| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 09/08/2005 | US20050195036 Class G-amplifiers |
| 09/08/2005 | US20050195035 Variable gain amplifier having linear-in-decibel transconductance |
| 09/08/2005 | US20050195033 Differential amplifier circuit used in solid-state image pickup apparatus, and arrangement that avoids influence of variations of integrated circuits in manufacture and the like |
| 09/08/2005 | US20050195032 Differential amplifier with large input common mode signal range |
| 09/08/2005 | US20050195031 Switched mode power amplifier using lumped element impedance inverter for parallel combining |
| 09/08/2005 | US20050195025 Isolated DC-to-DC converter |
| 09/08/2005 | US20050195021 Current mode output stage circuit with open loop dc offset reduction |
| 09/08/2005 | US20050195013 Tunable current-mode integrator for low-frequency filters |
| 09/08/2005 | US20050194997 Amplitude limiting circuit |
| 09/08/2005 | US20050194995 Amplifier circuit having constant output swing range and stable delay time |
| 09/07/2005 | EP1570572A1 Single package multi-chip rf power amplifier |
| 09/07/2005 | EP1500189A4 Operational amplifier with increased common mode input range |
| 09/07/2005 | EP1125180A4 Load device |
| 09/07/2005 | EP0855101B1 An amplifier and a method for detecting the presence of a load |
| 09/07/2005 | CN2724295Y High speed high gain amplifier |
| 09/07/2005 | CN1666416A Active continuous-time filter with increased dynamic range in the presence of blocker signals |
| 09/07/2005 | CN1666412A Polyphase impedance transformation amplifier |
| 09/07/2005 | CN1666411A Amplifier circuit |
| 09/07/2005 | CN1666410A Semiconductor integrated circuit and semiconductor integrated circuit manufacturing method |
| 09/07/2005 | CN1665133A Transmitting circuit, communication equipment, audio equipment, video equipment, and transmitting method |
| 09/07/2005 | CN1218477C Parallel amplifier architecture using digital phase control techniques |
| 09/07/2005 | CN1218474C Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform |
| 09/06/2005 | US6940985 Shock sound prevention circuit |
| 09/06/2005 | US6940354 Microwave power amplifier |
| 09/06/2005 | US6940353 High frequency power amplifier |
| 09/06/2005 | US6940352 Analog signal interpolation |
| 09/06/2005 | US6940351 Amplifying circuit for transmitter capable of reducing noise |
| 09/06/2005 | US6940350 Amplifier and method for canceling nonlinearity in amplifier |
| 09/06/2005 | US6940349 Transmitter including a composite amplifier |
| 09/06/2005 | US6940348 Differential amplifier circuit with common mode output voltage regulation |
| 09/06/2005 | US6940347 Amplifier |
| 09/06/2005 | US6940344 D-class signal amplification circuit |
| 09/06/2005 | US6940343 Amplifier |
| 09/06/2005 | US6940338 Semiconductor integrated circuit |
| 09/06/2005 | US6940127 Equipment for communication system and semiconductor integrated circuit device |
| 09/06/2005 | US6939736 Ideal operational amplifier layout techniques for reducing package stress and configurations therefor |
| 09/01/2005 | WO2005081414A1 Control of a power amplifier for reducing power consumption in a transceiver |
| 09/01/2005 | WO2005081400A1 Audio amplification device with antipop circuitry |
| 09/01/2005 | WO2005081399A1 Power amplifier with stabilising network |
| 09/01/2005 | WO2005079240A2 Switching power amplifier using a frequency translating delta sigma modulator |
| 09/01/2005 | WO2005048456B1 Multi-level pulse width modulation in digital system |
| 09/01/2005 | US20050192043 Communication terminal |
| 09/01/2005 | US20050191981 Method and device for amplifying a reception signal |
| 09/01/2005 | US20050191973 High-frequency circuit device |
| 09/01/2005 | US20050190518 Current detection circuit and protection circuit |
| 09/01/2005 | US20050190090 Analog demultiplexing |
| 09/01/2005 | US20050189996 Self-biased darlington amplifier |
| 09/01/2005 | US20050189995 Multi-primary distributed active transformer amplifier power supply and control |
| 09/01/2005 | US20050189994 Electronic signal amplifier and method and article for determining the gain of such an amplifier |
| 09/01/2005 | US20050189992 Bipolar differential input stage with input bias current cancellation circuit |
| 09/01/2005 | US20050189991 Method and apparatus for phase balancing of amplifier modules |
