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8184974 |
Fiber-to-the-seat (FTTS) fiber distribution system
A modular, scalable, extensible, In-Flight Entertainment (IFE) data communication system is described. In one embodiment, the system comprises a hub providing connection between one or more...
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8184987 |
Method, system and device for realizing data transmission extension in passive optical network
A method, a device, and a system for realizing data transmission extension in a passive optical network (PON) are provided. Between a burst-mode clock and data recovery (BCDR) module and an...
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8180224 |
Method, apparatus and system for transmitting Ethernet signals in optical transport network
A method, apparatus and system for transmitting Ethernet signals in an OTN are provided. The method may include: mapping the Ethernet signals to timeslot units, where a VCG composed of multiple...
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8139950 |
Passive optical network system, optical line terminator and, communication method of passive optical network system
A passive optical network system (PON) has a plurality of OLTs and ONUs with different transmission rates. OLTs with different transmission rates share information of priority frames and...
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8126329 |
Quad-port optical module with pass-through and add/drop configuration
Techniques are disclosed for providing bi-directional data services involving a plurality of wavelengths. The data services may be hybrid in nature, including both digital and analog data signals....
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8126333 |
Optical transmission system and synchronization method using time reference pulse
An OLT includes a first transmitter and receiver unit for transmitting and receiving signals with ONUs, a first communication control timer, a measurement unit for measuring a round trip time (RTT)...
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8098990 |
System and method for providing wireless over a passive optical network (PON)
A network system and method include a wireless base station integrated at a central office of a service provider. The wireless base station is configured to provide portable and fixed services to...
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8090262 |
Service handover method, optical network system, handover equipment and PE equipment in an OVPN
An optical network system disclosed in an embodiment of the present invention contains a PE and a handover equipment located between the PE and a CE. The PE is adapted to provide optical network...
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8078058 |
Ultra high-speed adaptive and all-optical method for data packet rate multiplication compatible with multiple data rates
The present invention relates to an adaptive and all-optical method for data packet rate multiplication compatible with multiple data rates and/or multiple communication protocols. By performing a...
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8078057 |
Centralized congestion avoidance in a passive optical network
In one aspect, a method for congestion avoidance in a passive optical network having an optical line terminal communicatively connected to a plurality of optical network termination devices is...
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8064773 |
Multi-channel optical communication
An optical fiber communications apparatus comprises a housing provided with a motherboard and a plurality of modular cards , each of which is engageable with the motherboard via one of the card...
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8059962 |
Interleaving for 10G GPON
An apparatus comprising a plurality of data framers, a time division multiplexer coupled to the data framers, and an optical transmitter coupled to the time division multiplexer. Also disclosed is...
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8045261 |
Reflective semiconductor optical amplifier (RSOA), RSOA module having the same, and passive optical network using the same
A Reflective Semiconductor Optical Amplifier (RSOA) for compensating for light loss in an optical link, an RSOA module for improving polarization dependency using the RSOA, and a Passive Optical...
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8041219 |
Optical network element with Brillouin effect colorless wavelength shift
A method of optical communication includes generating an amplified optical signal from at least a portion of a first optical signal having a first carrier wavelength, λ1. The amplified optical ...
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8000606 |
Method for processing overheads of optical communication system and signal processing device
A method for processing overheads in an optical communication system and a signal processing device are disclosed. The method includes: in a receiving direction, conduct an O/E and S/P conversion...
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8000605 |
Synchronous OTDM: gapped clock creation and duty cycle multiplication
Methods and apparatus for implementing synchronous Optical Time Division Multiplexing are presented. Namely, a method of upconverting and combining N input NRZ optical data signals, each having an...
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7974290 |
TDMA passive optical network OLT system for broadcast service
Provided is a TDMA (time division multiple access) PON (passive optical network) OLT (optical line terminal) system for a broadcast service, including packet processor determining information...
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7970281 |
System and method for managing different transmission architectures in a passive optical network
In accordance with the teachings of the present invention, a system and method for managing different transmission architectures in a passive optical network (PON) is provided. In a particular...
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7957646 |
Optical time division multiplexing transmitter
The optical time division multiplexer generates a time-division-multiplexed optical signal by time-division-multiplexing optical signals of a plurality of channels, the carrier-wave phases of which...
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7920791 |
Passive optical network system and method of data transmission in the passive optical network
Regarding the passive optical network (PON) system of the present invention, in an OLT, data of different bit rates is framed, and framed data rows are subjected to FEC encoding processing without...
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7917032 |
Multi-bit-rate optical communication method, optical network unit, and optical line terminal
The present invention relates to a multi-bit-rate optical communication method, optical network units, and an optical line terminal that enable multi-bit-rate transmission of low bit-rate data and...
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7903973 |
Dynamic temporal duration optical transmission privacy
Systems and methods are presented herein to achieve data privacy in the optical realm such that electronic encryption bottlenecks are removed, potentially increasing data transmission speeds to the...
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7853149 |
Transmitter frequency peaking for optical fiber channels
Frequency peaking is used in the transmitter to improve link performance. In one example, frequency peaking improves the PIED or TWDP. The frequency peaking can result in pulse shapes that have...
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7844181 |
Simple fibre channel speed negotiation across transport
A method for negotiating speed between a Fiber Channel (FC) local client and a remote FC client across a DWDM network is provided. A transmission speed of the local FC client at a local ingress...
