公开(公告)号：US4817695A

公开(公告)日：1989-04-04

申请号：US127845

申请日：1987-12-02

Applicant: Philip C. Wingert ,  Charles Brecher ,  Han J. Kim ,  Shinhoo Kang

Inventor： Philip C. Wingert ,  Charles Brecher ,  Han J. Kim ,  Shinhoo Kang

IPC: C22C32/00 ,  H01H1/0237 ,  C22C5/06

CPC classification number: H01H1/02376 ,  C22C32/0021 ,  Y10S428/929

Abstract: A material for electrical contact use has the following composition: 6 to 18 percent tin oxide, 0.25 to 1% germanium oxide, 0.2 to 2% indium oxide, balance silver, all percentages by weight. The material exhibits superior erosion characterstics.

公开(公告)号：US5940754A

公开(公告)日：1999-08-17

申请号：US900224

申请日：1992-06-17

Applicant: Leslie D. Servi

Inventor： Leslie D. Servi

IPC: H04B7/185 ,  H04B17/00 ,  H04W84/06 ,  H04Q7/34

CPC classification number: H04B7/18506 ,  H04B17/17 ,  H04B17/18 ,  H04W84/06

Abstract: A method for remotely detecting at a ground station failed multiplexors and radio transceivers in an airborne telephone system is disclosed. Usage activity of the devices is predicted using a normalized gaussian distribution. A three prong test examines actual usage activity of the multiplexors and radio transceivers which is normalized and compared with that predicted utilizing a chi-square analysis with a specified confidence interval to detect abnormalities in the usage activity.

Abstract translation: 一种用于在地面站进行远程检测的方法，公开了一种机载电话系统中的故障多路复用器和无线电收发机。 使用归一化高斯分布来预测装置的使用活动。 三分针测试检查多路复用器和无线电收发器的实际使用活动，其被归一化并与使用具有指定的置信区间的卡方分析预测的预测值进行比较，以检测使用活动中的异常。

公开(公告)号：US5880863A

公开(公告)日：1999-03-09

申请号：US600689

申请日：1996-02-13

Applicant: William C. Rideout ,  Robert J. Regan ,  Douglas Tang

Inventor： William C. Rideout ,  Robert J. Regan ,  Douglas Tang

IPC: H04B10/12 ,  H04B10/213 ,  H04B10/20

CPC classification number: H04B10/2755 ,  H04B10/25753

Abstract: A reconfigurable ring architecture for RF transport over fibers which eliminates the need for multiple pairs of fibers to serve multiple microcells and the need for backup communications lines as a result of system failure due to a fiber break. The ring architecture has a plurality of remote units which are interconnected to a host unit in a serial fashion. The host unit transmits signals to the plurality of remote units and receives signals from the plurality of remote units. Each of the remote units having photodetectors for receiving the transmitted signals and an antenna/transmitter for receiving other signals from another source; a splitter for splitting the transmitted signals into two parts, one part of the signals being output from the remote unit and the other part of the signals being transferred to adjacent remote units and then back to the host unit; and a transmitter for transferring the other signals from the remote unit to adjacent remote units and then back to the host unit. The transmission and reception of signals taking place even in the event of failure of a remote unit or the interconnection between remote units.

Abstract translation: 用于通过光纤进行射频传输的可重构环形架构，其不需要多对光纤来服务多个微小区，并且由于由于光纤断裂而导致的系统故障，备份通信线路的需要。 环形架构具有多个远程单元，其以串行方式互连到主机单元。 主机单元向多个远程单元发送信号并从多个远程单元接收信号。 每个具有用于接收发射信号的光电检测器的远程单元和用于从另一个源接收其它信号的天线/发射器; 分离器，用于将发送的信号分成两部分，一部分信号从远程单元输出，另一部分信号被传送到相邻的远程单元，然后返回到主机单元; 以及用于将其他信号从远程单元传送到相邻远程单元然后返回到主机单元的发射器。 即使在远程单元发生故障或远程单元之间的互连时，信号的发送和接收也会发生。

