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1. 发明授权

US5546422A Method of transmitting low-power frequency hopped spread spectrum data 失效
标题翻译：低功率跳频扩频数据传输方法
公开(公告)号：US5546422A
公开(公告)日：1996-08-13
申请号：US362114
申请日：1994-12-22
申请人： Hanoch Yokev , Haim Harel , Yehouda Meiman
发明人： Hanoch Yokev , Haim Harel , Yehouda Meiman
IPC分类号： G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S19/25 , G01S19/27 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W84/02 , H04W88/02
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0053 , H04W84/025 , H04L5/0007 , H04L5/0062 , H04L5/0091 , H04W88/022
摘要： An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.
摘要翻译：描述了一种确认寻呼系统，其适合于寻呼网络的现有基础设施，并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。多个寻呼机被分配给组，其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。寻呼机的分组使组之间的确认传输的冲突最小化，并且使得大量寻呼单元能够在单个地理区域内操作。寻呼机包括一个特殊的双回路PLL合成器，以产生精确的窄带频率，并以快速方式改变或跳频。基站接收单元采用特殊算法，通过使用数据冗余，数据交织，软解码和纠错码来消除双相调制的跳频扩频数字数据，在噪声环境中检索极低功率的确认寻呼消息从远程口袋传呼机传输。在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。针对每个跳频确定信噪比，并且在基于软解码过程的数据比特冗余中丢弃或最小化相对噪声的跳。

2. 发明授权

US08634723B2 Optical communications with polarization dependent loss compensation 有权
标题翻译：具有偏振相关损耗补偿的光通信
公开(公告)号：US08634723B2
公开(公告)日：2014-01-21
申请号：US12969045
申请日：2010-12-15
申请人： Yehouda Meiman , Raanan Ivry
发明人： Yehouda Meiman , Raanan Ivry
IPC分类号： H04B10/00
CPC分类号： H04B10/2572
摘要： The invention related to the system and method for optical communication using light of two polarization states. Polarization distortion loss (PDL) is compensated by implementation of polarization controllers at both the transmitter and receiver sides. The transmitter controller performs a mixing transformation of beam with two polarizations, while the receiver controller performs the same transformation in the opposite direction with exactly same sequence as in the transmitter part. A cross scrambling and a polarization rotation represented by matrix multiplication are examples of such mixing polarization transformations. The averaged PDL induced errors are corrected by the FEC code plus interleavers.
摘要翻译：本发明涉及使用两种偏振状态的光的光通信系统和方法。通过在发射机和接收机两侧实现偏振控制器来补偿偏振失真损耗（PDL）。发射机控制器执行具有两个极化的波束的混合变换，而接收机控制器以与发射机部分完全相同的序列在相反方向上执行相同的变换。由矩阵乘法表示的交叉加扰和极化旋转是这种混合极化转换的示例。平均的PDL诱导误差由FEC码加交织器校正。

