| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 05/26/2004 | CN1499813A Circuit system setting up radio communication connection |
| 05/26/2004 | CN1151609C Method for improving signal needed in radio receiving unit |
| 05/25/2004 | US6741844 Receiver for audio enhancement and method therefor |
| 05/25/2004 | US6741127 High-frequency amplifier circuit and radio communication apparatus using same |
| 05/25/2004 | US6741125 High frequency power amplifier and wireless communication module |
| 05/21/2004 | WO2004042919A1 Method and apparatus for regulating the transmitted power in multi-rate wireless communication systems |
| 05/21/2004 | WO2004042880A1 Improvements in and relating to audio devices |
| 05/21/2004 | WO2004013957A3 Circuit for power amplification |
| 05/21/2004 | WO2003103109A3 Power amplifiers |
| 05/20/2004 | US20040097212 Direct conversion receiver and dc offset reducing method |
| 05/20/2004 | US20040097209 Automatic gain control apparatus and methods |
| 05/20/2004 | US20040097208 Am receiver with controllable rf input circuit |
| 05/20/2004 | US20040097205 Method and apparatus for automatic gain control of radio frequency communication system |
| 05/20/2004 | US20040096018 Automatic gain controller and controlling method thereof |
| 05/19/2004 | EP1419574A2 Power amplifier control |
| 05/19/2004 | EP1419571A1 Thermal compensation method and device for circuits with temperature-dependent current sensing elements |
| 05/19/2004 | DE10251188A1 Control circuit for audio amplifier in motor vehicle, has learning unit which detects functional relation between signal levels, and control unit which sets desired value accordingly |
| 05/19/2004 | DE10250613A1 Integrated radio frequency signal level analyzing circuit for controlling output power of transceiver device, has DC/AC converter to produce AC reference voltage corresponding to reference voltage from reference voltage source |
| 05/19/2004 | DE10250612A1 Automatic power level control circuit for sender receiver for wireless local networks and mobile phones has D/A converter and comparator unit with reference signal |
| 05/19/2004 | DE10250229A1 Leistungsregelung für Hochfrequenzverstärker Power control for high frequency amplifier |
| 05/19/2004 | CN1498457A Direct conversion receiver and DC offset reducing method |
| 05/19/2004 | CN1497996A High-frequency power amplifying electric unit and radio communication system |
| 05/19/2004 | CN1497880A Reverberation console |
| 05/19/2004 | CN1497838A Power amplifying circuit and method for supplying power by multiple required power output level |
| 05/19/2004 | CN1150673C Automatic gain controller and method, and communication device with automatic gain control function |
| 05/18/2004 | US6738173 Limiting amplifier modulator driver |
| 05/18/2004 | US6737920 Variable gain amplifier |
| 05/13/2004 | WO2004040795A2 An integrated rf signal level detector usable for automatic power level control |
| 05/13/2004 | WO2004040787A2 Low latency frequency switching |
| 05/13/2004 | WO2004030207A3 Variable gain amplifier |
| 05/13/2004 | US20040092238 Gain control in a wireless device |
| 05/13/2004 | US20040092237 Control system for controlling an output signal power level of a wireless transmitter |
| 05/13/2004 | US20040092236 Semiconductor integrated circuit device and wireless communication system |
| 05/13/2004 | US20040091124 Audio devices |
| 05/13/2004 | US20040091035 Active filter circuit with dynamically modifiable internal gain |
| 05/13/2004 | US20040090271 Variable gain amplifier for high frequency band using microstrip hybrid |
| 05/13/2004 | US20040090267 High-frequency power amplification electronic part and wireless communication system |
| 05/13/2004 | US20040090266 High frequency power amplifier apparatus and power amplifier module use the same |
| 05/12/2004 | EP1418791A2 Improvements in and relating to audio devices |
| 05/12/2004 | EP1418670A1 Power control for a high frequency amplifier |
| 05/12/2004 | EP1418669A2 Semiconductor integrated circuit device and wireless communication system |
| 05/12/2004 | EP1269655B1 Dynamic bias for rf power amplifiers |
| 05/12/2004 | EP1057256B1 Computer tomograph with a multi-stage charge-integrated read amplifier |
| 05/12/2004 | EP0743768B1 Device and method for multiplexing signal |
| 05/12/2004 | CN1496188A Multichannel pulsewidth modulator |
| 05/12/2004 | CN1496167A System for controlling antenna transmitting power |
| 05/12/2004 | CN1496015A Regulating method for signal receiver and relevant receiver |
| 05/12/2004 | CN1496014A 接收装置与增益控制方法 Gain control method for the receiving apparatus and |
| 05/12/2004 | CN1495070A Audio device with multiple selection function and sound signal controller |
