BROADCOM EUROPE LIMITED Patent applications |
Patent application number | Title | Published |
20150206651 | TRANSFORMER DRIVER CIRCUIT WITH IC PROTECTION CIRCUITRY - A transformer driver circuit couples to a transformer having a primary winding, a secondary winding, and a transformer tap that is connected to a first voltage source. The primary winding electrically connects at its ends to respective unipolar controllable current sinks that form part of an integrated circuit. The transformer driver circuit operates by each current sink selectively sinking current from the end of the primary winding to which it is connected so as to cause current to flow in the secondary winding in a push-pull fashion. The transformer driver circuit further includes a load electrically connected to the secondary winding and protection circuitry operative to protect the integrated circuit from input levels greater than it can withstand. | 07-23-2015 |
20150155881 | Radio Frequency Circuit - A digital-to-analog conversion circuit operates by selectively charging or discharging members of a plurality of capacitors. Charging of the capacitors occurs during a reset period while digital-to-analog conversion occurs as the capacitors are discharged. Those capacitors that are charged or discharged are selected from the plurality of capacitors based on a digital input. The analog output includes the charge discharged from the selected capacitors. | 06-04-2015 |
20150140929 | Recovering Data in a Near Field Communication Apparatus - A communication device is disclosed that includes an antenna circuit with coupling connections that are used interchangeably as a receive coupling connection and a transmit coupling connection for an RF signal. A driver maintains a constant voltage or a constant current on a first coupling connection of the antenna circuit based on a drive signal that includes an output voltage and an output current. A demodulator extracts modulation from the RF signal based on a fluctuating voltage or a fluctuating current on a second coupling connection of the antenna circuit. | 05-21-2015 |
20150118965 | Near Field Communications (NFC) Device Power Harvesting and Power Supply Selection - A near field RF communicator has an antenna circuit to couple with the H field of an RF magnetic field and a power supply deriver to derive a rectified auxiliary power supply from the received magnetic field. Rectification may be performed using an actively switched rectifier having a passive mode of operation. A sub regulation system is provided to regulate the auxiliary power supply to inhibit the possibility of temporally varying power requirements of the near field RF communicator or its host causing an apparent load modulation of a signal that is transmitted or received by the communicator. | 04-30-2015 |
20150055719 | Feedback impedance control for driving a signal - A system for driving a first signal onto a wireline includes a driver and feedback circuitry. The driver drives a deterministic signal onto the wireline with an unknown impedance load. The feedback circuitry measures a quality of the output signal from the wireline and modifies a gain of the first signal based on the quality of the output signal. The driver then drives the first signal onto the wireline with the modified gain. | 02-26-2015 |
20150015236 | CONSUMER CONSUMPTION MONITORING SYSTEM - A consumer consumption monitoring system includes a plurality of measurement devices disposed in corresponding supply paths of coupled consumer devices located within a building. A network node circuit coupled to the plurality of measurement devices retrieves measurement data from the plurality of measurement devices, and stores and analyzes the measurement data over time to develop one or more consumer device consumption profiles. | 01-15-2015 |
20140162553 | TIMING MANAGEMENT FOR AN NFC COMMUNICATOR AND RELATED DATA SOURCE - An NFC communicator has a coupler operable to couple with a coupler of a near field RF communicator in near field range to enable communication of data between the communicators by modulation of a magnetic field, a demodulator to extract modulation from a modulated signal coupled to the coupler, and a modulator to modulate an RF signal in accordance with data to be communicated by the NFC communicator. The NFC communicator communicates with a data source and is arranged to at least one of provide timing data to the data source and receive timing data from the data source. | 06-12-2014 |
20130127446 | CURRENT MEASURING APPARATUS - The present invention discloses a current measuring apparatus and associated networking apparatus, the current measuring apparatus comprising: a consumer unit comprising at least one interrupting device operative to interrupt a mains electricity supply when an excess current flows, such as a fuse box, a mains current circuit in the mains electricity supply path; and a measurement circuit that is operative to measure a voltage drop across the mains current circuit. | 05-23-2013 |
20120313619 | CURRENT MEASURING APPARATUS - What is disclosed is a current measuring apparatus comprising: a mains connector, such as a plug, for connecting to a wire of a mains supply; an apparatus connector, such as a socket, to provide for electrical conduction to an electrical apparatus; a coil in series between the mains connector and the apparatus connector; and a measurement circuit that is operative to measure a voltage drop across the coil. In particular the coil is one present to also filter the mains signal. Also disclosed is a mains voltage powered consumer product, a network and an adaptor utilising the current measuring apparatus. | 12-13-2012 |
20120306472 | Transformer Driver Circuit - Disclosed is a transformer driver circuit, which in one aspect comprises a transformer comprising a primary winding and a secondary winding and a transformer tap, the latter electrically connected to a first voltage source. The primary winding is electrically connected at both ends to respective unipolar controllable current sinks that form part of an integrated circuit. The circuit operates by each current sink selectively sinking current from the end of the primary winding to which it is connected so as to cause current to flow in the secondary winding in a push-pull fashion. The circuit further comprises a load electrically connected to the secondary winding; and protection circuitry operative to protect the integrated circuit from input levels greater than it can handle. In another aspect there is a similar transformer drive circuitry which may or may not be partly on an integrated circuit and have protection circuitry. This aspect comprises control circuitry that provides analogue control signals to the current sinks so as to cause them to sink current in a substantially linear dependence on the signal amplitude of said analogue control signals. | 12-06-2012 |
20120263253 | RADIO FREQUENCY CIRCUIT - A digital-to-analog conversion circuit operates by selectively discharging members of a plurality of capacitors. Charging of the capacitors occurs during a reset period while digital-to-analog conversion occurs as the capacitors are discharged. Those capacitors that are discharged are selected from the plurality of capacitors based on a digital input. The analog output includes the charge discharged from the capacitors. The capacitors are optionally divided into separate capacitor banks. | 10-18-2012 |
20120263066 | COMMUNICATIONS APPARATUS - Disclosed is a communications apparatus comprising: a first medium interface circuit that communicates data over a powerline medium, a first medium access controller, for controlling the first medium interface circuit, said first medium access controller having a first MAC address; a second medium interface circuit that is 802.11 compliant and which communicates data wirelessly, a second medium access controller, which controls the second medium interface circuit, said second medium access controller having a second MAC address; and a communications medium access controller that is operative to provide for communication of data simultaneously over the powerline medium and wirelessly by way of the first and second medium interface circuits; wherein said first medium interface circuit and said second medium interface circuit are linked at the layer II level of the OSI model. A network of said devices is also disclosed, the network possibly including device connected via only one of the media. | 10-18-2012 |
20120243621 | Multi-Wideband Communications over Multiple Mediums within a Network - A multi-network interface device comprises a powerline communications interface and at least one other non-power line communications interface configured to communicate over a network. The network may comprise mediums including powerlines, telephone lines, and/or coaxial cables. The multi-network interface device may receive a communications signal via a first medium and transmit the message via a second medium based on a quality of service (QoS) metric. | 09-27-2012 |
20120237010 | Coupling signal processing circuitry with a wireline communications medium - A system and method for processing a communication signal from a wireline is provided. The system comprises a coupling unit and signal processing circuitry. The coupling unit comprises a transformer and is configured to receive the communication signal from the wireline. The coupling unit is also configured to generate a first signal based on amplifying or attenuating the communication signal according to a first winding ratio of the transformer and a second signal based on amplifying or attenuating the communication signal according to a second winding ratio of the transformer. The signal processing circuitry is configured to process the first signal and the second signal. | 09-20-2012 |