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    • 13. 发明申请
    • Time division multiplexing frame for multiplexing different synchronous signals and method for transmitting and receiving the same
    • 用于复用不同同步信号的时分多路复用帧及其发送和接收方法
    • US20050169316A1
    • 2005-08-04
    • US10941711
    • 2004-09-15
    • Seung-Jin LeeYun-Je OhJun-Ho KohJae-Hun Cho
    • Seung-Jin LeeYun-Je OhJun-Ho KohJae-Hun Cho
    • H04J3/00H04J3/07H04J3/16H04L25/02H04N7/173H04N21/647
    • H04N21/2365H04J3/07H04J3/1694H04N21/235H04N21/23614H04N21/4347H04N21/4348
    • A TDM (Time Division Multiplexing) frame applicable to digital broadcast data transmission in an FTTH (Fiber To The Home) system and a method for transmitting and receiving the TDM frame is disclosed. The TDM frame and methods are applicable to transmit a plurality of digital broadcast data units having different synchronous clocks using a simple format. The TDM frame for multiplexing digital broadcast and communication signals having different synchronous signals in a broadcast/communication convergence system using an FTTH system comprises a framing bit field for identifying a start and end of the TDM frame seamlessly provided; two MPTS (Multiple-Program Transport Stream) fields respectively having at least one bit assigned for digital broadcast data transmission wherein an amount of input digital broadcast data is adjusted according to a difference between a multiplexing rate and an input rate associated with the digital broadcast data in the digital broadcast data transmission; and a fast Ethernet field having at least one bit assigned for communication data transmission.
    • 公开了适用于FTTH(Fiber To Home)系统中的数字广播数据传输的TDM(时分复用)帧以及TDM帧的发送和接收方法。 TDM帧和方法适用于使用简单格式发送具有不同同步时钟的多个数字广播数据单元。 用于在使用FTTH系统的广播/通信收敛系统中复用具有不同同步信号的数字广播和通信信号的TDM帧包括用于识别无缝提供的TDM帧的开始和结束的成帧位域; 分别具有分配给数字广播数据传输的至少一个比特的两个MPTS(多节目传输流)字段,其中根据复用率和与数字广播数据相关联的输入速率之间的差异来调整输入数字广播数据的量 在数字广播数据传输中; 以及具有至少一个分配给通信数据传输的位的快速以太网字段。
    • 14. 发明申请
    • Residential ethernet switching device for sub frame-based switching
    • 用于子帧交换的住宅以太网交换设备
    • US20070014279A1
    • 2007-01-18
    • US11481588
    • 2006-07-06
    • Si WangKwan-Soo LeeYun-Je OhJun-Ho KohSang-Ho KimJae-Hun Cho
    • Si WangKwan-Soo LeeYun-Je OhJun-Ho KohSang-Ho KimJae-Hun Cho
    • H04L12/28H04L12/56
    • H04L49/351H04L12/52H04L49/206
    • A residential Ethernet switching device for sub frame-based switching in a residential Ethernet system is provided. The device includes a plurality of reception data path processors for parsing a residential Ethernet frame inputted to the residential Ethernet switching device, as respective residential Ethernet sub frames, and outputting the parsed residential Ethernet sub frames, a switch fabric for switching the residential Ethernet sub frames inputted through the plurality of reception data path processors, a plurality of transmission data path processors for providing an output path for multiplexing and outputting the residential Ethernet sub frames switched through the switch fabric, and a local cycle counter connected to the plurality of reception data path processors, the switch fabric, and the plurality of transmission data path processors, and providing cycle counter information on the respective residential Ethernet sub-frames.
    • 提供住宅以太网系统中用于子帧交换的住宅以太网交换设备。 该设备包括多个接收数据路径处理器,用于解析输入到住宅以太网交换设备的住宅以太网帧作为相应的住宅以太网子帧,并输出解析的住宅以太网子帧,用于切换住宅以太网子帧 通过多个接收数据路径处理器输入的多个传输数据路径处理器,用于提供用于复用和输出通过交换结构切换的住宅以太网子帧的输出路径的多个传输数据路径处理器,以及连接到多个接收数据路径的本地周期计数器 处理器,交换结构和多个传输数据路径处理器,并且在各个住宅以太网子帧上提供周期计数器信息。
    • 15. 发明申请
    • Asynchronous frame transmission method for strictly ensuring beginning of super frame in residential ethernet
    • 用于严格确保住宅以太网超帧启动的异步帧传输方法
    • US20060230147A1
    • 2006-10-12
    • US11399867
    • 2006-04-07
    • Jae-Hun ChoJong-Ho YoonSang-Ho KimYun-Je OhJun-Ho KohHee-Kyung Choi
    • Jae-Hun ChoJong-Ho YoonSang-Ho KimYun-Je OhJun-Ho KohHee-Kyung Choi
    • G06F15/173
    • H04L12/66
    • A method for transmitting asynchronous data includes including: comparing a size of asynchronous data with that of an empty transmission area; inserting the asynchronous data into the empty transmission area when the asynchronous data has a size smaller than or equal to that of the empty transmission area; determining if the empty transmission area has a size larger than a predetermined threshold value when the asynchronous data has a size larger than that of the empty transmission area; transmitting the asynchronous data with the empty transmission area left when the empty transmission area has a size smaller than the predetermined threshold value; and segmenting the asynchronous data according to the size of the empty transmission area when the empty transmission area has a size larger than the predetermined threshold value, inserting the segmented asynchronous data into the empty transmission area, and transmitting remaining segmented asynchronous data in a subsequent transmission cycle.
