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21. 发明授权

US06665308B1 Apparatus and method for equalization in distributed digital data transmission systems 有权
标题翻译：分布式数字数据传输系统中均衡的装置和方法
公开(公告)号：US06665308B1
公开(公告)日：2003-12-16
申请号：US09156560
申请日：1998-09-17
申请人： Selim Shlomo Rakib , Yehuda Azenkot
发明人： Selim Shlomo Rakib , Yehuda Azenkot
IPC分类号： H04B138
CPC分类号： H04W48/16 , H03M13/256 , H03M13/41 , H03M13/4169 , H03M13/6331 , H04B1/707 , H04B7/2668 , H04B2201/709709 , H04H20/78 , H04J3/0682 , H04J13/0074 , H04J14/007 , H04L1/006 , H04L1/16 , H04L5/023 , H04L5/026 , H04L5/06 , H04L7/04 , H04L7/041 , H04L12/2801 , H04L25/03343 , H04L27/362 , H04L2025/03414 , H04N7/10 , H04N7/17309 , H04W74/0866
摘要： A system for bidirectional communication of digital data between a central unit and a remote unit wherein the need for tracking loops in the central unit has been eliminated. The central unit transmitter generates a master carrier and a master clock signal which are used to transmit downstream data to the remote units. The remote units recover the master carrier and master clock and synchronize local oscillators in each remote unit to these master carrier and master clock signals to generate reference carrier and clock signals for use by the remote unit receiver. These reference carrier and clock signals are also used by the remote unit transmitters to transmit upstream data to the central unit. The central unit receiver detects the phase difference between the reference carrier and clock signals from the remote units periodically and adjusts the phase of the master carrier and master clock signals for use by the central unit receiver to receive the upstream data.
摘要翻译：已经消除了用于在中央单元和远程单元之间双向通信数字数据的系统，其中在中央单元中需要跟踪回路。中央单元发射机产生主载波和主时钟信号，用于将下行数据发送到远程单元。远程单元恢复主载波和主时钟，并将每个远程单元中的本地振荡器与这些主载波和主时钟信号同步，以生成参考载波和时钟信号供远程单元接收机使用。这些参考载波和时钟信号也被远程单元发射机用于将上行数据传输到中央单元。中央单元接收机周期性地检测来自远程单元的参考载波和时钟信号之间的相位差，并调整主载波和主时钟信号的相位，供中央单元接收机使用以接收上行数据。

