Patents
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
08/2006
08/23/2006EP0754376B1 Apparatus and method for reducing errors in data caused by noise through the use of blanking
08/23/2006CN1823522A Apparatus and method for providing an agc function using multiple feedback sources
08/23/2006CN1823470A Radio transmitter with accurate power control
08/23/2006CN1822496A Method for increasing portable device horn playing volume
08/22/2006US7095988 Apparatus for linear transmitter with improved loop gain stabilization
08/22/2006US7095860 Audio dynamic control effects synthesizer with or without analyzer
08/22/2006CA2404824C Dynamic bias for rf power amplifiers
08/17/2006WO2006086196A2 Method and system for detecting a predetermined sound event
08/17/2006WO2005060112A3 Method and architecture for dual-mode linear and saturated power amplifier operation
08/17/2006WO2005033870A3 Method for creating and using text objects as control devices
08/17/2006WO2004023645A3 Thermal feedback for switch mode amplification
08/17/2006US20060183451 Method and system for continuously compensating for phase variations introduced into a communication signal by automatic gain control adjustments
08/17/2006US20060183449 Gain variable voltage/current conversion circuit and filter circuit using the same
08/17/2006US20060182287 Audio monitoring system
08/17/2006US20060182186 Volume control device for digital signals
08/17/2006US20060181649 System and method for TV automatic gain control (AGC)
08/17/2006US20060181352 Radio frequency excitation arrangement
08/17/2006US20060181351 Power control circuit for accurate control of power amplifier output power
08/16/2006EP1691489A1 Automatic gain control device
08/16/2006CN1820413A Circuit for varying gain of preamplifier
08/16/2006CN1819452A Method and device for adjusting to adapt speech inputting distance
08/16/2006CN1819451A Method for protecting hearing by adjusting volume based on medium player
08/16/2006CN1819450A Output volume improving device and method for loudhailer of mobile communication terminal
08/16/2006CN1270493C Apparatus and method for optimizing the level of RF signals
08/15/2006US7092744 Hands-free microphone mounting
08/15/2006US7092706 Apparatus and method for signal strength compensation of highly time-variant mobile radio channels and reception unit for mobile radio transmission
08/15/2006US7092686 Automatic transmit power control loop
08/15/2006US7092540 Automation of signal processing apparatus
08/15/2006US7092537 Digital self-adapting graphic equalizer and method
08/15/2006US7092533 BTL amplifier apparatus
08/15/2006US7092532 Adaptive feedback canceller
08/15/2006US7092514 Audibility enhancement
08/15/2006US7091778 Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission
08/15/2006US7091777 Controller for an RF power amplifier
08/10/2006WO2006083403A2 Closed loop power control with high dynamic range
08/10/2006WO2006020185A3 Method for riaa correction of audio signal with use of transformer and capacitor
08/10/2006WO2005101678A3 Method and apparatus for dynamically adjusting a transmitter's impedance and implementing a hybrid power amplifier therein which selectively connects linear and switch-mode power amplifiers in series
08/10/2006WO2005027067A3 Method and system for providing an activation signal based on a received rf signal
08/10/2006US20060178876 Speech signal compression device speech signal compression method and program
08/10/2006US20060178121 Method and a device for adjusting power amplifier properties
08/10/2006US20060177074 Early reflection reproduction apparatus and method of sound field effect reproduction
08/10/2006US20060177071 Method and system for detecting a predetermined sound event such as the sound of breaking glass
08/10/2006US20060176115 Operational amplifier circuit
08/10/2006US20060176112 Variable gain amplifying apparatus and wireless communication apparatus
08/10/2006DE19716878B4 AGC-Spannungskorrekturschaltung AGC voltage correction circuit
08/10/2006DE10244167B4 Verstärkungsvorrichtung Amplifying device
08/10/2006DE10056877B4 Empfängerempfindlichkeit Receiver sensitivity
08/09/2006EP1689077A1 Automatic gain control apparatus and method in an orthogonal frequency division multiple access system
08/09/2006EP1687895A1 Programmable automatic gain control according to transmission protocols
