| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 06/16/2005 | WO2005055420A1 Constant sound level |
| 06/16/2005 | WO2005055419A1 Gain-variable voltage/current converting circuit having current compensating circuit for compensating for variation of dc current flowing through active element that performs voltage/current conversion |
| 06/16/2005 | WO2005055416A1 Photo-receiving pre-amplifier |
| 06/16/2005 | WO2004093314B1 System, method, and circuit for dynamic range enhancement in a communication system |
| 06/16/2005 | US20050130617 Variable-gain low noise amplifier for digital terrestrial applications |
| 06/16/2005 | US20050130615 Programmable gain amplifier (PGA) with AGC in receiver section |
| 06/16/2005 | US20050130595 Power control device and method for calibrating the power of a transmitter or receiver in a mobile communication network |
| 06/16/2005 | US20050129151 Wireless receiving device suppressing occurrence of reception error |
| 06/16/2005 | US20050129150 AGC system, AGC method, and receiver using the AGC system |
| 06/16/2005 | US20050128007 Preamplifier circuit, clock switching circuit, and optical receiver |
| 06/16/2005 | US20050127994 Wireless Output Chip With Power Detector And Related Manufacturing Method |
| 06/16/2005 | US20050127993 Automatic gain control for a multi-stage gain system |
| 06/16/2005 | DE10350628A1 Loss-of-signal detector for integrated signal processing circuit, has gain control input to set adjustable gain amplifier`s gain to lower and higher values if loss-of-signal indication signal is active and not active, respectively |
| 06/16/2005 | CA2546893A1 Programmable automatic gain control according to transmission protocols |
| 06/15/2005 | EP1542358A1 AGC system, AGC method, and receiver using the AGC system |
| 06/15/2005 | EP1542357A1 A power amplifier module and a time division multiple access radio |
| 06/15/2005 | EP1540646A2 Voice controlled system and method |
| 06/15/2005 | CN1628412A Variable impedance load for a variable gain radio frequency amplifier |
| 06/15/2005 | CN1627669A Optical receiver and data communication apparatus comprising same |
| 06/15/2005 | CN1627634A AGC system, AGC method, and receiver using the AGC system |
| 06/15/2005 | CN1627631A Power source circuit for high frequency power amplifying circuit and semiconductor integrated circuit for power source and electronics component for power source |
| 06/15/2005 | CN1206801C Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation |
| 06/14/2005 | US6907202 Burst signal detection circuit |
| 06/14/2005 | US6906592 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
| 06/14/2005 | US6906584 Switchable gain amplifier having a high-pass filter pole |
| 06/09/2005 | WO2005053171A1 Automatic gain control device |
| 06/09/2005 | WO2005053150A2 An operational amplifier selecting one of inputs, and an amplifying apparatus using the op amplifier the verification method |
| 06/09/2005 | US20050125088 Audio volume control for computer systems |
| 06/09/2005 | US20050124308 Radio receiver |
| 06/09/2005 | US20050123307 Optical receiver and data communication apparatus comprising same |
| 06/09/2005 | US20050123128 Gain control |
| 06/09/2005 | US20050123072 Method and apparatus to implement DC offset correction in a sigma delta converter |
| 06/09/2005 | US20050122171 Power source circuit for high frequency power amplifying circuit and semiconductor integrated circuit for power source and electronics component for power source |
| 06/09/2005 | US20050122167 Power amplifier module for wireless communication devices |
| 06/09/2005 | US20050122166 Adaptive transmit power control system |
| 06/09/2005 | US20050122162 Volume adjustment device, digital amplifier, and digital signal reproducing device |
| 06/09/2005 | DE19901461B4 Integrierbare Schaltung zur automatischen Verstärkungsregelung (AGC; Automatic Gain Control) Integrable circuit for automatic gain control (AGC; Automatic Gain Control) |
| 06/09/2005 | DE10350597A1 Control method for amplitudes in an oscillatory signal (OS) generated by quartz crystal compares the OS with a constant reference signal while regulating a control signal via a control circuit |
| 06/09/2005 | DE102004009037A1 Process for converting optical pulses into electrical pulses produces a light dependent current pulse train and uses three sequential voltage trains to generate the output |
| 06/08/2005 | EP1538751A2 Tuning circuit with amplitude attenuation function and integrated circuit for radio communication apparatus |
| 06/08/2005 | EP1538745A2 A mobile communication terminal apparatus, a variable gain amplifier circuit and a gain control circuit |
| 06/08/2005 | EP1538744A1 Gain-controlled amplifier, receiver circuit and radio communication device |
