| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 04/11/2007 | CN1310424C Method for optimizing the level of RF signals based upon the information stored on a memory |
| 04/10/2007 | US7203471 System and method for selectively utilizing an attenuation device in a two-way radio receiver based on squelch detect and radio signal strength indication (RSSI) |
| 04/10/2007 | US7203325 Audio processing device |
| 04/10/2007 | US7203321 Device for electroacoustic sound generation in a motor vehicle |
| 04/10/2007 | US7203320 Sub-harmonic generator and stereo expansion processor |
| 04/10/2007 | US7202742 Digital amplification device |
| 04/10/2007 | US7202736 CDMA power amplifier design for low and high power modes |
| 04/10/2007 | US7201996 Sound generator for a portable device |
| 04/05/2007 | WO2007037971A1 Controlling power output of a transceiver |
| 04/05/2007 | US20070078551 Sound effect adjustment system and method of the same |
| 04/05/2007 | US20070077894 Automatic gain control with two power detectors |
| 04/05/2007 | US20070076905 Audio output apparatus |
| 04/05/2007 | US20070075767 Inductor element containing circuit board and power amplifier module |
| 04/05/2007 | US20070074621 Method and apparatus to generate spatial sound |
| 04/05/2007 | DE19710474B4 Übertragungsleistungserfassungsschaltung zum Erfassen einer Übertragungsleistung eines Funksignals Transmission power detecting circuit for detecting a transmission power of a radio signal |
| 04/05/2007 | DE102005047172A1 Circuit configuration having a feedback operational amplifier |
| 04/04/2007 | EP1770856A1 Programmable digital gain circuit and corresponding method |
| 04/04/2007 | EP1604457B1 Automatic gain control with two power detectors |
| 04/04/2007 | CN1941757A Programmable digital gain circuit and corresponding method |
| 04/04/2007 | CN1941620A Method for removing loundspeaker noise |
| 04/04/2007 | CN1941619A Volume management system and method |
| 04/04/2007 | CN1941618A Volume management system and method |
| 04/04/2007 | CN1941617A Voltage-adjusting amplifier for signal processing system |
| 04/03/2007 | US7200239 Acoustic apparatus having balance adjustment |
| 04/03/2007 | US7199664 Integrated switchless programmable attenuator and low noise amplifier |
| 04/03/2007 | US7199660 Variable gain amplifier |
| 03/29/2007 | US20070071249 System for the simulation of a room impression and/or sound impression |
| 03/29/2007 | US20070070256 Broadcast receiving device and broadcast receiving method |
| 03/29/2007 | US20070069817 Adaptable voltage control for a variable gain amplifier |
| 03/29/2007 | US20070069812 Input/output signals preserver circuit of amplification circuits |
| 03/29/2007 | DE102006016308A1 Signalverarbeitungsschaltung für eine analoge Eingabe Signal processing circuit for an analog input |
| 03/28/2007 | EP1766775A2 An rf power amplifier system having a plurality of different power control modes |
| 03/28/2007 | EP1766610A1 Method of evaluating perception intensity of an audio signal and a method of controlling an input audio signal on the basis of the evaluation |
| 03/28/2007 | EP1712000A4 Staggered agc with digitally controlled vga |
| 03/28/2007 | EP1512230B1 Digital video broadcast-terrestrial (dvb-t) receiver interoperable with a gsm transmitter in a non-interfering manner |
| 03/28/2007 | CN1939093A Fader device |
| 03/28/2007 | CN1939089A Sound volume control circuit, semiconductor integrated circuit, and sound source device |
| 03/28/2007 | CN1938958A Am reception circuit |
| 03/28/2007 | CN1938956A Radio transmitter with reduced power consumption |
| 03/28/2007 | CN1938943A Method and system for ensuring audio safety |
| 03/28/2007 | CN1938942A Power amplifier unit, communication terminal and control method of power amplifier unit |
| 03/28/2007 | CN1938597A Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
| 03/28/2007 | CN1937403A Intelligent volume switching method for multimedia |
| 03/28/2007 | CN1307792C Method for adjusting gain of circuit element in transmitter |
| 03/28/2007 | CN1307787C Gain variable amplifier |
| 03/28/2007 | CN1307786C Power amplifying circuit and method for supplying power by multiple required power output level |
| 03/27/2007 | US7197325 Power control apparatus with PAM reference voltage tuner for a mobile terminal |
| 03/27/2007 | US7196583 Power control of a power amplifier |
| 03/27/2007 | US7196582 Method and system for low noise amplifier (LNA) and power amplifier (PA) gain control |
| 03/27/2007 | US7196580 Digital audio amplifier including phase lead-lag compensator for increasing self-oscillation frequency |
