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AmplifiersBelow are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application. 12/05/2013 > 13 patent applications in 10 patent subcategories.
20130321075 - Method for compensating signal distortions in composite amplifiers: A method for compensating signal distortions in multiple transmitting branches entering a composite amplifier.... Agent: Telefonaktiebolaget L M Ericsson (publ)
20130321076 - Assisting a load current of a switching voltage regulator: Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One method includes generating, by a switching controller, a switching voltage through controlled closing and opening of a series switch element and a shunt switch element, and generating an output voltage by filtering the switching voltage... Agent: R2 Semiconductor, Inc.
20130321077 - Switchable vramp limiter: A power amplification device is disclosed that includes a power amplification circuit operable to amplify a radio frequency (RF) signal in accordance with an amplification gain, and a voltage regulation circuit operable to generate a regulated voltage. A regulated voltage level of the regulated voltage sets the amplification gain. To... Agent: Rf Micro Devices, Inc.
20130321078 - Distortion compensation apparatus and distortion compensation method: A distortion compensation apparatus including: a processor configured to generate a pre-distortion signal by compensating an input signal for a distortion based on a distortion compensation coefficient and a plurality of delayed signals obtained by delaying the input signal by a plurality of amounts of delay, and an amplifier configured... Agent: Fujitsu Limited
20130321079 - Switching amplifier with embedded harmonic rejection filter: A switching amplifier with an embedded harmonic rejection filter is disclosed. In an exemplary design, the switching amplifier includes a generator circuit and a plurality of output circuits. The generator circuit receives an input signal and a carrier signal at a carrier frequency and generates a plurality of versions of... Agent: Qualcomm Incorporated
20130321080 - Cmos linear differential distributed amplifier and distributed active balun: A CMOS distributed amplifier with distributed active input balun is disclosed. Each gm cell within the distributed amplifier employs dual-output two-stage topology that improves gain and linearity without adversely affecting bandwidth and power.... Agent:
20130321081 - Regulated cascode current mirror scheme for transconductance amplifiers: There is described an amplification stage comprising: a current mirror circuit comprising a reference transistor arranged to receive a current associated with an input signal and an output transistor providing a current source for an output signal line; a current sink to the output signal line, under the control of... Agent: Nujira Limited
20130321082 - Semiconductor apparatus comprised of two types of transistors: A semiconductor apparatus that includes two types of transistors is disclosed. The first semiconductor chip includes the first semiconductor device of a type of GaAs-HEMT, while, the second semiconductor chip includes the second semiconductor device of another type of GaN-HEMT. The second semiconductor device is formed in a SiC substrate,... Agent:
20130321083 - Power supply regulation for programmable gain amplifier used in a cmos image sensor: An image sensor array that uses an over saturation sensor to detect when one of the pixels is being oversaturated. When that happens, the power supply to that pixel is prevented from affecting power supplies to the other pixels, by regulating the power supply to the pixel.... Agent: Forza Silicon Corporation
20130321084 - Apparatus and method for use with an amplifier circuit: An output network for use with a multi-transistor amplifier circuit comprises N transistors configured to provide a Chireix outphasing behaviour. The N transistors coupled to receive different amplitude and/or phase signals relative to a source signal. The output network comprises: a plurality of branches arranged in a hierarchical structure between... Agent: Telefonaktiebolaget L M Ericsson (publ)
20130321085 - Adaptive biasing scheme for an amplifier: There is provided a bias arrangement for an amplifier adapted to amplify a varying input signal, the arrangement comprising a control circuit arranged to adaptively vary a bias current to the amplifier in dependence on an envelope of the varying input signal.... Agent: Nujira Limited
20130321086 - Bias circuit and power amplifier having the same: There are provided a bias circuit supplying different levels of bias power according to respective power modes through a simple circuit configuration, and a power amplifier having the same. The bias circuit includes: a bias setting unit setting a bias power voltage level by switching reference power having a pre-set... Agent: Samsung Electro-mechanics Co., Ltd.
20130321087 - Low voltage high efficiency gallium arsenide power amplifier: A low voltage, switch mode PHEMT power amplifier with a 0.1 μm gate length and a low loss, lumped element, output matching circuit is disclosed that provides high performance over a frequency range of 1.4 GHz-2.5 GHz. The amplifier makes use of monolithic circuit technology for the first stage and... Agent: Bae Systems Information And Electronic Systems Integration Inc.11/28/2013 > 12 patent applications in 9 patent subcategories.
