Patent application number | Description | Published |
20110164670 | POWER LINE COMMUNICATION SYSTEM - The present invention relates to a communication system comprising a transmitter and receiver in communication for transmitting signals through one or more communications channels, wherein at least one of the transmitter and the receiver each comprise a quality measure, which contributes to an overall quality measure for the system and wherein the or each communications channel comprises a plurality of sub-bands between at least two nodes, wherein the plurality of sub-bands each having a specific maximum power spectral densities (PSDs) and wherein one or more sub-bands between the transmitter and the receiver are identified as having a higher maximum PSD than other sub-bandsand wherein the PSD of the one or more identified sub-bands is reduced in a predetermined manner to thereby increase the overall quality measure for the system. | 07-07-2011 |
20110249780 | OFDM Frame Synchronisation Method and System - An OFDM frame synchronisation method in which the symbols of the preamble carry a code. The detection of the code allows the frame synchronization in presence of low SNR. | 10-13-2011 |
20110286393 | COMMUNICATIONS DEVICE - A communications device includes a first circuit and a second circuit. The first circuit includes a wired medium interface circuit that is configured to, in use, communicate data over a wired medium. The second circuit includes a wireless medium interface circuit that is configured to, in use, communicate data over a wireless medium. A destination address controller is included in the first circuit and is operative to determine to which of a plurality of destination addresses at a communications device data is to be communicated from the second circuit. The communications device can have individual visibility of a plurality of destination addresses (e.g. for respective devices) when data is received or transmitted by the wireless medium interface circuit (second circuit). | 11-24-2011 |
20110317723 | POWER LINE COMMUNICATIONS DEVICE TRANSMITTING AT DIFFERING POWER LEVELS IN SAME COMMUNICATION - A power-line communications (PLC) device communicates with a second PLC device via a PLC medium and includes a transmitter and a receiver. The transmitter transmits a Request to Send (RTS) communication to the second PLC device at a first power level. The receiver receives a Clear to Send (CTS) communication from the second PLC device. The transmitter transmits data to the second PLC device at a second power level that is less than the first power level. The transmitter transmits a TDM frame to the second PLC device that includes a preamble and header transmitted at a first power level and at least one special data symbol and a payload transmitted at a second power level that is less than the first power level. The special data symbol resides between the preamble or header and the payload and is usable by the second PLC device for processing of the payload. | 12-29-2011 |
20120188896 | NETWORK APPARATUS AND METHOD - Disclosed is a network apparatus and associated method configured to form a network of operative devices using, in a main embodiment, powerlines as the network medium. The network medium provides for communication of data between operative devices. The network apparatus comprises plural network node apparatus, each of which comprise a network connector and an operative device connector. At least one of the network node apparatus also comprises a power saving apparatus which provides less power to operative parts of the network node apparatus itself and the operative device to which the network node apparatus is attached during a second operating condition than when in a first operating condition, thereby providing for reduced power consumption in the second operating condition. The network node apparatus also comprises a processor which determines at least one quality of service requirement and to change between the first and second conditions accordingly so as to enable routing of data in accordance with the quality of service requirement, while minimizing power consumption of said network apparatus. | 07-26-2012 |
20130002409 | POWERLINE COMMUNICATION DEVICE WITH ADAPTABLE INTERFACE - A Power Line Communications (PLC) device includes a processing module, memory, and a communication interface. In a first operation, the PLC device determines that the PLC device will service communications with a first remote PLC device according to a first PLC communication standard and configures the communication interface to service communications according to the first PLC communication standard. In a second operation, the PLC device determines that the PLC device will service communications with a second remote PLC device according to a second PLC communication standard and configures the communication interface to service communications according to the second PLC communication standard, wherein the first PLC communication standard and the second PLC communication standard are differing and incompatible PLC communication standards. The PLC device may also configure the communication interface to service non-PLC communications such as LAN, WAN, WLAN, cable modem, and other communications. | 01-03-2013 |
