Apparatus and method for transforming cable channel
    1.
    发明授权
    Apparatus and method for transforming cable channel 有权
    用于转换电缆通道的装置和方法

    公开(公告)号:US08401040B2

    公开(公告)日:2013-03-19

    申请号:US11299214

    申请日:2005-12-08

    IPC分类号: H04H20/28

    CPC分类号: H04L12/2801 H04L12/2854

    摘要: Provided is apparatus and method for transforming cable channel. The apparatus includes a data mixing unit for receiving and mixing a band data and a first broadband data, to thereby generate a second broadband data of a broadband cable channel, and a channel adapting unit for dividing a band data from the second broadband data received through the broadband cable channel, bypassing the second broadband data to a first subscriber apparatus and transmitting the band data to a second subscriber apparatus.

    摘要翻译: 提供了用于转换有线电视频道的装置和方法。 该装置包括:数据混合单元,用于接收和混合频带数据和第一宽带数据,从而产生宽带有线频道的第二宽带数据;以及信道适配单元,用于将频带数据与从第 宽带电缆信道,绕过第二宽带数据到第一用户设备,并将频带数据发送到第二用户设备。

    Method for securing DOCSIS cable modem against physical security attacks
    3.
    发明授权
    Method for securing DOCSIS cable modem against physical security attacks 失效
    保护DOCSIS电缆调制解调器防止物理安全攻击的方法

    公开(公告)号:US07739518B2

    公开(公告)日:2010-06-15

    申请号:US11483999

    申请日:2006-07-10

    IPC分类号: G06F11/30 G06F12/14

    CPC分类号: G06F21/575 H04L63/1441

    摘要: Provided is a method for securing cable modem (CM) following a Data Over Cable Service Interface Specification (DOCSIS) against physical security attacks. The method includes the steps of: a) classifying information to be stored in the DOCSIS CM based on a requirement degree of confidentiality and anti-alteration; b) storing the information in a non-volatile memory of the DOCSIS CM when the information is absolute confidential information, but processing a mechanism for deleting the information stored in the non-volatile memory in case that attacks by a hacker is sensed; c) storing the information in the non-volatile memory of the DOCSIS CM when the information is middle-level security information; and d) storing the information in a write-once (WO) memory of the DOCSIS CM when the information is absolute anti-alteration information.

    摘要翻译: 提供了一种用于保护电缆调制解调器(CM)的方法,该电缆调制解调器(CM)遵循电缆数据服务接口规范(DOCSIS),防止物理安全攻击。 该方法包括以下步骤:a)根据需要的机密性和抗变形度对DOCSIS CM中存储的信息进行分类; b)当信息是绝对机密信息时,将信息存储在DOCSIS CM的非易失性存储器中,但是在感测到黑客的攻击的情况下处理用于删除存储在非易失性存储器中的信息的机制; c)当信息是中级安全信息时,将信息存储在DOCSIS CM的非易失性存储器中; 以及d)当所述信息是绝对抗变换信息时,将信息存储在DOCSIS CM的一次写入(WO)存储器中。

    Method for securing DOCSIS cable modem against physical security attacks
    4.
    发明申请
    Method for securing DOCSIS cable modem against physical security attacks 失效
    保护DOCSIS电缆调制解调器防止物理安全攻击的方法

    公开(公告)号:US20070039061A1

    公开(公告)日:2007-02-15

    申请号:US11483999

    申请日:2006-07-10

    IPC分类号: G06F11/00

    CPC分类号: G06F21/575 H04L63/1441

    摘要: Provided is a method for securing cable modem (CM) following a Data Over Cable Service Interface Specification (DOCSIS) against physical security attacks. The method includes the steps of: a) classifying information to be stored in the DOCSIS CM based on a requirement degree of confidentiality and anti-alteration; b) storing the information in a non-volatile memory of the DOCSIS CM when the information is absolute confidential information, but processing a mechanism for deleting the information stored in the non-volatile memory in case that attacks by a hacker is sensed; c) storing the information in the non-volatile memory of the DOCSIS CM when the information is middle-level security information; and d) storing the information in a write-once (WO) memory of the DOCSIS CM when the information is absolute anti-alteration information.

    摘要翻译: 提供了一种用于保护电缆调制解调器(CM)的方法,该电缆调制解调器(CM)遵循电缆数据服务接口规范(DOCSIS),防止物理安全攻击。 该方法包括以下步骤:a)根据需要的机密性和抗变形度对DOCSIS CM中存储的信息进行分类; b)当信息是绝对机密信息时,将信息存储在DOCSIS CM的非易失性存储器中,但是在感测到黑客的攻击的情况下处理用于删除存储在非易失性存储器中的信息的机制; c)当信息是中级安全信息时,将信息存储在DOCSIS CM的非易失性存储器中; 以及d)当所述信息是绝对抗变换信息时,将信息存储在DOCSIS CM的一次写入(WO)存储器中。

    Apparatus and method for scrambling high-rate data
    5.
    发明授权
    Apparatus and method for scrambling high-rate data 有权
    用于扰乱高速率数据的装置和方法

