会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 84. 发明申请
    • CONDITIONAL ACCESS APPARATUS AND METHOD FOR PROVIDING TERRESTRIAL DMB SERVICE
    • 条件访问设备和提供地道DMB服务的方法
    • WO2007064075A1
    • 2007-06-07
    • PCT/KR2006/003604
    • 2006-09-11
    • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTELEE, Jin-HwanLEE, Yong-HoonAHN, Chung-HyunLEE, Soo-In
    • LEE, Jin-HwanLEE, Yong-HoonAHN, Chung-HyunLEE, Soo-In
    • H04N7/00
    • H04H60/15H04H20/06
    • Provided is a conditional access apparatus and method for providing a terrestrial Digital Multimedia Broadcasting (DMB) service. The apparatus includes: an ensemble data analyzer for extracting ensemble configuration information, and hierarchically managing program data, respectively; a control word generator for generating a control word; a scrambler for scrambling a specific program from the ensemble data analyzer; a conditional access data coder for receiving subscriber and program information from outside, ensemble configuration information and the control word, and coding conditional access data; and an ensemble data multiplexer for creating ensemble data by multiplexing specific program data, non-scrambled program data, fast information group (FIG) data, and the conditional access data, correcting and adding parameters required for the conditional access in conformity to a broadcasting standard.
    • 提供了一种用于提供地面数字多媒体广播(DMB)服务的条件访问装置和方法。 该装置包括:分集数据分析器,分别提取整体配置信息,分层管理程序数据; 用于产生控制字的控制字发生器; 加扰器,用于对来自所述综合数据分析器的特定程序进行加扰; 用于从外部接收用户和节目信息的条件访问数据编码器,集成配置信息和控制字,以及对条件访问数据进行编码; 以及整体数据多路复用器,用于通过复用特定节目数据,非加扰节目数据,快速信息组(FIG)数据和条件访问数据来创建整体数据,根据广播标准校正和添加条件访问所需的参数 。
    • 89. 发明申请
    • ONU AND METHOD FOR CONVERTING/COMBINING FREQUENCY, AND APPARATUS AND METHOD FOR CONVERTING/COMBINING FREQUENCY IN CATV HEADEND SYSTEM
    • 用于转换/组合频率的ONU和方法,以及用于转换/组合有线电视系统中的频率的装置和方法
    • WO2005125211A1
    • 2005-12-29
    • PCT/KR2004/003534
    • 2004-12-30
    • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEKOO, Han-SeungKWON, O-HyungYOU, WoongshikLEE, Soo-In
    • KOO, Han-SeungKWON, O-HyungYOU, WoongshikLEE, Soo-In
    • H04N7/22
    • H04H20/69H04H60/97H04J14/0298H04N7/10H04N7/17309H04N7/22H04N21/4402H04N21/6118
    • 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.
    • 提供了一种用于转换/组合频率的室外光节点单元(ONU)和方法,以及用于在有线电视头端系统中转换/组合频率的装置和方法。 光节点单元(ONU)包括:下行光电转换单元,用于将通过光缆网络传送的下行光信号从头端系统转换为下游电信号; 用于将下游电信号隔离成作为同轴电缆可用频带(带内信号)发送的广播信号和比同轴电缆可用频带(超频带(SB))高的频带信号的下变频合成单元, 信号),分离SB信号中的每个信道信号,将隔离信道信号转换成同轴电缆可用频带中的下行信号,并将每个频率转换的下行信号与带内信号组合以产生同轴电缆 可用频带下行信号; 上/下频带隔离单元,用于将从下变频和合成单元输入的同轴电缆可用频带下行信号中的每一个输出到对应的同轴电缆,或者划分通过同轴电缆从每个用户的子单元传送的上行信号 到有线电视上行频带信号和除了有线电视上行频带之外的同轴电缆可用频带中的其他上行信道的带内上行信道频带信号(IUC频带信号),并输出有线电视上行频带信号 并将IUC频带信号发送到上行频率转换和组合单元; 用于将作为有线电视上行频带信号的上行信号和从上/下频带隔离单元输入的IUC频带信号转换为在同轴电缆可用频带中不重叠的信道的上行频率转换和组合单元, 通道信号以产生同轴电缆可用频带上游电信号; 用于接收光缆可用频带上行电信号的上行电光转换单元,将光缆可用频带上游电信号转换为上行光信号,并通过光学信号将上行光信号输出到头端系统 有线网络; 以及本地振荡单元,用于产生用于频率转换的本地振荡信号,并将产生的本地振荡信号提供给下变频组合单元或上变频和合并单元。