| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
|---|
| 09/14/1993 | US5245297 Power amplifier and transmitter with improved ramping |
| 09/14/1993 | US5245296 Audio amplifier circuit and method of operation |
| 09/08/1993 | EP0559093A1 A digital mobile radio receiver |
| 09/07/1993 | US5243657 Automatic microphone sensitivity control circuit |
| 09/07/1993 | US5243513 Automation control with improved operator/system interface |
| 09/07/1993 | US5243300 High frequency amplifying apparatus |
| 09/07/1993 | CA1322033C2 Power amplifier for a radio frequency signal |
| 09/01/1993 | EP0558309A1 Digital signal attenuation circuit for an interactive compact disc player |
| 09/01/1993 | EP0558210A1 Radio transceiver apparatus with booster |
| 08/31/1993 | US5241698 Radio receiver operational checking method and system including reactive coupling |
| 08/31/1993 | US5241696 Tuner with selective equalization of different program sources |
| 08/31/1993 | US5241694 Circuit for forming low power levels in a transmitter of a radio telephone |
| 08/31/1993 | US5241692 Interference reduction system for a speech recognition device |
| 08/31/1993 | US5241690 Method for regulating power in a digital mobile telephony system |
| 08/31/1993 | US5241316 Use of iteration to improve the correction of AGC dependent channel-to-channel gain imbalance |
| 08/31/1993 | US5241227 Active high band weighting circuit of noise reduction circuit |
| 08/25/1993 | EP0556902A1 AGC circuit |
| 08/25/1993 | EP0556644A1 Integrated circuit |
| 08/24/1993 | US5239702 Tuning detector |
| 08/24/1993 | US5239701 Radio receiver with improved channel selection and reception |
| 08/24/1993 | US5239695 Radio-frequency power control circuit of mobile radiophone |
| 08/24/1993 | US5239675 Reduced noise interference during handoff |
| 08/24/1993 | US5239458 Fader device having a fine adjustment of the signal level |
| 08/22/1993 | CA2089589A1 Transmission signal level control device for radio transmitter |
| 08/19/1993 | DE4204385A1 Regulation of noise in passenger compartment in motor vehicle - subtracting integrated loudspeaker and microphone signals and detecting lowest value using comparator for regulation of audio end stage amplifier |
| 08/18/1993 | EP0555873A2 Method and apparatus for detecting fades in digital video sequences |
| 08/18/1993 | EP0555239A1 Controlling clipping in a microwave power amplifier. |
| 08/11/1993 | EP0554755A2 Circuit for generating a control signal during the commutation of a switch from one position to the next |
| 08/04/1993 | EP0554097A1 Control device for power amplifier |
| 08/04/1993 | EP0553300A1 Linear gain control amplifier |
| 08/03/1993 | US5233634 Automatic gain control circuit in a radio telephone receiver |
| 08/03/1993 | US5233309 Programmable gain amplifier |
| 07/31/1993 | CA2087744A1 Control device for power amplifier |
| 07/27/1993 | US5231360 Multi-range voltage amplifier having multiplying digital/analog converters and programmable filter using multiplying DAC in feedback loop |
| 07/22/1993 | WO1993014564A1 Programmable gain amplifier |
| 07/20/1993 | US5230093 Transmitter filter with integral directional coupler for cellular telephones |
| 07/20/1993 | US5229720 Vca circuit |
| 07/20/1993 | CA2006288C Gain controller |
| 07/20/1993 | CA1320604C Transmitter circuit for efficiently transmitting communication traffic via phase modulated carrier signals |
| 07/20/1993 | CA1320545C Automatic gain control system |
| 07/14/1993 | CN1074318A Gain control circuit for radio transmitter |
| 07/14/1993 | CN1074317A Analog-to-digital converter circuit having automatic range control |
| 07/13/1993 | US5228091 Loudness control circuit for selectively emphasizing both high frequency and low frequency components |
| 07/13/1993 | US5228063 Circuit arrangement for automatic gain control |
| 07/13/1993 | US5227737 Method and apparatus for adjusting the pole positions of a differentiating amplifier |
| 07/06/1993 | CA1319956C Radio receiver with a received input level monitoring circuit |
| 07/01/1993 | WO1993013613A1 Gain control circuit for radio transmitter |
| 06/30/1993 | EP0549479A1 Digitally assisted power levelling circuit for RF power generator |
