公开(公告)号：US08789088B2

公开(公告)日：2014-07-22

申请号：US13077470

申请日：2011-03-31

申请人： Han-Seung Koo ,  O-Hyung Kwon ,  Dong-Joon Choi ,  Soo-In Lee

发明人： Han-Seung Koo ,  O-Hyung Kwon ,  Dong-Joon Choi ,  Soo-In Lee

IPC分类号： H04N7/16 ,  H04N7/167 ,  H04N21/418

CPC分类号： H04N7/1675 ,  H04N21/23617 ,  H04N21/4181 ,  H04N21/4383 ,  H04N21/4433 ,  H04N21/4627 ,  H04N21/8193

摘要： A method for installing different security clients for channels in a terminal in a conditional access system includes: searching one or more channels searchable in the terminal; requesting, for respective searched channels, security clients necessary for receiving pay programs to be transmitted through the searched channels, to a broadcasting station which takes charge of the searched channels; and downloading and installing, for respective searched channels, the requested security clients from the broadcasting station.

摘要翻译： 一种用于在条件访问系统中的终端中安装用于信道的不同安全客户端的方法包括：搜索终端中可搜索的一个或多个信道; 向相应搜索的频道请求用于接收通过所搜索的频道发送的付费节目所需的安全客户机，向负责搜索的频道的广播电台请求; 并且从各广播台下载和安装所请求的安全客户端。

公开(公告)号：US20070058680A1

公开(公告)日：2007-03-15

申请号：US11493418

申请日：2006-07-26

申请人： Dong-Joon Choi ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Dong-Joon Choi ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04J1/00

CPC分类号： H04N7/17309 ,  H04H20/79 ,  H04H60/97 ,  H04L12/2801 ,  H04N21/4363 ,  H04N21/4381 ,  H04N21/6118

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。

公开(公告)号：US07961754B2

公开(公告)日：2011-06-14

申请号：US11493418

申请日：2006-07-26

申请人： Dong-Joon Choi ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Dong-Joon Choi ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04J3/16 ,  H04J3/22 ,  H04J1/00

CPC分类号： H04N7/17309 ,  H04H20/79 ,  H04H60/97 ,  H04L12/2801 ,  H04N21/4363 ,  H04N21/4381 ,  H04N21/6118

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。

公开(公告)号：US07778246B2

公开(公告)日：2010-08-17

申请号：US11606152

申请日：2006-11-29

申请人： Dong-Joon Choi ,  Woong-Shik You ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Dong-Joon Choi ,  Woong-Shik You ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04L12/28 ,  H04N7/173

CPC分类号： H04L29/06 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2861

摘要： Provided is an IP data transmission apparatus using a legacy transmission system and a broadband downstream transmission system in a HFC network. The IP data transmission apparatus includes: an headend unit for receiving data from an application server system that is a service providing apparatus, splitting the received data into general user data and management message, determining whether the general user is transmitted using a broadband or an existing service band, and transmitting the general user data through the HFC network; and a user cable terminal unit for receiving the split data transmitted from the headend unit through the HFC network, transmitting the received data to an IP based user device, and transferring the management message to the IP based user device through the legacy transmission system.

摘要翻译： 提供了一种在HFC网络中使用传统传输系统和宽带下行传输系统的IP数据传输设备。 IP数据发送装置包括：前端单元，用于从作为服务提供装置的应用服务器系统接收数据，将接收到的数据分割成一般的用户数据和管理消息，确定是否使用宽带或现有的 服务频段，并通过HFC网络传输一般用户数据; 以及用户电缆终端单元，用于通过HFC网络接收从头端单元发送的分割数据，将接收的数据发送到基于IP的用户设备，并通过传统传输系统将管理消息传送到基于IP的用户设备。

公开(公告)号：US07609727B2

公开(公告)日：2009-10-27

申请号：US11259969

申请日：2005-10-26

申请人： Dong-Joon Choi ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Dong-Joon Choi ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04J3/06

CPC分类号： H04L12/2801 ,  H04J3/085 ,  H04J2203/0042 ,  H04J2203/006

摘要： Provided is an apparatus for transmitting/receiving communication and broadcasting data. The transmitting apparatus includes: a mapper for mapping inputted broadcasting data into a transport stream according to a predetermined standard; a broadcasting buffer for temporarily storing the mapped transport stream for multiplexing; a communication buffer for temporarily storing a communication data stream for multiplexing; a counter for measuring data rate information of a broadcasting stream inputted between two SYNC signals and outputting the measured data rate; an SYNC signal generator for generating an SYNC signal for synchronization between the transmitting apparatus and a receiving part and periodically transmitting the generated SYNC signal; and a multiplexer for multiplexing a communication stream, a broadcasting stream, and an SYNC signal.