20130314153 - Collector boost: Embodiments of power amplification devices are described that include a power amplification circuit, a first voltage regulation circuit, and a second voltage regulation circuit. The voltage regulation circuits are configured to provide regulated voltages to the power amplification circuit. The power amplification device also includes a threshold detection circuit to... Agent: Rf Micro Devices, Inc.
20130314154 - Signal processing apparatus and method and communication apparatus: The present disclosure provides a signal processing apparatus including: a short-circuiting controlling section configured to control whether or not the input side of a resistor connected between an input terminal and an output terminal and the output terminal are to be short-circuited in response to a signal level of a... Agent: Sony Corporation
20130314155 - Signal level conversion circuit, physical quantity detection device and electronic apparatus: A signal level conversion circuit 1 includes a first differential amplifier circuit 10 and a second differential amplifier circuit 20. The first differential amplifier circuit 10 multiplies a potential difference between a first input signal and a second input signal by G1 thereby providing an output signal. The second differential... Agent: Seiko Epson Corporation
20130314158 - Semiconductor device and communication device: A semiconductor device capable of achieving high speed performance in addition to correction of differential offset and a communication device provided with the semiconductor device are provided. For example, there are provided: a variable gain type differential amplifier circuit VGA1 which receives a gain setting signal ASET, which amplifies differential... Agent:
20130314156 - Variable gain amplifier: A method may include applying an input differential voltage to input terminals of an amplifier, a first input terminal coupled to a gate of a first transistor and a second input terminal coupled to a gate of a second transistor. The method may also include varying a gain of the... Agent: Fujitsu Limited
20130314157 - Variable gain amplifier: The embodiments of the present invention disclose a variable gain amplifier and relate to the field of electronic circuits. The linear-in-dB relationship between an output current and a control voltage of the variable gain amplifier is relatively ideal. The variable gain amplifier includes a fitted differential module group and an... Agent: Huawei Technologies Co., Ltd.
20130314159 - Operational transconductance amplifier with increased current sinking capability: An amplifier circuit includes an input terminal and an output terminal. A current sinking transistor includes a first conduction terminal coupled to the output terminal and a second conduction terminal coupled to a reference supply node. A voltage sensing circuit has a first input coupled to the input terminal and... Agent: Stmicroelectronics (shenzhen) R&d Co. Ltd.
20130314160 - Low noise amplifier and saw-less receiver with low-noise amplifier: A low noise amplifier is used to amplify a differential input pair to generate a differential output pair. The low noise amplifier includes two main paths, two assistant circuits and two adders to make noise carried on two output signals of the differential output pair be the same; therefore, the... Agent: Mediatek Inc.
20130314161 - Signal processor, signal processing method and communication device: Disclosed herein is a signal processor including: a plurality of parallel-connected variable gain amplification sections with variable gains; and a control section adapted to control the potentials of control terminals of each of the variable gain amplification sections and make transitions in the control terminal potentials according to different input... Agent: Sony Corporation
20130314162 - Amplifier arrangement: An amplifier arrangement for amplifying a radio signal comprising at least a first amplifier module and a second amplifier module is presented wherein a splitter stage for dividing an amplifier stage input signal into several signal portions. The signal portions are amplified in the at least two parallel amplifier modules.... Agent: Ubidyne, Inc.
20130314163 - Integrated stacked power amplifier and rf switch architecture: Combination circuitry includes a relatively small preamplifier and includes hybrid circuitry. The hybrid circuitry is configured to perform mode switching while also performing some amplification, thus allowing the relatively small preamplifier to be smaller than a conventional power amplifier. In one embodiment, the hybrid circuitry includes first series portion configured... Agent: Rf Micro Devices, Inc.
20130314164 - Low-noise amplifier with impedance boosting circuit: A low-noise amplifier (300) is provided which comprises an input circuit (301) configured to operate with a variable bias current and an impedance boosting circuit (314) electrically connected to the input circuit (301). The impedance boosting circuit (314) comprises at least one switch (316) and at least one tail inductor... Agent: Telefonaktiebolaget L M Ericsson (publ)11/21/2013 > 15 patent applications in 11 patent subcategories.
