| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 307003000 | Different frequencies or phase | 21 |
| 20080231111 | OUTLET ADD-ON MODULE - A method and an apparatus for upgrading an existing service outlet (e.g. LAN, telephone, power or CATV outlet) in a house by adding functionality thereto. The functionality is added by an add-on module, connected electrically and secured mechanically to the existing outlet. Several attachment devices are exampled, including surface attachment, side clamping, snap locking, strap securing and fastening screws. The add-on module may include a service connector for retaining the basic existing outlet function. The module may be attached in a permanent way or by using a detachable solution. | 09-25-2008 |
| 20080258551 | Communication circuit for a digital electronic dimming ballast - A communication circuit for an electronic dimming ballast provides high-voltage miswire protection and improved rise and fall times of a transmitted digital signal. The electronic dimming ballast comprises a control circuit, which is coupled to a digital communication link, for example, a DALI communication link, via the communication circuit. The communication circuit comprises a receiving circuit for detecting when the digital ballast communication link is shorted and for providing a received digital message to the control circuit. The communication circuit also comprises a transmitting circuit for shorting the communication link in response to the control circuit. The communication circuit also includes a high-voltage fault protection circuit for protecting the circuitry of the communication circuit if the communication circuit high-voltage mains voltages. The communication circuit is operable to reliably transmit digital messages having improved rise and fall times. The communication circuit draws acceptable amounts of current when the communication link is alternatively in idle and active states. | 10-23-2008 |
| 20080290729 | ETHERNET INTERCONNECTION APPARATUS AND METHOD - An Ethernet interconnection device and method. The apparatus includes an input Ethernet connector, a signal separating circuit electrically connected to the input Ethernet connector, a voltage regulator circuit electrically connected to the signal separating circuit, an Ethernet signal repeater circuit electrically connected to the signal separating circuit, and an output Ethernet connector electrically connected to the Ethernet signal repeater circuit. The receiving circuit receives a first voltage signal and an Ethernet data signal from an Ethernet cable. The signal separating circuit separates the first voltage signal from the Ethernet data signal. The voltage regulator conditioning circuit generates a second voltage signal from the first voltage signal. The second voltage signal is a power source the Ethernet signal repeater circuit. The output Ethernet connector is configured to electrically conduct an regenerated Ethernet data signal from the Ethernet signal repeater circuit to an industrial/commercial device. | 11-27-2008 |
| 20080303343 | Power Line Communications System and Power Line Communications Method - The power line communications system of the present invention comprises a power line L that has a plurality of branch lines LB | 12-11-2008 |
| 20080303344 | POWER LINE COMMUNICATIONS SYSTEM - A power line communications system includes slave apparatuses individually connected to multiple electric power line wirings; a master apparatus connected to one of the multiple electric power line wirings; and couplers each connected between the master apparatus and the others of the multiple electric power line wirings. The master apparatus includes a communicator for performing power line communications with the slave apparatuses via the electric power lines; a power supply terminal device connected to the one electric power line wiring; a communication connector provided between the communicator and the power supply terminal device; and a coupler connecting terminal device connected to each of the couplers via a signal line. The communication connector has a first capacitor connected to the power supply terminal device for cutting off a frequency component of commercial power supply and transmitting a frequency component for use in the power line communications, and a first transformer connected between the first capacitor and the communicator. The coupler connecting terminal device is connected between the first capacitor and the first transformer. | 12-11-2008 |
| 20080309158 | Transmission System for Interchanging Information Data Between an Electrical Load and an Upstream Converter - A transmission system for exchanging information data between an electric load having an emitter and a converter having a receiver is disclosed. The converter and the load are connected by a multi-phase supply cable which is connected to a sinus filter having in-line coils and filter capacitors connected across the phases. An inductive component is integrated in the electric circuit formed by the transmitter, a phase conductor of the supply cable and the receiver, wherein the core of the inductive component already saturates even if the current is significantly less than a rated current of the electric load. This transmission system for information data exchange is easy to implement and enables stable data transfer. | 12-18-2008 |
| 20090134699 | Signal Coupling Apparatus For Power Line Communications Using A Three-Phase Four-Wire Power Line - A signal coupling apparatus for power line communications includes an impedance matching transformer and a transmission mode control circuit for high data rate power line communications on a three-phase four-wire distribution line. Therefore, it is possible to improve the efficiency of power line communications, to minimize signal loss, and to construct an optimal high voltage distribution path. | 05-28-2009 |
