| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 10/05/2006 | WO2006104481A1 Offset correction circuit for voltage-controlled current source |
| 10/05/2006 | WO2006104075A1 Amplifier apparatus |
| 10/05/2006 | WO2006103889A1 Load driving circuit |
| 10/05/2006 | WO2006054213A3 Apparatus for filtering a reference voltage and mobile phones comprising such apparatus |
| 10/05/2006 | US20060221220 Output-Compensated Buffers with Source-Follower Input Structure and Image Capture Devices Using Same |
| 10/05/2006 | US20060220929 Device for detecting operation of operator on sound control apparatus |
| 10/05/2006 | US20060220759 Contactless ic card system |
| 10/05/2006 | US20060220748 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 |
| 10/05/2006 | US20060220747 Light receiving amplifier circuit and optical pickup device having the same |
| 10/05/2006 | US20060220746 Sensing circuit |
| 10/05/2006 | US20060220745 Amplification circuit and control method of amplification circuit |
| 10/05/2006 | US20060220744 Doherty power amplifier with phase compensation |
| 10/05/2006 | US20060220741 CMOS class AB folded cascode operational amplifier for high-speed applications |
| 10/05/2006 | US20060220740 Apparatus for current measuring and a resistor |
| 10/05/2006 | US20060220738 Wireless transmitter having multiple programmable gain amplifiers (PGAs) with tuned impedance to provide substantially linear magnitude and phase responses |
| 10/05/2006 | US20060220737 High q monolithic inductors for use in differential circuits |
| 10/05/2006 | US20060220735 Gate driver for Class D audio amplifier with adaptive dV/dt control |
| 10/05/2006 | DE19937990B4 Integrierte Halbleiterschaltung für ein Elektret-Mikrofon A semiconductor integrated circuit for an electret microphone |
| 10/04/2006 | EP1708394A2 Device for detecting operation of a rotary knob in an audio mixing console |
| 10/04/2006 | EP1708364A1 Photo detecting circuit and noise elimination method |
| 10/04/2006 | EP1658674A4 Power distribution and biasing in rf switch-mode power amplifiers |
| 10/04/2006 | EP1649596A4 Variable gain amplifier system |
| 10/04/2006 | EP1576724A4 Rf power amplifier employing bias circuit topologies for minimization of rf amplifier memory effects |
| 10/04/2006 | CN2824488Y Integrated apparatus of power amplifier and loudspeaker |
| 10/04/2006 | CN2824427Y 数字功率放大电路 The digital power amplifier |
| 10/04/2006 | CN1842227A Device and method for detecting operation of operator on sound control apparatus |
| 10/04/2006 | CN1841923A Low noise amplifier and differential amplifier with variable gain mode |
| 10/03/2006 | US7116954 Tunable bandpass filter and method thereof |
| 10/03/2006 | US7116949 Semiconductor integrated circuit device and wireless communication system |
| 10/03/2006 | US7116947 Transmitter |
| 10/03/2006 | US7116594 Sense amplifier circuits and high speed latch circuits using gated diodes |
| 10/03/2006 | US7116539 Fast CMOS matched impedance DC write current driver for preamplifiers |
| 10/03/2006 | US7116253 Radio frequency digital-to-analog converter |
| 10/03/2006 | US7116175 Semiconductor device |
| 10/03/2006 | US7116173 High-frequency power amplifier circuit and electronic part for communication |
| 10/03/2006 | US7116172 High-swing folded cascode having a novel gain-boost amplifier |
| 10/03/2006 | US7116171 Operational amplifier and driver circuit using the same |
| 10/03/2006 | US7116170 Differential amplifier and calculation amplifier |
| 10/03/2006 | US7116169 Driver apparatus and method of operation thereof |
| 10/03/2006 | US7116168 Power multiplier system and method |
| 10/03/2006 | US7116166 High fidelity, high power switched amplifier |
| 10/03/2006 | US7116165 Front stage amplifier with different modes |
| 10/03/2006 | US7116163 Buffer circuit |
| 10/03/2006 | US7116162 Reduced output topology for multi-reference switching amplifiers |
| 10/03/2006 | US7116161 Differential amplifier circuit and drive circuit of liquid crystal display unit using the same |
| 10/03/2006 | US7116136 Gate driver with level shift between static wells with no power supply |
| 10/03/2006 | US7116132 Current feedback amplifiers with separate common-mode and differential-mode inputs |
