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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 |
| 7613232 |
Method for automatic control of RF output level of a repeater |
Nov. 3, 2009 |
| 7613248 |
Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems |
Nov. 3, 2009 |
| 7613250 |
Distortion compensation apparatus |
Nov. 3, 2009 |
| 7613251 |
Distortion compensating apparatus and method |
Nov. 3, 2009 |
| 7609781 |
Wireless communication device with self calibration feature for controlling power output |
Oct. 27, 2009 |
| 7609780 |
Method and apparatus for performing sequential closed loop multiple input multiple output (MIMO) |
Oct. 27, 2009 |
| 7606322 |
Digital pre-distortion technique using nonlinear filters |
Oct. 20, 2009 |
| 7606324 |
Digital pre-distortion technique using non-linear filters |
Oct. 20, 2009 |
| 7606539 |
Adaptive predistorter coupled to a nonlinear element |
Oct. 20, 2009 |
| 7599418 |
Method and apparatus for a frequency hopper |
Oct. 6, 2009 |
| 7596185 |
Radio transmitter with variable amplifier units in the baseband section and in the radio-frequency section of the transmission path |
Sep. 29, 2009 |
| 7593480 |
Transmission device and radio communication device |
Sep. 22, 2009 |
| 7593481 |
CDMA, W-CDMA, 3.sup.rd generation interoperable modem format selectable (MFS) systems with GMSK modulated systems |
Sep. 22, 2009 |
| 7593478 |
Low peak to average ratio search algorithm |
Sep. 22, 2009 |
| 7593477 |
Training sequence for linearizing an RF amplifier |
Sep. 22, 2009 |
| 7593484 |
Radio frequency (RF) receiver with double loop integrated fast response automatic gain control (AGC) |
Sep. 22, 2009 |
| 7590190 |
System and method for forward path gain control in a digital predistortion linearized transmitter |
Sep. 15, 2009 |
| 7586995 |
Peak windowing for crest factor reduction |
Sep. 8, 2009 |
| 7586996 |
Method for controlling the power of the output signal from an amplifier system and the associated system |
Sep. 8, 2009 |
| 7583754 |
Method and system for broadband predistortion linearization |
Sep. 1, 2009 |
| 7580476 |
Communication system and method for improving efficiency and linearity |
Aug. 25, 2009 |
| 7570711 |
Quadrature LINC transmission method and apparatus |
Aug. 4, 2009 |
| 7570689 |
Advanced receiver with sliding window block linear equalizer |
Aug. 4, 2009 |
| 7570709 |
Automatic transmit power control loop with modulation averaging |
Aug. 4, 2009 |
| 7570710 |
In-phase and quadrature-phase signal amplitude and phase calibration |
Aug. 4, 2009 |
| 7570187 |
Technique for improving modulation performance of translational loop RF transmitters |
Aug. 4, 2009 |
| 7567625 |
Apparatus and method for sub-carrier allocation in a multiple-input and multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system |
Jul. 28, 2009 |
| 7564305 |
System and method for self-cancellation of N.sup.th-order intermodulation products |
Jul. 21, 2009 |
| 7564922 |
RF transmitter for efficiently compensating output power variation due to temperature and process |
Jul. 21, 2009 |
| 7565118 |
Polar modulation transmission apparatus and wireless communication apparatus |
Jul. 21, 2009 |
| 7565119 |
Predistortion correction loop-back based on high linearity and low linearity modes |
Jul. 21, 2009 |
| 7561636 |
Digital predistortion apparatus and method in power amplifier |
Jul. 14, 2009 |
| 7561629 |
Multicarrier receiver and transmitter with delay correcting function |
Jul. 14, 2009 |
| 7558333 |
Distortion tolerant linear phase modulations |
Jul. 7, 2009 |
| 7558313 |
Cross-correlated TDMA, spread spectrum, CDMA and OFDM systems |
Jul. 7, 2009 |
| 7558334 |
Enhanced hybrid class-S modulator |
Jul. 7, 2009 |
| 7555057 |
Predistortion calibration in a transceiver assembly |
Jun. 30, 2009 |
| 7555059 |
Low power distributed transmitter |
Jun. 30, 2009 |
| 7555268 |
RF transmitter having multiple constant transmit power levels |
Jun. 30, 2009 |
| 7555272 |
Transmission arrangement for transmitting data continuously in the time domain |
Jun. 30, 2009 |
| 7551688 |
Waveforms for envelope tracking transmitter |
Jun. 23, 2009 |
| 7551687 |
Distortion compensating apparatus |
Jun. 23, 2009 |
| 7551689 |
Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios |
Jun. 23, 2009 |
| 7551905 |
Distortion compensation apparatus |
Jun. 23, 2009 |
| 7548133 |
Modulation of an RF transmit signal |
Jun. 16, 2009 |
| 7545881 |
Method and apparatus for controlling spurious transmissions in a communications system |
Jun. 9, 2009 |
| 7545883 |
Diversity wireless systems |
Jun. 9, 2009 |
| 7545880 |
Multiple polynomial digital predistortion |
Jun. 9, 2009 |
| 7542741 |
System and method for power mapping to compensate for power amplifier gain control variations |
Jun. 2, 2009 |
| 7542733 |
Method and apparatus for diversity transmission from a mobile station |
Jun. 2, 2009 |
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