| 20090261651 | Power Supply and Communications System for a Passenger Aircarft - The invention relates to a combined supply and communications system for transferring data between a data server and at least one of several terminal devices over a power supply cable wherein the data server and each of the several terminal devices are each connected to the power supply cable over an incoupling/decoupling unit. | 10-22-2009 |
| 20100026087 | POWER LINE COMMUNICATION APPARATUS - To improve a communication performance of a communication apparatus by configuring a communication board provided with a PLC signal processor so as to be used in common in other apparatuses, the communication apparatus which performs communication through a power line and a transmission medium different from the power line includes: a power board which is provided with a power unit connected to the power line; an interface board which is separately formed from the power board and is provided with an interface for performing communication through the transmission medium; and a communication board which is separately formed from the power board and the interface board and is provided with a power line communication unit for performing communication through the power line and a connection unit electrically connectable to the power board and the interface board. | 02-04-2010 |
| 20100225162 | Power mains transformer data bridge - A circuit and system having an inductive data link from one or more user-side phases to a plurality of line-side phases by individual data transformers having a winding coupled to the particular phase by a high-permeability ferrite material. The resulting connection across the primary (or primaries) and secondary (or secondaries) selectively provides and efficient coupling of data in a multi-phase environment including step-down distribution transformers and “Δ”-to -“Y” configured circuits while maintaining isolation at the power line frequency. Further embodiments include transfer to selected phases or single-phase applications, and selective signal-pass or -reject filtering. | 09-09-2010 |
| 20110204711 | SYSTEMS AND METHODS FOR DETECTING DATA COMMUNICATION OVER A WIRELESS POWER LINK - A wireless power supply system that detects communications in the input power to the switching circuit. In this aspect of the invention, the wireless power supply includes a detector for generating a signal indicative of the current in the input to the switching circuitry, a band-pass filter for filtering the detected signal, an amplifier for amplifying the filtered signal, a filter for filtering the amplified signal and a comparator for converting the final signal into a stream of high and low signals that can be passed to a controller for processing as binary data stream. In a second aspect, the wireless power supply system includes a detector for generating a signal that varies in dependence on changes in the phase relationship between the current and the voltage in the primary-side tank circuit, a band-pass filter for filtering the signal, an amplifier for amplifying the filtered signal, a filter for filtering the amplified signal and a comparator for converting the final signal into a stream of high and low signals that can be passed to a controller for processing as binary data stream. | 08-25-2011 |
| 20110273008 | INTEGRATED CIRCUIT WITH SUPPLY LINE INTRA-CHIP CLOCK INTERFACE AND METHODS FOR USE THEREWITH - An integrated circuit includes a first circuit and a first power supply line for powering the first circuit. A first intra-chip clock interface generates a first clock signal on the first power supply line. A second power supply line is coupled to the first power supply line and further powers the second circuit. A second intra-chip clock interface recovers the first clock signal from the second power supply line. The second circuit operates based on the first clock signal. | 11-10-2011 |
| 20110278917 | APPARATUS AND METHOD FOR COUPLING RF AND AC SIGNALS TO PROVIDE POWER TO A MULTIPOLE IN A MASS SPECTROMETER - An apparatus and method for coupling RF and AC signals to provide power to a multipole in a mass spectrometer is provided. A first circuit comprises: an RF power source for providing difference mode power to the multipole via the RF signal; at least one inductor for forming at least one resonant LC circuit with the multipole for providing voltage gain for the RF signal; and a transformer, comprising a secondary tap, the transformer connected in parallel to the RF power source and further connected to the at least one inductor such that the signals injected into the secondary tap are communicated to the at least one resonant LC circuit. A second circuit comprises: an AC power source for providing common mode power to the multipole via the AC signal, an output from the second circuit connected to the secondary tap such that the common mode power is injected into the first circuit and the multipole can be operated in common mode and difference mode simultaneously; and at least one inductor for forming a resonant LC circuit with the multipole via the transformer, to provide voltage gain for the AC signal. | 11-17-2011 |
| 20120119568 | DEVICE AND SYSTEM FOR COMMUNICATING ON A SUPPLY LINE - This system ( | 05-17-2012 |
| 20120126612 | AC-DC POWER SUPPLY UNIT AND ASSOCIATED DEVICE - An external power supply unit (PSU) for an appliance includes rectification circuitry operable to convert an AC voltage from mains power lines to a DC voltage output, decoupling circuitry operable to decouple a broadband data signal from the mains power lines, timing circuitry operable to provide a signal representative of the mains AC voltage timing, and conveyance circuitry operable to convey the DC voltage output, a ground reference signal, the signal representative of the mains AC voltage timing, and the broadband data signal to the appliance, wherein the conveyance circuitry has no more than four conductors. The timing circuitry may be further operable to modulate the signal representative of the mains AC voltage timing onto either the DC voltage output or the broadband data signal. The timing circuitry may be a zero-crossing detector. | 05-24-2012 |
