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| Number | Title | Issue Date |
| 7439610 | High power shunt switch with high isolation and ease of assembly A high power shunt switch comprises a leadframe including a paddle for supporting a shunt element, and a plurality of bond pads located around a periphery of the paddle, wherein at least a first subset of the bond pads are aligned in a substantially straight-line co... | 10/21/2008 |
| 7427949 | System and method of using absorber-walls for mutual coupling reduction between microstrip antennas or brick wall antennas A multi-element antenna with sufficiently small return loss and mutual coupling signals to allow the simultaneous transmission of powerful radar signals and the reception of faint target return signals. The microstrip patch antenna has radio frequency absorbing mate... | 09/23/2008 |
| 7420512 | Antenna system An antenna system for a radio frequency identification system comprising: (a) a base; (b) a first patch antenna disposed on the base and having a circular polarization and adapted to convert between electrical signals and electromagnetic fields; and (c) a second pat... | 09/02/2008 |
| 7417513 | System and method for signal filtering in a phase-locked loop system A system and method for modulating a phase component of an electromagnetic signal includes a phase/frequency detector having first and second inputs and an output. The first phase/frequency detector input may be configured to receive a reference signal. The system m... | 08/26/2008 |
| 7402842 | Light emitting diode package A light emitting diode package and method of manufacturing the light emitting diode package are provided. The light emitting diode package includes a sub-mount portion and a frame portion extending from the sub-mount portion. The frame portion has angled walls and i... | 07/22/2008 |
| 7397390 | Wireless traffic control system A wireless traffic control system and method for wirelessly communicating information using traffic control signs are provided. The method includes wirelessly transmitting at least one of traffic control information and vehicle information from a traffic control sig... | 07/08/2008 |
| 7397381 | Radio frequency locator system A radio frequency locator system is provided that includes a plurality of locator elements configured to communicate using a radio frequency identification (RFID) communication system and at least one communication device configured to receive locator information fr... | 07/08/2008 |
| 7388457 | Dielectric resonator with variable diameter through hole and filter with such dielectric resonators In accordance with the principles of the present invention, a dielectric resonator is provided with a longitudinal through hole with a diameter that varies as a function of height of the resonator so as to increase the frequency spacing between the fundamental mode ... | 06/17/2008 |
| 7387518 | Grounding attachment assembly An attachment assembly and method for attachment are provided. The attachment assembly includes a base having a shaft extending therefrom and a non-conductive compression member having a plurality of slots and configured to engage the shaft. The attachment assembly ... | 06/17/2008 |
| 7385454 | Ferrite housing for microwave devices A ferrite housing is provided that includes a body for receiving at least one ferrite element therein and a plurality of mounting portions extending from and forming part of the body. ... | 06/10/2008 |
| 7356091 | Apparatus, methods and articles of manufacture for signal propagation using unwrapped phase The invention relates to a system for processing an electromagnetic input signal in which processing circuitry may be used to produce a bounded phase signal, such as by calculating an n-bit 2's compliment number in the range of [−1, 1] from phase sample informatio... | 04/08/2008 |
| 7352264 | Electronically tunable dielectric resonator circuits In order to permit electronic tuning of the frequency of a circuit including dielectric resonators, such as a dielectric resonator filter, tuning plates are employed adjacent the individual dielectric resonators. The tuning plates comprises two separate conductive p... | 04/01/2008 |
| 7343138 | Compensating for load pull in electromagentic signal propagation using adaptive impedance matching The invention relates to for processing an electromagnetic input signal, wherein the signal is passed through an input to be modified across a plurality of modifying segments using a characteristic of the signal, and wherein the plurality of segments have a pluralit... | 03/11/2008 |
