Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
12/2012
12/05/2012CN102811023A Power amplifier
12/05/2012CN101626219B Miller compensation method for offsetting feedforward path
12/05/2012CN101534133B Wireless transceiver
12/05/2012CN101467346B Doherty power amplifier
12/05/2012CN101394131B Switching regulator control circuit, switching regulator and switching regulator control method
12/05/2012CN101299596B Adaptive biasing input stage and amplifiers including the same
12/05/2012CN101060309B 信号处理电路和信号处理方法 A signal processing circuit and a signal processing method
12/04/2012US8327367 Information service providing system, information service providing device, and method therefor
12/04/2012US8326581 Crash sensor and method for processing at least one measuring signal
12/04/2012US8326580 Sparse sampling of signal innovations
12/04/2012US8324964 High efficiency multiple power mode linear radio frequency power amplifier
12/04/2012US8324667 Amplifiers using gated diodes
11/2012
11/29/2012WO2012161406A1 Differential amplifier
11/29/2012WO2012160755A1 High-frequency amplifier circuit
11/29/2012US20120299657 Multi-mode power amplifier
11/29/2012US20120299651 Feed-back and feed-forward systems and methods to reduce oscillator phase-noise
11/29/2012DE102007059350B4 Impedanzabbildende Verstärkerschaltung mit ausschließlich reaktiver Gegenkopplung und Reihenschaltung Impedance Imaging amplifier circuit with only reactive feedback and series circuitry
11/29/2012DE10128570B4 Verbesserte Anstiegsgeschwindigkeit in Verstärkerschaltungen Improved rate of rise in amplifier circuits
11/28/2012EP2528229A1 Multi-band power amplifier
11/28/2012EP2526618A1 HIGH VOLTAGE, HIGH FREQUENCY ESD PROTECTION CIRCUIT FOR RF ICs
11/28/2012CN202565231U V-shaped electronic tube amplifier
11/28/2012CN202565227U Audio power amplifier chip
11/28/2012CN102804596A Method and apparatus for using pre-distortion and feedback to mitigate nonlinearity of circuits
11/28/2012CN102804595A Improving input impedance of low noise preamplifiers used for MRI
11/28/2012CN102801420A Amplifying circuit and analog digital conversion circuit with the same
11/28/2012CN102801392A Radio frequency power amplification device
11/28/2012CN102801391A Modular feedforward power amplifier
11/28/2012CN102801390A POP noise suppression circuit in D audio frequency amplifier
11/28/2012CN102801389A Ultra-low power consumption low-noise amplifier
11/28/2012CN102801388A Headphone amplification circuit capable of removing noise
11/28/2012CN102801387A Dual-mode dual-band high-efficiency Doherty power amplifier
11/28/2012CN101785178B Circuitry and method for reducing second and third-order nonlinearities
11/28/2012CN101465623B Differential amplifier with symmetric ciruict topology
11/27/2012US8319550 Switched-capacitor programmable-gain amplifier
11/22/2012WO2012158431A1 Current buffer
11/22/2012WO2012158429A1 Positive feedback common gate low noise amplifier
11/22/2012WO2012158419A1 Power supply with rectifier protection
11/22/2012WO2012157645A1 Power amplifier and operating method for same
11/22/2012WO2012157418A1 Power supply device, transmission device using same, and method for operating power supply device
11/22/2012WO2012157296A1 Amplifier circuit and wireless communication device
11/22/2012WO2012156947A1 Amplifier
11/22/2012WO2012156946A1 Radio frequency integrated circuit
11/22/2012WO2012156945A1 Amplifier
11/22/2012WO2012156470A1 Time and amplitude alignment in envelope tracking amplification stage
11/22/2012WO2012155786A1 Method for improving power amplifier working efficiency and communication terminal
11/22/2012US20120294201 Amplifier apparatus, signal processing apparatus, radio communication apparatus, connector mounting structure, and coaxial connector
11/22/2012US20120293353 Operational amplifier
11/22/2012US20120293265 Radio Frequency Integrated Circuit
11/22/2012US20120293263 Operational amplifier
11/22/2012US20120293262 Amplifier
11/22/2012US20120293261 Amplifier with Start-up Common Mode Feedback
11/22/2012US20120293250 Amplifier
11/22/2012DE10321442B4 Treiberschaltung Driver circuit