22. 发明授权

US5793759A Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes 失效
标题翻译：使用正交循环码通过视频电缆进行数字数据传输的装置和方法
公开(公告)号：US5793759A
公开(公告)日：1998-08-11
申请号：US588650
申请日：1996-01-19
申请人： Selim Shlomo Rakib , Yehuda Azenkot
发明人： Selim Shlomo Rakib , Yehuda Azenkot
IPC分类号： H03M13/25 , H03M13/41 , H04B1/707 , H04B7/26 , H04H60/97 , H04J3/06 , H04J11/00 , H04J13/00 , H04J13/18 , H04J14/00 , H04L5/02 , H04L5/06 , H04L7/04 , H04L12/28 , H04L12/56 , H04L25/03 , H04L27/36 , H04N7/173 , H04B1/69 , H04B7/216
CPC分类号： H04W48/16 , H04B1/707 , H04J13/00 , H04J13/004 , H04J13/18 , H04J3/0608 , H04J3/0682 , H04L12/2801 , H04L25/03343 , H04L27/362 , H04L5/023 , H04L5/026 , H04L5/06 , H04N7/10 , H04N7/17309 , H04B2201/709709 , H04B7/2668 , H04H60/97 , H04J14/007 , H04L2025/03414 , H04L7/041 , H04W28/24 , H04W28/26 , H04W4/18 , H04W74/0866
摘要： A method and apparatus for carrying out synchronous co-division multiple access (SCDMA,) communication of multiple channels of digital data over a shared transmission media such as a cable television system coaxial cable, a fiber optic or copper conductor telephone link, terrestial microwave, satellite link, local or wide area network, wireless including cellur network or some combination of these media using suitable interface circuitry. The system includes modems at remote units and a central unit to receive time division multiplexed digital data arranged into timeslots or channels and uses orthogonal codes to encode each channel of multiple data and spread the energy of each channel data over a frame of data transmitted in the code domain. Spreading the data this way makes the system less susceptible to impulse noise. Frames are synchronized as between remote and central units using a ranging scheme which is also useful in any other system transmitting data by frames in a distributed system where synchronizing the frames as between all units regardless of differences in propagation delays is necessary. Each frame in the SCDMA modulation scheme includes a gap or guardband containing no other data. The ranging process involves training each remote unit to impose enough delay prior to re-transmission of a barker code received from the CU such that a barker code sent by the RU arrives at the CU during the gap. The process of setting the delay in each RU is a trial and error process, and each RU starts the ranging process asynchronously. Contention resolution protocols such that only one RU is aligning to the gap at any particular time are taught.
摘要翻译：一种用于在诸如有线电视系统同轴电缆，光纤或铜导体电话链路，陆地微波等共享传输介质上进行多信道数字数据的同步并行多址（SCDMA）通信的方法和装置，卫星链路，本地或广域网，包括蜂窝网络的无线网络或使用合适的接口电路的这些媒体的某些组合。该系统包括远程单元的调制解调器和中央单元，用于接收布置在时隙或信道中的时分复用数字数据，并使用正交码来对多个数据的每个信道进行编码，并将每个信道数据的能量扩展到代码域。以这种方式传播数据使得系统不易受到脉冲噪声的影响。帧在远程和中央单元之间使用测距方案同步，该测距方案对于在分布式系统中以帧的方式传输数据的任何其他系统也是有用的，其中在不考虑传播延迟之间的差异的情况下，在所有单元之间同步帧。 SCDMA调制方案中的每个帧包括不包含其他数据的间隙或保护带。测距过程涉及训练每个远程单元以在重新发送从CU接收到的巴克码之前施加足够的延迟，使得由RU发送的巴克码在间隙期间到达CU。在每个RU中设置延迟的过程是一个试错过程，每个RU异步启动测距过程。教导了在任何特定时间只有一个RU与间隙对齐的竞争解决协议。

23. 发明申请

US20110182583A1 DISTRIBUTED CABLE MODEM TERMINATION SYSTEM 有权
标题翻译：分布式电缆调制解调器终止系统
公开(公告)号：US20110182583A1
公开(公告)日：2011-07-28
申请号：US12692582
申请日：2010-01-22
申请人： Selim Shlomo Rakib
发明人： Selim Shlomo Rakib
IPC分类号： H04J14/00 , H04N7/173
CPC分类号： H04N21/615 , H04L12/2801 , H04L12/2874 , H04L12/2885 , H04N21/6118 , H04N21/6168
摘要： Distributed CMTS device for a HFC CATV network serving multiple neighborhoods by multiple individual cables, in which the QAM modulators that provide data for the individual cables are divided between QAM modulators located at the cable plant, and remote QAM modulators ideally located at the fiber nodes. A basic set of CATV QAM data waveforms may be transmitted to the nodes using a first fiber, and a second set of IP/on-demand data may be transmitted to the nodes using an alternate fiber or alternate fiber frequency, and optionally other protocols such as Ethernet protocols. The nodes will extract the data specific to each neighborhood and inject this data into unused QAM channels, thus achieving improved data transmission rates through finer granularity. A computerized “virtual shelf” control system for this system is also disclosed. The system has high backward compatibility, and can be configured to mimic a conventional cable plant CMTS.
摘要翻译：用于通过多个单独电缆为多个邻居服务的HFC CATV网络的分布式CMTS设备，其中为各个电缆提供数据的QAM调制器在位于电缆设备处的QAM调制器之间划分，并且理想地位于光纤节点处的远程QAM调制器。可以使用第一光纤将基本的一组CATV QAM数据波形发送到节点，并且可以使用替代光纤或替代光纤频率将第二组IP /点播数据发送到节点，并且可选地使用其他协议作为以太网协议。节点将提取特定于每个邻域的数据，并将该数据注入未使用的QAM信道，从而通过更细粒度实现改进的数据传输速率。还公开了一种用于该系统的计算机化的“虚拟架”控制系统。该系统具有较高的向后兼容性，可配置为模拟常规电缆厂CMTS。

