| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 05/15/2007 | US7218865 Burst-mode optical receiver of differential output structure |
| 05/15/2007 | US7218695 Method and device for acquiring an estimated value dependent on the maximum of a single-frequency signal |
| 05/15/2007 | US7218172 Apparatus and method for controlling adaptive circuits |
| 05/10/2007 | WO2007052456A1 Am receiving apparatus and am receiving method |
| 05/10/2007 | US20070106941 System and method of providing audio content |
| 05/10/2007 | US20070104493 Optical receiver preamplifier |
| 05/10/2007 | US20070104337 Apparatus and method for automatic volume synchronization of a digital audio device with an analog audio source |
| 05/10/2007 | US20070103238 Method and apparatus for protecting devices in an rf power amplifier |
| 05/10/2007 | US20070103233 Apparatus for optimizing gate bias of radio frequency amplifier and method thereof |
| 05/10/2007 | DE10341320B4 Differenzverstärkerschaltung Differential amplifier circuit |
| 05/09/2007 | EP1781893A1 Horizontal perspective simulator |
| 05/09/2007 | EP1569359B1 Method and apparatus for optimizing transmitter power efficiency |
| 05/09/2007 | CN1961479A Acoustic device |
| 05/09/2007 | CN1961478A Staggered agc with digitally controlled vga |
| 05/09/2007 | CN1961477A Automatic current reduction biasing technique for RF amplifier |
| 05/09/2007 | CN1960175A Method and apparatus to control output power of a power amplifier and audio player having the same |
| 05/09/2007 | CN1315255C Variable gain low-noise amplifier for a wireless terminal |
| 05/08/2007 | US7215972 Adaptive transmit power control system |
| 05/08/2007 | US7215937 Radio wave reception device, radio wave clock, and repeater |
| 05/08/2007 | US7215782 Apparatus and method for producing virtual acoustic sound |
| 05/08/2007 | US7215203 High frequency power amplifier circuit device |
| 05/08/2007 | US7215202 Programmable gain amplifier and method |
| 05/08/2007 | US7215196 Variable impedance circuit, variable gain differential amplifier, multiplier, high-frequency circuit and differential distributed amplifier |
| 05/08/2007 | US7215195 Differential amplifier and operational amplifier |
| 05/08/2007 | US7215191 Device for amplitude adjustment and rectification made with MOS technology |
| 05/08/2007 | US7215176 Analog value adjustment circuit, display driver circuit, and method of adjusting analog value |
| 05/08/2007 | US7215162 Start signal outputting circuit |
| 05/03/2007 | WO2007049222A1 Adaptive volume control for a speech reproduction system |
| 05/03/2007 | US20070098188 Equalization setting determination for audio devices |
| 05/03/2007 | US20070098187 Method and apparatus for reproducing music file |
| 05/03/2007 | US20070098185 High frequency signal construction method and apparatus |
| 05/03/2007 | US20070096824 System and method for controlling transmitter output levels in a wireless communications device |
| 05/03/2007 | US20070096823 Bias circuit for BJT amplifier |
| 05/03/2007 | US20070096822 Amplifier control system |
| 05/03/2007 | DE19723248B4 Kompakter Aufbau für eine selbstregelnde Verstärkerschaltung Compact design for a self-regulating amplifier circuit |
| 05/03/2007 | DE102005051699A1 Sound level variation correcting method for use in vehicle, involves detecting characteristics` changes of frequency section according to given criteria, so as to determine control variable for variation of signal amplification |
| 05/03/2007 | DE102004014731B4 Mess-Schaltung für den Ausgang eines Leistungsverstärkers sowie ein die Mess-Schaltung umfassender Leistungsverstärker Measuring circuit for the output of a power amplifier and a measuring circuit comprehensive power amplifier |
| 05/02/2007 | EP1780915A1 Method and apparatus for selective disregard of co-channel transmissions on a medium |
| 05/02/2007 | EP1780704A1 Voice signal detection system and method |
| 05/02/2007 | EP1779520A1 A versatile attenuator |
| 05/02/2007 | EP1354401B1 Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
| 05/02/2007 | CN1956348A Emitter for CDMA communication system and emitting method thereof |
| 05/02/2007 | CN1956322A Volume control method and system |
| 05/02/2007 | CN1956321A Method for preventing output device demaged |
| 05/02/2007 | CN1314214C Receiving circuit for free-space optical communication |
| 05/02/2007 | CN1314198C RF power amplifier and method for improving efficiency thereof |
| 05/01/2007 | US7212796 Antenna unit and receiving circuit |
| 05/01/2007 | US7212795 Automatic gain control and antenna selection method for a radio communication system |
| 05/01/2007 | US7212640 Variable attack and release system and method |
| 05/01/2007 | US7212592 Digitally programmable gain control circuit |
