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Patent # Description
US-9,515,634 Selecting of a pre-filter in a receiver of a communication system
Embodiments provide a receiver comprising an input coupled to a communication channel for receiving an input signal from the communication channel, a first...
US-9,515,633 Transformer coupled capacitive tuning circuit with fast impedance switching for plasma etch chambers
A transformer coupled capacitive tuning (TCCT) circuit for an inductively coupled plasma (ICP) chamber includes a matching circuit including a first switched...
US-9,515,632 Impedance transformation circuit and wireless communication apparatus
A first coil element includes a first loop-shaped conductor and a second loop-shaped conductor. A second coil element includes a third loop-shaped conductor and...
US-9,515,631 Apparatus and methods for high voltage variable capacitor arrays with body-to-gate diodes
Apparatus and methods for high voltage variable capacitors are provided herein. In certain configurations, an integrated circuit (IC) includes a variable...
US-9,515,630 Musical dynamics alteration of sounds
An improved method and arrangement for altering musical dynamics of a sound S included in a sound signal is disclosed. The altering of the musical dynamics is...
US-9,515,629 Adaptive audio equalization for personal listening devices
An audio processor has an active noise cancellation (ANC) processor to compute an S-filter, which estimates a transfer function from an earpiece speaker, that...
US-9,515,628 Open-gain trans-impedance amplifier with programmable input impedance
In at least some examples, a communication device includes a photo-diode to convert an optical signal into an electrical current and an open-gain ...
US-9,515,627 Devices and methods for audio volume adjustment
Systems, devices and methods are provided for audio volume adjustment. For example, a noise volume level of current ambient noise and a first volume level of a...
US-9,515,626 Digital/analogue conversion
The application relates to digital to analogue conversion circuits having dynamic gain control. A digital variable gain element (102) may apply gain to an input...
US-9,515,625 Multi-varactor approach for improved VCO gain
An apparatus with a multi-varactor circuit for suppressing VCO gain is described herein. According to an embodiment, the apparatus comprises a plurality of...
US-9,515,624 Semiconductor device
A differential amplifier includes a differential circuit section, a gain circuit section amplifying the output of the differential circuit section and...
US-9,515,623 Multiple-state, switch-mode power amplifier systems and methods of their operation
An embodiment of an amplifier includes N (N>1) switch-mode power amplifier (SMPA) branches. Each SMPA branch includes two drive signal inputs and one SMPA...
US-9,515,622 Reconfigurable bias and supply drivers for radio frequency power amplifiers
In some example embodiments, there is provided an apparatus. The apparatus may include a direct current voltage source and/or an alternating current voltage...
US-9,515,621 Multimode RF amplifier system
Multimode radio frequency (RF) amplifier systems and techniques are disclosed. In one embodiment, a multimode radio frequency (RF) amplifier system has a first...
US-9,515,620 Amplifier arrangement comprising a master amplifier and at least one slave amplifier
An amplifier arrangement for amplifying at least one first and one second audio input signal. In one embodiment, the arrangement includes a master amplifier...
US-9,515,619 Amplifier arrangement with limiting module
An amplifier arrangement for amplifying an audio input signal AES into an audio output signal AAS, having a conditioning apparatus for converting the audio...
US-9,515,618 Femtowatt non-vacuum tube detector assembly
In one embodiment, a femtowatt sensitivity optical detector is provided using one or more photodiodes, intended as a replacement for the photomultiplier based...
US-9,515,617 Audio amplifier using multi-level pulse width modulation
The present invention relates in one aspect to a class D audio amplifier with improved output driver topology supporting multi-level output signals such as...
US-9,515,616 Tunable tube amplifier system of a radio-frequency power generator
Tube amplifier system including a plurality of conductor walls extending parallel to a longitudinal axis and defining an interior space therebetween. The tube...
US-9,515,615 World band radio frequency front end module, system and method thereof
The present disclosure relates to a World Band Radio Frequency Power Amplifier and a World Band Radio Frequency Front End Module. The World Band Power Amplifier...
US-9,515,614 Amplifier device and wireless communication device
An amplifier device 1 includes: a distortion compensation section 3 that performs distortion compensation for an input signal x to an amplifier 2 by digital...
US-9,515,613 Dual-band doherty amplifier and method therefor
A dual-band Doherty amplifier and method therefor are provided. The dual-band Doherty amplifier includes a first amplifier gain element, a first transmission...
US-9,515,612 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...
US-9,515,611 Power amplifier saturation detection
In a portable radio transceiver, a power amplifier system includes a saturation detector that detects power amplifier saturation in response to duty cycle of...
US-9,515,610 Line driver with active termination and associated method
A line driver and a method for driving a load are proposed. The line driver includes a current amplifier and a feedback network. The current amplifier has an...
