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1. 发明授权

US08130642B2 Downstream synchronous multichannels for a communications management system 有权
标题翻译：用于通信管理系统的下行同步多通道
公开(公告)号：US08130642B2
公开(公告)日：2012-03-06
申请号：US12258585
申请日：2008-10-27
申请人： Daniel H. Howard , Niki R. Pantelias , David M. Pullen , John D. Horton , Thomas J. Quigley, Jr. , Richard S. Prodan
发明人： Daniel H. Howard , Niki R. Pantelias , David M. Pullen , John D. Horton , Thomas J. Quigley, Jr. , Richard S. Prodan
IPC分类号： H04L12/26
CPC分类号： H04L49/3072
摘要： Downstream synchronous multichannel (DSSM) communications are provided among a plurality of carriers, each being a completely DOCSIS™ 2.0-compliant downstream. The synchronous multichannels support communications with both DSSM-capable communications nodes and non-DSSM-capable communications nodes (e.g., legacy cable modems). Non-DSSM packets are transmitted on a single channel. DSSM packets are split into multiple pieces, which are transmitted simultaneously on all available channels. Since the physical delay variation (e.g., group delay change) across the adjacent carriers is small (on the order of a symbol time), the multiple pieces arrive at the receiving communications nodes at nearly the same time and can be reassembled with minimal buffering and no packet ordering problems. To avoid causing trouble for the non-DSSM-capable communications nodes, the packet pieces are encapsulated with a header that causes the non-DSSM-capable communications nodes to silently discard them.
摘要翻译：在多个载波之间提供下行同步多信道（DSSM）通信，每个载波是完全符合DOCSIS TM 2.0标准的下行链路。同步多通道支持与具有DSSM能力的通信节点和不支持DSSM的通信节点（例如，传统电缆调制解调器）的通信。非DSSM分组在单个信道上传输。 DSSM数据包被分成多个部分，它们在所有可用信道上同时传输。由于跨越相邻载波的物理延迟变化（例如，组延迟变化）较小（符号时间的顺序），多个片段几乎同时到达接收通信节点，并且可以以最小的缓冲重新组合，没有数据包排序问题。为了避免对具有非DSSM功能的通信节点造成麻烦，这些分组被封装成一个报头，该报头使非DSSM能力的通信节点静默地丢弃它们。

2. 发明授权

US07697546B2 Synchronization of distributed cable modem network components 有权
标题翻译：分布式电缆调制解调器网络组件的同步
公开(公告)号：US07697546B2
公开(公告)日：2010-04-13
申请号：US11061147
申请日：2005-02-18
申请人： Bruce J. Currivan , Alexander G. MacInnis , Thomas J. Kolze , Richard S. Prodan
发明人： Bruce J. Currivan , Alexander G. MacInnis , Thomas J. Kolze , Richard S. Prodan
IPC分类号： H04L12/28
CPC分类号： H04J3/0682
摘要： A distributed cable modem termination system of the present invention includes a downstream transmitter hub, an upstream receiver hub, and a head end that communicatively couples to the downstream transmitter hub and to the upstream receiver hub via a packet data network. The head end and the downstream transmitter hub are operable to synchronize a clock of the downstream transmitter hub with a clock of the head end. Further, the upstream receiver hub and the downstream transmitter hub are operable to synchronize a clock of the upstream receiver hub with the clock of the downstream transmitter hub. Clock synchronization between the upstream receiver hub and the downstream transmitter hub are performed using ranging operations supported by at least one cable modem communicatively coupled to both the upstream receiver hub and the downstream transmitter hub via cable modem network plant.
摘要翻译：本发明的分布式电缆调制解调器终端系统包括下行发射机集线器，上游接收集线器和头端，其通过分组数据网络通信耦合到下游发射机集线器和上游接收集线器。头端和下游发射器集线器可操作以使下游发射器集线器的时钟与头端的时钟同步。此外，上游接收器集线器和下游发射器集线器可操作以将上游接收器集线器的时钟与下游发射器集线器的时钟同步。上游接收器集线器和下游发射器集线器之间的时钟同步使用通过电缆调制解调器网络设备通信地耦合到上游接收器集线器和下游发射机集线器的至少一个电缆调制解调器支持的测距操作来执行。

