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1. 发明授权

US5610617A Directive beam selectivity for high speed wireless communication networks 失效
标题翻译：高速无线通信网络的指令光束选择性
公开(公告)号：US5610617A
公开(公告)日：1997-03-11
申请号：US503758
申请日：1995-07-18
申请人： Michael J. Gans , Yu S. Yeh
发明人： Michael J. Gans , Yu S. Yeh
IPC分类号： H01Q3/40 , H01P5/16 , H01Q3/24 , H01Q13/08 , H01Q21/06 , H01Q3/22
CPC分类号： H01Q21/065 , H01Q3/24 , Y02B60/50
摘要： The present invention provides a wireless communication system which employs Butler matrix combiners and circuit switching at transmitter and receiver antenna arrays to provide directive beamwidth capabilities. Such narrow beamwidths permit the communication system to determine and select the transmission path having an optimum signal quality. The antenna arrays are integrated in a multilayer construction which reduces power consumption, increases the coverage range, improves the efficiency of the antenna array, and which has lower fabrication costs.
摘要翻译：本发明提供了一种无线通信系统，其在发射机和接收机天线阵列处采用Butler矩阵组合器和电路交换以提供指向的波束宽度能力。这种窄波束宽度允许通信系统确定并选择具有最佳信号质量的传输路径。天线阵列集成在多层结构中，其降低功耗，增加覆盖范围，提高天线阵列的效率，并且具有较低的制造成本。

2. 发明授权

US5604462A Intermodulation distortion detection in a power shared amplifier network 失效
标题翻译：功率共享放大器网络中的互调失真检测
公开(公告)号：US5604462A
公开(公告)日：1997-02-18
申请号：US560450
申请日：1995-11-17
申请人： Michael J. Gans , Yu S. Yeh
发明人： Michael J. Gans , Yu S. Yeh
IPC分类号： H03F1/32 , H03F3/21 , H03F3/60 , H03F3/68 , H03F3/26
CPC分类号： H03F3/211 , H03F1/32 , H03F3/602 , H03F2200/294 , H03F2200/372
摘要： An intermodulation distortion (IMD) detection system improves IMD reduction capability of power shared linear amplifier networks. In one embodiment, first and second power sharing networks, preferably Butler Matrices, are provided with a plurality of linear amplifier circuits coupled therebetween. A plurality of input signals are applied to respective input ports of the first power sharing network, with a portion of each input signal amplified by each amplifier circuit and then recombined in the second power sharing network so that each amplified input signal appears at only one output port of the second power sharing network. An antenna coupled to each of these output ports then radiates the amplified signal energy associated with one of the input signals. A test signal, which may be a dual tone signal, is applied to another input port of the first power sharing network, where it is split and amplified by each amplifier circuit. Each amplifier circuit includes detection circuitry for detecting IMD energy of the test signal produced in the amplifier, which is also indicative of the IMD energy generated due to the amplification of the input signals. The amplified test signal is then recombined by the second power sharing network so that it appears only at one output port, where it is terminated.
摘要翻译：互调失真（IMD）检测系统改善了功率共享线性放大器网络的IMD降低能力。在一个实施例中，第一和第二功率共享网络（优选巴特勒矩阵）设置有耦合在其间的多个线性放大器电路。多个输入信号被施加到第一功率共享网络的相应输入端口，每个输入信号的一部分由每个放大器电路放大，然后在第二功率共享网络中重组，使得每个放大的输入信号仅出现在一个输出端端口的第二个功率共享网络。耦合到这些输出端口中的每一个的天线然后辐射与输入信号之一相关联的放大的信号能量。可以是双音信号的测试信号被施加到第一功率共享网络的另一个输入端口，在该输入端口被每个放大器电路分压和放大。每个放大器电路包括用于检测在放大器中产生的测试信号的IMD能量的检测电路，其也指示由于输入信号的放大而产生的IMD能量。然后，放大的测试信号由第二功率共享网络重新组合，使得其仅在一个输出端口处出现，在那里终止。

