Timing lock detection apparatus and method for digital broadcasting receiver
    31.
    发明申请
    Timing lock detection apparatus and method for digital broadcasting receiver 有权
    数字广播接收机定时锁定检测装置及方法

    公开(公告)号:US20070133667A1

    公开(公告)日:2007-06-14

    申请号:US11635721

    申请日:2006-12-07

    IPC分类号: H04B3/46 G01R29/26

    摘要: A timing lock detection apparatus and method for digital broadcasting receiver are provided. The apparatus includes: a discrete value generator for cyclically selecting a discrete signal value from a continuous timing error signal; a differential calculator for obtaining a difference between the currently selected timing error signal value and a previously selected timing error signal that is a timing jitter signal; a sign variation detector for detecting variation in a sign of the timing jitter signal; a lock control signal generator for discriminating a period based on the detected sign changing time, and controlling a lock step of the loop filter according to a convergence mode of the timing jitter signal at each period; and a lock detection signal generator for generating a lock signal or an unlock signal according to whether the timing jitter signal reaches a steady state and using the current lock step signal.

    摘要翻译: 提供了一种用于数字广播接收机的定时锁定检测装置和方法。 该装置包括:离散值发生器,用于从连续定时误差信号周期性地选择离散信号值; 用于获得当前选择的定时误差信号值与作为定时抖动信号的先前选择的定时误差信号之间的差的差分计算器; 用于检测定时抖动信号的符号变化的符号变化检测器; 锁定控制信号发生器,用于基于检测到的符号变化时间来识别周期,并且根据每个周期的定时抖动信号的收敛模式来控制环路滤波器的锁定步骤; 以及锁定检测信号发生器,用于根据定时抖动信号是否达到稳定状态并使用当前锁定步骤信号产生锁定信号或解锁信号。

    Apparatus and method for multimedia data transmission and reception in cable network using broadband and physical layer frame structure
    32.
    发明申请
    Apparatus and method for multimedia data transmission and reception in cable network using broadband and physical layer frame structure 有权
    使用宽带和物理层帧结构在有线网络中进行多媒体数据传输和接收的装置和方法

    公开(公告)号:US20070058680A1

    公开(公告)日:2007-03-15

    申请号:US11493418

    申请日:2006-07-26

    IPC分类号: H04J1/00

    摘要: Provided are an apparatus and a method for multimedia data transmission in a cable network using a broadband and physical layer frame structure. The apparatus includes an external network matching module for transmitting data inputted/outputted from/to an external network to a Data Over Cable Service Interface Specification (DOCSIS) Media Access Control (MAC) layer, a DOCSIS MAC processor for transmitting the data from the external network matching module to a corresponding destination, a first downstream physical layer processor for handling an existing standard transmission in the data from the DOCSIS MAC processor, a second downstream physical layer processor for dealing with a new broadband transmission in the data from the DOCSIS MAC processor, and an upstream physical layer processor for providing received data to the DOCSIS MAC processor.

    摘要翻译: 提供了一种使用宽带和物理层帧结构在有线网络中进行多媒体数据传输的装置和方法。 该装置包括外部网络匹配模块,用于将从外部网络输入/输出的数据发送到数据有线服务接口规范(DOCSIS)媒体访问控制(MAC)层,用于从外部传送数据的DOCSIS MAC处理器 网络匹配模块到相应的目的地,用于处理来自DOCSIS MAC处理器的数据中的现有标准传输的第一下游物理层处理器,用于处理来自DOCSIS MAC处理器的数据中的新的宽带传输的第二下游物理层处理器 以及用于向DOCSIS MAC处理器提供接收的数据的上游物理层处理器。

    Method for processing updated application data in headend or terminal of digital data broadcasting system
    33.
    发明申请
    Method for processing updated application data in headend or terminal of digital data broadcasting system 有权
    用于处理数字数据广播系统的头端或终端中更新的应用数据的方法

