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Amplifiers

Below 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.
  
01/22/2015 > 8 patent applications in 8 patent subcategories.

20150022264 - Sense amplifier offset voltage reduction: A circuit includes a plurality of transistors responsive to a plurality of latches that store a test code. The circuit further includes a first bit line coupled to a data cell and coupled to a sense amplifier. The circuit also includes a second bit line coupled to a reference cell... Agent: Qualcomm Incorporated

20150022265 - Adaptive boost supply with slope control: An apparatus includes a first circuit configured to generate a boost voltage, and a second circuit to control a slope of a magnitude of the boost voltage when the magnitude of the boost voltage is reduced. The first circuit is configured to generate the boost voltage having the magnitude equal... Agent:

20150022266 - Folded cascode amplifier: Exemplary embodiments are directed to systems, devices, and methods for enhancing an amplifier. An amplifier may include a first cascode circuit including a first transistor and a second transistor. The amplifier may include a second cascode circuit coupled to a differential output and including a first pair of transistors including... Agent:

20150022267 - Apparatus and methods for electronic amplification: Apparatus and methods for electronic amplification are provided. In one embodiment, an amplifier includes first and second input terminals, an amplification circuit, a feedback circuit, and a current mirror. The amplification circuit includes a non-inverting voltage input electrically connected to the first input terminal and to a bias voltage, an... Agent:

20150022268 - Dc offset cancellation circuit: A DC offset cancellation circuit is provided. The DC offset cancellation circuit includes a first operational amplifier and a feedback gain circuit. The first operational amplifier includes a first input transconductance stage, a second input transconductance stage and an output stage. An input terminal of the first input transconductance stage... Agent: Novatek Microelectronics Corp.

20150022269 - Device and method for controlling an input signal of a power amplifier: A method for controlling an input signal of a power amplifier is provided. The method comprise applying CFR to the input signal to obtain a processed input signal; determining a minimum CFR threshold; comparing the peak power of the power amplifier and an allowable peak power; and if the peak... Agent: Telefonaktiebolaget L M Ericsson (publ)

20150022270 - Dual-band high efficiency doherty amplifiers with hybrid packaged power devices: An amplifying structure includes a main amplifier configured to amplify a first signal; and a peak amplifier configured to amplify a second signal, each of the main amplifier and the peak amplifier including, respectively, a hybrid power device, the hybrid power device including, a first power transistor die configured to... Agent: Alcatel-lucent Canada Inc.

20150022271 - Dynamic amplifier supply: A method of providing a power supply of an amplifier of a wireless transmission system comprising, determining the power at an antenna when transmitting a signal to be transmitted by the amplifier, determining the modulation scheme for transmitting the signal, determining the frequency allocation of the signal to be transmitted,... Agent:

  
01/15/2015 > 14 patent applications in 8 patent subcategories.

20150015327 - Controller and method for controlling a signal processor: A controller for controlling a signal processor includes a transformation unit and a control unit. The transformation unit is configured to generate at least one amplitude-modulation-to-phase-modulation-distortion within a signal, output by using the signal processor according to a signal processing, based on generated at least one amplitude-modulation-to-amplitude-modulation-distortion of the signal.... Agent:

20150015328 - Pre-distortion method and associated apparatus and non-transitory machine readable medium: A pre-distortion method includes: receiving an input data; and obtaining a pre-distorted output by inputting the input data into a pre-distortion function, wherein the pre-distortion function is determined according to a power amplifier. A pre-distortion apparatus includes a receiver and a pre-distortion unit. The receiver is utilized for receiving an... Agent:

20150015329 - Radio frequency composite class-s power amplifier having discrete power control: A composite amplifier providing digitally selectable amplification includes a plurality of channels and a combiner. Each of the channels includes a digitally controllable selector, a Class-S power amplifier, and bandpass filter. The digitally controllable selector selectively couples a digital bitstream to the amplifier. The amplifier receives the digital bitstream and... Agent: Lsi Corporation

20150015330 - Differential-to-single-end converter: A converter that converts a differential input signal to a single-end output signal is provided. The converter includes first, second, third and fourth transistors, and a pair of current sources. The first and second transistors are driven by the differential input signal, and have two conduction nodes coupled to each... Agent:

20150015331 - Method and circuit for controlled gain reduction of a differential pair: The present document relates to multi-stage amplifiers, such as linear regulators or linear voltage regulators (e.g. low-dropout regulators) configured to provide a constant output voltage subject to load transients. A multi-stage amplifier is described, having a differential amplification stage which comprises a differential transistor pair. The differential amplification stage is... Agent: Dialog Semiconductor Gmbh

