H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
12/2006
12/07/2006	WO2006047473A3 A signal-enhancement system for photodetector outputs
12/07/2006	US20060276159 Low noise amplifier with constant input impedance
12/07/2006	US20060273857 Variable-gain amplifier with high linearity as to gain variations
12/07/2006	US20060273856 Operation amplifier circuit having digital driving circuitry and analog driving circuitry
12/07/2006	US20060273855 Noise sensitive volume control device, audio device and noise sensitive volume control method
12/07/2006	US20060273852 Amplifiers
12/07/2006	US20060273851 Method and apparatus for low-frequency bypass in broadband RF circuitry
12/07/2006	US20060273831 Differential delay-line analog-to-digital converter
12/07/2006	US20060273243 Optical signal receiving circuit
12/07/2006	DE112004002703T5 Treiberschaltkreis Driver circuit
12/06/2006	EP1728321A1 Switch mode power supply with output voltage equalizer
12/06/2006	EP1728320A1 Method and apparatus for doherty amplifier biasing
12/06/2006	EP1728084A1 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit
12/06/2006	CN2845312Y Multicarrier peak inhibitor
12/06/2006	CN2845311Y Device for reducing multicarrier peak
12/06/2006	CN1875541A Power level controlling of first amplification stage for an integrated RF power amplifier
12/06/2006	CN1874161A Instrument and method in high bandwidth for generating differential signal
12/06/2006	CN1874153A Comparator circuit device, in particular the same for semiconductor element
12/06/2006	CN1874144A Multi-band lookup table type predistorter
12/06/2006	CN1288839C Fully differential, variable-gain amplifier and a multidimensional amplifier arrangement
12/06/2006	CN1288836C Self-oscillation power amplifier
12/05/2006	US7146194 Amplifying circuit, speaker system, and mobile information terminal employing amplifying circuit
12/05/2006	US7146141 Direct conversion receiver with DC offset compensation and method thereof
12/05/2006	US7146015 Frequency threshold audio activity detector
12/05/2006	US7145531 Electronic circuit, electronic device, electro-optical apparatus, and electronic unit
12/05/2006	US7145397 Output overvoltage protection circuit for power amplifier
12/05/2006	US7145394 High frequency power amplifier module, and wireless communication system
12/05/2006	US7145393 Operational amplifier with class-AB+B output stage
12/05/2006	US7145392 Methods and apparatus for variable harmonic distortion
12/05/2006	US7145391 Bias current cancellation for differential amplifiers
12/05/2006	US7145390 Differential power amplifier and method in class AB mode
12/05/2006	US7145389 Temperature controlled, log-linear gain control circuit for amplifiers
12/05/2006	US7145388 Control loop having an amplifier arrangement
12/05/2006	US7145387 Composite power amplifier
12/05/2006	US7145386 Configurable input amplifier for position-measuring devices
12/05/2006	US7145385 Single chip power amplifier and envelope modulator
12/05/2006	US7145384 Pulse length matched filter
12/05/2006	US7145377 Device and method for converting an input signal
11/2006
11/30/2006	WO2006127855A2 Fast setting, low noise, low offset operational amplifier and method
11/30/2006	WO2006126559A1 Amplifying apparatus
11/30/2006	WO2006126436A1 Signal converting circuit
11/30/2006	US20060268969 Automatic bit rate control circuit
11/30/2006	US20060267915 Amplifier, data driver and display apparatus having the same
11/30/2006	US20060267689 Parallel power amplifier apparatus, method, and system
11/30/2006	US20060267687 Current shunt instrumentation amplifier with extended bipolar input common mode range
11/30/2006	US20060267686 High bandwidth apparatus and method for generating differential signals
11/30/2006	US20060267685 Fast settling, low noise, low offset operational amplifier and method
11/30/2006	US20060267684 High-frequency power amplifier and radio communication equipment using the same