3. 再颁专利

USRE34811E Growable packet switch architecture 失效
标题翻译：可扩展分组交换架构
公开(公告)号：USRE34811E
公开(公告)日：1994-12-27
申请号：US940572
申请日：1992-09-04
申请人： Kai Y. Eng , Mark J. Karol , Yu S. Yeh
发明人： Kai Y. Eng , Mark J. Karol , Yu S. Yeh
IPC分类号： H04L12/56 , H04Q11/04
CPC分类号： H04L49/45 , H04L49/25 , H04L49/3018 , H04L49/3027 , H04L49/55
摘要： This invention is large N.times.N packet switch, formed using a plurality of smaller packet switches. The invention comprises an N input, L output interconnect fabric (L>N), and a plurality of J.times.K smaller packet switches (J>K). Each of the J inputs to each packet switch is connected to a separate one of the L outputs of the interconnect fabric, and each of the K outputs from each packet switch is connected to a destination equipment. In operation, packets are received at the N inputs to the interconnect fabric, and each packet is routed to one of the inputs of the packet switch associated with the destination user equipment for the packet. Simultaneous packets, up to J in number, are routed to separate inputs of a particular packet switch for distribution to their respective destinations, while all other simultaneous packets destined for user equipments associated with the same packet switch are lost, the probability of such a loss being acceptably small.
摘要翻译：本发明是使用多个较小分组交换机形成的大型N×N分组交换机。本发明包括N输入L输出互连结构（L> N）和多个JxK较小分组交换机（J> K）。每个分组交换机的每个J输入连接到互连结构的L个输出中的单独一个，并且每个分组交换机的每个K输出连接到目的地设备。在操作中，分组在N个输入处被接收到互连结构，并且每个分组被路由到与分组的目的地用户设备相关联的分组交换机的输入之一。同时数据包（最多J个）被路由到特定数据包交换机的分离输入，以分发到其各自的目的地，而所有其他同时发送到与相同数据包交换机相关联的用户设备的数据包丢失，这种损失的可能性可接受的小

4. 发明授权

US4754451A N-by-N "knockout" switch for a high-performance packet switching system with variable length packets 失效
标题翻译：用于具有可变长度分组的高性能分组交换系统的N-by N“敲除”开关
公开(公告)号：US4754451A
公开(公告)日：1988-06-28
申请号：US893610
申请日：1986-08-06
申请人： Kai Y. Eng , Michael G. Hluchyj , Yu S. Yeh
发明人： Kai Y. Eng , Michael G. Hluchyj , Yu S. Yeh
IPC分类号： H04L12/56 , H04Q11/04
CPC分类号： H04L49/25 , H04L49/10 , H04L49/103 , H04L49/201 , H04L49/254 , H04L49/30 , H04L49/3027
摘要： The present invention relates to an N-input, N-output "Knockout" packet switch (11) which uses decentralized control and distributed routing for routing high-speed, time-multiplexed, variable-length packets of information from the N inputs to the N outputs. More particularly, within the switch, the N input signals are separately synchronized such that the start of each arbitrarily arriving variable-length packet is synchronized to the start of a next mini time period of a sequence of mini time periods common to all inputs. The synchronized N input signals then propagate along separate broadcast buses (14) to each of N bus interface units (15) which include N packet filters (20), a concentrator (21) and a shared buffer (22) capable of processing variable-length packets. Each bus interface unit is associated with a separate one of the N outputs (12) of the switch, and the N packet filters therein are each associated with a separate one of the N broadcast buses for detecting if a packet on the associated bus is destined for the associated switch output. The concentrator is used to (a) reduce the number of separate buffers needed to receive packets which may arrive simultaneously and are destined for the associated output, and (b) only directs a maximum of L concurrently arriving packets to the shared buffer while discarding, or "knocking" out, the remainder. Contending packets at the output of the concentrator are stored in the shared buffer before placement on the output line on a first-in, first-out basis. The discarded packet rate of the "knockout" switch can be made as small as desired and latency of packets in the switch is the smallest achievable by any comparable switch.
摘要翻译：本发明涉及一种使用分散控制和分布式路由从N个输入到高速时间复用的可变长度信息分组的N输入，N输出“Knockout”分组交换机（11） N个输出。更具体地，在开关内，N个输入信号被单独地同步，使得每个任意到达的可变长度分组的开始被同步到所有输入共同的一小段时间段的下一小时间段的开始。同步的N个输入信号随后沿独立的广播总线（14）传播到N个总线接口单元（15）中的每一个，N总线接口单元（15）包括N个分组滤波器（20），集中器（21）和共享缓冲器（22）长度包。每个总线接口单元与交换机的N个输出（12）中的单独一个相关联，并且其中的N个分组滤波器各自与N个广播总线中的单独一个相关联，用于检测相关总线上的分组是否发往为关联的开关输出。集中器用于（a）减少接收可能同时到达并发往相关输出的分组所需的单独缓冲器的数量，以及（b）仅在丢弃时将最多同时到达的分组指向共享缓冲器，或“敲门”，余数。集中器输出端的数据包竞争存储在共享缓冲区中，先于先出先出，放在输出线路上。可以使“敲除”开关的丢弃的分组速率尽可能小，并且交换机中的分组的等待时间是通过任何可比较的开关可实现的最小的。