US-9,515,609 Passive mixer with duty cycle improvement through harmonics level reduction
A signal generation circuit includes a voltage controlled oscillator configured to generate a differential oscillator signal having an amplitude. A passive...
US-9,515,608 Multimode oscillator enabling simultaneous monitoring of variations in several resonance frequencies of a resonator
A multimode oscillator comprising: a resonator including: a moving element; actuators of the moving element according to two symmetric and antisymmetric...
US-9,515,607 Voltage controlled oscillator with common mode adjustment start-up
The present disclosure provides methods and apparatus for dynamically adjusting the common mode voltage at the LC tank node and/or the power supply voltage of a...
US-9,515,606 Oscillator and radio communication device
According to an embodiment, there is provided with an oscillator including: a clock circuit, a power supply current source and an oscillating circuit wherein...
US-9,515,605 Variable gain electro-mechanical oscillator and method for starting balanced oscillations
A cross-coupled complementary balanced electro-mechanical oscillator and a method for generating balanced oscillations. The oscillator comprises an...
US-9,515,604 Driving crystal oscillator startup at above, below and operating frequency
A circuit includes a crystal oscillator to generate an output frequency for a circuit. A driving oscillator generates a startup signal having a driving...
US-9,515,603 Crystal oscillator start-up circuit
A crystal oscillator start-up circuit capable of reducing a start-up time of a crystal oscillator is disclosed. The crystal oscillator start-up circuit is...
US-9,515,602 Solar array condition monitoring through controlled inverter voltage sweeping
A PV system includes an irradiance meter to measure solar irradiance received by a PV array in the system. A PV inverter is electrically connected to the PV...
US-9,515,601 Solar cell module and systems incorporating same
An electrical connection system comprising a plurality of electrical components electrically interconnected by a plurality of multi-terminal electrical...
US-9,515,600 Solar module installation system and method
A solar panel installation includes at least one support cable and at least two support structures configured to hold the at least one support cable in...
US-9,515,599 Photovoltaic panel mounting rail with integrated electronics
A photovoltaic mounting rail that includes an elongate bottom wall, a mounting support, an outer sidewall and one or more electronic components. The mounting...
US-9,515,598 System and method for controlling regenerating energy in an adjustable speed drive
A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD...
US-9,515,597 Electric machine
An electric machine has a primary mechanical output or input, a plurality of electric sub-machine rotors each having an output or input shaft, a plurality of...
US-9,515,596 Switched reluctance motor
A switched reluctance motor includes: a stator provided with a plurality of stator teeth as salient poles in a radial fashion with winding wire wound around...
US-9,515,595 Motor drive switched mode power supply systems and methods
The embodiments described herein include one embodiment that provides a motor drive that includes driver circuitry that controls operation of an inverter in the...
US-9,515,594 Wind turbine having improved overvoltage protection
A wind turbine comprises a wind rotor, a generator driven by the wind rotor, a converter, wherein the generator and the converter generate electrical energy...
US-9,515,593 Regulation method
The invention relates to a method for automatic regulation of a system in which a plurality of parameters characteristic of the system are measured and in which...
US-9,515,592 System and method of detecting a wiring configuration for a controlled field alternator
Some embodiments relate to a controlled field alternator where the alternator is wired in a low wye configuration (coils wired in series or parallel). The first...
US-9,515,591 Rotary drive mechanism and light dispersion system having the same
A rotary drive mechanism provides a mechanism for driving light dispersing element having a high wavelength-moving speed and a high wavelength-resolving power....
US-9,515,590 Motor control device, image forming apparatus, motor control method, and computer-readable storage medium
A motor control device includes a controller configured to output a control signal to a motor driver, the control signal instructing the motor driver to cut off...
US-9,515,589 Motor driving device and vacuum pump
A motor driving device comprises: an inverter having a plurality of switching elements for driving a motor; an arithmetic section for calculating a rotational...
US-9,515,588 Sensorless control of a brushless permanent-magnet motor
A method of controlling a brushless permanent-magnet motor. The method includes generating a first signal having a voltage that is proportional to a voltage...
US-9,515,587 Phase detector, motor drive controller, motor device, and method of detecting phase of rotor
A phase detector includes a crossing-point phase detection circuit to compare signals levels of pairs of sensor signals and output crossing-point phase...
US-9,515,586 Power output stage, method for operation
The invention relates to a power output stage (1), in particular for a controller of an electrical machine (2) for a motor vehicle, comprising at least one...
US-9,515,585 Method for diagnosing electric water pump of engine
A method for diagnosing an electric water pump of an internal combustion engine includes determining whether a present condition is a coil-open diagnosis...
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