公开(公告)号：US06892068B2

公开(公告)日：2005-05-10

申请号：US09918709

申请日：2001-08-01

Applicant: Peter D. Karabinis ,  Rajendra Singh ,  George Ronald Olexa ,  Bahman Badipour

Inventor： Peter D. Karabinis ,  Rajendra Singh ,  George Ronald Olexa ,  Bahman Badipour

IPC: H04B7/185 ,  H04B7/204 ,  H04W16/14 ,  H04Q7/20

CPC classification number: H04W16/14 ,  H04B7/18539 ,  H04B7/18563 ,  H04B7/2041

Abstract: A system and method of operation for efficiently reusing and/or sharing at least a portion of the frequency spectrum between a first satellite spot beam and a second satellite spot beam, and/or an underlay terrestrial network associated with a second satellite spot beam. The spectrum is efficiently reused and/or shared between respective spot beams and/or associated underlay terrestrial systems in a manner minimizes interference between the respective satellite and terrestrial systems.

公开(公告)号：US06684057B2

公开(公告)日：2004-01-27

申请号：US10074097

申请日：2002-02-12

Applicant: Peter D. Karabinis

Inventor： Peter D. Karabinis

IPC: H04Q720

CPC classification number: H04B7/216 ,  H04B7/18513 ,  H04B7/1853 ,  H04B7/18563 ,  H04W16/14 ,  H04W52/367

Abstract: A satellite radiotelephone frequency can be reused terrestrially by an ancillary terrestrial network even within the same satellite cell, using interference cancellation techniques. Moreover, the ancillary terrestrial network can use a modified range of satellite band forward link frequencies for transmission, to reduce interference with out-of-band receivers. A modified range of satellite band forward link frequencies that is used by the ancillary terrestrial network can include only a subset of the standard satellite band forward link frequencies to provide a guard band, can include power levels that monotonically decrease as a function of increasing frequency and/or can include two or more contiguous slots per frame that are left unoccupied and/or are transmitted at reduced maximum power. Time division duplex operation of the ancillary terrestrial network may also be provided over at least a portion of satellite band return frequencies. Full or partial reverse mode operation of the ancillary terrestrial network also may be provided, where at least some of the forward link and return link frequencies are interchanged with the conventional satellite forward link and reverse link frequencies.

Abstract translation: 使用干扰消除技术，卫星无线电话频率可以由辅助地面网络在同一卫星小区内重新使用。 此外，辅助地面网络可以使用修改的卫星频带前向链路频率范围进行传输，以减少对带外接收机的干扰。 由辅助地面网络使用的卫星频带前向链路频率的修改范围可以仅包括标准卫星频带前向链路频率的子集以提供保护频带，可以包括作为增加频率的函数单调减小的功率电平， /或可以包括两个或更多个连续的插槽，每个帧不被占用和/或以最小功率传输。 也可以在卫星频带返回频率的至少一部分上提供辅助地面网络的时分双工操作。 还可以提供辅助地面网络的全部或部分反向模式操作，其中至少一些前向链路和返回链路频率与传统的卫星前向链路和反向链路频率互换。

公开(公告)号：US6081709A

公开(公告)日：2000-06-27

申请号：US920492

申请日：1997-08-29

Applicant: Peter D. Karabinis

Inventor： Peter D. Karabinis

IPC: H04B7/185 ,  H04Q7/20

CPC classification number: H04B7/18532

Abstract: Direct, single hop narrow band TDMA radiotelephone communications among mobile satellite radiotelephones is provided via a satellite, while also providing reception of wide band TDMA radiotelephone communications from other telephone systems and/or among the satellite radiotelephones via a gateway and satellite, by providing TDMA bandwidth conversion in the mobile radiotelephones themselves. By relieving the satellite of the need to perform TDMA bandwidth conversion, the size, weight and/or power consumption of the satellite may be reduced.

Abstract translation: 通过卫星提供移动卫星无线电话机之间的直接单跳窄带TDMA无线电话通信，同时还经由网关和卫星通过网关和卫星提供从其他电话系统和/或卫星无线电话机之间的宽带TDMA无线电话通信的接收，通过提供TDMA带宽 移动无线电话本身的转换。 通过减轻卫星需要执行TDMA带宽转换，卫星的尺寸，重量和/或功率消耗可能会降低。

公开(公告)号：US4635276A

公开(公告)日：1987-01-06

申请号：US758697

申请日：1985-07-25

Applicant: Peter D. Karabinis

Inventor： Peter D. Karabinis

IPC: H03H15/00 ,  H03H17/00 ,  H03H21/00 ,  H04B3/06 ,  H04B7/00 ,  H04B7/005 ,  H04L7/00 ,  H04L25/03 ,  H04B3/04

CPC classification number: H04B7/002 ,  H04L25/03038 ,  H04L7/0083

Abstract: Equalizers, which provide distortion compensation for a modulated carrier signal having a time-varying signal envelope, are adjusted at selected times in response to the signal envelope and the data signals regenerated therefrom. Each selected time corresponds to a time when the signal envelope has a preselected value. Advantageously, the disclosed equalizer adjustment is unaffected by loss of receiver synchronization to the modulated carrier signal and is applicable to a variety of communications systems and modulation formats.

