Marvell Hispania, S.L.U.
|Marvell Hispania, S.L.U. Patent applications|
|Patent application number||Title||Published|
|20140211868||ELECTRICAL DEVICE FOR MULTIPLE-SIGNAL INJECTION ONTO MULTIPLE-CONDUCTOR COMMUNICATIONS MEDIUM - An electrical device includes signal ports, transformers, and a differential mode device. The transformers are in communication with the signal ports, respectively. The transformers are configured to receive input signals, respectively, from the signal ports. Each transformer is configured to inject the respective input signal onto a pair of output lines of the transformer. The differential mode device is connected to a first output line of the pair of output lines of a first transformer exclusive of connection to a second output line of the first transformer. The differential mode device is configured to inject a signal from the first output line onto the pair of output lines of a second transformer. Signals from the pair of output lines of the second transformer are injected onto a pair of conductors, respectively, of a communications medium.||07-31-2014|
|20140079143||SIGNAL INJECTION THROUGH ELECTRIC NETWORK USING DIFFERENT MODES - A system including a coupler to couple a signal to a plurality of conductors of an electric network and a transmitter to select a plurality of modes to inject the signal into the plurality of conductors and to transmit the signal via the plurality of conductors. The plurality of modes is selected from a group consisting of a first mode, a second mode, and a third mode. The first mode includes injection of the signal through a selective combination of the plurality of conductors and circulation of current through ground. The second mode includes injection of the signal through a first conductor and return through a second conductor. The third mode includes injection of the signal through one or more first conductors and return through one or more second conductors. The first conductors are different than the second conductors.||03-20-2014|
|20130230117||PROCEDURE FOR SIMULTANEOUS TRANSMISSION IN TIME AND FREQUENCY OF MULTIPLE COMMUNICATIONS OF DATA BY MEANS OF OFDM MODULATIONS - A system including a first network device, a second network device, and a third network device. The first network device is configured to transmit a first starting signal. The second network device configured to transmit a second starting signal, wherein at least one of the first network device and the second network device is further configured to change a ratio between at least one of respective phases of carriers of the first starting signal and the second starting signal and respective amplitudes of the carriers of the first starting signal and the second starting signal. The third network device is configured to receive the first starting signal and the second starting signal, selectively allow communication with the first network device based on the ratio, and ignore communication from the second network device based on the ratio.||09-05-2013|
|20130195150||SIGNAL REPEATER AND METHOD FOR MATCHING AN OUTPUT IMPEDANCE OF THE SIGNAL REPEATER, WHICH AMPLIFIES A SIGNAL ON AN ELECTRICAL LINE OF AN ELECTRICAL GRID, TO AN IMPEDANCE OF A LOAD - A signal repeater includes a port, an amplifier, and an adaptive device. The port is configured to connect to an electrical line of an electrical grid between devices. Communication over the electrical line and between the devices includes transmission of a first signal. The port is configured to receive the first signal from the electrical line. An amplifier is configured to receive a second signal based on the first signal, and amplify the second signal. The port is configured to receive the amplified second signal, and provide the amplified second signal to the electrical line. An adaptive device is configured to, based on the first signal, adjust an output impedance of the signal repeater to match a first impedance of a load on the signal repeater. The first impedance is seen by the signal repeater at the port, and wherein the first impedance includes an impedance of the electrical line.||08-01-2013|
|20130163652||PROCESS OF SYNCHRONIZATION IN THE TIME AND FREQUENCY DOMAIN OF MULTIPLE EQUIPMENTS IN A TRANSMISSION SYSTEM WITH OFDM MODULATION - A system for determining a frequency error of an orthogonal frequency division multiplexing (OFDM) signal having a first frequency. The system includes a plurality of filters configured to output a plurality of second signals, each of the plurality of second signals corresponding to a respective one of a plurality of different frequency bands of the OFDM signal. Each of the plurality of second signals includes a corresponding synchronization symbol associated with the OFDM signal. A Fourier transform circuit is configured to receive the plurality of second signals from each of the plurality of filters and output the plurality of second signals. The system is configured to determine the frequency error of the OFDM signal based on the synchronization symbols of the plurality of second signals.||06-27-2013|
|20130147572||POWER SUPPLY CABLE FOR POWER LINE COMMUNICATION EQUIPMENT - A method including receiving power, from a power line, at a device configured to communicate via the power line. The power from the power line is received at the device via a power cord of the device being connected, via a connector, to a power outlet from which the power of the power line is supplied. The connector is coupled to a first end of the power cord. The device is coupled to a second end of the power cord. The method further includes supplying a signal generated by the device to a choke located on the power cord. The choke is located closer to the first end of the power cord than to the second end of the power cord. The method further includes transmitting the signal from the choke to the power line for communication via the power line.||06-13-2013|
Patent applications by Marvell Hispania, S.L.U.