Patent application number | Description | Published |
20120229890 | Optical Devices and Method of Counting Optical Pulses - An optical device comprises an optical device stage, which comprises an optical input, an optical AND gate, an optical flip-flop and an optical output. The optical input is arranged to receive an optical input pulse at an input wavelength. The optical AND gate comprises a first input arranged to receive a part of said optical input pulse, a second input arranged to receive at least a part of a flip-flop optical output signal, and an output. The optical AND gate is arranged to generate an AND gate optical output pulse dependent on said flip-flop optical output signal. The optical flip-flop comprises a first input arranged to receive a further part of said optical input pulse, a second input arranged to receive a said AND gate optical output pulse, and an output. The optical flip-flop is arranged to generate said flip-flop output signal at a flip-flop output wavelength. At least a part of the flip-flop output signal is provided to said output. | 09-13-2012 |
20120250580 | Optical Transport Switching Node with Framer - A switching node for an optical communication system has an electrical switch, coupled to switch electrical signals from an input converter to a selected one of the outputs, and has a framer for reading or writing optical transport overhead information from or to the electrical signals. A bypass path is provided so that at least some of the signals being switched can bypass the framer. This can enable each node to be more efficient or handle more signals, since the framer no longer has to process all the signals. A reduction in power consumption can result. A method of configuring the switching node can involve a management system receiving information about the network, determining a new wavelength routing configuration and sending control signals to the node to configure the switches and control which signals use the bypass path. | 10-04-2012 |
20120328292 | ELECTRICAL SIGNAL PACKET ROUTING - A packet switch | 12-27-2012 |
20130070754 | REDUCING NETWORK POWER CONSUMPTION - Path computation involves determining ( | 03-21-2013 |
20140023377 | FREE SPACE OPTICAL COMMUNICATIONS LINK NODE, NETWORK AND METHOD OF TRANSMITTING TRAFFIC - A free space optical communications link node | 01-23-2014 |
20140126904 | ADD AND DROP SWITCH/AGGREGATOR FOR OPTICAL COMMUNICATIONS NETWORKS - An apparatus for an optical communications network comprising a demultiplexer, a plurality of add/drop optical switches for adding and dropping wavelength channels. The add/drop optical switches arranged in a matrix with a number of rows corresponding to a number of output ports of the demultiplexer and a number of columns corresponding to a number of transponders. Each drop optical switch has an express input port associated with an output port of the demultiplexer, a drop output port associated with an individual transponder, and an express output port. Each add optical switch has an express input port, an add input port associated with an individual transponder, and an express output port. The apparatus also comprises a multiplexer with a plurality of input ports associated with express output ports of the add/drop optical switches. | 05-08-2014 |
20150104194 | PHASE SHIFT KEYING OPTICAL MODULATION APPARATUS AND METHOD OF ENCODING A SYMBOL ONTO AN OPTICAL CARRIER SIGNAL - Phase shift keying optical modulation apparatus comprising optical phase shifting apparatus and an optical modulator. The optical phase shifting apparatus is arranged to receive an optical carrier signal and is arranged to selectively apply a preselected optical phase shift to the optical carrier signal in dependence on a symbol of a 2N-level phase shift keying modulation format to be encoded onto the optical signal. The optical modulator is arranged to receive the optical carrier signal from the optical phase shifting apparatus and is arranged to apply a phase modulation to the optical carrier signal in dependence on the symbol, to thereby encode the symbol onto the optical carrier signal. The phase modulation is a phase-modulation of an N-level phase shift keying modulation format. | 04-16-2015 |
20150215066 | OPTICAL ROUTING APPARATUS AND METHOD - Optical add and drop switch and aggregator apparatus comprising: N first wavelength selective routing apparatus each configured to split a wavelength multiplexed input signal into L sub-signals; demultiplexers each configured to demultiplex a respective sub-signal into K optical signals; output ports each configured to output a respective output optical signal; add ports configured to receive optical signals to be added; M second wavelength selective routing apparatus each having X outputs, each said apparatus being configured to receive optical signals from a respective add port and to route each received optical signal to a respective one of its outputs; drop ports configured to output optical signals to be dropped; and a switch matrix coupled between the demultiplexers, the output ports, the drop ports and the second wavelength selective routing apparatus, the switch matrix comprising a plurality of optical switches arranged in XM columns and KLN rows. | 07-30-2015 |
Patent application number | Description | Published |
20120232886 | COMPUTER NETWORK, COMPUTER-IMPLEMENTED METHOD, COMPUTER PROGRAM PRODUCT, CLIENT, AND SERVER FOR NATURAL LANGUAGE-BASED CONTROL OF A DIGITAL NETWORK - The present application relates to a computer network, a computer-implemented method, a computer program product, a client, and a server for natural language-based control of a digital network. In one aspect, the computer network for natural language-based control of a digital network may comprise: a digital network operable to provide sharing of access to a network between a plurality of devices connected in the digital network; a client installed in the digital network and operable to provide a unified natural language interface to a user to control the digital network using natural language; a server connected to the client over the network and operable to process a user request of the user performed through the unified natural language interface; and one or more software agents operable to execute at least one action on at least one of the plurality of devices based on the processed user request. | 09-13-2012 |
20140236812 | COMMUNICATIONS NETWORK, COMPUTER SYSTEM, COMPUTER-IMPLEMENTED METHOD, AND COMPUTER PROGRAM PRODUCT FOR PROVIDING A FEMTOCELL-BASED INFRASTRUCTURE FOR MOBILE ELECTRONIC PAYMENT - In one aspect, the present application is directed to a communications network, a computer system, a computer-implemented method, and a computer program product for providing a femtocell-based infrastructure for mobile electronic payment. In an aspect, the communications network may include a mobile operator network; a local area in the mobile operator network, wherein the local area is under coverage of at least one femtocell; and a femtocell-based payment system connected to the mobile operator network, wherein the femtocell-based payment system is operable to provide mobile electronic payment via a user device recognized by the at least one femtocell within the local area and notified by the femtocell-based payment system. | 08-21-2014 |