Abstract translation: 对于具有时变信号包络的调制载波信号提供失真补偿的均衡器响应于信号包络和从其再生的数据信号在选定的时间被调整。 每个选定的时间对应于信号包络具有预选值的时间。 有利地，所公开的均衡器调整不受到与调制载波信号的接收机同步丢失的影响，并且可应用于各种通信系统和调制格式。

公开(公告)号：US4564952A

公开(公告)日：1986-01-14

申请号：US559473

申请日：1983-12-08

Applicant: Peter D. Karabinis ,  Thomas L. Osborne

Inventor： Peter D. Karabinis ,  Thomas L. Osborne

IPC: H04B3/06 ,  H04L25/03 ,  H04L27/01 ,  H04B3/04 ,  H04B1/10

CPC classification number: H04L27/01

Abstract: Compensation for arbitrary combinations of linear and nonlinear distortion is provided by altering a received symbol value by a preselected amount. This amount is based on an estimate of the sequence of transmitted symbol values represented by the received symbol value at a sampling time and a number of received symbol values at other sampling times. The altered symbol value is then compared with the closest one of the possible transmitted symbol values to determine the difference, if any, therebetween. The closest one of the possible transmitted symbol values is then outputted if the difference meets a prescribed criterion. If not, the received symbol value is altered by a different amount in response to another estimate until the recited difference meets the prescribed criterion. In the disclosed embodiments, the foregoing technique is incorporated in a memory-based canceler or transversal filter.

Abstract translation: 线性和非线性失真的任意组合的补偿是通过将接收到的符号值改变为预选量来提供的。 该量基于在采样时间由接收到的符号值表示的发送符号值的序列的估计和在其它采样时间的接收符号值的数量。 然后将改变后的符号值与可能发送的符号值中最接近的符号值进行比较，以确定它们之间的差异（如果有的话）。 如果差异符合规定的标准，则输出最接近的一个可能发送的符号值。 如果不是，则响应于另一个估计，接收的符号值被改变不同的量，直到所述的差异符合规定的标准。 在所公开的实施例中，前述技术被并入基于存储器的消除器或横向滤波器中。

公开(公告)号：US4481645A

公开(公告)日：1984-11-06

申请号：US454266

申请日：1982-12-29

Applicant: Peter D. Karabinis

Inventor： Peter D. Karabinis

IPC: H04B3/06 ,  H04B7/005 ,  H04L27/38 ,  H04B15/00

CPC classification number: H04B7/005

Abstract: The linear distortion canceller circuit (104, 104-1) obliterates the linear component of any amplitude and/or group delay distortion in a double-sideband, amplitude modulated carrier signal. Pursuant to the present invention, the carrier signal is split into first and second signals. The first signal is multiplied by a mixing signal at twice the carrier signal frequency and the mixed first signal is then added with the second signal. The disclosed apparatus and method can be used in a communications system utilizing QAM modulation.

Abstract translation: 线性失真消除电路（104,104-1）在双边带调幅载波信号中消除任何幅度和/或群延迟失真的线性分量。 根据本发明，载波信号被分成第一和第二信号。 将第一信号乘以两倍于载波信号频率的混合信号，然后将混合的第一信号与第二信号相加。 所公开的装置和方法可以用于利用QAM调制的通信系统中。

公开(公告)号：US4415872A

公开(公告)日：1983-11-15

申请号：US293463

申请日：1981-08-17

Applicant: Peter D. Karabinis

Inventor： Peter D. Karabinis

IPC: H03H7/01 ,  H03H21/00 ,  H04B3/04 ,  H04B3/14 ,  H04B7/005 ,  H03H7/03

CPC classification number: H04B3/145 ,  H04B7/005

Abstract: The dispersive effects of frequency selective fading in a digital, FM, or AM radio system are reduced by means of an adaptive equalizer (11) comprising a cascade of feed-forward stages (1,2, . . . N), each of which includes: a first parallel wavepath (1-1, 1-2, . . . 1-N) including a first adjustable attenuator (20-1, 20-2, . . . 20-N); a second parallel wavepath (2-1, 2-2, . . . 2-N) including a second adjustable attenuator (21-1, 21-2, . . . 21-N) and delay means (22-1, 22-2, . . . 22-N); and means (23-1, 23-2, . . . 23-N) for combining the signals in said wavepaths and for coupling said combined signal to the next stage. By a suitable selection of parameters, according to two unique relationships, a transfer function can be realized which can compensate for amplitude and delay distortions caused by minimum and nonminimum phase fades.

