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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.
  
08/07/2014 > 15 patent applications in 12 patent subcategories.

20140218103 - Lock-in amplifier with phase-synchronous processing: The presented device is the combination of a lock-in amplifier unit (1) and a phase-synchronous processing unit (2). This combination leads to a multitude of valuable signal analysis and conditioning possibilities. Amongst others, these possibilities include (i) extraction of time-domain properties of the input signal, (ii) extraction of statistical properties... Agent:

20140218104 - Power amplification device: A power amplification device of the present invention includes a delta-sigma modulator which performs a multilevel delta sigma modulation on amplitude signals of input signals, a plurality of power amplifiers which amplify carrier signals, an encoder which generates a first control signal that controls ON/OFF of the outputs from said... Agent: Nec Corporation

20140218105 - Amplifier and amplifying method: An amplifier includes: an amplifying device configured to amplify an input signal; and a matching circuit coupled to the amplifying device, and including an impedance transformer and a parallel resonance circuit coupled to a wiring which spans from the impedance transformer to the amplifying device, wherein a circuit length of... Agent: Fujitsu Limited

20140218106 - Power amplifier power controller: A power amplifier power controller in the power amplifier system monitors various operating conditions of the power amplifier, and controls the output transmit power of the power amplifier by coordinated control of both the input drive level to the power amplifier and the gain of the power amplifier. The power... Agent: Quantance, Inc.

20140218107 - Method and apparatus for applying predistortion to an input signal for a nonlinear power amplifier: Aspects disclosed herein relate to providing an efficiently predistorted input signal to a high-efficiency PA. A wireless communications device may be include a power amplifier and a processor that is associated with a predistortion module. In an aspect, the processor may be a modem, a RF chip, etc. In one... Agent: Qualcomm Incorporated

20140218108 - Timing alignment for power amplifier: There is described a method of controlling signal alignment in a power amplifier, comprising: receiving an input signal to be amplified; receiving a supply voltage for the power amplifier, the supply voltage being derived in dependence on the signal to be amplified; amplifying the input signal to produce an output... Agent: Nujira Limited

20140218109 - 2g support for 2g and 3g/4g envelope tracking modulator: There is provided an amplification stage including an envelope tracking modulated supply for tracking a reference signal, comprising a low frequency path for tracking low frequency variations in the reference signal and for providing a first output voltage, and a high frequency path for tracking high frequency variations in the... Agent: Nujira Limited

20140218110 - Sensing amplifier using capacitive coupling to realize dynamic reference voltage: A sensing amplifier using capacitive coupling and a dynamic reference voltage, where the sensing amplifier circuit includes a bit line, configured to receive charging and discharging signals; a sensing amplifier, connected to the bit line and configured to receive the bit line and a reference voltage for comparison and configured... Agent: National Tsing Hua University

20140218111 - Operational amplifier circuit and method for enhancing driving capacity thereof: An operational amplifier circuit configured to drive a load is provided. The operational amplifier circuit includes an output stage module. The output stage module includes a detection circuit and an output stage circuit. The detection circuit is configured to detect a current output voltage and a previous output voltage based... Agent: Novatek Microelectronics Corp.

20140218112 - Compensation circuitry and method for amplifiers driving large capacitive loads: An operational amplifier (10) capable of driving a capacitive load (CLOAD) and/or a resistive load (RLOAD) includes a first gain stage (2) having an output coupled to a high impedance node (3) and a second gain stage (5) having an input coupled to the first high impedance node. A gain... Agent: Texas Instruments Incorporated

20140218113 - Dynamic feed-forward opamp-based circuit: A dynamic feed-forward OPAMP-based circuit is provided. A first amplifying stage amplifies a pair of input differential signals to provide a pair of intermediate differential signals. A second amplifying stage amplifies the pair of intermediate differential signals to provide a pair of output differential signals. A first capacitor is coupled... Agent: Mediatek Inc.

20140218114 - Complementary low noise transductor with active single ended to differential signal conversion: A method includes, in at least one aspect, receiving, at both an input node of a first input stage and in input node of a second input stage, a single-ended voltage signal; providing, by at least one of the first input stage or the second input stage, inductive degeneration to... Agent: Marvell World Trade Ltd.

