| Patents for H03G 1 - Details of arrangements for controlling amplification (4,021) |
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| 10/12/2004 | US6803819 Variable gain amplifier having improved gain slope characteristic and linearity |
| 10/12/2004 | CA2361298C Impedance matching low noise amplifier having a bypass switch |
| 10/07/2004 | WO2004086757A1 Integrated tuner |
| 10/07/2004 | WO2004086651A1 Power saving in a transmitter |
| 10/07/2004 | WO2004045226A3 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
| 10/07/2004 | US20040196020 Variable impedance network with coarse and fine controls |
| 10/05/2004 | US6801089 Continuous variable-gain low-noise amplifier |
| 10/05/2004 | US6801085 System and method for activating gain stages in an amplification module |
| 09/30/2004 | US20040192237 Feedforward amplifier and radio communication apparatus with the amplifier |
| 09/30/2004 | US20040189388 Variable transconductance variable gain amplifier utilizing a degenerated differential pair |
| 09/29/2004 | EP1391035B1 Circuit arrangement comprising cascaded field effect transistors |
| 09/28/2004 | US6798291 Variable gain current amplifier with a feedback loop including a differential pair |
| 09/28/2004 | US6798283 Gigabit ethernet transceiver with analog front end |
| 09/23/2004 | US20040185814 Attenuator with switch function and mobile telephone terminal device using the same |
| 09/23/2004 | US20040183595 Amplifier device |
| 09/22/2004 | EP1459442A2 Integrated circuit with an amplifier |
| 09/22/2004 | CN1531777A Programmable logarithmic gain adjustment for open-loop amplifiers |
| 09/22/2004 | CN1531193A Distortion detector and high-frequency amplifier therewith |
| 09/21/2004 | US6794941 Gain-controlled amplifier with fixed minimum gain |
| 09/16/2004 | US20040178850 Variable gain differential amplifier and multiplication circuit |
| 09/16/2004 | DE10307315B3 Amplifier circuit, especially low-noise amplifier, with passive gain-step stage has device for switching off amplifier and switching on coupler if level of input signal exceeds threshold value |
| 09/15/2004 | EP1145430B1 Integrated tuner architecture |
| 09/15/2004 | CN1529409A Apparatus for eliminating colume change lead-in noise volume regulation |
| 09/14/2004 | US6791416 Variable gain amplifier with adjustable gain slope |
| 09/14/2004 | US6791414 Signal processing stage and radio frequency tuner |
| 09/14/2004 | US6791377 LVDS driver in bipolar and MOS technology |
| 09/10/2004 | WO2004077666A1 Gain variable voltage/current conversion circuit and filter circuit using the same |
| 09/10/2004 | WO2004027986A3 Dc-compensation loop for variable gain amplifier |
| 09/07/2004 | US6788983 Audio trigger devices |
| 09/02/2004 | WO2004075399A1 Logic low noise amplifier and amplification control method thereof |
| 09/02/2004 | WO2004015859A3 Variable gain amplifier with improved control characteristics linearity |
| 09/02/2004 | US20040169551 Active filter circuit with dynamically modifiable gain |
| 08/31/2004 | US6784744 Amplifier circuits and methods |
| 08/31/2004 | US6784742 Voltage amplifying circuit |
| 08/31/2004 | US6784741 Amplifier |
| 08/31/2004 | US6784740 Power amplifier |
| 08/31/2004 | US6784738 Method and apparatus for gain control in a CMOS low noise amplifier |
| 08/31/2004 | US6784737 Voltage multiplier circuit |
| 08/26/2004 | US20040166821 Methods and apparatus for improving the operation of a variable gain amplifier (VGA) |
| 08/26/2004 | DE10307316B3 Amplifier switching circuit with active gain-step-switching is for high-frequency equipment and includes intermediate step amplifier with two transistors and diode |
| 08/25/2004 | EP1450484A2 Mobile communication terminal device and variable gain circuit |
| 08/25/2004 | CN1523868A Network phone system and method having dynamic gain control function |
| 08/24/2004 | US6781461 Method and system for producing a drive signal for a current steering amplifier |
| 08/19/2004 | WO2003096528A3 Wide-dynamic-range, variable-gain, low-noise amplifier circuit |
| 08/19/2004 | US20040160272 Large dynamic range programmable gain attentuator |
| 08/18/2004 | EP1446873A1 Method and system for multiple tuner application using a low noise broadband distribution amplifier |
| 08/18/2004 | EP0797873B1 Method and apparatus for increasing receiver immunity to interference |
| 08/12/2004 | US20040157575 Variable attenuator system and method |
| 08/12/2004 | US20040155708 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
| 08/11/2004 | EP1445857A2 Attenuator with switch function and mobile telephone terminal device using the same |
