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Class Information
Number: 330/260
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier > Having signal feedback means
Description: Subject matter wherein a portion of the electrical signal output energy is applied to the input of the amplifier.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Patent Number Title Of Patent Date Issued
8692616 Operational amplifier, analog arithmetic circuit, and analog to digital converter Apr. 8, 2014
8686889 Analog frontend for CCD/CIS sensor Apr. 1, 2014
8670730 Power efficient radio frequency transmitter Mar. 11, 2014
8624672 Integrated circuit Jan. 7, 2014
8604871 High gain amplifier method using low-valued resistances Dec. 10, 2013
8604877 Differential amplifier Dec. 10, 2013
8604879 Matched feedback amplifier with improved linearity Dec. 10, 2013
8593226 Transimpedance amplifier Nov. 26, 2013
8576007 High speed amplifier Nov. 5, 2013
8570106 Positive feedback common gate low noise amplifier Oct. 29, 2013
8571507 Analog signal processing device for phased array antennas Oct. 29, 2013
8564369 Linear amplifier Oct. 22, 2013
8552801 Amplifier common-mode control methods Oct. 8, 2013
8552799 Power amplifying circuit Oct. 8, 2013
8514021 Radio frequency integrated circuit Aug. 20, 2013
8509290 Closed-loop digital power control for a wireless transmitter Aug. 13, 2013
8503967 Amplifier and associated receiver Aug. 6, 2013
8489035 Radio communication transceiver Jul. 16, 2013
8482265 Current balance circuit utilizing multiplexers and triangular wave generators Jul. 9, 2013
8476977 LCD driving circuit using operational amplifier and LCD display apparatus using the same Jul. 2, 2013
8476974 Differential amplifier and method for the operation of a differential amplifier Jul. 2, 2013
8471631 Bias circuit, power amplifier, and current mirror circuit Jun. 25, 2013
8471633 Differential amplifier and data driver Jun. 25, 2013
8471639 Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff Jun. 25, 2013
8466744 Amplifier and signal filter Jun. 18, 2013
8461926 Differential amplifier circuit Jun. 11, 2013
8441313 Current-mode analog baseband apparatus May. 14, 2013
8442628 Differential voltage sensing method May. 14, 2013
8432223 Differential amplifier circuit Apr. 30, 2013
8427355 Time-interleaved pipelined-SAR analog to digital converter with low power consumption Apr. 23, 2013
8427236 Operational amplifier, driver and display Apr. 23, 2013
8410847 Input common mode voltage compensation circuit Apr. 2, 2013
8385846 Active load isolator and wireless speaker for mixed signal environments Feb. 26, 2013
8378748 Amplifier Feb. 19, 2013
8368673 Output buffer and source driver using the same Feb. 5, 2013
8354885 Operational amplifier Jan. 15, 2013
8344805 High-frequency differential amplifier circuit Jan. 1, 2013
8330199 Semiconductor device having resistors with a biased substrate voltage Dec. 11, 2012
8319554 Amplifier with start-up common mode feedback Nov. 27, 2012
8310310 Burst mode amplifier Nov. 13, 2012
8311785 Methods and apparatus to minimize saturation in a ground fault detection device Nov. 13, 2012
8310309 Noise-canceling for differential amplifiers requiring no external matching Nov. 13, 2012
8305140 Linear, large swing active resistive circuit and method Nov. 6, 2012
8299850 Device with reconfigurable continuous and discrete time functionality Oct. 30, 2012
8300850 Read-out circuit with high input impedance Oct. 30, 2012
8289079 LCD driving circuit using operational amplifier and LCD display apparatus using the same Oct. 16, 2012
8289080 Current-mode amplifier Oct. 16, 2012
8285230 Amplifying circuit, semiconductor integrated circuit, wireless transmission system, and communication apparatus Oct. 9, 2012
8279006 Low noise amplifier Oct. 2, 2012
8279003 Differential RF amplifier Oct. 2, 2012

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