20140218115 - Current compensation circuit, method and operational amplifier: Disclosed is a current compensation circuit. During calibration of a compensation current, a digital control circuit delivers a digital signal with values varying over time to a current compensation array, the current compensation array outputs different amounts of compensation current based on the digital signal with values varying over time,... Agent:

20140218116 - Power amplifier apparatus and power amplifier circuit: The present invention relates to a power amplifier apparatus and a power amplifier circuit thereof, the power amplifier circuit uses Doherty circuit structure, and the final stage power amplifier circuit uses high electron mobility transistor (HEMT) power amplifiers to achieve a Carrier amplifier with the Doherty circuit structure and a... Agent: Zte Corporation

20140218117 - Dcm and pfm management: The present invention relates to a voltage regulating device comprising a power stage (30) comprising an inductor (L) between a first node (P1) and a second node (P2); a first switch (A) between the first node (Pi) and a power supply node (P3) for which the potential (Vbat) is non-zero... Agent:

  
07/31/2014 > 15 patent applications in 12 patent subcategories.
  
07/24/2014 > 11 patent applications in 9 patent subcategories.

20140203868 - Communications based adjustments of a parallel amplifier power supply: A parallel amplifier and a parallel amplifier power supply are disclosed. The parallel amplifier power supply provides a parallel amplifier power supply signal, which is adjustable on a communications slot-to-communications slot basis. During envelope tracking, the parallel amplifier regulates an envelope power supply voltage based on the parallel amplifier power... Agent: Rf Micro Devices, Inc.

20140203869 - Communications based adjustments of an offset capacitive voltage: A parallel amplifier and an offset capacitance voltage control loop are disclosed. The parallel amplifier has a parallel amplifier output, which is coupled to an envelope tracking power supply output via an offset capacitive element. The offset capacitive element has an offset capacitive voltage. The offset capacitance voltage control loop... Agent: Rf Micro Devices, Inc.

20140203870 - Power mosfets with improved efficiency for multi-channel class d audio amplifiers and packaging therefor: A stereo class-D audio system includes a first die including four monolithically integrated NMOS high-side devices and a second a second die including, four monolithically integrated PMOS low-side devices. The audio system also includes a set of electrical contacts for connecting the high and low-side devices to components within the... Agent: Advanced Analogic Technologies Incorporated

20140203871 - Zero-voltage-switching contour based outphasing power amplifier: A zero-voltage-switching contour based outphasing power amplifier having two class-E power amplifiers connected in an out-phasing architecture coupled on opposite sides of a load being driven. The pair of class-E power amplifiers receive separate digital drive signals with an amount of phase difference that is adjusted based on the load.... Agent: The Regents Of The University Of California

20140203872 - Low-noise amplifier, receiver, method and computer program: A differential cross-coupled common-source or common-emitter low-noise amplifier having capacitive degeneration is disclosed. Further, a radio receiver comprising such a low-noise amplifier is disclosed. Further, a method of controlling switched capacitive networks of an amplifier is disclosed. The method comprises controlling capacitances of the switched degeneration capacitor networks and/or the... Agent: Telefonaktiebolaget L M Ericsson (publ)

20140203873 - Signal processing apparatus and method: A signal processing apparatus and method are disclosed. A common mode signal extraction unit is configured to extract a common mode signal from input signals inputted to a differential amplifier. A common mode signal adjustment unit is configured to adjust a gain and a phase of the common mode signal... Agent: Samsung Electronics Co., Ltd

20140203874 - Power amplifiers with push-pull transistors, capacitive coupling for harmonic cancellation, and inductive coupling to provide differential output signals: A differential power amplifier including a push-pull pair of transistors, a capacitance, a first inductance, and a second inductance. The push-pull pair of transistors includes first and second transistors. The first transistor includes control and output terminals. The second transistor includes input and control terminals. The control terminals of the... Agent: Marvell World Trade Ltd.

