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)
10/1998
10/27/1998US5828265 Degenerated differential pair with controllable transconductance
10/21/1998EP0801856A4 Spread-spectrum system and method
10/20/1998US5826177 Radio transmitter
10/20/1998US5825820 Waveform shaping method and equipment
10/20/1998US5825671 Signal-source characterization system
10/20/1998US5825251 Audio signal amplifying circuit
10/20/1998US5825239 Peak detector for automatic gain control
10/15/1998WO1998045955A2 Serial digital data communications receiver with automatic cable equalizer, agc system, and dc restorer
10/15/1998WO1998045940A1 Automatic volume control in an audio-signal reproduction facility, and device required
10/15/1998WO1998045937A1 Radio communications apparatus with attenuating ear pieces for high noise environments
10/14/1998EP0870391A2 Voice enhancement system and method
10/14/1998EP0870361A1 Efficient parallel-stage power amplifier
10/13/1998US5822017 AGC for video signal comprising fusible links
10/13/1998US5821814 Negative feedback amplifier
10/08/1998WO1998044654A2 Power control of rf signals with booster module
10/08/1998WO1998044628A1 Circuitry and method for power calibration
10/08/1998WO1998044627A1 Power amplication system with intelligent control of amplifier modules
10/08/1998DE19713862A1 Verfahren zur automatischen Lautstärkesteuerung in einer Audiosignal-Wiedergabevorrichtung und Anordnung dazu Method for automatic volume control in an audio signal reproducing apparatus and arrangement to
10/08/1998CA2285347A1 Power amplification system with intelligent control of amplifier modules
10/07/1998CN1195226A Feed forward amplifier system and method
10/06/1998US5818300 Variable gain amplifier circuit with reduced power requirements
10/06/1998US5818299 Power management in a computer
10/04/1998CA2201834A1 Serial digital data communications receiver with improved automatic cable equalizer, agc system, and dc restorer
10/01/1998WO1998043348A2 Radio receiver and controllable amplifier circuit
09/1998
09/30/1998EP0867075A1 Interference detection circuit having amplitude frequency domain defined discrimination
09/30/1998EP0567546B1 Amplitude control of a burst signal in a receiver
09/29/1998US5815536 Multivalue digital transmission system
09/29/1998US5815299 Method and system for equalizing respective power levels of channels of a received optical frequency division multiplexed signal
09/29/1998CA2143358C Receiver, automatic gain controller suitable for the receiver, control signal generator suitable for the automatic gain
09/23/1998EP0866563A2 Method and arrangement for the analogue-to-digital conversion of an image signal
09/23/1998EP0866550A2 Pulse forming device of high frequency signals
09/23/1998EP0866549A1 Reduction of excessive spectral power distribution from class-C saturated amplification of a pulsed-carrier
09/23/1998CN1193844A High frequency variable gain amplifier device and wireless communications terminal
09/22/1998US5812941 Circuit for measuring output powers of channels and stabilizing radiofrequency output in system using linear power amplifier
09/22/1998US5812673 Noise suppressing device
09/22/1998US5812503 Positioning control system having an optical beam and a servo-error signal generating circuit for accurately irradiating a desired position
09/22/1998US5812030 Amplifier device capable of carrying out a stable amplifying operation without a gain variation
09/22/1998US5812029 Gain control circuit and method
09/22/1998US5812028 Audio signal amplifier circuit and a portable acoustic apparatus using the same
09/22/1998US5812025 Automatic-gain-control circuit compensating for changes in gain control characteristics
09/22/1998US5812023 Voltage offset compensation circuit
09/22/1998US5812008 Logarithmic converter
09/22/1998CA2100154C Switched signal processing circuit
09/16/1998EP0865155A1 Circuit arrangement for noise suppression in the receiving part of a CB-transceiver or CB-receiver
09/16/1998CN1193450A Circuit, audio system and method for processing signals and harmonics generator
09/16/1998CN1193425A Gain control