| 06/08/2005 | EP1413064B1 Device and method for offset calibration of the power control signal of radio devices |
| 06/08/2005 | EP1330885B1 Signal strength compensation for mobile radio channels that considerably vary with time |
| 06/08/2005 | CN1625061A 发射机 Transmitter |
| 06/08/2005 | CN1624778A RF circuit for minidisc regeneration apparatus |
| 06/08/2005 | CN1624656A System and method for implementing a flat audio volume control model |
| 06/07/2005 | US6904292 Base station having an adaptive RF amplifier prelimiter |
| 06/07/2005 | US6904274 System and method for inverting automatic gain control (AGC) and soft limiting |
| 06/07/2005 | US6904273 Method and system for automatic gain control in a satellite communications system |
| 06/07/2005 | US6904271 High-frequency-signal switching circuit suppressing high-frequency-signal distortion |
| 06/07/2005 | US6904267 Amplifying device |
| 06/07/2005 | US6903611 Automatic gain control device |
| 06/02/2005 | WO2005050870A1 Receiving apparatus and receiving method |
| 06/02/2005 | WO2005050834A1 Am intermediate frequency variable gain amplifier circuit, variable gain amplifier circuit, and semiconductor integrated circuit thereof |
| 06/02/2005 | WO2005018106A3 Radio transmitter with accurate power control |
| 06/02/2005 | WO2004112384A3 Digital broadcast receiver |
| 06/02/2005 | US20050118972 RF circuit for disc playing apparatus |
| 06/02/2005 | US20050118971 High frequency amplifier circuit permitting variable gain control |
| 06/02/2005 | US20050117758 Audio outputting apparatus and audio outputting method |
| 06/02/2005 | US20050117757 Sound signal processing device and sound signal processing method |
| 06/02/2005 | US20050117489 Data reproduction device |
| 06/02/2005 | US20050116774 Method and system for implementing autonomous automatic gain control in a low noise broadband distribution amplifier |
| 06/01/2005 | EP1536637A1 Audio outputting method and apparatus |
| 06/01/2005 | EP1535437A1 Background updates for database information on a mobile device |
| 06/01/2005 | EP1535397A1 Audio system with balance setting based on information addresses |
| 06/01/2005 | EP1041728B1 Spread-spectrum system and method |
| 06/01/2005 | CN1623287A Power control device and method for calibrating the power of a transmitter or receiver in a mobile communication network |
| 06/01/2005 | CN1623282A Communication apparatus |
| 06/01/2005 | CN1623281A High-frequency power amplifier circuit and electronic part for communication |
| 06/01/2005 | CN1623274A RF output power control |
| 06/01/2005 | CN1622468A A signal processing method and apparatus |
| 06/01/2005 | CN1622451A Audio outputting apparatus and audio outputting method |
| 05/31/2005 | US6901149 Audio mixer |
| 05/31/2005 | US6900694 High frequency power amplifier module and wireless communication apparatus |
| 05/31/2005 | US6900671 Current-voltage conversion circuit |
| 05/31/2005 | CA2154876C Average rf exposure control |
| 05/26/2005 | WO2005048644A2 System and method for controlling audio output |
| 05/26/2005 | WO2005048627A1 Transmission device and gain control method |
| 05/26/2005 | WO2005048473A1 Adaptive interference immunity control |
| 05/26/2005 | US20050113046 System and method for RF gain control |
| 05/26/2005 | US20050111675 Audio/video device having a volume control function for an external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor |
| 05/26/2005 | US20050111401 Tracking automatic gain control |
| 05/26/2005 | US20050110571 Variable gain amplifier |
| 05/26/2005 | US20050110566 Method and apparatus for automatic gain control |
| 05/25/2005 | EP1533909A1 Apparatus and method for enhancing a reception rate of a receiver |
| 05/25/2005 | EP1533894A1 Semiconductor integrated circuit and semiconductor integrated circuit manufacturing method |
| 05/25/2005 | EP1532734A2 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound |
| 05/25/2005 | DE4421694B4 Schaltungsanordnung für ein Autoradio zur Erzeugung kurzzeitiger Stummschaltimpulse Circuit arrangement for a car radio to generate short-term mute pulses |
| 05/25/2005 | CN1620751A Voice enhancement system |
| 05/25/2005 | CN1620750A Method and apparatus for controlling an amplifier |
| 05/25/2005 | CN1620086A 增益控制 Gain Control |
| 05/25/2005 | CN1619972A Apparatus and method for enhancing a reception rate of a receiver with AGC |
| 05/25/2005 | CN1619951A Automotive audio controller with vibration sensor |
| 05/25/2005 | CN1619950A Variable amplifier and mobile wireless terminal using same |
| 05/25/2005 | CN1203617C HF signal receiving device |
| 05/24/2005 | US6897732 Amplifier |
| 05/24/2005 | US6897730 Method and apparatus for controlling the output power of a power amplifier |
| 05/24/2005 | US6897725 Class D amplifier |
| 05/21/2005 | CA2475693A1 Gain control |