Patents
Sitemap › H03 - Basic electronic circuitry › H03G - Control of amplification › H03G 3 - Gain control in amplifiers or frequency changers
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
05/2010
05/27/2010CA2743962A1 Folding sequential adaptive equalizer
05/26/2010EP2188891A1 Local oscillator buffer and mixer having adjustable size
05/26/2010CN201490977U Volume controller and television comprising same
05/26/2010CN1941619B Volume management system and method
05/26/2010CN1781245B Method and apparatus for controlling the output power of a power amplifier
05/26/2010CN1714505B Method, system and device for providing linear decibel gain control in radio frequency driver amplifier
05/26/2010CN1706122B Wireless communication device
05/26/2010CN1628412B Variable impedance load for a variable gain radio frequency amplifier
05/26/2010CN1577954B Attenuator and portable telephone terminal apparatus using the same
05/26/2010CN1541443B Open loop variable gain amplifier using replica gain cell and signal amplification method
05/26/2010CN101714855A System and method for automatically adjusting volume
05/26/2010CN101295965B Digital automatic gain control circuit apparatus
05/25/2010US7725135 Mobile terminal and a sound pressure control method
05/25/2010US7724910 Atmosphere control device
05/25/2010US7724909 Automobile audio system
05/25/2010US7724837 Efficient modulation of RF signals
05/25/2010US7724090 Loop control apparatus and method thereof
05/25/2010US7724086 Apparatus and method for regulating the output power of an amplifier stage
05/20/2010WO2010057133A1 Dynamic volume control and multi-spatial processing protection
05/20/2010US20100124338 Audio/video device having a volume control function for external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor
05/20/2010US20100123521 Process, voltage and temperature control for high-speed, low-power fixed and variable gain amplifiers based on mosfet resistors
05/20/2010CA2776484A1 Dynamic volume control and multi-spatial processing protection
05/19/2010EP2186202A1 Method and system for precise transmit power adjustment in wireless communication systems
05/19/2010EP2186192A1 Network audio processor
05/19/2010CN201479087U Numerical control multi-channel amplifier
05/19/2010CN101299597B Digital type phase jitter modulation amplitude automatic gain control circuit
05/19/2010CN101227175B Analog type volume control circuit as well as control method
05/18/2010US7721317 Coaxial communication active tap device and distribution system
05/18/2010US7720448 Signal generation power management control system for portable communications device and method of using same
05/18/2010US7720447 Radiofrequency (RF) and/or microwave power amplification device and corresponding radiocommunication terminal
05/18/2010US7720238 Video-audio output device and video/audio method
05/18/2010US7719362 Programmable-gain amplifier systems to facilitate low-noise, low-distortion volume control
05/18/2010US7719354 Dynamic biasing system for an amplifier
05/14/2010WO2010052265A1 Method and device to control the gain of a radio receiver
05/13/2010US20100119075 Spatially enveloping reverberation in sound fixing, processing, and room-acoustic simulations using coded sequences
05/12/2010EP2184851A1 Method and device to control the gain of a radio receiver
05/12/2010EP1469596B1 Method for controlling power gain
05/12/2010CN1941620B Method for removing loundspeaker noise
05/12/2010CN1918798B Transmission power control device
05/12/2010CN1871791B Additional regulation of the reference signal of the automatic power control in a mobile terminal
05/12/2010CN1841924B Variable gain amplifier, mixer and quadrature modulator using the same
05/12/2010CN1759551B Enhanced automatic gain control mechanism for time-slotted data transmissions
05/12/2010CN1717865B System and method for reducing transfer function ripple in a logarithmic RMS-to-DC converter
05/12/2010CN1442959B Power servo ring, radio frequency signal amplifying circuit and radio frequency signal emitter
05/12/2010CN101707477A Circuit for eliminating impact sound generated in switching process
05/12/2010CN101098130B Device for converting signal amplitude
05/12/2010CN101075803B Method for automatically controlling gain value and voice transmitter
05/12/2010CN101060346B A device and method for improving the dynamic range of receiver