    公开(公告)号:US20050108701A1

    公开(公告)日:2005-05-19

    申请号:US10827848

    申请日:2004-04-19

    IPC分类号: H04N7/08 G06F9/44 G06F9/445

    CPC分类号: G06F8/65

    摘要: Provided is a method for processing updated data of an application in a headend or a subscriber's terminal of a digital data broadcasting system. The method of the present research forms updated object modules and non-updated object modules among the objects of the application data, transmits them to a subscriber's terminal, abstracts the updated objects in the subscriber's terminal among the objects transmitted from the headend, and outputs them onto a screen, when the objects of the application data are updated in the headend. The updated data processing method includes the steps of: a) confirming that the application data are updated upon an application content update request of a subscriber terminal or application file update of a contents provider; b) generating signaling information of the updated application data and transmitting the signaling information; c) separating updated objects from non-updated objects among objects constituting the application, and updating a file system structure and contents of the application; and d) forming modules including the updated objects and modules including the non-updated objects, updating version information of the modules including the updated objects.

    摘要翻译: 提供一种用于处理数字数据广播系统的头端或用户终端中的应用的更新数据的方法。 本研究的方法在应用数据的对象之间形成更新的对象模块和非更新的对象模块,将它们发送到订户的终端,从用户终端中发送的对象中抽取更新的对象,并将其输出 当应用程序数据的对象在头端更新时,到屏幕上。 更新后的数据处理方法包括以下步骤:a)确认在用户终端的应用内容更新请求或内容提供者的应用文件更新时更新应用数据; b)产生更新的应用数据的信令信息并发送信令信息; c)将构成应用的对象中的更新对象与未更新对象分离,更新应用的文件系统结构和内容; 以及d)形成包括更新对象和模块的模块,包括非更新对象,更新包括更新对象的模块的版本信息。

    Apparatus and method for stable DEF using selective FBF
    34.
    发明授权
    Apparatus and method for stable DEF using selective FBF 失效
    使用选择性FBF稳定DEF的装置和方法

    公开(公告)号:US07944964B2

    公开(公告)日:2011-05-17

    申请号:US11634495

    申请日:2006-12-06

    IPC分类号: H03H7/30

    摘要: A decision feedback equalizing apparatus selectively using a feedback filter and a method thereof are provided. The apparatus includes: an equalizing unit including a feed forward filter (FFF) for correcting a distorted transmission channel by receiving a match-filtered signal and a feedback filter (FBF) for reducing inter symbol interference ISI of the corrected transmission channel for driving only the FFF in a blind mode and driving the FFF and the FBF in a decision directed mode; a diverge/converge determining unit for determining whether the decision feedback equalizing apparatus is diverged or converged using a unit square error obtained through a least unit square algorithm; and a filter controlling unit for controlling the equalizing unit in a blind mode if the decision feedback equalizing apparatus is determined as divergence, and for controlling the equalizing unit in a decision directed mode if the decision feedback equalizing apparatus is determined as convergence.

    摘要翻译: 提供了选择性地使用反馈滤波器的判定反馈均衡装置及其方法。 该装置包括:均衡单元,包括用于通过接收匹配滤波信号来校正失真传输信道的前馈滤波器(FFF)和用于减少仅用于驱动的​​纠错传输信道的符号间干扰ISI的反馈滤波器(FBF) FFF处于盲模式,并以决策导向模式驱动FFF和FBF; 分散/收敛确定单元,用于使用通过最小单位平方算法获得的单位平方误差来确定判定反馈均衡装置是否发散或收敛; 以及滤波器控制单元,如果判定反馈均衡装置被确定为发散,则以盲模式控制均衡单元,并且如果判定反馈均衡装置被确定为收敛则用于以判决指导模式控制均衡单元。

    Timing lock detection apparatus and method for digital broadcasting receiver
    35.
    发明授权
    Timing lock detection apparatus and method for digital broadcasting receiver 有权
    数字广播接收机定时锁定检测装置及方法

