Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › 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)
08/2005
08/03/2005EP1560408A1 xDSL-line-interface-circuit
08/03/2005EP1560346A1 Distortion compensation amplifying apparatus and base station
08/03/2005EP1560330A1 Optical detector circuit
08/03/2005EP1560327A1 Multi-band look-up table type predistorter
08/03/2005EP1559199A2 Rf circuit with frequency agile sequential amplifiers
08/03/2005CN2715423Y Differential amplifying circuit, its output control circuit and Schmidt trigger circuit
08/03/2005CN2715422Y Offset circuit
08/03/2005CN1650515A Operational amplifier with increased common mode input range
08/03/2005CN1650513A Amplifier circuits and their use in radio frequency transmitters
08/03/2005CN1649258A Multi-band look-up table type predistorter
08/03/2005CN1649256A Signal output apparatus
08/03/2005CN1648800A Method for obtaining time information and radio clock
08/02/2005US6925325 Voltage sensing system with input impedance balancing for electrocardiogram (ECG) sensing applications
08/02/2005US6925184 Method for converting two-channel audio system into multichannel audio system and an audio processor thereof
08/02/2005US6925115 Apparatus and method for safely handling asychronous shutdown of pulsewidth modulated output
08/02/2005US6924757 Sigma-delta modulator with reduced switching rate for use in class-D amplification
08/02/2005US6924715 Band reject filters
08/02/2005US6924713 High bandwidth magnetically isolated signal transmission circuit
08/02/2005US6924703 Amplifier circuit with a shared current source
08/02/2005US6924702 Low supply voltage and self-biased high speed receiver
08/02/2005US6924701 Method and apparatus for compensating an amplifier
08/02/2005US6924700 Class D amplifier
08/02/2005US6924696 Method and apparatus for common-mode level shifting
08/02/2005US6924695 Power supply processing for power amplifiers
08/02/2005US6924681 Efficient pulse amplitude modulation transmit modulation
08/02/2005US6924674 Composite source follower
07/2005
07/28/2005WO2005069484A1 Configurable amplifier circuit
07/28/2005WO2005069483A1 Amplifier
07/28/2005WO2005069097A1 Transistor arrangement with temperature compensation and method for temperature compensation
07/28/2005WO2005067609A2 Improved power supply rejection for pulse width modulated amplifiers and automatic gain control
07/28/2005WO2005031968A8 Input/output signals preserver circuit of amplification circuits
07/28/2005US20050164671 Reducing active mixer flicker noise
07/28/2005US20050164656 Distortion compensation amplifying apparatus and base station
07/28/2005US20050164649 Low-noise differential bias circuit and differential signal processing apparatus
07/28/2005US20050163457 Control circuit for IEEE 1394b optical transmission protocol
07/28/2005US20050163306 Method and apparatus for providing a splitter in a notification system
07/28/2005US20050162294 Radio frequency digital-to-analog converter
07/28/2005US20050162233 Use of analog-valued floating-gate transistors for parallel and serial signal processing
07/28/2005US20050162232 Operational amplifier including low DC gain wideband circuit and high DC gain narrowband gain circuit
07/28/2005US20050162231 Signal output apparatus
07/28/2005US20050162230 Multi-operational amplifier system
07/28/2005US20050162229 Compound load for differential circuits
07/28/2005US20050162228 Power amplifier
07/28/2005US20050162225 Multi-band look-up table type predistorter
07/28/2005US20050162224 Front stage amplifier with different modes
07/28/2005US20050162223 Class-D amplifier
07/28/2005US20050162222 Amplifier using delta-sigma modulation
07/28/2005US20050162221 Amplifier apparatus for use with a sensor
07/28/2005US20050162217 Bias circuit
07/28/2005US20050162213 Differential charge pump circuit
07/28/2005US20050162210 Voltage subtracting circuit carrying out voltage subtraction by converting input voltage into current, intensity detecting circuit, and semiconductor integrated circuit device using the same
07/28/2005US20050162198 Operational amplifier including low DC gain wideband feed forward circuit and high DC gain narrowband gain circuit
07/28/2005US20050162194 Transconductance varying circuit of transconductor circuit, varying bandwidth filter circuit using the same and digital tuning circuit of transconductor-capacitor filter
07/28/2005US20050162193 High performance sense amplifiers
07/28/2005US20050162190 Fully differential input buffer with wide signal swing range
07/27/2005EP1557949A1 Low-noise differential bias circuit and differential signal processing apparatus
07/27/2005EP1557942A1 Reflected power suppression circuit
07/27/2005EP1557941A1 Filter circuit and radio device
07/27/2005EP1556945A2 Predistortion linearizing
07/27/2005EP1456942A4 Time division multiplexed pwm amplifier
07/27/2005CN2713735Y Low-frequency amplification module with tracing filtration and digital gain control function
07/27/2005CN2713734Y Power amplifier with OTG network data processing equipment
07/27/2005CN1647396A Transmitter and wireless communication apparatus using the transmitter
07/27/2005CN1647368A Electronic amplifier circuit
07/27/2005CN1647367A Switched-mode power amplifier integrally performing power combining
07/27/2005CN1647366A A differential amplifier
07/27/2005CN1647365A Self-biased cascode RF power amplifier in sub-micron
07/27/2005CN1647006A Current shutdown circuit for active bias circuit having process variation compensation
07/27/2005CN1645743A Offset control amplifier and its forming method
07/27/2005CN1645742A Digital temperature compensating method and circuit for analog computing amplifier
07/27/2005CN1645741A Low-noise differential bias circuit and differential signal processing apparatus
07/27/2005CN1212745C Radio frequency power amplifier module integrating power control circuit
07/26/2005US6922556 System and method for establishing a bias current using a feedback loop
07/26/2005US6922550 Communication device with efficient excitation of a resonant circuit
07/26/2005US6922474 Shock sound prevention circuit
07/26/2005US6922319 Adaptively controlled circuit
07/26/2005US6922107 Dual (constant voltage/constant current) bias supply for linear power amplifiers
07/26/2005US6922106 Divided-voltage FET power amplifiers
07/26/2005US6922105 Operational amplifier
07/26/2005US6922104 Power amplifier distortion compensation apparatus and method thereof
07/26/2005US6922102 High efficiency amplifier
07/26/2005US6922101 Phase shift modulation class D amplifier
07/26/2005US6922100 Method and apparatus for switching amplification having variable sample point and variable order correction
07/26/2005US6922093 Radio frequency amplifier and method of driving the same
07/26/2005US6922045 Current driver and method of precisely controlling output current
07/21/2005WO2005067164A1 Signal repeater system
07/21/2005WO2005067149A1 A switched capacitor circuit compensation apparatus and method
07/21/2005WO2005067139A1 Amplifier
07/21/2005WO2005067138A1 Method and apparatus for effecting high-frequency amplification or oscillation
07/21/2005WO2005057815A8 Optical fiber radio transmission system, transmission device, and reception device
07/21/2005WO2005055415A3 Single chip power amplifier and envelope modulator
07/21/2005WO2005048456A3 Multi-level pulse width modulation in digital system
07/21/2005US20050159665 Synthesizing a reference value in an electrocardial waveform
07/21/2005US20050159119 Reflected power suppression circuit
07/21/2005US20050159117 Class-L power-output amplifier
07/21/2005US20050156844 Semiconductor circuit
07/21/2005US20050156830 Image display apparatus and inspection method thereof
07/21/2005US20050156672 High frequency power amplifier circuit
07/21/2005US20050156668 Amplifier, data driver and display apparatus having the same
07/21/2005US20050156667 Differential amplifier
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