Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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10/07/2004 | WO2004045065A3 Accurate power detection for a multi-stage amplifier |
10/07/2004 | US20040198301 Power amplifier control driver having over-current protection and linear control |
10/07/2004 | US20040198300 Radio wave reception device, radio wave clock, and repeater |
10/07/2004 | US20040198286 Signal gain adjustment within an RF integrated circuit |
10/07/2004 | US20040198285 Tuning circuit having amplitude-varying function |
10/07/2004 | US20040198284 Digital high frequency power detection circuit |
10/07/2004 | US20040198272 Automatic power level control circuit for a transceiver device |
10/07/2004 | US20040198271 Envelope-tracking amplifier for improving gain, Method for improving efficiency thereof, and terminal device of mobile communication applied to the same |
10/07/2004 | US20040198270 Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier |
10/07/2004 | US20040198262 Integrated RF signal level detector usable for automatic power level control |
10/07/2004 | US20040198257 Communication semiconductor integrated circuit, a wireless communication apparatus, and a loop gain calibration method |
10/07/2004 | US20040198252 Apparatus for transmitting RF signal in mobile communication terminal and method for controlling the same |
10/07/2004 | US20040198067 Fabrication process of a semiconductor integrated circuit device |
10/07/2004 | US20040196931 Automatic gain control method and apparatus in communication system having discontinuous transmission mode |
10/07/2004 | US20040196088 Exponential conversion circuit and variable gain circuit |
10/06/2004 | CN1534907A Receiver for receiving time division signal |
10/06/2004 | CN1534867A Low noise amplifier possessing switch control gain |
10/06/2004 | CN1534626A Method and device used for controlling record power level |
10/05/2004 | US6801868 Real time calibration method for signal conditioning amplifiers |
10/05/2004 | US6801784 Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier |
10/05/2004 | US6801085 System and method for activating gain stages in an amplification module |
10/05/2004 | US6801082 Power amplifier circuit and method using bandlimited signal component estimates |
09/30/2004 | WO2004084460A2 Enhanced automatic gain control mechanism for timeslotted data transmissions |
09/30/2004 | WO2004045071A3 Gain control in a wireless device |
09/30/2004 | WO2003105386A3 Digital video broadcast-terrestrial (dvb-t) receiver interoperable with a gsm transmitter in a non-interfering manner |
09/30/2004 | US20040193422 Compensating for ambient noise levels in text-to-speech applications |
09/30/2004 | US20040192408 Battery life extending technique for mobile wireless applications using bias level control |
09/30/2004 | US20040192247 RF power control system including watchdog circuit |
09/30/2004 | US20040192245 AM receiver and demodulator |
09/30/2004 | US20040192237 Feedforward amplifier and radio communication apparatus with the amplifier |
09/30/2004 | US20040192236 Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system |
09/30/2004 | US20040190659 Method and apparatus for signal noise control |
09/30/2004 | US20040190654 Receiving apparatus |
09/30/2004 | US20040190653 Reception apparatus for receiving time-division signal |
09/30/2004 | US20040190649 Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver |
09/30/2004 | US20040190602 Transmitting a spread signal having an adjustable spread sepctrum |
09/30/2004 | US20040189393 Collective automatic gain control |
09/30/2004 | US20040189383 Automatic gain control method and device |
09/30/2004 | US20040189382 Gain control methods and systems in an amplifier assembly |
09/30/2004 | US20040189050 Deployable rigid system for crash energy management |
09/30/2004 | CA2518476A1 Enhanced automatic gain control mechanism for timeslotted data transmissions |
09/29/2004 | EP1463197A1 A device and method for measuring dependency of output power and for generating a ramp signal for a power amplifier |
09/29/2004 | CN1533134A Microphone gains regulator of communication device and controller of speaker distortion |
09/29/2004 | CN1533029A Receiver |
09/29/2004 | CN1169307C Receiving power electrical level computing circuit and receiver using said circuit |
09/29/2004 | CN1169306C Signal level adjustment arrangement |
09/29/2004 | CN1169305C Emission power detecting apparatus and launching unit |
09/29/2004 | CN1169288C Electronic volume circuit |
09/28/2004 | US6798287 Radio frequency power amplifier module integrated with a power control hoop |
09/28/2004 | US6798286 Gain control methods and systems in an amplifier assembly |
