Patents
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
10/2007
10/25/2007US20070248197 Automatic Gain Control Apparatus and Method in Orthogonal Frequency Division Multiplexing
10/25/2007US20070247217 Systems and methods of rf power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
10/25/2007US20070247208 Offset correcting method, offset correcting circuit, and electronic volume
10/25/2007DE102006018309A1 Small signal e.g. alternating voltage signal, interferencing device for use in motor vehicle, has differential amplifier for compensating constant component of small signal, and regulating unit for adjusting amplification of amplifier
10/25/2007DE102006017864A1 Sound events e.g. speech announcement signal, perception manipulating method for vehicle, involves detecting view-affecting environment parameters to provide signal that concludes whether precipitation prevails in vehicle
10/24/2007EP1848112A1 Automatic gain control circuit with adjustment of target value
10/24/2007EP1847016A1 Receiver having a gain-controllable input stage
10/24/2007EP0921635B1 Power amplifier device
10/24/2007CN101061544A Reproducing information from an information carrier
10/24/2007CN101060724A A method for avoiding the hearing injury of audio equipment and electro-acoustic device made through this method
10/24/2007CN101060347A AM and FM broadcast receiving circuit
10/24/2007CN101060346A A device and method for improving the dynamic range of receiver
10/24/2007CN101060315A Sound volume management system and method
10/24/2007CN101060314A Hearing protection method and sound output device
10/24/2007CN101060313A Hearing protection method and sound output device
10/24/2007CN101060312A Sound volume converting device
10/24/2007CN100345443C Sound level adjusting apparatus
10/24/2007CN100345385C Mobile-communication equipment and transmission power control method
10/23/2007US7286809 Method and circuit system for suppressing noise in a signal processing circuit
10/23/2007US7286807 Receiver with a cascade of resonant amplifiers in the RF input stage
10/23/2007US7286676 Audio apparatus
10/23/2007US7286663 Asymmetric digital subscriber line system capable of automatically controlling receipt gain and method thereof
10/23/2007US7286618 Digital AGC circuit
10/23/2007US7286012 Operational amplifier circuit with controllable intermediate circuitry set therein
10/18/2007WO2007118101A1 Method and system for automatic gain control during signal acquisition
10/18/2007WO2007118053A1 Method and system for automatic gain control with intelligent selection of signal samples
10/18/2007WO2007085267A3 Auditory perception controlling device and method
10/18/2007US20070244587 Sound Volume Converting Apparatus
10/18/2007US20070243842 System and method for adaptively controlling receiver gain switch points
10/18/2007US20070242845 Method of preparing a hearing aid, and a hearing aid
10/18/2007US20070242838 Electronic Device and Sound Level Control Method
10/18/2007US20070242833 Device and method for generating an ambience signal
10/18/2007US20070241821 Signaling system with low-power automatic gain control
10/18/2007US20070241813 Amplifier Circuit with Automatic Gain Correction
10/18/2007DE102006019694B3 Hearing aid amplification adjusting method, involves determining maximum amplification or periodical maximum amplification curve in upper frequency range based on open-loop-gain- measurement
10/18/2007DE102006014778A1 Vorrichtung und Verfahren zur betriebsparameterabhängigen Verstärkungseinstellung in Funkeinrichtungen Apparatus and method for operating parameter-dependent gain adjustment in radio equipment
10/17/2007EP1845625A2 Double conversion receiver
10/17/2007EP1845615A1 Muting device, liquid crystal display television, and muting method
10/17/2007EP1845614A2 Audio output apparatus and television broadcast receiver
10/17/2007EP1076928A4 User adjustable volume control that accommodates hearing
10/17/2007CN200962581Y Environment protection electronic alarm
10/17/2007CN101057399A Method and apparatus for providing limiting power adjustment in a wireless communication system
10/17/2007CN101057398A Method and apparatus for predictively optimizing efficiency of a radio frequency (RF) power amplifier
10/17/2007CN100343915C Data regenerating device
10/16/2007US7283879 Dynamic normalization of sound reproduction
10/16/2007US7283802 Remote control system