11/22/2012DE102012009835A1 Eingangsgleichtaktschaltung für einenvolldifferenzverstärker Input common-mode circuit for a fully differential amplifier
11/21/2012EP2525488A1 Amplifying device and signal processing device
11/21/2012EP2524568A1 High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications
11/21/2012EP2524425A1 An amplifier circuit with step gain
11/21/2012CN202550970U High-frequency compensation circuit of vacuum tube amplifier
11/21/2012CN202550966U Broadband voltage tuned amplifier
11/21/2012CN202550965U Avalanche photodiode detection circuit
11/21/2012CN102792587A Active mute scheme for an amplifier
11/21/2012CN102792584A Planar audio amplifier output inductor with current sense
11/21/2012CN102792583A Reducing pulse error distortion
11/21/2012CN102790593A Parallel-resistance feedback differential low-noise amplifier
11/21/2012CN102035478B Frequency compensation circuit applicable to high speed integrated amplifier
11/21/2012CN101867284B Control method of fast tracking power supply, fast tracking power supply and system
11/21/2012CN101431604B Image signal amplifying circuit and amplifying semiconductor integrated circuit
11/21/2012CN101335140B Variable circuit, communication apparatus, mobile communication apparatus and communication system
11/20/2012US8315408 Prevention of audio pop in a digital audio device
11/20/2012US8314656 Power series digital predistorter and distortion compensation control method thereof
11/15/2012WO2012154840A2 System providing switchable impedance transformer matching for power amplifiers
11/15/2012WO2012154447A1 Linearization in the presence of phase variations
11/15/2012WO2012154445A1 Digital pre-distortion with carrier cancellation
11/15/2012WO2012154441A1 Interpolation-based digital pre-distortion architecture
11/15/2012WO2012154430A1 Pre-distortion architecture for compensating non-linear effects
11/15/2012WO2012153207A1 Digital output power measurement in radio communication systems
11/15/2012WO2012152033A1 Digital predistortion method and device
11/15/2012US20120286877 Power amplifier
11/15/2012US20120286874 Positive feedback common gate low noise amplifier
11/15/2012US20120286867 Amplifier apparatus, radio transmitting apparatus including same, and method of adjusting gain of amplifier apparatus
11/15/2012US20120286866 Amplifier performance stabilization through preparatory phase
11/15/2012US20120286865 Pre-Distortion Architecture for Compensating Non-Linear Effects
11/15/2012US20120286864 Linearization in the Presence of Phase Variations
11/15/2012US20120286863 Apparatus and method of digital predistortion for power amplifiers with dynamic nonlinearities
11/15/2012US20120286862 Safety switching device for setting a safety-related device to a safe state
11/14/2012EP2523345A2 Apparatus and methods for high voltage amplification with low noise
11/14/2012EP2522074A1 Impedance circuit and method for signal transformation
11/14/2012EP2522073A1 Broadband analog radio-frequency components
11/14/2012EP2522072A2 Power amplifier with feedback impedance for stable output
11/14/2012CN202535310U Multistep multi-way Doherty amplifier
11/14/2012CN102783017A Amplifier with improved input resistance and controlled common mode
11/14/2012CN102783016A Amplifier offset and noise reduction in a multistage system
11/14/2012CN102780460A PA (power amplifier) overpower protecting method and device
11/14/2012CN102780459A Pseudorandom modulation-demodulation chopping circuit applied to MEMS (micro-electro-mechanical system) reading circuit
11/14/2012CN102780458A Circuit and method for eliminating difference signal noise and chip for receiving difference signals
11/14/2012CN102780457A Low noise amplifier
11/14/2012CN102780456A Low noise amplifier
11/14/2012CN101924520B Base station power amplifier and method for enhancing efficiency of base station power amplifier
11/14/2012CN101626355B Calibration device and calibration method of multi-input multi-output (MIMO) terminal
11/14/2012CN101466197B Circuit board and power amplifier double-channel transmit-receive unit and wireless base station provided thereon
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