摘要翻译： 提供了一种用于发送/接收通信和广播数据的装置。 发送装置包括：映射器，用于根据预定标准将输入的广播数据映射到传输流中; 广播缓冲器，用于临时存储用于复用的映射传输流; 用于临时存储用于复用的通信数据流的通信缓冲器; 计数器，用于测量在两个SYNC信号之间输入的广播流的数据速率信息并输出测量的数据速率; SYNC信号发生器，用于产生用于发送装置和接收部分之间的同步的SYNC信号，并且周期性地发送生成的SYNC信号; 以及用于多路复用通信流，广播流和SYNC信号的多路复用器。

公开(公告)号：US20070127468A1

公开(公告)日：2007-06-07

申请号：US11606152

申请日：2006-11-29

申请人： Dong-Joon Choi ,  Woong-Shik You ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Dong-Joon Choi ,  Woong-Shik You ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04L12/56

CPC分类号： H04L29/06 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2861

摘要： Provided is an IP data transmission apparatus using a legacy transmission system and a broadband downstream transmission system in a HFC network. The IP data transmission apparatus includes: an headend unit for receiving data from an application server system that is a service providing apparatus, splitting the received data into general user data and management message, determining whether the general user is transmitted using a broadband or an existing service band, and transmitting the general user data through the HFC network; and a user cable terminal unit for receiving the split data transmitted from the headend unit through the HFC network, transmitting the received data to an IP based user device, and transferring the management message to the IP based user device through the legacy transmission system.

摘要翻译： 提供了一种在HFC网络中使用传统传输系统和宽带下行传输系统的IP数据传输设备。 IP数据发送装置包括：前端单元，用于从作为服务提供装置的应用服务器系统接收数据，将接收到的数据分割成一般的用户数据和管理消息，确定是否使用宽带或现有的 服务频段，并通过HFC网络传输一般用户数据; 以及用户电缆终端单元，用于通过HFC网络接收从头端单元发送的分割数据，将接收的数据发送到基于IP的用户设备，并通过传统传输系统将管理消息传送到基于IP的用户设备。

公开(公告)号：US20060133398A1

公开(公告)日：2006-06-22

申请号：US11259969

申请日：2005-10-26

申请人： Dong-Joon Choi ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Dong-Joon Choi ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04L12/56 ,  H04J3/26 ,  H04J3/06 ,  H04L12/28

CPC分类号： H04L12/2801 ,  H04J3/085 ,  H04J2203/0042 ,  H04J2203/006

摘要： Provided is an apparatus for transmitting/receiving communication and broadcasting data. The transmitting apparatus includes: a mapper for mapping inputted broadcasting data into a transport stream according to a predetermined standard; a broadcasting buffer for temporarily storing the mapped transport stream for multiplexing; a communication buffer for temporarily storing a communication data stream for multiplexing; a counter for measuring data rate information of a broadcasting stream inputted between two SYNC signals and outputting the measured data rate; an SYNC signal generator for generating an SYNC signal for synchronization between the transmitting apparatus and a receiving part and periodically transmitting the generated SYNC signal; and a multiplexer for multiplexing a communication stream, a broadcasting stream, and an SYNC signal.

公开(公告)号：US08565110B2

公开(公告)日：2013-10-22

申请号：US13025639

申请日：2011-02-11

申请人： Jae-Ho Lee ,  Young-Kwon Hahm ,  Dong-Joon Choi ,  Soo-In Lee

发明人： Jae-Ho Lee ,  Young-Kwon Hahm ,  Dong-Joon Choi ,  Soo-In Lee

IPC分类号： H04L12/26

CPC分类号： H04L41/0833 ,  H03G3/3073 ,  H03G3/3078 ,  H04L25/061

摘要： An apparatus for receiving data in a communication system includes: a detection unit configured to calculate power values of a data packet and a ratio of the power values by using a preamble of the data packet in a received signal, and detect the data packet through the calculated ratio of the power values; a control unit configured to calculate a gain compensation value of the detected data packet, and perform an automatic gain control (AGC) on the detected data packet by using the gain compensation value; a compensation unit configured to calculate a DC offset in the received signal, and remove the DC offset from the received signal; and a demodulator configured to demodulate the AGCed data packet.

