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Patent # Description
US-9,413,325 Switchless multiband filter architecture
A cable modem is provided in a premises. The cable modem is operated in a first mode with a first upstream passband. At least one fusible link in the cable...
US-9,413,324 Electronic component
An electronic component includes an input port, a first output port, a ground port, a first capacitor and a second capacitor that are electrically connected in...
US-9,413,323 System and method of filtering an audio signal prior to conversion to an MU-LAW format
Disclosed is a method of processing a signal such as an audio signal. The method includes normalizing a received signal to a level of between -2 dB and -10 dB...
US-9,413,322 Audio loudness control system
An audio loudness control system includes a loudness adjuster module configured to adjust a level of an audio signal based on parameters associated with the...
US-9,413,321 System and method for digital signal processing
The present invention provides for methods and systems for digitally processing an audio signal to reproduce high quality sounds on various materials. In...
US-9,413,320 Programmable broad bandwidth gain amplifier
A broadband amplifier in which an amplifier output stage is part of a stepped attenuator where the amplifier output stage can be selectively replaced by, or...
US-9,413,319 Gain calibration
Apparatus and methods calibrate one or more gain ranges for errors. A system can identify offset error and amplification error that occurs when the system...
US-9,413,318 Audio-playing system and method for protecting storage medium of electrical device
The present invention discloses an audio playing system for protecting a storage medium of an electrical device. The audio playing system includes a detecting...
US-9,413,317 System and method for high input capacitive signal amplifier
In accordance with an embodiment, a method includes determining an amplitude of an input signal provided by a capacitive signal source, compressing the input...
US-9,413,316 Asymmetric polynomial psychoacoustic bass enhancement
Psychoacoustic bass audio signal enhancement can be accomplished using a monotonic, asymmetric polynomial distortion. A non-linear process applies a monotonic,...
US-9,413,315 Low noise amplifier with embedded filter and related wireless communication unit
In one embodiment, a WCDMA FDD system includes an embedded filter that provides a complex load to transistors in a low noise amplifier. The complex load can be...
US-9,413,314 Corona ignition with self-tuning power amplifier
A power amplifier circuit that has an inductor and capacitor connected to one end of the output winding of an RF transformer. The other end of the output...
US-9,413,313 Multimode power amplifier bias circuit with selectable bandwidth
Multimode power amplifier bias circuit with selectable bandwidth. In some embodiments, a bias circuit for a power amplifier can include a first bipolar junction...
US-9,413,312 Real-time short-circuit detection
Presented are circuits and methods for providing real-time short-circuit detection, capable of detecting a short-circuit prior to occurrence of an over-limit...
US-9,413,311 Radio-frequency power amplifier
A device for radio-frequency power amplification having a switching arrangement is provided. The switching arrangement is configured to amplify, during...
US-9,413,310 Source driver output stage circuit, buffer circuit and voltage adjusting method thereof
A buffer circuit applied to a source driver output stage circuit includes a buffer and a D-class amplifier. The buffer is coupled to an input voltage for...
US-9,413,309 Apparatus and methods for a cascode amplifier topology for millimeter-wave power application
Provided herein are apparatus and methods for a cascode amplifier topology for millimeter-wave power application. The cascode amplifier can use a neutralized...
US-9,413,308 RF power device
In RF power transistors, the current distribution along edges of the transistor die may be uneven leading to a loss in efficiency and in the output power...
US-9,413,307 Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier...
An electronic device includes a transimpedance amplifier stage having an amplifier end stage of the class AB type and a preamplifier stage coupled between an...
US-9,413,306 Method of calibrating a multiport amplifier, multiport amplifier allowing the implementation of such a method,...
A method of calibrating a multiport amplifier comprising a plurality of input ports, a plurality of power amplifiers linked to input ports by a matrix...
US-9,413,305 Feedback-based 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 a feedback-based...
US-9,413,304 Electronic device and control method thereof
An electronic device includes an amplifier which is configured to amplify a sound signal and includes a vacuum tube including a heater configured to heat the...
US-9,413,303 Efficient linear integrated power amplifier incorporating low and high power operating modes
A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern...
US-9,413,302 Digital predistortion apparatus and method
A digital predistortion apparatus comprising: a nonlinear device; a memory effect compensator; a constant value characteristic acquirer; a cost function...
US-9,413,301 Noise canceling low-noise amplifier
A noise-canceling LNA circuit for amplifying signals at an operating frequency f in a receiver circuit is disclosed. The LNA circuit comprises a first and a...
