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114 results about "Ethernet over coax" patented technology

Ethernet over Coax (EoC) is a family of technologies that supports the transmission of Ethernet frames over coaxial cable.

System and method for creating cheap efficient high-speed home networks.

Broadband connections of end users to the Internet are becoming more and more common today, and the most common types of these fast connections are ADSL and Cable modems. These connections are typically still very slow compared to the speeds that are expected in the next few years and typically also highly asymmetric and allow typically 750-2000 Kbit per second (most typically 1500 Kbit) for the downlink and typically for example 96 Kbit or 128 Kbit per second for the uplink (although standard ADSL can in principle support up to 8 Mbit per second download speed and up to 800 Kbit per second upload speed), based on the assumption that most users download much more data than they upload. However, for many users these limitations are highly undesirable, and these are for example home users or small businesses or organizations who want to use the connection also for example for VOIP (voice over IP) communications and/or Video-over IP communications and/or conferences and/or for example running web servers and/or for example various p2p applications, and in fact the low uplink also many times slows down the downlink due to the overhead needed for dealing with relatively small packets, so that any additional uplink by the user can severely limit the real downlink that can be achieved below the downlink bandwidth which the user is paying for. Actually ADSL is beginning to be replaced in some places by VDSL where the distance to the nearest street switchboard is about 1.2 Kilometers or less, which in principle allows up to 52 Mbit per second Download speed and up to 16 Mbit per Second Upload speed. However, these modems are expensive and are only slowly entering the market and only in a few countries. On the other hand there is no need to upgrade typical cable modems for enabling faster speeds, such as for example 20 Mbit downlink and 2 Mbit uplink, as is offered for example in France, when the ISPs start offering such speeds—since the typical common cable modem is already capable of such speeds. The present invention enables an improved Ethernet-over-coax solution which enables using one or a few very high speed modems, each for multiple users or apartments, preferably in combination with very cheap and very fast home networks (offering preferably at least up to 100 Mbit per second for each computer, preferably at full duplex), preferably based on the Cable TV coax cables, so that multiple computers can share the same internet connection for example in the same apartment and/or communicate between themselves. This preferably includes using a different frequency for the Ethernet-over coax channel for each computer in the apartment. Also shown are for example improved home networks using the second set of normally unused 2 phone wires and for example some improvement in HPNA networks, such as for example using HPNA also to connect between the street switchboard and the home or office instead of having to use also for example an ADSL or VDSL modem.
Owner:MAYER YARON +1

Equipment unified management method for Ethernet passive optical network and Ethernet over coax (EPON+EoC) two-way cable access network

The invention provides an equipment unified management method for an Ethernet passive optical network and Ethernet over coax (EPON+EoC) two-way cable access network. The method comprises the following steps that: an Ethernet over coax (EoC) high performance switch transmits a registration request to Ethernet passive optical network (EPON) local side optical line terminal equipment based on a group management protocol; after receiving the registration request, information transfer equipment attaches identification information and the physical connection topology information of equipment managed by the information transfer equipment to the registration request and uploads the registration request; and after the EPON local side optical line terminal equipment receives the registration request attached with the physical connection topology information, the EPON local side optical line terminal equipment calculates a corresponding management address according to the physical connection topology information comprised by the registration request and a preset address calculation method, and transmits the management address to the EoC high performance switch, so that the EoC high performance switch correspondingly sets the management address of the EoC high performance switch; therefore, the unified management of the EPON local side optical line terminal equipment is realized, and the physical connection topology of high performance switch (HS) equipment can be automatically discovered.
Owner:SHANGHAI BROADBAND TECH

EoC (Ethernet Over Coax) network equipment management system and method based on simple network management protocol

The invention relates to an EoC (Ethernet Over Coax) network equipment management system based on a simple network management protocol. The system comprises local end equipment and a plurality of terminal equipment, wherein the terminal equipment is connected with the local end equipment by an EoC network; and each kind of terminal equipment comprises a network topological graph generating module, a display module, a terminal storage module, a terminal control module and a terminal network connecting module. The invention also provides a method for realizing EoC network equipment management based on the simple network management protocol by utilizing the system. By adopting the EoC network equipment management system based on the simple network management protocol, when the EoC network is accessed into new terminal equipment, a basic information broadcast packet is transmitted to the local end equipment; after the local end equipment receives the broadcast packet, the basic information of the new terminal equipment is stored into the local end storage module, and the network topological graph generating module generates new terminal topological graph display, therefore, the reading time of the configuring information of the terminal equipment is greatly shortened and better use experience is brought to a user.
Owner:SHANGHAI DAREGLOBAL TECHNOLOGIES CO LTD