| 08/11/2004 | EP0981855B1 Radio receiver and gain controlled amplifier therefor |
| 08/11/2004 | CN1520637A Direct conversion receiver architecture |
| 08/11/2004 | CN1520636A Method and appts. for calibrating GM cell utilizing replica GM cell |
| 08/11/2004 | CN1520217A Attenuator with switching function and portable telephone terminal device adapting such attenuator |
| 08/10/2004 | US6775525 Radio communication apparatus and semiconductor device |
| 08/10/2004 | US6775336 Receiver and gain control method of the same |
| 08/05/2004 | US20040151336 Handheld device having an auto-volume control means for earphone plugging and controlling method thereof |
| 08/05/2004 | US20040150467 Adjustable bandwidth high pass filter for large input signal, low supply voltage applications |
| 08/04/2004 | CN1160857C Electric circuit apparatus for producing output signal |
| 08/03/2004 | US6771124 System and method for low-noise amplifier with a high frequency response |
| 07/29/2004 | WO2004064251A1 Variable gain amplifier circuit and radio machine |
| 07/29/2004 | WO2004064250A1 Controllable rf broadband amplifier with a constant input impedance |
| 07/28/2004 | CN1159841C Radio-frequency amplifier with gain control |
| 07/27/2004 | US6768377 Impedance matching low noise amplifier having a bypass switch |
| 07/27/2004 | US6768374 Programmable gain amplifier with single stage switched capacitor circuit using bandwidth balancing |
| 07/27/2004 | CA2274529C High dynamic range variable gain amplifier |
| 07/22/2004 | WO2004062317A1 Headphone automatic gain control system |
| 07/22/2004 | US20040140853 Gm replica cell utilizing an error amplifier connected to a current mirror |
| 07/22/2004 | US20040140852 Gain adjusting and circuit arrangement |
| 07/22/2004 | US20040140840 High linearity large bandwidth, switch insensitive, programmable gain attenuator |
| 07/22/2004 | DE10300431A1 Regelbarer HF-Breitbandverstärker mit konstanter Eingangsimpedanz Adjustable RF wideband amplifier with constant input impedance |
| 07/21/2004 | EP1438838A1 Adaptive bandwidth control in a kinescope amplifier |
| 07/21/2004 | CN1514540A Variable attenuator system and method |
| 07/21/2004 | CN1514539A Gain changeable amplifier |
| 07/21/2004 | CN1158651C Amplifier capable of digital control gain and disc reader mounted the same device |
| 07/15/2004 | US20040138770 Audio reproducer suitable to practice musical instrument |
| 07/15/2004 | US20040135632 Variable gain amplifier |
| 07/13/2004 | US6763470 System and method for dynamically amplifying a delayed analog signal based on amplitude information obtained from its digital representation |
| 07/08/2004 | US20040132420 Mobile communication terminal device and variable gain circuit |
| 07/08/2004 | US20040130465 Pontentiometer with an optical position encoder |
| 07/07/2004 | EP1099303A4 Method and apparatus for controlling an audio signal level |
| 07/06/2004 | US6759904 Large gain range, high linearity, low noise MOS VGA |
| 07/01/2004 | US20040124919 Method and system for implementing autonomous automatic gain control in a low noise broadband distribution amplifier |
| 07/01/2004 | US20040124917 Variable gain amplifier |
| 07/01/2004 | US20040124891 Method and amplification circuit with pre-emphasis |
| 06/30/2004 | CN1509554A Multiple bandwidth amplifier control system for mobile stations and method thereof |
| 06/30/2004 | CN1509517A Circuit apparatus comprising cascaded field effect transistors |
| 06/29/2004 | US6756848 Amplifier device with gain switching, for a cellular mobile telephone in particular |
| 06/24/2004 | WO2004054095A1 Preserving linearity of an isolator-free power amplifier by dynamically switching active devices |
| 06/24/2004 | US20040120534 Headphone automatic gain control system |
| 06/24/2004 | US20040119536 Variable gain amplifier |
| 06/24/2004 | US20040119531 Dc offset canceling circuit applied in a variable gain amplifier |
| 06/24/2004 | DE10353047A1 Variable-gain amplifier for radio frequency signals, has gain bypass device for passing RF input signal to output, bypassing field effect transistor when varying gain |
| 06/23/2004 | EP1432121A1 Temperature compensated amplifer circuit |
| 06/23/2004 | CN1155238C Frequency compensated pin diode attenuator |
| 06/23/2004 | CN1155152C Amplifier |
| 06/22/2004 | US6753732 Accurate, wide-band, low-noise variable-gain amplifier structures and gain control methods |
| 06/17/2004 | WO2004051847A2 Audio volume control |
| 06/17/2004 | WO2004051846A2 Gain compensation over temperature and frequency variations in wireless transceivers |
| 06/17/2004 | US20040113702 Tuner circuit |