24. 发明授权

US07590991B2 Method and apparatus for determining channel to which a TV or VCR is tuned 有权
标题翻译：用于确定TV或VCR调谐到的频道的方法和装置
公开(公告)号：US07590991B2
公开(公告)日：2009-09-15
申请号：US10684182
申请日：2003-10-09
申请人： Oren Arad , Selim Shlomo Rakib
发明人： Oren Arad , Selim Shlomo Rakib
IPC分类号： H04N7/16 , H04B1/26 , H04B17/00
CPC分类号： H04N21/436 , H04N21/4122 , H04N21/4135 , H04N21/4305 , H04N21/4383 , H04N21/44231
摘要： Method and apparatus to determine the channel to which a TV tuner is tuned from a return loss ratio measurement circuit in a set top decoder. The method comprises generating a plurality of probe signals having frequencies spread throughput the TV channel band, preferably using harmonics of a zero order hold D/A converter. The return loss ratio of the reflected probe signals is then determined and stored as a signature for the TV channel and the signatures can subsequently be used along with new return loss ratio measurements to determine the TV channel to which a TV or VCR tuner is tuned.
摘要翻译：用于从机顶解码器中的回波损耗比测量电路确定调谐TV调谐器的频道的方法和装置。该方法包括产生多个具有频率扩展吞吐量TV信道频带的探测信号，优选地使用零级保持D / A转换器的谐波。然后确定反射的探测信号的回波损耗比，并将其存储为TV信道的签名，随后可以利用新的返回损耗比测量来使用签名来确定TV或VCR调谐器被调谐到的TV频道。

25. 发明授权

US07089577B1 Process for supplying video-on-demand and other requested programs and services from a headend 有权
标题翻译：从头端提供视频点播和其他所需节目和服务的过程
公开(公告)号：US07089577B1
公开(公告)日：2006-08-08
申请号：US09602779
申请日：2000-06-23
申请人： Selim Shlomo Rakib , Fabrice Michel Raymond Quinard , Peter Albert Monta
发明人： Selim Shlomo Rakib , Fabrice Michel Raymond Quinard , Peter Albert Monta
IPC分类号： H04N7/173
CPC分类号： H04N7/17336 , H04N21/235 , H04N21/23614 , H04N21/435 , H04N21/472 , H04N21/4882 , H04N21/6125
摘要： A system for providing video-on-demand service, broadband internet access and other broadband services over T-carrier systems including a pull multiplexer cherrypicker at the head end is disclosed. The pull multiplexer receives upstream requests and cull out MPEG or other compressed video packets, IP packets and other data packet types to satisfy the requests or to send pushed programming downstream. The downstream can be DSL or HFC. Each customer has a cable modem, DSL modem or a gateway which interfaces multiple signal sources to a LAN to which settop decoders, digital phones, personal computers, digital FAX machines, video cameras, digital VCRs etc. can be attached. Each gateway can coupled the LAN to a DSL line or HFC through a cable modem or a satellite dish through a satellite transceiver. A PSTN and conventional TV antenna interface is also provided.
摘要翻译：公开了一种通过T载波系统提供视频点播服务，宽带互联网接入和其他宽带服务的系统，包括头端的拉多路复用器切换器。拉多路复用器接收上行请求并剔除MPEG或其他压缩视频数据包，IP数据包和其他数据包类型以满足请求或向下发送推送编程。下游可以是DSL或HFC。每个客户都有一个电缆调制解调器，DSL调制解调器或一个网关，它将多个信号源连接到可以安装机顶盒解码器，数字电话，个人电脑，数字传真机，摄像机，数字录像机等的LAN。每个网关可以通过卫星收发器通过电缆调制解调器或卫星天线将LAN耦合到DSL线路或HFC。还提供PSTN和常规电视天线接口。