EHz ultrafast modulation pulse scanning laser and distributed optical fiber sensing system

The invention provides an EHz ultrafast modulation pulse scanning laser and a distributed optical fiber sensing system. A doped optical fiber is carved with a plurality of phase shift gratings with different central window wavelengths, and the wavelength interval between adjacent central window wavelengths is a preset fixed value; when pump light emitted by a pump laser source enters the doped optical fiber through the coupling of a wavelength division multiplexer, the phase shift gratings carved on the doped optical fiber can generate multi-wavelength single-mode narrow-linewidth laser with the wavelength interval of the preset fixed value; and then, the ultrafast modulation is finished by a time domain control method based on EOM (Ethernet over coax) to obtain internal variable frequencypulse light formed by continuously splicing a plurality of pulse lights with linearly increasing frequencies, thereby forming the EHz ultrafast modulation of the distributed feedback fiber laser. Therefore, the coherence length of output laser can be increased on the premise that the laser frequency is unchanged, and the problem that the existing distributed optical fiber sensing system is restricted in high spatial resolution, long distance and high frequency band can be effectively solved.
Owner:LASER RES INST OF SHANDONG ACAD OF SCI

Integrated soft intelligent equipment server for intelligent substation

The invention discloses an integrated soft intelligent equipment server for an intelligent substation, belonging to the technical field of the intelligent substations. The integrated soft intelligent equipment server is technically characterized by comprising intelligent Ethernet controllers EOC (Ethernet Over Coax), a complex programmable logic device (CPLD), an FLASH transient memory, a digital signal processing unit (DSP), a first double port random memory (RAM), a second double port random memory (RAM), an operation control subsystem and an overhaul monitoring subsystem, wherein the operation control subsystem comprises a first Ethernet controller and an operation master control module; and the overhaul monitoring subsystem comprises a second Ethernet controller and a production master control module. According to the integrated soft intelligent equipment server disclosed by the invention, the advantages of distribution type and integrated type are fused, so that the cost is remarkably reduced, network nodes are reduced, a communication network is simplified and the openness, the reliability and the economy of an intelligent system are improved; and in addition, the interoperability among various intelligent electronic devices (IED) is seamlessly realized.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Network transmission equipment based on EOC (Ethernet over Coax)

This invention provides a network transmission equipment based on EOC. The network transmission equipment comprises a front-end network equipment, an EOC equipment, an EOC node computer and a receiver; the network equipment is in a communication connection with the EOC equipment through a cable; the EOC equipment is in a communication connection with the EOC node computer through a coaxial cable; the EOC node computer is in a communication connection with the receiver through an optical port or an electric port; the EOC node computer or the EOC equipment can supply power to each other through the coaxial cable; signals on the coaxial cable are transmitted through a protection module, a filter isolation module, a signal amplifying module and a coding/decoding module in sequence; the filter isolation module is used for filtering interference; the signal amplifying module is used for transmitting the signals remotely; a data analog converter used for reciprocally converting analog signals and digital signals is arranged between the signal amplifying module and the coding/decoding module; and the coding/decoding module is used for coding/decoding the digital signals. The network transmission equipment can smoothly solve wiring and transmission problems, can supply power coaxially, and can improve the network transmission performance.
Owner:OB TELECOM ELECTRONICS

Next generation broadcasting network (NGB) access network architecture system and butt joint method of Ethernet over coax (EOC) network management system and business operation support system (BOSS)

The invention provides a next generation broadcasting network (NGB) access network architecture system and a butt joint method of an Ethernet over coax (EOC) network management system and a business operation support system (BOSS). The NGB access network architecture system comprises a business management system, an authentication management system connected with the business management system, a call-center system connected with the authentication management system, three China national ratio (CNR) servers which are connected with the authentication management system and respective serve customer terminal equipments with the types of cable modems, personal computers and set top boxes, and a simple network management protocol (SNMP) management system which is connected with the authentication management system and used for carrying out SNMP configuration on the various customer terminal equipments; and the architecture system also comprises a butt joint management system used for taking part in the butt joint with the authentication management system so as to complete authentication, optical line terminal management equipment connected with all the CNR servers and the SNMP management system, EOC local side management equipment connected with the optical line terminal management equipment, and customer terminal access equipment connected with the EOC local side management equipment. The architecture system and the butt joint method enable all EOC access technologies to be suitable for the BOSS, thus reducing the butt joint cost and the technical risk, and reducing the access difficulty.
Owner:上海云视科技股份有限公司

Quality of service (QOS) strategy realizing method based on Ethernet over coax (EOC) terminal

