期中的相应周期对应的帧周期顺序地和周期性地操作的时间开关的层级切换，由此交换机以相应的谐波相关带宽切换业务。谐波tdm帧结构和分层交换机布置结合起来，以便利用相对较小的交换机来切换具有各种带宽的许多业务。

30. 发明授权

US4825286A Digitization of video signals 失效
标题翻译：视频信号数字化
公开(公告)号：US4825286A
公开(公告)日：1989-04-25
申请号：US246066
申请日：1988-09-19
申请人： Alan F. Graves
发明人： Alan F. Graves
IPC分类号： H03M1/08 , H03M1/12 , H04N7/24 , H04N7/54 , H04N11/04 , H04N7/04
CPC分类号： H04N7/54 , H04N19/90 , H04N7/24
摘要： A band limited composite video television signal has summed with it, at a reduced amplitude, a frequency modulated audio carrier signal at a higher frequency. The sum signal is sampled and digitized at a sampling frequency which is at least twice the audio carrier frequency and is more than three times the frequency of a color subcarrier in the composite video signal, and is not related thereto. The sampling frequency is derived from a transmission network, whereby stuffing of the digitized signal for transmission is eliminated, and multiplexing of several digitized signals is facilitated. At a decoder, the digital signal is converted back into an analog signal and the audio carrier signal amplitude boosted using filtering. Picture quality of a reproduced television signal is enhanced in that quantizing noise in the video signal becomes uncorrelated from line to line and frame to frame, due to dithering effects by the audio carrier signal.

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