Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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09/28/2005 | EP1580882A1 Audio enhancement system and method |
09/28/2005 | EP1580881A2 High-frequency power amplifier and communication apparatus |
09/28/2005 | EP1579370A1 Method of automatically setting the gain of an interrogator receiver within a non-contacting identification system |
09/28/2005 | CN1675833A Ring triggered mute |
09/28/2005 | CN1675832A Variable gain amplifier with improved control characteristics linearity |
09/28/2005 | CN1675827A A power amplifier system |
09/28/2005 | CN1675690A Optical disk system with non-linearly controlled amplifier |
09/28/2005 | CN1674434A A mobile communication terminal apparatus, a variable gain amplifier circuit and a gain control circuit |
09/27/2005 | US6950641 Apparatus, and an associated method, for increasing receiver sensitivity of a direct conversion receiver |
09/27/2005 | US6950636 Power amplifier control driver having over-current protection and linear control |
09/22/2005 | WO2005088842A1 Transmission device and radio communication device |
09/22/2005 | WO2005086801A2 Companion microphone system and method |
09/22/2005 | US20050210529 Coaxial communication active tap device and distribution system |
09/22/2005 | US20050209918 Listening supplement that provides an additional or alternative means of media content delivery of periodical publications for subscribers of the aforementioned periodical publications and a process for establishing the same |
09/22/2005 | US20050209718 Digital audio volume control |
09/22/2005 | US20050208923 High frequency peak detector and applications thereof |
09/22/2005 | US20050208919 Serial bus interface for direct conversion receiver |
09/22/2005 | US20050208916 Direct conversion receiver architecture |
09/22/2005 | US20050208910 Variable-gain low noise amplifier for digital terrestrial applications |
09/22/2005 | US20050208909 High-frequency power amplifier and communication apparatus |
09/22/2005 | US20050208907 Detecting and maintaining linearity in a power amplifier system through envelope power comparisons |
09/22/2005 | US20050207594 Sound signal processing apparatus and sound signal processing method |
09/22/2005 | US20050207583 Audio enhancement system and method |
09/22/2005 | US20050207332 Picture/sound output device with automatic output adjustment function |
09/22/2005 | US20050206456 High frequency power amplifier module and wireless communication apparatus |
09/22/2005 | US20050206455 Method to control the supply power being provided to a power amplifier |
09/22/2005 | US20050206447 Method to prevent saturation in power amplifier control loop |
09/22/2005 | DE19915163B4 Verfahren und Vorrichtung zur digitalen Rahmensynchronisation eines Übertragungssignals Method and apparatus for frame synchronization of a digital transmission signal |
09/22/2005 | DE102004009503A1 High frequency power amplifier control method, for mobile radio terminal, deriving automatic power control voltage from desired power level and value representing difference between antenna directional coupler voltages |
09/21/2005 | EP1578036A1 Wireless communication device |
09/21/2005 | EP1576751A2 Signal distribution system cascadable agc device and method |
09/21/2005 | EP1576728A2 System for regulating the level of an amplified signal in an amplification chain. |
09/21/2005 | EP1576725A2 Thermal feedback for switch mode amplification |
09/21/2005 | CN1672377A Multi-stage automatic gain control for spread-spectrum receivers |
09/21/2005 | CN1672325A Acoustical virtual reality engine and advanced techniques for enhancing delivered sound |
09/21/2005 | CN1671043A High-frequency power amplifier and communication apparatus |
09/21/2005 | CN1220371C Shock sound prevention circuit |
09/21/2005 | CN1220327C Feedforward amplifier and power amplifying method using feedforward amplifier |
09/21/2005 | CN1220064C Distortion detector |
09/20/2005 | US6946981 Transmitter and method thereon |
09/20/2005 | US6946910 Configurable feedback path in an amplitude control system |
09/15/2005 | WO2005086362A1 Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuit |
09/15/2005 | WO2005086360A1 Load insensitive power amplifier |
09/15/2005 | US20050202792 Method for controlling LNA gain state |
09/15/2005 | US20050201570 Engine sound processing system |
09/15/2005 | US20050201565 Apparatus for providing sound effects according to an image and method thereof |
09/15/2005 | US20050200407 High frequency power amplifier and wireless communication module |
09/15/2005 | US20050200406 Gain control methods and systems in an amplifier assembly |
09/15/2005 | DE10236479B4 Mobiltelefon mit Leistungssteuerung Mobile phone with power control |
