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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Application No. | Application Title | Issue Date |
| 20120081184 | HIGH IMPEDANCE MICROWAVE ELECTRONICS High impedance, high frequency nanoscale device electronics configured to interface with low impedance loads include an impedance transforming stage constructed of multiple nanoscale devices, such as carbon nanotube field-effect transistors. In an embodiment of the pres... | 04/05/2012 |
| 20120001697 | DIFFERENTIAL AMPLIFIER STAGE WITH INTEGRATED OFFSET CANCELLATION CIRCUIT A differential amplifier stage and method for offset cancellation include an amplifier having an input and an output. An internal offset cancellation circuit has an input for receiving a control signal to control offset cancellation in the amplifier. The offset cancella... | 01/05/2012 |
| 20110316637 | AMPLIFIER MODULE WITH MULTIPLE OPERATING MODES An amplifier module with multiple operating modes is described. In an exemplary design, an apparatus includes a plurality of amplifiers. The apparatus may also include a plurality of switches, each switch coupled to an output of an associated amplifier in the plurality ... | 12/29/2011 |
| 20110316636 | DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for mat... | 12/29/2011 |
| 20110235827 | AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal... | 09/29/2011 |
| 20110204977 | SOLID-STATE IMAGE PICKUP APPARATUS AND DRIVING METHOD THEREFOR An apparatus according to an embodiment of the present invention includes a conversion unit configured to generate electric charge, a first amplification unit configured to amplify a signal corresponding to an amount of the electric charge and output a first amplified s... | 08/25/2011 |
| 20110187460 | CMOS power amplifiers having integrated one-time programmable (OTP) memories CMOS power amplifiers (PAs) are disclosed having one or more integrated one-time programming (OTP) memories that are utilized to control at least in part operation of the CMOS PAs. The integrated OTP memories within the CMOS power amplifiers (PAs) allow adjustments, suc... | 08/04/2011 |
| 20110187461 | POWER AMPLIFIER According to one embodiment, a variable attenuator is arranged in an input stage, a plurality of transistors are cascaded on the later part of this variable attenuator, temperature sensors are arranged in the vicinity of two or more of the plurality of transistors to de... | 08/04/2011 |
| 20110133970 | MULTIPATH AMPLIFIER Because of variations in open loop gain and bandwidth in successive approximate register (SAR) analog-to-digital converters (ADCs), designing amplifiers with the desired characteristics is difficult. Here, a multipath amplifier is provided that accounts for the variatio... | 06/09/2011 |
| 20110121903 | POWER AMPLIFIER There is provided a power amplifier that can increase power efficiency by preventing power consumption caused by DC components from an RF input signal. A power amplifier according to an aspect of the invention may include: an inverter amplification section amplifying an... | 05/26/2011 |
| 20110102082 | MINIMAL AREA, POWER EFFICIENT, HIGH SWING AND MONOLITIHIC GROUND CENTERED HEADPHONE AMPLIFIER CIRCUIT OPERABLE ON A LOW VOLTAGE A minimal area, power efficient, high swing and monolitihic ground centered headphone amplifier circuit operable on a low voltage. An input amplifier stage includes a first input terminal and a second input terminal and having a first gain. An output amplifier stage is ... | 05/05/2011 |
| 20110063036 | OPERATIONAL AMPLIFIER A multi-stage amplification type class-AB operational amplifier disclosed includes an amplification stage having plural amplification sections formed in multiple stages, and a class-AB output stage having a bias section and an output section, in which an input signal in... | 03/17/2011 |
| 20110025423 | MILLIMETER-WAVE MONOLITHIC INTEGRATED CIRCUIT AMPLIFIER WITH OPPOSITE DIRECTION SIGNAL PATHS AND METHOD FOR AMPLIFYING MILLIMETER-WAVE SIGNALS Embodiments of a high-frequency millimeter-wave amplifier are generally described herein. The high-frequency millimeter-wave amplifier may be constructed on a substrate to operate at a frequency of at least 75 GHz. In some embodiments, the millimeter-wave amplifier may ... | 02/03/2011 |
| 20110012682 | ELECTRONIC CIRCUIT WITH CASCODE AMPLIFIER An electronic circuit has an amplifier with an amplifying transistor (260) and a cascode transistor (262). A capacitive voltage divider (268) applies a fraction of an RF signal swing from the drain of the cascode transistor (262) to the gate ... | 01/20/2011 |
