公开(公告)号：WO1994019881A1

公开(公告)日：1994-09-01

申请号：PCT/US1994001486

申请日：1994-02-16

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  BEYERS, Robert, J., II ,  DURDEN, Gregory, S. ,  IVEY, M., Kent ,  KUBAN, Curt, M.

IPC: H04B17/00

CPC classification number: H04H20/42 ,  G06Q20/102 ,  G06Q30/04 ,  H04H20/78 ,  H04H60/07 ,  H04N1/00098 ,  H04N7/165 ,  H04N21/4786 ,  H04N21/4788 ,  H04N21/812

Abstract: A system and method are provided for selecting groups of one or more cable television subscribers (150) remotely from a billing computer (110) using data fields in either the billing computer database (110) or a system control computer database (120). A selection criteria language may be used for selecting subscribers based on data fields in the system control database (120). Once a group of cable subscribers has been selected, an on-screen message may be remotely created and transmitted to the selected subscriber using cable transmission apparatus. The method provides a way of correlating subscriber information in a comprehensive subscriber database (such as may exist on a billing computer) with other subscriber information in a more limited database stored on a system control computer (120) to allow on-screen messages to be targeted at subscribers selected on the basis of criteria from either database. It also allows message attributes (such as duration of display, colors, and message alerts) to be specified remotely from a billing computer (110) rather than requiring the presence of a human operator at the system control computer (120).

Abstract translation: 提供了一种系统和方法，用于使用计费计算机数据库（110）或系统控制计算机数据库（120）中的数据字段从计费计算机（110）远程地选择一个或多个有线电视订户（150）的组。 选择标准语言可以用于基于系统控制数据库（120）中的数据字段来选择用户。 一旦已经选择了一组有线电视用户，则可以远程创建屏幕上消息并且使用电缆传输装置将其发送到所选择的用户。 该方法提供了将综合订户数据库（诸如可能存在于计费计算机上）上的订户信息与存储在系统控制计算机（120）上的更有限的数据库中的其他用户信息相关联以允许屏幕上消息为 基于来自任一数据库的标准选择的用户。 它还允许从计费计算机（110）远程指定消息属性（诸如显示持续时间，颜色和消息警报），而不需要在系统控制计算机（120）处存在操作人员。

公开(公告)号：WO1994013563A1

公开(公告)日：1994-06-23

申请号：PCT/US1993012118

申请日：1993-12-16

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  SACHTSCHALE, Timothy, G. ,  BARRY, Steven, P.

IPC: B65G11/00

CPC classification number: H05K13/022

Abstract: A method for positioning an electrical component (90) for pick-up by a pick-and-place device (10) which includes removing the electrical component directly from a storage tube (180) through a window (187) formed in the storage tube. The electrical components slide in the storage tube to a desired removal position which is adjacent the window, and are removed through the window using a pick-up tool (30). A modified storage tube (180) formed with the window is also disclosed, along with a connecting hole (155) with which the storage tube is connected to a fixture (150). The fixture includes a pin (154) which fits into the connecting hole (188).

Abstract translation: 一种用于定位用于由拾取和放置装置（10）拾取的电气部件（90）的方法，该拾取和放置装置包括通过形成在存储管中的窗口（187）从存储管（180）直接移除电部件 。 电气部件在存储管中滑动到与窗口相邻的期望的移除位置，并且通过拾取工具（30）从窗口移除。 还公开了一种形成有窗户的改进的存储管（180），连接孔（155）与存储管连接到固定装置（150）。 所述固定装置包括装配到所述连接孔（188）中的销（154）。

公开(公告)号：WO1994013081A1

公开(公告)日：1994-06-09

申请号：PCT/US1993011654

申请日：1993-12-01

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  WASILEWSKI, Anthony, J. ,  GAMMIE, Keith

IPC: H04L09/18

CPC classification number: H04N7/1675 ,  H04L9/0833 ,  H04L2209/601

Abstract: In a data transmission system comprising a plurality N of transmission sites (22, 24, 28) and at least one reception site (30) a set of data at each transmission site is uniquely encrypted by (a) providing each transmission site (22, 24, 28) with a broadcast key (42, 44, 48) unique to that transmission site and a system key (sk) that is the same for all transmission sites, the system key (sk) comprising a plurality S of bits and each of the broadcast keys comprising a unique plurality B of bits, wherein B is less than S; (b) convolving in a predetermined manner at each transmission site (22, 24, 28) the system key and the broadcast key unique (42, 44, 48) to that transmission site to generate a unique data encryption key for that transmission site; (c) encrypting the set of data at each transmission site (22, 24, 28) with the unique data encryption key (42, 44, 48) generated at that site.

