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Optical Communications > Multiplex > Optical Local Area Network (lan)

Optical Local Area Network (lan)

Optical Local Area Network (lan) patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

04/03/14 - 20140093242 - Security in multiwavelength optical networks
An optical network including at least one optical network node that receives an optical signal for either transmission or reception. The optical network node analyzes the optical signal and applies communication protocols necessary for optical transmission or reception of the optical signal to or from the optical network. At least...

04/03/14 - 20140093243 - Method and device for sending data in passive optical network
Embodiments of the present invention provide a method and a device for sending data in a passive optical network. A central office processing device records a downstream superframe number of a downstream data frame. A loop delay between the central office processing device and a terminal processing device is obtained...

03/27/14 - 20140086583 - Apparatus and method for transmitting lan signals over a transport system
A computer system and method for transmitting LAN signals over transport systems. LAN signals are generated in any client LAN compliant interface. A transceiver receives the client LAN signal in the LAN format. The client LAN signals are not converted to a SONET transmission format at any time before reaching...

03/27/14 - 20140086584 - Communication system, station-side optical line terminating apparatus, user-side optical line terminating apparatus, control apparatus, and communication method
A communication system in which a plurality of user-side optical line terminating apparatuses (Optical Network Units, hereinafter referred to as ONUs) and station-side optical line terminating apparatus (Optical Line Terminal, hereinafter referred to as OLT) are connected with a common optical fiber. The ONUs each includes: an ONU side optical...

02/27/14 - 20140056585 - Next generation optical access network with centralized digital olt
An optical access network with centralized digital optical line termination OLT including an optical line termination unit having a digital transmitter and a coherent receiver for downstream signal transmitting and upstream signal receiving, and at least one optical network unit ONU with transceiver functions for communicating with the OLT over...

01/30/14 - 20140029945 - Polarization stabilization scheme for un-cooled self-tuning cavity for colorless ultra broadband pon
An optical transmitter for a WDM (Wavelength Division Multiplexing) passive optical network (PON) and a WDM PON comprising such an optical transmitter are disclosed. An optical transmitter comprises first mirror and second mirrors at first end and second ends of a cavity; an optical amplifier positioned within the cavity upstream...

01/30/14 - 20140029946 - Office-side line concentration device, access control device, and computer program therefor
There is provided an office-side line concentration device that accommodates a plurality of passive optical networks, including a plurality of receiving means connected to each of the plurality of passive optical networks, and interface means for controlling a transmission timing of user data from the plurality of passive optical networks...

01/23/14 - 20140023365 - Systems and methods for subsea optical can buses
Messages on controller area net work (CAN) buses are communicated over subsea optical links. An adaptor couples a CAN bus to an optical link. The adaptor detects a direction of transmission, that is, whether a signal began on the CAN bus coupled to the adaptor or on the optical link...

01/23/14 - 20140023366 - Dpoe system and service auto-configuration method and network based thereon
A DPOE system and a service auto-configuration method and network based on that system are provided, wherein, the DPOE system includes an acquisition unit, an analyzing unit and a configuration unit; the service auto-configuration network includes a DPOE system, a back-office management system and an ONU; the service auto-configuration method...

01/23/14 - 20140023367 - Burst transmission method, and receiver resetting method and apparatus in a passive optical network
A burst transmission method and a receiver resetting method and apparatus in a Passive Optical Network (PON) are provided. A burst receiver resetting method in a PON includes: receiving a preamble sequence and synchronizing data; after synchronizing the data, continuing to receive the data, and matching a Burst Terminator (BT);...

01/09/14 - 20140010537 - Epon/epoc time division duplex (tdd) mode
Embodiments enable a half-duplex Time Division Duplex (TDD) mode for Ethernet Passive Optical Network (EPON) or EPON over Coax (EPoC) networks. Specifically, embodiments provide systems and methods for enabling an Optical Line Terminal (OLT)/Coaxial Line Terminal (CLT) to share a physical medium spectrum in time with the Optical Network Units...

01/02/14 - 20140003812 - Optical bandwidth manager
A system may receive user input that identifies network entities in an optical network. The system may provide a user interface that displays a representation of the network entities and of optical link types configured to carry optical signals among the network entities. The system may receive user input that...

