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)
10/2003
10/30/2003US20030201826 High frequency switch, amplifying circuit, and mobile communication terminal
10/30/2003US20030201825 Switched-capacitor, common-mode feedback circuit for a differential amplifier without tail current
10/30/2003US20030201823 System and apparatus for reducing offset voltages in folding amplifiers
10/30/2003US20030201801 Differential circuit and peak hold circuit including differential circuit
10/30/2003US20030201382 Automatic gain control device for a burst-mode optical receiver
10/30/2003US20030201381 Photodiode optical power monitor
10/29/2003EP1357717A1 Automatic detection threshold control device for burst mode optical receiver
10/29/2003EP1357685A2 Burst-mode optical receiver
10/29/2003EP1357666A1 High frequency switch, amplifying circuit, and mobile communication terminal
10/29/2003EP1357665A2 Automatic gain control device for a burst-mode optical receiver
10/29/2003EP1357663A2 Differential circuit, amplifier circuit, driver circuit and display device using those circuits
10/29/2003EP1356599A2 Amplifier phase change compensation
10/29/2003EP1356584A2 Class e doherty amplifier topology for high efficiency signal transmitters
10/29/2003EP1356538A1 Reconfigurable broadband active power splitter, ditto power combiner and ditto bidirectional power splitter/power combiner and circuits based on these
10/29/2003EP1356447A1 Drive circuit for liquid crystal displays and method therefor
10/29/2003EP1356356A2 Bias circuit for maintaining a constant value of transconductance divided by load capacitance
10/29/2003EP0795956B1 Power amplifier and communication device
10/29/2003CN1452850A Dynamic power sharing in multi-channel sound system
10/29/2003CN1452314A Automatic track feedback circuit and high-speed A/D converter therewith
10/29/2003CN1126244C Gain changeable amplifier circuit
10/29/2003CN1126081C Device for amplifying and converting current sygnals into voltage signals
10/28/2003US6640090 Signal transmitter utilizing ask modulation wave
10/28/2003US6639491 Tunable ferro-electric multiplexer
10/28/2003US6639473 Method and/or apparatus for controlling a common-base amplifier
10/28/2003US6639472 High bandwidth, low power, single stage cascode transimpedance amplifier for short haul optical links
10/28/2003US6639470 Constant current biasing circuit for linear power amplifiers
10/28/2003US6639468 Low-noise amplifier, in particular for a cellular mobile telephone
10/28/2003US6639466 Amplifier bias adjustment circuit to maintain high-output third-order intermodulation distortion performance
10/28/2003US6639464 Composite amplifier
10/28/2003US6639463 Adaptive power amplifier system and method
10/28/2003US6639462 Digital AM transmitter having tracking power supply compensation
10/28/2003US6639461 Ultra-wideband power amplifier module apparatus and method for optical and electronic communications
10/28/2003US6639460 Residual offset correction method and circuit for chopper stabilized amplifiers
10/28/2003US6639457 CMOS transconductor circuit with high linearity
10/28/2003US6639456 Current mirror and method for operating a current mirror
10/28/2003US6639453 Active bias circuit having wilson and widlar configurations
10/28/2003US6639446 High linearity, high gain mixer circuit
10/28/2003US6639310 Pin arrangement for high frequency integrated circuit
10/23/2003WO2003054924A3 Differential current source with active common mode reduction
10/23/2003WO2002013375A3 Method and apparatus for improving power supply rejection in amplifier rail to rail output stages
10/23/2003WO2001097384A3 Real time correction of a digital pwm amplifier
10/23/2003US20030199256 Memory-based amplifier load adjust system
10/23/2003US20030199255 Contactless IC card system
10/23/2003US20030199153 Method of producing SI-GE base semiconductor devices
10/23/2003US20030199130 CMOS high impedance circuit
10/23/2003US20030197575 Integrated circuit low noise amplifier and applications thereof
10/23/2003US20030197574 Power splitter/combiner circuit, high power amplifier and balun circuit