    公开(公告)号:US07933322B2

    公开(公告)日:2011-04-26

    申请号:US11635721

    申请日:2006-12-07

    IPC分类号: H04B3/46

    摘要: A timing lock detection apparatus and method for digital broadcasting receiver are provided. The apparatus includes: a discrete value generator for cyclically selecting a discrete signal value from a continuous timing error signal; a differential calculator for obtaining a difference between the currently selected timing error signal value and a previously selected timing error signal that is a timing jitter signal; a sign variation detector for detecting variation in a sign of the timing jitter signal; a lock control signal generator for discriminating a period based on the detected sign changing time, and controlling a lock step of the loop filter according to a convergence mode of the timing jitter signal at each period; and a lock detection signal generator for generating a lock signal or an unlock signal according to whether the timing jitter signal reaches a steady state and using the current lock step signal.

    摘要翻译: 提供了一种用于数字广播接收机的定时锁定检测装置和方法。 该装置包括:离散值发生器,用于从连续定时误差信号周期性地选择离散信号值; 用于获得当前选择的定时误差信号值与作为定时抖动信号的先前选择的定时误差信号之间的差的差分计算器; 用于检测所述定时抖动信号的符号的变化的符号变化检测器; 锁定控制信号发生器,用于基于检测到的符号变化时间来识别周期,并且根据每个周期的定时抖动信号的收敛模式来控制环路滤波器的锁定步骤; 以及锁定检测信号发生器,用于根据定时抖动信号是否达到稳定状态并使用当前锁定步骤信号产生锁定信号或解锁信号。

    Service providing method based on service subscriber level on cable network
    36.
    发明授权
    Service providing method based on service subscriber level on cable network 失效
    基于有线网络业务用户级别的业务提供方法

    公开(公告)号:US07848247B2

    公开(公告)日:2010-12-07

    申请号:US11520942

    申请日:2006-09-13

    IPC分类号: H04N7/173

    CPC分类号: H04L12/2801

    摘要: Provided is a method for providing a service based on a subscriber level. The method includes the steps of: a) initializing a Data Back-off Start (DBS) value and a Data Back-off End (DBE) value; b) acquiring subscriber information from an external management system; c) acquiring service flow identifier (SFID) and service identifier (SID) information from an object model for quality of service (QoS) based on information on Service Class Name (SCN) of the subscriber acquired in the step b); d) creating manufacturing automation protocol (MAP) according to a priority by grasping the SID information based on the service level and controlling the DBS value and the DBE value of a cable modem (CM); and e) transmitting the created MAP to the cable modem.

    摘要翻译: 提供了一种基于用户级提供服务的方法。 该方法包括以下步骤:a)初始化数据备份启动(DBS)值和数据退回结束(DBE)值; b)从外部管理系统获取用户信息; c)基于在步骤b)中获取的用户的服务类别名称(SCN)的信息,从服务质量(QoS)的对象模型获取服务流标识符(SFID)和服务标识符(SID)信息; d)通过基于服务级别掌握SID信息并控制电缆调制解调器(CM)的DBS值和DBE值,根据优先级创建制造自动化协议(MAP); 以及e)将所创建的MAP发送到电缆调制解调器。

    ONU and method for converting/combining frequency, and apparatus and method for converting/combining frequency in CATV headend system