20130003874 | POWERLINE COMMUNICATION DEVICE - A Powerline Communications (PLC) device includes a processing module, memory coupled to the processing module, and a PLC interface coupled to the processing module. The PLC device transmits a plurality of PLC queries, two of the plurality of PLC queries complying with differing and incompatible PLC communication standards. It then receives a plurality of responses from a plurality of other PLC devices, two responses received from respective PLC devices complying with two differing and incompatible PLC communication standards. The PLC device then directs each of the two PLC devices to transmit communications of the differing and incompatible PLC communication standards in an attempt to avoid PLC communication conflicts. The PLC device may establish non-PLC communications with a remote communications device. The PLC device may bridge communications between remote PLC devices and between a remote PLC device and a remote non-PLC device. | 01-03-2013 |
20130003875 | POWERLINE COMMUNICATION DEVICE WITH MULTIPLE PLC INTERFACE(S) - A Power Line Communications (PLC) device includes a processing module, memory, a first PLC interface, and a second PLC interface. The PLC device determines that the PLC device will service communications with a first remote PLC device according to a first PLC communication standard and configures the first PLC interface to service communications to support the first PLC communication standard. The PLC device also determines that the PLC device will service communications with a second remote PLC device according to a second PLC communication standard and configures the second PLC interface to service communications to support the second PLC communication standard. The PLC device may service communications via the first and second PLC devices concurrently when the first and second PLC communication standards are not conflicting. The PLC device may transmit communications via the first PLC interface and receive ACKs via the second PLC interface. | 01-03-2013 |
20130007311 | PLC/WIRELESS DEVICE COORDINATED WIRELESS TRANSMISSIONS - A Power Line Communications (PLC) device includes a PLC interface, a wireless interface, a processing module, and memory. The PLC device communicates with a second PLC device via the PLC interface to establish a wireless transmission timing base, communicates with the second PLC device via the power mains to coordinate simultaneous wireless data transmissions to a client device from the PLC device and the second PLC device, wirelessly transmits data to the client device based upon the wireless transmission timing base and the coordination with the second PLC device. In combination the PLC devices' simultaneous wireless data transmissions may be Multiple Input Multiple Output (MIMO) transmissions, diversity transmissions, and/or beam formed transmissions. In another operation, the PLC device characterizes its surroundings based upon concurrent directional transmission and receipt of wireless transmissions by the PLC device. | 01-03-2013 |
20140029679 | POWERLINE COMMUNICATION DEVICE - A Powerline Communications (PLC) device includes a processing module, memory coupled to the processing module, and a PLC interface coupled to the processing module. The PLC device transmits a plurality of PLC queries, two of the plurality of PLC queries complying with differing and incompatible PLC communication standards. It then receives a plurality of responses from a plurality of other PLC devices, two responses received from respective PLC devices complying with two differing and incompatible PLC communication standards. The PLC device then directs each of the two PLC devices to transmit communications of the differing and incompatible PLC communication standards in an attempt to avoid PLC communication conflicts. The PLC device may establish non-PLC communications with a remote communications device. The PLC device may bridge communications between remote PLC devices and between a remote PLC device and a remote non-PLC device. | 01-30-2014 |
20140056340 | POWER LINE COMMUNICATIONS DEVICE TRANSMITTING AT DIFFERING POWER LEVELS IN SAME COMMUNICATION - A power-line communications (PLC) device communicates with a second PLC device via a PLC medium and includes a transmitter and a receiver. The transmitter transmits a Request to Send (RTS) communication to the second PLC device at a first power level. The receiver receives a Clear to Send (CTS) communication from the second PLC device. The transmitter transmits data to the second PLC device at a second power level that is less than the first power level. The transmitter transmits a TDM frame to the second PLC device that includes a preamble and header transmitted at a first power level and at least one special data symbol and a payload transmitted at a second power level that is less than the first power level. The special data symbol resides between the preamble or header and the payload and is usable by the second PLC device for processing of the payload. | 02-27-2014 |
20140105043 | NETWORK ISOLATION SYSTEM - A network isolation system may include a network interface, a power level detector, and a processor. The network interface may be configured to receive signals over channels, where the signals include at least one local network signal, e.g. a signal originating on a local network, and at least one non-local network signal, e.g. a signal originating on a non-local network. The power level detector may be configured to determine attenuation values of the received signals. The signal processor may be configured to discard a first signal and reallocate the channel over which the first signal was received, without processing the first signal in a frequency domain, when the attenuation value of the first signal fails to satisfy a signal threshold. In one or more implementations, the signal threshold may differentiate the local network signal from the non-local network signal based at least in part on the determined attenuation values. | 04-17-2014 |