3. 发明授权

US5596330A Differential ranging for a frequency-hopped remote position determination system 失效
标题翻译：用于跳频远程位置确定系统的差分测距
公开(公告)号：US5596330A
公开(公告)日：1997-01-21
申请号：US389263
申请日：1995-02-16
申请人： Hanoch Yokev , Shimon Peleg , Yehouda Meiman , Boaz Porat
发明人： Hanoch Yokev , Shimon Peleg , Yehouda Meiman , Boaz Porat
IPC分类号： G01S1/00 , G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S5/14 , G01S11/02 , G01S19/03 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W88/02 , G01S1/24
CPC分类号： G01S3/023 , G01S1/026 , G01S11/02 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/02 , G01S5/021 , G01S5/04 , G01S5/14 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04W64/00 , H04W88/022
摘要： A differential ranging location system is described which uses a modified time-of-arrival technique to determine the location of a frequency hopped spread spectrum radio signal. The transmitter simultaneously transmits two radio frequency carriers having different frequencies such that a phase difference is observed between the two carriers at a distance from the transmitter. The phase difference is proportional to the range from the transmitter that the carrier signals are observed. The two carrier signals from the single transmitter are received by at least three and in special cases four base stations which calculate the differential time of arrival based on the phase differences of the received carriers. The calculated phase differences are then sent to a central location which locates the position of the transmitter based upon a planer hyperbolic location algorithm. Since a large number of narrow band frequencies across a wide spectrum are used in a frequency hopping transmission protocol, the accuracy in determining the phase differences between the two carriers is increased and the immunity to interference is also increased.
摘要翻译：描述了差分测距定位系统，其使用修改的到达时间技术来确定跳频扩频无线电信号的位置。发射机同时发射具有不同频率的两个射频载波，使得在距离发射机一定距离的两个载波之间观察到相位差。相位差与发射机的载波信号的观测范围成比例。来自单个发射机的两个载波信号由至少三个并且在特殊情况下被接收四个基站，其基于所接收的载波的相位差来计算差分到达时间。然后将计算的相位差发送到基于平面双曲线位置算法定位发射机的位置的中心位置。由于在跳频传输协议中使用了广泛频谱上的大量窄带频率，所以确定两个载波之间的相位差的精度增加，并且对干扰的抗扰度也增加。

4. 发明授权

US5519718A Remote unit for use with remote pager 失效
标题翻译：遥控单元，用于远程寻呼机
公开(公告)号：US5519718A
公开(公告)日：1996-05-21
申请号：US363288
申请日：1994-12-22
申请人： Hanoch Yokev , Haim Harel , Yehouda Meiman
发明人： Hanoch Yokev , Haim Harel , Yehouda Meiman
IPC分类号： G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S19/25 , G01S19/27 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W84/02 , H04W88/02
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0053 , H04W84/025 , H04L5/0007 , H04L5/0062 , H04L5/0091 , H04W88/022
摘要： An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.
摘要翻译：描述了一种确认寻呼系统，其适合于寻呼网络的现有基础设施，并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。多个寻呼机被分配给组，其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。寻呼机的分组使组之间的确认传输的冲突最小化，并且使得大量寻呼单元能够在单个地理区域内操作。寻呼机包括一个特殊的双回路PLL合成器，以产生精确的窄带频率，并以快速方式改变或跳频。基站接收单元采用特殊算法，通过使用数据冗余，数据交织，软解码和纠错码来消除双相调制的跳频扩频数字数据，从而在嘈杂的环境中检索极低功率的确认寻呼消息从远程口袋传呼机传输。在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。针对每个跳频确定信噪比，并且在基于软解码处理的数据比特冗余中丢弃或最小化相对噪声的跳。

5. 发明申请

US20080159758A1 OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS WITH COHERENT DETECTION 有权
标题翻译：具有相干检测的光学正交频分多址通信
公开(公告)号：US20080159758A1
公开(公告)日：2008-07-03
申请号：US12045765
申请日：2008-03-11
申请人： Isaac Shpantzer , Alexander Genusov , Yehouda Meiman , Jacob Khurgin
发明人： Isaac Shpantzer , Alexander Genusov , Yehouda Meiman , Jacob Khurgin
IPC分类号： H04B10/06 , H04B10/00
CPC分类号： H04B10/61 , G02B6/126 , G02B2006/12147 , H04B10/2575 , H04B10/611 , H04B10/614 , H04J14/06
摘要： The present invention provides a system and method of optical communications that utilize coherent detection technique and optical orthogonal frequency division multiplexing for phase encoded data transmission. In particular the invention addresses a device and method for digital polarization compensation of optical signals with up to 100 Gb/s transmission rate received via an optical link. The polarization compensation operates in two modes: acquisition mode and tracking mode. The polarization recovery is performed at the receiver side using the received digital signal conversion into frequency domain and separate reconstruction of the polarization state in each spectral component.
摘要翻译：本发明提供一种利用相干检测技术和光学正交频分复用进行相位编码数据传输的光通信系统和方法。特别地，本发明涉及用于经由光学链路接收的高达100Gb / s传输速率的光信号的数字偏振补偿的装置和方法。偏振补偿工作在两种模式：采集模式和跟踪模式。使用接收到的数字信号转换为频域并在每个频谱分量中分离重建偏振状态，在接收机侧执行偏振恢复。

