Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for multi-banked victim cache with dual datapath. An example cache system includes a storage element that includes banks operable to store data, ports operable to receive memory operations in parallel, wherein each of the memory operations has a respective address, and a plurality of comparators coupled such that each of the comparators is coupled to a respective port of the ports and a respective bank of the banks and is operable to determine whether a respective address of a respective memory operation received by the respective port corresponds to the data stored in the respective bank.

Abstract: The present disclosure relates to a method of testing light-fidelity (LiFi) coverage. A mobile light-fidelity tester is moved in a test area in which at least one indoor light-fidelity access point is located while performing coverage tests of the at least one indoor light-fidelity access point. Further, a coverage report of the at least one indoor light-fidelity access point is returned. In addition, a test system is described.

Abstract: Methods and systems for providing intelligent power distribution. A distribution point unit is connected to a plurality of user units in a telecommunications system. A loss of power to the distribution point unit is detected. It is determined that at least one user unit has backup power. Based on a determination that at least one user unit has backup power, a power mode for the distribution point unit is selected. The power mode is implemented on the distribution point unit.

Abstract: This invention relates to a power supply system for an optical wireless communication system where a modem (212) is connected to a plurality of transceivers (11). The underlying idea being that the transceivers (11) are powering the modem (212), rather than the modem (212) powering the transceivers (11). To achieve this, a power combiner is provided that can receive power from the transceivers (11). The transceivers (11) power down when no endpoint is detected and use a subset of emitters, in which case the modem (212) can also be switched to a lower power mode.

Abstract: Apparatus having at least one reflective surface configured to reflect electromagnetic waves, wherein a reflective response of at least one portion of the reflective surface with respect to the electromagnetic waves is electronically controllable, wherein the apparatus is configured to at least temporarily control the reflective response of the at least one portion of the reflective surface.

Abstract: A filtering-based power supply apparatus used in a power sourcing equipment (PSE) includes a power supply control circuit and an adaptive filter circuit. The power supply control circuit includes a power supply channel and a detection module. The power supply channel includes a control switch configured to control on and off of the power supply channel. The detection module is configured to send a detection signal to the power supply channel to detect whether a peer device connected to the power supply channel is a valid powered device. The control switch is turned off in a detection process of the power supply channel. The adaptive filter circuit is configured to filter noise in the detection signal in the detection process of the power supply channel.

Abstract: An optical communication equipment performs optical communication between a first apparatus and a second apparatus. The optical communication equipment includes a monitoring section configured to monitor a light amount during optical communication, and a control device configured to output predetermined information when the light amount is less than a first threshold value and shut off communication between the first and second apparatuses when the light amount is less than a second threshold value lower than the first threshold value.

Abstract: A sensing system including: a sensor located in an external environment, including: an electrically powered sensor element sensing an environment variable and converting the sensing to a corresponding analog electrical value measure; an electrically powered sensor value conversion system connected to the electrically powered sensor and converting the analog electrical value measure to a digital measure, in addition to encoding the digital measure with sensor identification information; a transducer element for sending the sensed data information over an optical conduit for inputting an optical power signal and outputting optical sensed data information; a coupler splitting a first portion of the optical power signal to an energy storage system; and an energy storage system converting the first portion of the optical power signal into corresponding electrical energy and storing it for on demand usage; said electrically powered sensor value conversion system being supplied with electrical power from said energy

Abstract: A power over fiber system includes a power sourcing equipment, a powered device, an optical fiber cable, a power storage and a controller. The power sourcing equipment includes a semiconductor laser that oscillates with electric power, thereby outputting feed light. The powered device includes a photoelectric conversion element that converts the feed light into electric power. The optical fiber cable transmits the feed light from the power sourcing equipment to the powered device. The power storage stores the electric power. The controller performs a process of lowering an output level of the feed light in response to a value related to an electric power amount of the electric power stored in the power storage being equal to or higher than a predetermined threshold value, and performs a process of raising the output level in response to the value being lower than the predetermined threshold value.