09/15/2005 | DE102004019353B3 Control system using proximity sensor and evaluation unit for hearing aid enables control functions when user's hand is moved near ear with installed hearing aid |
09/15/2005 | DE102004006957A1 Verfahren und Vorrichtung zum Verstärken eines Empfangssignals Method and apparatus for amplifying a reception signal |
09/14/2005 | EP1575164A2 Sound signal processing apparatus and sound signal processing method |
09/14/2005 | EP1575163A2 Automobile audio system and signal processing method therefor |
09/14/2005 | EP1575162A1 Audio amplifier |
09/14/2005 | EP1575034A1 Input sound processor |
09/14/2005 | EP1575028A2 System for simulating the sound of an engine |
09/14/2005 | EP1574084A2 Nxm crosspoint switch with band translation |
09/14/2005 | EP1573948A2 Digital audio production device |
09/14/2005 | EP1573931A2 Integrated crosspoint switch with band translation |
09/14/2005 | EP1573906A1 Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain and phase |
09/14/2005 | EP1093686B1 Improved exponential current generator and method |
09/14/2005 | CN2726214Y Sound player with volume control module |
09/14/2005 | CN1669251A Method and system for all digital gain control |
09/14/2005 | CN1669214A Start signal output circuit |
09/14/2005 | CN1668124A Method of proceeding gain adjustment for downloadable music file |
09/14/2005 | CN1667702A Input sound processor |
09/14/2005 | CN1219359C Automatic gain control circuit and method of direct sequence spread spectrum receiver |
09/14/2005 | CN1219358C Digital broadcasting receiver |
09/14/2005 | CN1219353C Device and method for controlling volume by PWM pulses |
09/13/2005 | US6943626 Wideband precision fixed-gain amplifier architecture, apparatus, and method |
09/09/2005 | WO2005084016A1 System and method for tv automatice gain control (agc) |
09/09/2005 | WO2005083891A1 Transmitter apparatus and wireless communication apparatus |
09/08/2005 | US20050197092 Analog peak detection circuitry for radio receivers |
09/08/2005 | US20050197077 Method for monitoring an RF power amplifier, and an RF device, a monitoring device, and an MR system corresponding thereto |
09/08/2005 | US20050197076 Radio communication device and control method of amplification circuit thereof |
09/08/2005 | US20050197066 Non-linear distortion compensation circuit for multi-carrier transmission |
09/08/2005 | US20050195996 Companion microphone system and method |
09/08/2005 | US20050195995 Audio mixing using magnitude equalization |
09/08/2005 | US20050195994 Apparatus and method for improving voice clarity |
09/08/2005 | US20050195992 Input sound processor |
09/08/2005 | US20050195984 Sound reproducing method and apparatus |
09/08/2005 | US20050195983 Method of analog math processing for controlled distortion of an electric audio signal and device |
09/08/2005 | US20050195053 Variable capacitor circuit and integrated circuit containing the same |
09/08/2005 | US20050195039 Radio frequency variable gain amplifier with linearity insensitive to gain |
09/08/2005 | US20050195029 Device for detecting the power of a signal and integrated circuit with amplifier and related power detection device |
09/08/2005 | US20050195028 Power amplifier module for wireless communication devices |
09/08/2005 | US20050195027 Programmable gain instrumentation amplifier including a composite amplifier for level shifting and improved signal-to-noise ratio |
09/08/2005 | US20050195026 Sectional power/voltage/current limiter for a multi-phase amplifier |
09/08/2005 | DE102004007635A1 Amplifier for broadband amplifying circuits, e.g. in video transmissions, has programmable amplification and a transistor device with counter-coupling resistors |
09/07/2005 | EP1571884A2 Sound reproducing method and apparatus |
09/07/2005 | EP1570571A2 Gain compensation over temperature and frequency variations in wireless transceivers |
09/07/2005 | EP1570102A2 Method for coating piston rings for internal combustion engines |
09/07/2005 | EP1504527B1 Digital automatic gain control for transceiver devices |
09/07/2005 | EP1299922A4 Successive log video pad power detector and method |
09/07/2005 | EP1040572B1 Low voltage, beta immune variable gain amplifier with high supply voltage rejection |
09/07/2005 | CN1666413A AGC circuit |
09/07/2005 | CN1666410A Semiconductor integrated circuit and semiconductor integrated circuit manufacturing method |
09/07/2005 | CN1665150A Method and apparatus for frequency correction |
09/07/2005 | CN1665128A Multi-level auto-gain control integrated circuit system having gain indication function |
09/07/2005 | CN1665127A Variable capacitor circuit and integrated circuit containing the same |