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)
11/2006
11/23/2006	US20060261892 Nested transimpedance amplifier
11/23/2006	US20060261891 Low voltage CMOS differential amplifier
11/23/2006	US20060261890 Circuits and methods for implementing power amplifiers for millimeter wave applications
11/23/2006	US20060261887 High efficiency power amplifier
11/23/2006	US20060261886 System and method for reducing audible artifacts in an audio system
11/23/2006	US20060261885 Global loop integrating modulator
11/23/2006	DE10202199B4 Schaltungsanordnung zur Steuerung einer Hochspannung Circuit arrangement for controlling a high voltage
11/23/2006	DE102005036100A1 Amplifier arrangement e.g. integrated circuit, for use in e.g. communication technology, has two resistor networks, whose resistances have same nominal values, where resistor networks are connected with two inputs and output of amplifier
11/23/2006	DE10031521B4 Integrierter Schaltkreis mit einem Analogverstärker An integrated circuit comprising an analog amplifier
11/23/2006	CA2824905A1 Method and system for determining the amplitude and/or phase of the output signal for a transmission body depending on the amplitude of the input signal
11/22/2006	EP1724928A1 Signal processing device and method, signal processing program, and recording medium where the program is recorded
11/22/2006	EP1724918A1 SiGe differential cascode amplifier with Miller effect resonator
11/22/2006	EP1723738A1 Method and system for reducing pop noise of a sound broadcasting instrument
11/22/2006	EP1723718A1 Eer modulator with power amplifier having feedback loop providing soft output impedance
11/22/2006	EP1520341B1 Amplifier circuit
11/22/2006	EP1310039B1 Transmitter including a composite amplifier
11/22/2006	EP1301989B1 Composite amplifier
11/22/2006	EP1230731B1 Transconductor with controllable transconductance for low supply voltages
11/22/2006	CN1868131A Activation signal output circuit
11/22/2006	CN1868118A Method and apparatus for resetting a buffer amplifier
11/22/2006	CN1868117A 跨导电路 Transconductance circuit
11/22/2006	CN1868116A Electronic circuit for amplification of a bipolar signal
11/22/2006	CN1868115A Amplifier circuit
11/22/2006	CN1868114A 麦克风前置放大器 Microphone Preamplifier
11/22/2006	CN1866734A Operational amplifier with less offset voltage
11/22/2006	CN1866733A Power amplifier
11/22/2006	CN1866732A High-frequency power amplifying circuit
11/22/2006	CN1866731A Power series predistorter and control method thereof
11/22/2006	CN1866730A Linear biasing circuit with adaptability
11/22/2006	CN1866729A 射频功率放大器 RF power amplifier
11/22/2006	CN1866728A Digital amplifier, pulse width modulator thereof and method for reducing pop noise for the same
11/22/2006	CN1286270C CMOS reverse circuit and DC shift detecting circuit
11/22/2006	CN1286268C Current switching circuit
11/21/2006	US7139624 Audio signal processing device
11/21/2006	US7139539 Adaptive power pooling apparatus and method in a mobile communication system
11/21/2006	US7139538 Electronic component for amplifying high frequency power and radio communication system
11/21/2006	US7139526 Variable high power amplifier with constant overall gain for a satellite communication system
11/21/2006	US7139206 Memory component with improved noise insensitivity
11/21/2006	US7138876 Use of a thick oxide device as a cascode for a thin oxide transconductance device in MOSFET technology and its application to a power amplifier design
11/21/2006	US7138875 Cascoded power amplifier, particularly for use in radio frequency
11/21/2006	US7138874 Two-stage amplifier
11/21/2006	US7138873 Filter circuit providing low distortion and enhanced flexibility to obtain variable gain amplification
11/21/2006	US7138872 Power amplifier device
11/21/2006	US7138871 MMIC distributed amplifier gate control using active bias
11/21/2006	US7138870 System and method for providing a lossless and dispersion-free transmission line
11/21/2006	US7138868 Method and circuit for trimming a current source in a package
11/21/2006	US7138867 Balanced variable gain amplifier capable of achieving performance by low source voltage
11/21/2006	US7138866 Operational amplifier including low DC gain wideband circuit and high DC gain narrowband gain circuit
11/21/2006	US7138865 Differential amplifiers with enhanced gain and controlled common-mode output level
11/21/2006	US7138864 Overcurrent protection in amplifier topologies employing DC isolation