20130307615 - Dc-dc converter for envelope tracking: Embodiments provide a DC-DC converter (DC-DC=direct current to direct current) for envelope tracking. The DC-DC converter includes a digital control stage and a driving stage. The digital control stage is configured to provide a digital control signal based on digital information describing an amplitude of a digital baseband transmit signal.... Agent: Intel Mobile Communications Gmbh
20130307617 - Pseudo-envelope following power management system: Embodiments disclosed in the detailed description relate to a pseudo-envelope follower power management system used to manage the power delivered to a linear RF power amplifier.... Agent: Rf Micro Devices, Inc.
20130307616 - Snubber for a direct current (dc)-dc converter: Circuitry, which includes a direct current (DC)-DC converter having a first switching power supply is disclosed. The first switching power supply includes a first switching converter, an energy storage element, a first inductive element, which is coupled between the first switching converter and the energy storage element, and a first... Agent: Rf Micro Devices, Inc.
20130307618 - Linearizing a power amplifier: A circuit for linearizing a power amplifier. The circuit includes a main signal path comprising a digital-to-analog converter, wherein a main signal is transmitted through the main signal path to said power amplifier; and a digital pre-distortion path disposed outside of the main signal path, wherein the digital pre-distortion path... Agent:
20130307619 - Traveling wave amplifier with suppressed jitter: A traveling wave amplifier (TWA) with suppressed jitter is disclosed. The TWA includes a plurality of unit amplifiers with the differential arrangement comprised of a pair of transistors and a cascade transistors connected in series to the switching transistors. The unit amplifiers further includes current sources to provide idle currents... Agent: Sumitomo Electric Industries, Ltd.
20130307620 - Signal amplifying circuit with reduced output signal noise by introducing coupling effect and related method thereof: A signal amplifying circuit includes: an input stage circuit, arranged to receive an input signal; a first inductive device coupled between the input stage circuit and a first reference voltage; an output stage circuit arranged to generate an output signal according to the input signal; and a second inductive device... Agent:
20130307621 - Vramp limiting using resistors: Power amplification devices are described, which are configured to amplify a radio frequency (RF) transmission signal. The power amplification device includes a voltage regulation circuit and a power amplification circuit. The voltage regulation circuit is configured to generate a regulated voltage for the power amplification device from a supply voltage... Agent: Rf Micro Devices, Inc.
20130307622 - Differential amplifier circuit having plural current mirror circuits: Disclosed herein is a differential amplifier circuit that includes: first and second transistors coupled to form a differential circuit; a first current mirror circuit generating first and second currents in response to a third current flowing through the first transistor; and a second current mirror circuit generating a fourth current... Agent: Elpida Memory, Inc.
20130307623 - Amplifier circuits with reduced power consumption: Various embodiments of an amplifier circuit are provided. In one embodiment, the amplifier circuit includes an input differential circuitry configured to convert a pair of input differential voltage signals to a pair of differential current signals. The amplifier circuit includes a cascode circuitry operable to mirror the pair of differential... Agent: Texas Instruments Incorporated
20130307624 - Integrated technique for enhanced power amplifier forward power detection: A power amplifier has power detection capabilities that include a radio frequency (RF) power amplifier that has a gain stage that includes a gain stage input, a gain stage output, and a feedback loop coupled between an input and an output of the power amplifier. A detection circuit has a... Agent: Microsemi Corporation
20130307625 - Integrated start-up bias boost for dynamic error vector magnitude enhancement: Devices and methods for correcting for start-up transients in integrated power amplifiers are disclosed. A delay element is arranged to produce a delay waveform signal that is responsive to an input voltage signal. A transconductance element has an input that receives the delay waveform signal and is arranged to provide... Agent: Microsemi Corporation
20130307626 - Silicon-on-insulator high power amplifiers: Illustrative embodiments of power amplifiers and associated methods are disclosed. In at least one embodiment, a method may include fabricating a power amplifier in a first silicon layer of a silicon-on-insulator (SOI) substrate, wherein the SOI substrate comprises the first silicon layer, a second silicon layer, and a buried oxide... Agent:
20130307627 - Integrated start-up bias boost for dynamic error vector magnitude enhancement: Devices and methods for correcting for start-up transients in integrated power amplifiers are disclosed. A delay element is arranged to produce a delay waveform signal that is responsive to an input voltage signal. A transconductance element has an input that receives the delay waveform signal and is arranged to provide... Agent:
20130307628 - Radio frequency power amplifier and packaging and fabrication method thereof: A radio frequency (RF) power amplifier includes: a pre-stage amplifier configured to amplify an input power to the RF power amplifier; and a post-stage amplifier configured to amplify an output power of the pre-stage amplifier; wherein the pre-stage amplifier comprises a CMOS (Complementary Metal Oxide Semiconductor) amplifier, and the post-stage... Agent: Nationz Technologies Inc.