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7831145 |
Passive optical network system and method for protecting the services of the same
The present disclosure provides a passive optical network (PON) system and a method for protecting the service of the system for service recovery and fault locating in case of a failure of the...
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7831147 |
Fiber and wire communication system
This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives...
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7796888 |
Secure upstream transmission in passive optical networks
A method and system for ensuring confidentiality of signal transmission in a point-to-multipoint data transmission network like Ethernet passive optical network, including at least one hub, at...
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7783201 |
Optical repeater device and optical transmission system
An optical repeater device of the present invention comprises: a preamble compensating circuit 53, for taking out a normal data signal from burst signals propagating through a communication...
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7783196 |
Fiber and wire communication system
This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives...
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7760734 |
TDMA passive optical network OLT system for broadcast service
Provided is a TDMA (time division multiple access) PON (passive optical network) OLT (optical line terminal) system for a broadcast service, including packet processor determining information...
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7751709 |
Method and system for interconnecting end systems over an optical network
Methods and systems for using a wavelength as an address in an optical network are disclosed. In particular, methods for selecting a wavelength for a particular node in an optical network,...
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7738167 |
Reflective semiconductor optical amplifier (RSOA), RSOA module having the same, and passive optical network using the same
A Reflective Semiconductor Optical Amplifier (RSOA) for compensating for light loss in an optical link, an RSOA module for improving polarization dependency using the RSOA, and a Passive Optical...
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7738490 |
Method and system for fairly allocating differentiated bandwidth based on shared multicast traffic in time division multiplexed passive optical network
A method for fairly allocating a differentiated bandwidth based on shared multicast traffic in transmission of downstream traffic in a Time Division Multiplexed-Passive Optical Network (TDM-PON) is...
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7734179 |
Fiber/wired communication system
A communication system between head-ends and end-users is provided which expands bandwidth and reliability. A concentrator receives communication signals from a head-end and forwards the received...
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7729389 |
8/10 and 64/66 aggregation
A network interface includes N input lanes that receive data symbols and idle symbols. A substitutor module periodically replaces an idle symbol on each input lane with a corresponding alignment...
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7702245 |
Spread spectrum in-band utility communication channel
Utility data modulation is superimposed on a payload data modulator optical signal by exploiting spread spectrum techniques by virtue of one embodiment of the present invention. Utility data...
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7680415 |
Optical code division multiplexing transmission and reception method and optical code division multiplexing transceiver
An object of the present invention is to provide an OCDM transceiver with which the reduction amount of the intensity of the correlation waveform signal is smaller than that of a conventional...
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7672585 |
Optical switch system
Each of a plurality of semiconductor optical amplifiers operates as an optical gate switch and selects an optical signal indicated by a gate control signal from an optical gate switch control unit....
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7653312 |
Multiple bit rate optical communication method, optical network unit and optical line terminal
The present invention is a method of transmitting data of different bit rates in a simple manner and, if positive minimal multiples whose multiple operation values on the bit time lengths 1/Ai for...
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7630640 |
Bidirectional time division multiplexing optical communication system
An optical communication system which constructs, at low cost, a network that uses Time Division Multiplexing in at least one direction of the communication. The optical communication system...
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7620328 |
Multi-wavelength optical CDMA with differential encoding and bipolar differential detection
The present invention relates generally to an optical CDMA transmission system and method employing differential optical encoding and bipolar decoding. Differential encoding and bipolar decoding...
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7613395 |
Optical network termination apparatus with shared components and passive optical network system comprising same
A transmission system for a passive optical network comprises a shared optical transmission apparatus, a shared electrical interface apparatus and a plurality of transmission convergence...
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7609967 |
Method and apparatus for automatically upgrading passive optical networks (PONs)
An apparatus automatically maintains bi-directional communication between an optical network unit (ONU) and a central office (CO) in a passive optical network (PON) when the CO changes from a first...
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7609966 |
Method and system for time-sharing transmission frequencies in an optical network
An optical communication system includes an optical ring that couples a hub node and a plurality of local nodes. The hub node is capable of receiving traffic over the optical ring from the...
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7599624 |
System and method for switching channels using tunable laser diodes
A channel switching function is added to a wavelength division multiplexing passive optical network (WDM-PON) system, which is an access optical network system, and the potential transmission rate...
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7593638 |
Secure upstream transmission in passive optical networks
A method and system for ensuring confidentiality of signal transmission in a point-to-multi point data transmission network like Ether net passive optical network, including at least one hub, at...
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7574139 |
Carrier-suppressed optical time domain multiplexing
A method and an apparatus for implementing carrier suppressed data format on conventional OTDM modules is provided. Adaptive phase shifting of optical signals traversing one of the tributaries of...
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7508802 |
Method of controlling wireless local network medium access using pseudo-time division multiplexing
The present invention provides a method of controlling Wireless LAN (WLAN) medium access using Pseudo-Time Division Multiplexing (PTDM) to improve the Quality of Service (QoS) of the WLAN. The...
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7450551 |
Multicast transmission method in GEM mode in Gigabit-capable passive optical network and method of processing frame
A multicast transmission method in GEM mode in Gigabit-capable passive optical network and a method of processing frames. The multicast transmission method includes the steps of: (a) setting a...
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7450850 |
Fiber and wire communication system
This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives...
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