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1. 发明授权

US4525689A N.times.m stripline switch 失效
标题翻译： Nxm带状线开关
公开(公告)号：US4525689A
公开(公告)日：1985-06-25
申请号：US558215
申请日：1983-12-05
申请人： Gary L. Wagner , Michael J. Serrone
发明人： Gary L. Wagner , Michael J. Serrone
IPC分类号： H01P1/15 , H04Q3/52
CPC分类号： H01P1/15 , H04Q3/521
摘要： A dynamic electronic switch (10) having n inputs (2) and m outputs (4), where n and m are any positive integers. The electromagnetic signal on any given input (2) may be switched onto any number of outputs (4), but any given output (4) may have no more than one input signal switched thereonto at any given time. Switching nodes (8), comprising at least one switching diode (11, 13, 15) and a directional edge coupler (17) embedded between two parallel ground planes (9, 1) in a planar mother board (5), perform switching at each intersection of an input (2) and an output (4). Each output (4) is mounted on a planar dielectric summer board (6) positioned orthogonal to the mother board (5). The lengths of the extended transmission lines (76) associated with each output (4) are such that when an input signal is switched onto said output (4), the sum of the admittances of the n-1 unswitched extended transmission lines ( 76), measured between an associated summing junction (85) and ground, is substantially equal to zero.
摘要翻译：具有n个输入（2）和m个输出（4）的动态电子开关（10），其中n和m是任何正整数。任何给定输入（2）上的电磁信号可以被切换到任何数量的输出（4），但是任何给定的输出（4）可以在任何给定的时间内不多于一个输入信号被切换。包括至少一个开关二极管（11,13,15）和嵌入平面母板（5）中的两个平行接地平面（9,1）之间的方向边缘耦合器（17））的开关节点（8）执行切换输入（2）和输出（4）的每个交点。每个输出（4）安装在与母板（5）正交定位的平面介电加热板（6）上。与每个输出（4）相关联的扩展传输线（76）的长度使得当输入信号被切换到所述输出（4）上时，n-1个未切换的扩展传输线（76）的导纳总和在相关联的求和结（85）和地之间测量的，基本上等于零。

2. 发明授权

US4675558A Lock detector for bit synchronizer 失效
标题翻译：锁定检测器用于位同步器
公开(公告)号：US4675558A
公开(公告)日：1987-06-23
申请号：US789818
申请日：1985-10-21
申请人： Michael J. Serrone , Timothy P. Halloran , Gary L. Wagner
发明人： Michael J. Serrone , Timothy P. Halloran , Gary L. Wagner
IPC分类号： H03L7/095 , H04L7/033 , H03L7/06
CPC分类号： H04L7/033 , H03L7/095 , Y10S331/02
摘要： A lock detector (12) used in conjunction with a bit synchronizer (14) for determining when a random binary input signal (2) is in lock with a clock (7) generated by the bit synchronizer (14). A window comparator (3, 5; or 23, 25, 27) determines whether the amplitude of the input signal (2) is within or without an amplitude window, and generates a signal (33) as a result of said determination. This signal (33) is sampled at periodic sampling points (X, Y). The set of X sampling points and set of Y sampling points are interleaved and usually separated by half a bit period. The X samples and Y samples are averaged and compared. Means (19) are provided for declaring a lock condition when the X average exceeds the Y average by a preselected threshold (V.sub.REF), which occurs when the X points are positioned near mid-points of data bits (35) and the Y points are positioned near data transitions (39). The circuit (12) will not lock on false sidebands and can operate at very low signal-to-noise ratios.
摘要翻译：与位同步器（14）一起使用的锁定检测器（12），用于确定随机二进制输入信号（2）何时与位同步器（14）产生的时钟（7）锁定。窗口比较器（3,5;或23,25,27）确定输入信号（2）的振幅是否在幅度窗口内或者没有振幅窗口，并且作为所述确定的结果产生信号（33）。该信号（33）在周期性采样点（X，Y）被采样。 X采样点和Y采样点的集合被交织，并且通常被半位周期隔开。对X样品和Y样品进行平均和比较。提供装置（19），用于当X平均值超过Y平均值时，当X点位于数据位（35）的中点附近时发生的预选阈值（VREF），并且Y点是位于数据转换附近（39）。电路（12）不会锁定在伪边带上，并且可以在非常低的信噪比下工作。

3. 发明授权

US07271736B2 Emergency vehicle alert system 失效
标题翻译：紧急车辆报警系统
公开(公告)号：US07271736B2
公开(公告)日：2007-09-18
申请号：US10769268
申请日：2004-01-30
申请人： Michael Aaron Siegel , Robert Yarbrough , William G. Howell , Michael J. Serrone
发明人： Michael Aaron Siegel , Robert Yarbrough , William G. Howell , Michael J. Serrone
IPC分类号： G08G1/00
CPC分类号： G08G1/0965 , G08G1/087
摘要： An alert transceiver in commuter vehicles in a line-of-site warning area receive line of sight (LOS) alert signals from another vehicle, such as an emergency vehicle. Upon detecting the LOS alert signal, the alert transceiver can relay the alert signals to other alert transceivers in commuter vehicles within a warning zone that are outside of LOS zone, thereby creating mobile tracking network (MTN). The alert signals can include any relevant information, such as information regarding a hazard that includes the type of hazard (emergency vehicle, fire, ambulance, etc.), the time stamped location, direction of travel, speed and planned route for the emergency vehicle; and/or the coordinates of warning zone as determined by alert transceivers.
摘要翻译：在现场警报区域的通勤车辆中的警报收发器接收来自另一车辆（例如紧急车辆）的视线（LOS）警报信号。在检测到LOS警报信号后，警报收发器可将报警信号中继到位于LOS区外的警告区内的通勤车辆中的其他警报收发器，从而创建移动跟踪网络（MTN）。警报信号可以包括任何相关信息，例如关于危险类型的信息（应急车辆，火灾，救护车等），时间戳位置，行驶方向，速度和紧急车辆的计划路线 ; 和/或由警报收发器确定的警告区域的坐标。