20140203875 - High-gain low-noise preamplifier and associated amplification and common-mode control method: A preamplifier includes a differential pair of transistors receiving a bias current having a differential input and a differential output, a first resistor coupled to a first differential output node, a first transistor having a current path coupled between the first resistor and a power supply, a second resistor coupled... Agent: Aeroflex Colorado Springs Inc.

20140203876 - Amplifier circuit: An amplifier circuit is described comprising a first field effect transistor comprising a first source/drain terminal coupled to a first supply terminal, a second source/drain terminal coupled to an output of the amplifier circuit and a gate terminal; a second field effect transistor comprising a first source/drain terminal coupled to... Agent: Intel Mobile Communications Gmbh

20140203877 - Semiconductor device: A semiconductor device is provided with: a field-effect transistor that has a source electrode and a drain electrode that are connected to a semiconductor layer, a gate electrode that is provided on the surface of the semiconductor layer between the source electrode and the drain electrode, and a field plate... Agent: Renesas Electronics Corporation

20140203878 - Apparatus and methods for reducing capacitive loading of a power amplifier supply control module: Apparatus and methods for reducing capacitive loading of a power amplifier supply control module are disclosed. In one embodiment, a method of power supply control in a power amplifier system includes controlling a voltage level of a supply voltage using a supply control module, amplifying a first radio frequency (RF)... Agent: Skyworks Solutions, Inc.

  
07/17/2014 > 9 patent applications in 9 patent subcategories.

20140197885 - Amplifying device, distortion compensating device, and amplifying method: An amplifying device including: a first amplifier configured to generate a first output signal by amplifying an input signal, a second amplifier configured to generate a second output signal by amplifying the first output signal, and a processor configured to perform a first compensation by compensating a distortion for the... Agent: Fujitsu Limited

20140197886 - Amplifier with switchable common gate gain buffer: An amplifier having a switchable common gate gain buffer is disclosed. In an exemplary embodiment, an apparatus includes a plurality of selectable gain channels that provide constant input impedance at a common input to receive an input signal and generate an output signal having at least one of selected gain... Agent: Qualcomm Incorporated

20140197887 - Telescopic op-amp with slew rate control: An operational amplifier includes a transfer circuit, a cascode control circuit, and a slew rate boost circuit. The transfer circuit is configured to apply a transfer function to a received input signal and the application of the transfer function to the received input signal is effective to create an output... Agent: Knowles Electronics, LLC

20140197888 - Hybrid amplifier: Exemplary embodiments are directed to systems, devices, and methods for enhancing a telescopic amplifier. An amplifier may include a differential pair of input transistors including at least one transistor configured to receive a first input and at least one other transistor configured to receive a second input. The amplifier may... Agent: Qualcomm Incorporated

20140197889 - Semiconductor device, method for manufacturing the same, power supply device, and high-frequency amplifier: A semiconductor device includes: a compound semiconductor stack structure including a plurality of compound semiconductor layers stacked over a semiconductor substrate; a first insulating film covering the surface of the compound semiconductor stack structure; and a conductive film provided on the surface of the first insulating film.... Agent: Fujitsu Limited

20140197890 - Precise current source circuit for bias supply of rf mmic gain block amplifier application: A current source circuit includes a first transistor Q1, a second transistor Q2, a first resistor R1, and a second resistor R2. The first transistor Q1 has a first terminal (collector) coupled with the supply voltage (VCC), a second terminal (base) coupled with the first resistor R1, and a third... Agent: Microelectronics Technology, Inc.

20140197891 - Integrated circuit chip temperature sensor: A temperature control system having: a resistor formed in a region of a semiconductor, such resistor having a pair of spaced electrodes in ohmic contact with the semiconductor; at least one device formed in another region of the semiconductor thermally proximate the resistor formed region, such device generating heat in... Agent: Raytheon Company

20140197892 - On-die harmonics filtering for radio frequency power amplifiers: A power amplifier architecture for connecting a radio frequency (RF) transceiver to an antenna. An input matching circuit is connected to its input port, and an output matching circuit is connected to its output port. An amplifier circuit includes at least one amplifier active device with a first terminal connected... Agent: Rfaxis, Inc.

20140197893 - Amplification circuit having optimization of power: p

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