3. 发明授权

US4959715A Method and apparatus for converting an interlaced television transmission to a sequential display using maximum likelihood estimation 失效
标题翻译：用于使用最大似然估计将隔行扫描传输转换为顺序显示的方法和装置
公开(公告)号：US4959715A
公开(公告)日：1990-09-25
申请号：US367521
申请日：1989-06-16
申请人： Richard S. Prodan
发明人： Richard S. Prodan
IPC分类号： H04N5/44
CPC分类号： H04N7/012 , Y10S348/911
摘要： A method and apparatus for detecting a maximum vertical frequency component in a received interlaced transmission and substituting therefore, a uniform zero vertical frequency component in order to form a sequential scan display without introducing motion induced artifacts.
摘要翻译：一种用于检测接收到的隔行扫描传输中的最大垂直频率分量并由此代替均匀的零垂直频率分量以便形成顺序扫描显示而不引入运动引起的伪影的方法和装置。

4. 发明授权

US08681615B2 Multichannels for a communications management system 有权
标题翻译：通信管理系统的多通道
公开(公告)号：US08681615B2
公开(公告)日：2014-03-25
申请号：US13411750
申请日：2012-03-05
申请人： Daniel H. Howard , Niki R. Pantelias , David M. Pullen , John D. Horton, Jr. , Thomas J. Quigley , Richard S. Prodan
发明人： Daniel H. Howard , Niki R. Pantelias , David M. Pullen , John D. Horton, Jr. , Thomas J. Quigley , Richard S. Prodan
IPC分类号： H04L12/26
CPC分类号： H04L49/3072
摘要： Downstream synchronous multichannel (DSSM) communications are provided among a plurality of carriers, each being a completely DOCSIS™ 2.0-compliant downstream. The synchronous multichannels support communications with both DSSM-capable communications nodes and non-DSSM-capable communications nodes (e.g., legacy cable modems). Non-DSSM packets are transmitted on a single channel. DSSM packets are split into multiple pieces, which are transmitted simultaneously on all available channels. Since the physical delay variation (e.g., group delay change) across the adjacent carriers is small (on the order of a symbol time), the multiple pieces arrive at the receiving communications nodes at nearly the same time and can be reassembled with minimal buffering and no packet ordering problems. To avoid causing trouble for the non-DSSM-capable communications nodes, the packet pieces are encapsulated with a header that causes the non-DSSM-capable communications nodes to silently discard them.
摘要翻译：在多个载波之间提供下行同步多信道（DSSM）通信，每个载波是完全符合DOCSIS TM 2.0标准的下行链路。同步多通道支持与具有DSSM能力的通信节点和不支持DSSM的通信节点（例如，传统电缆调制解调器）的通信。非DSSM分组在单个信道上传输。 DSSM数据包被分成多个部分，它们在所有可用信道上同时传输。由于跨越相邻载波的物理延迟变化（例如，组延迟变化）较小（符号时间的顺序），多个片段几乎同时到达接收通信节点，并且可以以最小的缓冲重新组合，没有数据包排序问题。为了避免对具有非DSSM功能的通信节点造成麻烦，这些分组被封装成一个报头，该报头使非DSSM能力的通信节点静默地丢弃它们。

5. 发明申请

US20100296511A1 Hierarchical Flow-Level Multi-Channel Communication 有权
标题翻译：分层流水平多通道通信
公开(公告)号：US20100296511A1
公开(公告)日：2010-11-25
申请号：US12847839
申请日：2010-07-30
申请人： Richard S. Prodan , Joel Danzig , Thomas J. Quigley , Niki R. Pantelias
发明人： Richard S. Prodan , Joel Danzig , Thomas J. Quigley , Niki R. Pantelias
IPC分类号： H04L12/56
CPC分类号： H04L45/24 , H04L5/0007 , H04L12/2801 , H04L25/14 , H04L27/34 , H04L69/14 , H04N7/16 , H04N7/17309 , H04N21/2385 , H04N21/6118 , H04N21/6168 , H04N21/6377 , H04N21/658 , Y02D50/30
摘要： Embodiments herein provide systems and methods of transferring data in a communication system. An embodiment transfers data by assigning a portion of data among groups of channels coupled to a remote node, such assigning being based on the respective flows to which the portion is associated. The portion of data across is at least two channels in the assigned group of channels, and the split portions are transferred substantially simultaneously among the channels to which they are assigned.
摘要翻译：本文的实施例提供了在通信系统中传送数据的系统和方法。实施例通过在耦合到远程节点的信道组中分配数据的一部分来传送数据，这种分配基于与该部分相关联的相应流。数据跨越的部分是在分配的信道组中的至少两个信道，并且分离部分在它们被分配到的信道之间基本上同时传送。