公开(公告)号：US5793976A

公开(公告)日：1998-08-11

申请号：US625102

申请日：1996-04-01

Applicant: Thomas M. Chen ,  Stephen S. Liu

Inventor： Thomas M. Chen ,  Stephen S. Liu

IPC: H04L12/26 ,  H04L12/56 ,  H04B17/00

CPC classification number: H04L43/0852 ,  H04L12/2697 ,  H04L43/106 ,  H04L43/50 ,  H04L49/205 ,  H04L49/3009 ,  H04L2012/5619 ,  H04L2012/5625 ,  H04L2012/5652

Abstract: Management packets are defined that are modified in the payload by each node along a virtual connection and are used to measure both end-to-end QoS and specific individual intermediate node performance parameters. Management packets are implemented by defining entirely new packets or by modifying ATM OAM cells. Switches or routers for use as intermediate nodes are defined that modify the payload of the management packet and locally measure packet delay and packet loss. An intermediate node measures and records the difference between the arrival and departure times of management packets at that switch utilizing delay-stamp fields within the management packets and either the switch internal routing header or timestamp fields within the packet. At the endpoint of the virtual connection, delay-stamp fields in the management packet indicate individual node delays and the cumulative delay. An intermediate node counts the number of packets it discards and records these values in the payload of the management packet individually and cumulatively.

Abstract translation: 定义了沿着虚拟连接的每个节点在有效负载中修改的管理分组，并且用于测量端到端QoS和特定的单个中间节点性能参数。 通过定义全新的数据包或通过修改ATM OAM信元来实现管理数据包。 定义用作中间节点的交换机或路由器，其修改管理分组的有效载荷并且本地测量分组延迟和分组丢失。 中间节点使用管理分组内的延迟印记字段以及分组内的交换机内部路由头或时间戳字段来测量并记录该交换机上的管理分组的到达和离开时间之间的差异。 在虚拟连接的端点处，管理包中的延迟标记字段指示个别节点延迟和累积延迟。 中间节点对丢弃的数据包数进行计数，并将这些值单独和累积地记录在管理包的有效负载中。

公开(公告)号：US5764745A

公开(公告)日：1998-06-09

申请号：US573271

申请日：1995-12-15

Applicant: May Y. Chan ,  Arthur A. Giordano ,  I-Hsiang Yu

Inventor： May Y. Chan ,  Arthur A. Giordano ,  I-Hsiang Yu

IPC: H04M3/42 ,  H04Q3/00

CPC classification number: H04M3/42297 ,  H04M3/42229 ,  H04Q3/005

Abstract: An apparatus and method for telecommunications network local number portability supports service provider portability, location portability, and service portability. A subscriber is assigned a nongeographic subscriber number that is uniquely mapped to a location-based geographic terminal location number. Different embodiments of the apparatus query different combinations of databases to obtain the nongeographic subscriber number to geographic terminal location number mapping that allows a call to a nongeographic subscriber number to be routed and delivered using existing network routing mechanisms. The originating switch determines whether a received called number is a geographic terminal location number or a nongeographic subscriber number that will require the originating switch to query a database to request that the number be mapped to a geographic terminal location number. The queried database can contain the information for mapping a nongeographic subscriber number to a geographic terminal location number, either for all valid nongeographic subscriber numbers or for only the nongeographic subscriber numbers of a specific service provider, can contain information for mapping all valid nongeographic subscriber numbers to service provider identification codes containing either network routing information or the address of another database, or a combination of both. If the queried database is able to map the called number to a geographic terminal location number, it returns that number to the originating switch for call routing. If the database is unable to map the nongeographic subscriber number to a geographic terminal location number, it can either query a second database for a service provider identification code or itself return a service provider identification code to the originating switch. The first database then uses the received service provider identification code to identify another database to query for the geographic terminal location number, forwards the code to the originating switch which then makes the query, or uses the network routing information to route the call for further handling using existing network routing mechanisms.