| 06/30/1993 | EP0549043A1 Integrated circuit comprising an amplifier with variable gain |
| 06/30/1993 | EP0548542A1 Radiofrequency frequency multiplier comprising an automatic level control cicuit |
| 06/30/1993 | EP0548479A1 Amplification circuit with exponential gain control |
| 06/30/1993 | EP0548181A1 Audio-visual reproduction. |
| 06/27/1993 | WO1993013044A1 Higher aldehyde separation process |
| 06/27/1993 | CA2126749A1 Higher aldehyde separation process |
| 06/24/1993 | DE4141843A1 Signal reproduction control for music and speech signals - identifying music or speech signal characteristic by signal analysis to adjust volume and-or tone setting |
| 06/23/1993 | EP0547832A1 Dynamic range extension system |
| 06/23/1993 | EP0547078A1 Power amplifier. |
| 06/23/1993 | CN1073562A ADPCM decoder with an integral digital receive gain and method therefor |
| 06/22/1993 | US5222104 Gain control circuit for radio transmitter |
| 06/16/1993 | EP0546693A1 Control circuit and method for transmission output |
| 06/16/1993 | EP0546658A1 Method and apparatus for controlling RF spectral interference into adjacent channels in an RF transmitter |
| 06/16/1993 | EP0546638A1 Stabilized transient response of a cascode CMOS amplifier |
| 06/15/1993 | US5220685 Mute and automatic restore device for communications receivers |
| 06/15/1993 | US5220613 Audio amplifier circuit |
| 06/15/1993 | US5220589 Correction circuit for a floating-point amplifier |
| 06/15/1993 | US5220565 Selective transmission of encoded voice information representing silence |
| 06/15/1993 | US5220290 Power amplifier |
| 06/15/1993 | US5220287 Voice processing apparatus |
| 06/15/1993 | US5220220 Noise suppression system |
| 06/15/1993 | US5220219 Electronically controlled variable gain amplifier |
| 06/09/1993 | EP0545531A1 Multichannel amplifier with gain matching |
| 06/09/1993 | EP0545254A2 Analog-to-digital converter circuit having automatic range control |
| 06/08/1993 | US5218643 Audio system for vehicle |
| 06/08/1993 | US5218320 Wideband amplifier circuit having automatic gain and offset voltage control |
| 06/08/1993 | US5218318 Variable gain amplifier |
| 06/02/1993 | EP0543927A1 Variable-gain amplifier controlled by an analog signal and having a large dynamic range |
| 06/02/1993 | EP0185692B2 Process for reducing the noticeability of errors in a digital audio signal |
| 06/01/1993 | US5216385 Resistorless trim amplifier using MOS devices for feedback elements |
| 06/01/1993 | US5216384 Programmable amplifier device |
| 06/01/1993 | US5216383 Controllable amplifier circuit |
| 06/01/1993 | US5216378 Switch adaptable radio frequency amplifier |
| 06/01/1993 | US5216355 Electronic volume controller |
| 05/26/1993 | EP0543037A1 Output circuit with adjustable parameters in an integrated circuit |
| 05/25/1993 | US5214393 Transmission output control circuit |
| 05/19/1993 | EP0542329A1 Amplifier with adjustable output level |
| 05/19/1993 | EP0541962A2 Visual indicator for hearing protection in an audio amplifier |
| 05/18/1993 | US5212827 Zero intermediate frequency noise blanker |
| 05/18/1993 | US5212814 Automatic output power controller |
| 05/12/1993 | EP0541351A2 D/A converter offset correction |
| 05/11/1993 | US5210707 Signal mixing apparatus for processing parallel digital data on a time shared basis using analog addition |
| 05/11/1993 | US5210518 Apparatus and method for reducing errors in data caused by noise |
| 05/11/1993 | US5210508 High-frequency amplifier of a radio transmitter |
| 05/11/1993 | US5210504 Semiconductor device for tv tuner and tv tuner using the same |
| 05/11/1993 | CA1317648C Power amplifier for a radio frequency signal |
| 05/05/1993 | EP0540146A2 Apparatus for controlling consumption power for GaAs fet |
| 05/05/1993 | CN1020516C Processing circuit for signal |
| 05/04/1993 | US5208866 On-board vehicle automatic sound volume adjusting apparatus |
| 05/04/1993 | US5208865 Muting circuit using common mode rejection of differential amplifier |
| 05/04/1993 | US5208550 Radio-frequency power amplifier device |
| 05/04/1993 | US5208549 Automatic power control apparatus for linear modulation |