| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 07/21/2005 | US20050156666 Low-voltage differential amplifier |
| 07/21/2005 | US20050156665 Class-D amplifier |
| 07/21/2005 | US20050156664 Class-D line driver arrangement |
| 07/21/2005 | US20050156661 Filter apparatus including differential slave gm-C filter with frequency characteristics automatically tuned by master circuit |
| 07/21/2005 | US20050156194 Heterojunction bipolar transistor and method for manufacturing the same, and power amplifier using the same |
| 07/21/2005 | DE10360347A1 Symmetrischer Gegentaktverstärker Symmetrical push-pull amplifier |
| 07/21/2005 | DE102004057793A1 Digitale speichergestützte Vorverzerrungstechnik Digital memory-based predistortion technique |
| 07/21/2005 | DE102004057274A1 Stromverstärkeschaltung mit stabilisierter Ausgangsspannung und Flüssigkristallanzeige, die diese beinhaltet Power amplifying circuit with stabilized output voltage and liquid crystal display including this |
| 07/21/2005 | DE102004057273A1 Spannungserzeugungsschaltung Voltage generating circuit |
| 07/21/2005 | CA2552636A1 Signal repeater system |
| 07/20/2005 | EP1554975A1 Synthesizing a reference value in an electrocardial waveform |
| 07/20/2005 | EP1554799A2 High frequency amplifier in an integrated circuit |
| 07/20/2005 | CN1643785A Amplifier and frequency converter |
| 07/20/2005 | CN1643784A Modulator- amplifier |
| 07/20/2005 | CN1643780A Transistor assembly |
| 07/20/2005 | CN1643685A Power amplifier device |
| 07/20/2005 | CN1643354A Semiconductor device, temperature sensor, and electronic apparatus comprising it |
| 07/20/2005 | CN1642001A Class-D amplifier |
| 07/20/2005 | CN1642000A Amplifier circuit |
| 07/20/2005 | CN1641999A Amplifier circuit for capacitive transducers |
| 07/20/2005 | CN1641998A Switchable gain amplifier |
| 07/20/2005 | CN1641984A Precision margining circuitry |
| 07/20/2005 | CN1212045C High eficiency audio frequency transmission channel |
| 07/20/2005 | CN1211938C Front end and high frequency receiver having quadrature low noise amplifier |
| 07/20/2005 | CN1211920C Electrical apparatus of shielding plate and emitting device for filtering electric signal at two side of shielding plate |
| 07/20/2005 | CN1211918C Broadcast transmission system with sample and correction arrangement for correcting distortion |
| 07/19/2005 | US6919870 Driving circuit |
| 07/19/2005 | US6919771 Digital amplifier |
| 07/19/2005 | US6919768 Balanced amplifier and filter using the same |
| 07/19/2005 | US6919767 Circuit arrangement for low-noise fully differential amplification |
| 07/19/2005 | US6919766 Operational amplifier circuit |
| 07/19/2005 | US6919763 Transconductance amplifier for inductive loads and method for driving inductive loads |
| 07/19/2005 | US6919762 High frequency power amplifier electric parts and radio telecommunication system |
| 07/19/2005 | US6919760 Linear-in-dB variable gain amplifier |
| 07/19/2005 | US6919716 Precision avalanche photodiode current monitor |
| 07/14/2005 | WO2005064877A1 Digital rf modulator comprising a phase or frequency return path |
| 07/14/2005 | WO2005064789A1 Apparatus, methods and articles of manufacture for a dual mode amplifier |
| 07/14/2005 | WO2005048457A3 Delta-sigma digital-to-analog converter assembly |
| 07/14/2005 | WO2005041414A3 Multi-band voltage controlled oscillator |
| 07/14/2005 | US20050152561 Modulator - amplifier |
| 07/14/2005 | US20050152471 Transmitting device |
| 07/14/2005 | US20050151591 RF power amplifier circuitry and method |
| 07/14/2005 | US20050151589 Amplifier circuit for capacitive transducers |
| 07/14/2005 | US20050151588 Rejection circuitry for variable-gain amplifiers and continuous-time filters |
| 07/14/2005 | US20050151587 Differential amplifier and calculation amplifier |
| 07/14/2005 | US20050151586 Power amplifier |
| 07/14/2005 | US20050151585 Gate control circuit with soft start/stop function |
| 07/14/2005 | US20050151584 Power amplification circuits |
| 07/14/2005 | US20050151577 Method and apparatus for extending the size of a transistor beyond one integrated circuit |
| 07/14/2005 | US20050151574 High voltage output level shifter |
