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Class Information
Number: 330/302
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including frequency-responsive means in the signal transmission path
Description: Subject matter including frequency-responsive means in the signal transmission path that causes corresponding changes in the amplifier gain.










Sub-classes under this class:

Class Number Class Name Patents
330/306 And bandpass, broadband (e.g., wideband) or sidepass means 358
330/304 And equalizing means 114
330/305 And tuning means 261
330/303 Including an active device in the filter means 127


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

Patent Number Title Of Patent Date Issued
7642859 Power amplifier Jan. 5, 2010
7639083 Compensation for parasitic coupling between RF or microwave transistors in the same package Dec. 29, 2009
7633345 Amplifier and the method thereof Dec. 15, 2009
7633341 Wideband circuits and methods Dec. 15, 2009
7619469 Current switched circuit for switch mode power amplifiers Nov. 17, 2009
7616054 Multiple output power mode amplifier Nov. 10, 2009
7616060 Power amplifier Nov. 10, 2009
7612616 Low-noise amplifier Nov. 3, 2009
7612609 Self-stabilizing differential load circuit with well controlled complex impedance Nov. 3, 2009
7612607 Small size power amplifier with amplifiers switched Nov. 3, 2009
7612610 Active input load wide bandwidth low noise HEMT amplifier Nov. 3, 2009
7609111 Negative capacitance synthesis Oct. 27, 2009
7609115 Input circuitry for transistor power amplifier and method for designing such circuitry Oct. 27, 2009
7602240 Power amplifier with an output matching network Oct. 13, 2009
7592872 Differential amplifier with single ended output Sep. 22, 2009
7567128 Power amplifier suppressing radiation of second harmonic over wide frequency band Jul. 28, 2009
7564312 Resonant amplifier Jul. 21, 2009
7565116 High frequency module Jul. 21, 2009
7557648 Operational amplifier, integrating circuit, feedback amplifier, and controlling method of the feedback amplifier Jul. 7, 2009
7554392 Multiple output power mode amplifier Jun. 30, 2009
7554410 Power amplifier Jun. 30, 2009
7551035 Fast converter for crossing voltage domains Jun. 23, 2009
7541882 On-chip tunable artificial tank circuit Jun. 2, 2009
7541863 Transferred-impedance filtering in RF receivers Jun. 2, 2009
7541874 High-frequency power amplifier device Jun. 2, 2009
7528656 Push-pull amplifier and method for low noise amplification May. 5, 2009
7521995 Inverted doherty amplifier with increased off-state impedence Apr. 21, 2009
7518428 Phase compensation circuit and power circuit having same Apr. 14, 2009
7518446 Multi-mode power amplifier with reduced low power current consumption Apr. 14, 2009
7511573 Input/output signals preserver circuit of amplification circuits Mar. 31, 2009
7511577 DC coupled microwave amplifier with adjustable offsets Mar. 31, 2009
7512389 Active inductors using bipolar silicon transistors Mar. 31, 2009
7509100 Antenna interface unit Mar. 24, 2009
7508269 Stabilization circuit and multiband amplification circuit Mar. 24, 2009
7504888 Internally compensated differential amplifier Mar. 17, 2009
7501897 High-power amplifier Mar. 10, 2009
7498879 Summing comparator for higher order class D amplifiers Mar. 3, 2009
7495515 Low-noise amplifier Feb. 24, 2009
7486133 Transmitting output stage with adjustable output power and process for amplifying a signal in a transmitting output stage Feb. 3, 2009
7482878 Radio frequency power amplifier circuit Jan. 27, 2009
7482868 Dual mode power amplifier Jan. 27, 2009
7479827 Multi-mode power amplifier with high efficiency under backoff operation Jan. 20, 2009
7468636 Radio frequency power amplifier Dec. 23, 2008
7469133 Radio frequency power detector Dec. 23, 2008
7459972 Amplifiers with compensation Dec. 2, 2008
7453321 Amplifier arrangement and method of signal amplification Nov. 18, 2008
7449957 Radio frequency power amplifier Nov. 11, 2008
7443236 CDMA power amplifier design for low and high power modes Oct. 28, 2008
7439802 Unilateral feedback power amplifier and method for realizing the same Oct. 21, 2008
7436257 High-efficiency mixed-mode power amplifier Oct. 14, 2008

1 2 3 4 5 6 7 8 9 10 11 12 13 14










 
 
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