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Class Information
Number: 330/51
Name: Amplifiers > Combined with automatic amplifier disabling switch means
Description: Subject matter combined with switch means, which may be of the electromechanical or electronic tube type (vacuum, gas, or vapor tubes), to disable or discontinue the operation of the amplifier automatically in response to a predetermined condition.

Patents under this class:

Patent Number Title Of Patent Date Issued
8710927 High-frequency power amplifier Apr. 29, 2014
8710923 Method and apparatus for controlling peak amplifier and doherty power amplifier Apr. 29, 2014
8705752 Low frequency noise reduction circuit architecture for communications applications Apr. 22, 2014
8704600 Power amplifier Apr. 22, 2014
8693679 Communications system and associated method for reducing power consumption of a telecommunications device Apr. 8, 2014
8692613 Modified dynamic load scaling (MDLS) technique for implementing high efficiency low power mode operation Apr. 8, 2014
8687821 Plop-free amplifier Apr. 1, 2014
8680923 Output circuit Mar. 25, 2014
8680920 Area efficient, programmable-gain amplifier Mar. 25, 2014
8680917 Analog circuit and display device and electronic device Mar. 25, 2014
8660502 High frequency antenna switch module Feb. 25, 2014
8659353 Asymmetric multilevel outphasing architecture for RF amplifiers Feb. 25, 2014
8659352 Power amplifier Feb. 25, 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
8649751 Receiver Feb. 11, 2014
8648656 Low-noise amplifier with through-mode Feb. 11, 2014
8643435 Apparatus and method for expanding operation region of power amplifier Feb. 4, 2014
8643433 Bypass power amplifier for improving efficiency at low power Feb. 4, 2014
8638167 Operational amplifier Jan. 28, 2014
8638164 Amplifier including dithering switch and display driving circuit using the amplifier Jan. 28, 2014
8633767 Amplifier circuit with noise suppression and related noise suppression method thereof Jan. 21, 2014
8629719 Amplifier circuit and method for signal sensing Jan. 14, 2014
8629717 Power consumption control circuit, amplifier circuit and power consumption control method Jan. 14, 2014
8626098 Automatic gain control with programmable attack and decay times Jan. 7, 2014
8618879 Semiconductor device Dec. 31, 2013
8618876 Reduced power-consumption transmitters Dec. 31, 2013
8615089 Dynamic power management in a portable media delivery system Dec. 24, 2013
8614601 Power amplifier and operating method thereof Dec. 24, 2013
8614600 Switch configuration for default-on N-way active splitters Dec. 24, 2013
8610496 Switched amplifier circuit arrangement and method for switched amplification Dec. 17, 2013
8600081 Audio signal amplifying circuit Dec. 3, 2013
8598951 Linear multi-mode power amplifier for dynamic supply operation Dec. 3, 2013
8598950 Apparatus and methods for capacitive load reduction Dec. 3, 2013
8588330 Quadrature communications device with I antennas and Q antennas and related methods Nov. 19, 2013
8587373 Power amplifier Nov. 19, 2013
8581661 Audio programmable gain amplifier with automatic reconfiguration Nov. 12, 2013
8576002 ADC preamplifier and the multistage auto-zero technique Nov. 5, 2013
8565341 Power amplifier and semiconductor integrated circuit Oct. 22, 2013
8564366 High-frequency power amplifier device Oct. 22, 2013
8558613 Apparatus and method for digitally-controlled automatic gain amplification Oct. 15, 2013
8553908 Amplification apparatus Oct. 8, 2013
8553802 Quadrature communications device with I antennas and Q antennas and modulated power supply and related methods Oct. 8, 2013
8552798 Method for offset compensation of a switched-capacitor amplifier and switched capacitor amplifier arrangement Oct. 8, 2013
8547177 All-digital switched-capacitor radio frequency power amplification Oct. 1, 2013
8536950 Multi-stage impedance matching Sep. 17, 2013
8525590 Power amplifier control circuit Sep. 3, 2013
8525589 Pop sound reduction circuit and audio circuit having such pop reduction circuit for use in audio amplifier Sep. 3, 2013
8519795 High frequency power amplifier Aug. 27, 2013
8514015 Amplifier with programmable off voltage Aug. 20, 2013

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