4. 发明授权

US5272700A Spectrally efficient broadband transmission system 失效
标题翻译：光谱高效的宽带传输系统
公开(公告)号：US5272700A
公开(公告)日：1993-12-21
申请号：US778031
申请日：1991-10-17
申请人： David E. Hansen , Robert P. McNamara , James C. Long , Michael J. Serrone , Chinh Q. Phan , Long K. Tran
发明人： David E. Hansen , Robert P. McNamara , James C. Long , Michael J. Serrone , Chinh Q. Phan , Long K. Tran
IPC分类号： H04L29/10 , H04L12/28 , H04L12/413 , H04L27/00 , H04J3/02
CPC分类号： H04L27/00 , H04L12/2801 , H04L12/413
摘要： A baseband signal is spectrally efficiently transmitted on a broadband transmission medium by inserting gaps in packets of digital data transmitted in a modulated first radio frequency carrier. The transmitted packets of data are received by demodulating the modulated first radio frequency carrier, and the gap is monitored for the presence of digital data thus indicating a collision of simultaneously transmitted packets of digital data. A seed of arbitrary digital bits are used in scrambling each packet of digital data and is transmitted with the packet of data for use in descrambling the data. In retransmitting the packet of data the seed is included. The originally transmitting node receives the retransmitted packet and compares the retransmitted seed with the originally transmitted seed for detecting an error in retransmission.
摘要翻译：通过在调制的第一射频载波中发送的数字数据的分组中插入间隙，在宽带传输介质上频谱地高效率地发送基带信号。通过解调经调制的第一射频载波来接收所发送的数据分组，并监视间隙以存在数字数据，从而指示同时发送的数字数据分组的冲突。任意数字位的种子用于对数字数据的每个数据包进行加扰，并与用于解扰数据的数据分组一起发送。在重新发送数据包时，包含种子。原始发送节点接收重传的分组，并将重传的种子与原始发送的种子进行比较，以检测重传中的错误。

5. 发明授权

US5255267A Apparatus for combining broadband and baseband signal transmissions 失效
标题翻译：用于组合宽带和基带信号传输的装置
公开(公告)号：US5255267A
公开(公告)日：1993-10-19
申请号：US848570
申请日：1992-03-09
申请人： David E. Hansen , Robert P. McNamara , Chinh Q. Phan , Michael J. Serrone
发明人： David E. Hansen , Robert P. McNamara , Chinh Q. Phan , Michael J. Serrone
IPC分类号： H04B3/54 , H04L12/40 , H04L12/66 , H04J1/08 , H04J1/10
CPC分类号： H04L12/66 , Y10S370/908
摘要： Apparatus for combining broadband RF signals and baseband signals in a baseband distribution cable includes a bridge for coupling the distribution cable to an RF broadband trunk and to a baseband repeater. The trunk is connected through bidirectional amplifier, an impedance transformer, and a signal splitter for applying the amplified and impedance transformed broadband signal to a plurality of baseband segments. The RF signal from the splitter is passed through a 35 MHz high pass filter to the baseband segment. Baseband signals from a repeater are passed through a 25 MHz low pass filter to the baseband segment. The two filters prevent interference between the baseband and broadband signals. A tap in the distribution cable for accessing the broadband and baseband signals includes first and second low pass filters and a directional coupler serially connected between two cable terminals with a high pass filter connected in parallel with a first and second low pass filters whereby broadband signals can pass around the low pass filters. A third low pass filter connects an MAU port to the first and second low pass filters whereby baseband signals can be transmitted in either direction on the distribution cable without injecting noise in the broadband signal.

6. 发明授权

US4989220A Method and apparatus for demodulating a class of M-ary phase shift keyed (PSK) signals 失效
标题翻译：用于解调一类M相移键控（PSK）信号的方法和装置
公开(公告)号：US4989220A
公开(公告)日：1991-01-29
申请号：US317167
申请日：1989-02-28
申请人： Michael J. Serrone
发明人： Michael J. Serrone
IPC分类号： H04L27/233
CPC分类号： H04L27/2331
摘要： A method and an apparatus for demodulating M-ary PSK signals of the type wherein the modulation is limited to phase transitions between adjacent phase states. The method is operative in a demodulator which comprises a phase splitter dividing a source signal into two paths with a preselected phase relationship among phases, one of the phases being delayed by nominally one bit period, a mixer or multiplier receiving as one input a representation of the delayed-phase component and as a second input a representation of the other phase component. A signal is filtered by a lowpass filter and provided to at least one corresponding two-level comparator, each of which produces a digital output. Digital logic circuitry responds to the digital outputs of each of the comparators to map the digital outputs into a single digital bit stream of ones and zeros.
摘要翻译：一种用于解调类型的M-ary PSK信号的方法和装置，其中调制被限制在相邻相位状态之间的相变。该方法在解调器中操作，该解调器包括相位分离器，该相位分离器将源信号分为两个相位之间的预选相位关系的两个路径，一个相位通过名义上的一个位周期被延迟，混频器或乘法器接收作为一个输入的表示延迟相分量和作为第二输入的另一相分量的表示。信号被低通滤波器滤波并提供给至少一个对应的两电平比较器，每个比较器产生数字输出。数字逻辑电路响应每个比较器的数字输出以将数字输出映射成单个数字比特流的1和零。

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