Abstract: A powered device includes a photoelectric conversion element, a thermoelectric conversion element and a first power line. The photoelectric conversion element receives and converts feed light into electric power. The thermoelectric conversion element is disposed such that heat can be conducted thereto from the photoelectric conversion element. The first power line transmits, to a load, electric power obtained by conversion by the thermoelectric conversion element.

Abstract: A connection manner identification method includes power sourcing equipment separately sending load adjustment indications to powered devices by using data ports, where each load adjustment indication in the load adjustment indications indicates a corresponding powered device to adjust a load. The powered devices are separately connected to power supply ports of the power sourcing equipment by using power supply cables, and the powered devices are separately connected to the data ports of the power sourcing equipment by using data cables. The power sourcing equipment obtains output power changes of the power supply ports caused by load adjustment of the powered devices, and the power sourcing equipment determines, based on the output power changes, a first data port and a power supply port that are connected to a same powered device in the powered devices.

Abstract: A real-time digital sparkle filter for processing high-speed analog to digital converter (ADC) data is disclosed. The real-time digital sparkle filter for processing a continuous stream of digital data, comprising a high-speed data interface, a digital sparkle filter, and a buffer sequencer. The high-speed data interface receives sample data from an analog to digital converter (ADC). The digital sparkle filter operates continuously on the sample data without losing any samples. The digital sparkle filter comprises one or more logic implemented using field-programmable gate arrays (FPGAs) configured to continuously process the data without degrading the signal content. The buffer sequencer comprises an input buffer and an output buffer. The input buffer receives the digital data stream data using a first in first out buffer mechanism. The output buffer receives the processed output of the sparkle filter, thereby eliminating the sparkle noise without degrading data content.

Abstract: A laboratory device (4, 9), in particular a magnetic stirrer, comprises at least one adjustable operating parameter for controlling at least one laboratory device function, and an outer housing (2). The outer housing (2) has a coupling device (11a, 11b) for coupling the laboratory device (4, 9) to at least one further laboratory device (5, 9) for the same at least one laboratory device function, at which further laboratory device the at least one operating parameter can also be adjusted, and the coupling device (11a, 11b) is configured such that by means of the coupling device (11a, 11b) the laboratory device (4, 9) and the at least one further laboratory device (5, 9) can be operated simultaneously and by means of a common adjustment device the at least one operating parameter can be adjusted in a central manner independently and/or consistently for the laboratory device (4, 9) and the at least one further laboratory device (5, 9).

Abstract: A system for powering a network element of a fiber optic wide area network is disclosed. When communication data is transferred between a central office (CO) and a subscriber terminal using a network element to convert optical to electrical (O-E) and electrical to optical (E-O) signals between a fiber from the central office and twisted wire pair, coaxial cable or Ethernet cable transmission lines from the subscriber terminal, techniques related to local powering of a network element or drop site by the subscriber terminal or subscriber premise remote powering device are provided. Certain advantages and/or benefits are achieved using the present invention, such as freedom from any requirement for additional meter installations or meter connection charges and does not require a separate power network.

Abstract: An apparatus is adapted to test a power supply device of the USB-PD type which includes at least one USB Type-C connector. The USB Type-C connector is intended to be connected to the power supply device to be tested. The device is separate from the apparatus.

Abstract: An apparatus is for testing a device to be supplied with power via USB Power Delivery (USB-PD). The apparatus includes at least one USB Type-C connector configured to be connected to the device to be supplied with power to be tested, the at least one USB Type-C connector including a power supply terminal. Processing circuitry of the apparatus is configured to verify that a voltage at the power supply terminal is lower than a first threshold, verify a role of the device, generate requests representative of power supply configurations supported by the role of the device, and verify compatibility of the power supply configurations supported by the device with standardized power supply configurations.

Abstract: Methods and systems for providing intelligent power distribution. A distribution point unit is connected to a plurality of user units in a telecommunications system. A loss of power to the distribution point unit is detected. It is determined that at least one user unit has backup power. Based on a determination that at least one user unit has backup power, a power mode for the distribution point unit is selected. The power mode is implemented on the distribution point unit.