6. 发明授权

US5870426A Grouping of spread spectrum acknowledgement pagers to minimize transmission collisions 失效
标题翻译：分组扩频确认寻呼机，以减少传输冲突
公开(公告)号：US5870426A
公开(公告)日：1999-02-09
申请号：US362246
申请日：1994-12-22
申请人： Hanoch Yokev , Haim Harel , Yehouda Meiman
发明人： Hanoch Yokev , Haim Harel , Yehouda Meiman
IPC分类号： G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S19/25 , G01S19/27 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W84/02 , H04W88/02 , H04B15/00 , H04K1/00 , H04L27/30
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0053 , H04W84/025 , H04L5/0007 , H04L5/0062 , H04L5/0091 , H04W88/022
摘要： An acknowledgment paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgment paging over long distances. The acknowledgment paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area.
摘要翻译：描述了一种确认寻呼系统，其适合于寻呼网络的现有基础设施，并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。多个寻呼机被分配给组，其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。寻呼机的分组使组之间的确认传输的冲突最小化，并且使得大量寻呼单元能够在单个地理区域内操作。

7. 发明授权

US5592180A Direction finding and mobile location system for trunked mobile radio systems 失效
标题翻译：定位移动无线电系统的方向发现和移动定位系统
公开(公告)号：US5592180A
公开(公告)日：1997-01-07
申请号：US329549
申请日：1994-10-26
申请人： Hanoch Yokev , Haim Harel , Yehouda Meiman , Shimon Peleg
发明人： Hanoch Yokev , Haim Harel , Yehouda Meiman , Shimon Peleg
IPC分类号： G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S19/25 , G01S19/27 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W84/02 , H04W88/02
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0053 , H04W84/025 , H04L5/0007 , H04L5/0062 , H04L5/0091 , H04W88/022
摘要： A special mobile radio mobile, vehicle or personal location system is described where the system operates to locate any one of a the transmitters in an SMR system. The present invention operates by identifying the received signals, removing the modulation information to reconstruct a demodulated carrier and analyzing the carrier signals for multipath distortion. The multipath disruptions are removed to calculate the true incident angle of the transmitted signal at a base station. A plurality of base stations are used to simultaneously calculate the incident angle of the transmitted SMR signal and a central location calculates the most probable location of the transmitter based upon triangulation. The incident angle of the transmitted SMR signal at each base station is performed by calculating the phase differences of the incoming voice signal with phase ambiguity minimized by using a plurality of dipole antennas spaced at an irregular distance to eliminate phase ambiguity error.
摘要翻译：描述了一种特殊的移动无线电移动，车辆或个人定位系统，其中系统操作以定位SMR系统中的发射机中的任何一个。本发明通过识别接收到的信号，去除调制信息来重构解调载波并分析载波信号进行多径失真来进行操作。去除多径中断以计算基站处的发射信号的真实入射角。多个基站被用于同时计算发射的SMR信号的入射角，并且中心位置基于三角测量来计算发射机的最可能的位置。通过使用以不规则距离间隔的多个偶极天线来计算相位模糊度最小化的输入语音信号的相位差来执行每个基站处发送的SMR信号的入射角，以消除相位模糊误差。

