| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 02/12/2008 | US7330670 Bottom level detection device for burst mode optical receiver |
| 02/12/2008 | US7330554 Volume control apparatus and method thereof |
| 02/12/2008 | US7330551 Apparatus and method for controlling input signal level |
| 02/12/2008 | US7330072 Circuit for power amplification |
| 02/12/2008 | US7330071 High efficiency radio frequency power amplifier having an extended dynamic range |
| 02/07/2008 | WO2008015898A1 Transmitter |
| 02/07/2008 | WO2008015648A2 Improvements in or relating to automatic gain control of radio devices |
| 02/07/2008 | US20080032656 Controllable Power Operational Transconductance Amplifier |
| 02/07/2008 | US20080032634 System And Method For Low Delay Corrective Feedback Power Amplifier Control |
| 02/07/2008 | US20080031464 Method Of Evaluating Perception Intensity Of An Audio Signal And A Method of Controlling An Input Audio Signal On The Basis Of The Evaluation |
| 02/07/2008 | US20080031382 Low Distortion Radio Frequency (RF) Limiter |
| 02/07/2008 | US20080030277 Power amplifier with output voltage compensation |
| 02/07/2008 | US20080030276 Multi-mode power amplifier with high efficiency under backoff operation |
| 02/07/2008 | DE102006035663A1 Circuit arrangement for e.g. mobile telephone, has regulation unit coupled with signal processing unit to provide digital regulation signal for regulation of analog output signal depending on analog output signal and ramp signal |
| 02/07/2008 | CA2658298A1 Abrasive compacts |
| 02/06/2008 | EP1885058A1 Method of controlling amplifier gain and amplifier stage |
| 02/06/2008 | EP1884036A1 Method and apparatus for controlling spurious transmissions in a communications system |
| 02/06/2008 | CN101119106A Output volume automatic regulation method of media player |
| 02/06/2008 | CN101119098A Gain fluctuation regulation circuit and method |
| 02/06/2008 | CN100367684C Power control device and method for calibrating the power of a transmitter or receiver in a mobile communication network |
| 02/05/2008 | US7328040 Mobile-communication equipment and transmission power control method |
| 02/05/2008 | US7327850 Supplying electrical power |
| 02/05/2008 | CA2356699C Communication receiver having reduced dynamic range |
| 01/31/2008 | WO2008014293A1 Saturation detection for analog-to-digital converter |
| 01/31/2008 | WO2008013488A1 A method of limiting the maximum permitted sound volume in an earphone, and an earphone for carrying out the method |
| 01/31/2008 | US20080025531 Microphone amplifier |
| 01/31/2008 | US20080025530 Method and apparatus for normalizing sound playback loudness |
| 01/31/2008 | US20080025529 Adjusting the volume of an audio element responsive to a user scrolling through a browser window |
| 01/31/2008 | US20080025525 Method for controlling volume of earphone |
| 01/31/2008 | US20080024227 Communication semiconductor integrated circuit device and wireless communication system |
| 01/31/2008 | US20080024226 Inverting amplifier |
| 01/31/2008 | US20080024225 Rf power amplifier |
| 01/31/2008 | US20080024220 Gain-controlled amplifier |
| 01/31/2008 | US20080024214 Power amplifier circuit for peak envelope modulation of high frequency signal |
| 01/31/2008 | DE102004007635B4 Verstärker mit schaltbarer Gegenkopplung Amplifier with switchable feedback |
| 01/30/2008 | EP1883066A1 Signal processing for speech signal |
| 01/30/2008 | EP1346474B1 Amplifier circuit |
| 01/30/2008 | CN101116242A Closed loop power control with high dynamic range |
| 01/30/2008 | CN101115324A Volume controlling technique |
| 01/30/2008 | CN101114819A Sound volume controller |
| 01/30/2008 | CN101114818A Sound volume control method |
| 01/29/2008 | US7324787 Method of ramping up output level of power amplifier of radio communication system, communication semiconductor integrated circuit, and radio communication system |
| 01/29/2008 | US7324040 Method of automatically setting the gain of an interrogator receiver within a non-contacting identification system |
| 01/29/2008 | US7323945 Programmable radio transceiver |
| 01/29/2008 | US7323937 Variable-gain amplifier |
| 01/29/2008 | US7323770 Hybrid integrated circuit device, and method for fabricating the same, and electronic device |
| 01/24/2008 | US20080018403 High frequency amplifier having attenuator |
| 01/24/2008 | DE102007011775A1 DC-Offset-Unterdrückungsschaltung und Verstärker mit programmierbarer Verstärkung, in welchem diese verwendet wird DC offset cancellation circuitry and programmable gain amplifier in which it is used |
| 01/23/2008 | EP1881611A1 Transmission circuit and communication device |
| 01/23/2008 | EP1881602A1 Method and circuit for audio output muting |
