219136 ⎘
Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements; Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
Sub-classes:WIRELESS COMMUNICATIONS SYSTEM, POWER SUPPLY SYSTEM, AND TERMINAL DEVICE
#2SYSTEM AND METHOD FOR MANAGING THE OPERATION OF A TRAVELLING WAVE TUBE AMPLIFIER
#3Analog amplitude pre-distortion circuit and method
#4Tracker module, power amplifier module, radio frequency module, and communication device
#5WIRELESS COMMUNICATIONS SYSTEM, POWER SUPPLY SYSTEM, AND TERMINAL DEVICE
#6Amplifier circuit
#7Broadband high power amplifier
#8PAM-4 transmitter precoder for 1+0.5D PR channels
#9High-efficiency amplifier
#10Method for producing an amplification stage for a variable envelope signal
#11Amplifiers with delta-sigma modulators using pulse-density modulations and related processes
#12Frequency selective low noise amplifier circuit
#13Audio signal correction and calibration for a room environment
#14Amplification of electromagnetic waves via interaction with an electron beam by using a waveguide having a linear interaction channel with curved parts and including rows of pillars extending through the waveguide
#15Audio signal correction and calibration for a room environment
#16RF signal generating circuit, and transmitter
#17Audio signal correction and calibration for a room environment
#18Transmitting RF signals employing both digital and analog components with a common amplifier
#19Transmission arrangement and method for operating an amplifier in a transmission arrangement
#20PAM-4 transmitter precoder for 1+0.5D PR channels