11/30/2006	US20060267682 Efficient power amplification system
11/30/2006	US20060267678 Non-linear circuit, radio communication device, and non-linear amplification method
11/30/2006	US20060266930 Solid state imaging device
11/29/2006	EP1727278A1 Radio frequency power amplifier
11/29/2006	EP1402628B1 Stability enhanced multistage power amplifier
11/29/2006	EP1396932B1 Wireless communication apparatus
11/29/2006	CN2842876Y Power amplifier capable of automatically switching left-right track output
11/29/2006	CN1871798A Transimpedance amplifier with receive signal strength indicator
11/29/2006	CN1871745A Method and apparatus providing integrated load matching using adaptive power amplifier compensation
11/29/2006	CN1870422A High-frequency power amplifier and radio communication equipment using the same
11/29/2006	CN1870421A Cross coupling C-type radio frequency power amplifier
11/29/2006	CN1870420A Audio amplification of Azalia multimedia digital signal coding-decoding apparatus
11/29/2006	CN1287514C Semiconductor devices
11/29/2006	CN1287513C Wide-range operating differential amplifier
11/29/2006	CN1287512C Amplifier circuit
11/29/2006	CN1287319C Multiplier
11/28/2006	US7142597 Full bridge integral noise shaping for quantization of pulse width modulation signals
11/28/2006	US7142596 Integrated circuit implementation for power and area efficient adaptive equalization
11/28/2006	US7142061 Balanced single ended to differential signal converter
11/28/2006	US7142060 Active splitter for multiple reception units
11/28/2006	US7142059 Amplifier arrangement
11/28/2006	US7142058 On-chip temperature compensation circuit for an electronic device
11/28/2006	US7142057 System to accelerate settling of an amplifier
11/28/2006	US7142056 Operational amplifier with increased common mode input range
11/28/2006	US7142055 Buffer circuit and driver IC
11/28/2006	US7142052 Travelling wave amplifiers
11/28/2006	US7142051 Power amplification circuits
11/28/2006	US7142050 Recovery from clipping events in a class D amplifier
11/28/2006	US7142049 Multi-reference switching amplifier modulation method and apparatus
11/28/2006	US7142048 Pop sound reduction circuit and voice output amplification device
11/28/2006	US7142036 Amplifier compensation techniques for switched capacitor circuits
11/28/2006	US7142034 Charge signal converting amplifier
11/28/2006	US7142017 High-voltage-tolerant feedback coupled I/O buffer
11/28/2006	US7142013 One-level zero-current-state exclusive or (XOR) gate
11/28/2006	US7142005 Method and apparatus for a reference clock buffer system
11/28/2006	US7141910 Transconductance circuit for piezoelectric transducer
11/28/2006	US7141876 Semiconductor device
11/28/2006	US7141814 Input circuit
11/28/2006	US7141779 System and method for emitting and detecting light using light emitting diode
11/28/2006	US7141775 Solid-state image-pickup device with column-line amplifiers and limiters
11/28/2006	CA2249460C Conversion of a pcm signal into a upwm signal
11/23/2006	WO2006125063A2 Increasing the linearity of a transconductance cell
11/23/2006	WO2006124087A2 Circuits and methods for implementing power amplifiers for millimeter wave applications
11/23/2006	WO2006123349A1 Method and apparatus for sensing the envelope of high level multi frequency band rf signals
11/23/2006	WO2005086690A3 Mosfet amplifier having feedback controlled transconductance
11/23/2006	US20060262446 Preamplifier circuit and method for a disk drive device
11/23/2006	US20060261900 Buffer amplifiers with enhanced efficiency
11/23/2006	US20060261899 Single-ended pseudo-differential output driver
11/23/2006	US20060261898 Analog semiconductor integrated circuit and method of adjusting same
11/23/2006	US20060261897 Radio frequency power amplifier
11/23/2006	US20060261894 Increasing the linearity of a transconductance cell
11/23/2006	US20060261893 Current-matching variable gain amplifier

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