公开(公告)号：WO1998026528A3

公开(公告)日：1998-06-18

申请号：PCT/US1997022535

申请日：1997-12-09

Applicant: SCIENTIFIC-ATLANTA, INC. ,  ADDINGTON, Timothy, H. ,  DeFREESE, Darryl, L.

Inventor： SCIENTIFIC-ATLANTA, INC.

IPC: G06F17/30

公开(公告)号：WO1997047168A1

公开(公告)日：1997-12-11

申请号：PCT/US1997008155

申请日：1997-05-09

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  McCANN, Andrew, F.

IPC: H05K07/20

CPC classification number: H05K7/20409

Abstract: A housing for heat emitting components includes a housing body and a housing cover (50). The housing cover (50) includes an interior portion occupied by the heat emitting components when the housing body engages the housing cover (50), and a volumetric cooling element (60, 65, 70, 75) including a plurality of internal fins arranged to occupy a volume adjacent to the interior portion of the housing cover (50) when housing body (10) engages the housing cover (50), wherein the internal fins volumetrically cool the volume.

Abstract translation: 用于发热部件的壳体包括壳体和壳体盖（50）。 壳体盖（50）包括当壳体接合壳体盖（50）时由发热部件占据的内部部分和包括多个内部散热片的体积冷却元件（60,65,70,75），其布置成 当壳体（10）接合壳体盖（50）时，占据与壳体盖（50）的内部相邻的体积，其中内部翼片体积地冷却该体积。

公开(公告)号：WO1997047103A2

公开(公告)日：1997-12-11

申请号：PCT/US1997009384

申请日：1997-06-03

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  JELINEK, Catherine, W. ,  LABICHE, Michael, J. ,  PALAZZO, Mark ,  POWELL, Eric, G. ,  VOGT, Stephen, W.

IPC: H04J00/00

CPC classification number: H04N7/22 ,  H04N7/102 ,  H05K1/14

Abstract: A node for a communications system includes a first circuit board including a first amplifier for amplifying a first signal and a second circuit board removably mounted to the first circuit board as a plug-in module. The second circuit board including at least one of an optical transmitter and an optical receiver.

Abstract translation: 用于通信系统的节点包括：第一电路板，包括用于放大第一信号的第一放大器和可移除地安装到第一电路板的第二电路板作为插件模块。 第二电路板包括光发射器和光接收器中的至少一个。

公开(公告)号：WO1997018654A1

公开(公告)日：1997-05-22

申请号：PCT/US1996018230

申请日：1996-11-14

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  PINDER, Howard, George ,  PALGON, Michael, Steven

IPC: H04L09/00

CPC classification number: H04N7/1675 ,  H04L9/0618 ,  H04L2209/601

Abstract: A method of encrypting clear payload data to form encrypted payload data uses a block cipher, the block cipher being characterized by a predetermined block length. The method includes a step of parsing (7) and first and second steps of encrypting (8). The step of parsing parses (7) the clear payload data into at least one full clear block. Each full clear block is characterized by the predetermined block length. The residual block is characterized by a residual block length, the residual block length being less than the predetermined block length. The step of parsing further parses (7) the last full clear block into a first part and a second part, the second part being characterized by a length equaling a difference between the predetermined block length and the residual block length.

Abstract translation: 加密清除有效载荷数据以形成加密的有效载荷数据的方法使用块密码，块密码以预定的块长度表征。 该方法包括解析（7）和加密的第一和第二步骤（8）的步骤。 解析步骤（7）将清除的有效载荷数据分解成至少一个完整的清除块。 每个完全清晰的块的特征在于预定的块长度。 剩余块的特征在于剩余块长度，剩余块长度小于预定块长度。 解析的步骤进一步将最后一个完整清除块解析（7）到第一部分和第二部分中，第二部分的特征在于等于预定块长度和剩余块长度之间的差的长度。

公开(公告)号：WO1997002673A1

公开(公告)日：1997-01-23

申请号：PCT/US1996011011

申请日：1996-06-28

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  BORAZJANI, Ramin ,  MILLER, Kevin, Lee

IPC: H04J01/04

CPC classification number: H04H20/46 ,  H04H20/78 ,  H04H60/94 ,  H04H60/97 ,  H04J4/005 ,  H04L12/2801 ,  H04L27/2627 ,  H04N7/10

Abstract: A multi-channel modulator for the transmission of telephony signals within a broadband communication system. A filter accepts digitized data streams of telephony information in the form of I and Q signal components, and filters them to produce filtered I and Q signal components. An interpolation module generates processed I and Q signal components by upsampling filtered I and Q signal components. In turn, these processed I and Q signal components are passed to a set of channel modulators, each channel modulator capable of generating a modulated signal within a discrete increment channel of a subband of the reverse band. Each channel modulator accepts a pair of processed I and Q signal components and, in response, modulates a selected carrier signal with one of the telephony signals to produce a complex modulated signal. An adder module responds to the complex modulated signals by summing the real signal components to produce a real resultant signal, and to sum the imaginary resultant components to produce an imaginary resultant signal. A digital-to-analog converter (DAC) module converts the real resultant signal and the imaginary resultant signal, which are represented by digital data streams, to analog signals. A transmitter, responsive to the analog signals, transmits the modulated signals within a frequency band of the broadband communications network.

