Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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08/08/2007 | CN101015119A System and method for current-mode amplitude modulation |
08/08/2007 | CN101013911A Control circuit of radio-frequency variable gain amplifier and gain control method |
08/08/2007 | CN101013795A Analog external cavity laser |
08/07/2007 | US7254828 Multiple input data receiver for cable television systems |
08/07/2007 | US7254377 Parallel operation system of transmission amplifier |
08/07/2007 | US7254244 Pop and click reduction using DAC power up and power down processing |
08/07/2007 | US7254169 Method and apparatus for determining a loss of signal condition |
08/07/2007 | US7254164 Method for transconductance linearization for DC-coupled applications |
08/07/2007 | US7253689 Low distortion amplifier |
08/07/2007 | US7253688 Input matching circuit for multiband low noise amplifier |
08/07/2007 | US7253687 Clamping circuit for operational amplifiers |
08/07/2007 | US7253682 Antenna amplifier |
08/07/2007 | US7253679 Operational amplifier and method for canceling offset voltage of operational amplifier |
08/07/2007 | CA2576778A1 Self-calibrating multi-port circuit and method |
08/07/2007 | CA2302256C Predistortion linearizer circuit |
08/02/2007 | WO2007087630A2 Notch filter for ripple reduction in chopper stabilized amplifiers |
08/02/2007 | WO2007087586A2 Systems and methods for over-current protection |
08/02/2007 | WO2007086570A1 Distortion compensation circuit |
08/02/2007 | WO2007085788A1 Amplifier control |
08/02/2007 | WO2007085383A1 Signal conditioning circuit |
08/02/2007 | US20070179755 Methods and systems for derivation of missing data objects from test data |
08/02/2007 | US20070179754 Wireless meter for real time measurements and method therefor |
08/02/2007 | US20070179753 Curve fitting for signal estimation, prediction, and parametrization |
08/02/2007 | US20070176686 Ultra broad-band low noise amplifier utilizing dual feedback technique |
08/02/2007 | US20070176678 Method And Apparatus For Controlling Adaptive Circuits |
08/02/2007 | US20070176677 Switched distributed power amplifier |
08/02/2007 | US20070176675 Differential amplifier and digital-to-analog converter |
08/02/2007 | US20070176634 Transistor arrangement, integrated circuit and method for operating field effect transistors |
08/01/2007 | EP1814221A2 A variable power adaptice transmitter |
08/01/2007 | EP1814220A1 A variable power adaptive transmitter |
08/01/2007 | EP1813069A2 Systems and methods for vector power amplification |
08/01/2007 | EP1756941A4 Multi-band low noise amplifier system |
08/01/2007 | EP1658673A4 Low noise, electric field sensor |
08/01/2007 | EP1444775B1 Method and apparatus to manage address translation for secure connections |
08/01/2007 | CN1330088C An adaptive linearization technique for communication building block |
08/01/2007 | CN101010873A Audio signal amplifying circuit and electronic device using the same |
07/31/2007 | US7251464 Method and apparatus for predistortion training in an amplifier utilizing predistortion |
07/31/2007 | US7251462 Modulation circuit device, modulation method and radio communication device |
07/31/2007 | US7251293 Digital pre-distortion for the linearization of power amplifiers with asymmetrical characteristics |
07/31/2007 | US7251290 Adaptive controller for linearization of transmitter |
07/31/2007 | US7250820 Power distribution and biasing in RF switch-mode power amplifiers |
07/31/2007 | US7250816 Method and apparatus for combining multiple signals for high efficiency applications |
07/31/2007 | US7250815 Amplifier distortion management apparatus, systems, and methods |
07/31/2007 | US7250814 Variable gain amplifier |
07/31/2007 | US7250813 Split amplifier architecture for cross talk cancellation |
07/26/2007 | WO2007084033A1 Linc out-phasing amplifier system |
07/26/2007 | WO2007083281A1 Cartesian modulation system via multi-level pulse width modulation |
07/26/2007 | WO2007082388A1 Power supply for limited power sources and audio amplifier using power supply |