The invention discloses a quality of service (QOS) strategy realizing method based on an Ethernet over coax (EOC) terminal, and relates to the technical field of Ethernet signal transmission on a coaxial cable. The QOS strategy realizing method concretely comprises the following steps that: firstly, a QOS strategy base based on each EOC terminal facility is configured, and the QOS strategy base is placed in an EOC local side facility and comprises terminal facility identification information and QOS strategies corresponding to the terminal facility identification information; and after the QOS strategy base of each EOC terminal facility is configured, the EOC local side facility receives user data streams, then, the two-layer information in messages is analyzed, and the QOS strategy base is inquired according to terminal facility identification information in the two-layer information, so the QOS strategies corresponding to the terminal facility are obtained. The QOS strategies based on each terminal facility is realized in an EOC system, so the local side facility only concerns each connected terminal equipment and does not need to concern user facility information connected under the terminal facility, the implementation difficulty of the QOS strategies is reduced, the configuration work of the QOS strategies is simplified, and the system operation speed is accelerated.
Owner:CHENGDU GUANGDA NEW NETWORK TECH

EOC (Ethernet over Coax) terminal

An EOC terminal belongs to the technical field of cable televisions. The EOC terminal comprises a radio frequency connector, a data exchange chip, a wireless routing integrated unit, a wireless radio frequency interface and a wireless transmission antenna, the CABLE interface of the radio frequency connector is connected with an EOC local side, the TV interface of the radio frequency connector is connected with the radio frequency interface of a cable television set top box, the DATA interface of the radio frequency connector is connected with the data exchange chip, the wireless routing integrated unit comprises a wireless routing integrated chip, the PHY (physical) interface of the wireless routing integrated chip is connected with the data exchange chip, the WAN (wide area network) interface of the wireless routing integrated chip is connected with the wireless radio frequency interface, and the wireless radio frequency interface is connected with the wireless transmission antenna. The EOC terminal has the advantages that the EOC terminal can be added on the side of an existing reserved set top box, consequently, smooth upgrading is realized, and the initial investment cost is saved; the EOC terminal can be mounted on demand, so that the invested cost of an operator can be reduced; the wireless home coverage of cable televisions and wired Internet access is perfectly realized; and the EOC terminal is adapted to the access of a variety of networks.
Owner:CHANGSHU GAOSHIDA PHOTOELECTRICITY TECH

Method and device for authenticating terminal as well as EOC (Ethernet over Coax) terminal

The invention relates to a method and device for authenticating a terminal as well as an EOC (Ethernet over Coax) terminal. The method for authenticating the terminal comprises the following steps of: acquirement: acquiring characteristic domain information of the EOC terminal and first encryption control domain information which is prestored in the EOC terminal and generated according to a preset key and encryption algorithm based on the characteristic domain information; calculation: generating second encryption control domain information according to the preset key and encryption algorithm based on the characteristic domain information; and authentication: judging whether the first encryption control domain information and the second encryption control domain information accord with the preset authentication passing rule or not, allowing the EOC terminal to pass the authentication if the first encryption control domain information and the second encryption control domain information accord with the authentication passing rule; or otherwise, not allowing the EOC terminal to pass the authentication. The invention can achieve the purpose of carrying out the authentication control on the terminal on the basis of not increasing the terminal cost.
Owner:NEW H3C TECH CO LTD

Multimedia network communication comprehensive experiment system

InactiveCN103871299AGuarantee interconnectionMeet the needs of practical teachingTeaching apparatusDigital televisionMultimedia network
The invention discloses a multimedia network communication comprehensive experiment system, comprising a digital television system, a campus network, a router, an SDH (synchronous digital hierarchy) transmission looped network, a comprehensive service support platform and an IPTV (internet protocol television) network; the existing digital television laboratory is used for providing a signal source, the signal is scheduled by using an IP (internet protocol) packaging technology and the configuration of a service gateway, an HFC (Hybrid Fiber Coaxial)-based and full-IP network bearing mode is established for transmission, networking technologies of EPON (Ethernet passive optical network), EPON+LAN (local area network), EPON+WALN (wireless local area network), EPON+EOC (Ethernet over coax) and the like are adopted at the access end, and finally the aim of providing services such as television, broadcasting, interactive television, internet accessing, voice and message service are provided for a user at the terminal. The invention aims to establish an opening experiment education system which integrates specialty, comprehensiveness and openness, has excellent software environment and advanced hardware environment and can perform comprehensive training on the scientific spirit, the practical capability and engineering attainment of students.
Owner:SOUTHEAST UNIV
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