20150015332 - Method and circuit for controlled gain reduction of a gain stage: The present document relates to multi-stage amplifiers, such as linear regulators or linear voltage regulators (e.g. low-dropout regulators) configured to provide a constant output voltage subject to load transients. A multi-stage amplifier is described. The multi-stage amplifier comprises a first amplification stage configured to provide a stage output voltage at... Agent: Dialog Semiconductor Gmbh

20150015334 - Analog circuits having improved transistors, and methods therefor: Circuits are disclosed that may include a plurality of transistors having controllable current paths coupled between at least a first and second node, the transistors configured to generate an analog electrical output signal in response to an analog input value; wherein at least one of the transistors has a deeply... Agent:

20150015333 - Differential measurements with a large common mode input voltage: An apparatus comprises a differential amplifier circuit and a current source. The differential amplifier circuit is configured to receive a voltage at an input, wherein the differential amplifier circuit generates an output voltage having a magnitude proportional to the received voltage over a voltage range to be measured at a... Agent: Fairchild Semiconductor Corporation

20150015336 - Cmos cascode power cells: A circuit includes a first CMOS device forming a gain stage of a power amplifier and a second CMOS device forming a voltage buffer stage of the power amplifier. The first CMOS device includes a first doped well formed in a substrate, a first drain region and a first source... Agent: Taiwan Semiconductor Manufacturing Co., Ltd.

20150015337 - Modular approach for reducing flicker noise of mosfets: In one example implementation, the present disclosure provides a modular approach to reducing flicker noise in metal-oxide semiconductor field-effect transistors (MOSFETs) in a device. First, a circuit designer may select one or more surface channel MOSFETs in a device. Then, the one or more surface channel MOSFETs are converted to... Agent: Analog Devices, Inc.

20150015338 - Power amplifier: There is provided a power amplifier capable of readily reducing odd-order harmonic waves even in high frequencies. This power amplifier includes n current sources (where “n” is a natural number equal to or greater than 3) that cause predetermined currents to flow; n switches that open and close current paths... Agent:

20150015335 - Sense amplifier layout for finfet technology: A sense amplifier (SA) comprises a semiconductor substrate having an oxide definition (OD) region, a pair of SA sensing devices, a SA enabling device, and a sense amplifier enabling signal (SAE) line for carrying an SAE signal. The pair of SA sensing devices have the same poly gate length Lg... Agent:

20150015339 - Power amplifier architectures with input power protection circuits: An RF power amplifier circuit and input power limiter circuits are disclosed. A power detector generates a voltage output proportional to a power level of an input signal. There is a directional coupler with a first port connected to a transmit signal input, a second port connected to the input... Agent: Rfaxis, Inc.

20150015340 - Variable switched dc-to-dc voltage converter: A voltage converter can be switched among two or more modes to produce an output voltage tracking a reference voltage that can be of an intermediate level between discrete levels corresponding to the modes. One or more voltages generated from a power supply voltage, such as a battery voltage, can... Agent:

  
01/08/2015 > 5 patent applications in 5 patent subcategories.

20150008980 - Apparatus and method for matching harmonics: An apparatus of a power amplifier is provided. The apparatus includes an input boosting circuit configured to match a second harmonic input signal using a harmonic control circuit of an input stage to maximize an efficiency and an output power, a die cell configured to receive and amplify an output... Agent:

20150008981 - Repair operational amplifier circuit and operating method thereof: A repair operational amplifier circuit including a repair operational amplifier and a slew rate enhancing module. The repair operational amplifier includes an input terminal and an output terminal. The input terminal is used to receive an input signal. The output terminal is used to output an output signal. The slew... Agent:

20150008982 - Adaptive harmonic distortion suppression in an amplifier utilizing negative gain: Techniques are described herein that adaptively suppress harmonic distortion in an amplifier utilizing negative gain. The amplifier includes a first amplifier stage and a second amplifier stage, which are coupled in parallel. The first amplifier stage has a positive gain. The second amplifier stage has a negative gain to suppress... Agent: Broadcom Corporation

20150008983 - Amplifying apparatus: An amplifying apparatus, including an amplitude-phase conversion unit to separate an input signal into first and second signals, wherein a phase difference between the first and second signals depends on an amplitude of the input signal, a first amplifying unit, a first matching circuit including a main line and a... Agent:

20150008984 - Circulator power amplifier circuit and design method therefor: The present invention provides a circulator power amplifier circuit and a connection method thereof. Wherein, the circulator power amplifier circuit includes a power amplifier, a circulator, a power load and a load. An output end of the power amplifier is connected to an input end of the circulator, the load... Agent: Zte Corporation

  
01/01/2015 > 16 patent applications in 9 patent subcategories.