US-9,413,300 Front-end matching amplifier
A front-end receiver includes an amplifier that has a steady gain over a wide frequency range. The disclosed amplifier adopts an architecture in which a...
US-9,413,299 Systems and methods utilizing adaptive envelope tracking
A communication system utilizing adaptive envelope tracking includes a transmit path, a feedback receiver, a parameter component and an envelope tracking...
US-9,413,298 Amplifier dynamic bias adjustment for envelope tracking
An envelope tracking amplifier having stacked transistors is presented. The envelope tracking amplifier uses dynamic bias voltages at one or more gates of the...
US-9,413,297 Constant transconductance bias circuit
A bias circuit is adapted for biasing a to-be-biased transconductance cell such that the to-be-biased transconductance cell has a constant transconductance, and...
US-9,413,296 Amplifier with enhanced linearity
An apparatus includes a first amplifier that includes a transistor that is coupled to an input terminal of the first amplifier. The transistor is biased to...
US-9,413,295 Systems and methods of phase frequency detection with clock edge overriding reset, extending detection range,...
Systems and methods associated with phase frequency detection are disclosed. In one illustrative implementation, a phase frequency detection (PFD) circuit...
US-9,413,294 Apparatus and method for correcting IQ imbalance
The subject matter discloses an apparatus residing within an RF chip, comprising: a detection unit for detecting IQ mismatch in an IQ signal; an analog...
US-9,413,293 Crystal device
A crystal device having electrode lands on a principal surface of a first package member, a crystal oscillator bonded to and held by the electrode lands, a...
US-9,413,292 Efficiency of clipped pulse generation
The disclosed embodiments provide a resonant oscillator circuit. The resonant oscillator circuit includes a clipping mechanism configured to clip an output...
US-9,413,291 System and method for frequency drift compensation for a dielectric resonator oscillator
Systems and methods for frequency drift compensation for a dielectric resonator oscillator and systems and methods to reduce temperature drift in a dielectric...
US-9,413,290 Suitable control method for a system of photovoltaic concentration modules
The invention relates to a suitable control method for a system of photovoltaic concentration modules, which can be used to maintain the correct orientation of...
US-9,413,289 Photoelectric conversion device
A photoelectric conversion device includes at least two photoelectric conversion elements which have voltage-current characteristics different from each other....
US-9,413,288 Photovoltaic system with managed output and method of managing variability of output from a photovoltaic system
Photovoltaic systems with managed output and methods for managing variability of output from photovoltaic systems are described. A system includes a plurality...
US-9,413,287 Photovoltaic module support system
A support system for a solar panel includes a triangular truss with connection points for mounting a photovoltaic module, and a cradle structure that supports...
US-9,413,286 Leveler for solar module array
A leveler for a solar module can include a base, a rotatable adjuster, and a follower. The rotatable adjuster can be mounted to the base with a swaging process,...
US-9,413,285 Support member for mounting photovoltaic modules
A support member for mounting photovoltaic modules on a support surface and a mounting system including the same are disclosed herein. The support member may...
US-9,413,284 Variable display device and method of driving the same
A variable display device includes a display panel; a joint plate installed at a rear surface of the display panel and including a plurality of plates each...
US-9,413,283 Motor control system, control device, and control method
A motor control system includes a plurality of motors, a plurality of inverters, and a controller. The plurality of inverters are configured to drive the...
US-9,413,282 Stator resistance estimation for electric motors
A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE)...
US-9,413,281 Apparatus for controlling AC motor
In an apparatus, a controller performs, as a calculation of d- and q-axis values of a current vector, a first task and a second task. The first task expands one...
US-9,413,280 Inverter and method of controlling same
An inverter is provided. The inverter includes a current providing unit providing a first axis current and a second axis current to an induction motor; a...
US-9,413,279 Apparatus and method for controlling motor
An apparatus and a method for controlling a motor are provided. The apparatus for controlling a motor includes a temperature sensor that is configured to detect...
US-9,413,278 Control device for rotating electrical machine
A control device for a rotating electrical machine is provided that is capable of suppressing reduction in controllability of torque attributed to harmonic...
US-9,413,277 Actuator control device
An actuator control device includes an upper-level control unit that sets an upper-level target value of a predetermined control factor relating to driving an...
US-9,413,276 DC motor control over wide dynamic range
Various examples are provided for brushless direct current (DC) motor control over a wide dynamic range. In one example, among others, a system including a...
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