公开(公告)号：US5731699A

公开(公告)日：1998-03-24

申请号：US599896

申请日：1996-02-12

Applicant: Vincent A. O'Byrne

Inventor： Vincent A. O'Byrne

IPC: H04B17/00 ,  G01R23/00

CPC classification number: H04B17/391 ,  H04B17/26 ,  H04B17/309

Abstract: Apparatus and method for measuring the radio signal (RF) transmission statistics of a communication channel. The apparatus is arranged to receive and process a wide bandwidth signal from which signal power is measured and from which fading or other such transmission problems can be measured for the wide bandwidth. In parallel with the wide bandwidth receiver there is a narrow bandwidth receiver arranged to receive the same RF signal but to process only a single tone or narrow bandwidth portion of the RF signal. From this narrow bandwidth processing the narrow bandwidth transmission statistical characteristics of the RF transmission channel can be measured simultaneously with the wide bandwidth statistical characteristics. The outputs of the spectrum analyzer are digitized and fed to a computer for storage and for other analysis.

Abstract translation: 用于测量通信信道的无线电信号（RF）传输统计的装置和方法。 该装置被设置为接收和处理从其测量信号功率的宽带信号，并且可以从宽带宽中测量衰落或其它这样的传输问题。 与宽带宽接收机并行地，存在布置成接收相同RF信号但是仅处理RF信号的单个音调或窄带宽部分的窄带宽接收机。 从这种窄带宽处理的窄带宽传输统计特性的RF传输通道可以同时测量宽带宽统计特性。 频谱分析仪的输出被数字化并馈送到计算机进行存储和进行其他分析。

公开(公告)号：US5615035A

公开(公告)日：1997-03-25

申请号：US530796

申请日：1995-09-20

Applicant: Kwang-Tsai Koai

Inventor： Kwang-Tsai Koai

IPC: H04B10/213 ,  H04J14/02 ,  H04B10/20 ,  H04J14/00

CPC classification number: H04B10/278 ,  H04B10/275 ,  H04J14/0298

Abstract: Apparatus is disclosed which is advantageously used in local area, metropolitan-area, and wide-area networks using a dual bus architecture, and more particularly to a dual bus network design having significantly increased distance before termination or regeneration of the optical signal, and using wavelength division multiplexing (WDM) at one optical wavelength to transmit data over the bus and a second optical wavelength to transmit a clock signal and a CATV video signal.

Abstract translation: 公开了使用双总线架构在局域，城域和广域网中有利地使用的装置，更具体地说，涉及在光信号终止或再生之前具有显着增加距离的双总线网络设计，并且使用 波分复用（WDM）在一个光波长上通过总线传输数据和第二光波长以传输时钟信号和CATV视频信号。

公开(公告)号：US5553126A

公开(公告)日：1996-09-03

申请号：US375876

申请日：1995-01-20

Applicant: Douglas D. Tang

Inventor： Douglas D. Tang

IPC: H04J13/00 ,  H04K3/00 ,  H04W12/00 ,  H04M13/00 ,  H04M11/00

CPC classification number: H04K1/00 ,  H04K3/25 ,  H04K3/827 ,  H04K2203/16 ,  H04W12/12

Abstract: A secure wireless party line system that can be used by a group of mobile users to communicate with each other like a wired party line but without the cumbersome inconvenience of long wired tether. The party line function is achieved by the use of a fixed wireless repeater. The fixed wireless repeater receives spread spectrum transmissions from all N mobile users at a frequency f1, and passes the received signals through an RF amplifier and upconverter, and then to an IF amplifier and power divider, which converts the received signals down to a convenient intermediate frequency (IF), and feeds N receive spread spectrum processors, each dedicated to receive a coded spread spectrum transmission from one user. The received voice outputs from the N users are then combined in a N-channel voice data multiplexer, and broadcast at a frequency f2 to all users with a common spread spectrum code word added by a transmit spread spectrum processor. The commonly coded broadcast messages are processed by an RF amplifier and broadcast at frequency f2. All mobile radio receivers receive on the same common code word used by the fixed wireless repeater for broadcasting. Each mobile user on said party line carries a simple single channel radio transceiver. Spread spectrum transmission provides security and anti-jamming performance. Analog and digital embodiments are disclosed.