Abstract: A powered device of an optical power supply system includes a photoelectric conversion element, a semiconductor laser for feedback and a control device. The photoelectric conversion element converts feed light into electric power, wherein the feed light is from a power sourcing equipment. The semiconductor laser oscillates with a portion of the electric power, thereby outputting feed light to a power supplying side. The control device monitors a power supply amount of the electric power to a load, and according to the power supply amount, controls an electricity-light conversion amount of conversion that is performed by the semiconductor laser.

Abstract: An optical transformer includes a plurality of light emitters, a plurality of photovoltaic cells positioned to receive light from at least a first subset of the plurality of light emitters, the plurality of photovoltaic cells including at least a first photovoltaic cell and a second photovoltaic cell, and one or more optically triggered switches positioned to receive light from at least a second subset of the plurality of light emitters, the one or more optically triggered switches including at least a first optically triggered switch electrically coupled to the first photovoltaic cell and the second photovoltaic cell. A method of operating the optical transformer is also described.

Abstract: An optical power supply system includes a power sourcing equipment, a powered device, an information obtaining part and a power supply controller. The power sourcing equipment outputs feed light. The powered device converts the feed light into electric power. The electric power is supplied to a communicator. The information obtaining part obtains communication operation information on an operation status of communication that is performed by the communicator. Based on the obtained communication operation information, the power supply controller controls output of the feed light. The communicator is a wireless communicator that performs wireless communication.

Abstract: This invention pertains to the field of free-space optical (FSO) communications, and specifically to the realization of functional FSO optical transceiver terminals located at remote electrically unpowered locations within a communications network. A remote unpowered FSO terminal located at a far-end location receives necessary optical power from a powered base station location (near-end) required for all optical amplification functions necessary for NRZ or RZ format signals within the spectral range of 900 nm to 1480 nm as well as an Ultra Short Pulsed Laser (USPL) centered at 1560 nm at the far-end location. A transmitting node identified as the near-end transmits an optical signal identified as a pump signal to a remote location classified as the far-end node over a free space medium, such as the atmosphere, where the far-end node location does not have available electrical power for operation of electro-optic components required for transmission and retransmission functions.

Abstract: A power over fiber system includes: a first data communication device including a power sourcing equipment device; a second data communication device including a powered device; and an optical fiber cable. The first data communication device and the second data communication device perform optical communication with one another. The first data communication device is capable of controlling low power supply and high power supply that are performed by the power sourcing equipment device. Feed electric power by the high power supply exceeds feed electric power by the low power supply. The first data communication device starts up the second data communication device by the low power supply to the second data communication device, and enables the high power supply after receiving predetermined light from the second data communication device, and disables the high power supply before receiving the predetermined light.

Abstract: Methods and systems for providing intelligent power distribution. A distribution point unit is connected to a plurality of user units in a telecommunications system. A loss of power to the distribution point unit is detected. It is determined that at least one user unit has backup power. Based on a determination that at least one user unit has backup power, a power mode for the distribution point unit is selected. The power mode is implemented on the distribution point unit.

Abstract: A power over fiber system includes: a first data communication device including a power sourcing equipment device; a second data communication device including a photoelectric-conversion-and-optical-communication unit including a powered device; and an optical fiber cable. The first data communication device is capable of controlling low power supply and high power supply of the power sourcing equipment device. Feed electric power by the high power supply exceeds that by the low power supply. The first data communication device enables the high power supply after starting the low power supply to the second data communication device and receiving, therefrom, a signal indicating that the photoelectric-conversion-and-optical-communication unit has started.

Abstract: A method for use in a headend communications device, the method including receiving an input data signal over a fiber optic port, switching the input data signals to a plurality of data signals, converting the data signals to output coaxial cable signals and transmitting the output coaxial cable signals.