11/21/2006	US7138862 Power amplifier and radio communication device using the amplifier
11/21/2006	US7138861 Load mismatch adaptation in coupler-based amplifiers
11/21/2006	US7138860 System and method for envelope modulation
11/21/2006	US7138859 Signal processing device and class D amplifier that can reduce radiation noise even if the number of channels of a digital audio signal inputted thereto increases
11/21/2006	US7138858 Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry
11/16/2006	WO2006121629A2 System and method for providing an input to a distributed power amplifying system
11/16/2006	WO2006119786A1 Method for stabilization of dc-potential at the output of a preamplifier and amplifier circuit
11/16/2006	WO2006019606A3 Auxiliary transistor gate bias control system and method
11/16/2006	WO2005114833A3 Self-oscillation switching amplifier
11/16/2006	US20060257153 Optical receiver applicable to multiple transmission speed
11/16/2006	US20060255861 Semiconductor integrated circuit device
11/16/2006	US20060255859 Method and apparatus for improved clock preamplifier with low jitter
11/16/2006	US20060255858 Gain control circuit capable of reducing change in gain due to variation of ambient temperature
11/16/2006	US20060255857 Power amplifier
11/16/2006	US20060255856 Operational amplifier with less offset voltage
11/16/2006	DE102005051285A1 Integrierte Breit-Bandbreiten-Dämpfungs- und -Verstärkungs-Schaltung Integrated wide-bandwidth and damping -Verstärkungs circuit
11/16/2006	DE102005020803A1 Load current determining circuit arrangement for semiconductor switch, has deactivation circuit to temporarily deactivate offset compensation arrangement, which is coupled to input of amplifier, for period after level change of signals
11/15/2006	EP1721386A1 Differential stage voltage offset trim circuitry
11/15/2006	EP1658544A4 A constant-voltage circuit
11/15/2006	EP1597823B1 Integrated amplifier arrangement
11/15/2006	CN2838144Y Circuit against bad audio quality resulted from dynamic distortion of power amplifier IC
11/15/2006	CN1864337A Power saving in a transmitter
11/15/2006	CN1864334A Full bridge integral noise shaping for quantization of pulse width modulation signals
11/15/2006	CN1864325A Transmission device, transmission output control method, and radio communication device
11/15/2006	CN1864324A 功率转换系统 Power conversion system
11/15/2006	CN1864323A High frequency amplifier in an integrated circuit
11/15/2006	CN1864116A Method and apparatus for compensating for temperature drift in semiconductor processes and circuitry
11/15/2006	CN1862954A Integrated wide bandwidth attenuating-and-amplifying circuit
11/15/2006	CN1862953A Single-side shift compensating method for operational amplifier
11/15/2006	CN1862952A High frequency power amplifier, transmitter and mobile communication terminal using the power amplifier
11/15/2006	CN1862951A Method for regulating linearity of multi-stage power amplifier
11/15/2006	CN1862265A Apparatus and method for detecting linear index of power amplifier
11/15/2006	CN1285172C CMOS comparator
11/15/2006	CN1285169C Predistortion digital linearizing circuit and gain control method
11/14/2006	US7136764 Variable gain amplifier circuit
11/14/2006	US7136036 Method and apparatus for uniform brightness in displays
11/14/2006	US7135932 Transimpedance amplifier
11/14/2006	US7135931 Negative conductance power amplifier
11/14/2006	US7135930 Switched supply for operational amplifier
11/14/2006	US7135929 Bias voltage circuit with ultra low output impedance
11/14/2006	US7135928 Method for transconductance linearization for DC-coupled applications
11/14/2006	US7135927 Ultra fast, low noise operational amplifier with dynamic biasing
11/14/2006	US7135926 Adaptable voltage control for a variable gain amplifier
11/14/2006	US7135925 Adaptive bias scheme for high-voltage compliance in serial links
11/14/2006	US7135924 Cross-talk reduction circuit and method therefor
11/14/2006	US7135923 Differential amplifier
11/14/2006	US7135922 Power supply rejection for pulse width modulated amplifiers and automatic gain control
11/14/2006	US7135921 Differential circuit, amplifier circuit, driver circuit and display device using those circuits
11/14/2006	US7135920 Method and circuit for facilitating control of AC coupling in an amplifier circuit
11/14/2006	US7135918 Linear power amplifier circuit with a modulated power supply signal

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