| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 08/30/1994 | US5343162 RF variable gain tuned output amplifier which maintains high Q in saturation |
| 08/24/1994 | EP0612144A1 Automatic control circuit for a power amplifier |
| 08/24/1994 | EP0612143A1 HF amplifier, transmit-receive station using the amplifier and mobile radio system using the station |
| 08/24/1994 | EP0611509A1 Variable gain amplifier |
| 08/23/1994 | US5341287 Method and apparatus for the control and regulation of a first magnitude of a device by action on a second magnitude |
| 08/23/1994 | US5341173 Automatic gain control circuit |
| 08/23/1994 | US5341106 Amplitude locked loop circuits |
| 08/18/1994 | WO1994018773A1 Gain control circuit for synchronous waveform sampling |
| 08/18/1994 | WO1994018757A1 Circuit for removing random fm noise |
| 08/18/1994 | WO1994018756A1 Method and apparatus for controlling a power level of a subscriber unit of a wireless communication system |
| 08/18/1994 | DE4304819A1 Input circuit for a straight-through receiver |
| 08/18/1994 | DE4303110A1 Broadcast receiving system |
| 08/17/1994 | EP0611100A1 Circuit for measuring the output power from an amplifier |
| 08/17/1994 | EP0610564A2 Dual gate fet and circuits using dual gate fet |
| 08/16/1994 | US5339454 Automatic gain control for RF amplifier |
| 08/16/1994 | US5339453 AGC circuit for radio receiver having AGC sensitivity compensated by if output signal |
| 08/16/1994 | US5339046 Temperature compensated variable gain amplifier |
| 08/16/1994 | US5338985 Low voltage, simplified and temperature compensated logarithmic detector |
| 08/16/1994 | CA2032401C Circuit for measuring the level of an electrical signal and including offset correction means, and application thereof to amplifiers having automatic gain control |
| 08/16/1994 | CA2024362C Transmitting power control circuit |
| 08/10/1994 | EP0609665A1 Circuit for digital processing of audio signals |
| 08/09/1994 | US5337201 Information signal output apparatus with amplitude control having selected speed response |
| 08/09/1994 | US5337025 Adaptive equalization circuit for equalizing the frequency response of varying lengths of transmission line |
| 08/09/1994 | US5337020 Differential radio frequency detector/comparator for power level control |
| 08/09/1994 | US5337019 Integrated circuit arrangement |
| 08/09/1994 | US5337006 Output level control circuit for use in RF transmitter |
| 08/04/1994 | WO1994017601A1 Communications receiver with an adaptive squelch system |
| 08/04/1994 | WO1994017598A1 Communication apparatus |
| 08/04/1994 | CA2154082A1 Communications system |
| 08/03/1994 | EP0477175B1 Direct conversion receiver for digital signals and method for demodulation of said signals |
| 08/02/1994 | US5335369 Automatic power control circuit for use with a radio telecommunication apparatus |
| 08/02/1994 | US5334979 Power controller |
| 08/02/1994 | US5334947 Logic enhanced noise gate |
| 08/02/1994 | US5334945 Power control circuit |
| 07/27/1994 | EP0607944A1 An AGC circuit for burst signal |
| 07/27/1994 | EP0607849A1 Fiber optic link amplitude stabilisation circuit |
| 07/27/1994 | EP0607789A1 Circuit for generating an output signal exponentially depending on the input signal |
| 07/27/1994 | EP0607702A2 A variable equalization amplifier |
| 07/27/1994 | CA2110073A1 Dual gate fet and circuits using dual gate fet |
| 07/26/1994 | US5333153 Signal quality detection method and apparatus for optimum audio muting |
| 07/21/1994 | WO1994016493A1 Audio amplifiers |
| 07/20/1994 | CN1089768A Wideband amplifier for TV antenna |
| 07/19/1994 | US5331638 Gain control in a TDMA radio-telephone system |
| 07/19/1994 | US5331290 Variable gain amplifier |
| 07/19/1994 | US5331221 Gain linearity correction for MOS circuits |
| 07/12/1994 | US5329246 Circuit and method of setting a bias point for a single-ended ampliifier during power-up |
| 07/12/1994 | US5329244 Linear compensating circuit |
| 07/12/1994 | US5329243 Noise adaptive automatic gain control circuit |
| 07/12/1994 | US5329191 Integrated dynamic amplitude limiter independent of the supply voltage |
| 07/12/1994 | CA2009449C Time dependant, variable amplitude threshold output circuit for frequency variant and frequency invariant signal discrimination |
| 07/06/1994 | EP0604622A1 Rf amplifier bias control method and apparatus |
