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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
8711976 Pre-distortion architecture for compensating non-linear effects Apr. 29, 2014
8711974 Systems and methods for mitigating spectral regrowth from non-linear systems Apr. 29, 2014
8711971 Multiple input multiple output transceiver Apr. 29, 2014
8711957 Apparatus and method for transmitting and receiving data Apr. 29, 2014
8705657 Digital signal processing circuit for generating output signal according to non-overlapping clock signals and input bit streams and related wireless communication transmitters Apr. 22, 2014
8705654 Measuring phase shift in a radio frequency power amplifier Apr. 22, 2014
8705595 Digital output power measurement in radio communication systems Apr. 22, 2014
8693962 Analog power amplifier predistortion methods and apparatus Apr. 8, 2014
8693562 Method for receiving two decorrelated signals transmitted on a single channel and receiver for implementing said method Apr. 8, 2014
8692702 Analog-digital converter and power saving method thereof Apr. 8, 2014
8687981 Method and system for split voltage domain transmitter circuits Apr. 1, 2014
8687734 Non-causal orthogonal frequency division multiplexing tapered peak suppression Apr. 1, 2014
8687733 Digital predistortion (DPD) method and system for selecting at least one data sample Apr. 1, 2014
8681898 Signal amplifying apparatus, wireless transmitting apparatus, and signal amplifying method Mar. 25, 2014
8675770 Transmitter circuit with integrated power control Mar. 18, 2014
8675714 Trace canceller with equalizer adjusted for trace length driving variable-gain amplifier with automatic gain control loop Mar. 18, 2014
8670732 Broadband amplifier system using a 3dB quadrature combiner to dynamically modulate load impedance Mar. 11, 2014
8670730 Power efficient radio frequency transmitter Mar. 11, 2014
8670503 Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios Mar. 11, 2014
8670491 Device and method for time synchronization in a communication network Mar. 11, 2014
8666336 Digital pre-distortion with model-based order estimation Mar. 4, 2014
8665931 Calibration of communication processing path Mar. 4, 2014
8660208 Apparatus and methods for QAM modulation using dual polar modulation Feb. 25, 2014
8655292 Amplifier circuit, transmitter, and method of controlling amplifier circuit Feb. 18, 2014
8655289 Distortion compensation device, transmitter, and distortion compensation method Feb. 18, 2014
8654891 Peak suppressing apparatus, peak suppressing method and wireless communications apparatus Feb. 18, 2014
8654884 Channel equalization using application specific digital signal processing in high-speed digital transmission systems Feb. 18, 2014
8654867 Transformer power combiner with filter response Feb. 18, 2014
8649746 Apparatus and method for processing reduced bandwidth envelope tracking and digital pre-distortion Feb. 11, 2014
8649744 Radio-frequency transmitter, such as for broadcasting and cellular base stations Feb. 11, 2014
8649743 Transmitter linearized using inversing and non-inversing transform processing sections and method therefor Feb. 11, 2014
8645884 Multi-layer memory structure for behavioral modeling in a pre-distorter Feb. 4, 2014
8639197 Method and system to prevent harmonics from causing distortion in a communications system Jan. 28, 2014
8638892 Adaptive narrowband interference prediction circuit and method Jan. 28, 2014
8638837 Radio communication apparatus Jan. 28, 2014
8634495 System, method and apparatus for mobile transmit diversity using symmetric phase difference Jan. 21, 2014
8634494 Bandpass sampling schemes for observation receiver for use in PA DPD system for concurrent multi-band signals Jan. 21, 2014
8626089 Adaptive predistorter coupled to a nonlinear element Jan. 7, 2014
8625708 Polar transmitter suitable for monolithic integration in SoCs Jan. 7, 2014
8625683 Serial data transmission system and method Jan. 7, 2014
8620240 Power amplifier and power amplifying method Dec. 31, 2013
8620234 High efficiency linearization power amplifier for wireless communication Dec. 31, 2013
8619906 Look up table-based sum predistorter for power amplifification with concurrent dual band inputs Dec. 31, 2013
8619905 Predistorter and distortion compensation method Dec. 31, 2013
8615208 Transmitter linearized in response to signal magnitude derivative parameter and method therefor Dec. 24, 2013
8615054 Close-loop power amplifier pre-distortion correction Dec. 24, 2013
8611460 Wireless communication unit, integrated circuit and method of power control of a power amplifier therefor Dec. 17, 2013
8611459 Transmitter linearized using look-up table with unadaptable data and method therefor Dec. 17, 2013
8611402 Fast envelope system calibration Dec. 17, 2013
8605819 Memory effect canceller, transmitter, and memory effect cancelling method Dec. 10, 2013

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