| 05/01/2007 | US7212586 Direct conversion RF transceiver for wireless communications |
| 04/26/2007 | WO2007014071A3 Dynamic bias for receiver controlled by radio link quality |
| 04/26/2007 | US20070093225 Semiconductor integrated circuit device and wireless communication system |
| 04/26/2007 | US20070092089 Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal |
| 04/26/2007 | US20070090880 Operational amplifier for outputting high voltage output signal |
| 04/25/2007 | EP1776775A1 Determining the current value of a transmission power of a radio telecommunication device |
| 04/25/2007 | EP1776756A1 Rf power sensing circuit |
| 04/25/2007 | EP1776755A1 Low current direct conversion transmitter architecture |
| 04/25/2007 | EP1683391A4 System and method for controlling audio output |
| 04/25/2007 | CN1953047A Control system of volume range and method thereof |
| 04/25/2007 | CN1312838C Electronic volume regulator and measuring method thereof |
| 04/24/2007 | US7209004 DB-linear variable gain amplifier (VGA) stage with a high broad band |
| 04/24/2007 | US7209002 Audio amplifier |
| 04/24/2007 | CA2114982C Arrangement for duplex transmission |
| 04/19/2007 | WO2007044126A2 System and method of transmitter power detection |
| 04/19/2007 | WO2007043122A1 Variable gain amplifier and its control method |
| 04/19/2007 | WO2006088589A3 Power control circuit for accurate control of power amplifier output power |
| 04/19/2007 | WO2005033871A3 Method for creating a collection of multimedia interactive graphic elements using arrow logic |
| 04/19/2007 | US20070087712 NxM Crosspoint Switch with Band Translation |
| 04/19/2007 | US20070086604 Constant sound level |
| 04/19/2007 | US20070085718 System and method for a direct conversion multi-carrier processor |
| 04/19/2007 | DE102004044741B4 Schaltungsanordnung zur schaltbaren Verstärkung von veränderlichen elektrischen Signalen Circuit arrangement for switchable gain of variable electrical signals |
| 04/18/2007 | EP1774620A1 Integrated rf front end |
| 04/18/2007 | EP1595344B1 Method and apparatus for selective disregard of co-channel transmissions on a medium |
| 04/18/2007 | EP1374439A4 Automatic gain control method for highly integrated communication receiver |
| 04/18/2007 | CN1951092A Telephone headset amplifier with noise blanking capability |
| 04/18/2007 | CN1951020A Signal processing method, particularly in a radio-frequency receiver, and signal conditioning circuit |
| 04/18/2007 | CN1311627C Amplifier device and emission device with the device |
| 04/17/2007 | US7206420 Softclip method and apparatus |
| 04/17/2007 | US7206413 Sound processing system using spatial imaging techniques |
| 04/17/2007 | US7206360 Amplitude deviation correction circuit |
| 04/17/2007 | US7206030 Fast-convergence two-stage automatic gain control (AGC) |
| 04/17/2007 | US7205842 Continuous alternating closed-open loop power control |
| 04/17/2007 | US7205841 Automatic gain control with three states of operation |
| 04/17/2007 | US7205832 Temperature compensated, high efficiency, controlled input impedance diode detector |
| 04/12/2007 | WO2007040053A1 Video sound output device and external loudspeaker controller |
| 04/12/2007 | WO2007039640A1 Receiving circuit for an information engineering receiving device |
| 04/12/2007 | WO2007001738A3 A linear power efficient radio frequency (rf) driver system and method with power level control |
| 04/12/2007 | US20070082629 Reception apparatus and reception method |
| 04/12/2007 | US20070081675 Method and apparatus for outputting an audio signal according to a DMB channel |
| 04/12/2007 | US20070080748 System and method for increasing accuracy of transmitter power detection over a larger range of output power levels |
| 04/12/2007 | US20070080746 Glitch-free controllable rf power amplifier |
| 04/12/2007 | DE102005047171A1 Schaltungsanordnung mit einem rückgekoppelten Operationsverstärker Circuit arrangement having a feedback operational amplifier |
| 04/11/2007 | EP1772968A2 Automatic gain control with out of band blocking signal compensation |
| 04/11/2007 | EP1771945A1 Method for correcting metadata affecting the playback loudness and dynamic range of audio information |
| 04/11/2007 | CN1947438A Adaptive transmit power control system |
| 04/11/2007 | CN1947366A Method and circuit used to prevent or at least to reduce disturbance signals when switching off voltage supply, in particular in a household device |
| 04/11/2007 | CN1947330A 可编程无线收发器 Programmable wireless transceivers |
| 04/11/2007 | CN1945967A Automatic regulating audio frequency device based on background environment |
| 04/11/2007 | CN1945357A Method for setting exploration signal receiver amplifying time of artificial field source electric method |