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)
05/2005
05/03/2005US6888406 Highly linear variable gain amplifier
05/03/2005US6888403 Pulse width modulation type audio amplifier having variable average switching frequency
05/03/2005US6888402 Low voltage current reference circuits
05/03/2005US6888396 Multi-cascode transistors
05/03/2005US6888389 Digital control variable delay circuit which is hardly susceptible to noise
05/03/2005US6888378 Semiconductor integrated circuit
04/2005
04/30/2005CA2729743A1 Switched resonant ultrasonic power amplifier system
04/30/2005CA2729742A1 Switched resonant ultrasonic power amplifier system
04/28/2005WO2005039136A1 Modulating apparatus and modulating method
04/28/2005WO2005039062A2 Amplifier with capacitor selection
04/28/2005WO2005039046A1 Method and apparatus for resetting a buffer amplifier
04/28/2005WO2005039045A1 Electronic circuit for voltage to current amplification
04/28/2005WO2005039044A1 Electronic circuit for amplification of a bipolar signal
04/28/2005WO2005039043A1 Amplifier circuit
04/28/2005WO2005039042A1 Non-linear circuit, radio communication device, and non-linear amplification method
04/28/2005WO2005039041A1 Microphone preamplifier
04/28/2005WO2005039040A1 Method and apparatus for realizing a low noise amplifier
04/28/2005WO2004027827A3 Integrated circuit with automatic polarity detection and configuration
04/28/2005US20050090913 Parameter display method and program therefor, and parameter setting apparatus
04/28/2005US20050090223 Use of a down-bond as a controlled inductor in integrated circuit applications
04/28/2005US20050090210 Communication apparatus
04/28/2005US20050090209 High linearity, high efficiency power amplifier with DSP assisted linearity optimization
04/28/2005US20050089178 Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system
04/28/2005US20050088390 Differential amplifier
04/28/2005US20050088329 Output circuit, digital analog circuit and display device
04/28/2005US20050088263 High performance switch for switched inductor tuned RF circuit
04/28/2005US20050088262 Tuning RF circuits using switched inductors
04/28/2005US20050088253 Switchable combinder and integrated combining apparatus for using it
04/28/2005US20050088242 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
04/28/2005US20050088241 Use of an internal on-chip inductor for electrostatic discharge protection of circuits which use bond wire inductance as their load
04/28/2005US20050088238 High speed amplifier incorporating pre-emphasis
04/28/2005US20050088236 Power amplifier module
04/28/2005US20050088235 System and method for receiver equalization
04/28/2005US20050088234 Transconductance amplifier
04/28/2005US20050088233 Driver circuit
04/28/2005US20050088232 Techniques to lower drive impedance and provide reduced dc offset
04/28/2005US20050088231 Power amplifier
04/28/2005US20050088229 Programmable gain instrumentation amplifier having improved dielectric absorption compensation and common mode rejection ratio
04/28/2005US20050088228 Common mode feedback amplifier
04/28/2005US20050088226 Switching amplifier architecture
04/28/2005US20050088205 Composite source follower
04/28/2005US20050088203 Tail current generator circuit for bipolar/MOS differential pair to set precise transconductance
04/28/2005US20050088163 Semiconductor integrated circuit
04/28/2005US20050087887 RF circuit electrostatic discharge protection
04/28/2005US20050087688 Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method
04/27/2005EP1526637A1 Tuning RF circuits using switched inductors
04/27/2005EP1526572A2 Semiconductor package with bond wire inductors
04/27/2005EP1247337B1 Power amplifier core
04/27/2005EP1190483A4 Load compensation technique for reactive impedance transformation amplifier output stage
04/27/2005EP1157457A4 A closed loop calibration for an amplitude reconstruction amplifier
04/27/2005CN2696207Y Multi-sound-channel power amplifier
04/27/2005CN1611004A Regenerating amplifier circuit
04/27/2005CN1610258A Hysteresis circuit used for comparator
04/27/2005CN1610248A Low-noise amplifier
04/27/2005CN1608585A Bioelectrical detection circuit
04/27/2005CN1199350C Overvoltage protection
04/27/2005CN1199349C Multi-reference, high-accuracy switching amplifier
04/27/2005CN1199348C Bridging load output class D amplifier using filter coil and low pass electric filter
04/26/2005US6885855 High frequency amplification circuit
04/26/2005US6885827 High sensitivity, high resolution detection of signals
04/26/2005US6885532 Current detection and overcurrent protection for transistors in pulse-width modulation amplifier
04/26/2005US6885341 Inverted-F ferroelectric antenna
04/26/2005US6885263 Tunable ferro-electric filter
04/26/2005US6885249 Optical signal receiving circuit and optical signal receiving semiconductor device
04/26/2005US6885248 Single-ended differential circuit using complementary devices
04/26/2005US6885247 Current amplifier
04/26/2005US6885246 High frequency amplifier
04/26/2005US6885245 Differential amplifier and comparator using the same
04/26/2005US6885244 Operational amplifier with fast rise time
04/26/2005US6885243 Dynamic, digitally controlled, temperature compensated voltage reference
04/26/2005US6885240 Amplifying circuit with variable load drivability
04/26/2005US6885222 High-speed cross-coupled sense amplifier
04/26/2005US6885221 Signal detection apparatus, signal detection method, signal transmission system, and computer readable program to execute signal transmission
04/21/2005WO2005036764A1 Power saving in a transmitter
04/21/2005WO2005036739A1 Transmission device, transmission output control method, and radio communication device
04/21/2005WO2005036738A1 Charge-amplifier electronic circuit
04/21/2005WO2005036737A1 Monolithic array amplifier with periodic bias-line bypassing structure and method
04/21/2005WO2005036736A1 Transconductance circuit
04/21/2005WO2005036735A1 Power supply compensation
04/21/2005WO2005036734A1 Power supply compensation
04/21/2005WO2005036733A2 Differential amplifier arrangement
04/21/2005WO2005036732A1 Method and apparatus to match output impedance of combined outphasing power amplifiers
04/21/2005WO2005036731A2 Power conversion system
04/21/2005WO2005013478A8 Method for voltage stabilisation on electrodes of source-drain transistors of a power amplifier output stage and an output stage for carrying out said method
04/21/2005WO2004102788A3 Rf amplifier employing active load linearization
04/21/2005WO2004093328A3 Bidirectional distributed amplifier
04/21/2005WO2004049556A3 Direct coupled distributed amplifier
04/21/2005US20050085862 Implantable cardiac stimulation device including an output circuit that provides arbitrarily shaped defibrillation waveforms
04/21/2005US20050085205 Radio frequency unit analog level detector and feedback control system
04/21/2005US20050085200 Antenna interface unit
04/21/2005US20050083723 Output circuit for a semiconductor amplifier element
04/21/2005US20050083234 Wireless device reconfigurable radiation desensitivity bracket systems and methods
04/21/2005US20050083135 Integrated circuit
04/21/2005US20050083134 Amplifier circuit
04/21/2005US20050083133 Balanced amplifier circuit and high-frequency communication apparatus
04/21/2005US20050083131 MMIC distributed amplifier gate control using active bias
04/21/2005US20050083128 [power amplifier with active bias circuit]
04/21/2005US20050083127 High frequency power amplifier
04/21/2005US20050083126 Method and circuit for a dual supply amplifier
04/21/2005US20050083125 Variable gain amplifier capable of functioning at low power supply voltage
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