07/26/2007 | US20070173213 Cartesian loop transmitter and method of adjusting an output level of such transmitter |
07/26/2007 | US20070170993 Differential amplifier having an improved slew rate |
07/26/2007 | US20070170991 Variable gain circuit |
07/26/2007 | US20070170982 Circuit utilizing op-sharing technique and related method thereof |
07/26/2007 | US20070170981 Notch filter for ripple reduction in chopper stabilized amplifiers |
07/26/2007 | CA2635629A1 Power supply for limited power sources and audio amplifier using power supply |
07/25/2007 | EP1811675A1 Adapter device, mainly for a power amplifier |
07/25/2007 | EP1811658A1 Power amplifier bias protection for depletion mode transistor |
07/25/2007 | EP1811657A2 Nested transimpedance amplifier |
07/25/2007 | EP1811656A2 Nested transimpedance amplifier |
07/25/2007 | EP1811655A1 A power amplifier distortion compensation apparatus and method thereof |
07/25/2007 | EP1811654A1 Amplifier feedback switch configuration with improved PSRR |
07/25/2007 | EP1811653A1 Amplifier input switch configuration with improved PSRR |
07/25/2007 | EP1811652A2 Nested transimpedance amplifier |
07/25/2007 | EP1811651A1 Device and method for controlling a voltage control signal |
07/25/2007 | EP1810433A2 System and method for forward path gain control in a digital predistortion linearized transmitter |
07/25/2007 | EP1810398A1 Method and apparatus for maintaining constant linearity for a power amplifier over varying load conditions |
07/25/2007 | EP1755215A9 Amplifier circuit improved in linearity and frequency band |
07/25/2007 | EP1440230B1 Device for protecting an electronic circuit |
07/25/2007 | CN1328849C Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method |
07/25/2007 | CN101005268A Class D amplifier with start-up click noise elemination |
07/25/2007 | CN101005237A Current sense amplifier for voltage converter |
07/24/2007 | US7248973 Metrics for characterizing chemical arrays based on analysis of variance (ANOVA) factors |
07/24/2007 | US7248846 Feedforward amplifier and radio communication apparatus with the amplifier |
07/24/2007 | US7248656 Digital convertible radio SNR optimization |
07/24/2007 | US7248653 Low power and high linearity receivers with reactively biased front ends |
07/24/2007 | US7248644 Circuit and method for compensating for nonliner distortion of power amplifier |
07/24/2007 | US7248643 Distortion compensator |
07/24/2007 | US7248636 Systems and methods for adjusting an output driver |
07/24/2007 | US7248120 Stacked transistor method and apparatus |
07/24/2007 | US7248119 Broadband amplifier with improved noise figure and distortion characteristics |
07/24/2007 | US7248118 Radio frequency power amplifier module |
07/24/2007 | US7248113 Methods and systems for stabilizing an amplifier |
07/24/2007 | US7248112 Hybrid distortion compensation method and hybrid distortion compensation device |
07/24/2007 | US7248106 Sampling signal amplifier |
07/24/2007 | US7248105 Method and circuit for input offset correction in an amplifier circuit |
07/24/2007 | US7248104 Operational amplifier |
07/24/2007 | CA2233692C Linearized digital automatic gain control |
07/19/2007 | WO2007080741A1 Amplifying device |
07/19/2007 | WO2007080528A1 Single-ended amplifier |
07/19/2007 | US20070165745 Adaptation of iq-error compensation |
07/19/2007 | US20070164826 Gain controllable low noise amplifier and wireless communication receiver having the same |
07/19/2007 | US20070164824 Amplifier |
07/19/2007 | US20070164821 Load-invariant amplifier |
07/19/2007 | US20070164819 Amplifier |
07/19/2007 | US20070164818 High efficiency amplifier |
07/19/2007 | US20070164817 Ultrasound imaging or other use variable input impedance preamplifier |
07/19/2007 | US20070164816 Balanced amplifier |
07/19/2007 | US20070164814 Digital amplifier |
07/19/2007 | DE112005002091T5 Verstärkerschaltung und Verfahren zum Reduzieren des Spannungs- und Stromrauschens Amplifier circuit and method for reducing the voltage and current noise |
07/18/2007 | EP1808960A2 Reduced-size sensor circuit |
07/18/2007 | EP1807929A1 Fet amplifier with adjustable degeneration resistance |