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| Number | Title | Issue Date |
| 8130057 | Lumped cross-coupled Wilkinson circuit The present invention relates to a lumped cross-coupled Wilkinson circuit having a pair of magnetically cross-coupled inductive elements coupled to an isolation network. By magnetically cross-coupling the inductive elements, which have a mutual inductance, the induc... | 03/06/2012 |
| 8063716 | Wideband signal splitter using combination of discrete transformers and wilkinson splitters A power divider includes an input port and a plurality of output ports. The power divider further includes a splitter fabricated from a plurality of discrete elements including at least one transformer having a ferrite core. The splitter has an input and a plurality... | 11/22/2011 |
| 7830225 | Electric signal splitters The present invention is an electronic signal continuity device comprising an electrically conductive case having a volume, an input port and at least two output ports. The continuity device further includes a printed circuit board (PCB) in electrical communication ... | 11/09/2010 |
| 7755452 | Power combiner An RF power combiner used to combine an output received from a plurality of power amplifiers. The combined output is used to operate a gas discharge laser. In some embodiments, the power combiner consists of a network of transformers that provide an output to a load... | 07/13/2010 |
| 7675386 | Inductive coupling circuit and telecommunication method by sheathed cables of an electrical current distribution network The various designs of capacitive or inductive coupling/decoupling fitted on cables in a medium voltage network are known, the inductive coupling circuits constantly inducing current in the sheath of the electric cable. The invention aims at obtaining ranges of capa... | 03/09/2010 |
| 7667556 | Integrated power combiner/splitter A combiner/splitter with distributed lines including a first line formed of a first planar winding in a first conductive level and of a second planar winding in a second conductive level; a second line formed of a third planar winding interdigited with the first win... | 02/23/2010 |
| 7623006 | Power combiner/splitter A distributed combiner/splitter having a first line formed of a first planar winding in a first conductive level and of a second planar winding in a second conductive level, and a second line formed of a third planar winding interdigited with the first winding in th... | 11/24/2009 |
| 7319435 | Balun for an antenna A balun used in high-power applications capable of accommodating a transmission line includes a core with a top surface and a bottom surface formed from soft iron material. At least two holes are provided through the core between the top surface and the bottom surfa... | 01/15/2008 |
| 7248108 | Power amplifier employing thin film ferroelectric phase shift element An amplifier includes a signal splitter operable to receive an input signal and generate at least first and second split signals, a first amplifier adapted to receive the first split signal and to generate a first amplified signal, and a second amplifier adapted to ... | 07/24/2007 |
| 7236765 | Data communication over power lines A system for receiving and processing signals received from a plurality of endpoints. Each endpoint includes an endpoint transmitter in electrical communication with a power distribution line within a power distribution system. The system comprises a power line coup... | 06/26/2007 |
| 7224243 | Power line coupling device and method of using the same The coupler of the present invention includes a plurality of core members that are disposed between the semi-conductive ground jacket and neutral conductor of a standard URD MV cable. The core members are series wound by a transformer conductor, which forms a second... | 05/29/2007 |
| 7205865 | Power divider and combiner in communication system Disclosed is a high frequency omni-directional 2-way power divider which includes one input terminal and two output terminals so that a signal inputted through the input terminal is uniformly distributed to the two output terminals. The high frequency omni-direction... | 04/17/2007 |
| 7154233 | Converter circuit with coupled inductances having asymmetrical air gap arrangement The invention relates to a converter circuit with coupled inductances L1 and L2 which have a core K having an air gap S which is asymmetrical with respect to the inductances. ... | 12/26/2006 |
| 7065143 | Method and design for increasing signal to noise ratio in xDSL modems A DSL modem comprises an additional transformer and additional coils on a coupling transformer to couple a received signal on a transmission line to a receive path without loss due to an active impedance. The ratio of windings on the coils allows gain to be introduc... | 06/20/2006 |
| 7005942 | Non-switching adaptable 4-way power splitter/combiner A 4-way power splitter/combiner circuit providing a plurality of transmission lines of selected impedance and phase shift to define four amplifier ports into which one to four amplifiers may be populated without reconfiguration of the circuit. The circuit provides a... | 02/28/2006 |
| 6982611 | Power line coupling device and method of using the same The coupler of the present invention includes a plurality of core members that are disposed between the semi-conductive ground jacket and neutral conductor of a standard URD MV cable. The core members are series wound by a transformer conductor, which forms a second... | 01/03/2006 |
| 6965280 | Three way power splitter A three way power splitter that has a small package size. The three way power splitter includes a multi-layered low temperature co-fired ceramic substrate. An input transformer and three output transformers are attached to the top of the substrate. The transformers ... | 11/15/2005 |
| 6963256 | Low cost splitter A low cost power splitter that has a small size and can be used with automated surface mount manufacturing equipment. The power splitter includes a case having a cavity and a lead mounting surface. Leads are secured to the lead mounting surface. A substrate is mount... | 11/08/2005 |
| 6963255 | Power splitter A power splitter that has a small package size and repeatable electrical characteristics. The power splitter includes a low temperature co-fired ceramic (LTCC) substrate with several layers. Electrical components such as resistors and capacitors are integrated withi... | 11/08/2005 |
| 6831527 | Insertion box An insertion box provides a plurality of input and output ports. Each input port corresponds with a predefined and unchanging set of output ports. Insertion of a signal into a particular input port results in that signal being delivered to each of the corresponding ... | 12/14/2004 |
