| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 02/25/2004 | EP1391996A2 Amplitude limiting circuit and CDMA communication apparatus |
| 02/25/2004 | CN1478327A 接收机 Receiver |
| 02/25/2004 | CN1478322A Adjustment of bias current in first integrated circuit based on signal gain of second integrated circuit |
| 02/25/2004 | CN1140143C Demodulator circuit and demodulation method of radio receiving equipment |
| 02/25/2004 | CN1140061C Radio communication device and emitting power control method for radio communication device |
| 02/25/2004 | CN1140049C Equipment and method for controlling transmitting electric power |
| 02/24/2004 | US6697612 Receiving section of a telephone |
| 02/24/2004 | US6697492 Digital signal processing acoustic speaker system |
| 02/24/2004 | US6696893 Extended range variable gain amplifier |
| 02/24/2004 | US6696892 Large dynamic range programmable gain attenuator |
| 02/19/2004 | WO2004015860A2 Ring triggered mute |
| 02/19/2004 | WO2004015859A2 Variable gain amplifier with improved control characteristics linearity |
| 02/19/2004 | WO2004015855A1 Volume adjustment device, digital amplifier, and digital signal reproducing device |
| 02/19/2004 | WO2004015697A1 Optical disk system with non-linearly controlled amplifier |
| 02/19/2004 | WO2004014501A2 Gaming machine with automatic sound level adjustment and method therefor |
| 02/19/2004 | WO2004006452B1 A control system for controlling an output signal power level of a wireless transmitter |
| 02/19/2004 | US20040033790 Signal level control |
| 02/19/2004 | US20040032238 Smoothing circuit |
| 02/19/2004 | CA2493991A1 Gaming machine with automatic sound level adjustment and method therefor |
| 02/18/2004 | EP0651925B1 Frequency hopping time-diversity communications systems and transceivers for local area networks |
| 02/18/2004 | CN1476679A Self-tuned millimeter wave RF transceiver module |
| 02/18/2004 | CN1139183C Power amplifier and control circuit thereof |
| 02/18/2004 | CN1139182C High frequency variable gain amplifier device and wireless communication terminal |
| 02/17/2004 | US6694130 System and method for dynamically varying operational parameters of an amplifier |
| 02/17/2004 | US6693490 Adjustable gain control system and method thereof |
| 02/17/2004 | US6693488 Apparatus and method for a fast bandwidth switching circuit in a power amplifier control circuit |
| 02/17/2004 | CA2218806C Phaselock threshold correction |
| 02/12/2004 | WO2004013961A1 Gain-controlled amplifier, receiver circuit and radio communication device |
| 02/12/2004 | WO2004013957A2 Circuit for power amplification |
| 02/12/2004 | WO2003088684A3 Device and method for cdma-signal power estimation |
| 02/12/2004 | WO2003075396A3 System and method for antenna diversity using joint maximal ratio combining |
| 02/12/2004 | WO2003047098A3 Method for determining the signal strength at the input of a tuner |
| 02/12/2004 | WO2003044949A3 A communication semiconductor integrated circuit device and a wireless communication system |
| 02/12/2004 | WO2003001689A3 Wireless signal amplification system and a television signal decoder comprising one such system |
| 02/12/2004 | WO2002101944A3 Power amplifier control |
| 02/12/2004 | WO2002095931A3 Calibrated power amplifier module |
| 02/12/2004 | WO2002084864A3 Communications signal amplifiers having independent power control and amplitude modulation |
| 02/12/2004 | US20040029637 Gaming machine with automatic sound level adjustment and method therefor |
| 02/12/2004 | US20040029539 Receiver |
| 02/12/2004 | US20040029537 Apparatus and method for optimizing the level of rf signals based upon the information stored on a memory |
| 02/12/2004 | US20040028243 Multi-channel pulse width modulation apparatus |
| 02/12/2004 | US20040028236 Time and frequency windowed pocket cardiac stethoscope |
| 02/12/2004 | US20040027490 Ring triggered mute |
| 02/11/2004 | EP1388943A1 Multi-channel pulse width modulation apparatus |
| 02/11/2004 | EP1388937A2 Adaptive RF amplifier prelimiter |
| 02/11/2004 | EP1388936A2 Method of adjustment for receiver of signals transmitted in bursts and corresponding receivers |
| 02/11/2004 | EP1388205A2 Device and method for regulating the output power of mobile radio telephone stations |
| 02/11/2004 | CN1475056A Automatic gain control for time division duplex receiver |
| 02/11/2004 | CN1475044A Variable gain amplifier of low power consumption |
| 02/11/2004 | CN1138344C Method and apparatus for automatic gain control |