Abstract translation: 在包括多个发送站点（22,24,28）和至少一个接收站点（30）的数据传输系统中，每个传输站点的一组数据被唯一地加密，（a）提供每个传输站点， 24，28），其具有该传输站点唯一的广播密钥（42,44,48）和对于所有传输站点相同的系统密钥（sk），系统密钥（sk）包括多个位和每个 广播密钥包括唯一的多个B位，其中B小于S; （b）在每个传输站点（22,24,28）处将系统密钥和广播密钥唯一（42,44,48）以预定方式卷绕到该传输站点，以生成该传输站点的唯一数据加密密钥; （c）用在该站点处生成的唯一数据加密密钥（42,44,48）对每个传输站点（22,24,28）处的数据集进行加密。

公开(公告)号：WO1993026128A1

公开(公告)日：1993-12-23

申请号：PCT/US1993005512

申请日：1993-06-09

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  HARNEY, Michael, P. ,  RUSTAGI, Vibha ,  PARIKH, Himanshu, R. ,  SCHUTTE, Mark, E.

IPC: H04N07/167

CPC classification number: H04K3/825 ,  H04K3/42 ,  H04K2203/14 ,  H04N7/166

Abstract: An off-premises method and apparatus for the interdiction of unauthorized channels of a broadband cable television signal includes common circuitry (100) for adjusting the amplitude and equalization levels of the broadband CATV signals and one or more subscriber modules (130) for generating jamming signals of different frequencies which are used to interdict one or more unauthorized channels. Each subscriber module is associated with a subscriber (160) and is programmable and addressable to adjust the jamming parameters of that subscriber independently of other subscribers. The subscriber module is based on a sequential state machine which loads frequency control words corresponding to the jammed channels from a frequency control memory into each latch on a cyclic basis.

公开(公告)号：WO1993019546A1

公开(公告)日：1993-09-30

申请号：PCT/US1993002239

申请日：1993-03-16

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  MONTREUIL, Leo

IPC: H04L05/12

CPC classification number: H04L25/497

Abstract: A digital audio communication system includes a digital modulation and demodulation scheme which efficiently uses the bandwidth and channel spacing of a cable television system. A 30 channel digital bit stream is demultiplexed into six groups of five channels. Each group of channels thereafter modulates a carrier by a quadrature partial response (QPR) process. The QPR signal, is then transmitted over the cable system to a multiplicity of subscribers, each of which has a QPR demodulator (125). The demodulators are of the decision feedback type having a modified Costas loop carrier recovery circuit (135). The grouping of an odd number (five) of digital audio channels per QPR modulator (75) minimizes error propagation due to the correlative QPR demolulation process. The decision feedback decoding is implemented in simple current nodes where a bilevel output from the decoded data is subtracted from a tertiary level output of a mixer.

公开(公告)号：WO1993019520A1

公开(公告)日：1993-09-30

申请号：PCT/US1993002240

申请日：1993-03-16

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  MONTREUIL, Leo

IPC: H03D03/00

CPC classification number: H04L25/497 ,  H04L5/06 ,  H04L27/2273 ,  H04L2027/0051 ,  H04L2027/0067

Abstract: A digital audio communication system (8) includes a digital modulation and demodulation scheme which efficiently uses the bandwidth and channel spacing of a cable television system. A 30 channel digital bit stream is demultiplexed into six groups of five channels. Each group of channels thereafter modulates a carrier by a quadrature partial response (QPR) process. The QPR signal, an amplitude modulated, double sideband, carrier suppressed (AMDSBSC) signal, is then transmitted over the cable system to a multiplicity of subscribers, each of which has a QPR demodulator (100). The demodulators (100) are of the decision feedback type having a modified Costas loop carrier recovery circuit. The modified Costas loop provides an error voltage based upon the difference of the received data states versus the nominal data states and the quadrant the data occupies.

公开(公告)号：WO1993011641A1

公开(公告)日：1993-06-10

申请号：PCT/US1992010111

申请日：1992-11-30

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  BANKER, Robert, O. ,  BACON, Kinney, C. ,  BAGLEY, Julius, B.

IPC: H04N07/16

CPC classification number: H04N7/081 ,  H04N5/445 ,  H04N5/50 ,  H04N7/0884 ,  H04N21/4104 ,  H04N21/4312 ,  H04N21/472 ,  H04N21/482 ,  H04N21/485 ,  H04N21/488 ,  H04N21/8133

Abstract: A subscriber terminal includes a receiver for receiving a television signal including video, audio and data information. A channel of the television signal may be selected for display on the television. A memory stores channel identification information such as channel identifiers. The channel identifiers include at least one display character. A processor establishes a relationship between channel identification information and channel numbers associated with channels of the television signal. An on-screendisplay control circuit controls the display of character information on the television and has the capability of overlaying the channel number and the channel identification information on the video portion of a selected channel displayed on the television for a predetermined period of time. Program identification information such as program titles may also be displayed. Alternatively or additionally, the channel identification information may be displayed on a display such as an LED display of a subscriber terminal.