20150002220 - Method of power amplifier calibration: The exemplary embodiments include methods, computer readable media, and devices for calibrating a non-linear power detector of a radio frequency device based upon measurements of the non-linear power detector output and the associated power amplifier output level, and a set of data points that characterize a nominal non-linear power detector.... Agent:

20150002221 - Instrumentation amplifier and signal amplification method: An instrumentation amplifier includes a first amplifier having one input connected to a first input of the instrumentation amplifier, a second amplifier having one input connected to a second input of the instrumentation amplifier, and a feedback network. The feedback network including an active filter having a first low pass... Agent: Imec Vzw

20150002222 - Combined input stage for transconductance amplifier having gain linearity over increased input voltage range: First and second transconductance amplifier input stages having first and second gain characteristics, respectively, are combined. The resulting combined input stage has a third gain characteristic with a linear range that is larger than a linear range of either of the first and second gain characteristics.... Agent: Texas Instruments Incorporated

20150002223 - Bias circuit: A bias circuit includes a first p-n junction element supplied with a current by a first current source connected to a low-voltage side of the first p-n junction element and a base terminal of a second transistor, a second p-n junction element supplied with a current by a second current... Agent: Hitachi, Ltd.

20150002224 - Bias circuit and power amplifier with selection function of power mode: There are provided a bias circuit and a power amplifier. The bias circuit includes a first temperature compensating unit connected between an operating voltage terminal and a ground and operating according to a reference voltage to generate a turn-on voltage, a second temperature compensating unit connected between a reference voltage... Agent: Samsung Electro-mechanics Co., Ltd.

20150002225 - Low-noise amplifier: A common source or common emitter LNA circuit for amplifying signals at an operating frequency f in a receiver circuit is disclosed. The LNA circuit comprises an input transistor arranged to, in operation, be biased to have a transconductance gm at the operating frequency f, and having a first terminal,... Agent:

20150002228 - Amplifier with improved noise reduction: An amplifier with improved noise reduction is disclosed. In an exemplary embodiment, an apparatus includes at least one capacitor configured to receive an adjustable current and generate a corresponding ramp voltage configured to control coupling between a main amplifier output and a secondary amplifier output. The apparatus also includes at... Agent: Qualcomm Incorporated

20150002230 - Doherty amplifier: A Doherty amplifier has at least one peaking amplifier which has first and second drain connections, wherein the first drain connection is connected to the output network, and the other second drain connection is connection to the load. By providing two drain connections, separate package leads to the peaking amplifier... Agent:

20150002227 - Mmic power amplifier: A microwave integrated circuit includes a substrate and a power amplifier on the substrate. The power amplifier includes a power divider circuit having an input configured to receive an input RF signal, a base amplifier having an input coupled to a first output of the power divider circuit and a... Agent: Cree, Inc.

20150002226 - Semiconductor package having wire bond wall to reduce coupling: A system and method for a package including a wire bond wall to reduce coupling is presented. The package includes a substrate, and a first circuit on the substrate. The first circuit includes a first electrical device, a second electrical device, and a first wire bond array interconnecting the first... Agent: Freescale Semiconductor, Inc.

20150002229 - Semiconductor packages having wire bond wall to reduce coupling: A device (e.g., a Doherty amplifier) housed in an air cavity package includes one or more isolation structures over a surface of a substrate and defining an active circuit area. The device also includes first and second adjacent circuits within the active circuit area, first and second leads coupled to... Agent: Freescale Semiconductor, Inc.

20150002231 - Quiescent current equalization method, output stage circuit, class ab amplifier and electronic device: An output stage circuit is provided, which includes a power supply, a quiescent current control circuit, an output circuit, and a quiescent current equalization circuit. The quiescent current equalization circuit is configured to decrease or increase a quiescent current flowing through a quiescent current biasing circuit in the quiescent current... Agent:

20150002233 - Control loop for amplification stage: There is disclosed a method and apparatus for generating an output signal comprising a replica of an input signal, comprising the steps of: generating a replica signal representing the low frequency content of the input signal; generating an error signal representing an error in the replica signal; combining the replica... Agent:

20150002235 - Dynamic headroom for envelope tracking: Techniques for dynamically generating a headroom voltage for an envelope tracking system. In an aspect, an initial headroom voltage is updated when a signal from a power amplifier (PA) indicates that the PA headroom is insufficient. The initial headroom voltage may be updated to an operating headroom voltage that includes... Agent:

20150002232 - Power supply device for high frequency power amplification circuit and high frequency power amplification device: In a power supply device, bidirectional converters that are each capable of supplying or regenerating an electric charge are provided between an input section for an input voltage and an output section for an output voltage. An amplitude change monitor circuit detects an envelope of an RF input signal. A... Agent:

20150002234 - Timing alignment for modulated supply: There is disclosed a method, in an amplifier stage comprising an amplifier and a modulated supply, the amplifier being arranged to amplify an input signal and the modulated supply being arranged to generate a supply voltage for the amplifier by tracking an envelope of the signal to be amplified, the... Agent:

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