| 7340007 | Apparatus, methods and articles of manufacture for pre-emphasis filtering of a modulated signal The invention is directed to a system for determining a transfer function for emphasizing an electromagnetic signal prior to being processed by determining a discrete transfer function for a processing system, such as a wideband phase modulator; determining a target... | 03/04/2008 |
| 7321588 | Serial control of radio frequency integrated circuits A serial controller for use in controlling various radio frequency (RF) modules within an RF integrated circuit is disclosed. The serial controller is coupled to an serial bus that internal to the RFIC that transmits commands and data from a microcontroller to a dat... | 01/22/2008 |
| 7317412 | Techniques for biasing a radio frequency digital to analog converter Various techniques for biasing a radio frequency digital-to-analog converter are described. In one embodiment, a baseband processor may comprise a plurality of output drivers to generate a plurality of base currents for biasing a radio frequency digital-to-analog co... | 01/08/2008 |
| 7310031 | Dielectric resonators and circuits made therefrom A dielectric resonator having variable cross-section, preferably varying monotonically, and, most preferably, the resonator being in the shape of a truncated cone. Such shapes displace the H11 mode from the TE mode in the longitudinal direction of the con... | 12/18/2007 |
| 7307479 | Handset radiofrequency front end module in fine pitch quad flat no lead (FQFP-N) package An apparatus and method for transmitting signal, the apparatus comprising a front end telecommunications module including a power amplifier, a matching circuit coupled to the power amplifier, and a filter coupled to the matching circuit, such that a signal received ... | 12/11/2007 |
| 7298854 | Apparatus, methods and articles of manufacture for noise reduction in electromagnetic signal processing Apparatus, methods and articles of manufacture are disclosed for modifying electromagnetic waves by reducing noise in those waves. A transfer function for a plurality of segments is derived through identifying a desired output parameter. That transfer function is th... | 11/20/2007 |
| 7242910 | Self-calibrating radio A self-calibrating radio is described. In one exemplary implementation, a radio signal from its local voltage controlled oscillator. The calibration system automatically calibrates the radio by: (i) receiving a reference signal having a calibrated reference frequenc... | 07/10/2007 |
| 7215193 | Method and apparatus for limiting power amplifier voltage excursions A power amplifier circuit includes a circuit topology with first and second switching elements. The first and second switching elements have a closed state and an open state, wherein current flows between the switching elements when they are both in the closed state... | 05/08/2007 |
| 7187231 | Apparatus, methods and articles of manufacture for multiband signal processing Apparatus, methods and articles of manufacture for multiband transmitter power amplification are provided wherein one or more amplifying devices, of which at least one may be one or more current sources, have impedances matched for different input and output frequen... | 03/06/2007 |
| 7170362 | Ferrite circulator having alignment members A ferrite circulator having integrated alignment members and a method for aligning a ferrite element within a ferrite circulator are provided. The ferrite circulator includes a ferrite circulator housing having a body for receiving at least one ferrite element there... | 01/30/2007 |
| 7157744 | Surface mount package for a high power light emitting diode A package for a light emitting diode (LED) including an electrically insulating substrate layer, a non-conductive layer disposed on the electrically insulating substrate layer, and a reflector layer disposed on the non-conductive layer. The electrically insulating l... | 01/02/2007 |
| 7154329 | Method and apparatus for compensating amplifier output for temperature and process variations An amplifier circuit includes a calibration circuit with a controllable circuit element such as a digital resistor. One or more properties of the controllable circuit element (e.g., the resistance in a digital resistor) is varied by a digital calibration word such t... | 12/26/2006 |
| 7151476 | Radar system having a beamless emission signature A radar system having a beamless emission signature is described. In one implementation, the radar system includes a transmission system and a receiver system. The transmission system is configured to transmit a pattern comprising a plurality of radar signals having... | 12/19/2006 |
| 7151913 | Electromagnetic wave transmitter, receiver and transceiver systems, methods and articles of manufacture The invention relates to a system for electromagnetic processing of an input wave involving receiving a modified signal derived from two or more signals that represent the input wave when combined; and regulating the modified signal using at least one characteristic... | 12/19/2006 |