Abstract: Reverse powering equipment includes: a power supply module, configured to supply power resources to a distribution point unit by using a line; a switch, configured to control whether the power supply module supplies power; a line test module, configured to: when the switch is opened and the power supply module does not supply power, test whether a user terminal is connected to the line; and a system control module, configured to send an alarm signal when the line test module determines that a user terminal exists on the line, and after a user disconnects the user terminal, control the switch to be closed and the power supply module to supply power. The reverse powering equipment can prevent the user terminal from being damaged.

Abstract: A system for transmitting routable energy packets includes an optical power source and a processing circuit. The optical power source is configured to generate an optical power packet having optical energy, generate an optical data packet comprising routing information configured to control a route of the optical power packet, and transmit the optical power packet and the optical data packet via a conduit. The processing circuit is configured to generate the routing information to be transmitted within the optical data packet, and control a transmission by the optical power source.

Abstract: The present inventive subject matter provides an apparatus and system for power distribution management. For example, power distribution management is provided, comprising: detecting an establishment of a connection between a PDU outlet of a PDU and a device to be powered by the PDU; and causing the identification specific to the connection to be shared between the PDU and the device over optical communication in response to establishment of the connection. Corresponding system and power cable are also disclosed. According to embodiments of the present inventive subject matter, the connection relationship between any devices and PDU outlets can be determined efficiently and effectively by checking and matching the connection identifications.

Abstract: Method for dealing with an anomalous condition in a local network including a power injector, said method comprising connecting the power injector to a communication line extending between the local network and a remote device, said power injector being capable of injecting power on the communication line, for reverse powering a remote device located outside the local network, and for powering any local device that is regularly connected to the communication line; said communication line being used for exchanging data between the remote device and the local network; recognizing when a power consumption behavior of the power injector deviates from a characteristic power consumption behavior of said remote device and of any regularly connected local device; and controlling the power injector when a deviation is recognized.

Abstract: Embodiments include distribution in optical fiber-based distributed communications systems configured to provide digital data services and radio frequency (RF) communications services, and related components and methods. Embodiments disclosed include units that can be provided in optical fiber-based distributed communications systems that are configured to support RF communication services and digital data services. The units may also be configured to support providing distribution of power.

Abstract: Intelligent illumination device are disclosed that use components in an LED light to perform one or more of a wide variety of desirable lighting functions for very low cost. The LEDs that produce light can be periodically turned off momentarily, for example, for a duration that the human eye cannot perceive, in order for the light to receive commands optically. The optically transmitted commands can be sent to the light, for example, using a remove control device. The illumination device can use the LEDs that are currently off to receive the data and then configure the light accordingly, or to measure light. Such light can be ambient light for a photosensor function, or light from other LEDs in the illumination device to adjust the color mix.

Abstract: A method of retrieving status information of a lighting system includes propagating a command signal from a controller to a node of the lighting system by operating upstream transceivers that are upstream of the node in a transmitting mode and operating downstream transceivers that are upstream of the node in a receiving mode; propagating a reply signal including the status information of the LED unit of the node from the node to the controller by operating the upstream transceivers that are upstream of the node in a receiving mode and operating each of the downstream transceivers upstream of the node in a transmitting mode and reversing an operating mode of an upstream transceiver of a network segment from operating in a transmitting mode to operating in a receiving mode only when the downstream transceiver is operating in transmitting mode.

Abstract: An aerial platform comprising a kite providing a level of directional stability when elevated by the wind, and an inflated balloon attached above the kite with a cord. The payload is attached to the kite. The physical separation of the balloon from the kite isolates the payload from shocks generated by the balloon. Additional isolation is provided by use of an elastic attachment cord. Electric power is supplied to the aerial platform by means of an optical fiber receiving optical power from a ground-based source, and conversion of the optical power to electrical power on board the platform. In order to provide a strong tether line, the optical fiber is plaited with a jacket braided from high tensile strength fibers. An aerial laser transmitter is described using a ground based laser source transmitting laser power through an optical fiber to an aerial platform for transmission from the platform.

