摘要:
A broadcast/communication convergence system and method for transmitting and receiving Ethernet data by an optical network unit (ONU) performing a time division multiplexing (TDM) operation and switching by a network switch. A resultant signal is transmitted to a corresponding subscriber set-top box (SSTB), and data from the SSTB is provided to the network switch. A length of an Ethernet data frame is provided from the network switch, and an encapsulation generates and inserts data length information into an Ethernet data frame, for transmission to the SSTB. The SSTB carries out a TDM operation for a signal transmitted from the ONU, and separates the signal into Ethernet and broadcast data. A framing bit is detected based on a result of the separated signals, the length information is detected. A preamble bit and a start-of-field delimiter (SFD) are inserted into the recognized Ethernet data to recover the original Ethernet data.
摘要:
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.
摘要翻译: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。
摘要:
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.
摘要翻译: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。
摘要:
A broadcast/communication convergence system and a method for transmitting and receiving Ethernet data using the same is disclosed. The system is equipped with an optical network unit performing a time division multiplexing operation on the Ethernet data switched by a network switch and a plurality of broadcast data units, transmitting a resultant signal of the operation to a corresponding subscriber set-top box, and providing data from the subscriber set-top box to the network switch. In one aspect of the invention, the optical network unit produces a length of an Ethernet data frame provided from the network switch. An encapsulation operation is carried out by generating data length information and inserting the generated length information into an Ethernet data frame. Encapsulated Ethernet data is transmitted to the subscriber set-top box. The subscriber set-top box carries out a time division demultiplexing operation for a signal transmitted from the optical network unit, and separates the signal into the Ethernet data and broadcast data. When a framing bit is detected from the frame of the Ethernet data based on a result of the separation, the length information is detected from the Ethernet data frame. The Ethernet data frame is counted on the basis of the detected length information and recognizing the Ethernet data. A preamble bit and a start-of-field delimiter (SFD) are inserted into the recognized Ethernet data and the original Ethernet data is recovered.
摘要:
A system for integrating broadcast and communication technologies includes an optical-line terminal (OLT), a optical-network unit (ONU) and a user gateway, wherein a broadcast signal is processed on the basis of time division multiplexing (TDM) such that the quality of a broadcast service can be ensured. The ONU separates the optical signal transmitted from the OLT into the broadcast signal and the communication signal, processes upstream information transmitted from a user, and optically transmits the broadcast signal and the communication signal selected on a user-by-user basis, on the basis of a time slot. The user gateway opto-electrically converts a time slot-based optical signal transmitted from the ONU, separates the time slot-based optical signal into individual signals, distributes the individual signals on a service-by-service basis, and optically transmits the upstream information from the user to the ONU.
摘要:
A multi-disc air diffuser according to the present invention comprises a bolt having a vent groove formed in a longitudinal direction thereof; a plurality of discs, each of the discs having a bolt joint section to be passed through the bolt, an air room for holding the air supplied through the vent groove, and a nozzle section having a plurality of nozzles which are arranged in an end part of the air room at a regular size and intervals, wherein the lower surface of each of the discs is more than the upper surface thereof and the outer circumference surface of each of the discs is formed to be inclined; and a backflow prevention section for joining to an end part of the bolt to adhere closely the discs to one another, connecting the vent groove to an air supply pipe, and having a check valve to prevent the air flowing backward from the vent groove to the air supply pipe.
摘要:
The present invention provides methods for identifying the plurality of aptamers that bind to different sites of a target molecule and methods for using the same, for example, in sandwich assays. In particular, the plurality of aptamers binding to different sites of the target molecules is identified from a library of aptamers identified from the same SELEX process.
摘要:
A display apparatus that facilitates shielding of electromagnetic waves and heat dissipation is disclosed. The display apparatus may include: i) a substrate, ii) a sealing member disposed to face the substrate, iii) a display unit disposed between the substrate and the sealing member, iv) a driving chip disposed on the substrate and transmitting an electric signal to the display unit and v) a circuit board including a signal line that is electrically connected to the driving chip, and a conductive cover layer disposed to cover the driving chip. In one embodiment, the circuit board includes a heat sink for dissipating heat generated by the driving chip.
摘要:
The present invention relates to new compounds directly increasing kinase activity of p90 ribosomal S6 kinase 1 (RSK1), a pharmaceutical composition comprising them as active ingredient, a use thereof to prevent or treat hepatic fibrosis or cirrhosis, and a method for preventing or treating hepatic fiborsis or cirrhosis, comprising administering a therapeutically effective amount of the composition to mammal.
摘要:
The present invention provides a electrochemical element, wherein a multi-component composite film comprising a) polymer support layer film and b) a porous gellable polymer layer which is formed on either or both sides of the support layer film of a), wherein the support layer film of a) and the gellable polymer layer of b) are unified with each other without an interface between them.