26. 发明授权

US08547988B2 Communications method employing orthonormal time-frequency shifting and spectral shaping 有权
标题翻译：采用正交时频移频和频谱整形的通信方法
公开(公告)号：US08547988B2
公开(公告)日：2013-10-01
申请号：US13117124
申请日：2011-05-26
申请人： Ronny Hadani , Selim Shlomo Rakib
发明人： Ronny Hadani , Selim Shlomo Rakib
IPC分类号： H04J4/00
CPC分类号： H04J11/0063 , H04L5/0016 , H04L5/0044 , H04L23/02 , H04L25/03834 , H04L27/2634 , H04L27/265 , H04L27/2655 , H04L27/2697 , H04W28/065 , H04W72/00
摘要： A wireless combination time, frequency and spectral shaping communications method that transmits data in convolution unit matrices (data frames) of N×N (N2), where generally either all N2 data symbols or elements are received over N spreading time intervals (each composed of N time slices), or none are. To transmit, each data element is assigned a unique waveform which is derived from a basic waveform of duration N time slices over one spreading time interval, where each basic waveform has a data element specific combination of a time and frequency cyclic shift. At the receiver, the received signal is correlated with the set of all N2 waveforms previously assigned to each data element by a transmitter for that specific time spreading interval, producing a unique correlation score for each one of the N2 data elements. The scores are summed over each data element, and this summation reproduces the data frame.
摘要翻译：在N×N（N2）的卷积单位矩阵（数据帧）中传输数据的无线组合时间，频率和频谱整形通信方法，其中通常在N个扩展时间间隔（每个由 N个时间片），或没有。为了传输，每个数据元素被分配唯一的波形，该唯一波形是从一个扩展时间间隔的持续时间N个时间片的基本波形导出的，其中每个基本波形具有时间和频率循环移位的数据元素特定组合。在接收机处，接收到的信号与先前由发射机分配给每个数据元素的所有N2个波形的集合相关联，以产生用于该特定时间扩展间隔的每个N2数据元素的唯一相关得分。分数在每个数据元素上求和，该求和再现数据帧。

27. 发明申请

US20110292971A1 COMMUNICATIONS METHOD EMPLOYING ORTHONORMAL TIME-FREQUENCY SHIFTING AND SPECTRAL SHAPING 有权
标题翻译：采用正交时间偏移和光谱成像的通信方法
公开(公告)号：US20110292971A1
公开(公告)日：2011-12-01
申请号：US13117124
申请日：2011-05-26
申请人： Ronny Hadani , Selim Shlomo Rakib
发明人： Ronny Hadani , Selim Shlomo Rakib
IPC分类号： H04B1/692 , H04B1/713 , H04B1/69
CPC分类号： H04J11/0063 , H04L5/0016 , H04L5/0044 , H04L23/02 , H04L25/03834 , H04L27/2634 , H04L27/265 , H04L27/2655 , H04L27/2697 , H04W28/065 , H04W72/00
摘要： A wireless combination time, frequency and spectral shaping communications method that transmits data in convolution unit matrices (data frames) of N×N (N2), where generally either all N2 data symbols or elements are received over N spreading time intervals (each composed of N time slices), or none are. To transmit, each data element is assigned a unique waveform which is derived from a basic waveform of duration N time slices over one spreading time interval, where each basic waveform has a data element specific combination of a time and frequency cyclic shift. At the receiver, the received signal is correlated with the set of all N2 waveforms previously assigned to each data element by a transmitter for that specific time spreading interval, producing a unique correlation score for each one of the N2 data elements. The scores are summed over each data element, and this summation reproduces the data frame.
摘要翻译：在N×N（N2）的卷积单位矩阵（数据帧）中传输数据的无线组合时间，频率和频谱整形通信方法，其中通常在N个扩展时间间隔（每个由 N个时间片），或没有。为了传输，每个数据元素被分配唯一的波形，该唯一波形是从一个扩展时间间隔的持续时间N个时间片的基本波形导出的，其中每个基本波形具有时间和频率循环移位的数据元素特定组合。在接收机处，接收到的信号与先前由发射机分配给每个数据元素的所有N2个波形的集合相关联，以产生用于该特定时间扩展间隔的每个N2数据元素的唯一相关得分。分数在每个数据元素上求和，该求和再现数据帧。