    公开(公告)号:US07480383B2

    公开(公告)日:2009-01-20

    申请号:US10950328

    申请日:2004-09-23

    IPC分类号: H04L9/00

    摘要: The apparatus and method for scrambling high-rate data is disclosed. The apparatus includes a first storing unit for storing a transport stream (TS) inputted from an external device; a common key (CK) generating unit for generating a CK by receiving a control word (CW) from an external conditional access system (CAS); a key scheduling unit for generating predetermined number of keys (KK)s by receiving the CK from the CK generating unit; a plurality of enciphering units for enciphering the TS transmitted from the first storing unit based on the predetermined number of KKs and the CK; a second storing unit for storing the TS enciphered by the enciphering units and outputting the enciphered TS; and a controlling unit for controlling the multiple enciphering units.

    摘要翻译: 公开了用于扰乱高速率数据的装置和方法。 该装置包括:第一存储单元,用于存储从外部设备输入的传输流(TS); 公共密钥(CK)生成单元,用于通过从外部条件访问系统(CAS)接收控制字(CW)来生成CK; 密钥调度单元,用于通过从CK生成单元接收CK来生成预定数量的密钥(KK); 多个加密单元,用于基于预定数量的KK和CK来加密从第一存储单元发送的TS; 第二存储单元,用于存储由加密单元加密的TS并输出加密的TS; 以及用于控制多个加密单元的控制单元。

    Apparatus and method for scrambling high-rate data
    6.
    发明申请
    Apparatus and method for scrambling high-rate data 有权
    用于扰乱高速率数据的装置和方法

    公开(公告)号:US20050135617A1

    公开(公告)日:2005-06-23

    申请号:US10950328

    申请日:2004-09-23

    摘要: The apparatus and method for scrambling high-rate data is disclosed. The apparatus includes a first storing unit for storing a transport stream (TS) inputted from an external device; a common key (CK) generating unit for generating a CK by receiving a control word (CW) from an external conditional access system (CAS); a key scheduling unit for generating predetermined number of keys (KK)s by receiving the CK from the CK generating unit; a plurality of enciphering units for enciphering the TS transmitted from the first storing unit based on the predetermined number of KKs and the CK; a second storing unit for storing the TS enciphered by the enciphering units and outputting the enciphered TS; and a controlling unit for controlling the multiple enciphering units.

    摘要翻译: 公开了用于扰乱高速率数据的装置和方法。 该装置包括:第一存储单元,用于存储从外部设备输入的传输流(TS); 公共密钥(CK)生成单元,用于通过从外部条件访问系统(CAS)接收控制字(CW)来生成CK; 密钥调度单元,用于通过从CK生成单元接收CK来生成预定数量的密钥(KK); 多个加密单元,用于基于预定数量的KK和CK来加密从第一存储单元发送的TS; 第二存储单元,用于存储由加密单元加密的TS并输出加密的TS; 以及用于控制多个加密单元的控制单元。

    Restricted reception device for digital cable broadcasting system, and reception system and method using the same
    7.
    发明授权
    Restricted reception device for digital cable broadcasting system, and reception system and method using the same 有权
    用于数字有线广播系统的限制接收装置,以及使用其的接收系统及方法

    公开(公告)号:US07383562B2

    公开(公告)日:2008-06-03

    申请号:US10439818

    申请日:2003-05-16

    IPC分类号: H04N7/20

    摘要: A restricted reception device enabling a subscriber receiver to selectively receive broadcasting data transferred via a digital cable broadcasting network, includes: a demultiplexer for receiving broadcasting data and an ECM including a CW from the subscriber receiver, and demultiplexing them, the broadcasting data and the ECM being transferred through an in-band channel; an out-of-band channel signal processor for receiving an EMM from the subscriber receiver, and processing the EMM, the EMM being transferred through an out-of-band channel; a restricted reception processor for descrambling the scrambled broadcasting data using the ECM and the EMM received from the out-of-band channel signal processor; and a remultiplexer for multiplexing the descrambled broadcasting data received from the restricted reception processor, and sending the multiplexed broadcasting data to the subscriber receiver.

    摘要翻译: 允许用户接收机选择性地接收经由数字有线广播网络传送的广播数据的受限接收装置包括:解复用器,用于从用户接收机接收广播数据和包括CW的ECM,并对它们进行解复用,广播数据和ECM 通过带内频道传输; 用于从所述用户接收机接收EMM的带外信道信号处理器,以及处理所述EMM,所述EMM通过带外信道传送; 限制接收处理器,用于使用ECM和从带外信道信号处理器接收的EMM来解扰加扰的广播数据; 以及多路复用器,用于复用从受限接收处理器接收的解扰频广播数据,并将多路复用广播数据发送给用户接收机。

    Apparatus for receiving cable TV broadcasting program, and multiplexer and de-multiplexer thereof
    8.
    发明授权
    Apparatus for receiving cable TV broadcasting program, and multiplexer and de-multiplexer thereof 有权
    用于接收有线电视广播节目的装置,以及其多路复用器和解复用器