Abstract translation: 数字，FM或AM无线电系统中的频率选择性衰落的色散效应通过包括级联的前馈级（1,2 ...，N）的自适应均衡器（11）来减少， 包括：包括第一可调衰减器（20-1,20-2，...，20-N）的第一并行波路径（1-1,1-2，...，1-N）; 包括第二可调衰减器（21-1,21-2 ... 21-N）和延迟装置（22-1,22）的第二并行波路径（2-1,2-2，...，2-N） -2，... 22-N）; 以及用于组合所述波形路径中的信号并将所述组合信号耦合到下一级的装置（23-1,23-2，...，23-N）。 通过合适的参数选择，根据两个独特的关系，可以实现可以补偿由最小和非最小相位衰落引起的幅度和延迟失真的传递函数。

公开(公告)号：US4373210A

公开(公告)日：1983-02-08

申请号：US248356

申请日：1981-03-27

Applicant: Peter D. Karabinis ,  Hotze Miedema

Inventor： Peter D. Karabinis ,  Hotze Miedema

IPC: H04B7/08 ,  H04B1/06

CPC classification number: H04B7/0857

Abstract: The benefits of space diversity combining in the presence of interference has been found to depend upon the signal-to-interference ratios at the two antennas. For optimum results, the signal-to-interference ratios should not differ by more than .+-.3 dB. If they do, an attenuator (12) is included in the antenna circuit (10) having the poorer signal-to-interference ratio so as to reduce the signal contribution from that antenna. Optimum signal conditions are disclosed.

Abstract translation: 已经发现在存在干扰的情况下组合的空间分集的优点取决于两个天线处的信号与干扰比。 为获得最佳结果，信号与干扰之比不应大于+/- 3 dB。 如果它们这样做，则具有较差信号干扰比的天线电路（10）中包括衰减器（12），以便减少来自该天线的信号贡献。 公开了最佳信号条件。

公开(公告)号：US4354276A

公开(公告)日：1982-10-12

申请号：US190353

申请日：1980-09-24

Applicant: Peter D. Karabinis

Inventor： Peter D. Karabinis

IPC: H04B7/08

CPC classification number: H04B7/0845

Abstract: In a space diversity receiver, the relative phase of the two received signals is varied in manner to minimize amplitude dispersion in the combined signal. A phase control signal is derived from the combined signal by phase modulating one of the received signals, and then detecting the fundamental amplitude component induced by said modulation within two selected portions of the combined signal spectrum. The fundamental component of the envelope modulation of the weaker of the two signal portions is used to control the relative phase of the two received signals so as to minimize the amplitude dispersion in the combined signal across the band. In the absence of inband phase dispersion needed in order for the compensating phase shift to effect the two signal portions differently, a relative delay is introduced in one of the two received signal paths.

Abstract translation: 在空间分集接收机中，两个接收信号的相对相位以使组合信号中的幅度分散最小化的方式变化。 通过对接收信号之一进行相位调制，从合成信号中导出相位控制信号，然后在合成信号频谱的两个选定部分内检测由所述调制引起的基波振幅分量。 使用两个信号部分较弱的包络调制的基本分量来控制两个接收信号的相对相位，以便最小化跨频带的组合信号中的振幅色散。 在不需要带内相位色散的情况下，为了补偿相移不同地影响两个信号部分，在两个接收信号路径之一中引入相对延迟。

公开(公告)号：US09462411B2

公开(公告)日：2016-10-04

申请号：US12264711

申请日：2008-11-04

Applicant: Peter D. Karabinis ,  Rajendra Singh

Inventor： Peter D. Karabinis ,  Rajendra Singh

IPC: H04W64/00 ,  H04W4/02 ,  G06Q30/06 ,  H04L29/08

CPC classification number: H04W48/04 ,  G06Q30/0601 ,  H04L67/18 ,  H04W4/02 ,  H04W4/023 ,  H04W4/80 ,  H04W76/10 ,  H04W88/06

Abstract: A system (10) and method (30) comprises a detector that is configured to enable a mode of a first device (14) and/or to enable a mode of a second device (15) responsive to a detection that a proximity criterion is satisfied between the first device and an entity (Entity 1) and responsive to at least one of a position, velocity and a Time-of-Day and where the second device is not the entity and is not associated with the entity, and where the entity is not involved in providing a communications service to the first and/or second device.

Abstract translation: 系统（10）和方法（30）包括检测器，其被配置为使能第一设备（14）的模式和/或使第二设备（15）的模式能够响应于接近标准是 在第一设备和实体（实体1）之间满足并响应于位置，速度和时间中的至少一个，并且其中第二设备不是实体并且不与实体相关联，并且其中 实体不涉及向第一和/或第二设备提供通信服务。