28. 发明申请

US20110185394A1 METHOD OF CATV CABLE SAME-FREQUENCY TIME DIVISION DUPLEX DATA TRANSMISSION 有权
标题翻译：有线电视方法同频时分双工数据传输
公开(公告)号：US20110185394A1
公开(公告)日：2011-07-28
申请号：US13035993
申请日：2011-02-27
申请人： Selim Shlomo Rakib
发明人： Selim Shlomo Rakib
IPC分类号： H04N7/173
CPC分类号： H04N21/6168 , H04J3/0682 , H04L5/1469 , H04L27/2601 , H04N21/6118
摘要： Method of bidirectional Time Division Duplex (TDD) data transmission over the same RF frequency ranges of a CATV cable system. The system's slave modem clocks are time synchronized to the master clock of a master modem. The master-to-slave signal propagation times are determined and used to precisely schedule transmissions with de-minimis guard times. The frequency range may be chosen to be in the high frequency CATV range around 1 GHz to maximize backward compatibility with legacy systems, and this frequency may in turn be subdivided into multiple frequencies. In some embodiments, the CATV cable tree may be further partitioned into multiple TDD domains, and multiple local master modems, connected by a special-use optical fiber, may communicate with multiple local slave modems. The system may use MAP allocation schemes that may frequently reallocate TDD time slots and frequencies according to current or projected slave modem data needs.
摘要翻译：在CATV电缆系统的相同射频频率范围内的双向时分双工（TDD）数据传输方法。系统的从站调制解调器时钟与主调制解调器的主时钟同步。主器件到从器件的信号传播时间被确定并用于精确地调度具有最小保护时间的传输。频率范围可以被选择为在1GHz左右的高频CATV范围内以最大化与传统系统的向后兼容性，并且该频率可以再细分为多个频率。在一些实施例中，CATV电缆树可以进一步划分成多个TDD域，并且由特殊用途光纤连接的多个本地主调制解调器可以与多个本地从属调制解调器进行通信。系统可以使用MAP分配方案，其可以根据当前或预计的从调制解调器数据需要频繁地重新分配TDD时隙和频率。

29. 发明授权

US07023871B2 Wideband DOCSIS on catv systems using port-trunking 有权
标题翻译：使用端口中继的catv系统上的宽带DOCSIS
公开(公告)号：US07023871B2
公开(公告)日：2006-04-04
申请号：US10446511
申请日：2003-05-28
申请人： Paul Alan Lind , Robert James Fanfelle , Selim Shlomo Rakib
发明人： Paul Alan Lind , Robert James Fanfelle , Selim Shlomo Rakib
IPC分类号： H04J3/16
CPC分类号： H04N7/17309 , H04L12/2801 , H04L69/14 , H04N21/6118 , H04N21/6168 , Y02D50/30
摘要： Method and apparatus to carry out wideband DOCSIS both upstream and downstream in a point-to-multipoint environment of an HFC system using port trunking concepts. For the downstream, each CMTS has a frame distributor which distributes frames to various transmitters transmitting on downstream channels to be used to transmit downstream data simultaneously to a CM using wideband DOCSIS. The frame distributor adds sequence numbers in some embodiments to guarantee proper order of frames can be restored at the CM, and schedules transmissions according to quality of service considerations to meet guaranteed and committed portions of constant bit rate and variable bit rate flows. The CMTS sends and Extended Channel Enable (ECE) message to wideband capable CMs telling them which downstreams to enable. Each CM has a frame collector to which all frames received on various downstream channels are sent. The frame collector makes sure they are all there, puts them into the proper order and delivers them to a NI. Upstream wideband DOCSIS works the same way with a frame distributor in each CM and a frame collector in the CMTS. The CMTS receives bandwidth requests and controls upstream wideband DOCSIS transmissions by sending downstream UCD and MAP and ECE messages to the CMs instructing them which upstream channels to use, describing the parameters of the channel and assigning times for transmission which are simultaneous on multiple channels for upstream wideband capable CMs.
摘要翻译：在使用端口集群概念的HFC系统的点对多点环境中，在上游和下游进行宽带DOCSIS的方法和装置。对于下游，每个CMTS具有帧分配器，其将帧分发到在下游信道上发送的各种发射机，以用于使用宽带DOCSIS同时向CM发送下行数据。帧分配器在一些实施例中添加序列号，以保证可以在CM处恢复帧的适当顺序，并且根据服务质量考虑来调度传输以满足恒定比特率和可变比特率流的保证和承诺的部分。 CMTS向宽带能力的CM发送和扩展信道使能（ECE）消息，告诉他们哪些下行要启用。每个CM具有帧收集器，在各个下游信道上接收的所有帧都被发送到该帧收集器。帧收集器确保它们都在那里，将它们放入正确的顺序并将其传送到NI。上行宽带DOCSIS与CMTS中的帧分配器和CMTS中的帧收集器的工作方式相同。 CMTS通过向CM发送下行UCD和MAP和ECE消息来接收带宽请求并控制上行宽带DOCSIS传输，指示它们使用哪个上行信道，描述信道的参数和分配在多个信道上上行同步的传输时间宽带能力的CM。