| 09/28/2006 | WO2006102466A2 High power doherty amplifier using multi-stage modules |
| 09/28/2006 | WO2006101094A1 Transmitting apparatus, communication device, and mobile wireless unit |
| 09/28/2006 | WO2006099993A1 Amplifier circuit |
| 09/28/2006 | WO2006099899A1 Symmetrical optical receiver |
| 09/28/2006 | US20060217099 Activation signal output circuit |
| 09/28/2006 | US20060214733 RF power amplifier |
| 09/28/2006 | US20060214732 High power Doherty amplifier using multi-stage modules |
| 09/28/2006 | US20060214730 Transmission amplifier |
| 09/27/2006 | EP1704452A1 Transistor arrangement with temperature compensation and method for temperature compensation |
| 09/27/2006 | EP1654672A4 Device and method for signal processing |
| 09/27/2006 | CN1839541A Low voltage circuit for interfacing with high voltage analog signals |
| 09/27/2006 | CN1838530A 高频功率放大器电路 High-frequency power amplifier circuit |
| 09/27/2006 | CN1838527A Power amplifier |
| 09/27/2006 | CN1838526A Superspeed, super linear power amplifier |
| 09/27/2006 | CN1838499A Remote control circuit structure comprising marks to distinguish multiple electrical appliances and electricity-proof wall with operational amplifier |
| 09/27/2006 | CN1277351C Class D amplifier |
| 09/26/2006 | US7113056 Radial power divider/combiner |
| 09/26/2006 | US7113054 Arrangement and method impedance matching |
| 09/26/2006 | US7113045 Power amplifier input structure having a differential output |
| 09/26/2006 | US7113044 Precision current mirror and method for voltage to current conversion in low voltage applications |
| 09/26/2006 | US7113042 Low noise op amp |
| 09/26/2006 | US7113041 Operational amplifier |
| 09/26/2006 | US7113040 Differential amplifier |
| 09/26/2006 | US7113039 Gain-boosted opamp with capacitor bridge connection |
| 09/26/2006 | US7113038 Power amplifier |
| 09/26/2006 | US7113034 High frequency power amplifier and wireless communication module |
| 09/26/2006 | US7113032 Low distortion power amplifier and method of controlling a multi-channel power amplifier |
| 09/26/2006 | US7113031 Audio amplifier circuit with suppression of unwanted noise when powered on from standby |
| 09/26/2006 | US7113030 Class-D power amplifier capable of eliminating excessive response phenomenon when returning to a steady state from an abnormal state and an amplification method thereof |
| 09/26/2006 | US7113005 Current mirror circuit |
| 09/26/2006 | US7113004 Sense amplifier with offset cancellation and charge-share limited swing drivers |
| 09/26/2006 | US7112948 Voltage source circuit with selectable temperature independent and temperature dependent voltage outputs |
| 09/21/2006 | US20060208800 Biasing stage for an amplifier |
| 09/21/2006 | US20060208799 Power amplifier circuitry having inductive networks |
| 09/21/2006 | US20060208798 Compensation of nonlinearity introduced by dead time in switching output stage |
| 09/21/2006 | US20060208797 Integrated amplifier arrangement |
| 09/21/2006 | US20060208794 Class D amplifier |
| 09/21/2006 | US20060208793 Class D amplifier |
| 09/21/2006 | US20060208792 Amplification system capable of reducing DC offset |
| 09/21/2006 | DE10297355B4 Breitbandhochfrequenz-Signalverstärker Broadband high-frequency signal amplifier |
| 09/21/2006 | DE102005010643A1 Stromsparende differenzielle Breitbandtreiberschaltung Electric saving differential wideband driver circuit |
| 09/20/2006 | EP1703635A1 Class D amplifier |
| 09/20/2006 | EP1703634A1 Bias circuit |
| 09/20/2006 | EP1702405A2 Single chip power amplifier and envelope modulator |
| 09/20/2006 | EP1649595A4 Modulated triangular wave amplifier |
| 09/20/2006 | EP1614216B1 Amplifier arrangement and distributed audio system |
| 09/20/2006 | EP1586162A4 High efficiency power amplification apparatus with multiple power mode |
| 09/20/2006 | EP1581994A4 Power amplifier circuit and method using bandlimited signal component estimates |
| 09/20/2006 | CN2819645Y Low double-carrier power amplifier of WCDMA base station system |
| 09/20/2006 | CN2819644Y 40W single-carrier power amplifier of CDMA 450M system base station |
| 09/20/2006 | CN1835396A 偏置电路 Bias circuit |
| 09/20/2006 | CN1835395A Class-D amplifier |
| 09/20/2006 | CN1835394A Class-D amplifier |