Patents
Sitemap › H03 - Basic electronic circuitry › H03G - Control of amplification › H03G 3 - Gain control in amplifiers or frequency changers
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
11/2005
11/17/2005US20050255825 Receiver circuit and radio communication terminal apparatus
11/17/2005US20050255809 Method and control system for controlling the output power of an RF amplifier system
11/17/2005US20050253655 Amplifier bias enhancement technique
11/17/2005DE102005006645A1 Farbsensorschaltung mit integrierter programmierbarer Gewinnauswahl Color sensor circuit with integrated programmable gain selection
11/17/2005CA2565565A1 Gain control for a receiver in a multi-carrier communication system
11/16/2005EP1595344A2 Method and apparatus for selective disregard of co-channel transmissions on a medium
11/16/2005EP1595333A2 Multimode background scans of different communication systems on similar frequencies
11/16/2005EP1595331A1 System and method for reducing transfer function ripple in a logarithmic rms-to-dc converter
11/16/2005EP1595329A2 Improving the efficiency of power amplifiers in devices using transmit beamforming
11/16/2005EP1305882B1 Programmable gain amplifier for use in a data network
11/16/2005CN1698355A Sound level adjusting apparatus
11/16/2005CN1698276A Digital signal reception device
11/16/2005CN1698275A Receiver circuit and radio communication terminal apparatus
11/16/2005CN1698266A Communication terminal device and amplification circuit
11/16/2005CN1698265A Logic low noise amplifier and amplification control method thereof
11/16/2005CN1697316A Transmitter architectures for communications systems
11/16/2005CN1697315A Apparatus and method for outputting sound
11/16/2005CN1697313A Drive circuit able to gradually increase and reduce voltage
11/16/2005CN1227810C Radio receiver and gain controlled amplifier therefor
11/16/2005CN1227809C Method for comparison of amplitudes of two electric signals
11/16/2005CN1227770C Method and device for regulating the power of millimeter waves for a V-band TR module
11/15/2005US6965762 System and method for antenna diversity using joint maximal ratio combining
11/15/2005US6965676 Volume-responsive loudness compensation circuits, systems, and methods
11/15/2005US6965656 Automatic gain control method and automatic gain control circuit
11/15/2005US6965655 Apparatus for and method of optimizing the performance of a radio frequency receiver in the presence of interference
11/10/2005WO2005107222A1 Telephone headset amplifier with noise blanking capability
11/10/2005WO2005107085A1 Signal processing method, particularly in a high-frequency receiver, and signal conditioning circuit
11/10/2005WO2005106843A1 Reproduction control of an audio signal based on musical genre classification
11/10/2005US20050250541 Communication station with automatic cable loss compensation
11/10/2005US20050250462 Gain control circuit
11/10/2005US20050249363 Signal processing method for audio signal compensation
11/10/2005US20050248402 Dual-band CMOS front-end with two gain modes
11/10/2005US20050248389 Dynamic gain compensation and calibration
11/10/2005DE4316526B4 Sender mit einem steuerbaren Leistungsverstärker Transmitter with a controllable power amplifier
11/10/2005DE102004019336A1 Verfahren und Schaltungsanordnung zur Vermeidung oder zumindest zur Reduzierung von Störsignalen beim Abschalten einer Spannungsabgabeschaltung, insbesondere eines Hausgerätes Method and circuit arrangement to avoid or at least to reduce noise when turning off a voltage output circuit, in particular a domestic appliance
11/09/2005EP1594231A1 Receiver circuit and radio communication terminal apparatus
11/09/2005EP1095449A4 Amplifier with dynamically adaptable supply current
11/09/2005CN1694355A Wave damping protecting device of microphone
11/09/2005CN1226825C Automatic circuit for regulating gain of analog signal possessing a section of usable range for extended gain
11/08/2005US6963733 Method and apparatus for reducing the effect of AGC switching transients
11/08/2005US6963189 Attenuation control for digital power converters
11/03/2005WO2005104371A2 Method and circuit used to prevent or at least to reduce disturbance signals when switching off voltage supply, in particular in a household device
11/03/2005WO2005104360A1 Radio receiver volume control system
11/03/2005US20050245290 Telephone headset amplifier with noise blanking capability
11/03/2005US20050245214 Transmitting apparatus and radio communication apparatus
11/03/2005US20050245213 Communication apparatus
11/03/2005US20050245212 Electronic component for amplifying high frequency power and radio communication system
11/03/2005US20050244013 Noise exposure monitoring device
