Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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08/22/1995 | US5444418 Method and apparatus for feedforward power amplifying |
08/22/1995 | US5444312 Soft switching circuit for audio muting or filter activation |
08/22/1995 | CA2097057C Dynamically biased amplifier |
08/17/1995 | WO1995019073A3 Receiver having an adjustable bandwidth filter |
08/16/1995 | EP0667675A1 Bias control device for an amplifier |
08/15/1995 | US5442321 Automatic transimpedance control amplifier |
08/15/1995 | US5442311 System and method for controlling a gain circuit |
08/12/1995 | CA2141981A1 Amplifier bias control device |
08/09/1995 | EP0666645A1 Circuit with gain control |
08/09/1995 | EP0665996A1 Radio transmitter with power amplifier linearizer |
08/08/1995 | US5440643 Audio peripheral mixer circuit and method for noise reduction |
08/08/1995 | US5440261 Electronic device with low current consumption |
08/02/1995 | EP0665657A2 Power amplifier for radio transmitter and dual mode remote radio |
08/02/1995 | EP0665641A2 Power amplifier and radio transmitter |
08/02/1995 | CN1029444C Analog-to-digital converter circuit having automatic range control |
08/01/1995 | US5438689 Radio receiver for a vehicle having improved audibility for speech |
08/01/1995 | US5438683 Automatic level control circuit for dual mode analog/digital cellular telephone |
07/28/1995 | CA2139707A1 Mobile radio communication apparatus adaptable to power supply voltage change |
07/26/1995 | EP0555239B1 Controlling clipping in a microwave power amplifier |
07/26/1995 | EP0426792B1 Digital signal processor based agc |
07/26/1995 | CN1105789A Automatic gain control apparatus |
07/19/1995 | EP0663748A1 Ambient noise suppression circuit for a telephone transmit channel |
07/19/1995 | EP0663120A1 Squelch detector |
07/18/1995 | US5434926 Automatic sound volume control method |
07/18/1995 | US5434922 Method and apparatus for dynamic sound optimization |
07/18/1995 | US5434539 Unity-gain linear-fader control for VCA |
07/18/1995 | US5434537 Circuit for measuring the output power from an amplifier |
07/18/1995 | US5434536 Semiconductor emulation of vacuum tubes |
07/18/1995 | US5434498 Fuse programmable voltage converter with a secondary tuning path |
07/13/1995 | WO1995019073A2 Receiver having an adjustable bandwidth filter |
07/12/1995 | EP0662268A1 Method and device for automatic gain control in an amplifier of an electroacoustic system, particularly for motor vehicules |
07/11/1995 | US5432478 Linear interpolation circuit |
07/11/1995 | US5432473 Dual mode amplifier with bias control |
07/11/1995 | US5432389 Gain stage circuit with automatic level control |
07/11/1995 | CA2042950C Automatic power control circuit for use with a radio telecommunication apparatus |
07/06/1995 | WO1995018508A1 Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator |
07/05/1995 | EP0661834A2 Method and circuit for signal combining in a space diversity receiving system |
07/05/1995 | EP0661804A2 Volume controller |
07/05/1995 | EP0661616A2 Bandgap voltage reference generator |
07/04/1995 | US5430765 Digital data receiver having DC offset cancelling preamplifier and dual-mode transimpedance amplifier |
07/04/1995 | US5430411 High-frequency amplifier arrangement, transceiver station comprising such an amplifier arrangement and mobile radio system comprising such stations |
07/04/1995 | US5430410 Amplifier bias control system |
06/28/1995 | EP0660539A2 RF Receiver using IF amplifier operative during low level reception |
06/28/1995 | EP0660536A2 Microcomputer-based carrier detection system for a cordless telephone |
06/28/1995 | EP0660511A2 Automatic gain control in radio receivers |
06/28/1995 | EP0660505A2 Error-free pulse noise canceler used in FM tuner |
06/28/1995 | EP0659288A1 Low cost controller |
06/28/1995 | EP0451277B1 Automatic gain control circuit |
06/27/1995 | US5428830 Concealed antenna system with remote variable gain RF amplifier |
06/22/1995 | WO1995017044A1 Average rf exposure control |
06/22/1995 | WO1995017042A1 An amplifier for use in a radiotelephone |
06/20/1995 | US5426641 Adaptive class AB amplifier for TDMA wireless communications systems |
06/14/1995 | EP0658018A1 Method and system for clock synchronization in an optical communications network |
