Abstract: Embodiments of the present invention include a battery management system that provide a plurality of channels that allow communication between host and clients. This communication may operate in bi-directional modes such that commands from the host and responses from the clients are transmitted clockwise or counter-clockwise around a daisy-chain loop. This architecture provides both a high level of redundancy across multiple channels as well as transmission directions around the loop. The use of multiple channels provides a separation in signal paths akin to the provision of completely separate physical wires, preventing malfunction of spurious operation of devices using one channel from interfering with the normal operation of devices using the other channel. In addition, the signaling architecture allows a host to dynamically transmit commands and receive responses between specific client(s) and host or broadcast communication across all clients.

Abstract: An optical transmitting device includes a plurality of transmitters configured to be arranged so as to correspond to a plurality of channels, the transmitters each reproducing a clock from an input data signal, and outputting the data signal identified and reproduced based on the reproduced clock to a light emitting element and a processor configured to control phase difference between the output data signals based on a result of comparison between phases of the reproduced clocks.

Abstract: A phased-array coherent transceiver system includes a transceiver array including multiple receive (RX) optical elements, a number of RX optical fibers, and an optical receiver. The RX optical elements are coupled to the optical receiver via the RX optical fibers. The optical receiver includes multiple phase modulators, each phase modulator processes a phase of an optical signal received from an RX optical element.

Abstract: Methods and systems for redundant light sources by utilizing two inputs of an integrated modulator are disclosed and may include: an optoelectronic transmitter integrated in a semiconductor die with first and second laser sources coupled to the semiconductor die, said optoelectronic transmitter comprising an optical modulator with a first input waveguide coupled to the first laser source and second input waveguide coupled to the second laser source, the optoelectronic receiver being operable to: configure the first laser source to provide an optical signal to the first input of the optical modulator; and if the first laser source does not provide an optical signal, configure the second laser source to provide an optical signal to the second input of the optical modulator. The first laser source may be optically coupled to the first input waveguide and the second laser source optically coupled to the second input waveguide using grating couplers.

Abstract: An optical line card includes a plurality of coherent receivers and a plurality of optical modulators. The coherent receivers are each configured to receive a corresponding channel of a received optical superchannel. The optical modulators are each configured transmit a corresponding channel of a transmitted optical superchannel. Each of a plurality of optical splitters is configured to receive a corresponding one of a plurality of unmodulated optical signals from an optical source external to the line card. Each splitter directs a first portion of light received by that splitter to a corresponding one of the coherent receivers, and a second portion of light received by that splitter to a corresponding one of said optical modulators.

Abstract: A system for identifying the location of a mobile device uses signatures of standard room lighting derived from the frequency spectrum of light fluctuations associated with driver circuitry of that lighting. Improved sensitivity (frequency and dynamic range) are provided by using a pair of dedicated photodetectors which may deduce a one-dimensional angular location of a light source by comparing the signals developed by two photodetectors having different angular sensitivities.

Abstract: Provided are apparatus including a signal processing circuit. The signal processing circuit may be configured to process an input signal having an input bandwidth spanning a range of input radio frequencies, and may include a local oscillator to produce a local oscillator signal. In one embodiment, the signal processing circuit can include a staring mode of operation. In one embodiment, the signal processing circuit can include a selective mode of operation. In one embodiment, the signal processing circuit can include a staring mode of operation and a selective mode of operation.

Abstract: A method for forwarding a remote control signal and a signal forwarding node using the same are disclosed. Herein, the signal forwarding node includes a laser light receiver configured to detect laser light, an Infra Red (IR) light receiver configured to receive a remote control signal, a wireless communication module configured to transmit and receive data to and from an external signal forwarding node, and a controller configured to control the wireless communication module, when laser light is detected through the laser light receiver, and when the remote control signal is received, so as to forward control information included in the received remote control signal to the external signal forwarding node.

Abstract: A system may receive a user input that identifies an optical route in an optical network, and may receive a user input that identifies a view type, where the view type includes a data channel view or a control channel view. The system may provide, based on the user input, a user interface that displays a representation of network entities associated with the optical route, a representation of an amplification capability associated with a network entity, a representation of a first parameter associated with the network entity, where the representation of the first parameter is based on the user input, a representation of optical links that connect the network entities, where the optical links indicate an optical transmission direction between two network entities, and a representation of a second parameter associated with an optical link, where the representation of the second parameter is based on the user input.

Abstract: An exemplary method includes a user identification system associated with a computing device transmitting a radio frequency (“RF”) signal from a transmitting antenna, receiving a plurality of reflected RF signals that are each a reflection of the transmitted RF signal from an external surface of a user, each of the plurality of reflected RF signals received at a separate one of a plurality of sensing antennas, determining an RF signature based on the plurality of reflected RF signals, and determining whether the RF signature matches a reference RF signature. Corresponding methods and systems are also described.