| 7098845 | Apparatus for generating an integrator timing reference from a local oscillator signal A receiver circuit including an oscillator, a mixer coupled to the oscillator, a switch coupled to an output of the mixer, and an envelope detector coupled to the oscillator, such that the envelope detector generates a timing signal for actuating the switch based on... | 08/29/2006 |
| 7091693 | Battery with non-volatile memory for LMR portable radio applications An apparatus and method for monitoring and storing a status of a rechargeable battery pack in which the battery pack status is monitored by a device while the battery pack is functionally connected to that device, and then periodically updated to a non-volatile memo... | 08/15/2006 |
| 7091778 | Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission An apparatus including an amplitude mapping circuit for converting at least a portion of an amplitude signal to a binary value and a plurality of amplifiers coupled to the amplitude mapping circuit, such that the binary value is transmitted to at least one of the pl... | 08/15/2006 |
| 7088203 | Slotted dielectric resonators and circuits with slotted dielectric resonators In accordance with the principles of the present invention, a resonator puck is provided with one or more vertical and/or horizontal, radial slits that improve the quality factor, Q, of circuits constructed from the resonators. Preferably, the slits are very narrow ... | 08/08/2006 |
| 7057480 | Cross-coupled dielectric resonator circuit A cross-coupled dielectric resonator circuit. Resonator circuits in accordance with the invention may be used to build low-loss compact filters, oscillators, and other circuits, particularly microwave circuits. The resonators are arranged relatively to each other wi... | 06/06/2006 |
| 7053717 | Method and apparatus for realizing a low noise amplifier A multi-stage amplifier including a first amplifier stage including a first transistor, the first transistor selected to provide an optimum noise characteristic, and a second amplifier stage including a second transistor, the second transistor selected to provide an... | 05/30/2006 |
| 7049893 | Apparatus, methods and articles of manufacture for power amplifier control in a communication system An apparatus and method for amplifying a radiofrequency (RF) signal. The apparatus comprises a control circuit including a first transistor, a second transistor, and a ballast resistor coupled between an emitter terminal of the first transistor and a base terminal o... | 05/23/2006 |
| 7034382 | Leadframe-based chip scale package An improved leadframe-based CSP and a method of forming the leadframe-based CSP are provided. The leadframe-based CSP includes a leadframe including a die attach pad and a plurality of wire bonding pads, at least one aperture disposed in the die attach pad, at least... | 04/25/2006 |
| 7030515 | Individually biased transistor high frequency switch A single-pole multiple-throw RF switch includes first and second FET arrangements, each having a gate and a controlled current path (CCP). One end of the CCP of each FET is connected to a common port by way of an arrangement which blocks DC flow between the FETs, bu... | 04/18/2006 |
| 7002426 | Above resonance isolator/circulator and method of manufacture thereof An above resonance circulator/isolator and method for manufacturing the same is described. In one implementation, the above resonance circulator/isolator includes a magnet, a spacer, a single ferrite element, a center conductor and a pole piece. The center conductor... | 02/21/2006 |
| 6992529 | Apparatus, methods and articles of manufacture for a dual mode amplifier The invention is directed to a system for electromagnetic communications that includes a semiconductor die; at least one amplifier on the die to amplify an input signal and generate an output signal; and an active bias control component on the die for adjusting bias... | 01/31/2006 |
| 6984870 | High speed cross-point switch using SiGe HBT technology A high-speed cross-point switch is built on a preferably silicon substrate and uses bipolar transistor switching elements. Preferably, the bipolar transistors are SiGe bipolar junction transistors. Intersecting conductive input and output microstrips are preferably ... | 01/10/2006 |
| 6968198 | Data passing method and apparatus for wireless communication system The invention is a method and apparatus in which data can be transferred between a mobile node and a fixed based node in a wireless local area network through a data passing scheme in which data can be bounced between a base node and an out-of-range mobile node thro... | 11/22/2005 |