Abstract translation: 一种用于在宽带通信系统内传输电话信号的多信道调制器。 滤波器以I和Q信号分量的形式接收电话信息的数字化数据流，并对它们进行滤波以产生滤波的I和Q信号分量。 内插模块通过对经滤波的I和Q信号分量进行上采样来产生经处理的I和Q信号分量。 反过来，这些经处理的I和Q信号分量被传递到一组信道调制器，每个信道调制器能够在反向频带的子带的离散增量信道内生成调制信号。 每个信道调制器接受一对经处理的I和Q信号分量，并且作为响应，用电话信号中的一个调制所选择的载波信号以产生复调制信号。 加法器模块通过对实数信号分量进行求和以产生真实的合成信号来对复调制信号进行响应，并且将虚拟合成分量相加以产生虚拟合成信号。 数模转换器（DAC）模块将由数字数据流表示的实际结果信号和虚拟结果信号转换为模拟信号。 响应于模拟信号的发射机在宽带通信网络的频带内发送调制信号。

公开(公告)号：WO1997001236A1

公开(公告)日：1997-01-09

申请号：PCT/US1996010487

申请日：1996-06-24

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  LOVELESS, Robert, C.

IPC: H04M11/00

CPC classification number: H04N7/17309 ,  H04N21/6168

Abstract: A communications system includes first and second fiber optic links, each including at least one fiber optic cable, and a coaxial distribution plant including coaxial distribution lines (56, 58, 60 and 66) and a plurality of amplifiers (62). A first fiber optic node (57) couples the the first fiber optic link to the coaxial distribution plant and a second fiber optic node (52) located proximate to one of the amplifiers of the coaxial distribution plant couples the second fiber optic link to the coaxial distribution plant.

Abstract translation: 通信系统包括第一和第二光纤链路，每个光纤链路包括至少一个光纤电缆，以及包括同轴分配线路（56,58,60和66）以及多个放大器（62）的同轴分配设备。 第一光纤节点（57）将第一光纤链路耦合到同轴分配设备，并且位于同轴分布设备的放大器之一附近的第二光纤节点（52）将第二光纤链路耦合到同轴分布设备 配电厂。

公开(公告)号：WO1996041452A1

公开(公告)日：1996-12-19

申请号：PCT/US1996009210

申请日：1996-06-06

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  DUBBERLY, Gregory, Thomas ,  BOHANNON, Thomas, Autrey

IPC: H04L12/28

CPC classification number: H04Q11/0478 ,  H04H20/78 ,  H04H20/79 ,  H04H20/81 ,  H04H60/94 ,  H04H60/97 ,  H04J1/12 ,  H04J3/1623 ,  H04J2203/0041 ,  H04J2203/0089 ,  H04L12/2801 ,  H04L12/413 ,  H04M7/006 ,  H04N7/10 ,  H04N7/14 ,  H04N7/17309 ,  H04N2007/1739 ,  H04Q2213/13332

Abstract: A broadband communications system for coupling telephony or other digital networks to a CATV network. The system transmits a multiplex of telephony signals in the forward band of the CATV network. The forward telephony channels are demodulated and demultiplexed by a plurality of subscriber terminals into the individual telephony signals directed to an addressed subscriber. Signals returning from subscribers are digitized into standard telephony signals onto the reverse band of the CATV network, and demodulated and multiplexed into a standard telephony signal that is interfaced to the telephony network. A multiplicity of subscribers are initially assigned to a selected reverse band channel. If more than one subscriber contends for use of the reverse channel by transmitting in the channel, signals from the contending subscribers interfere and prevent any subscriber's identity from being decoded and acknowledged. The contending subscribers wait for a random wait time and re-attempt to transmit. Upon transmission re-attempt, one of the subscribers (typically the one with the shortest wait time) will successfully gain access to the reverse channel, and the other subscribers are assigned to a different reverse channel.

Abstract translation: 用于将电话或其他数字网络耦合到CATV网络的宽带通信系统。 该系统在CATV网络的前向频带中发送电话信号的复用。 前向电话信道被多个用户终端解调和解复用为针对寻址用户的各个电话信号。 从订户返回的信号被数字化为标准电话信号到CATV网络的反向频带上，并被解调和多路复用成与电话网络接口的标准电话信号。 最初将多个用户分配给所选择的反向频带信道。 如果多个用户通过在信道中发送来争用使用反向信道，则来自竞争订户的信号干扰并阻止任何订户的身份被解码和确认。 竞争用户等待随机等待时间并重新尝试传输。 在传输重新尝试时，其中一个用户（通常是具有最短等待时间的用户）将成功地访问反向信道，并且其他用户被分配到不同的反向信道。

公开(公告)号：WO1996031982A1

公开(公告)日：1996-10-10

申请号：PCT/US1996004165

申请日：1996-04-02

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  PINDER, Howard, G. ,  WASILEWSKI, Anthony, J.