6. 发明授权

US08537680B2 Hierarchical flow-level multi-channel communication 有权
公开(公告)号：US08537680B2
公开(公告)日：2013-09-17
申请号：US12847839
申请日：2010-07-30
申请人： Richard S. Prodan , Joel Danzig , Thomas J. Quigley , Niki R. Pantelias
发明人： Richard S. Prodan , Joel Danzig , Thomas J. Quigley , Niki R. Pantelias
IPC分类号： H04J1/16 , H04J3/16
CPC分类号： H04L45/24 , H04L5/0007 , H04L12/2801 , H04L25/14 , H04L27/34 , H04L69/14 , H04N7/16 , H04N7/17309 , H04N21/2385 , H04N21/6118 , H04N21/6168 , H04N21/6377 , H04N21/658 , Y02D50/30
摘要： Embodiments herein provide systems and methods of transferring data in a communication system. An embodiment transfers data by assigning a portion of data among groups of channels coupled to a remote node, such assigning being based on the respective flows to which the portion is associated. The portion of data across is at least two channels in the assigned group of channels, and the split portions are transferred substantially simultaneously among the channels to which they are assigned.

7. 发明授权

US5825242A Modulator/demodulator using baseband filtering 失效
标题翻译：使用基带滤波的调制器/解调器
公开(公告)号：US5825242A
公开(公告)日：1998-10-20
申请号：US576809
申请日：1995-12-21
申请人： Richard S. Prodan , Thomas H. Williams
发明人： Richard S. Prodan , Thomas H. Williams
IPC分类号： H03K7/02 , H03K9/02 , H04L27/00 , H04L27/02 , H04L27/38 , H04N5/44 , H04N5/455 , H04N5/46 , H03D1/24 , H03C1/52 , H04L27/36
CPC分类号： H04L27/0008 , H04L27/02 , H04L27/3827 , H04N5/4401 , H04N5/455 , H04N5/46
摘要： A modulation and demodulation scheme for video signals may be used for HDTV signals using VSB-PAM, analog NTSC signals using VSB-AM and digital video signals using QAM. VSB-PAM modulation and demodulation may be performed using in-phase and quadrature baseband filters. By adjusting the filter taps, a single modulator structure may be used for QAM and VSB-PAM modulation. Similarly, a single demodulator structure may be used for QAM and VSB-PAM demodulation. This demodulator may also be used for VSB-AM modulation.
摘要翻译：视频信号的调制和解调方案可以用于使用VSB-PAM的HDTV信号，使用VSB-AM的模拟NTSC信号和使用QAM的数字视频信号。可以使用同相和正交基带滤波器来执行VSB-PAM调制和解调。通过调整滤波器抽头，单个调制器结构可用于QAM和VSB-PAM调制。类似地，单个解调器结构可以用于QAM和VSB-PAM解调。该解调器也可用于VSB-AM调制。

8. 发明授权

US5815488A Multiple user access method using OFDM 失效
标题翻译：使用OFDM的多用户接入方法
公开(公告)号：US5815488A
公开(公告)日：1998-09-29
申请号：US535593
申请日：1995-09-28
申请人： Thomas H. Williams , Richard S. Prodan
发明人： Thomas H. Williams , Richard S. Prodan
IPC分类号： H04L5/02 , H04J11/00
CPC分类号： H04L5/023
摘要： A communication method enables a plurality of remote locations to transmit data to a central location. The remote locations simultaneously share a channel and there is a high degree of immunity to channel impairments. At each remote location, data to be transmitted is coded by translating each group of one or more bits of the data into a transform coefficient associated with a frequency in a particular subset of orthonormal baseband frequencies allocated to each remote location. The particular subset of orthonormal baseband frequencies allocated to each location is chosen from a set of orthonormal baseband frequencies. At each remote location, an electronic processor performs an inverse orthogonal transform (e.g., an inverse Fourier Transform) on the transform coefficients to obtain a block of time domain data. The time domain data is then modulated on a carrier for transmission to the central location. Preferably, the time intervals for data transmission at the different remote locations are aligned with each other. In one embodiment of the invention, all of the baseband frequencies are allocated to a single particular remote location for one time slot. At the remote location, data is received from a plurality of remote locations. The data is demodulated to obtain baseband time domain data. The orthogonal transform is performed on this data to obtain transform coefficients. Each transform coefficient is associated with a baseband frequency. The central location keeps track of which baseband frequencies are allocated to which remote location for subsequent translation of each transform coefficient.
摘要翻译：通信方法使得多个远程位置能够将数据发送到中心位置。远程位置同时共享通道，并且对通道损伤具有高度的抗扰度。在每个远程位置，通过将数据的一个或多个位的每一组转换为与分配给每个远程位置的正交基带频率的特定子集中的频率相关联的变换系数来编码要发送的数据。从一组正交基带频率中选择分配给每个位置的正交基带频率的特定子集。在每个远程位置，电子处理器对变换系数执行逆正交变换（例如，逆傅里叶变换），以获得时域数据块。然后将时域数据在载波上调制以传输到中心位置。优选地，不同远程位置处的数据传输的时间间隔彼此对准。在本发明的一个实施例中，将所有基带频率分配给单个特定的远程位置用于一个时隙。在远程位置，从多个远程位置接收数据。数据被解调以获得基带时域数据。对该数据进行正交变换以获得变换系数。每个变换系数与基带频率相关。中心位置跟踪哪个基带频率被分配到哪个远程位置用于随后的每个变换系数的转换。