12/05/13 - 20130322880 - Clock and data recovery unit and power control method therefor and pon system
In the present invention, wasted power consumption caused when a clock and data recovery unit in an optical network unit in a PON system is activated from a power-saving state is reduced and rapid, secure communication is performed. A clock and data recovery unit includes a phase-locked loop that can...

11/28/13 - 20130315592 - Method for configuring end-to-end lower order odu network trails across optical transport network
The disclosure relates to a method of configuring end-to-end ODUj (lower order ODU) network trails across OTN (Optical Transport Network), in which the tributary port number (TPN) of the lower order ODUj inside higher order ODUk is specified. The time-slot value associated with the TPN is not to be specified...

11/07/13 - 20130294774 - Optical line terminal, optical network unit and passive optical network system
The invention discloses are an optical line terminal, an optical network unit, a passive optical network system, an upstream bandwidth allocation method and a rate adaptation method. The OLT comprises: an optical module, a clock and data recovery module, a media access control chip and a control module, wherein, the...

10/24/13 - 20130279909 - Control and provisioning in a data center network with at least one central controller
Data center networks that employ optical network topologies and optical nodes to efficiently allocate bandwidth within the data center networks, while reducing the physical interconnectivity requirements of the data center networks. Such data center networks employ at least one central controller for controlling and provisioning computing resources within the data...

10/17/13 - 20130272703 - Method and apparatus of delivering upstream data in ethernet passive optical network over coaxial network
An apparatus for interconnecting a fiber-optic network and a coax network comprising a coax line terminal (CLT) configured to couple to an optical line terminal (OLT) at the fiber-optic network and a plurality of coax network units (CNUs) at the coax network and to cache data received from the CNUs...

10/03/13 - 20130259478 - Optical transmitter, optical receiver, and optical transmission method
There is provided an optical transmitter including: a demultiplexer configured to divide a data frame of a transmission signal into subframes with a predetermined length so as to form the subframes in a plurality of signal lanes; an index generator configured to generate an index for indicating an order of...

09/26/13 - 20130251368 - Wavelength reassignment in optical networks
An optical network for reassigning a carrier wavelength of an optical signal may include first and second optical nodes. The first optical node may be configured to transmit an optical signal along an optical path. The first optical node may also be configured to tune a carrier wavelength of the...

09/05/13 - 20130230323 - Method and apparatus for transporting deterministic traffic in a gigabit passive optical network
A system and method are disclosed for transporting deterministic traffic in a gigabit passive optical network. A system that incorporates teachings of the present disclosure may include, for example, an Optical Line Termination (OLT) for exchanging data traffic in a Gigabit Passive Optical Network (GPON) having a controller programmed to...

08/29/13 - 20130223840 - Resource allocation in pon networks via wave-front multiplexing and de-multiplexing
A data communication system comprises a wave-front multiplexer configured to wave-front multiplex first electronic signals into second electronic signals, an electronic-to-optical converter configured to convert a third electronic signal carrying information associated with said second electronic signals into a first optical signal; an optical transferring module configured to split said...

08/15/13 - 20130209103 - Method and apparatus for dynamically allocating bandwidth to a client in a passive optical network
Embodiments of the present disclosure provide methods for allocating bandwidth to a plurality of traffic containers of a passive optical network. The method comprises receiving upstream data from a plurality of traffic containers of the passive optical network and passing the upstream data to a traffic manager. The method further...

08/15/13 - 20130209104 - Passive optical network processor with a programmable data path
A method and apparatus embodying some aspects of a packet processing communication system. The packet processing communication apparatus comprises a packet processor and a microprocessor. The packet processor is configured to process packets belonging to a certain flow through a plurality of processing stages of a programmable data-path. The microprocessor...

08/08/13 - 20130202300 - Optical line terminal (olt) optical module adapted to perform optical unit network (onu) functionality
An optical line terminal (OTL) operable in a passive optical network (PON) including a plurality of optical network units (ONUs). The OLT comprises an electrical module for generating continuous downstream signal and processing received upstream burst signals according to a communication protocol of the PON; an optical module for transmitting...

08/08/13 - 20130202301 - Illumination system
The present invention allows flexible reinstallation of a region capable of communicating with a wireless LAN and a master and a repeater of a wireless LAN in conformity with a site to install an illumination system. Therefore, the present invention is an illumination system including an illumination unit using a...