30. 发明授权

US5805583A Process for communicating multiple channels of digital data in distributed systems using synchronous code division multiple access 失效
标题翻译：使用同步码分多址在分布式系统中传送数字数据的多个通道的过程
公开(公告)号：US5805583A
公开(公告)日：1998-09-08
申请号：US519509
申请日：1995-08-25
申请人： Selim Shlomo Rakib
发明人： Selim Shlomo Rakib
IPC分类号： H03M13/25 , H03M13/41 , H04B1/707 , H04B7/26 , H04H20/82 , H04H60/97 , H04J3/06 , H04J11/00 , H04J13/00 , H04J13/16 , H04L5/02 , H04L5/06 , H04L7/04 , H04L12/28 , H04L25/03 , H04L27/36 , H04N7/14 , H04N7/173 , H04N21/61 , H04B7/216
CPC分类号： H04N7/141 , H03M13/256 , H03M13/41 , H04B1/707 , H04B7/2668 , H04J13/004 , H04J13/16 , H04L12/2801 , H04L25/03343 , H04L27/362 , H04L5/023 , H04L5/026 , H04L5/06 , H04N21/6168 , H04N7/17309 , H04W48/16 , H04W56/00 , H04B2201/709709 , H04H60/97 , H04L2025/03414 , H04L7/042 , H04W12/10 , H04W74/0866
摘要： A method and apparatus for carrying out synchronous code division multiple access (SCDMA) communication of multiple channels of digital data over a shared transmission media. The system includes modems at remote units and a central unit to receive time division multiplexed digital data arranged into timeslots or channels and uses orthogonal codes to encode each channel of multiple data and spread the energy of each channel data over a frame of data transmitted in the code domain. Spreading the data this way makes the system less susceptible to impulse noise. Frames are synchronized as between remote and central units using a ranging scheme which is also useful in any other system transmitting data by frames in a distributed system where synchronizing the frames as between all units regardless of differences in propagation delays is necessary. Each frame in the SCDMA modulation scheme includes a gap or guardband containing no other data. The ranging process involves training each remote unit to impose enough delay prior to re-transmission of a barker code received from the CU such that a barker code sent by the RU arrives at the CU during the gap. The process of setting the delay in each RU is a trial and error process, and each RU starts the ranging process asynchronously. Contention resolution protocols such that only one RU is aligning to the gap at any particular time are taught.
摘要翻译：一种用于通过共享传输介质执行多信道数字数据的同步码分多址（SCDMA）通信的方法和装置。该系统包括远程单元的调制解调器和中央单元，用于接收布置在时隙或信道中的时分复用数字数据，并使用正交码来对多个数据的每个信道进行编码，并将每个信道数据的能量扩展到代码域。以这种方式传播数据使得系统不易受到脉冲噪声的影响。帧在远程和中央单元之间使用测距方案同步，该测距方案对于在分布式系统中以帧的方式传输数据的任何其他系统也是有用的，其中在不考虑传播延迟之间的差异的情况下，在所有单元之间同步帧。 SCDMA调制方案中的每个帧包括不包含其他数据的间隙或保护带。测距过程涉及训练每个远程单元以在重新发送从CU接收到的巴克码之前施加足够的延迟，使得由RU发送的巴克码在间隙期间到达CU。在每个RU中设置延迟的过程是一个试错过程，每个RU异步启动测距过程。教导了在任何特定时间只有一个RU与间隙对齐的竞争解决协议。

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