5. 发明授权

US4425639A Satellite communications system with frequency channelized beams 失效
标题翻译：卫星通信系统具有频率通道化的波束
公开(公告)号：US4425639A
公开(公告)日：1984-01-10
申请号：US224006
申请日：1981-01-12
申请人： Anthony Acampora , Douglas O. Reudink , Yu S. Yeh
发明人： Anthony Acampora , Douglas O. Reudink , Yu S. Yeh
IPC分类号： H04J3/00 , H04B7/185 , H04B7/204 , H04B7/208 , H04J4/00
CPC分类号： H04B7/2045
摘要： A digital communications satellite (12,44) receives signals from a plurality of narrow input spot-beams (14) of an uplink. It regenerates, multiplexes and routes the signals for transmission in a plurality of narrow output spot-beams (42) of a downlink. The uplink beams (14) each include a plurality of frequency re-use channels (18), while the downlink beams (42) each have only a single wide-band channel. The satellite (12,44) may multiplex the signals either before or after routing them. The spot-beams (14,42) may be fixed or scanning.
摘要翻译：数字通信卫星（12,44）从上行链路的多个窄输入点波束（14）接收信号。它在下行链路的多个窄输出点波束（42）中再生，复用和路由信号以便传输。上行链路波束（14）各自包括多个频率重用信道（18），而下行链路波束（42）每个都仅具有单个宽带信道。卫星（12,44）可以在路由它们之前或之后复用信号。点光束（14,42）可以是固定的或扫描的。

6. 发明授权

US4188578A Satellite communication system which concurrently transmits a scanning spot beam and a plurality of fixed spot beams 失效
标题翻译：同时发送扫描点光束和多个固定光束的卫星通信系统
公开(公告)号：US4188578A
公开(公告)日：1980-02-12
申请号：US907796
申请日：1978-05-19
申请人： Douglas O. Reudink , Yu S. Yeh
发明人： Douglas O. Reudink , Yu S. Yeh
IPC分类号： H04B7/204 , H04B7/00
CPC分类号： H04B7/2046
摘要： The present invention relates to a satellite communication system which uses a separate up-link and down-link fixed spot beam for communication with each of a plurality of, for example, spaced-apart high traffic demand ground areas and an up-link and a down-link scanning spot beam for communication with a plurality of, for example, spaced-apart low traffic demand ground areas on a time division multiple access (TDMA) basis. More particularly, a satellite repeater is disclosed for accomplishing the switching of signals concurrently received via the up-link fixed and scanning spot beams to the appropriate down-link fixed and scanning spot beams. Additionally, a transmission and a switching format is disclosed for the efficient multiple access of the low traffic demand ground station areas while still providing minimal buffering demands for the high traffic demand ground station areas.
摘要翻译：卫星通信系统技术领域本发明涉及一种卫星通信系统，其使用单独的上行链路和下行链路固定点波束来与多个例如间隔开的高交通需求地面区域中的每一个进行通信，以及上行链路和下行链路扫描点波束，用于在时分多址（TDMA）的基础上与多个例如间隔开的低业务量的地面区域进行通信。更具体地，公开了一种卫星转发器，用于完成通过上行链路固定和扫描光束同时接收的信号到适当的下行链路固定和扫描光束的切换。此外，公开了一种传输和切换格式，用于低流量需求地面站区域的有效多址访问，同时仍然为高流量需求地面站区域提供最小的缓冲需求。

7. 发明授权

US4166274A Techniques for cophasing elements of a phased antenna array 失效
标题翻译：复制天线阵列元素的技术
公开(公告)号：US4166274A
公开(公告)日：1979-08-28
申请号：US911827
申请日：1978-06-02
申请人： Douglas O. Reudink , Yu S. Yeh
发明人： Douglas O. Reudink , Yu S. Yeh
IPC分类号： H01Q3/26
CPC分类号： H01Q3/2652
摘要： The present invention relates to a method of cophasing the feed elements of a transmitting or a receiving phased array antenna. To cophase a transmitting antenna, the method entails transmitting a lower sideband and an upper sideband signal from a first and a second one of the feed elements, respectively, while transmitting a carrier signal used to generate the sideband signals on all other feed elements of the array. At each receiver the reference phase angle between the received sideband signals is measured and stored. The above step is sequentially repeated for the first and a third, the first and a fourth, etc., one of the feed elements, and the phase angle measured, subtracted from the reference phase angle, and stored. With the above method, the phase angle between each feed element and the second one of the feed elements is determined and stored and subsequently transmitted back to the transmitter for use in transmitting signals to each receiver. To cophase a receiving antenna, a received signal is modulated at sequential pairs of the feed elements to produce the upper and lower side-band signals and enable the above cophasing sequence to be performed.