11/03/2005US20050242884 Adjustable power amplifier and applications thereof
11/03/2005US20050242883 Compensating a power amplifier based on operational-based changes
11/03/2005US20050242882 Wireless terminals, methods and computer program products with transmit power amplifier input power regulation
11/03/2005US20050242881 Variable gain amplifier with improved control characteristics linearity
11/03/2005US20050242880 Power amplifier system
11/03/2005US20050242879 Transmission arrangement and method for operating an amplifier in a transmission arrangement
11/03/2005US20050242875 High efficiency linear amplifier employing dynamically controlled back off
11/03/2005DE102004017528A1 Sendeanordnung und Verfahren zum Betreiben eines Verstärkers in einer Sendeanordnung Transmitting arrangement and method for operating an amplifier in a transmission arrangement
11/03/2005DE102004016184A1 Verfahren zur Vermeidung von Hörschäden und Gehörschutzeinrichtung A method for avoiding hearing loss and hearing protection device
11/02/2005EP1592262A2 Video signal processing apparatus
11/02/2005EP1592129A1 Ramp circuit
11/02/2005CN1692558A Transmitting method and transmitter apparatus
11/02/2005CN1692551A Differential amplifier and calculation amplifier
11/02/2005CN1690674A Color sensor circuit with integrated programmable gain selection
11/01/2005US6961553 Bidirectional distributed amplifier
11/01/2005US6961552 LNA gain adjustment for intermodulation interference reduction
11/01/2005US6961551 Dual speed squelch circuit and method
11/01/2005US6961550 Radio receiver that changes function according to the output of an internal voice-only detector
11/01/2005US6961548 Method for masking interruptions on playback of received radio signals
11/01/2005US6961436 Noise-protecting arrangement for ear protector
11/01/2005US6961396 Digital banking circuit
10/2005
10/27/2005WO2005101678A2 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
10/27/2005WO2005101672A1 Apparatus and method for detecting radio frequency transmission power levels
10/27/2005US20050239427 Gain control method, gain controller, receiver having the gain controller, and mobile telephone
10/27/2005US20050239425 System and method for adaptively controlling receiver gain switch points
10/27/2005US20050238190 Hearing aid
10/27/2005US20050238186 Method for switching audio signals and the device of the same
10/27/2005US20050238184 Apparatus and method for adjusting sound volume for televisions and other audio systems
10/27/2005US20050238014 Receiver and method for receiving burst mode packet
10/27/2005US20050237401 Color sensor circuit with integrated programmable gain selection
10/27/2005US20050237110 RF power amplifier with load insensitive indirect forward power detector
10/27/2005DE202005008114U1 Level limitation in high frequency receiver for frequency modulation or frequency shift keying modulation has amplifier limiter log amplifier and forwards gain control circuit
10/27/2005DE102005015599A1 AGC-Schaltung AGC circuit
10/27/2005CA2562111A1 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
10/26/2005EP1589784A2 Hearing-aid with operating device
10/26/2005EP1589666A1 Method for correcting a mobile telephone having an automatic power control function and a correction system therefor
10/26/2005EP1588517A1 Method and apparatus for automatic gain control of a multi-carrier signal in a communication receiver
10/26/2005EP1588486A2 Method for controlling power for a mobile communications terminal
10/26/2005CN1225091C Base band circuit of receiver and low frequency cut-off frequency controlling method
10/26/2005CN1225082C High frequency power amplifier and power amplifier module utilizing the same
10/25/2005US6959094 Apparatus and methods for synthesis of internal combustion engine vehicle sounds
10/25/2005US6959082 Method and system for automatic gain control with adaptive table lookup
10/25/2005US6959055 Multi-stage automatic gain control for spread-spectrum receivers
10/25/2005US6958656 Power amplifier module
10/25/2005US6958655 Variable gain amplifier circuit using variable impedance circuit
10/25/2005US6958649 High-frequency power amplification electronic part and wireless communication system
10/25/2005US6958644 Active filter circuit with dynamically modifiable gain
10/20/2005WO2005099304A1 Sound volume control circuit, semiconductor integrated circuit, and sound source device
10/20/2005WO2005099106A1 Am reception circuit
10/20/2005WO2005099085A1 Method and system for ensuring audio safety
10/20/2005WO2005099084A1 Automatic current reduction biasing technique for rf amplifier
10/20/2005US20050233720 Method of suppressing frequency-shift keying (FSK) interference
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