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1. 发明授权

US4748667A Jamming signal scrambling and descrambling systems for CATV 失效
标题翻译：用于CATV的干扰信号加扰和解扰系统
公开(公告)号：US4748667A
公开(公告)日：1988-05-31
申请号：US926749
申请日：1986-11-04
申请人： James O. Farmer , Anatoly Kozushin , Herman A. Kruse , William P. LaFay , Christopher P. Lewis , Frank R. Little, Jr. , Leo Montreuil , Leo J. Thompson , Lamar E. West, Jr. , Joseph G. Mobley, II
发明人： James O. Farmer , Anatoly Kozushin , Herman A. Kruse , William P. LaFay , Christopher P. Lewis , Frank R. Little, Jr. , Leo Montreuil , Leo J. Thompson , Lamar E. West, Jr. , Joseph G. Mobley, II
IPC分类号： H04N7/16 , H04N7/167 , H03H7/00
CPC分类号： H04K3/825 , H04K3/42 , H04N7/166 , H04K2203/14 , H04K3/43
摘要： Scrambling and descrambling systems utilizing jamming signals provide improved pictures with minimal distortion due to ghosts and artifacts. The television signal is combined with a jamming signal or signals located preferably in the vestigial sideband (VSB) of the modulated picture carrier and at about a null in the spectrum of the modulation of the picture carrier by the horizontal sync. The jamming signal or signals also preferably are placed between the harmonic components of the horizontal sync which define the horizontal sync spectrum and at frequencies which comply with governmental regulations respecting frequency locations of strong signals of CATV purposes. The jamming signals are generated by phase locking to the horizontal sync signals of the television signals or to a submultiple of the horizontal sync frequency. Artifacts are further reduced by preemphasis of the transmitted television signal in the sideband opposite to that in which the jamming signal or signals are located and spaced by an equal frequency increment from the location of the jamming signal energy. In order to extract the jamming signal, so as to descramble the television signal for reproduction in the subscriber's television receiver, a network including at least one surface acoustic wave (SAW) resonator device is embedded in an all-pass network which allows essentially lossless transmission of the television signal spectrum, except for the jamming signal energy and enables that energy to be located close to (e.g., approximately 228 KHz) from the picture carrier in the VSB for enhanced security.
摘要翻译：使用干扰信号的加扰和解扰系统由于鬼影和伪像而提供了具有最小失真的改进图像。电视信号与优选地位于调制图像载体的残留边带（VSB）中的干扰信号或信号组合，并且在水平同步的图像载波的调制频谱中约为零。干扰信号或信号还优选地被放置在水平同步的谐波分量之间，其定义了水平同步频谱，并且频率符合有关CATV目的的强信号的频率位置的政府规定。干扰信号通过相位锁定到电视信号的水平同步信号或水平同步频率的亚数来产生。通过在与干扰信号或信号所在的边带相反的边带中预先强调发送的电视信号并且从干扰信号能量的位置间隔相等的频率增量来进一步减少伪影。为了提取干扰信号，为了解扰电视信号以在用户的电视接收机中进行再现，包括至少一个表面声波（SAW）谐振器装置的网络被嵌入在全通网络中，其允许基本上无损耗的传输的电视信号频谱，除了干扰信号能量，并使能量位于VSB中的图像载体附近（例如，大约228KHz），以增强安全性。