| 09/01/2005 | US20050189990 Method and apparatus for control of predistortion linearizer based on power series |
| 09/01/2005 | US20050189989 Power amplification apparatus, and mobile communication terminal apparatus |
| 09/01/2005 | US20050189988 Series bridge circuit |
| 09/01/2005 | US20050189934 Efficient low dropout linear regulator |
| 09/01/2005 | US20050189476 Photo cell and a gain control method thereof |
| 09/01/2005 | DE102004060631A1 Gate Treiber mit Pegelumsetzung zwischen statischen Wannen ohne Leistungsversorgung Gate driver with level conversion between static baths without power supply |
| 08/31/2005 | EP1569359A1 Method and apparatus for optimizing transmitter power efficiency |
| 08/31/2005 | EP1569353A2 High frequency circuit device |
| 08/31/2005 | EP1569350A1 Power limit device and digital radio transmitter using the same |
| 08/31/2005 | EP1569332A1 Power amplifier and operational amplifier including the same |
| 08/31/2005 | EP1569331A1 Method and apparatus for control of predistortion linearizer based on power series |
| 08/31/2005 | EP1569329A1 Activation signal output circuit and determining circuit |
| 08/31/2005 | EP1568126A1 Travelling-wave amplifier |
| 08/31/2005 | EP1568125A1 Pulse width-modulated noise shaper |
| 08/31/2005 | EP1247328B1 Power converter with remote and local sensing feedback signals combined in a high-order constant-sum filter |
| 08/31/2005 | CN2722504Y Intelligent amplifier of wireless network |
| 08/31/2005 | CN2722501Y Power amplifier of tracking power supply |
| 08/31/2005 | CN1663117A Power amplification device |
| 08/31/2005 | CN1661935A High-frequency circuit device |
| 08/31/2005 | CN1661928A Distortion compensation circuit, power amplifier using distortion compensation circuit, and distortion compensation signal generating method |
| 08/31/2005 | CN1661927A Method and apparatus for optimizing transmitter power efficiency |
| 08/31/2005 | CN1661906A Saturation type microwave amplifier of single electrical source |
| 08/31/2005 | CN1661803A Photo cell and a gain control method thereof |
| 08/31/2005 | CN1661691A Signal generating circuit and optical pickup device provided therewith |
| 08/31/2005 | CN1661379A Current detection circuit and protection circuit |
| 08/31/2005 | CN1217536C Shock sound prevention circuit |
| 08/31/2005 | CN1217485C CMOS circuit with constant output swing and variable time delay for voltage controlled oscillator |
| 08/30/2005 | US6937721 Broadband driver circuit |
| 08/30/2005 | US6937720 xDSL class C-AB driver |
| 08/30/2005 | US6937668 Method of and apparatus for performing modulation |
| 08/30/2005 | US6937485 Duty ratio detecting apparatus with small return time |
| 08/30/2005 | US6937195 Inverted-F ferroelectric antenna |
| 08/30/2005 | US6937104 High speed high current gain operational amplifier |
| 08/30/2005 | US6937103 Voltage generating circuit |
| 08/30/2005 | US6937101 Dual mode power amplifier having a common controller |
| 08/30/2005 | US6937100 Amplifier circuit with common mode feedback |
| 08/30/2005 | US6937099 Op-amp configurable in a non-inverting mode with a closed loop gain greater than one with output voltage correction for a time varying voltage reference of the op-amp, and a method for correcting the output voltage of such an op-amp for a time varying voltage reference |
| 08/30/2005 | US6937098 Translinear amplifier |
| 08/30/2005 | US6937097 High-frequency power amplifier having differential inputs |
| 08/30/2005 | US6937096 Switched-mode power amplifier integrally performing power combining |
| 08/30/2005 | US6937095 Efficient, switched linear signal driver |
| 08/30/2005 | US6937093 Cathode-coupled pentode valve amplifier with servo offset controlled push-pull output stage |
| 08/30/2005 | US6937092 Audio amplifier |
| 08/30/2005 | US6937091 Class D amplifier |
| 08/30/2005 | US6937090 Charge injection reduction technique in single and multi-reference switching amplifiers |
| 08/30/2005 | US6937088 Potential generating circuit capable of correctly controlling output potential |
| 08/30/2005 | US6937083 Analog signal conditioning circuit having feedback offset cancellation |
| 08/25/2005 | WO2005078969A1 Automatic bit rate control circuit |
| 08/25/2005 | WO2005078939A1 Transmission power control device |