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Class Information
Number: 330/295
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including plural amplifier channels
Description: Subject matter having more than one signal transmission path, each of which contains an amplifier (e.g., plural inputs or plural outputs).










Patents under this class:

Patent Number Title Of Patent Date Issued
8710928 Semiconductor power amplifier Apr. 29, 2014
8710927 High-frequency power amplifier Apr. 29, 2014
8710924 Doherty amplifier circuit Apr. 29, 2014
8710923 Method and apparatus for controlling peak amplifier and doherty power amplifier Apr. 29, 2014
8692615 Enhanced transconductance circuit Apr. 8, 2014
8686794 Amplifying apparatus Apr. 1, 2014
8686791 Amplifying apparatus and distortion compensation method Apr. 1, 2014
8659354 Power-amplifier arrangement Feb. 25, 2014
8659352 Power amplifier Feb. 25, 2014
8653890 Amplifier calibration Feb. 18, 2014
8653889 Doherty amplifier having compact output matching and combining networks Feb. 18, 2014
8653887 Method and arrangement in a mobile communication system Feb. 18, 2014
8653886 Method and arrangement in a mobile communications system Feb. 18, 2014
8638168 Digital power amplifier Jan. 28, 2014
8634789 Multi-mode power amplifier Jan. 21, 2014
8629722 Doherty amplifier and method for operation thereof Jan. 14, 2014
8629718 Signal splitting apparatus suitable for use in a power amplifier Jan. 14, 2014
8618883 N-way doherty distributed power amplifier with power tracking Dec. 31, 2013
8618878 Multiport amplifier and wireless device using the same Dec. 31, 2013
8610504 Dual band amplifier Dec. 17, 2013
8610503 Apparatus and methods for oscillation suppression Dec. 17, 2013
8610502 Re-configurable amplifier Dec. 17, 2013
8604881 Efficiency improvement of doherty power amplifier using supply switching and digitally controlled gate bias modulation of peaking amplifier Dec. 10, 2013
8604880 Buffering apparatus and method Dec. 10, 2013
8598954 Doherty amplifier and semiconductor device Dec. 3, 2013
8593219 Method and apparatus for amplifying a radio frequency signal Nov. 26, 2013
8587375 Power amplifier linearization method and apparatus Nov. 19, 2013
8581665 Doherty amplifier Nov. 12, 2013
8576010 Apparatus and method for a switched capacitor architecture for multi-band doherty power amplifiers Nov. 5, 2013
8570103 Flexible multi-channel amplifiers via wavefront muxing techniques Oct. 29, 2013
8565341 Power amplifier and semiconductor integrated circuit Oct. 22, 2013
8564367 Power amplifier Oct. 22, 2013
8564366 High-frequency power amplifier device Oct. 22, 2013
8558620 Radial power amplification device with phase dispersion compensation of the amplification paths Oct. 15, 2013
8558613 Apparatus and method for digitally-controlled automatic gain amplification Oct. 15, 2013
8547177 All-digital switched-capacitor radio frequency power amplification Oct. 1, 2013
8547174 Broadband linearizer with combined second and third order generation with adjustable tilt Oct. 1, 2013
8547172 Optical transmitter with multiple isolated inputs and signal combining network Oct. 1, 2013
8536948 Power amplifier Sep. 17, 2013
8526536 Quad LINC transmitter with switchable Chireix amplifiers Sep. 3, 2013
8525594 Radio frequency amplifier circuit Sep. 3, 2013
8521221 Dual mode RF transceiver and receiving method of the same Aug. 27, 2013
8519795 High frequency power amplifier Aug. 27, 2013
8519787 High frequency amplifier, wireless device, and control method Aug. 27, 2013
8508299 High-frequency power amplifier Aug. 13, 2013
8508296 Tunable directional power combiner Aug. 13, 2013
8508295 Amplifier Aug. 13, 2013
8497738 Broadband power combining method and high power amplifier using same Jul. 30, 2013
8493152 Power amplifier Jul. 23, 2013
8487703 Radiofrequency amplifier Jul. 16, 2013











 
 
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