| 07/05/1994 | US5327583 Using a clock signal generated by a microcomputer for providing a negative bias voltage to a galium arsenide field effect transistor in a high frequency amplifier of the device |
| 07/05/1994 | US5327098 Programmable gain amplifier circuitry and method for biasing JFET gain switches thereof |
| 07/05/1994 | US5327097 Gain control circuit |
| 06/29/1994 | EP0604295A1 A method for automatic gain control of a digital receiver, in particular in a TDMA receiver and a device for performing the method |
| 06/29/1994 | EP0603938A1 Universal signal converter |
| 06/29/1994 | EP0603867A1 Distortion compensating circuit of high-frequency power amplifier |
| 06/28/1994 | US5325071 Operational amplifier with digitally programmable gain circuitry on the same chip |
| 06/25/1994 | CA2111616A1 Dual-mode power amplification apparatus |
| 06/23/1994 | DE4243412A1 Switch or regulator for stereo hi=fi preamplifier |
| 06/22/1994 | EP0602370A1 Broadcast receiver |
| 06/22/1994 | EP0602355A1 Fuse programmable voltage down converter |
| 06/21/1994 | US5323425 Direct conversion receiver for digital signals and method for demodulation of said signals |
| 06/21/1994 | US5323329 Digitally assisted power levelling circuit for rf power generator |
| 06/21/1994 | US5323123 Integrated circuit having a variable-gain amplifier |
| 06/16/1994 | DE4242384A1 Homodyne receiver for amplitude-sampled radio time signals - has code-selective switchable time constant in integrating circuit sepg. DC component for gain control of input amplifiers |
| 06/15/1994 | EP0601888A2 Variable gain RF amplifier with linear gain control |
| 06/15/1994 | EP0601740A2 RF amplifier with linear gain control |
| 06/14/1994 | US5321852 Circuit and method for converting a radio frequency signal into a baseband signal |
| 06/14/1994 | US5321851 Radio receiver comprising automatic gain controlling function |
| 06/14/1994 | US5321849 System for controlling signal level at both ends of a transmission link based on a detected valve |
| 06/14/1994 | US5321746 Adjustable gain range current mirror |
| 06/08/1994 | EP0600802A1 RF generator with variable and regulated output power |
| 06/08/1994 | EP0600637A1 System for distributed digital receiver gain control |
| 06/08/1994 | EP0600252A1 RF power amplifier control |
| 06/08/1994 | CN1024976C Converting and voltage compensation of receiver |
| 06/07/1994 | US5319804 Transmitter with nonlinearity correction circuits |
| 06/07/1994 | US5319704 Control circuit for voltage controlled attenuator for speakerphones |
| 06/07/1994 | US5319345 Variable resistor |
| 06/07/1994 | US5319318 Gain control circuit and semiconductor device |
| 06/07/1994 | CA2060689C Optical control circuit for a microwave monolithic integrated circuit |
| 06/01/1994 | CN1024881C Pulse series signal radiancy control of receiver |
| 05/31/1994 | US5317641 Fader depth control apparatus |
| 05/31/1994 | US5317558 Electronic volume varying apparatus restricted by muting mode |
| 05/31/1994 | US5317470 Control system including a switching circuit for ensuring proper operation when operating power is removed from a portion of the control system |
| 05/31/1994 | US5317401 Apparatus for providing contrast and/or brightness control of a video signal |
| 05/31/1994 | CA2041734C Automatic output power controller |
| 05/26/1994 | DE4236386C1 Monitoring FM radio transmitter - detecting mean power level of modulation multiplex signal to prevent over-modulation |
| 05/25/1994 | EP0598440A1 Signal strength adapter circuit |
| 05/24/1994 | US5315662 Karaoke equipment |
| 05/24/1994 | US5315268 Audio power amplifier |
| 05/24/1994 | US5315230 Temperature compensated voltage reference for low and wide voltage ranges |
| 05/24/1994 | CA2027495C Procedure and apparatus for amplification of a burst signal |
| 05/18/1994 | EP0597525A1 Device for detecting pulsatory interference signals |
| 05/18/1994 | EP0597448A1 The apparatus for adjusting the efficiency of electric power amplification |
| 05/17/1994 | US5313523 Sound volume controlling apparatus |
| 05/17/1994 | US5313172 Digitally switched gain amplifier for digitally controlled automatic gain control amplifier applications |
| 05/11/1994 | EP0449823A4 Improved variolosser |
| 05/10/1994 | US5311181 Digital noise shaper circuit |
| 05/10/1994 | US5311179 Method for amending the effect of offset voltage variations from the output voltage in a D/A converter |