8. 发明授权

US5430759A Low-power frequency-hopped spread spectrum reverse paging system 失效
标题翻译：低功率跳频扩频反向寻呼系统
公开(公告)号：US5430759A
公开(公告)日：1995-07-04
申请号：US158441
申请日：1993-11-24
申请人： Hanoch Yokev , Haim Harel , Yehouda Meiman
发明人： Hanoch Yokev , Haim Harel , Yehouda Meiman
IPC分类号： G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S19/25 , G01S19/27 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W84/02 , H04W88/02 , H04L27/30
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0053 , H04W84/025 , H04L5/0007 , H04L5/0062 , H04L5/0091 , H04W88/022
摘要： An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.
摘要翻译：描述了一种确认寻呼系统，其适合于寻呼网络的现有基础设施，并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。多个寻呼机被分配给组，其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。寻呼机的分组使组之间的确认传输的冲突最小化，并且使得大量寻呼单元能够在单个地理区域内操作。寻呼机包括一个特殊的双回路PLL合成器，以产生精确的窄带频率，并以快速方式改变或跳频。基站接收单元采用特殊算法，通过使用数据冗余，数据交织，软解码和纠错码来消除双相调制的跳频扩频数字数据，在噪声环境中检索极低功率的确认寻呼消息从远程口袋传呼机传输。在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。针对每个跳频确定信噪比，并且在基于软解码过程的数据比特冗余中丢弃或最小化相对噪声的跳。

9. 发明授权

US08064767B2 Optical orthogonal frequency division multiplexed communications with coherent detection 有权
标题翻译：具有相干检测的光学正交频分复用通信
公开(公告)号：US08064767B2
公开(公告)日：2011-11-22
申请号：US12045765
申请日：2008-03-11
申请人： Isaac Shpantzer , Alexander Genusov , Yehouda Meiman , Jacob Khurgin
发明人： Isaac Shpantzer , Alexander Genusov , Yehouda Meiman , Jacob Khurgin
IPC分类号： H04J14/06
CPC分类号： H04B10/61 , G02B6/126 , G02B2006/12147 , H04B10/2575 , H04B10/611 , H04B10/614 , H04J14/06
摘要： The present invention provides a system and method of optical communications that utilize coherent detection technique and optical orthogonal frequency division multiplexing for phase encoded data transmission. In particular the invention addresses a device and method for digital polarization compensation of optical signals with up to 100 Gb/s transmission rate received via an optical link. The polarization compensation operates in two modes: acquisition mode and tracking mode. The polarization recovery is performed at the receiver side using the received digital signal conversion into frequency domain and separate reconstruction of the polarization state in each spectral component.
摘要翻译：本发明提供一种利用相干检测技术和光学正交频分复用进行相位编码数据传输的光通信系统和方法。特别地，本发明涉及用于经由光学链路接收的高达100Gb / s传输速率的光信号的数字偏振补偿的装置和方法。偏振补偿工作在两种模式：采集模式和跟踪模式。使用接收到的数字信号转换为频域并在每个频谱分量中分离重建偏振状态，在接收机侧执行偏振恢复。

10. 发明申请

US20110150498A1 OPTICAL COMMUNICATIONS WITH POLARIZATION DEPENDENT LOSS COMPENSATION 有权
标题翻译：光学通信与极化依赖性损失补偿
公开(公告)号：US20110150498A1
公开(公告)日：2011-06-23
申请号：US12969045
申请日：2010-12-15
申请人： Yehouda Meiman , Raanan Ivry
发明人： Yehouda Meiman , Raanan Ivry
IPC分类号： H04B10/02
CPC分类号： H04B10/2572
摘要： The invention related to the system and method for optical communication using light of two polarization states. Polarization distortion loss (PDL) is compensated by implementation of polarization controllers at both the transmitter and receiver sides. The transmitter controller performs a mixing transformation of beam with two polarizations, while the receiver controller performs the same transformation in the opposite direction with exactly same sequence as in the transmitter part. A cross scrambling and a polarization rotation represented by matrix multiplication are examples of such mixing polarization transformations. The averaged PDL induced errors are corrected by the FEC code plus interleavers.
摘要翻译：本发明涉及使用两种偏振状态的光的光通信系统和方法。通过在发射机和接收机两侧实现偏振控制器来补偿偏振失真损耗（PDL）。发射机控制器执行具有两个极化的波束的混合变换，而接收机控制器以与发射机部分完全相同的序列在相反方向上执行相同的变换。由矩阵乘法表示的交叉加扰和极化旋转是这种混合极化转换的示例。平均的PDL诱导误差由FEC码加交织器校正。

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