    • 用于发送异步数据的方法包括:将异步数据的大小与空的传输区域的大小进行比较; 当异步数据的大小小于或等于空传输区域的大小时,将异步数据插入空传输区域; 当所述异步数据的尺寸大于所述空的传输区域的大小时,确定所述空的传输区域是否具有大于预定阈值的大小; 当所述空传输区域具有小于所述预定阈值的大小时,向所述空传输区域发送所述异步数据; 并且当所述空传输区域具有大于所述预定阈值的大小时,根据所述空传输区域的大小来分割所述异步数据,将所述分段的异步数据插入所述空传输区域,以及在随后的传输中发送剩余的分段异步数据 周期。
    • 16. 发明授权
    • Time division multiplexing frame for multiplexing different synchronous signals and method for transmitting and receiving the same
    • 用于复用不同同步信号的时分多路复用帧及其发送和接收方法
    • US07499471B2
    • 2009-03-03
    • US10941711
    • 2004-09-15
    • Seung-Jin LeeYun-Je OhJun-Ho KohJae-Hun Cho
    • Seung-Jin LeeYun-Je OhJun-Ho KohJae-Hun Cho
    • H04J4/00
    • H04N21/2365H04J3/07H04J3/1694H04N21/235H04N21/23614H04N21/4347H04N21/4348
    • A TDM (Time Division Multiplexing) frame applicable to digital broadcast data transmission in an FTTH (Fiber To The Home) system and a method for transmitting and receiving the TDM frame is disclosed. The TDM frame and methods are applicable to transmit a plurality of digital broadcast data units having different synchronous clocks using a simple format. The TDM frame for multiplexing digital broadcast and communication signals having different synchronous signals in a broadcast/communication convergence system using an FTTH system comprises a framing bit field for identifying a start and end of the TDM frame seamlessly provided; two MPTS (Multiple-Program Transport Stream) fields respectively having at least one bit assigned for digital broadcast data transmission wherein an amount of input digital broadcast data is adjusted according to a difference between a multiplexing rate and an input rate associated with the digital broadcast data in the digital broadcast data transmission; and a fast Ethernet field having at least one bit assigned for communication data transmission.
    • 公开了适用于FTTH(Fiber To Home)系统中的数字广播数据传输的TDM(时分复用)帧以及TDM帧的发送和接收方法。 TDM帧和方法适用于使用简单格式发送具有不同同步时钟的多个数字广播数据单元。 用于在使用FTTH系统的广播/通信收敛系统中复用具有不同同步信号的数字广播和通信信号的TDM帧包括用于识别无缝提供的TDM帧的开始和结束的成帧位域; 分别具有分配给数字广播数据传输的至少一个比特的两个MPTS(多节目传输流)字段,其中根据复用率和与数字广播数据相关联的输入速率之间的差异来调整输入数字广播数据的量 在数字广播数据传输中; 以及具有至少一个分配给通信数据传输的位的快速以太网字段。
    • 19. 发明申请
    • Apparatus and method for compensating for PCR and data rate
    • 用于补偿PCR和数据速率的装置和方法
    • US20060120383A1
    • 2006-06-08
    • US11296618
    • 2005-12-07
    • Sang-Ho KimJae-Hun ChoChang-Sup ShimYun-Je OhJun-Ho Koh
    • Sang-Ho KimJae-Hun ChoChang-Sup ShimYun-Je OhJun-Ho Koh
    • H04L12/56H04L12/28
    • H04N21/4305
    • A method and apparatus by which a reception device of a communication system can sense and compensate for an error of a program clock reference (PCR), and can sense and compensate for bit rate variation of transmission data in a transmitted MPEG-2 TS. The method and apparatus compensates for a PCR jitter, or a change in a data bit rate, which may occur in processing an MPEG-2 TS in a reception device of the MPEG-2 TS transmission system, thereby preventing the deterioration of image quality due to the jitter or loss of an input MPEG-2 TS data. The apparatus includes a PAT sensing unit for sensing a PAT from a received MPEG-2 TS, a PMT sensing unit for sensing a PMT based on information provided from the PAT sensing unit, a PCR PID unit for sensing a PCR PID based on information provided from the PMT sensing unit and a PCR data unit for outputting a PCR data based on information provided from the PMT sensing unit and PID information provided from the PCR PID unit. The apparatus also includes a PCR comparison/compensation unit receiving the PCR data from the PCR data unit, comparing the received PCR data with a pre-stored PCR data, and compensating for the pre-stored PCR data, and a data rate comparison/compensation unit for receiving data rate information from the PCR data unit, comparing the received data rate with a pre-stored data rate, and compensating for the pre-stored data rate.
    • 通信系统的接收装置可以感测和补偿程序时钟参考(PCR)的错误的方法和装置,并且可以感测和补偿所发送的MPEG-2TS中的传输数据的比特率变化。 所述方法和装置补偿在MPEG-2 TS传输系统的接收装置中处理MPEG-2 TS时可能发生的PCR抖动或数据比特率的变化,从而防止由于MPEG-2 TS传输系统的接收装置的劣化 输入MPEG-2 TS数据的抖动或丢失。 该装置包括用于从接收的MPEG-2 TS感测PAT的PAT感测单元,用于基于从PAT感测单元提供的信息来感测PMT的PMT感测单元,用于基于提供的信息感测PCR PID的PCR PID单元 来自PMT感测单元和PCR数据单元,用于基于从PMT感测单元提供的信息和从PCR PID单元提供的PID信息输出PCR数据。 该装置还包括PCR比较/补偿单元,从PCR数据单元接收PCR数据,将接收的PCR数据与预先存储的PCR数据进行比较,并补偿预存的PCR数据,以及数据比率比较/补偿 单元,用于从PCR数据单元接收数据速率信息,将接收到的数据速率与预先存储的数据速率进行比较,并补偿预存的数据速率。