2. 发明申请

US20110215873A1 NOVEL SWITCHED PHASE AND FREQUENCY DETECTOR BASED DPLL CIRCUIT WITH EXCELLENT WANDER AND JITTER PERFORMANCE AND FAST FREQUENCY ACQUISITION 有权
标题翻译：基于新型开关相位和频率检测器的DPLL电路，具有优异的宽带和抖动性能和快速采集
公开(公告)号：US20110215873A1
公开(公告)日：2011-09-08
申请号：US12715749
申请日：2010-03-02
申请人： Leo Montreuil , Larry Stephen McKinney , Jiening Ao , Joel Paul Jenkins
发明人： Leo Montreuil , Larry Stephen McKinney , Jiening Ao , Joel Paul Jenkins
IPC分类号： H03L7/00
CPC分类号： H03L7/00 , Y10S331/02
摘要： Some embodiments of the present invention may include a DPLL circuit comprising a firmware. The firmware may comprise a re-sampled NCO phase detector capable of receiving a reference clock timing signal and a VCXO clock timing signal. The re-sampled NCO phase detector may comprise a resampler capable of receiving phase output and the VCXO clock timing signal and resampling the phase output; and a subtractor capable of receiving the resampled phase output and subtracting the resampled phase output from a calculated mean value of the phase output. The firmware may further comprise a frequency detector capable of receiving the reference clock timing signal and the VCXO clock timing signal; and a multiplexer capable of switching between the re-sampled NCO phase detector and the frequency detector dependent upon a frequency lock status.
摘要翻译：本发明的一些实施例可以包括包括固件的DPLL电路。固件可以包括能够接收参考时钟定时信号和VCXO时钟定时信号的重新采样的NCO相位检测器。重新采样的NCO相位检测器可以包括能够接收相位输出和VCXO时钟定时信号并重新采样相位输出的重采样器; 以及减法器，其能够从所计算的相位输出的平均值接收所述重采样相位输出并减去所述重采样相位输出。固件还可以包括能够接收参考时钟定时信号和VCXO时钟定时信号的频率检测器; 以及能够根据频率锁定状态在重新采样的NCO相位检测器和频率检测器之间切换的多路复用器。

3. 发明申请

US20080022338A1 Set Top Calibration Patterns in Manufacturing 审中-公开
标题翻译：在制造中设置顶级校准模式
公开(公告)号：US20080022338A1
公开(公告)日：2008-01-24
申请号：US11427742
申请日：2006-06-29
申请人： Leo Montreuil , Wayne B. Williams , Samuel H. Russ , Robert A. Kriete
发明人： Leo Montreuil , Wayne B. Williams , Samuel H. Russ , Robert A. Kriete
IPC分类号： H04N7/173 , H04N7/16
CPC分类号： H04N17/004 , H04N17/04
摘要： Included are systems and methods for testing functionality of a set top terminal (STT). At least one embodiment of a method includes retrieving a test pattern from a storage device, the test pattern being configured to facilitate testing of at least one component of the STT, decoding the retrieved test pattern, and converting the decoded test pattern to at least one analog signal.
摘要翻译：包括用于测试机顶终端（STT）功能的系统和方法。方法的至少一个实施例包括从存储设备检索测试模式，测试模式被配置为便于测试STT的至少一个组件，解码所检索的测试模式，以及将解码的测试模式转换成至少一个模拟信号。