07/25/13 - 20130188951 - Optically matched laser array coupling assembly for coupling laser array to arrayed waveguide grating
A laser array optical coupling assembly may be used to couple a laser array to an arrayed waveguide grating (AWG), for example, in an optical transmitter in a wavelength division multiplexed (WDM) optical communication system. The laser array optical coupling assembly may include an optical fiber tip array with polished...

07/04/13 - 20130170834 - Hybrid passive optical network system
Provided is a hybrid passive optical network (PON) system. The hybrid PON system of wavelength division multiplexing (WDM)/time division multiplexing (TDM) may include an optical line terminal (OLT) and an optical network unit (ONU). The OLT and the ONU may transmit a signal based on wavelength reuse using a seed...

06/20/13 - 20130156430 - Device for using a broadband network at a customer's premises, method of operating such a device and broadband network system utilizing such a device
The invention relates to a piece of customer premises equipment (CPE) comprising a physical connector (21) for linking to a broadband network and a distributing structure (NTU, 24) that is connected to said physical connector for distributing broadband elements over one or more service modules (RGUs A, B, C, D)...

06/20/13 - 20130156431 - System and method for multiple sub-octave band transmissions
A system and method for enabling multiple sub-octave band transmissions with reduced second order distortions is provided. For this method, first and second sub-octave bands are established. The second sub-octave band is spaced from the first sub-octave band by a non-transmission band. Digital signals are modulated onto RF carrier frequencies...

05/16/13 - 20130121696 - Apparatus and method for photonic networks
A node for use in a photonic network comprises an optical to electrical interface for receiving a traffic signal and an electrical to optical interface for outputting a traffic signal. A processor is adapted, in response to receiving a control plane message, to reconfigure at least one feature of an...

05/16/13 - 20130121697 - Gigabit passive optical network transmission convergence extension for next generation access
An apparatus comprising a data framer configured to frame a data stream into a plurality of frames each comprising a plurality of fields sized to align the frames with a word boundary greater than or equal to about four bytes long, and an optical transmitter coupled to the data framer...

05/09/13 - 20130114959 - Method and apparatus for transmitting data in optical transport network
A method of transmitting data in an optical transport network is provided. The method comprises generating an optical transmission unit frame including an in-band area including a first area to which information data is allocated and a second area to which the information data is not allocated and an out-band...

05/02/13 - 20130108268 - Super optical channel transport unit signal supported by multiple wavelengths
A node is configured to receive first optical channel data unit (ODU) signals; encapsulate one or more of the first ODU signals into a second ODU signal; encapsulate the second ODU signal into an optical channel transport unit (OTU) signal; and transmit the OTU signal on one or more optical...

05/02/13 - 20130108269 - Apparatus and method for controlling vpn service
An apparatus and method of controlling virtual private network (VPN) services are provided. The apparatus according to an embodiment of the present invention includes a profile definition unit that defines a service profile required for VPN setting between edge devices connected to a carrier ethernet backbone network via an access...

04/25/13 - 20130101291 - Non-overlapping secured topologies in a distributed network fabric
Networks comprising multiple non-overlapping communication topologies are presented. The networks can include a fabric of interconnected network nodes capable of providing multiple communication paths among edge devices. A topology manager constructs communication topologies according to restriction criteria based on required security levels (e.g., top secret, secret, unclassified, etc.). Established topologies...

04/18/13 - 20130094857 - Remote node and network architecture and data transmission method for a fiber-optic network, especially for low bit-rate data transmission
A remote node architecture for a fiber-optic network, especially for low bit-rate data transmission, the fiber-optic network architecture comprises a central node and a plurality of remote nodes serially connected to each other or to the central node, respectively. The central node and the remote nodes are capable of communicating...

04/11/13 - 20130089328 - Methods and apparatus for extending mac control messages in epon
One embodiment provides a media access control (MAC) module facilitating operations of an Ethernet passive optical network (EPON). The MAC module includes a frame formatter configured to generate a MAC control frame. The generated MAC control frame includes at least one of: an organizationally unique identifier (OUI) field, an QUI-specific...

03/28/13 - 20130077972 - Sleep control for energy efficiency in ethernet passive optical networks
A method sets certain downstream traffic scheduling rules at an optical line terminal OLT and certain sleep control rules at optical network units ONUs. Both downstream traffic scheduling rules and sleep control rules are common information owned by both the OLT and ONUs. The method sets the traffic scheduling rules...

