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公开(公告)号：US20180102849A1
公开(公告)日：2018-04-12
申请号：US15399563
申请日：2017-01-05
申请人： Paul A. MORTON , Jacob KHURGIN
发明人： Paul A. MORTON , Jacob KHURGIN
IPC分类号： H04B10/2575
CPC分类号： H04B10/25759 , H01Q3/2676 , H04B10/40 , H04B10/50 , H04B10/516 , H04B2210/006 , H04Q5/00 , H04Q11/00
摘要： High-performance ultra-wideband Receive Phased Array Sensors (Rx-PAS) are disclosed, which have unique capabilities, enabled through photonic integrated circuits and novel optical architectures. Unique capabilities for a Rx-PAS are provided by wafer scale photonic integration including heterogeneous integration of III-V materials and ultra-low-loss silicon nitride waveguides. Novel aspects include optical multiplexing combining wavelength division multiplexing and/or a novel extension to array photodetectors providing the capability to combine many RF photonic signals with very low loss. The architecture includes tunable optical down-conversion, moving a chosen frequency band to baseband with high dynamic range; creating also a single frequency band channelizer, which is also expanded to create a multiple tunable frequency band channelizer. Simultaneous multi-channel beamforming is achieved through optical power splitting of optical signals to create multiple exact replicas of the signals that are then processed independently.
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公开(公告)号：US20180032717A1
公开(公告)日：2018-02-01
申请号：US15552295
申请日：2016-02-24
发明人： Shaun Cronin
CPC分类号： G06F21/44 , G06F21/88 , G06Q20/425 , G07D11/28 , G07F19/203 , G07F19/211 , H04Q5/00
摘要： The invention provides a security system for preventing unauthorised dispensing of cash from a cash dispenser (5), the cash dispenser (5) being located inside a physically protected area (10) of a cash handling machine (1), the cash handling machine having a host controller (2) outside the physically protected area (10) configured to issue dispensing instructions to the cash dispenser (5) over a dispensing instruction data link (3), the security system comprising: an access permission device (11) located inside the physically protected area (10) configured and connected to receive verification signals over a verification data link (2, 3, 22) and to block transmission of dispensing instructions over the dispensing instruction data link (3) to the cash dispenser if the verification signals are not received or are received but are incorrect; and access permission software operatively associated with the host controller (2) configured to send the verification signals to the access permission device (11).
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公开(公告)号：US09806909B2
公开(公告)日：2017-10-31
申请号：US15220152
申请日：2016-07-26
发明人： Yan Wang , Xiaoling Yang , Huixiao Ma
CPC分类号： H04L12/6418 , H04B10/27 , H04Q5/00 , H04Q9/00 , H04Q11/00
摘要： The present invention discloses a data switching apparatus and system, where the data switching apparatus includes: an optical-to-electrical conversion unit, an identification unit, an electrical switching unit, an electrical-to-optical conversion unit, an optical switching control unit, and an optical switching unit. The optical-to-electrical conversion unit is configured to perform optical-to-electrical conversion on a first optical data packet and an optical label, where the optical label carries switching information of a second optical data packet, and the first optical data packet and the second optical data packet are respectively to-be-switched data packets that need to use electrical packet switching and optical packet switching. The identification unit is configured to identify whether an electrical signal output by the optical-to-electrical conversion unit is from the optical label or the first optical data packet.
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4.发明申请公开(公告)号：US20170063429A1
公开(公告)日：2017-03-02
申请号：US14836770
申请日：2015-08-26
申请人： VIAVI SOLUTIONS INC.
发明人： Robert J. FLASK
CPC分类号： H04B3/46 , G01R31/11 , H04Q5/00 , H04Q2213/1301 , H04Q2213/13012 , H04Q2213/1316
摘要： A test instrument can be coupled to a test point and measure signals in the network. The test instrument may determine whether the test instrument is connected to a cable of the network and provide notification if the test instrument is not connected to a cable. The test instrument may also detect when it is connected to a customer premises that has been previously been tested through reflected signal signatures.
摘要翻译： 测试仪器可以耦合到测试点并测量网络中的信号。 测试仪器可以确定测试仪器是否连接到网络的电缆，并且如果测试仪器未连接到电缆，则提供通知。 测试仪器还可以检测何时连接到先前已经通过反射信号签名测试的客户驻地。
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公开(公告)号：US20170006154A1
公开(公告)日：2017-01-05
申请号：US15199487
申请日：2016-06-30
CPC分类号： H04M3/34 , H04B3/32 , H04Q5/00 , H04Q2201/14
摘要： Methods, systems, and devices are described for wired communication. A first distribution point uses sets of modems to communicate with a second distribution point over a crosstalk link to exchange information and coordinate the use of multiple sets of frequency bands. In some cases, the first distribution point may share a cable binder with the second distribution point and detect crosstalk on the subscriber lines in the cable binder. Based at least in part on the crosstalk detected by the first distribution point, the first and second distribution points may communicate over a crosstalk link between sets of lines in the binder. The distribution points may use one or more sets of predefined tones within the multiple sets of frequency bands to exchange messages, where the messages may include synchronization information, operating parameters, or control and data information.
摘要翻译： 描述了有线通信的方法，系统和设备。 第一分发点使用一组调制解调器通过串扰链路与第二分发点通信以交换信息并协调使用多组频带。 在一些情况下，第一分配点可以与第二分配点共享电缆扎带，并检测电缆扎带中用户线上的串扰。 至少部分地基于由第一分发点检测到的串扰，第一和第二分发点可以通过绑定器中的线组之间的串扰链路进行通信。 分发点可以使用多组频带内的一组或多组预定义音调来交换消息，其中消息可以包括同步信息，操作参数或控制和数据信息。
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公开(公告)号：US4998273A
公开(公告)日：1991-03-05
申请号：US369945
申请日：1989-06-22
申请人： Robert H. Nichols
发明人： Robert H. Nichols
CPC分类号： H04M11/00 , H04M1/82 , H04M19/04 , H04M9/02 , H04M3/02 , H04Q5/00 , Y10S379/902 , Y10S379/911
摘要： A party-like telephone line with plural numbers having distinguishable ringing signals on a single line is automatically connected to a facsimile or other telephone connected device for receiving incoming messages upon sensing a predetermined ring sequence with an interface, counter, timers, and comparator.