4. 发明授权

US5960044A Apparatus and method for block phase estimation 失效
标题翻译：用于块相位估计的装置和方法
公开(公告)号：US5960044A
公开(公告)日：1999-09-28
申请号：US749025
申请日：1996-11-14
申请人： Leo Montreuil
发明人： Leo Montreuil
IPC分类号： H03D3/00 , H04L27/00 , H04L27/227 , H04L27/233 , H04L27/38 , H03D1/24
CPC分类号： H04L27/2332 , H03D3/006 , H03D3/007 , H04L2027/003 , H04L2027/0046 , H04L2027/0067 , H04L2027/0069
摘要： A block phase estimator include a phase averaging circuit. A first embodiment of the phase averaging circuit includes a phase differencing circuit coupled to an averager input, a first modulo circuit coupled to the phase differencing circuit, a filter coupled to the first modulo circuit, and a summation circuit having an positive input and a negative input, the positive input being coupled to the averager input, the negative input being coupled to the filter. The phase averaging circuit further includes a second modulo circuit coupled to the summation circuit. An alternative embodiment of the phase averaging circuit includes a delay line having a plurality of taps coupled to an averager input and a plurality of first subtractor circuits, a first input of each first subtractor circuit being coupled to the averager input, a second input of each first subtractor circuit being coupled to a corresponding tap of the plurality of taps. A plurality of first modulo circuits are coupled to the plurality of first subtractor circuits, each first modulo circuit being coupled to a corresponding first subtractor circuit. A summation circuit is coupled to all first modulo circuits, and a scaling circuit is coupled to the summation circuit. The phase averaging circuit further includes a second subtractor circuit, a first input of the second subtractor circuit being coupled to the averager input, a second input of the second subtractor circuit being coupled to the scaling circuit.
摘要翻译：块相位估计器包括相位平均电路。相位平均电路的第一实施例包括耦合到平均器输入的相位差分电路，耦合到相位差电路的第一模数电路，耦合到第一模数电路的滤波器以及具有正输入和负的总和电路输入，正输入耦合到平均器输入，负输入耦合到滤波器。相位平均电路还包括耦合到求和电路的第二模数电路。相位平均电路的替代实施例包括具有耦合到平均器输入的多个抽头和多个第一减法器电路的延迟线，每个第一减法器电路的第一输入耦合到平均器输入，每个第二输入第一减法器电路耦合到多个抽头的对应抽头。多个第一模数电路耦合到多个第一减法器电路，每个第一模数电路耦合到对应的第一减法器电路。求和电路耦合到所有第一模数电路，并且缩放电路耦合到求和电路。相位平均电路还包括第二减法器电路，第二减法器电路的第一输入端耦合到平均器输入端，第二减法器电路的第二输入端耦合到缩放电路。

5. 发明授权

US08286067B2 Method for transmitting sampled data and control information between a DSP and an RF/analog front-end 有权
标题翻译：在DSP和RF /模拟前端之间传输采样数据和控制信息的方法
公开(公告)号：US08286067B2
公开(公告)日：2012-10-09
申请号：US12581740
申请日：2009-10-19
申请人： Vladimir Friedman , Reza Alavi , Raju Hormis , Leo Montreuil
发明人： Vladimir Friedman , Reza Alavi , Raju Hormis , Leo Montreuil
IPC分类号： G06F11/10
CPC分类号： H04L12/2838 , H03M13/093 , H04L1/0057 , H04L2012/2849
摘要： A method for delivering control information together with sampled data between a DSP and an RF/analog front-end in a high speed communication modem, which embeds sampled data and control information in frames to be transferred over one interface. A frame may comprise various fields, each may consist of one or more bytes or octets. The frame may have a data field for carrying the sampled data, and at least one control field for transferring the control information to update RF/analog front-end registers. The control field may include an octet containing a control address, an octet containing a control command, and an octet containing control data. The frame may also provide means of synchronization, e.g., by using a sync field to identify the frame boundary.
摘要翻译：一种用于在高速通信调制解调器中的DSP和RF /模拟前端之间传送控制信息以及采样数据的方法，该方法将采样数据和控制信息嵌入到要通过一个接口传送的帧中。帧可以包括各种字段，每个字段可以由一个或多个字节或八位字节组成。帧可以具有用于承载采样数据的数据字段，以及用于传送控制信息以更新RF /模拟前端寄存器的至少一个控制字段。控制字段可以包括包含控制地址的八位字节，包含控制命令的八位字节和包含控制数据的八位位组。该帧还可以提供同步的方式，例如通过使用同步字段来识别帧边界。