| 01/23/2008 | EP1881601A1 Automatic gain control circuit |
| 01/23/2008 | EP1881600A2 DC offset cancellation for a trans-impedance amplifier |
| 01/23/2008 | EP1687895B1 Programmable automatic gain control according to transmission protocols |
| 01/23/2008 | EP1397860B1 A method and apparatus for calibrating a gm cell utilizing a replica gm cell |
| 01/23/2008 | EP1275206B1 Method and arrangement for minimizing power dissipation in a line driver |
| 01/23/2008 | CN101110404A Hybrid integrated circuit device, and method for fabricating the same, and electronic device |
| 01/23/2008 | CN101110217A Automatic gain control method for audio signal and apparatus thereof |
| 01/22/2008 | US7321750 Communication system, device and method |
| 01/17/2008 | WO2008007308A1 Class d audio amplifier |
| 01/17/2008 | WO2003012984A3 Adaptive automatic gain control |
| 01/17/2008 | US20080015851 Acoustic Device |
| 01/17/2008 | US20080014977 System and method for antenna diversity using equal power joint maximal ratio combining |
| 01/17/2008 | US20080014895 Direct conversion receiver architecture |
| 01/17/2008 | US20080013754 Method of volume controlling |
| 01/17/2008 | US20080013749 Voice coder with two microphone system and strategic microphone placement to deter obstruction for a digital communication device |
| 01/17/2008 | US20080013746 Apparatus and method for simulating a wave field synthesis system |
| 01/17/2008 | US20080013745 Automatic volume control for audio signals |
| 01/17/2008 | US20080013655 Apparatus and method for automatic gain control |
| 01/17/2008 | US20080012643 Tunable Cascode Lna With Flat Gain Response Over A Wide Frequency Range |
| 01/17/2008 | US20080012638 Power supply apparatus, amplifier apparatus, radio apparatus and reproducing apparatus |
| 01/17/2008 | US20080012637 Radio frequency power amplifier circuit and method |
| 01/17/2008 | DE102006038410B3 Device for regulation of output power of amplifier stage, has power detector for retaining output power value, and limiting unit is coupled at regulating unit to limit values of power correction signal depending on control signal |
| 01/17/2008 | DE10190481B4 Konstantspannungsquelle, Konstantspannungsquellen-Schaltungsplatte und Verfahren zum Zuführen einer vorbestimmten Spannung Constant voltage source, constant voltage source circuit board and method for supplying a predetermined voltage |
| 01/16/2008 | EP1879296A2 Peak suppression control apparatus |
| 01/16/2008 | EP1878184A2 Power control system for a continuous time mobile transmiter |
| 01/16/2008 | CN101107785A Mobile communication terminal and method for controlling a plurality of receiving apparatuses mounted on mobile communication terminal |
| 01/16/2008 | CN101106361A Mutually supplementary gain control circuit |
| 01/16/2008 | CN100362748C Receiver circuit and radio communication terminal apparatus |
| 01/16/2008 | CN100362745C Combined open-loop and closed-loop power control measured by using difference |
| 01/15/2008 | US7319764 Method and apparatus for controlling volume |
| 01/15/2008 | US7319363 Method and circuit for controlling amplification |
| 01/15/2008 | US7319362 Power amplifying apparatus |
| 01/10/2008 | WO2008004074A2 Method and apparatus for providing adaptive supply voltage control of a power amplifier |
| 01/10/2008 | WO2007076299A3 Telecommunications terminal and method of operation of the terminal |
| 01/10/2008 | WO2004097351A3 Determining reverberation time |
| 01/10/2008 | US20080008336 Automatic gain control circuit |
| 01/10/2008 | US20080008335 Amplifying an audio signal |
| 01/10/2008 | US20080008311 Methods and apparatus for improving voice quality in an environment with noise |
| 01/10/2008 | US20080008198 Method and system for improving dynamic range for communication systems using upstream analog information |
| 01/10/2008 | US20080007333 Method and apparatus for controlling a power amplifier in a mobile communication system |
| 01/10/2008 | US20080007332 Multiband dynamic range control graphical interface |
| 01/09/2008 | EP1876706A1 Acoustic reproduction device |
| 01/09/2008 | CN101102120A Wireless communication apparatus |
| 01/09/2008 | CN101102098A Automatic gain control circuit |
| 01/09/2008 | CN101102097A Fixed gain amplifier for automatic gain control and variable gain amplifier |
| 01/09/2008 | CN101102096A Direct conversion receiver architecture |
| 01/08/2008 | US7317902 Successive log video pad power detector and method |
| 01/08/2008 | US7317800 Apparatus and method for processing an audio signal to compensate for the frequency response of loudspeakers |
| 01/08/2008 | US7317352 Power amplifier |
| 01/03/2008 | WO2008002026A1 Variable gain amplifier having linear-in-db gain characteristic |