| 20110006848 | AMPLIFIER CIRCUIT An amplifier circuit includes three amplifier units connected in series. The first amplifier unit includes an input connector for inputting signals and a first transistor amplifier module connected to the input connector. The second amplifier unit includes a notch-filte... | 01/13/2011 |
| 20100327980 | HETEROJUNCTION BIPOLAR TRANSISTOR AND METHOD FOR MANUFACTURING THE SAME, AND POWER AMPLIFIER USING THE SAME A heterojunction bipolar transistor with InGaP as the emitter layer and capable of both reliable electrical conduction and thermal stability wherein a GaAs layer is inserted between the InGaP emitter layer and AlGaAs ballast resistance layer, to prevent holes reverse-in... | 12/30/2010 |
| 20100315168 | CASCODE CMOS RF POWER AMPLIFIER WITH PROGRAMMABLE FEEDBACK CASCODE BIAS UNDER MULTIPLE SUPPLY VOLTAGES A Radio Frequency (RF) cascode power amplifier operates with differing battery supply voltages. A transconductance stage has a transistor with an RF signal input at its gate. A cascode stage has at least one cascode transistor, the cascode stage coupled in series with t... | 12/16/2010 |
| 20100315167 | Inter-Stage Matching Network to Enhance Common Mode Stability An amplifier has a first transistor, a second transistor, a third transistor and a fourth transistor, a first transformation network having first and second grounds and a second transformation network having third and fourth grounds. The amplifier has a collector of the... | 12/16/2010 |
| 20100283545 | MULTI-PATH, MULTI-STAGE FEED-FORWARD OPERATIONAL AMPLIFIER CIRCUIT An embodiment of an amplifier circuit includes a plurality of amplifiers connected between input and output terminals to form at least partially parallel amplification paths between the terminals. A first plurality of the amplification paths include series-connected plu... | 11/11/2010 |
| 20100283543 | Variable gain amplifier Various amplifier configurations having increased bandwidth, linearity, dynamic range, and less distortion are shown and disclosed. To increase bandwidth in a transimpedance amplifier, a replica circuit is created to replicate a degeneration resistance, or the resistanc... | 11/11/2010 |
| 20100277243 | PASSIVE SPECTRUM CONTROL FOR PULSED RF POWER AMPLIFIERS A multi-stage RF power amplifier including passive circuitry for frequency spectrum control. In one example, a multi-stage RF power amplifier includes a first RF power transistor, a second RF power transistor, and a passive combination bandpass filter and impedance matc... | 11/04/2010 |
| 20100253436 | AMPLIFIER An amplifier is realized by a distributed-constant-type amplifier including an input-side transmission line and an output-side transmission line, and a plurality of unit circuits coupled between the input-side transmission line and the output-side transmission line, in ... | 10/07/2010 |
| 20100244908 | Semiconductor device having a complementary field effect transistor A semiconductor device prevents the ON current of a complementary field effect transistor from varying with changes in ambient temperature. The semiconductor device includes: a buffer circuit that generates a power-supply voltage of a CMOS; a first replica transistor th... | 09/30/2010 |
| 20100231305 | SEMICONDUCTOR DEVICE FOR SIGNAL AMPLIFICATION A semiconductor device for transmitting-signal amplification which has a fine resolution, a high dynamic range, a small occupied area, and low power consumption, is realized. An input signal amplitude is reduced every one half by a ladder network, and a transconductance... | 09/16/2010 |
| 20100214019 | LOW POWER INTEGRATED CIRCUIT The present invention relates to an integrated electrical circuit in particular a receiver or driver suitable for broadband communication, such as optical interconnect. The circuit comprises two amplifiers which share current supply wherein the integrated circuit is arr... | 08/26/2010 |
| 20100214024 | LOW DISSIPATION AMPLIFIER A low dissipation, low distortion amplifier includes a driver amplifier stage and a main output stage, with a plurality of impedance networks providing, among other things, feedback paths from outputs of the driver and main output stages to the input of the driver stage... | 08/26/2010 |