| 05/12/2004 | CN1149901C Peak to peak signal detector for audio system |
| 05/12/2004 | CN1149897C Circuit, audio system and method for processing signals and harmonics generator |
| 05/11/2004 | US6735424 S-band low-noise amplifier with self-adjusting bias for improved power consumption and dynamic range in a mobile environment |
| 05/11/2004 | US6735423 Method and apparatus for obtaining optimal performance in a receiver |
| 05/11/2004 | US6735422 Calibrated DC compensation system for a wireless communication device configured in a zero intermediate frequency architecture |
| 05/11/2004 | US6734746 Mute circuit |
| 05/11/2004 | US6734730 Variable gain amplifier |
| 05/11/2004 | US6734729 Closed loop power amplifier control |
| 05/11/2004 | CA2319326C Automatic gain-controlled vhf/uhf antenna tuning apparatus |
| 05/06/2004 | WO2004038953A1 Apparatus and method for compensating gain of an automatic gain controller |
| 05/06/2004 | US20040087321 Circuitry to establish a wireless communication link |
| 05/06/2004 | US20040087292 Low latency frequency switching |
| 05/06/2004 | US20040087288 Implementing RF power measurements in a broadband communications device |
| 05/06/2004 | US20040087287 Automatic gain control system |
| 05/06/2004 | US20040087278 Circuitry to establish a wireless communication link |
| 05/06/2004 | US20040087275 System and method for antenna diversity using joint maximal ratio combining |
| 05/06/2004 | US20040085891 Method and system for reducing noise in a multi-carrier signal |
| 05/06/2004 | US20040085128 Gigabit ethernet transceiver with analog front end |
| 05/06/2004 | US20040085126 Accurate power detection for a multi-stage amplifier |
| 05/06/2004 | US20040085125 Gigabit ethernet transceiver with anjalog front end |
| 05/06/2004 | US20040085124 Gigabit ethernet transceiver with analog front end |
| 05/06/2004 | EP1416629A2 Method and system for reducing noise in a multi-carrier signal |
| 05/06/2004 | EP1415410A2 Power control for non-constant envelope modulation |
| 05/06/2004 | EP1415394A2 Communications signal amplifiers having independent power control and amplitude modulation |
| 05/06/2004 | CA2503353A1 Apparatus and method for compensating gain of an automatic gain controller |
| 05/05/2004 | CN1494763A Automatic gain control circuit with high linearity and monotonically correlated offset voltage |
| 05/05/2004 | CN1148870C Parallel-stage power amplifier and its method for amplifying signal |
| 05/05/2004 | CN1148718C Electronic sound source having reduced spurious sounding |
| 05/04/2004 | US6731916 Power amplifying apparatus for mobile phone |
| 05/04/2004 | US6731915 Combined RF power detector and power precorrector |
| 05/04/2004 | US6731703 Reception power level calculating circuit and receiver using the same |
| 05/04/2004 | US6731167 High frequency power amplifier module and wireless communication apparatus |
| 05/04/2004 | US6731160 Adjustable bandwidth high pass filter for large input signal, low supply voltage applications |
| 05/04/2004 | CA2126525C Signal processing circuit including a variable gain input stage |
| 04/29/2004 | WO2004036775A1 Automatic-bias amplifier circuit |
| 04/29/2004 | WO2004036742A1 Radio wave reception device, radio wave clock, and repeater |
| 04/29/2004 | WO2003075452A3 Method of adjusting gain and current consumption of a power amplifier circuit while maintaining linearity |
| 04/29/2004 | WO2003063345A3 Dual gain amplification low noise amplifier |
| 04/29/2004 | US20040083409 Fast closed-loop power control for non-constant envelope modulation |
| 04/29/2004 | US20040082354 System and method for boosting signals in a cellular phone base station |
| 04/29/2004 | US20040080366 Variable gain amplifier |
| 04/29/2004 | US20040080044 Hybrid integrated circuit device and method for fabricating the same and electronic device |
| 04/28/2004 | EP1414172A1 Automatic gain controlling device and method, and radio communication device |
| 04/28/2004 | EP1414161A1 Receiver |
| 04/28/2004 | EP1413064A2 Device and method for offset calibration of the power control signal of radio devices |
| 04/28/2004 | EP1413053A2 Power amplifier system having frequency and amplifier failure compensation |
| 04/28/2004 | EP1338088B1 Signal level control |
| 04/28/2004 | EP1138115B1 Amplitude modulation to phase modulation cancellation method in an rf amplifier |
| 04/28/2004 | EP0801857B1 Method for substituting bad speech frames in a digital communication system |
| 04/28/2004 | CN1493108A Amplifier apparatus and receiver |
| 04/28/2004 | CN1493106A Amplication systems and methods usnig fixed and modulated power supply voltages and buck-boost control |