06/14/1995 | EP0657997A1 Method for the automatic gain control in a digital receiver and receiver using this method |
06/13/1995 | US5424685 High-level modulator with bipolar modulation reference |
06/13/1995 | US5424682 Variable gain amplifier circuit |
06/13/1995 | US5424679 For providing a control signal for a voltage controlled amplifier |
06/13/1995 | US5424678 Muting of computer sound system during power cycling |
06/08/1995 | WO1995015643A1 Voice enhancement system and method |
06/07/1995 | EP0656165A1 Using d-c feedback with on-chip filtering to balance i-f drive to second detector in monolithic ic |
06/07/1995 | EP0656164A1 Parallel untuned video if amplifiers supplied signals from tv 1st detector via respective input filters |
06/06/1995 | US5423081 Cellular power amplifier power level control circuitry |
06/06/1995 | US5422602 Frequency discriminate leveler |
06/06/1995 | US5422601 Hybrid analog digital automatic gain control gain recovery system |
06/06/1995 | US5422598 High-frequency power amplifier device with drain-control linearizer circuitry |
05/31/1995 | EP0655848A2 Automatic gain control circuit for a digital baseband line equalizer |
05/31/1995 | EP0655832A2 Circuit for the limitation of distortions of audio signals |
05/30/1995 | US5420711 Fiber optic link amplitude stabilization circuit |
05/30/1995 | US5420536 Linearized power amplifier |
05/30/1995 | US5420535 Audio amplifier turn-off control circuit |
05/24/1995 | EP0654900A2 Radio communication device with power control of transmission |
05/24/1995 | EP0654899A1 Method and device of gain control of a high frequency amplifier |
05/24/1995 | EP0654898A2 Transmission circuit |
05/24/1995 | EP0654897A1 Automatic gain control device in an RF receiver |
05/23/1995 | US5418859 Correcting apparatus of sound signal distortion by way of audio frequency band segmentation |
05/23/1995 | US5418494 Variable gain amplifier for low supply voltage systems |
05/23/1995 | CA2136266A1 Automatic variable radio volume control system |
05/23/1995 | CA2136251A1 Adjustable clip detection system |
05/23/1995 | CA2032352C Demodulation control arrangement in satellite communications system using "scpc-dama" |
05/18/1995 | WO1995013662A1 Power detector with matching impedance for amplifier |
05/16/1995 | US5416441 Automatic control circuit for power amplifier |
05/10/1995 | EP0651925A1 Frequency hopping time-diversity communications systems and transceivers for local area networks |
05/10/1995 | EP0651906A1 Semiconductor-emulation of vacuum tubes |
05/09/1995 | US5414776 Adaptive proportional gain audio mixing system |
05/09/1995 | US5414389 For electrically controlling an amount of attenuation of input signals |
05/09/1995 | US5414386 Muting apparatus in car audio system |
05/04/1995 | WO1995012245A1 Method and apparatus for controlling a peak envelope power of a power amplifier |
05/03/1995 | EP0651521A2 Discriminating signal noise from received signals |
05/02/1995 | US5412690 Method and apparatus for receiving electromagnetic radiation within a frequency band |
05/02/1995 | US5412346 Variable gain voltage signal amplifier |
05/02/1995 | US5412341 Power control apparatus and method for a radio frequency amplifier |
05/02/1995 | US5412263 Multiple control voltage generation for MOSFET resistors |
04/25/1995 | US5410741 Automatic gain control of transponded supervisory audio tone |
04/25/1995 | US5410729 Signal transmission device having an automatic transmission level control circuit used in a multi-carrier transmission terminal equipment and multi-carrier transmission terminal equipment employing the transmission device |
04/25/1995 | US5410368 Carrier acquisition by applying substitute pilot to a synchronous demodulator during a start up interval |
04/25/1995 | US5410275 Amplifier circuit suitable for use in a radiotelephone |
04/25/1995 | US5410272 RF amplifier signal-level control, and radio transmitter equipped therewith |
04/20/1995 | DE4334890A1 Alarm detection circuit for a device operated in a motor vehicle |
04/19/1995 | EP0648851A1 Sulfur-containing powder-metallurgy tool steel article and its method of manufacture |
04/19/1995 | EP0648384A1 Method and apparatus for controlling amplifier power. |