05/11/2010US7715574 Audio apparatus for vessel
05/11/2010US7714658 Method and system for variable-gain amplifier
05/11/2010US7714657 Low noise amplifier gain controlled scheme
05/11/2010US7714266 Method and apparatus for measuring source follower gain in an image sensor array
05/11/2010CA2561391C A versatile attenuator
05/11/2010CA2508671C Gain compensation over temperature and frequency variations in wireless transceivers
05/11/2010CA2506512C Method and apparatus for optimizing transmitter power efficiency
05/11/2010CA2492477C Method and apparatus for compensating code channel power in a transmitter
05/06/2010US20100111337 Headphone accessory
05/06/2010US20100111330 Audio mixing using magnitude equalization
05/06/2010US20100111328 Volume adjusting system and method
05/06/2010US20100111313 Sound Processing Apparatus, Sound Processing Method and Program
05/06/2010US20100111203 Wireless transmitting and receiving device and method
05/06/2010US20100109783 Reconfigurable Amplifier and Filter Using Time-Varying Circuits
05/06/2010US20100109778 Broadband rf linear amplifier
05/06/2010US20100109770 Reconfigurable power amplifier and use of such amplifier for making a multi-standard amplification stage for mobile phone communications
05/05/2010EP2182688A1 Equalizer filter with mismatch tolerant detection mechanism for lower and higher frequency gain loops
05/05/2010EP2182379A1 Laser scanner to measure distance
05/05/2010EP2181501A1 Receiver with adaptive equalizer
05/05/2010EP1610457B1 Communication terminal device and amplification circuit
05/05/2010EP1485993B1 R.f. output power control
05/05/2010CN201450527U Device for automatically adjusting ring volume of mobile phone
05/05/2010CN1993885B Transimpedance amplifier
05/05/2010CN1871745B Method and apparatus providing integrated load matching using adaptive power amplifier compensation
05/05/2010CN1770627B Automatic feedback control method for self-adaptive setover variable gain low noise amplifier
05/05/2010CN1739236B Gain variable voltage/current conversion circuit and filter circuit using the same
05/05/2010CN1725634B Automatic level adjustment circuit
05/05/2010CN1725633B Automatic level control circuit
05/05/2010CN1705123B Semiconductor device
05/05/2010CN1647396B Transmitter and wireless communication apparatus using the transmitter
05/05/2010CN1578122B Offset correct method, offset correct circuit and electronic sound volume device
05/05/2010CN101702618A Gain control of radio frequency linear power amplifier
05/04/2010US7711333 Detector with complementary response slope
05/04/2010US7711132 Hearing aid
05/04/2010US7710503 Apparatus and method for optimizing the level of RF signals based upon the information stored on a memory
05/04/2010US7710201 Power amplifier circuit, control method thereof and control program thereof
04/2010
04/29/2010WO2010047689A1 Amplifier with reduced output transients and method therefor
04/29/2010WO2010047631A1 A circuit comprising at least a first transistor group and a second transistor group
04/29/2010US20100105448 Power amplifier saturation detection
04/29/2010US20100102887 Electronic component for high frequency power amplification
04/29/2010DE102005019604B4 Aktiv-Richtlautsprecher zum Beschallen einer Hörzone und Verfahren zum automatischen Anpassen der Wiedergabelautstärke eines einer Hörzone zugeordneten Richtlautsprechers Active directional speaker to address a listening zone and method for automatically adjusting the playback volume of a sound zone associated directional loudspeaker
04/28/2010EP1485995B1 Front stage amplifier with different modes
04/28/2010CN1774860B Wireless frequency output power control system
04/28/2010CN1581683B Automatic gain controlling circuit and method of receiver for mobile object
04/28/2010CN1496018B Radio communication device
04/27/2010US7706553 Auto-mute command stream by voice-activated remote control
04/27/2010US7706552 Sound signal processing apparatus and sound signal processing method
04/27/2010US7706551 Dynamic volume control
04/27/2010US7705680 Gain switching low-noise amplifier circuit
04/27/2010US7705284 High-speed single-photon detector in telecommunication wavelength band
04/22/2010WO2010044439A1 Audio signal adjustment device and audio signal adjustment method
04/22/2010WO2010043535A1 Ir receiver unit
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