摘要翻译： 一种用于在通信系统中接收数据的装置，包括：检测单元，被配置为通过使用接收信号中的数据分组的前导码来计算数据分组的功率值和功率值的比率，并且通过 计算功率值的比值; 控制单元，被配置为计算检测到的数据分组的增益补偿值，并通过使用增益补偿值对检测到的数据分组执行自动增益控制（AGC）; 补偿单元，被配置为计算接收信号中的DC偏移，并从接收信号中去除DC偏移; 以及解调器，被配置为对AGC数据分组进行解调。

公开(公告)号：US20120147763A1

公开(公告)日：2012-06-14

申请号：US13025639

申请日：2011-02-11

申请人： Jae-Ho LEE ,  Young-Kwon Hahm ,  Dong-Joon Choi ,  Soo-In Lee

发明人： Jae-Ho LEE ,  Young-Kwon Hahm ,  Dong-Joon Choi ,  Soo-In Lee

IPC分类号： H04L12/26

CPC分类号： H04L41/0833 ,  H03G3/3073 ,  H03G3/3078 ,  H04L25/061

摘要： An apparatus for receiving data in a communication system includes: a detection unit configured to calculate power values of a data packet and a ratio of the power values by using a preamble of the data packet in a received signal, and detect the data packet through the calculated ratio of the power values; a control unit configured to calculate a gain compensation value of the detected data packet, and perform an automatic gain control (AGC) on the detected data packet by using the gain compensation value; a compensation unit configured to calculate a DC offset in the received signal, and remove the DC offset from the received signal; and a demodulator configured to demodulate the AGCed data packet.

摘要翻译： 一种用于在通信系统中接收数据的装置，包括：检测单元，被配置为通过使用接收信号中的数据分组的前导码来计算数据分组的功率值和功率值的比率，并且通过 计算功率值的比值; 控制单元，被配置为计算检测到的数据分组的增益补偿值，并通过使用增益补偿值对检测到的数据分组执行自动增益控制（AGC）; 补偿单元，被配置为计算接收信号中的DC偏移，并从接收信号中去除DC偏移; 以及解调器，被配置为对AGC数据分组进行解调。

公开(公告)号：US20050141559A1

公开(公告)日：2005-06-30

申请号：US10983081

申请日：2004-11-04

申请人： Dong-Joon Choi ,  Nae-Soo Kim

发明人： Dong-Joon Choi ,  Nae-Soo Kim

IPC分类号： H04L12/28 ,  H04L29/06

CPC分类号： H04L65/607 ,  H04L29/06027 ,  H04L65/80 ,  H04N21/234327 ,  H04N21/23614 ,  H04N21/2383 ,  H04N21/242 ,  H04N21/4305 ,  H04N21/4348 ,  H04N21/4382 ,  H04N21/631

摘要： An apparatus and a method for transmitting multimedia transport stream hierarchically and recovering the multimedia transmission stream are disclosed. The apparatus includes: an input matching unit for dividing the multimedia data transport stream into packets; a sequence number inserting unit for inserting a sequence number to the packet; an error check code (ECC) inserting unit for inserting an ECC to the sequence number inputted packet, to thereby generate a user packet; a layer information storing unit for storing layer information for the user packet; a layer dividing unit for dividing the user packet; a layer storing unit for storing the divided user packet in each layer; and a hierarchical framing and transmitting unit for generating a hierarchical transport frame by combining a predetermined number of the user packets with the layer information, and transmitting the hierarchical frame in a different transmission method for a different layer.

摘要翻译： 公开了分层传输多媒体传输流和恢复多媒体传输流的装置和方法。 该装置包括：输入匹配单元，用于将多媒体数据传输流分成分组; 序列号插入单元，用于将序列号插入到分组中; 用于将ECC插入到序列号输入分组中的错误校验码（ECC）插入单元，从而生成用户分组; 层信息存储单元，用于存储用户分组的层信息; 层划分单元，用于划分用户分组; 层存储单元，用于在每层中存储划分的用户分组; 以及分层成帧和发送单元，用于通过将预定数量的用户分组与层信息组合来生成分级传输帧，并且以不同的传输方式发送不同层的分层帧。