| 02/11/2004 | CN1138340C Current-type step gain controller circuit for digital technology |
| 02/11/2004 | CN1138339C Variable output amplifier apparatus |
| 02/10/2004 | US6690925 Portable telephone capable of increasing facility of operation |
| 02/10/2004 | US6690922 Radio frequency (RF) system loss compensation method using power measurement of pulsed RF source |
| 02/10/2004 | US6690805 Audio signal noise reduction system |
| 02/10/2004 | US6690793 Click free mute switch circuit for telephones |
| 02/10/2004 | US6690790 Receiving section of a telephone with suppression of interference upon switching on/off |
| 02/10/2004 | US6690237 High frequency power amplifier, and communication apparatus |
| 02/10/2004 | US6690236 Gain variable amplifier |
| 02/10/2004 | US6690232 Variable gain amplifier |
| 02/10/2004 | US6690231 Gain stage that minimizes the miller effect |
| 02/10/2004 | US6690225 DC offset cancel circuit |
| 02/05/2004 | WO2004012422A2 Voice controlled system and method |
| 02/05/2004 | WO2004012410A1 Background updates for database information on a mobile device |
| 02/05/2004 | WO2004012329A1 Gain-variable amplifier |
| 02/05/2004 | WO2003081768A3 Improving the efficiency of power amplifiers in devices using transmit beamforming |
| 02/05/2004 | WO2003019775A3 Audio processing device |
| 02/05/2004 | WO2003017477A3 Method and apparatus for protecting devices in an rf power amplifier |
| 02/05/2004 | US20040022334 Digital iterative gain control |
| 02/05/2004 | US20040022004 Semiconductor integrated circuit device, wireless LAN system, and auto gain control system |
| 02/05/2004 | US20040021513 Amplifier circuit |
| 02/05/2004 | US20040021508 System and method for activating gain stages in an amplification module |
| 02/05/2004 | DE19723086B4 Amplitudensteuersystem mit parallelen integrierenden Signalwegen Amplitude control system with integrated parallel signal paths |
| 02/05/2004 | DE10325428A1 Signalverarbeitungssystem und zugehöriges Verfahren Signal processing system and method thereof |
| 02/05/2004 | DE10230919A1 High frequency radio transmitter operating method, for linearized amplifier system, controlling amplifier voltage supply according to measured modulation envelope |
| 02/04/2004 | EP1387485A1 Circuit for power amplification |
| 02/04/2004 | EP1386405A2 High-quality power ramping in a communications transmitter |
| 02/04/2004 | EP1386392A2 Method for regulating the amplification of a high-frequency signal |
| 02/04/2004 | CN1473395A System for closed loop power control using linear or non-linear power amplifier |
| 02/03/2004 | US6687492 System and method for antenna diversity using joint maximal ratio combining |
| 02/03/2004 | US6687491 Direct conversion of low power high linearity receiver |
| 02/03/2004 | US6687489 Implementing RF power measurements in a broadband communications device |
| 02/03/2004 | US6687105 Thermal compensation method and device for circuits with temperature-dependent current sensing elements |
| 02/03/2004 | US6686799 Burst mode limiter-amplifier |
| 02/03/2004 | CA2088813C Automatic level control circuit for dual mode analog/digital cellular telephone |
| 01/29/2004 | US20040017866 High-frequency signal receiver |
| 01/29/2004 | US20040017865 Multi-stage automatic gain control for spread-spectrum receivers |
| 01/29/2004 | US20040017254 Automatic gain control device |
| 01/29/2004 | DE10329609A1 Bedienelement mit einstellbarer Selektivität Control panel with adjustable selectivity |
| 01/29/2004 | DE10231181A1 Verstärkerschaltung mit einstellbarer Verstärkung und Sendeanordnung mit der Verstärkerschaltung Amplifier circuit with adjustable gain and transmitter arrangement having the amplifier circuit |
| 01/28/2004 | EP1384314A2 Frequency conversion by undersampling |
| 01/28/2004 | CN1471745A Method and device for regulating the power of millimeter waves for a v-band TR modoule |
| 01/28/2004 | CN1471228A Electronic volume regulator and measuring method thereof |
| 01/28/2004 | CN1136714C Method for controlling gain of transmitting signal |
| 01/28/2004 | CN1136702C Transmission apparatus |
| 01/28/2004 | CN1136682C Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel |
| 01/28/2004 | CN1136665C Programmable linear receiver and method for providing programmable linear in receiver |
| 01/27/2004 | US6684064 Dynamic bias for RF power amplifiers |
| 01/27/2004 | US6683925 Wireless terminal device |
| 01/27/2004 | US6683498 Protection circuit for extending headroom with off-chip inductors |