10/23/2003US20030197563 Amplification circuit and optical communication apparatus provided with the amplification circuit
10/23/2003US20030197562 Filter circuits based on trans-conductor circuits
10/23/2003US20030197560 Dual gain amplification low noise amplifier
10/23/2003US20030197557 Multichannel power amplifying
10/23/2003US20030197556 Power control and modulation of switched-mode power amplifiers with one or more stages
10/23/2003US20030197555 Integrated current mirror in output stage of operational amplifier
10/23/2003US20030197551 Potential generating circuit capable of correctly controlling output potential
10/23/2003DE10205022C1 Load current detection circuit has amplification of difference amplifier signal proportional to load current halved in free-running mode of H-bridge circuit containing load
10/22/2003EP1355464A2 DC removal in an optical receiver
10/22/2003EP1355437A1 Bottom level detection device for burst mode optical receiver
10/22/2003EP1355427A1 Differential comparator circuit
10/22/2003EP1355418A1 Audio superpositioning
10/22/2003EP1355417A1 Microphone input buffer biasing circuit
10/22/2003EP1355416A1 CMOS high impedance circuit
10/22/2003EP1355415A2 Switched microphone buffer
10/22/2003EP1355414A1 Ripple rejection for amplifier
10/22/2003EP1354408A2 Method and apparatus for use in switched capacitor systems
10/22/2003EP1354399A2 Differential amplifier with large input common mode signal range
10/22/2003EP0966750B1 Device, notably for controlling a travelling-wave tube
10/22/2003CN1450652A Semiconductor device and mfg method and power amplifier moudle
10/21/2003US6636414 High power variable slide RF tuner
10/21/2003US6636125 Modulation device of the pulse width of very high-frequency signals
10/21/2003US6636119 Compact cascode radio frequency CMOS power amplifier
10/21/2003US6636118 High-frequency power amplification module and radio communication device
10/21/2003US6636117 Input/output buffer incorporating filter for powerline communications line
10/21/2003US6636116 Fully differential current feedback amplifier
10/21/2003US6636115 Amplifier and mixer with improved linearity
10/21/2003US6636114 High frequency power amplifier module and wireless communication apparatus
10/21/2003US6636113 Load compensation technique for reactive impedance transformation amplifier output stage
10/21/2003US6636112 High-efficiency modulating RF amplifier
10/21/2003US6636111 Bootstrap circuit to cancel input bias currents of a differential amplifier over most of common-mode input voltage range
10/21/2003US6636109 Amplification circuit with constant output voltage range
10/21/2003US6636103 Amplifier system with on-demand power supply boost
10/21/2003US6636098 Differential integrator and related circuitry
10/21/2003US6636083 Leakage current cancellation technique for low power switched-capacitor circuits
10/21/2003CA2226818C Opposed current power converter
10/16/2003WO2003086014A1 Impedance converter for capacitor microphone
10/16/2003WO2003085849A1 Communication apparatus
10/16/2003WO2003085823A1 Signal amplifier and integrated circuit
10/16/2003WO2003043181A3 Class-f amplifier using an lc output filter network
10/16/2003WO2003034386A3 Method and system for ramp control of precharge voltage
10/16/2003WO2002069489A3 An automatic gain control circuit with high linearity and monotonically correlated offset voltage
10/16/2003US20030194971 Dual mode class D amplifiers
10/16/2003US20030194970 Dual mode class D amplifiers
10/16/2003US20030194244 Burst-mode optical receiver of differential output structure
10/16/2003US20030194101 Audio superpositioning
10/16/2003US20030194100 Microphone input buffer biasing circuit
10/16/2003US20030194081 Ripple rejection for amplifier
10/16/2003US20030193495 Digital communication system and method
10/16/2003US20030193492 Thin film transistor circuit and display utilizing the same
10/16/2003US20030193370 System and method of amplifier gain control by variable bias and degeneration
10/16/2003US20030193369 Zero-bias bypass switching circuit using mismatched 90 degrees hybrid
10/16/2003US20030193368 Zero-bias bypass switch
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