| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 04/25/2006 | US7034611 Multistage common mode feedback for improved linearity line drivers |
| 04/25/2006 | US7034609 Switching circuits |
| 04/25/2006 | US7034608 Correcting DC offsets in a multi-stage amplifier |
| 04/25/2006 | US7034606 VGA-CTF combination cell for 10 Gb/s serial data receivers |
| 04/25/2006 | US7034568 Logic circuit |
| 04/25/2006 | US7034542 Current sensing circuit and method |
| 04/25/2006 | US7034514 Semiconductor integrated circuit using band-gap reference circuit |
| 04/20/2006 | WO2006041085A1 Sample hold circuit, and pipeline ad converter using the circuit |
| 04/20/2006 | WO2006040950A1 Constant-current circuit and system power source using this constant-current circuit |
| 04/20/2006 | WO2006040935A1 Operational amplifier |
| 04/20/2006 | WO2006002134A3 Transconductance amplifier |
| 04/20/2006 | US20060082416 Method and system for simplifying common mode feedback circuitry in multi-stage operational amplifiers |
| 04/20/2006 | US20060082415 Active load with adjustable common-mode level |
| 04/20/2006 | US20060082414 Method for high efficiency audio amplifier |
| 04/20/2006 | DE102005033646A1 Vakuumröhren-Leistungsverstärker umschaltbar zwischen Gegentakt- und Eintaktkonfigurationen Vacuum tube power amplifier can be switched between differential and Eintaktkonfigurationen |
| 04/20/2006 | DE10031522B4 Frequenzkompensierte Verstärkeranordnung und Verfahren zum Betrieb einer frequenzkompensierten Verstärkeranordnung Frequency compensated amplifier arrangement and method for operating a frequency compensated amplifier arrangement |
| 04/19/2006 | EP1647092A1 Operational amplifier with constant offset and apparatus comprising such an operational amplifier |
| 04/19/2006 | EP1647091A2 Low-consumption voltage amplifier |
| 04/19/2006 | EP1647090A2 A low-power wide dynamic range envelope detector system and method |
| 04/19/2006 | EP1354399B1 Differential amplifier with large input common mode signal range |
| 04/19/2006 | EP1316152B1 Method and apparatus for use in switched capacitor systems |
| 04/19/2006 | EP1177619B1 Signal treating circuit with a class a/b output stage connectable to a source of multiple supply voltages |
| 04/19/2006 | EP1010240B1 Class d amplifier with switching control |
| 04/19/2006 | CN2774004Y Two-directional amplifier with microwave receive and transmit |
| 04/19/2006 | CN2773971Y Charger with audio-frequency amplification |
| 04/19/2006 | CN1762097A Matching circuit |
| 04/19/2006 | CN1762094A Low distortsion class-d amplifier using carrier reference signal symmetry modulation |
| 04/19/2006 | CN1252915C Current dynamic biasing of transmitter and method |
| 04/19/2006 | CN1252914C Differential circuit, amplifying circuit, driving circuit and display device using them |
| 04/19/2006 | CN1252913C Power amplifier circuit |
| 04/19/2006 | CN1252912C Low-Voltage high-linearity radio-frequency amplifier for on-chip impedance match |
| 04/19/2006 | CN1252480C Amplifier circuit for low voltage current detection |
| 04/18/2006 | US7032189 Configurable amplifier array incorporating programmable EHF transmission lines |
| 04/18/2006 | US7031684 Variable gain amplifier device |
| 04/18/2006 | US7031457 Programmable peak detector for use with zero-overhead Class G line drivers |
| 04/18/2006 | US7031356 Temperature controller in optical communication device and method for same |
| 04/18/2006 | US7031236 Optical disk pickup using current mode signal exchanges and systems and methods using the same |
| 04/18/2006 | US7030865 Operational amplifier circuit, driving circuit and driving method |
| 04/18/2006 | US7030715 High-frequency semiconductor device |
| 04/18/2006 | US7030714 Method and apparatus to match output impedance of combined outphasing power amplifiers |
| 04/18/2006 | US7030703 Circuit arrangement comprising cascade field effect transistors |
| 04/18/2006 | US7030702 Optical receiver with wide dynamic range transimpedance amplifier |
| 04/18/2006 | US7030701 Transimpedance amplification apparatus with source follower structure |
| 04/18/2006 | US7030700 Voltage level detector for power amplifier protection control |
| 04/18/2006 | US7030699 Amplifier |
| 04/18/2006 | US7030698 High-frequency power amplifier |