20130307629 - Power amplification circuit: A power amplification circuit amplifies and then outputs transmission signals of a first frequency and a second frequency, which are different from each other. When the transmission signal of the first frequency is input, a first switch is turned ON, a first LC parallel resonant circuit enters a resonant state... Agent: Murata Manufacturing Co., Ltd.11/14/2013 > 11 patent applications in 8 patent subcategories.
20130300498 - Methods, systems, and computer program products for low power multimode interconnect for lossy and tightly coupled multi-channel: Methods, systems, and computer readable media for low power multimode interconnect for lossy and tightly coupled multi-channel are disclosed. According to one aspect, a system for low power multimode interconnect includes a receiver for receiving a plurality of input signals that have been encoded by a multimode encoding equation to... Agent:
20130300499 - Programmable wide-band radio frequency feed network: The programmable wide-band radio frequency feed network is a wideband multi-port microwave/RF feed network that can operate with multiple communication bands covering a wide frequency range. In addition, the feed network is programmable via a digital controller and has two degrees of freedom, viz., amplitude and phase variations. The feed... Agent: King Fahd University Of Petroleum And Minerals
20130300500 - Method and apparatus for filter-less class d audio amplifier emi reduction: An audio system includes a speaker and a class D amplifier with a class-D PWM (pulse width modulation) modulator configured for generating first and second PWM signals, each with three differential output levels. The class-D amplifier also has a differential output driver configured for driving a first and a second... Agent: Nuvoton Technology Corporation
20130300501 - Bandwidth extension of an amplifier: An amplifier may include a gain stage configured to convert an input voltage signal to a current signal and to amplify the input voltage signal according to a gain. The amplifier may also include a buffer stage coupled to the gain stage at an internal node. The buffer stage may... Agent: Fujitsu Limited
20130300503 - Programmable-gain amplifier: An integrated circuit (IC) includes a programmable gain amplifier. The programmable gain amplifier comprises a first-stage amplifier configured to operate with at least one relatively high power supply voltage in order to accommodate at the input of the first-stage amplifier a relatively large range of input signals, the first-stage amplifier... Agent: That Corporation
20130300502 - Variable-gain low noise amplifier: The present disclosure relates to variable-gain low noise amplifiers and RF receivers. An exemplary method for processing a RF signal provides a low noise amplifier with main and auxiliary amplifier modules. When a selection indicates the low noise amplifier operating in a high-gain mode, the main and auxiliary amplifier modules... Agent: Mstar Semiconductor, Inc.
20130300504 - Bias control for push-pull amplifier arrangement: An amplification stage comprising: a combiner to generate a sum input signal by combining a voltage signal with a DC bias voltage; a subtractor to generate a difference input signal by subtracting the voltage signal from the DC bias voltage; a first transistor for generating a first part of an... Agent:
20130300505 - Rf power amplifier: A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which... Agent: Renesas Electronics Corporation
20130300506 - Accurate bias tracking for process variation and supply modulation: A current mirror includes a bias branch, which includes first and second transistors in series between a voltage source and ground, a voltage divider coupled between the voltage source and ground, an op-amp configured to receive a divided voltage of the voltage divider and a voltage of a node between... Agent: Marvell World Trade Ltd.
20130300507 - Power amplifier with feedback impedance for stable output: An amplifier circuit amplifies a signal for wireless transmission. A feedback circuit, including a capacitor, is coupled to the amplifier circuit. Components of the feedback circuit are selected based on a feedback factor such that an input impedance to the amplifier circuit has a same impedance characteristic as a feedback... Agent: Marvell World Trade Ltd.
20130300508 - Amplifier circuit and method of amplifying a signal in an amplifier circuit: An amplifier circuit, comprising: an input, for receiving an input signal to be amplified; a power amplifier, for amplifying the input signal; a switched power supply, having a switching frequency, for providing at least one supply voltage to the power amplifier; and a dither block, for dithering the switching frequency... Agent:Previous industry: Demodulators
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