Abstract translation: 可由一组移动用户使用的安全无线方式线路系统，如有线方式线路相互通信，但没有长时间的有线系绳的麻烦。 派对线路功能是通过使用固定无线中继器实现的。 固定无线中继器以频率f1从所有N个移动用户接收扩频传输，并将接收的信号通过RF放大器和上变频器，然后传送到IF放大器和功率分配器，其将接收到的信号转换成方便的中间 频率（IF），并且馈送N个接收扩频处理器，每个专用于从一个用户接收编码的扩频传输。 然后将来自N个用户的接收到的语音输出组合在N信道语音数据多路复用器中，并以频率f2广播到具有由发射扩频处理器添加的公共扩频码字的所有用户。 通常编码的广播消息由RF放大器处理，并在频率f2进行广播。 所有移动无线电接收机接收固定无线中继器用于广播的相同公共码字。 所述派对线路上的每个移动用户携带简单的单信道无线电收发机。 扩频传输提供安全性和抗干扰性能。 公开了模拟和数字实施例。

公开(公告)号：US5479202A

公开(公告)日：1995-12-26

申请号：US319171

申请日：1994-10-06

Applicant: Walter J. Beriont

Inventor： Walter J. Beriont

IPC: H04N7/173 ,  H04N21/2368 ,  H04N21/434

CPC classification number: H04N7/173 ,  H04N21/42607 ,  H04N21/4305 ,  H04N21/4622 ,  H04N21/658 ,  H04N21/472

Abstract: A network interface module operably connected to a subscriber's television receiver and to a switched broadband digital network includes a fiber-compatible digital transceiver. A downlink receiver in the transceiver detects video/audio/data information that is time-multiplexed within a serially transmitted digital signal optically transmitted by the switched digital network as a broadband digital downlink channel. The detected information is decoded into a parallel format of video/data samples, audio samples, and recovered sample clock that are applied to a digital switch in the television receiver.

Abstract translation: 可操作地连接到用户的电视接收机和交换宽带数字网络的网络接口模块包括光纤兼容的数字收发器。 收发信机中的下行链路接收机检测由作为宽带数字下行链路信道的交换数字网络光传输的串行发送的数字信号中的时间复用的视频/音频/数据信息。 检测到的信息被解码为应用于电视接收机中的数字开关的视频/数据样本，音频样本和恢复的采样时钟的并行格式。

公开(公告)号：US5460318A

公开(公告)日：1995-10-24

申请号：US252478

申请日：1994-06-01

Applicant: Robert A. Boudreau ,  Richard H. Sargent

Inventor： Robert A. Boudreau ,  Richard H. Sargent

IPC: B23K1/00 ,  H01S5/02 ,  B23K101/40 ,  B23K31/02

CPC classification number: B23K1/0008 ,  H01S5/0224 ,  H01S5/02272

Abstract: A solder geometry for epi-down diebonding an optoelectronic component to a heat sink platform includes a solder deposition pattern having exposure windows to create gaps or diebond bridges in the solder pattern. The active regions of the components are disposably registered within the gaps of the solder pattern.

Abstract translation: 用于将光电子部件粘附到散热器平台的用于外延下沉的焊料几何形状包括具有曝光窗口的焊料沉积图案，以在焊料图案中产生间隙或沉陷桥。 部件的有源区域可部分地登记在焊料图形的间隙内。