| 04/18/2006 | US7030697 Method and apparatus for providing high common-mode rejection ratio in a single-ended CMOS operational transconductance amplifier |
| 04/18/2006 | US7030696 Differential amplifier and semiconductor device |
| 04/18/2006 | US7030695 Low threshold voltage circuit employing a high threshold voltage output stage |
| 04/18/2006 | US7030694 Switched mode power amplifier |
| 04/18/2006 | US7030691 Power amplifier |
| 04/18/2006 | US7030690 Operational amplifier with selectable performance characteristics |
| 04/18/2006 | US7030689 Isolated DC-to-DC converter |
| 04/18/2006 | US7030686 Constant voltage circuit with phase compensation |
| 04/18/2006 | US7030594 Pulse width modulator and loading system thereof |
| 04/18/2006 | US7030360 Photoreceptor |
| 04/18/2006 | US7029296 Cover assembly for vacuum electron device |
| 04/13/2006 | WO2006039649A2 Unified analog input front end apparatus and method |
| 04/13/2006 | WO2006039510A2 Continuous-time digital amplifier |
| 04/13/2006 | WO2006038785A1 Apparatus and method for direct quadrature power amplifier modulation |
| 04/13/2006 | WO2005027297A3 Hybrid switched mode/linear power amplifier power supply for use in polar transmitter |
| 04/13/2006 | WO2005022740A3 Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
| 04/13/2006 | US20060078269 Video optical receiver |
| 04/13/2006 | US20060077760 Sonar transmitter |
| 04/13/2006 | US20060077008 Bipolar rail-to-rail output stage |
| 04/13/2006 | US20060077007 Three state class d amplifier |
| 04/13/2006 | US20060077005 Current controlled pulse width modulation circuit and class-D amplifier comprising the same |
| 04/13/2006 | US20060077004 Low-distortion differential circuit |
| 04/13/2006 | US20060076868 High efficiency emitter for incandescent light sources |
| 04/13/2006 | US20060076620 Semiconductor device |
| 04/13/2006 | DE10113714B4 Eingabe/Ausgabe-Abtastverstärkerschaltung für ein Halbleiterspeicherbauelement Input / output sense amplifier for a semiconductor memory device |
| 04/12/2006 | EP1646153A1 Activation signal output circuit |
| 04/12/2006 | EP1646143A1 Amplifier designed to generate a rectangular voltage signal with soft switching on a capacitive load |
| 04/12/2006 | EP1645040A2 Variable attenuation system having continuous input steering |
| 04/12/2006 | EP1532730A4 Sequential dc offset correction for amplifier chain |
| 04/12/2006 | EP1325555A4 Configurable power amplifier and bias control |
| 04/12/2006 | CN1759633A Transducer assembly with modifiable buffer circuit and method for adjusting thereof |
| 04/12/2006 | CN1759534A Three state class D amplifier |
| 04/12/2006 | CN1759533A Switchable gain amplifier |
| 04/12/2006 | CN1758569A 视频光接收机 Video Optical Receiver |
| 04/12/2006 | CN1758545A 通信终端 Communication terminal |
| 04/12/2006 | CN1758534A Integrated transfer resistance amplifier with auto-gain control |
| 04/12/2006 | CN1758531A Amplifier having switchable negative feedback |
| 04/12/2006 | CN1251401C Output control device of pulse width modulated inverter |
| 04/12/2006 | CN1251400C Operation amplifier with deviation offset function |
| 04/11/2006 | US7027027 Differential amplifier and semiconductor integrated circuit for LCD drive |
| 04/11/2006 | US7026877 Optical input preamplifier |
| 04/11/2006 | US7026876 High linearity smart HBT power amplifiers for CDMA/WCDMA application |
| 04/11/2006 | US7026875 System and method for a programmable gain amplifier |
| 04/11/2006 | US7026874 Methods and apparatus for improving the operation of a variable gain amplifier (VGA) |
| 04/11/2006 | US7026869 Broadband amplifier having offset microstrip section in a housing module |
| 04/11/2006 | US7026868 Variable supply amplifier system |
| 04/11/2006 | US7026867 Floating input amplifier for capacitively coupled communication |
| 04/11/2006 | US7026866 DC offset self-calibration system for a switching amplifier |
| 04/11/2006 | US7026865 Analogue amplifier with multiplexing capability |
| 04/11/2006 | US7026853 Automatic integration reset offset subtraction circuit |
| 04/11/2006 | US7026845 Electronic circuit for converting a current signal to a voltage signal |
| 04/11/2006 | US7024864 Bipolar current source based on a unipolar power supply |
| 04/06/2006 | WO2006036060A1 Gate bias generator |
| 04/06/2006 | WO2006035898A1 Constant voltage generating circuit |