Abstract: A network for delivering optical power over an optical conduit includes at least one optical power source delivering optical power to multiple outlet power subsystems the subsystem managing demands for power from the multiple outlet sinks.

Abstract: Embodiments of the concepts, systems, and techniques disclosed herein are directed to an optically powered, direct-sampling, analog-to-digital converter (ADC) that provides fully formatted, serialized data for transmission over optical fiber from a remote location. Such a system and method of use thereof requires less electrical power, fewer components, and less complexity than previous systems and methods and achieves an all-optical-fiber implementation that provides complete electrical and electromagnetic interference (EMI) isolation for the remote ADC. These concepts, systems, and techniques simplify the overall remote sensing architecture by locating the ADC near the sensor and transferring pure digitized signals back to the processor.

Abstract: An optical-power-distribution (OPD) subsystem that provides means for supplying optical local-oscillator signals and optical-carrier signals to various optical line cards, without the need for each optical line card to have a corresponding individual laser source. In one embodiment, a single laser coupled to the OPD subsystem provides optical local-oscillator signals and optical-carrier signals to multiple optical line cards. In another embodiment, multiple lasers coupled to the OPD subsystem provide multiple optical local-oscillator signals and optical-carrier signals to a single line card. An OPD subsystem may provide significant power savings in the operation of the corresponding optical transport system, a reduction in the required equipment-cooling capacity, and an increase in the device-packing density within optical line cards and inside equipment cabinets that house optical line cards.

Abstract: Exemplary optical communication devices are described which, in certain embodiments, derive power optically from and communicate optically to a reading device. The communication devices may also receive data from modulated light from the reading device to achieve a bi-directional optical communication link between the self-powered optical communication device and the reading device. In some embodiments, the communication device is powered by ambient light, such as sunlight, captures data from a sensor, and communicates the stored data some time later to a reading device. In some embodiments, the communication device is powered locally and communicates through air, optical fiber, or other medium with another communication device.

Abstract: In an n-node optical communications system, energy harvesting photodetectors at each node receive extraneous electromagnetic wavelengths that are not used for communication or other purposes by the associated node. The energy harvesting photodetectors convert the unused electromagnetic energy into reusable electrical energy. The harvested electrical energy may be used as auxiliary power at the node or elsewhere in the communication system, or stored in a battery, capacitor, or other energy storage device. The system may be used in an “all-to-all” broadcast and select communication scheme or in some other broadcast and select interconnect system that has extraneous wavelengths at node receivers.

Abstract: A system for delivering optical power over optical conduits includes at least one optical power source delivering multiple optical power forms to multiple outlet nodes in a variety of applications.

Abstract: An optical communication system includes a plurality of Customer Premises Equipment (CPE) each having a reverse power supply and configured to transmit and receive data and provide power over a wire pair connected thereto. An optical network unit is formed as a plurality of communication ports. A respective communication port is configured to provide communications data service with a respective CPE by transmitting and receiving data therewith. A power management circuit is connected to the communication ports and configured to receive power provided by each reverse power supply at a respective CPE and manage power consumption in the ONU. A processor is configured to receive alarms generated by at least one of a CPE and ONU indicative of a power fault condition and process the alarms and discriminate between different power fault conditions.

Abstract: According to one embodiment, there is provided a visible-light communications system in which bidirectional visible-light communication is performed between a visible-light communications device and a mobile terminal. The device has one light source. The mobile terminal has a retroflection unit. The mobile terminal further has first and second optical filters. The first optical filter extracts a visible light beam modulated with the data transmitted from the visible-light communications device. The second optical filter extracts a visible light beam that will be used as a retroflection light beam that is not modulated.

