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Class Information
Number: 375/297
Name: Pulse or digital communications > Transmitters > Antinoise or distortion (includes predistortion) > Power amplifier
Description: Subject matter including an amplifier which is used for the modulation process in the transmitter.

Patents under this class:

Patent Number Title Of Patent Date Issued
8605774 Amplitude/phase delay calibration for envelope-tracking amplifier Dec. 10, 2013
8600442 Power recovery circuit based on partial standing waves Dec. 3, 2013
8599963 Method and apparatus for optimizing transmitter power efficiency Dec. 3, 2013
8594233 Quadrature communications device with power combiner and related methods Nov. 26, 2013
8594232 System for predistortion and post-distortion correction of both a receiver and transmitter during calibration Nov. 26, 2013
8594231 Power series digital predistorter and distortion compensation control method therefor Nov. 26, 2013
8588353 Frequency selective IQ correction Nov. 19, 2013
8588333 RF transmitter and method of operation Nov. 19, 2013
8588330 Quadrature communications device with I antennas and Q antennas and related methods Nov. 19, 2013
8576945 Method of and apparatus for signal amplification Nov. 5, 2013
8576944 Signal transmitting apparatus for OFDM system and parameter adjusting method thereof Nov. 5, 2013
8576942 High efficiency transmitter Nov. 5, 2013
8576941 Configurable basis-function generation for nonlinear modeling Nov. 5, 2013
8571495 Distortion compensation apparatus and method Oct. 29, 2013
8565343 Transmit power control utilizing loopback error vector magnitude thresholds Oct. 22, 2013
8565342 Power amplification apparatus, OFDM modulation apparatus, wireless transmission apparatus, and distortion reduction method for power amplification apparatus Oct. 22, 2013
8565341 Power amplifier and semiconductor integrated circuit Oct. 22, 2013
8565338 High bandwidth modulation and transmission Oct. 22, 2013
8565336 Data transmission apparatus and method, and data reconstitution apparatus and method Oct. 22, 2013
8564368 Digital Predistorter (DPD) structure based on dynamic deviation reduction (DDR)-based volterra series Oct. 22, 2013
8553802 Quadrature communications device with I antennas and Q antennas and modulated power supply and related methods Oct. 8, 2013
8553790 Low power ultra wideband transceivers Oct. 8, 2013
8552593 Non-contact power transmission apparatus Oct. 8, 2013
8548404 Linearization of power amplifiers through digital in-band predistortion followed by analog predistortion Oct. 1, 2013
8548093 Power amplification based on frequency control signal Oct. 1, 2013
8548091 Measuring and correcting errors in a transmit chain with an IQ up-converter and IQ down-converter Oct. 1, 2013
8542769 High output power digital TX Sep. 24, 2013
8542768 High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications Sep. 24, 2013
8537723 LTE-Advanced (4G) front end radio architecture Sep. 17, 2013
8532223 Power amplifying device and power amplifying method Sep. 10, 2013
8532215 Multi-carrier amplifier linearization system and method Sep. 10, 2013
8526537 Digital pre-distortion processing method and apparatus Sep. 3, 2013
8526536 Quad LINC transmitter with switchable Chireix amplifiers Sep. 3, 2013
8526535 Mobile wireless communications device with separate in-phase (I) and quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensation Sep. 3, 2013
8526533 Systems and methods for measuring I-Q mismatch Sep. 3, 2013
8525592 Power amplification device, transmitter, and power amplification control method Sep. 3, 2013
8520773 Power amplifier digital predistortion system for concurrent dual band inputs Aug. 27, 2013
8520772 Communication device and power correction method Aug. 27, 2013
8520771 WCDMA modulation Aug. 27, 2013
8520766 Transmitter and communication apparatus Aug. 27, 2013
8515367 Transmission circuit and transmission method Aug. 20, 2013
8514974 Method and apparatus for controlling a transmit power Aug. 20, 2013
8514973 Pre-equalisation for UMTS base station Aug. 20, 2013
8514969 Amplitude control circuit, polar modulation transmission circuit, and polar modulation method Aug. 20, 2013
8514019 Distortion compensation amplifier Aug. 20, 2013
8509712 Multi-dimensional volterra series transmitter linearization Aug. 13, 2013
8509349 Transmitter and distortion compensating method Aug. 13, 2013
8509348 Up-converted and amplified transmission signal using log-antilog Aug. 13, 2013
8509343 Methods and apparatus for amplifying and transmitting signals Aug. 13, 2013
8509290 Closed-loop digital power control for a wireless transmitter Aug. 13, 2013

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