公开(公告)号：WO1993010642A1

公开(公告)日：1993-05-27

申请号：PCT/US1992010192

申请日：1992-11-19

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  COOK, Alex, M., Jr. ,  ROVIRA, Luis, A. ,  WALL, William, E., Jr. ,  JOHNSON, Lee, R. ,  MONTREUIL, Leo ,  TING, Jeffrey, C. ,  KUBAN, Curt, M. ,  MCGINTY, Emory, L. ,  LEVITAN, David, E. ,  SHYU, Ruengung, Archie

IPC: H04Q01/00

CPC classification number: H04B1/202 ,  H03J1/0025 ,  H03J2200/24 ,  H04N2005/4423

Abstract: A remote control system including a hand held remote control unit (200) with an alphanumeric information display (209), for controlling and communicating with a first controlled device (100), such as a digital music tuner connected to a community antenna television (CATV) cable, and for controlling a selected one of a plurality of second controlled devices (300), such as CATV set-top-units, VCRs, or televison sets. A first, high speed, error free display information communications protocol is utilized for transmitting program content or other information from the first controlled device (100) to the remote control unit (200) for display. A second or control communications protocol is utilized by the remote control unit (200) for controlling the first controlled device (100) and a selected one of the second controlled devices (300). The first controlled device (100) utilizes a first clock signal embedded in digital music signals provided via the cable to derive clocking signals for implementing the display information communications protocol, resulting in an efficient, low cost electronic design.

Abstract translation: 一种遥控系统，包括具有字母数字信息显示器（209）的手持遥控单元（200），用于控制和与第一受控设备（100）通信，诸如连接到社区天线电视机（CATV）的数字音乐调谐器 ）电缆，并且用于控制多个第二受控设备（300）中的所选择的一个，例如CATV机顶盒，VCR或电视机组。 第一，高速，无错误的显示信息通信协议用于将节目内容或其他信息从第一受控设备（100）发送到遥控单元（200）以进行显示。 遥控单元（200）利用第二或控制通信协议来控制第一受控设备（100）和所选择的第二受控设备（300）中的一个。 第一受控设备（100）利用嵌入在经由电缆提供的数字音乐信号中的第一时钟信号来导出用于实现显示信息通信协议的时钟信号，从而产生有效的低成本电子设计。

公开(公告)号：WO1993010638A1

公开(公告)日：1993-05-27

申请号：PCT/US1992009571

申请日：1992-11-06

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  ISRAELSEN, Paul, Dee ,  LUCAS, Keith

IPC: H04N07/167

CPC classification number: G06T9/008 ,  H04N7/20 ,  H04N19/94

Abstract: A vector quantization method employs mirrored input vectors to increase the reproduction quality of transmitted vector quantized data. A codevector (131) is selected from a vector quantization codebook for each possible orientation of an input vector. The codevector having the smallest distortion (142) relative to the input vector is selected for transmission (148). An identification code identifying the selected orientation is also transmitted (148).

公开(公告)号：WO1993010632A1

公开(公告)日：1993-05-27

申请号：PCT/US1992009622

申请日：1992-11-06

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  ISRAELSEN, Paul, D.

IPC: H04N07/12

CPC classification number: H03M7/3082 ,  H04N7/10 ,  H04N7/20 ,  H04N19/94

Abstract: A variable rate vector quantization apparatus (22) and method employs a tree structured codebook. Code vectors are selected from different levels of the codebook according to the value of a threshold. The value of the treshold is periodically adjusted according to the fullness of a buffer that stores vector quantized data to be transmitted. According to the invention, vector quantized data for redundant, or similar vectors is not transmitted. Rather, a "copy last vector" instruction is transmitted for these vectors to achieve further data compression. A method of mean removal from vectors to be vector quantized is also disclosed.

Abstract translation: 可变速率矢量量化装置（22）和方法采用树结构码本。 根据阈值的值，从码本的不同级别选择码矢量。 根据存储要发送的矢量量化数据的缓冲器的丰满度周期性地调整阈值。 根据本发明，用于冗余或类似向量的矢量量化数据不被发送。 相反，为这些向量发送“复制最后向量”指令以实现进一步的数据压缩。 还公开了从载体量化的载体中平均去除的方法。