IPC: H04N07/167

CPC classification number: H04L63/0428 ,  H04L63/062 ,  H04L63/0823 ,  H04N5/4401 ,  H04N7/1675 ,  H04N21/2221 ,  H04N21/2351 ,  H04N21/25875 ,  H04N21/26613 ,  H04N21/2665 ,  H04N21/4181 ,  H04N21/4182 ,  H04N21/4353 ,  H04N21/4623 ,  H04N21/63345 ,  H04N21/6543 ,  H04N21/6582

Abstract: An information terminal includes a secure microprocessor (204) and secure non-volatile memory (206). Data such as authorization data and other service provider related data for subscription information services are certified as to source, and portions thereof decrypted as necessary by the secure processor according to a service provider key and loaded into secure non-volatile memory. The secure data is loaded by multiple service providers or by subscribers themselves, each service provider being adaptably allocated a number of non-volatile storage cells of predetermined length. In this manner, scarce non-volatile memory resources may be conserved and yet made accessible to multiple information service providers upon demand or as requirements change. Once certified by a trusted entity, several information service providers may individually change or modify the reconfigurable memory of the present invention by remote, addressed communication without the intervention of head-end apparatus.

Abstract translation: 信息终端包括安全微处理器（204）和安全非易失性存储器（206）。 诸如授权数据和用于订阅信息服务的其他服务提供商相关数据的数据被认证为根据服务提供商密钥的来源和其部分被安全处理器根据需要解密并被加载到安全的非易失性存储器中。 安全数据由多个服务提供商或订户本身加载，每个服务提供商被适配地分配许多具有预定长度的非易失性存储单元。 以这种方式，可以保存稀少的非易失性存储器资源，并且可以根据需要或随着需求的变化而使多个信息服务提供者可以访问。 一旦信任实体认证，几个信息服务提供商可以通过远程的寻址通信单独地改变或修改本发明的可重构存储器，而无需头端设备的介入。

公开(公告)号：WO1996030962A1

公开(公告)日：1996-10-03

申请号：PCT/US1996003309

申请日：1996-03-20

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  VICKERS, Edward, H. ,  LEWIS, Philip, C.

IPC: H01Q03/00

CPC classification number: G01S3/42 ,  H01Q3/08

Abstract: An antenna tracking controller (102) for generating signals used to position an antenna for tracking a moving signal source includes a first Kalman filter (Figure 9) for estimating parameters of a first model of the motion of the moving signal source a second Kalman filter (Figure 9) for estimating parameters of a second model of the motion of the moving signal source. The second Kalman filter uses the parameters estimated by the first Kalman filter as initial values. A model quality charge/discharge is also provided to monitor the status of the data base.

Abstract translation: 用于产生用于定位用于跟踪移动信号源的天线的信号的天线跟踪控制器（102）包括用于估计移动信号源的运动的第一模型的参数的第一卡尔曼滤波器（图9），第二卡尔曼滤波器 图9）用于估计移动信号源的运动的第二模型的参数。 第二卡尔曼滤波器使用由第一卡尔曼滤波器估计的参数作为初始值。 还提供了模型质量充放电来监控数据库的状态。

公开(公告)号：WO1996029782A1

公开(公告)日：1996-09-26

申请号：PCT/US1996003454

申请日：1996-03-13

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC.

IPC: H03H07/48

CPC classification number: H01R24/52 ,  H01R9/0509 ,  H01R2107/00 ,  H03H7/48

Abstract: A method and system for distributing multimedia signals to a subscriber (14) from a headend unit (12). The multimedia signals are transmitted on a network media as an RF signal. The RF signal is fed to an input terminal (50) of a tap (20) which has an RF circuit (58) that splits the RF signal and distributes to an output terminal (52). The RF circuit (58) splits the RF signals, and feeds the split signal to a plurality of connectors (30-36) on the tap's front panel (70). The RF signals on the output terminal (52) are fed downstream to a plurality of subscribers (14). A switch (42) is placed in the tap such that when the RF circuit (58) is removed for repair, maintenance or service, an electrical connection is maintained between the input (50) and output (52) terminal to prevent a disconnection of service downstream.

Abstract translation: 一种用于从头端单元（12）向用户（14）分配多媒体信号的方法和系统。 多媒体信号以RF信号的形式在网络媒体上传输。 RF信号被施加到包括RF电路（58）的分支（20）的输入端子（50），所述RF电路分割RF信号并将它们路由到输出端子（52）。 RF电路58分割RF信号并将分开的信号发送到分支的前面板70上的一系列连接器30-36。 输出终端（52）上的RF信号向下传输给多个用户（14）。 开关（42）被放置在分支中，使得当HF电路（58）被移除以进行修理，维护或维修时，在输入端子（50）和输出端子 （52）以防止下游停机。