    公开(公告)号:US07669224B2

    公开(公告)日:2010-02-23

    申请号:US11630160

    申请日:2004-12-30

    IPC分类号: H04N7/22

    摘要: Provided is an outdoor optical node unit (ONU) and method for converting/combining frequencies, and an apparatus and method for converting/combining frequencies in a cable television headend system. The optical node unit (ONU) includes: a downstream optic-to-electric converting unit for converting a downstream optic signal transferred through an optical cable network from a headend system to a downstream electric signal; a down frequency converting and combining unit for isolating the downstream electric signal to a broadcasting signal transmitted as a coaxial cable usable frequency band (In-Band signal) and a band signal higher than the coaxial cable usable frequency band (Super-Band (SB) signal), isolating each of channel signals in the SB signal, converting the isolated channel signals to downstream signals in a coaxial cable usable frequency band, and combining each of the frequency-converted downstream signals with the In-Band signal to generate a coaxial cable usable frequency band downstream signal; an up/down band isolating unit for outputting each of the coaxial cable usable frequency band downstream signals inputted from the down frequency converting and combining unit to a corresponding coaxial cable, or dividing an upstream signal transferred through a coaxial cable from each of subscriber's sub cells to a cable TV upstream frequency band signal and In-Band upstream channel band signal (IUC band signal) which is other upstream channel in a coaxial cable usable frequency band excepting the cable TV upstream frequency band, and outputting the cable TV upstream frequency band signal and the IUC band signal to an upstream frequency converting and combining unit; an upstream frequency converting and combining unit for converting the upstream signals which are the cable TV upstream frequency band signal and the IUC band signal inputted from the up/down band isolating unit to channels not overlapped in the coaxial cable usable frequency band, combining the converted channel signals to generate a coaxial cable usable frequency band upstream electric signal; an up electric-to-optic converting unit for receiving the optical cable usable frequency band upstream electric signal, converting the optical cable usable frequency band upstream electric signal to an upstream optical signal, and outputting the upstream optical signal to the headend system through an optical cable network; and a local oscillating unit for generating local oscillating signal for frequency-conversion, and providing the generated local oscillating signal to the down frequency converting and combining unit or the up frequency converting and combining unit.

    Method for processing updated application data in headend or terminal of digital data broadcasting system
    38.
    发明授权
    Method for processing updated application data in headend or terminal of digital data broadcasting system 有权
    用于处理数字数据广播系统的头端或终端中更新的应用数据的方法

    公开(公告)号:US07523451B2

    公开(公告)日:2009-04-21

    申请号:US10827848

    申请日:2004-04-19

    IPC分类号: G06F9/44 H04N7/173

    CPC分类号: G06F8/65

    摘要: Provided is a method for processing updated data of an application in a headend or a subscriber's terminal of a digital data broadcasting system. The method of the present research forms updated object modules and non-updated object modules among the objects of the application data, transmits them to a subscriber's terminal, abstracts the updated objects in the subscriber's terminal among the objects transmitted from the headend, and outputs them onto a screen, when the objects of the application data are updated in the headend. The updated data processing method includes the steps of: a) confirming that the application data are updated upon an application content update request of a subscriber terminal or application file update of a contents provider; b) generating signaling information of the updated application data and transmitting the signaling information; c) separating updated objects from non-updated objects among objects constituting the application, and updating a file system structure and contents of the application; and d) forming modules including the updated objects and modules including the non-updated objects, updating version information of the modules including the updated objects.

    摘要翻译: 提供一种用于处理数字数据广播系统的头端或用户终端中的应用的更新数据的方法。 本研究的方法在应用数据的对象之间形成更新的对象模块和非更新的对象模块,将它们发送到订户的终端,从用户终端中发送的对象中抽取更新的对象,并将其输出 当应用程序数据的对象在头端更新时,到屏幕上。 更新后的数据处理方法包括以下步骤:a)确认在用户终端的应用内容更新请求或内容提供者的应用文件更新时更新应用数据; b)产生更新的应用数据的信令信息并发送信令信息; c)将构成应用的对象中的更新对象与未更新对象分离,更新应用的文件系统结构和内容; 以及d)形成包括更新对象和模块的模块,包括非更新对象,更新包括更新对象的模块的版本信息。

    Apparatus and method for scrambling high-rate data
    39.
    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。

    Reed-Solomon decoding apparatus and method having high error correction capability
    40.
    发明申请
    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:US20070157068A1

    公开(公告)日:2007-07-05

    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 disclosed. 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: 公开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。