| 6806790 | Miniature 180 degree power splitter A power splitter that has a small package size and repeatable electrical characteristics. The power splitter includes a low temperature co-fired ceramic (LTTC) substrate with several layers. Electrical components such as resistors, capacitors and ground planes are i... | 10/19/2004 |
| 6788166 | Harmonic wave distortion suppressor A harmonic wave distortion suppressor includes a main body, at least a connecting pin and a coating. The main body is made of a first material and covered with a second material for absorbing an instantaneous high voltage or sharp wave. The connecting pin is coupled... | 09/07/2004 |
| 6621374 | Splitter/combiner using artificial transmission lines, and paralleled amplifier using same A power splitter/divider may be used with a paralleled amplifier. The power splitter/divider includes a common port and a distribution structure for distributing equal-amplitude samples of the applied signal from the common port to four cascades of artifi... | 09/16/2003 |
| 6617947 | Tuning circuit A tuning circuit for a circuit board having an inductor coupling a first and a second trace, the tuning circuit including a first tuning coil having a loop partially extending over the inductor and a second tuning coil having a loop also partially extendi... | 09/09/2003 |
| 6614326 | Power-line coupler having a circuit breaker form or a panelboard employing the same A CEBus coupler for a pair of power-lines includes a housing in the form of a miniature two-pole circuit breaker. A wire pigtail electrically connects to a neutral power-line. First and second circuit breaker stabs are disposed on the housing. An inductiv... | 09/02/2003 |
| 6578202 | Signal splitter for cable TV A standard, high performance CATV signal splitter that operates at high signal levels with greatly reduced intermodulation distortion. The circuit retains the presently accepted performance standards for RF signal splitters while reducing the unacceptable... | 06/10/2003 |
| 6327309 | Bidirection channels using common pins for transmit and receive paths A bidirectional communications interface employs the same path for transmitting and receiving. The bidirectional communications interface includes one two winding transformer for both transmit and receive and an integrated circuit having a transmitter and... | 12/04/2001 |
| 6314481 | Resistance integrated coupler between databus and terminal device having databus windings with high resistance wire with resistance being 1.5 times databus cable nominal characteristic impedance A system and method for constructing a resistance integrated coupler adapted to be coupled between a data bus and a terminal device. The system and method includes the steps of calculating a desired resistance of a set of data-bus windings, wherein the de... | 11/06/2001 |
| 6140889 | High-frequency signal splitter A splitter for passband signals up to several GHz has symmetrical transformer windings that are connected together at input ends and extend to output ends. An input resistor connects between an input terminal of the splitter and the connected input ends o... | 10/31/2000 |
| 6118354 | High frequency splitter A multi level splitter device suitable for CATV distribution systems utilizes transformers with bi-multiplefilar windings as well as impedance matching transformers selectively placed and port isolation techniques to provide excellent performance througho... | 09/12/2000 |
| 6078784 | Multi-tap radio frequency modulator A multi-tap RF modulator includes an amplifier for amplifying a telecast RF signal input to an antenna input port; a modulation section for modulating the RF signal output from a VCR, SVR, or game player; and a mixer/splitter having more than one RF outpu... | 06/20/2000 |
| 6078299 | Multi-phase coupler with a noise reduction circuit A multi-phase coupler including a noise reduction circuit which provides two output signals which are separately shifted in phase with respect to an input radio frequency (RF) signal. The input RF signal is capacitively phase-shifted to lead the phase of ... | 06/20/2000 |
| 6064279 | RF offset circuit using a half wavelength transmission line An RF signal offset circuit using a half wavelength transmission line is provided. The RF signal offset circuit includes an RF transformer having an input coil and an output coil. The input coil has first and second input ports. The output coil has first ... | 05/16/2000 |
| 6033101 | Cable television radio frequency and AC Power multitap A tap for delivering electrical power and video signals to subscriber substations includes an input coupling module for coupling a main video signal and a main power signal from a cable conductor to the tap. Means are provided for generating a subscriber ... | 03/07/2000 |
| 5949300 | Line coupler A line coupler is provided having a bus line piece, at least one transformer, two electrically shielded housings and a coupling site. The transformer is equipped with two primary and two secondary winding terminals. The two primary winding terminals are c... | 09/07/1999 |
| 5912924 | Bidirectional channels using common pins for transmit and receive paths A bidirectional communications interface employs the same path for transmitting and receiving. The bidirectional communications interface includes one two winding transformer for both transmit and receive and an integrated circuit having a transmitter and... | 06/15/1999 |
| 5805042 | Radio frequency low hum-modulation AC bypass coil A radio frequency choke for use in a cable television transmission and distribution circuit is disclosed. The radio frequency choke comprises a core of zinc-ferrite material as provided by MMG/NEOSID, Ltd., part number 31P0250012, and a wire coil wound ar... | 09/08/1998 |
| 5742213 | Unbalanced to balanced high impedance ratio wideband transformer circuit A transformer circuit disclosed performs wideband impedance transformation (matching) and can be used for voltage step-up and step-down applications. The circuit disclosed is comprised of two transmission line transformers and two reactive impedances that... | 04/21/1998 |
| 5705961 | Induction device for high radio frequency signal distributor An induction device for high radio frequency signal distributor which is able to act as a right signal distributing induction device on the right side of the high radio frequency signal distributor and act as a left signal distributing induction device on... | 01/06/1998 |
| 5689218 | Tap for extracting energy from transmission lines A tap for coupling electromagnetic energy between first and second coaxial cables. The tap comprises a pair of coupled transmission lines, means for connecting said transmission lines to said first cable, and means for connecting said transmission lines t... | 11/18/1997 |
