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| Number | Title | Issue Date |
| 8433262 | Transmission device and transmission method A disclosed transmission device includes a voltage control signal generating unit configured to generate a first voltage control signal from a transmission signal, an amplifier configured to amplify the transmission signal in response to the first voltage control si... | 04/30/2013 |
| 8433263 | Wireless communication unit, integrated circuit and method of power control of a power amplifier therefor A wireless communication unit comprises a transmitter having a forward path comprising a power amplifier, PA, and a feedback path arranged to feed back a portion of a signal output from the PA to a point in the forward path prior to the PA. The forward path and feed... | 04/30/2013 |
| 8428526 | System and method for tuning baseband filters in wireless transceivers A system and method for tuning baseband filters in wireless transceivers. A method comprises coupling a radio frequency (RF) signal generated by the wireless transmitter at an input of a wireless receiver, the RF signal having a desired frequency, measuring a magnit... | 04/23/2013 |
| 8417197 | Pre-distortion method and device to enhance the power utility of power amplifiers in wireless digital communication applications The present invention concerns the field of power amplifiers and in particular the enhancement of the performance of the amplifier by a feedback loop acting on the input signal. We present a method for linearizing a power amplifier circuit having as input signal a d... | 04/09/2013 |
| 8417196 | Apparatus and method for directional coupling Apparatuses and methods for directional coupling are disclosed. In one embodiment, an apparatus includes a directional coupler, a termination impedance, a switch, and a control block. The directional coupler includes a power input terminal, a power output terminal, ... | 04/09/2013 |
| 8369803 | Power correction module for power amplifiers A power correction module for use with an amplifier driving a load impedance is configured to sample the supply current and to cause a change in a control voltage, which corrects the supply voltage in response to a change in the load impedance. The supply voltage is... | 02/05/2013 |
| 8369804 | Wireless communication unit, semiconductor device and power control method therefor A wireless communication unit comprises a transmitter comprising a power amplifier, an inner feedback power control loop having a power control logic module comprising loop priming logic module operably coupled to the power amplifier, and a switchable outer digital ... | 02/05/2013 |
| 8364103 | Adaptive adjustment of active area for power amplifier One embodiment of the present invention relates to a transmission circuit configured to dynamically adjust a number of active transistor cells within a power amplifier based upon a signal quality measurement determined from a feedback. The transmission circuit compr... | 01/29/2013 |
| 8351880 | Saturation corrected power amplifier integration loop Embodiments of the present disclosure relate to an radio frequency (RF) power amplifier (PA) module having a saturation corrected integration loop, which includes saturation detection and correction circuitry, an integrator, PA circuitry, and detector circuitry. An ... | 01/08/2013 |
| 8295793 | Configuration controller for receiver A configuration controller generates one or more control signals based on channel data. The channel data includes requirements data received via the stream of inbound data, wherein the requirements data includes at least one of: a quality of service requirement, and... | 10/23/2012 |
| 8295792 | Control of switcher regulated power amplifier modules Various embodiments described herein relate to a power management block and an amplification block used in the transmitter of a communication subsystem. The power management block provides improved control for the gain control signal provided to a pre-amplifier and ... | 10/23/2012 |
| 8280324 | Method and system for closed loop power control in wireless systems Aspects of a method and system for closed loop power control in wireless systems are provided. In this regard, an output power of an amplifier may be measured and an indication of the measured power may be compared to a reference signal. The results of the compariso... | 10/02/2012 |
| 8280323 | Fuzzy logic control of an RF power amplifier for automatic self-tuning Fuzzy logic is utilized to control an RF amplifier and associated tuner for continuous self-optimization and automatic load matching to at least double the battery life of a battery-powered transmitter. ... | 10/02/2012 |
| 8233857 | Detector with bandwidth compensation A measurement system includes a detector to generate a measurement signal responsive to an input signal, and a nulling circuit coupled to the detector to generate a control signal responsive to the difference between the measurement signal and a set-point signal. Th... | 07/31/2012 |
| 8229372 | Parallel forward path cartesian feedback loop and loop filter with switchable order for cartesian feedback loops A communication device having an RF power amplifier stage with a Cartesian feedback loop is provided. The loop has forward paths whose outputs are combined to form an output signal that is fed back to a single feedback path. Each forward path has a common path with ... | 07/24/2012 |
| 8224269 | Vector modulator calibration system A vector modulator calibration system (“VMCS”) for obtaining a calibrated modulated output signal while minimizing spurious output signals from a vector modulator is shown. The VMCS may include a power sensor in signal communication with the vector modulator and... | 07/17/2012 |
| 8213887 | Pre-distorting a transmitted signal for offset cancellation In one embodiment, the present invention includes a pre-driver to receive data of a first clock phase and to pre-drive the data, a driver coupled to the pre-driver to drive the data onto a link operable to be coupled to a receiver, and an offset driver to drive an o... | 07/03/2012 |
| 8208873 | Method and apparatus for adjusting waveform parameters for an adaptive air interface waveform Adjusting parameters of a waveform includes facilitating wireless communication between a transmitting node and receiving nodes, where the transmitting node communicates with a receiving node over a channel. Spectrum conditions are estimated, where a spectrum condit... | 06/26/2012 |
| 8208874 | RF power amplifiers A Solid State Power Amplifier (SSPA) for powering a single element of a multi-element antenna, the SSPA comprising: an RF amplifier, having a signal amplifying path that includes preamplifier, driver amplifier and a power output st... | 06/26/2012 |
| 8195106 | Vehicle control and communication via device in proximity An apparatus, device, methods, computer program product, and system are described that make a determination that a first device associated with a vehicle is in proximity to a wireless device, transmit a signal from the first device to the wireless device to cause th... | 06/05/2012 |