| 20100194481 | RF POWER AMPLIFIER AND RF POWER MODULE USING THE SAME The RF power amplifier circuit including multiple amplification stages has a previous-stage amplifier, a next-stage amplifier and a controller. The previous-stage amplifier responds to an RF transmission input signal. The next-stage amplifier responds to an amplificatio... | 08/05/2010 |
| 20100164632 | POWER AMPLIFIER A radio frequency power amplifier has first and second amplifier stages coupled in series, one of which is operated in class F and the other is operated in inverse class F; an envelope detector adapted to detect an envelope of the input signal; a power supply coupled to... | 07/01/2010 |
| 20100127783 | SWITCHING LOW NOISE AMPLIFIER Disclosed are embodiments of an integrated circuit device, method and design structure for selectively amplifying one of multiple received input signals. The embodiments incorporate at least two first stage transistors and a single second stage transistor. The first sta... | 05/27/2010 |
| 20100109785 | AMPLIFIER CIRCUIT An amplifier circuit includes a first amplifying section for amplifying a signal, and a second amplifying section for amplifying the signal amplified by the first amplifying section. A capacitive element connects the output of the first amplifying section to the input o... | 05/06/2010 |
| 20100109776 | Millimeter Wave Monolithic Integrated Circuits A millimeter wave amplifier constructed on a substrate and configured for use at a frequency of 75 GHz or higher, may include four amplifier stages. A first inter-stage filter, resonant at an operating frequency of the amplifier, may couple the output of the first stage... | 05/06/2010 |
| 20100109784 | MILLIMETER WAVE MONOLITHIC INTEGRATED CIRCUITS AND METHODS OF FORMING SUCH INTEGRATED CIRCUITS A description is provided of a high-frequency, multi-stage, millimeter wave amplifier integrated circuit, and of a method for designing and constructing the circuit. The methods and structures have been created to enable the construction of an amplifier offering substan... | 05/06/2010 |
| 20100097144 | METHOD AND SYSTEM FOR POLAR MODULATING OFDM SIGNALS WITH DISCONTINUOUS PHASE Aspects of a method and system for polar modulating OFDM signals with discontinuous phase may include amplifying a normalized OFDM signal via a plurality of amplifiers such that a combined gain of the plurality of amplifiers comprises a coarse amplitude gain and an ampl... | 04/22/2010 |
| 20100052790 | AMPLIFIER CIRCUIT An amplifier circuit includes a first amplifier amplifying an input signal and outputting a first amplified signal, a second amplifier amplifying the first amplified signal and outputting a second amplified signal, and a feedback circuitry feeding back the second amplif... | 03/04/2010 |
| 20100019853 | AMPLIFICATION STAGE There is provided an amplifier that comprises a plurality of amplifier stages arranged in a cascade; and a frequency-dependent load associated with the output of at least one of the plurality of amplifier stages, the frequency dependent load being adapted to reduce a vo... | 01/28/2010 |
| 20090295487 | POWER EFFICIENT MULTISTAGE AMPLIFIER AND DESIGN METHOD A multistage amplifier and design method are disclosed. The multistage amplifier has a plurality of amplifier stages, each stage having an amplifier designed and biased to operate at or near the amplifier's power added efficiency (PAE) peak. The PAE peak of each of the ... | 12/03/2009 |
| 20090189696 | LOW-NOISE AMPLIFIER A low-noise amplifier is provided according to the present invention. The low-noise amplifier includes a first amplifier stage, a second amplifier stage, a third amplifier stage, an input matching network, inter-stage matching networks, and an output matching network. T... | 07/30/2009 |
| 20090108933 | Compensation For Amplifiers Driving A Capacitive Load This disclosure relates to load compensating multi-stage amplifier structures at an output of one of the amplifier stages.... | 04/30/2009 |
| 20080315957 | ULTRA-WIDEBAND LOW NOISE AMPLIFIER AND AMPLIFICATION METHOD THEREOF An ultra wideband low noise amplifier (UWB LNA) and amplification method thereof, providing a substantially achieved bandwidth extension by pole-zero cancellation and utilized to transform input impedance matching up to 50 ohm for gaining low noise figure. The ultra-wid... | 12/25/2008 |
| 20080265997 | Power Amplifier for Amplifying High-Frequency (H.F.) Signals An H.F. power amplifier is disclosed having a plurality of branches (10, 11, 12) switched in parallel. Each branch comprises a plurality of amplifier elements (T1, T4) switched in series. Resistors (R2, R5) enable the voltage (U_DS) ap... | 10/30/2008 |