08/09/2006EP1687812A1 System and method for audio signal processing
08/09/2006EP1570102B1 Method for coating piston rings for internal combustion engines
08/09/2006EP1402632B1 Optimisation of the operating point of transmitter power amplifiers in mobile stations
08/09/2006EP1029397B1 Reconfigurable radio system architecture
08/09/2006EP0901721B1 Device and method for radio transmitters
08/09/2006CN2805253Y Device for automatically regulating sound volume of mobile telephone set
08/09/2006CN1816994A Method, apparatus and system for use in determining pilot-to-data power ratio in wireless communication
08/09/2006CN1815881A Over-load regulating apparatus for audio-frequency amplifier and method
08/09/2006CN1815880A Method and apparatus for automatically controlling audio volume
08/09/2006CN1815879A Amplifier control device of mobile communication terminal
08/09/2006CN1269107C Speech correction apparatus
08/08/2006US7088961 Circuitry to establish a wireless communication link
08/08/2006US7088835 Wavetable audio synthesizer with left offset, right offset and effects volume control
08/08/2006US7088834 Audio apparatus, audio volume control method in audio apparatus, and computer apparatus
08/08/2006US7088794 Automatic gain control for digitized RF signal processing
08/08/2006US7088187 Method and apparatus for an LNA with high linearity and improved gain control
08/08/2006US7088180 Programmable gain current amplifier
08/03/2006WO2006079969A1 Receiver having a gain-controllable input stage
08/03/2006WO2005067187A8 Transmitter and method for scrambled bit transmission
08/03/2006US20060170828 Integrated circuit for a mobile television receiver
08/03/2006US20060170501 Gain stage control method and related control circuit
08/03/2006US20060170500 Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier
08/03/2006US20060170499 Closed loop power control with high dynamic range
08/03/2006US20060170493 Method for setting an output voltage of a receiving circuit of a receiving head of a rail contact and rail contact system
08/03/2006US20060170492 Dual-band power amplifier
08/03/2006DE19703228B4 Verfahren zur Verstärkung von Eingangssignalen eines Hörgerätes sowie Schaltung zur Durchführung des Verfahrens A method of amplifying input signals of a hearing aid as well as circuitry for carrying out the method
08/02/2006EP1686687A1 Apparatus for controlling transmission power in mobile communication terminal and method thereof
08/02/2006EP1686686A1 Am intermediate frequency variable gain amplifier circuit, variable gain amplifier circuit, and semiconductor integrated circuit thereof
08/02/2006EP1584169A4 Agc circuit arrangement for a tuner
08/02/2006CN1813402A Integrated power amplifier circuit
08/02/2006CN1812635A Loudspeaker protector
08/02/2006CN1812257A Gain control in signal processing with feed-forward gain correction
08/02/2006CN1812256A Overload regulating device for audio amplifier and method thereof
08/02/2006CN1268055C Power amplifier capable of inhibiting noise power of receiving band and gain switching
08/01/2006US7085545 Transmission power control circuit
08/01/2006US7085477 Television apparatus
08/01/2006US7085390 Method for controlling multi-mode audio gain balance
08/01/2006US7085389 Infinite slope loudspeaker crossover filter
08/01/2006US7085334 Automatic gain control with analog and digital gain
08/01/2006US7085333 Constant-phase, gain-controlled amplification circuit
08/01/2006US7085255 Selectively activated AGC signal measurement unit
08/01/2006US7084705 Automatic biasing of a power device for linear operation
08/01/2006US7084701 Preventing power-on audio output noise in a wireless telephone handset
07/2006
07/27/2006WO2006077830A1 Mobile communication terminal and method for controlling a plurality of receiving apparatuses mounted on mobile communication terminal
07/27/2006US20060166630 Dynamic bias for RF power amplifiers
07/27/2006US20060165240 Methods and apparatus for use in sound modification
07/27/2006US20060164563 Digital broadcast receiver
07/27/2006US20060164163 Amplifiers with high efficiency in multiple power modes
07/27/2006US20060164162 Low noise variable gain amplifier
07/26/2006EP1684437A1 Reception device and reception method
07/26/2006EP1684419A1 In-vehicle entertainment system
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