摘要翻译： 在单线上具有可区分的振铃信号的具有多个号码的派对式电话线路自动连接到传真机或其他电话连接设备，用于在用接口，计数器，定时器和比较器感测到预定的振铃序列时接收进入的消息。
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公开(公告)号：US4169217A
公开(公告)日：1979-09-25
申请号：US881712
申请日：1978-02-27
摘要： In a telephone installation in which more than one telephone terminal is connected to one pair of conductors--Tip and Ring--a line status apparatus is provided for each telephone terminal, the apparatus sensing a change in line characteristics resulting from an "off-hook" condition at any telephone and producing an output which is used to provide an indication. Little or no current is drawn from the telephone lines. Typical examples are sensing variations in AC characteristics, as resulting from voice transmission, ringing tones and the like; sensing DC variations, such as voltage drop when a telephone is "off-hook". Indication is generally visual.
摘要翻译： 在其中多于一个电话终端连接到一对导体的电话设备中 - 为每个电话终端提供了尖端和环形线路状态设备，该设备检测由“摘机”引起的线路特性的变化， 条件在任何电话和产生用于提供指示的输出。 电话线很少或没有电流。 典型的示例是由语音传输，铃声等引起的AC特性的感测变化; 感测DC变化，例如电话“摘机”时的电压降。 指示一般是视觉的。
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公开(公告)号：US4127824A
公开(公告)日：1978-11-28
申请号：US784211
申请日：1977-04-04
CPC分类号： H03H19/002 , H03H19/004 , H04B1/06 , H04Q5/00
摘要： A sampling filter-detector receives input signals of different frequencies and provides an output, or detect signal, only when the input frequency has a predetermined value essentially equal to the drive frequency of the sampling circuit. The input signal is coupled through a series of solid state switches, or multipliers, to storage, or sampling, capacitors, the average voltages of which are coupled through voltage peak and valley followers to a comparator which supplies an output or detect signal only when the difference between the positive and negative voltage inputs to the comparator is greater than a certain value. This occurs when the input frequency is within the detector bandwidth. A threshold voltage of a desired value may be placed in the circuit coupling the peak follower and the positive input of the comparator. The solid state switches are turned on and off by pulses from digital logic means such that the switches are on 120.degree. apart in time for the drive frequency which is equal to the frequency to be detected by the filter detector. The response to the third harmonic of the input signal fundamental is eliminated as are multiples of the third harmonic.
摘要翻译： 只有当输入频率具有基本上等于采样电路的驱动频率的预定值时，采样滤波器检测器接收不同频率的输入信号并提供输出或检测信号。 输入信号通过一系列固态开关或乘法器耦合到存储或采样电容器，其平均电压通过电压峰值和谷值跟随器耦合到比较器，该比较器仅在输出或检测信号时提供输出或检测信号 比较器的正电压和负电压输入之间的差异大于一定值。 当输入频率在检测器带宽内时，会发生这种情况。 可以将耦合峰值跟随器和比较器的正输入端的电路放置所需值的阈值电压。 固态开关由来自数字逻辑装置的脉冲导通和关断，使得开关在等于由滤波器检测器检测的频率的驱动频率上在时间上为120度。 对输入信号基波的三次谐波的响应被消除，如三次谐波的倍数。
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公开(公告)号：US3588824A
公开(公告)日：1971-06-28
申请号：US3588824D
申请日：1969-09-04
申请人： GEN SIGNAL CORP
发明人： BARKER WILLIAM M
CPC分类号： H04Q5/00
摘要： A COMMUNICATION LINE CIRCUIT CONNECTS A CONTROL OFFICE STATION WITH A PLURALITY OF SUCCESSIVE REMOTELY SPACED FIELD STATIONS. AN AUXILIARY LINE CIRCUIT EXTENDS FROM THE CONTROL OFFICE TO THE MOST REMOTE FIELD STATION. THE COMMUNICATION LINE CIRCUIT IS NORMALLY ENERGIZED, AND A LINE DETECTOR RELAY AT EACH STATION SENSES SUCH ENERGIZATION. IN CASE OF LINE CIRCUIT FAILURE, THE DROPPING AWAY OF THE DETECTOR RELAYS AT VARIOUS STATIONS ACTIVATES SECTIONALIZING MEANS AND INDICATORS AT THE CONTROL OFFICE MANIFEST THE GENERAL AREA OF THE FAILURE. CONTROLS FOR DESECTIONALIZATION CAN BE TRANSMITTED FROM THE CONTROL OFFICE TO THE SEVERAL FIELD STATIONS TO PUT THE LINE CIRCUIT BACK TOGETHER STATION-BY-STATION AS DESIRED TO COMMUNICATE WITH FIELD STATIONS AHEAD OF THE FAILURE DIRECTLY FROM THE CONTROL OFFICE OVER THE COMMUNICATION LINE CIRCUIT AND TO COMMUNICATE WITH FIELD STATIONS BEYOND THE FAILURE THROUGH THE SECTION OF THE COMMUNICATION LINE CIRCUIT BEYOND THE FAILURE AND OVER THE AUXILIARY LINE CIRCUIT TO THE CONTROL OFFICE.
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