8. 再颁专利

USRE34755E Interconnect fabric providing connectivity between an input and arbitrary output(s) of a group of outlets 失效
标题翻译：互连结构提供一组插座的输入和任意输出之间的连接
公开(公告)号：USRE34755E
公开(公告)日：1994-10-11
申请号：US940425
申请日：1992-09-04
申请人： Kai Y. Eng , Mark J. Karol , Yu S. Yeh
发明人： Kai Y. Eng , Mark J. Karol , Yu S. Yeh
IPC分类号： H04L12/56 , H04Q11/04
CPC分类号： H04L49/101 , H04L49/106 , H04L49/253 , H04L49/1515 , H04L49/3018 , H04L49/3027 , H04L49/55
摘要： This invention is an inventive N input by L output interconnect fabric. In operation, packets comprising an information field and an address are received at the N inputs to the interconnect fabric, and the address in each packet is mapped to a group of outputs, rather than to any particular output. Each packet is then routed to any available one of the interconnect fabric outputs associated with the group to which the packet is mapped. If a number of packets destined for the same group simultaneously arrive at the interconnect fabric inputs and the group to which they are all destined does not comprise enough outputs to accept them, then all packets in excess of the number that the destined group can accept are simply discarded. The probability of lost .[.jackets.]. .Iadd.packets .Iaddend.due to such discarded packets is acceptably small. In one exemplary embodiment, the invention can be utilized to build arbitrarily large packet switches.
摘要翻译：本发明是L输出互连结构的创新的N输入。在操作中，包括信息字段和地址的分组在N个输入处被接收到互连结构，并且每个分组中的地址被映射到一组输出，而不是映射到任何特定的输出。然后将每个数据包路由到与数据包映射到的组相关联的任何可用的互连结构输出。如果发往同一组的多个分组同时到达互连结构输入，并且它们全部注入的组不包括足够的输出来接受它们，则超过目标组可以接受的数量的所有分组是简单地丢弃。由于这种丢弃的数据包而丢失[包夹]数据包的概率是可接受的小。在一个示例性实施例中，本发明可以用于构建任意大的分组交换机。

9. 发明授权

US4955017A Growable packet switch architecture 失效
标题翻译：可扩展分组交换架构
公开(公告)号：US4955017A
公开(公告)日：1990-09-04
申请号：US400183
申请日：1989-08-29
申请人： Kai Y. Eng , Mark J. Karol , Yu S. Yeh
发明人： Kai Y. Eng , Mark J. Karol , Yu S. Yeh
IPC分类号： H04L12/56
CPC分类号： H04L49/45 , H04L49/25 , H04L49/3018 , H04L49/3027 , H04L49/55
摘要： This invention is large N.times.N packet switch, formed using a plurality of smaller packet switches. The invention comprises an N input, L output interconnect fabric (L>N), and a plurality of J.times.K smaller packet switches (J>K). Each of the J inputs to each packet switch is connected to a separate one of the L outputs of the interconnect fabric, and each of the K outputs from each packet switch is connected to a destination equipment. In operation, packets are received at the N inputs to the interconnect fabric, and each packet is routed to one of the inputs of the packet switch associated with the destination user equipment for the packet. Simultaneous packets, up to J in number, are routed to separate inputs of a particular packet switch for distribution to their respective destinations, while all other simultaneous packets destined for user equipments associated with the same packet switch are lost, the probability of such a loss being acceptably small.

10. 发明授权

US4145658A Method and apparatus for cancelling interference between area coverage and spot coverage antenna beams 失效
标题翻译：用于消除区域覆盖和点覆盖天线波束之间的干扰的方法和装置
公开(公告)号：US4145658A
公开(公告)日：1979-03-20
申请号：US803151
申请日：1977-06-03
申请人： Anthony Acampora , Douglas O. J. Reudink , Yu S. Yeh
发明人： Anthony Acampora , Douglas O. J. Reudink , Yu S. Yeh
IPC分类号： H04B7/15 , H04B7/204 , H04B7/04
CPC分类号： H04B7/2041
摘要： The present invention relates to method and apparatus for substantially cancelling interference between signals using the same frequency spectrum which are received via overlapping area coverage and spot coverage antenna beams. At the transmitter where the overlapping area and spot coverage beams are concurrently transmitted, a predetermined portion of the area coverage signal is coupled into each of the spot beam signals which will be overlapped at the associated spot beam receiver area by the area coverage beam. The predetermined portion coupled into each spot beam signal will have a magnitude and phase to substantially cancel the area coverage signal at the associated spot beam receiver area.
摘要翻译： {PG，1]本发明涉及用于基本上消除使用相同频谱的信号之间的干扰的方法和装置，其经由重叠区域覆盖和点覆盖天线波束接收。在重叠区域和点覆盖波束被同时传输的发射机处，区域覆盖信号的预定部分被耦合到每个点波束信号中，该波束信号将通过区域覆盖波束在相关联的射束接收器区域处重叠。耦合到每个点波束信号中的预定部分将具有幅度和相位以基本上消除相关联的光点接收器区域处的区域覆盖信号。

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