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