| 07/14/2005 | US20050151569 Output circuit and operational amplifier |
| 07/14/2005 | US20050151568 Gate driver with level shift between static wells with no power supply |
| 07/14/2005 | US20050150687 Perforating system and method |
| 07/14/2005 | DE19919945B4 Kopfleseverstärkerschaltung Head read amplifier circuit |
| 07/14/2005 | DE102004002854B3 Amplifier circuit, especially for amplifying voltage produced by photodiode, contains input stage with level-dependent operation, operational amplifier, potential divider, impedance and transistor |
| 07/13/2005 | EP1553696A1 Amplifier circuit for capacitive transducers |
| 07/13/2005 | EP1552687A1 Automatically setting an operative state of a wideband amplifier |
| 07/13/2005 | CN1639979A 电荷泵 Charge Pump |
| 07/13/2005 | CN1639968A Electronic component for amplifying high frequency power and radio communication system |
| 07/13/2005 | CN1639967A Front stage amplifier with different modes |
| 07/13/2005 | CN1638292A Transmitting device |
| 07/13/2005 | CN1638281A Semiconductor circuit |
| 07/13/2005 | CN1638280A Gate driver with level shift between static wells with no power supply |
| 07/13/2005 | CN1638266A Volume control in class D amplifier using variable supply voltage |
| 07/13/2005 | CN1638101A Inductor element containing circuit board and power amplifier module |
| 07/13/2005 | CN1637817A Image display apparatus and inspection method thereof |
| 07/13/2005 | CN1637678A Low voltage cmos bandgap reference |
| 07/13/2005 | CN1210874C System for closed loop power control using linear or non-linear power amplifier |
| 07/13/2005 | CN1210865C Differential amplifier circuit |
| 07/13/2005 | CN1210864C High-gain complementary metal oxide operation amplifier |
| 07/13/2005 | CN1210797C Power transistor module, power amplifier and fabrication method thereof |
| 07/13/2005 | CN1210796C Power transistor module, power amplifier and method in fabrication thereof |
| 07/13/2005 | CN1210636C Temp. characteristic compensation device |
| 07/12/2005 | US6917823 Cellular telephone |
| 07/12/2005 | US6917567 Coil driving system, information storage apparatus, and driving method |
| 07/12/2005 | US6917322 I/V converter circuit and D/A converter |
| 07/12/2005 | US6917321 Method and apparatus for use in switched capacitor systems |
| 07/12/2005 | US6917245 Absolute power detector |
| 07/12/2005 | US6917244 Power control for a switching mode power amplifier |
| 07/12/2005 | US6917243 Integrated power amplifier circuit |
| 07/12/2005 | US6917242 Power amplifier |
| 07/12/2005 | US6917235 Low voltage circuit for interfacing with high voltage analog signals |
| 07/12/2005 | US6917231 Pulse width modulation circuit and illuminating device incorporating same |
| 07/12/2005 | US6917084 Interdigitated layout methodology for amplifier and H-bridge output stages |
| 07/07/2005 | WO2005062563A1 Fractional-n sigma-delta modulator comprising an adaptive compensation filter that compensates for the undesired effects of the phase locked loop and methods thereof |
| 07/07/2005 | WO2005062463A1 Biased darlington transistor pair, method, and system |
| 07/07/2005 | WO2005062061A1 A broad-bandwidth low noise integrator circuit |
| 07/07/2005 | WO2005060672A2 Gate control circuit with soft start/stop function |
| 07/07/2005 | WO2005060489A2 Linearized trans-impedance amplifier |
| 07/07/2005 | WO2005060453A2 Slotted planar power conductor |
| 07/07/2005 | WO2005006392A3 Low voltage circuit for interfacing with high voltage analog signals |
| 07/07/2005 | US20050149151 Switched resonant ultrasonic power amplifier system |
| 07/07/2005 | US20050148308 Amplification apparatus, systems, and methods |
| 07/07/2005 | US20050148307 Direct outphasing modulator |
| 07/07/2005 | US20050146389 Split cascode line amplifier for current-mode signal transmission |
| 07/07/2005 | US20050146386 Method and apparatus for effecting high-frequency amplification or oscillation |
| 07/07/2005 | US20050146382 Differential amplifier with improved frequency characteristic |
| 07/07/2005 | US20050146381 Balanced amplifier and filter using the same |
| 07/07/2005 | US20050146379 High frequency power amplifier circuit |
| 07/07/2005 | US20050146370 Level shifter |