09/28/2004 | US6798283 Gigabit ethernet transceiver with analog front end |
09/28/2004 | CA2425088A1 Automatic sound level controller |
09/23/2004 | WO2004082321A2 Multi-channel digital feedback reducer system |
09/23/2004 | WO2004082136A1 Automatic gain control system and method for a zif architecture |
09/23/2004 | WO2004082135A2 Closed loop power control of non-constant envelope waveforms using sample/hold |
09/23/2004 | WO2004082134A1 Automatic gain control with two power detectors |
09/23/2004 | WO2004081957A2 Single tone detection and adaptive gain control for direct conversion receivers |
09/23/2004 | WO2004062088A3 Power amplifier circuit and method using bandlimited signal component estimates |
09/23/2004 | WO2004040795A3 An integrated rf signal level detector usable for automatic power level control |
09/23/2004 | US20040185896 Controlled processing of audio and command data in a digital cordless telephone |
09/23/2004 | US20040185814 Attenuator with switch function and mobile telephone terminal device using the same |
09/23/2004 | US20040185810 Automatic gain controller |
09/23/2004 | US20040185809 Method for adjusting the amplification of a high frequency signal |
09/23/2004 | US20040185807 Dynamically varying linearity system for an RF front-end of a communication device |
09/23/2004 | US20040184621 Clip detection in PWM amplifier |
09/23/2004 | US20040184569 Digital voltage gain amplifier for zero if architecture |
09/23/2004 | US20040183953 Automatic level control (ALC) |
09/23/2004 | US20040183911 Digital TV receiving smart antenna control system and controlling method of the same |
09/23/2004 | US20040183599 Variable impedance circuit, variable gain differential amplifier, multiplier, high-frequency circuit and differential distributed amplifier |
09/23/2004 | US20040183596 Communication system and arrangements comprising such a communication system |
09/23/2004 | US20040183592 Feedback network and amplifier and/or converter circuit with a feedback network |
09/23/2004 | US20040183579 Output control apparatus of pulse width modulator |
09/22/2004 | EP1460778A2 Transmit power control |
09/22/2004 | EP1382114B1 Circuit arrangement and method for adjusting the operating point of a power amplifier |
09/22/2004 | EP1260017B1 Method and transmission circuit for producing a transmission signal |
09/22/2004 | CN1531774A Quardrature direct-conversion demodolator using DC offset compensation |
09/22/2004 | CN1531197A Automatic gain controlling circuit |
09/22/2004 | CN1531196A 可变增益放大电路 A variable gain amplifying circuit |
09/22/2004 | CN1168257C Automatic gain control for improved decoding of multi-carrier signal |
09/22/2004 | CN1168225C Radio apparatus and gain control circuit |
09/22/2004 | CN1168207C Method and apapratus for automatically adjusting speaker and microphone gains within mobile telephone |
09/22/2004 | CN1168206C Method and circuit of controlling baseband gain |
09/21/2004 | US6795740 Rectifying overflow and underflow in equalized audio waveforms |
09/21/2004 | US6795712 System for allowing a TDMA/CDMA portable transceiver to operate with closed loop power control |
09/21/2004 | US6795694 Automatic gain control system |
09/21/2004 | US6795656 Optical transmission circuit using a semiconductor laser |
09/21/2004 | US6794935 Power amplification circuit and method for supplying power at a plurality of desired power output levels |
09/16/2004 | WO2004080035A2 Transceiver power detection architecture |
09/16/2004 | WO2004079900A1 Method and apparatus for controlling the output power of a power amplifier |
09/16/2004 | WO2004079899A1 Communication terminal device and amplification circuit |
09/16/2004 | US20040180686 Transmission output circuit and mobile communication terminal |
09/16/2004 | US20040179701 Dynamic volume adjustment in a slot machine |
09/16/2004 | US20040179694 Safety apparatus for audio device that mutes and controls audio output |
09/16/2004 | US20040179635 Operating point independent digital automatic level control |
09/16/2004 | US20040179387 Multi-channel digital feedback reducer system |
09/16/2004 | US20040178851 AGC circuit |
09/16/2004 | US20040178847 Method and system for monitoring a deliverable radio frequency power of an amplifier operable on a monolithic microwave integrated circuit |
09/16/2004 | DE10308923A1 Schaltungsanordnung und Verfahren zur Kompensation von Signalpegelsprüngen in Verstärkungseinrichtungen Circuit arrangement and method for compensating signal level jumps in amplification devices |
09/16/2004 | DE10308644A1 Verstärkerschaltung mit geregelter Leistung und Verfahren zur Leistungsverstärkung Amplifier circuit with controlled output, and method for power amplification |
09/16/2004 | DE10230168B9 Pegelumsetz-Einrichtung Pegelumsetz device |