| 03/27/2007 | US7196579 Gain-controlled amplifier, receiver circuit and radio communication device |
| 03/27/2007 | US7196577 Amplifier with capacitor selection |
| 03/22/2007 | WO2007032550A1 Reception amplitude correction circuit, reception amplitude correction method, and receiver using the same |
| 03/22/2007 | WO2007031582A1 Audio dosage control |
| 03/22/2007 | WO2007031499A1 Method for attenuating interfering noise and corresponding hearing device |
| 03/22/2007 | US20070067090 Analog input signal processing circuit |
| 03/22/2007 | US20070064961 Audio control system and audio control method thereof |
| 03/22/2007 | US20070064957 System for reproducing sound |
| 03/22/2007 | US20070064956 Method and apparatus for extending band of audio signal using higher harmonic wave generator |
| 03/22/2007 | US20070063774 Method and apparatus for controlling the output power of a power amplifier |
| 03/22/2007 | US20070063768 AC amplifier and piezoelectri vibrator oscillator |
| 03/22/2007 | DE102006010149A1 Vorrichtung zur automatischen Einstellung der Amplitude eines Audiosignals auf der Grundlage einer Hintergrundumgebung Device for the automatic adjustment of the amplitude of an audio signal on the basis of a background environment |
| 03/22/2007 | DE102005044416A1 Hearing device e.g. hearing aid, has volume controller for manual adjustment of output signal level, and alterable switch, where controller and/or switch have optical touch sensor or movement sensor e.g. transmitter, receiver and window |
| 03/21/2007 | EP1764624A2 Transmitting-receiving module of radar system |
| 03/21/2007 | EP1763922A1 Amplifier circuit with automatic gain correction |
| 03/21/2007 | EP1733473A4 Method and system for ensuring audio safety |
| 03/21/2007 | EP1349267B1 Amplifier circuit for am broadcasing |
| 03/21/2007 | CN1934791A Signal processing circuit |
| 03/21/2007 | CN1306697C DC drift eliminator for grain-variable amplifier |
| 03/20/2007 | US7194244 Wireless communication receiver |
| 03/20/2007 | US7194242 Direct-conversion transmitter circuit and transceiver system |
| 03/20/2007 | US7194049 Digital automatic level control system |
| 03/20/2007 | US7193533 Operating element with settable selectivity |
| 03/20/2007 | US7193471 High frequency power amplifier circuit and radio communication system |
| 03/20/2007 | US7193470 Method and apparatus for controlling a power amplifier in a mobile communication system |
| 03/20/2007 | US7193465 Variable gain amplifier capable of functioning at low power supply voltage |
| 03/20/2007 | US7193460 Circuit for controlling power amplifier quiescent current |
| 03/20/2007 | US7193459 Power amplifier control technique for enhanced efficiency |
| 03/15/2007 | US20070058828 Hearing aid |
| 03/15/2007 | US20070057729 Power amplifier and wireless communication device |
| 03/15/2007 | US20070057728 Method and arrangement for adjusting an output impedance of a power amplifier |
| 03/15/2007 | US20070057664 Power detector for mismatched load |
| 03/15/2007 | DE102004020326B4 Wellenformeinstellsystem für eine Musikdatei Wellenformeinstellsystem for a music file |
| 03/14/2007 | CN1930786A Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuit |
| 03/14/2007 | CN1930784A Transmission device and radio communication device |
| 03/14/2007 | CN1929568A Tuner circuit and digital broadcast receiver with low distortion performance and low power consumption |
| 03/14/2007 | CN1929300A Apparatus and method to control audio volume in D class amplifier |
| 03/14/2007 | CN1929299A Method and device for automatic gain control with limited jitter |
| 03/14/2007 | CN1929298A Audio frequency processing system and method |
| 03/14/2007 | CN1929297A Audio frequency processing system and method |
| 03/13/2007 | US7190965 Apparatus and method for stabilization of the transmission power of radios |
| 03/13/2007 | US7190935 Amplifier power detection circuitry |
| 03/13/2007 | US7190934 Reflected power suppression circuit |
| 03/13/2007 | US7190795 Hearing adjustment appliance for electronic audio equipment |
| 03/13/2007 | US7190292 Input level adjust system and method |
| 03/13/2007 | US7190228 Gain control device of transmitter in mobile communication terminal and method thereof |
| 03/13/2007 | US7190221 Method and apparatus for maintaining constant linearity for a power amplifier over varying load conditions |
| 03/13/2007 | US7190219 Extended range variable-gain amplifier |
| 03/08/2007 | WO2007026699A1 Wireless communication system, wireless communication apparatus, amplification rate deciding method, and storing medium |
| 03/08/2007 | WO2007026278A1 Receiver having a gain-controllable stage |