| 8175553 | Wireless communication unit, linearised transmitter circuit and method of linearising therein A wireless communication unit includes a linearised transmitter having a forward path and a feedback path, respectively comprising at least one up-mixer and down-mixer, and forming two loops in quadrature. A phase training signal is applied to the at least one down-... | 05/08/2012 |
| 8175554 | Radio frequency communication devices and methods One embodiment relates to a radio frequency (RF) communication device. The RF communication device includes a coupler having a plurality of ports and an adjustable termination coupled to one of the plurality of ports. The adjustable termination is adjustable based o... | 05/08/2012 |
| 8170511 | Equalizer system for emitting a quasi-constant power output RF signal in a frequency band The invention refers to an equalizer system for emitting a quasi-constant power output RF signal in a first frequency band, the system comprising a programmable RF signal generator (10) for providing a modulated signal; a variable gain amplifier (40) f... | 05/01/2012 |
| 8160517 | Control of switcher regulated power amplifier modules Various embodiments described herein relate to a power management block and an amplification block used in the transmitter of a communication subsystem. The power management block provides improved control for the gain control signal provided to a pre-amplifier and ... | 04/17/2012 |
| 8145156 | Configuration controller for receiver and transmitter A configuration controller generates one or more control signals based on channel data. A receiver includes an RF receiver section and a receiver processing module that are configured in response to the control signal. A transmitter includes an RF transmitter sectio... | 03/27/2012 |
| 8140034 | Frequency locked feedback loop for wireless communications A method and systems for a frequency locked feedback loop for wireless communications are provided. The method includes applying dither modulation from a harmonic modulator to modulated data at a transmit source, and mixing the dither modulation at a dither modulati... | 03/20/2012 |
| 8135362 | Symbol stream virtual radio organism method and apparatus A method of communicating using evolutionary synthesis for band-limited voice and data channels. ... | 03/13/2012 |
| 8126411 | Apparatus and method for power amplification with delay control in wireless communication system A transmitting apparatus and method for power amplification with delay control in a wireless communication system are provided. The apparatus includes signal converters, a delay difference measurer, and a delay controller. The signal converters separate a baseband s... | 02/28/2012 |
| 8064853 | Method and system for reduction of peak-to-average power ratio of transmission signals comprising overlapping waveforms The present invention provides a method and system for reducing the peak to average power ratio (PAP) of a signal with low computational complexity. According to one embodiment, the present invention is applied to reduce the PAP of an OFDM signal. According to an al... | 11/22/2011 |
| 8064852 | Methods and apparatus for dynamically compensating for DC offset drift and other PVT-related signal variations in polar transmitters Methods and apparatus for dynamically compensating for signal variations in communications transmitters employing switch-mode PAs. An exemplary method includes first identifying a predetermined signal characteristic in an input signal applied to an input of a switch... | 11/22/2011 |
| 8060038 | Radio transmitter using Cartesian loop A radio transmitter including a combiner which combines input I/Q signals with feedback I/Q signals, a power amplifier which amplifies the quadrature modulated signal, a detector which detects amplitude and phase differences between the input and feedback I/Q signal... | 11/15/2011 |
| 8050638 | Power amplifier controller with polar transmitter A power amplifier controller controls a power amplifier and is coupled to a polar modulator. The polar modulator generates an amplitude component and a phase-modulated component of the desired RF modulated signal, and outputs to the power amplifier controller. The p... | 11/01/2011 |
| 8023909 | Data conversion using a serial interface clock in a power amplifier module In a mobile wireless telecommunication device, a bidirectional serial interface is used to transfer a digital representation of an analog value from a first chip associated with a power amplifier module to a second chip. In an exemplary embodiment, circuitry on the ... | 09/20/2011 |
| 8019292 | Power amplifier amplitude modulator system and method A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated c... | 09/13/2011 |
| 8014736 | Distortion compensating apparatus, wireless communicating apparatus, and distortion compensating method A distortion compensating apparatus includes following units. An information measuring unit measures a distortion component and an electric power component based on a radiation signal. A compensation coefficient calculating unit calculates a compensation coefficient... | 09/06/2011 |
| 8010065 | Power amplifier system and control method and control device thereof A power amplifier system, a control method thereof, and a control device thereof are provided. The power amplifier system operates in a non-linear switching mode according to an envelope amplitude of an input signal under control of the control device. When the powe... | 08/30/2011 |
| 8005444 | Multiple die integrated circuit assembly An integrated circuit (IC) includes a first die, a second die, a packaging substrate, and coupling circuit. The first die includes first circuitry and the second die includes second circuitry. The packaging substrate supports the first and second dies, wherein the f... | 08/23/2011 |
| 7979039 | Pre-distorting a transmitted signal for offset cancellation In one embodiment, the present invention includes a pre-driver to receive data of a first clock phase and to pre-drive the data, a driver coupled to the pre-driver to drive the data onto a link operable to be coupled to a receiver, and an offset driver to drive an o... | 07/12/2011 |
| 7974596 | Power control scheme for a power amplifier In one embodiment, a method includes detecting a power level of a power amplifier coupled to a transceiver during a current burst of a radio communication and providing the detected power level from the power amplifier to the transceiver and controlling a power leve... | 07/05/2011 |
| 7970362 | RF transmitter with compensation of differential path delay A transmitter has a power amplifier (40) to amplify an input signal having amplitude modulation, a supply voltage controller (10) to control a supply voltage of the power amplifier (40) according to the envelope, a sensor (R1) for sensing... | 06/28/2011 |