03/21/13 - 20130071118 - Communications network apparatus and line coding method
Methods and apparatus for line coding in a communications network are described. According to one embodiment of the invention, downstream communications traffic bits are received and mapped into downstream bit positions of a transmission structure. A pre-selected bit in each upstream bit positions of the transmission structure is provided to...

03/14/13 - 20130064544 - Control of token holding in multi-token optical network
A node (260, 50) for a multi-token optical communications network has optical channels between the node and other nodes, each channel having a token (T1, T2, T3), passed between nodes, to indicate that a corresponding optical channel is available for transmission during a token holding time. The node has a...

03/07/13 - 20130058651 - Data processing of an optical network element
A method for data processing of an optical network element is provided, wherein a configuration information is received at the optical network element and a light signal is adjusted to a wavelength or wavelength range indicated by said configuration information; wherein an incoming optical signal is demodulated via the light...

03/07/13 - 20130058652 - Optical line termination device allowing the implementation of an ofdm modulation technique
A line termination device for an optical network able to receive at least one optical signal at least a part of which is polarized according to a particular axis of polarization, said device comprising: means for modifying the axis of polarization of the part of the optical signal, means for...

03/07/13 - 20130058653 - Optical network unit, method for processing data in an optical network and communication system
An optical network unit has a tunable laser. The tunable laser is tunable such that a point-to-point connection to another optical network unit is established via an optical fiber. There is also provided a method for processing data in an optical network and a corresponding communication system. The tunable laser...

02/21/13 - 20130045011 - Method and system for upstream bandwidth allocation in a passive optical network
A method for upstream bandwidth allocation in a passive optical network is provided by the disclosure. The method includes the following steps: an Optical Line Terminal (OLT) allocates an upstream bandwidth for an Optical Network Unit (ONU) through an upstream bandwidth mapping (US BWmap) domain, wherein the total length B...

02/14/13 - 20130039659 - Method, apparatus and system for transmitting sdh/sonet section overhead bytes
The present invention relates to the field of communications technologies and discloses a method, an apparatus and a system for transmitting SDH/Sonet section overhead bytes, which reduce a burden of an intermediate node of a PTN network in a process of transmitting DCC bytes in the PTN network. In the...

01/31/13 - 20130028601 - Video over ethernet bandwidth optimization
Methods and apparatuses for controlling the flow of video over Ethernet (VoE) traffic in a network are disclosed. The method can include originating the VoE traffic from an add node in the network. A first control signal can be received from a first drop node in the network containing a...

01/31/13 - 20130028602 - Method and system for establishing end-to-end service and optical transport network
A method for establishing an end-to-end service is provided in the present invention, which includes: acquiring link information in a network and multi-stage multiplexing capability constraint information supported by gateway network elements; when an end-to-end path computation request is received, according to the link information and the multi-stage multiplexing capability...

01/17/13 - 20130016971 - Wdm optical system and method including multi-channel transmitters with filtered output for channel wavelength selection
A wavelength division multiplexed (WDM) optical system generally includes multi-channel transmitters that transmit optical signals on multiple channel wavelengths in the WDM system. The output of the multi-channel transmitters is filtered to select a unique channel wavelength associated with each of the respective transmitters for multiplexing and transmission in the...

12/27/12 - 20120328293 - Remote node and network architecture and data transmission method for a fiber-optic network, especially for low bit-rate data transmission
The invention relates to a remote node architecture for a fiber-optic network, especially for low bit-rate data transmission, the fiber-optic network comprising a central node and a plurality of remote nodes serially connected to each other or to the central node, respectively, the central node and the remote node being...

12/13/12 - 20120315040 - Method for fast wavelength division multiplexing (wdm) passive optical network (pon) initialization in heterogeneous networks
A method provides advertisements to optical network units (ONUs) by an optical line terminal (OLT), wherein the advertisements enable the ONUs to identify free channels from a plurality of wavelength-division multiplexing (WDM) channels in a passive optical network (PON). The method includes: transmitting from the OLT to the ONUs an...

12/13/12 - 20120315041 - Optical network terminal
Disclosed herein is an optical network terminal. The Optical Network Terminal (ONT) includes a laser diode for generating an optical signal to be transmitted to the OLT. A laser diode driving unit supplies driving current required for light emission of the laser diode. A driving current detection unit detects the...