10/16/2007US7283157 Automatic level control (ALC) for video signals
10/16/2007US7282996 Electronic amplifier with signal gain dependent bias
10/11/2007WO2007115327A2 Automatic gain control
10/11/2007WO2007114348A1 Reproduction sound volume adjusting device and method
10/11/2007WO2007113931A1 Receiver
10/11/2007WO2007113470A1 Automatic switched gain amplifier for mobile reception
10/11/2007WO2007112868A1 Device and method for setting the amplification which is dependent on operational parameters in radio devices
10/11/2007US20070239152 Electrolytic depilation device
10/11/2007US20070238432 Variable gain amplifier, and am-modulated signal reception circuit and detection circuit
10/11/2007US20070237335 Hormonic inversion of room impulse response signals
10/11/2007US20070237334 System and method for enhancing audio output of a computing terminal
10/11/2007US20070236571 Digital tv receiving smart antenna control system and controlling method of the same
10/11/2007US20070236292 Fast settling power amplifier regulator
10/10/2007EP1843467A2 Method and apparatus for squelch gating a receiving signal
10/10/2007EP1843466A1 Method and apparatus for leveling an increasing or decreasing slope of an AM modulated receiving signal
10/10/2007EP1628394B1 Detection circuit and detection circuit adjustment method
10/10/2007CN200959675Y Double voice-coil loundspeaker and amplifying and controlling circuit
10/10/2007CN200959674Y Small thin large-power loundspeaker with high-sensitivity and voice-quality and amplifying and controlling circuit
10/10/2007CN101053277A Sound electronic circuit and method for adjusting sound level thereof
10/10/2007CN101051823A Portable audio device providing automated control of audio volume parameters for hearing protection
10/10/2007CN101051822A Method for automatic control and regulating broadcast volume
10/10/2007CN101051816A Device and method for realizing wide band micro power linear power amplication
10/09/2007US7280839 Wireless communication device having gain error correcting feature
10/09/2007US7279979 Method and arrangement for adjusting an output impedance of a power amplifier
10/09/2007US7279978 Gain stage control method and related control circuit
10/09/2007US7279977 Integrated circuit with resistive network having reduced mismatch
10/09/2007US7278577 Image input system
10/09/2007CA2280471C Power amplifier having monitoring and circuit protection
10/04/2007WO2007111582A1 Audio system with parental maximum volume control
10/04/2007WO2007110816A1 Automatic gain control circuit
10/04/2007WO2007110693A1 Sony ericsson mobile communications ab
10/04/2007WO2007110556A1 Amplifier gain control
10/04/2007WO2007109830A1 Volume control device and distributed audio system
10/04/2007US20070232252 Attenuator with switch function and mobile telephone terminal device using the same
10/04/2007US20070229164 Low noise amplifier and low noise amplifying method
10/04/2007US20070229162 Electronic circuit
10/04/2007US20070228988 Vacuum tube circuit
10/03/2007EP1841090A1 CDMA wireless transmitter-receiver system and transmission power control method of a CDMA wireless transmission apparatus
10/03/2007EP1841061A2 Gain control method and apparatus in receiver of wireless communication system
10/03/2007CN101048935A Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
10/03/2007CN100341250C An automatic gain control system and method
10/02/2007US7278101 Controlling audio volume in processor-based systems
10/02/2007US7277689 Transmission arrangement with power regulation
10/02/2007US7277684 Antenna amplifier and shared antenna amplifier
10/02/2007US7277678 Fast closed-loop power control for non-constant envelope modulation
10/02/2007US7277511 Two-stage non-linear filter for analog signal gain control in an OFDM receiver
10/02/2007US7276967 Signal level adjusting apparatus, gain value updating method, and program
10/02/2007US7276966 Radio frequency envelope apparatus and method
09/2007
09/27/2007US20070224960 Radio receiver and radio signal processing method
09/27/2007US20070223741 Audio amplifier and methods for use therewith
09/27/2007US20070223738 Volume-Based Adaptive Biasing
09/27/2007US20070223737 Audio system with parental maximum volume control
09/27/2007US20070223733 Ambient Noise Sound Level Compensation
09/27/2007US20070223711 System and method for visualizing sound source energy distribution
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