| Patents for H03G 1 - Details of arrangements for controlling amplification (4,021) |
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| 10/01/2009 | US20090243726 Variable resistor array and amplifier circuit |
| 09/30/2009 | CN100546184C Channel selector with automatic gain control |
| 09/29/2009 | US7596233 System and method for controlling volume with a single knob |
| 09/23/2009 | EP2102982A1 Automatic gain control with improved cross-modulation |
| 09/22/2009 | US7593480 Transmission device and radio communication device |
| 09/17/2009 | DE102005044416B4 Hörvorrichtung mit verbessertem Lautstärkesteller oder Programmschalter Hearing apparatus with improved volume control or program switch |
| 09/16/2009 | EP1668647B1 Active current mode sampling circuit |
| 09/16/2009 | CN101536308A Automatic gain control with improved cross-modulation |
| 09/09/2009 | CN100539401C Method and device for amplifying a reception signal |
| 08/29/2009 | CA2656659A1 Transmitter of a system for detecting a buried conductor |
| 08/26/2009 | EP2093882A1 Variable gain circuit |
| 08/26/2009 | CN100533955C Front stage amplifier with different modes |
| 08/25/2009 | US7580684 Programmable radio transceiver |
| 08/25/2009 | US7579912 Method and system for multiple tuner application using a low noise broadband distribution amplifier |
| 08/20/2009 | DE202009006103U1 Rückwirkungsfreier, elektromechanischer Lautstärkesteller für Lautsprecher in pilottonüberwachten elektroakustischen Gefahrenmeldesystemen Reactionless, electromechanical volume control for speakers in pilottonüberwachten electroacoustic hazard detection systems |
| 08/19/2009 | EP1410618B1 Integrated upstream amplifier for cable modems and cable set-top boxes |
| 08/13/2009 | WO2009100387A1 Lna having a post-distortion mode and a high-gain mode |
| 08/13/2009 | WO2009100381A1 Multi-mode power amplifiers |
| 08/12/2009 | CN101507111A Multi-function passive frequency mixer |
| 08/05/2009 | EP2086108A1 Transconductance amplifier |
| 07/29/2009 | CN100521509C Gain changeable amplifier |
| 07/28/2009 | US7567122 Variable gain amplifiers systems and methods |
| 07/15/2009 | EP1595400A4 Audio volume control |
| 07/15/2009 | CN100514852C Power amplifier circuit and method for amplifying RF signals |
| 07/15/2009 | CN100514848C Broad-band high frequency linear amplifier and integrated circuit chip |
| 07/09/2009 | WO2009083796A2 Variable gain amplifier |
| 07/08/2009 | CN100511973C Voltage to current converter and method for converting |
| 06/30/2009 | US7555132 Apparatus and method for adjusting sound volume for televisions and other audio systems |
| 06/24/2009 | EP1611741B1 Integrated tuner |
| 06/24/2009 | CN100505521C Amplifier circuit and method for preserving linearity of an power amplifier |
| 06/23/2009 | US7551238 Integrated tuner |
| 06/17/2009 | EP2071720A1 Method and circuit for controlling baseband gain |
| 06/16/2009 | US7548732 Power amplifier arrangement having two or more antenna coupling respective amplifiers to a supply potential |
| 06/10/2009 | CN101454972A Gain-controlled low noise amplifier means |
| 05/26/2009 | US7539320 Hearing aid with automatic excessive output sound control |
| 05/19/2009 | US7536114 Method and system for converting an optical received pulse train into an electrical output pulse train |
| 05/19/2009 | US7535892 Voice over internet protocol system having dynamic gain control function and method thereof |
| 05/13/2009 | EP2058944A1 Transconductance amplifier |
| 05/13/2009 | CN100488039C Thermal attenuator and radio transciever |
| 05/07/2009 | WO2009058948A2 Programmable gain circuit |
| 05/07/2009 | WO2009056360A1 Matched integrated electronic components |
| 05/06/2009 | EP1374396B1 Variable gain low-noise amplifier for a wireless terminal |
| 05/06/2009 | CN101425786A Variable gain amplifier |
| 04/30/2009 | WO2009000236A3 High-dynamic ammeter with small time constant |
| 04/29/2009 | CN101420208A Variable gain amplifier including series-coupled cascode amplifiers |
| 04/29/2009 | CN100483928C Amplifier having switchable negative feedback |
| 04/23/2009 | US20090103741 Method of correction of acoustic parameters of electro-acoustic transducers and device for its realization |
| 04/23/2009 | DE19882089B4 Verstärker zur kontinuierlichen schmalbandigen Signalverstärkung mit hohem Verstärkungsfaktor und Verstärkungsverfahren Continuous narrow-band amplifier for signal amplification with a high gain and amplification method |
| 04/22/2009 | EP1792396B1 Signal splitter |