Abstract: The present invention relates to an optical receiver (1) for receiving alternating-light data signals and for storing electrical energy obtained from extraneous light, having a photodiode (2) for receiving light, which comprises extraneous light and an alternating-light data signal component with a higher frequency in comparison to the extraneous light, and for converting the light into a photocurrent (IP) which comprises a data signal current (IN) and an extraneous light current (IF) said receiver additionally comprises a coupling unit (3) for coupling in and separating the data signal current generated by the optical alternating-light data signal component from the extraneous light current generated by the extraneous light, an amplifying unit (4) for amplifying the data signal current and an energy storage unit (5) which is charged by the extraneous light current (IF) and which includes a circuit for increasing voltage, wherein the energy charged in the energy storage unit (5) is used for at least partially

Abstract: A deployable photonic link including a deployable length of optical fiber and an interface module fusion spliced to at least one end of the optical fiber so that the module is directly connected to the fiber. The interface module including at least one of: an input for receiving a first electrical signal including a first radio frequency (RF) signal component; and an output for outputting a second RF signal component. The interface module further including, respectively, at least one of: a device for receiving the first electrical signal from the input and for producing an optical signal modulated with the first RF signal component for transmission in the optical fiber; and a device for receiving a modulated optical signal and for producing therefrom the second RF signal component for output at the output. An interface module may also contain both the input and the output and the devices for receiving RF signals and for receiving modulated optical signals.

Abstract: The present inventive subject matter provides an apparatus and system for power distribution management. For example, power distribution management is provided, comprising: detecting an establishment of a connection between a PDU outlet of a PDU and a device to be powered by the PDU; and causing the identification specific to the connection to be shared between the PDU and the device over optical communication in response to establishment of the connection. Corresponding system and power cable are also disclosed. According to embodiments of the present inventive subject matter, the connection relationship between any devices and PDU outlets can be determined efficiently and effectively by checking and matching the connection identifications.

Abstract: Power distribution management comprises: detecting an establishment of a connection between a PDU outlet of a PDU and a device to be powered by the PDU; and causing the identification specific to the connection to be shared between the PDU and the device over optical communication in response to establishment of the connection. Corresponding system and power cable are also disclosed. According to embodiments of the present inventive subject matter, the connection relationship between any devices and PDU outlets can be determined efficiently and effectively by checking and matching the connection identifications.

Abstract: A data center for executing a data processing application includes processing units, sub-units or servers. Each of the processing units, sub-units or servers can execute a part or all of the data processing application. The processing units, sub-units or servers are electrical disjoint with respect to data communications, but can communicate with each other over free space optical links.

Abstract: Serially-distributed access points in a communication network include a cable including network communication wires, a plurality of access points connected in series with the network communication wires along a length of the cable, and a headend interface connected at one end of the cable and operable to provide a communication interface with the access points. Low-cost access point chipsets are used to build an enterprise-class communication network by embedding many low-cost, consumer grade access point chipsets into a single cable. The distance between the chipsets is small enough so as to create many microcells.

Abstract: A mechanism for adjusting or shutting off an optical signal within a network system is provided. The system may include a generating element for providing an optical signal and a bi-directional coupler for transmitting the optical signal to downstream components and fiber links and for transmitting a reflected optical signal based on the reflection characteristics of the downstream components to a converter element. The converter element converts the reflected optical signal to an electrical trigger signal that is used by a processing element to monitor the degradation or operational conditions within the network system. Based on the electrical trigger signal the processing element may adjust or shut off the optical signal at the generating element or at another element within the network system or another network system. The processing element may also send a communication signal to other elements or an operator to indicate unacceptable noise within the network system.

Abstract: A system for delivering optical power over optical conduits includes more than one optical power source and an optical power distribution node configured for selectively delivering optical power to multiple optical power sinks.

Abstract: Intelligent illumination device are disclosed that use components in an LED light to perform one or more of a wide variety of desirable lighting functions for very low cost. The LEDs that produce light can be periodically turned off momentarily, for example, for a duration that the human eye cannot perceive, in order for the light to receive commands optically. The optically transmitted commands can be sent to the light, for example, using a remove control device. The illumination device can use the LEDs that are currently off to receive the data and then configure the light accordingly, or to measure light. Such light can be ambient light for a photosensor function, or light from other LEDs in the illumination device to adjust the color mix.