| 20120228927 | COMMUNICATION SYSTEM AND COMMUNICATION TERMINAL - A transmitting circuit is connected to a communication line and configured to transmit a primary signal, being a current signal, to the communication line by changing a current flowing from a transmission unit via the communication line. A receiving circuit is configured to receive a secondary signal which is generated by converting the primary signal transmitted from the transmitting circuit to a voltage signal by a current/voltage converter provided between the transmission unit and the communication line. Specifically, the primary signal, being a current signal transmitted from a communication terminal, is converted to the secondary signal being a voltage signal by the current/voltage converter. As a result, communication can be performed even when the impedance of the communication line is reduced, facilitating introduction of a communication system. | 09-13-2012 |
| 20120313428 | COMMUNICATION SYSTEM AND ELECTRONIC CHOKE CIRCUIT - The object of the invention is to propose a communication system using an electronic choke circuit which has impedance slightly varied with a load variation and is prevented from having negative resistance and can stabilize circuit operation. A terminal device includes an electronic choke circuit separating DC power supplied from a management device and a communication signal from each other. The electronic choke circuit includes a variable impedance element constituted by a transistor having its collector and its emitter respectively connected to a first terminal and a third terminal, and an inductor and a resistor connected in series with the variable impedance element. A series circuit of a first resistor and a first capacitor is interposed between the first terminal and a second terminal, and the first capacitor has its one end connected to a base of the variable impedance element. A second capacitor is interposed between the third terminal and a fourth terminal. A second resistor suppresses a phenomenon that resistance characteristics of a circuit between an input terminal and an output terminal have a negative resistance region within a frequency band including a frequency of the communication signal. | 12-13-2012 |
| 20130020861 | Method And A Device For Impressing A Measuring-signal Voltage On A Power Supply Network - A method and device for impressing a measuring-signal voltage (U) on a power supply network in which a generator signal (U | 01-24-2013 |
| 20130076119 | SYSTEMS AND METHODS TO EMULATE HIGH FREQUENCY ELECTRICAL SIGNATURES - Some embodiments teach an electrical device configured to emulate a high frequency electrical noise signal on an electrical power line. The electrical device can include: (a) a monitoring module configured to detect usage of electrical power from an electrical power line by a first one of one or more electrical appliances; (b) an emitter module configured to generate an emulated high frequency electrical noise signal, the emulated high frequency electrical noise signal emulates electrical noise from a switch mode power supply; (c) a first electrical coupling mechanism configured to couple to a first one of the one or more electrical outlets; and (d) a second coupling mechanism configured to couple to the first one of the one or more electrical appliances. Other embodiments are disclosed. | 03-28-2013 |
| 20140077590 | SYSTEMS AND METHODS TO EMULATE HIGH FREQUENCY ELECTRICAL SIGNATURES - Some embodiments teach an electrical device configured to emulate a high frequency electrical noise signal on an electrical power line. The electrical power line is coupled to one or more electrical outlets and the electrical device configured to be coupled to one or more electrical appliances. The electrical device can include: (a) a monitoring module configured to detect usage of electrical power from the electrical power line by a first one of the one or more electrical appliances; (b) an emitter module configured to generate an emulated high frequency electrical noise signal, the emulated high frequency electrical noise signal emulates electrical noise from a switch mode power supply; (c) a first electrical coupling mechanism configured to couple to a first one of the one or more electrical outlets; and (d) a second coupling mechanism configured to couple to the first one of the one or more electrical appliances. Other embodiments are disclosed. | 03-20-2014 |
| 20140175866 | POWERLINE COMMUNICATED LOAD CONTROL - A system for transmitting communication signals, the system comprising an injector circuit connected to a powered circuit conductor and configured to modulate a power signal with a direct current voltage offset, the direct current voltage offset being within a range that causes approximately 1 percent or less total harmonic distortion of the power signal; and a decoder connected to the powered circuit conductor and a load, the decoder configured to demodulate the direct current voltage offset to control the load. A method for transmitting communication signals, the method comprising modulating a power signal on a powered circuit conductor with a direct current voltage offset, the direct current voltage offset being within a range that causes approximately 1 percent or less total harmonic distortion of the power signal; and demodulating the direct current voltage offset to control a load. | 06-26-2014 |