6. 发明申请

US20100199158A1 METHOD FOR TRANSMITTING SAMPLED DATA AND CONTROL INFORMATION BETWEEN A DSP AND AN RF/ANALOG FRONT-END 有权
标题翻译：用于发送DSP和RF /模拟前端之间的采样数据和控制信息的方法
公开(公告)号：US20100199158A1
公开(公告)日：2010-08-05
申请号：US12581740
申请日：2009-10-19
申请人： Vladimir Friedman , Reza Alavi , Raju Hormis , Leo Montreuil
发明人： Vladimir Friedman , Reza Alavi , Raju Hormis , Leo Montreuil
IPC分类号： H04B1/38 , H03M13/09 , G06F11/10
CPC分类号： H04L12/2838 , H03M13/093 , H04L1/0057 , H04L2012/2849
摘要： A method for delivering control information together with sampled data between a DSP and an RF/analog front-end in a high speed communication modem, which embeds sampled data and control information in frames to be transferred over one interface. A frame may comprise various fields, each may consist of one or more bytes or octets. The frame may have a data field for carrying the sampled data, and at least one control field for transferring the control information to update RF/analog front-end registers. The control field may include an octet containing a control address, an octet containing a control command, and an octet containing control data. The frame may also provide means of synchronization, e.g., by using a sync field to identify the frame boundary.
摘要翻译：一种用于在高速通信调制解调器中的DSP和RF /模拟前端之间传送控制信息以及采样数据的方法，该方法将采样数据和控制信息嵌入到要通过一个接口传送的帧中。帧可以包括各种字段，每个字段可以由一个或多个字节或八位字节组成。帧可以具有用于承载采样数据的数据字段，以及用于传送控制信息以更新RF /模拟前端寄存器的至少一个控制字段。控制字段可以包括包含控制地址的八位字节，包含控制命令的八位字节和包含控制数据的八位位组。该帧还可以提供同步的方式，例如通过使用同步字段来识别帧边界。

7. 发明授权

US07499822B2 Analog set top calibration patterns in manufacturing 有权
标题翻译：模拟机顶校准模式在制造中
公开(公告)号：US07499822B2
公开(公告)日：2009-03-03
申请号：US11427745
申请日：2006-06-29
申请人： Leo Montreuil , Wayne B. Williams , Samuel H. Russ , Robert A. Kriete
发明人： Leo Montreuil , Wayne B. Williams , Samuel H. Russ , Robert A. Kriete
IPC分类号： G06F3/02
CPC分类号： H04N17/004 , H04N17/045
摘要： Included are systems and methods for performing a functionality test to an STT. At least one embodiment of a method includes storing at least one test pattern in a storage device, decoding the at least one stored test pattern, and sending the test pattern from a output port to an input port, the input port being coupled to at least one tuning device. Other embodiments include tuning, via the at least one tuning device, the STT according to the test pattern and converting the decoded test pattern to at least one output signal.
摘要翻译：包括用于对STT执行功能测试的系统和方法。方法的至少一个实施例包括将至少一个测试模式存储在存储设备中，解码至少一个存储的测试模式，以及将测试模式从输出端口发送到输入端口，该输入端口至少耦合到一个调谐装置其他实施例包括经由至少一个调谐装置根据测试图案调整STT，并将解码的测试图案转换成至少一个输出信号。

8. 发明申请

US20080004830A1 Analog Set Top Calibration Patterns in Manufacturing 有权
标题翻译：模拟组合制造中的顶级校准模式
公开(公告)号：US20080004830A1
公开(公告)日：2008-01-03
申请号：US11427745
申请日：2006-06-29
申请人： Leo Montreuil , Wayne B. Williams , Samuel H. Russ , Robert A. Kriete
发明人： Leo Montreuil , Wayne B. Williams , Samuel H. Russ , Robert A. Kriete
IPC分类号： G06F19/00
CPC分类号： H04N17/004 , H04N17/045
摘要： Included are systems and methods for performing a functionality test to an STT. At least one embodiment of a method includes storing at least one test pattern in a storage device, decoding the at least one stored test pattern, and sending the test pattern from a output port to an input port, the input port being coupled to at least one tuning device. Other embodiments include tuning, via the at least one tuning device, the STT according to the test pattern and converting the decoded test pattern to at least one output signal.
摘要翻译：包括用于对STT执行功能测试的系统和方法。方法的至少一个实施例包括将至少一个测试模式存储在存储设备中，解码至少一个存储的测试模式，以及将测试模式从输出端口发送到输入端口，该输入端口至少耦合到一个调谐装置其他实施例包括经由至少一个调谐装置根据测试图案调整STT，并将解码的测试图案转换成至少一个输出信号。