| 04/15/2009 | EP2047594A1 Passive amplification of signals |
| 04/15/2009 | EP1553695B1 Start signal output circuit |
| 04/14/2009 | US7519344 Bandpass amplifier, method, and system |
| 04/09/2009 | WO2009045517A1 Programmable-gain amplifier systems to facilitate low-noise, low-distortion volume control |
| 04/08/2009 | EP2045915A1 Low noise amplifier and mixer front-end circuit and method for gain control |
| 04/08/2009 | EP2045913A1 Low noise amplifier and N-mode gain control circuit therefor |
| 04/08/2009 | CN100477511C System and method for adjusting output power of power amplifier |
| 04/08/2009 | CN100477504C High-frequency amplifier |
| 04/07/2009 | US7515895 System and method for on-chip filter tuning |
| 04/01/2009 | CN100474764C Variable gain amplifier system and method for providing the same |
| 03/26/2009 | US20090079524 Multi-band tunable resonant circuit |
| 03/25/2009 | CN101394157A Variable gain amplifier having wide gain variation and wide bandwidth |
| 03/25/2009 | CN100472960C Controllable RF broadband amplifier with a constant input impedance |
| 03/24/2009 | US7508427 Apparatus and method for amplifying analog signal and analog preprocessing circuits and image pick-up circuits |
| 03/19/2009 | US20090072906 High frequency power amplifier circuit and electronic component for high frequency power amplifier |
| 03/18/2009 | CN100471040C Start signal output circuit |
| 03/11/2009 | EP2033308A1 High linearity low noise variable gain amplifier with continuous gain control |
| 03/11/2009 | CN101383594A RF variable gain amplifier |
| 03/11/2009 | CN100468964C Power amplification apparatus, and mobile communication terminal apparatus |
| 03/11/2009 | CN100468577C Active current mode sampling circuit |
| 03/05/2009 | WO2009027581A1 Signal amplifier structure for radio transmitter |
| 03/04/2009 | EP2031940A2 LED cluster assembly with constant current switch |
| 03/04/2009 | EP2030319A2 Digital attenuator circuits and methods for use thereof |
| 03/04/2009 | EP2030318A1 Gain-controlled low noise amplifier means |
| 03/04/2009 | CN101378262A Power amplifier protection device and method for UHF wide-band transmitter |
| 03/03/2009 | US7499692 Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuit |
| 02/24/2009 | US7495511 Input system for a variable gain amplifier having class-AB transconductance stages |
| 02/18/2009 | CN101369801A Distortion sensing means, automatic distortion avoiding device, and high-frequency amplifier |
| 02/12/2009 | WO2008139032A8 Transmitter emission control |
| 02/11/2009 | CN101366176A Phase compensation for analog gain switching in OFDM modulated physical channel |
| 02/04/2009 | CN100459452C Method and apparatus for increasing receiver immunity to interference |
| 01/29/2009 | WO2009014569A1 A variable gain stage having same input capacitance regardless of the stage gain |
| 01/29/2009 | WO2009012537A1 Equalizer filter with mismatch tolerant detection mechanism for lower and higher frequency gain loops |
| 01/28/2009 | EP1897218B1 Variable gain amplifier with temperatore compensation and gain linearity enhancement |
| 01/28/2009 | EP1504526B1 Improved variable gain amplifier |
| 01/27/2009 | US7483681 Power saving in a transmitter |
| 01/27/2009 | US7482887 Multi-band tunable resonant circuit |
| 01/21/2009 | EP2016675A1 Cmos temperature compensated transmitter circuit with merged mixer and variable gain amplifier |
| 01/21/2009 | EP2016432A2 Rf power sensor with chopping amplifier |
| 01/21/2009 | CN101350605A Improved bipolar type variable gain amplifier with minimum gain control |
| 01/21/2009 | CN101350602A Signal amplifier circuit and audio system using the same |
| 01/14/2009 | CN100452643C Alternative-gaint and phase control system and method |
| 01/08/2009 | US20090009249 Input Stage |
| 01/07/2009 | EP2011233A1 Automatic switched gain amplifier for mobile reception |
| 01/07/2009 | CN100450239C Attenuator with switching function and portable telephone terminal device adapting such attenuator |
| 01/02/2009 | DE102008029143A1 Verfahren, Vorrichtung und System zur Verhinderung eines Sättigungszustands Method, apparatus and system for preventing a saturated state |
| 12/31/2008 | WO2009000236A2 High-dynamic ammeter with small time constant |
| 12/31/2008 | CN101335505A Gain control circuit of wireless receiver |
| 12/24/2008 | WO2008155610A2 Power amplifier time-delay invariant predistortion methods and apparatus |
| 12/11/2008 | WO2008057868A3 Pseudo digital gain control for broadband tuner |
| 12/10/2008 | EP2001129A2 Signal processing device and method |