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Browse by Category: Main > Communications
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:
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Patent Number Title Of Patent Date Issued
7251293 Digital pre-distortion for the linearization of power amplifiers with asymmetrical characteristics Jul. 31, 2007
7251292 Technique and apparatus for low power wireless communication Jul. 31, 2007
7251290 Adaptive controller for linearization of transmitter Jul. 31, 2007
7248644 Circuit and method for compensating for nonliner distortion of power amplifier Jul. 24, 2007
7243037 Signal processing device, use of the signal processing device and method for signal processing Jul. 10, 2007
7242728 Quadrature modulator carrier quadrature error detection method and quadrature modulation device Jul. 10, 2007
7239203 LMS-based adaptive pre-distortion for enhanced power amplifier efficiency Jul. 3, 2007
7236901 Digital broadband frequency measurement Jun. 26, 2007
7236542 Multi-mode envelope restoration architecture for RF transmitters Jun. 26, 2007
7233811 Radio device with transmission directivity, and control method and control program for the radio device Jun. 19, 2007
7230997 Semiconductor integrated circuit for communication, radio-communications apparatus, and transmission starting method Jun. 12, 2007
7227909 High-quality power ramping in a communications transmitter Jun. 5, 2007
7225389 Method and circuit for correcting power amplifier distortion May. 29, 2007
7221915 Electromagnetic wave transmitter, receiver and transceiver systems, methods and articles of manufacture May. 22, 2007
7215717 Distortion compensation circuit May. 8, 2007
7212584 Distortion compensator May. 1, 2007
7206557 Method and apparatus for suppressing local oscillator leakage in a wireless transmitter Apr. 17, 2007
7203247 Digital predistortion technique for WCDMA wireless communication system and method of operation thereof Apr. 10, 2007
7200367 Constant gain digital predistortion controller for linearization of non-linear amplifiers Apr. 3, 2007
7197287 Data transmission method, base station and transmitter for compensating for non-linearities in a transmission chain Mar. 27, 2007
7197286 Radio with a distortion compensation capability Mar. 27, 2007
7197087 System and method for differential IQ delay compensation in a communications system utilizing adaptive AQM compensation Mar. 27, 2007
7197086 Wide-bandwidth, high-dynamic-range linear amplifier for a CDMA transmitter in a wireless base station Mar. 27, 2007
7197085 Frequency-dependent magnitude pre-distortion for reducing spurious emissions in communication networks Mar. 27, 2007
7190935 Amplifier power detection circuitry Mar. 13, 2007
7184714 Frequency domain estimation of IQ imbalance in a wireless OFDM direct conversion receiver using loopback connection Feb. 27, 2007
7184491 Wireless communication apparatus Feb. 27, 2007
7184490 Low power distributed transmitter Feb. 27, 2007
7177605 Power amplification device, in particular for a cellular mobile telephone Feb. 13, 2007
7177603 Constant gain digital predistortion controller for linearization of non-linear amplifiers Feb. 13, 2007
7177370 Method and architecture for dual-mode linear and saturated power amplifier operation Feb. 13, 2007
7173987 Analog front end circuit Feb. 6, 2007
7173555 Method and system for nonlinear and affine signal processing Feb. 6, 2007
7173484 System and method of carrier reinjection in a feedforward amplifier Feb. 6, 2007
7170953 Method and apparatus for a transceiver having a constant power output Jan. 30, 2007
7170344 Multi-band predistorter using power series representation Jan. 30, 2007
7167523 Spacial derivative bus encoder and decoder Jan. 23, 2007
7161990 Predistortion amplifier Jan. 9, 2007
7149484 Portable communication device having adjustable amplification and method therefor Dec. 12, 2006
7146138 Power boosting technique for wireless multi-carrier power amplifier Dec. 5, 2006
7142615 Distortion compensator Nov. 28, 2006
7136628 Adaptive digital predistortion method and apparatus for wireless transmitter Nov. 14, 2006
7133651 Transmission apparatus for mobile communication terminal Nov. 7, 2006
7133466 Amplifying apparatus Nov. 7, 2006
7130595 Transmitter power amplifier ramping method Oct. 31, 2006
7130594 Power amplification device, especially with reduced input dynamic swing, in particular for a cellular mobile telephone Oct. 31, 2006
7130357 Apparatus and method for compensating error for analog quadrature modulator (AQM) Oct. 31, 2006
7126999 Pseudo-polar modulation for radio transmitters Oct. 24, 2006
7123664 Multi-mode envelope restoration architecture for RF transmitters Oct. 17, 2006
7116949 Semiconductor integrated circuit device and wireless communication system Oct. 3, 2006

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