09/16/1998CN1193424A Adaptive gain controller
09/16/1998CN1193224A Method for controlling radio signal power according to variation of frequency and temp. in paging signal-emission machine
09/15/1998US5809420 Transmission power control apparatus
09/15/1998US5809400 Radio receiver
09/15/1998US5808575 Gain varying device capable of varying each gain of analog and digital signals
09/09/1998EP0863610A2 Power control for a radio frequency amplifier
09/09/1998EP0863609A2 Amplifier circuits
09/09/1998CN1192625A Circuit for automatically adjusting input sensitivity of audio signal in monitor
09/08/1998US5805986 High-frequency step attenuator suitable for transmission circuit
09/08/1998US5805716 For processing a received audio signal
09/08/1998US5805559 Optical recording or reproducing apparatus
09/08/1998US5805022 Circuit for automatically regulating the gain of a differential amplifier
09/03/1998WO1998038735A2 Signal processing device
09/02/1998EP0862265A2 Anti pop for power off
09/02/1998EP0862264A2 Feedback amplifier and optical receiver using the same
09/02/1998CN1192084A 放大器系统 Amplifier System
09/02/1998CN1192083A Anti-pop for power off
09/01/1998US5802186 Audio signal processing apparatus
08/1998
08/27/1998WO1998037711A2 A receiver unit for a central terminal of a wireless telecommunications system
08/27/1998WO1998037629A1 Receiver if system with active filters
08/26/1998EP0860826A2 PRML system with reduced complexity maximum likelihood detector
08/25/1998US5798959 Method and device for soft-driving an array of logic gates and suppression of switching distortion
08/25/1998US5798674 Band Limited AM modulator using linear power amplification
08/25/1998US5798665 Bias controller for decreasing bias current supplied to amplifier without sacrifice if distortion
08/25/1998CA2124887C Automatic gain control apparatus
08/19/1998EP0859464A2 Mobile station having dual band RF detector and gain control
08/19/1998EP0859463A2 Time division multiple access system radio equipment and synthesizer output level adjusting circuit
08/19/1998EP0859462A1 Gain controlling method and receiver
08/18/1998US5797090 Radio receiving apparatus having current consumption reducing function
08/18/1998US5796852 System and method for electronic volume control of audio signals
08/18/1998US5796851 Digital method to eliminate power-on pops and clicks
08/18/1998US5796847 For a vehicle
08/18/1998US5796310 Amplification circuit using wire-bonding for adjusting amplification factor
08/18/1998US5796309 Temperature compensated wide dynamic range power detection circuitry for portable RF transmission terminals
08/18/1998US5796306 Wide range variable output amplifier apparatus with high efficiency
08/18/1998US5796303 Popless amplifier
08/18/1998CA2154584C An amplifier for use in a radiotelephone
08/12/1998EP0858180A2 Method for muting of hearing devices in mobile communication terminals
08/12/1998CN1190293A Method of reducing clicks in data transmission system
08/11/1998US5794136 Noise blanker and a radio receiver and method employing same
08/11/1998US5793874 Control circuit
08/11/1998US5793252 For electronic audio signals
08/11/1998CA2080450C Burst control circuit for use in tdma communications system
08/06/1998WO1998034342A1 Low power, high linearity log-linear control method and apparatus
08/06/1998DE19703340A1 Electronic interrupting system for car radio
08/05/1998EP0856943A2 Gain control for an optical receiver
08/05/1998EP0856942A2 Radio receiver with underpass detector
08/05/1998CN1189938A Improvements in or relating to radio receivers
08/05/1998CN1189937A Spurious signal reduction in RF transmitter integrated circuits
08/05/1998CN1189754A Mobile station having drift-free pulsed power detection method and apparatus
08/04/1998US5790671 Method for automatically adjusting audio response for improved intelligibility
08/04/1998US5790555 Signal multiplexer and multiplexing method
08/04/1998US5789984 RF power amplifiers
08/04/1998US5789983 High-frequency amplifier having variable gain in response to input power level
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