9. 发明授权

US08850509B2 Multiple frequency channel data distribution 有权
标题翻译：多频道数据分布
公开(公告)号：US08850509B2
公开(公告)日：2014-09-30
申请号：US12342387
申请日：2008-12-23
申请人： Jeffrey Scott Ford , Jack Thomas Matheney , Leo Montreuil
发明人： Jeffrey Scott Ford , Jack Thomas Matheney , Leo Montreuil
IPC分类号： H04N7/16 , H04N21/4363 , H04N21/436 , H04L12/28
CPC分类号： H04N21/43615 , H04L12/2801 , H04N21/43632 , H04N21/43637
摘要： An enhanced multimedia over coax alliance (MoCA) implementation having a single Receive (Rx) physical (Phy) module that is arranged to receive data via one of at least two Rx radio frequency (RF) modules, which are arranged to be in communication with a coaxial cable, and at least two transmit (Tx) Phy modules respectively arranged to be in communication with two Tx RF modules, which are also arranged to be in communication with the coaxial cable.
摘要翻译：具有单个接收（Rx）物理（Phy）模块的通过同轴电缆联盟（MoCA）实现的增强型多媒体，其被布置为经由至少两个Rx射频（RF）模块之一接收数据，所述至少两个Rx射频（RF）模块被布置为与同轴电缆和至少两个分别布置成与两个Tx RF模块通信的发射（Tx）Phy模块，这两个Tx RF模块也被布置为与同轴电缆通信。

10. 发明授权

US08774217B2 Time domain duplex between CMTS and cable modems 有权
标题翻译： CMTS和电缆调制解调器之间的时域双工
公开(公告)号：US08774217B2
公开(公告)日：2014-07-08
申请号：US13288177
申请日：2011-11-03
申请人： John T. Chapman , Alon Bernstein , Leo Montreuil
发明人： John T. Chapman , Alon Bernstein , Leo Montreuil
IPC分类号： H04J3/16
CPC分类号： H04L5/1469 , H04H20/79 , H04L5/0007 , H04N21/2221 , H04N21/2408 , H04N21/42676 , H04N21/6168 , H04N21/64322
摘要： A time domain duplex cable system includes a mechanism to change the communication direction of spectrum used in a cable plant including a Cable Modem Termination System (CMTS), a Fiber Node and a plurality of cable modems in communication with the CMTS via the Fiber Node. Active devices, e.g., directional amplifiers switch the communication direction of the cable plant in response to timing information received from the CMTS. To avoid collisions of downstream and upstream packets, a guard time is determined and used in connection with generating the timing information. In one embodiment, the timing information is transmitted in one or more Data Over Cable Service Interface Specifications (DOCSIS) Media Access Protocol (MAP) messages transmitted by the CMTS towards the cable modems.
摘要翻译：时域双工电缆系统包括用于改变电缆设备中使用的频谱的通信方向的机制，该电缆设备包括通过光纤节点与CMTS通信的电缆调制解调器终端系统（CMTS），光纤节点和多个电缆调制解调器。有源设备，例如定向放大器，响应于从CMTS接收的定时信息，切换电缆设备的通信方向。为了避免下游和上游分组的冲突，确定保护时间并且与生成定时信息一起使用。在一个实施例中，定时信息在由CMTS向电缆调制解调器发送的一个或多个数据有线服务接口规范（DOCSIS）媒体接入协议（MAP）消息中发送。

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