http://www.freshpatents.com/Optical-communications-dtnewntc398.php USPTO Class 398 - Optical communications en-us Thu, 24 Jul 2008 15:04:56 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Wire-emulation-through-a-network-for-propagation-of-failure-information-dt20080717ptan20080170852.php Thu, 24 Jul 2008 15:04:56 -0700 An optical transponder, system, method, and program wherein the transponder monitors for at least one of a failure or an alarm signal. In response to detecting a failure or alarm signal (communication), the transponder performs at least one of a predetermined action and propagating an alarm communication to a network,... http://www.freshpatents.com/System-for-low-noise-aggregation-in-docsis-contention-slots-in-a-shared-upstream-receiver-environment-dt20080717ptan20080170853.php Thu, 24 Jul 2008 15:04:56 -0700 A cable modem termination system is disclosed with flexible mapping of upstreams to downstreams and flexible mapping of downstreams to optical nodes and optical nodes to upstream receivers and the ability to add singe upstreams or downstreams as needed for load balancing. Multiple downstreams can share the same upstream. Multiple... http://www.freshpatents.com/Method-of-identifying-domain-to-domain-link-based-on-automatically-switched-optical-network-dt20080717ptan20080170854.php Thu, 24 Jul 2008 15:04:56 -0700 A method of identifying domain-to-domain link based on ASON (Automatically Switched Optical Network), including: storing, by a node in ASON, a route control ID of an abstract node each high layer network; obtaining, by the node, the route control ID of the abstract node in each network layer stored in... http://www.freshpatents.com/Optical-switch-apparatus-and-optical-switching-system-dt20080717ptan20080170855.php Thu, 24 Jul 2008 15:04:56 -0700 An optical switching system having a transmission node. The transmission node includes a bit pattern processing unit for processing a bit pattern of transmitted data to stabilize optical power of a frame signal light to be monitored and a frame signal light producing unit for producing frame signal light to... http://www.freshpatents.com/System-for-utilizing-wavelength-reachability-and-wavelength-occupation-status-information-to-describe-cross-connection-capabilities-in-optical-networks-dt20080717ptan20080170856.php Thu, 24 Jul 2008 15:04:56 -0700 A system for communicating cross-connection information within an optical network by use of wavelength information is provided. Cross-connection information in Wavelength Division Multiplexing (WDM) devices is abstracted, to produce wavelength reachability information and wavelength occupation status information for each node within the optical network. Cross-connection information is distributed from one... http://www.freshpatents.com/System-and-method-for-establishing-protected-connections-dt20080717ptan20080170857.php Thu, 24 Jul 2008 15:04:56 -0700 A method for establishing protected connections includes determining a primary path to a first node through a first layer of a multi-layer network. The primary path comprises a plurality of first layer links. At least one link of the plurality of first layer links comprises at least one second layer... http://www.freshpatents.com/Optical-pulse-source-for-use-in-broadband-photonic-communication-systems-dt20080717ptan20080170858.php Thu, 24 Jul 2008 15:04:56 -0700 The invention relates to an apparatus and method for providing an improved optical pulse source suitable for use in high-speed optical communication systems. The optical pulse source can output spectrally pure pulses in a high capacity optical communication system. An optical pulse source in accordance with the invention comprises; at... http://www.freshpatents.com/System-and-method-for-multi-rate-high-sensitivity-clock-and-data-recovery-with-adjustable-decision-threshold-rf-input-and-optical-to-electrical-conversion-dt20080717ptan20080170859.php Thu, 24 Jul 2008 15:04:56 -0700 The present invention provides a system and method for multi-rate, high-sensitivity CDR, including a variable/adjustable decision threshold, RF input clock recovery, and OE conversion feature. The system includes an optical input connector, CDR circuit, decision threshold circuit, internal power supply, OE converter, external electrical output, and multiple clock outputs. The... http://www.freshpatents.com/Method-for-transferring-data-packets-dt20080717ptan20080170860.php Thu, 24 Jul 2008 15:04:56 -0700 Different transfer time periods are allocated to a network node for a connection, according to different quality classes. During the allocated transfer time period, the network node can transfer data bursts and data packets on the fly. The data packet is no longer transferred when the transfer capacity is required... http://www.freshpatents.com/Method-and-system-for-compensating-for-optical-dispersion-in-an-optical-signal-in-a-hybrid-optical-network-dt20080717ptan20080170861.php Thu, 24 Jul 2008 15:04:56 -0700 A system and method for dispersion compensation of an optical signal in a hybrid network includes generating optical traffic in a first set of one or more channels, wherein the traffic in the first set of channels is modulated using a first modulation technique. Optical traffic is generated in a... http://www.freshpatents.com/Monitoring-polarization-of-a-signal-communicated-according-to-polarization-multiplexing-dt20080717ptan20080170862.php Thu, 24 Jul 2008 15:04:56 -0700 A system operable to monitor a polarization controller includes the polarization controller and a polarization controller monitor. The polarization controller polarizes the signal to yield a polarized signal comprising a first signal component and a second signal component, where the first signal component is orthogonally polarized with respect to the... http://www.freshpatents.com/Apparatus-and-method-for-visible-light-communication-dt20080717ptan20080170863.php Thu, 24 Jul 2008 15:04:56 -0700 Disclosed are an apparatus and a method for visible light communication, which apparatus uses an illuminator equipped with a plurality of light sources, so that the apparatus can be used for illumination, as well as for visible light communication. The visible light communication apparatus includes an illuminator for generation of... http://www.freshpatents.com/Optical-device-and-optical-modulation-method-dt20080717ptan20080170864.php Thu, 24 Jul 2008 15:04:56 -0700 The disclosed device and method include varying phases of two data signals at a first predetermined frequency, performing multi-level phase modulation of a light based on the two data signals whose phases are varied at the first predetermined frequency, extracting a component having the first predetermined frequency from an optical... http://www.freshpatents.com/Method-for-processing-overhead-of-optical-network-and-device-thereof-dt20080717ptan20080170865.php Thu, 24 Jul 2008 15:04:56 -0700 A method for overhead processing of optical network and device thereof are disclosed, the device includes: an overhead memory, an overhead processor, and an overhead processor control module. The overhead processor control module is used for controlling the operation of the overhead memory and the overhead processor. The method includes:...