9. 发明授权

US4768093A Vertical pre-filter for pip television receivers 失效
标题翻译：点阵电视接收机的垂直预滤波器
公开(公告)号：US4768093A
公开(公告)日：1988-08-30
申请号：US871188
申请日：1986-06-05
申请人： Richard S. Prodan
发明人： Richard S. Prodan
IPC分类号： H04N5/45 , H04N5/265 , H04N9/64 , H04N5/14
CPC分类号： H04N9/641
摘要： A vertical filter for filtering digital television signals in which the length of the filter may be greater than the decimation factor. The vertical filter includes a first and a second multiplier-accumulator section each having a multiplier for receiving each line in the digital television signal and for multiplying each line by a respective filter coefficient, a switch having a first input connected to an output of the multiplier, a line delay circuit connected to an output of the switch, and an adder circuit connected to the output of the multiplier and the line delay circuit. The vertical filter further includes a multiplexer connected to the outputs of the first and second multiplier-accumulator sections for alternatively applying the outputs of the first and second multiplier-accumulators to the output of the filter.
摘要翻译：用于滤波数字电视信号的垂直滤波器，其中滤波器的长度可以大于抽取因子。垂直滤波器包括第一和第二乘法器累加器部分，每个部分具有用于接收数字电视信号中的每一行的乘法器，并且用于将每条线乘以相应的滤波器系数，具有连接到乘法器的输出的第一输入的开关连接到开关的输出的线路延迟电路，以及连接到乘法器和线路延迟电路的输出的加法器电路。垂直滤波器还包括连接到第一和第二乘法器累加器部分的输出的多路复用器，用于将第一和第二乘法器累加器的输出交替地施加到滤波器的输出。

10. 发明申请

US20110170632A1 Digital Up-Converter and N-Channel Modulator With Flexible Association of QAM Generation Resources to Narrowcast and Broadcast Frequencies 有权
标题翻译：数字上变频器和N通道调制器，具有灵活的QAM生成资源关联到窄播和广播频率
公开(公告)号：US20110170632A1
公开(公告)日：2011-07-14
申请号：US12986772
申请日：2011-01-07
申请人： Joel I. Danzig , Richard S. Prodan , Niki Pantelias , Thomas Kolze , Victor T. Hou , Taruna Tjahjadi
发明人： Joel I. Danzig , Richard S. Prodan , Niki Pantelias , Thomas Kolze , Victor T. Hou , Taruna Tjahjadi
IPC分类号： H04L27/36 , H04L25/03
CPC分类号： H04N5/40 , H04L5/06 , H04L25/03006 , H04L27/36
摘要： Embodiments of a digital up-converter and an N-channel modulator are provided herein. The embodiments of the digital up-converter, in combination with the N-channel modulator, are capable of efficiently filling the spectrum of one or more RF signals with one or more types of information signals. For example, the digital up-converter can fill the spectrum of one or more RF signals with both broadcast and narrowcast video and data signals. In addition, the digital up-converter is capable of flexibly mapping the information signals to one or more channels of the one or more RF signals using a novel, three-level switching architecture.
摘要翻译：本文提供数字上变频器和N沟道调制器的实施例。数字上变频器与N信道调制器结合的实施例能够利用一种或多种类型的信息信号有效地填充一个或多个RF信号的频谱。例如，数字上变频器可以用广播和窄视频和数据信号来填充一个或多个RF信号的频谱。此外，数字上变频器能够使用新颖的三电平交换架构将信息信号灵活地映射到一个或多个RF信号的一个或多个信道。

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