    公开(公告)号:US07848365B2

    公开(公告)日:2010-12-07

    申请号:US11452486

    申请日:2006-06-13

    IPC分类号: H04J3/04

    摘要: Provided are an apparatus for receiving cable broadcasting programs and a multiplexer and a de-multiplexer thereof for reducing data amount processed in a Cable CARD and for correcting synchronization of descrambled data stream. The apparatus includes: a multiplexing unit for filtering a broadcasting stream to select only programs selected by a viewer and multiplexing the selected programs; a conditional-access processing unit for receiving the multiplexed streams and processing the multiplexed streams for conditional access (descrambling); and a de-multiplexing unit for de-multiplexing the multi stream from the conditional-access processing unit and correcting a program clock reference (PCR).

    摘要翻译: 提供了一种用于接收有线广播节目的装置和用于减少在有线电视卡中处理的数据量并用于校正解扰数据流的同步的多路复用器和解复用器。 该装置包括:多路复用单元,用于过滤广播流以仅选择由观看者选择的节目并且复用所选择的节目; 条件访问处理单元,用于接收多路复用的流并处理用于条件访问(解扰)的多路复用流; 以及解复用单元,用于从条件访问处理单元解复用多流,并校正程序时钟参考(PCR)。

    Multiplexing and demultiplexing apparatus for delivering MPEG-2 TS packet error signal through cablecard interface and multiplexing and demultiplexing method using the same
    9.
    发明授权
    Multiplexing and demultiplexing apparatus for delivering MPEG-2 TS packet error signal through cablecard interface and multiplexing and demultiplexing method using the same 有权
    用于通过有线卡接口传送MPEG-2TS数据包错误信号的复用和解复用装置,以及使用其的复用和解复用方法

    公开(公告)号:US07796599B2

    公开(公告)日:2010-09-14

    申请号:US11525766

    申请日:2006-09-22

    IPC分类号: H04L12/56

    摘要: Provided are a multiplexing and demultiplexing apparatus and method for delivering an MPEG-2 TS packet error signal through a CableCARD interface. In the multiplexing apparatus, a TS packet reception unit receives TS packets, and a pre-header generation unit generates pre-headers corresponding to the received TS packets. A pre-header insertion unit inserts the pre-headers in front of the received TS packets to generate cable MPEG packets (CMPs), and an output FIFO unit stores the CMPs. A FIFO control unit transfers the CMPs without collision with CMPS of different channels, and an output signal generation unit generates output signals from the CMPs of the different channels.

    摘要翻译: 提供了一种用于通过CableCARD接口传送MPEG-2TS分组错误信号的复用和解复用装置和方法。 在多路复用装置中,TS分组接收部接收TS分组,前标题生成部生成与所接收的TS分组对应的预标题。 预标题插入单元将预标题插入在接收的TS分组之前,以产生有线MPEG分组(CMP),并且输出FIFO单元存储CMP。 FIFO控制单元传送CMP而不与不同通道的CMPS发生冲突,输出信号生成单元从不同通道的CMP产生输出信号。

    Reed-Solomon decoding apparatus and method having high error correction capability
    10.
    发明授权
    Reed-Solomon decoding apparatus and method having high error correction capability 失效
    Reed-Solomon解码装置和方法具有高纠错能力

    公开(公告)号:US07757156B2

    公开(公告)日:2010-07-13

    申请号:US11501496

    申请日:2006-08-08

    IPC分类号: H03M13/00

    摘要: A Reed-Solomon (RS) decoding apparatus having high error correction capability and a method thereof are provided. The apparatus includes: error location and analysis polynomial generating units for performing a modified Euclid algorithm by receiving syndrome data upon receipt of an enable signal, and suspending input of the syndrome data and outputting error location polynomial data and error analysis polynomial data by executing the modified Euclid algorithm independently upon receipt of a disable signal; a controlling unit for controlling the error location and analysis polynomial generating unit and the input of the syndrome data; and switching units for providing the syndrome data to corresponding error location and analysis polynomial generating unit upon receipt of the enable signal and controlling the input of the syndrome data upon receipt of the disable signal. The number of the switching units is identical to that of the error location and analysis polynomial generating units.

    摘要翻译: 提供了具有高纠错能力的里德 - 所罗门(RS)解码装置及其方法。 该装置包括:错误位置和分析多项式生成单元,用于通过在接收到使能信号时接收到校正子数据来执行修改的欧几里得算法,并且暂停所述校正子数据的输入,并且通过执行所述修改的所述修改的所述多项式数据和错误分析多项式数据, 欧几里德算法在接收到禁用信号时独立; 控制单元,用于控制误差位置和分析多项式生成单元以及所述校正子数据的输入; 以及切换单元,用于在接收到使能信号时将校正子数据提供给相应的错误位置和分析多项式生成单元,并且在接收到禁用信号时控制校正子数据的输入。 切换单元的数量与错误位置和分析多项式生成单元的数量相同。