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Class Information
Number: 455/245.1
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Local control of receiver operation > Gain control > Automatic > Automatic gain control signal derived from information signal
Description: Subject matter wherein the gain control is derived from the demodulated (usually the audio) signal.










Sub-classes under this class:

Class Number Class Name Patents
455/245.2 Plural stages controlled 100


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8682270 Receiver having multipath equalizer Mar. 25, 2014
8681846 Measurement of I/Q impairments from a sampled complex signal Mar. 25, 2014
8660509 Mobile terminal station and synchronous control method Feb. 25, 2014
8660510 Apparatus for receiving analog baseband signal Feb. 25, 2014
8660221 Fast and robust AGC apparatus and method using the same Feb. 25, 2014
8634790 Direct conversion receiver architecture with digital fine resolution variable gain amplification Jan. 21, 2014
8626098 Automatic gain control with programmable attack and decay times Jan. 7, 2014
8626099 Direct conversion receiver architecture Jan. 7, 2014
8615212 Direct conversion receiver architecture Dec. 24, 2013
8614769 Intermediate frequency processing device for processing both analogue and digital television intermediate frequency signals Dec. 24, 2013
8571505 Methods and apparatus for controlling a gain state of a wireless receiver operating in an idle mode Oct. 29, 2013
8565358 Circuits, systems, and methods for managing automatic gain control in quadrature signal paths of a receiver Oct. 22, 2013
8526549 Signal processing circuit and method thereof Sep. 3, 2013
8526900 Automatic gain control in a wireless communication network Sep. 3, 2013
8521198 Dynamic LNA switch points based on channel conditions Aug. 27, 2013
8521114 PIN-diode linearized automatic gain control circuits Aug. 27, 2013
8514991 Method circuit and system for adapting a receiver receive chain based on detected background noise Aug. 20, 2013
8514989 Method circuit and system for adapting a receiver receive chain based on detected background noise Aug. 20, 2013
8498366 Architectures for universal or software radio Jul. 30, 2013
8498368 Method and system for optimizing gain changes by identifying modulation type and rate Jul. 30, 2013
8493954 Method and apparatus for reducing digital to analog conversion (DAC) bits in frequency division multiple access (FDMA) system Jul. 23, 2013
8489139 Power sharing method and base station Jul. 16, 2013
8452247 Automatic gain control May. 28, 2013
8446937 Technique for the measurement of I/Q impairments associated with a sampled complex signal May. 21, 2013
8422974 Noise cancellation for antenna module Apr. 16, 2013
8401511 Current-mode wireless receiver and reception method thereof Mar. 19, 2013
8391814 Power control loop, transmitter with the power control loop and method for controlling output power of a transmitter device Mar. 5, 2013
8345730 Interference signal reduction method and receiver Jan. 1, 2013
8331893 Receiver having a gain-controllable input stage Dec. 11, 2012
8326247 Receiver Dec. 4, 2012
8306162 Method and apparatus for complementary cumulative distribution driven level convergence for spectrum sensing Nov. 6, 2012
8280324 Method and system for closed loop power control in wireless systems Oct. 2, 2012
8275335 Methods and apparatus for controlling a gain state of a wireless receiver operating in an idle mode Sep. 25, 2012
8274405 System and method for device management on a dedicated short-range communication network Sep. 25, 2012
8259878 Apparatus and method for receiving signal in wireless communication system using multi antenna Sep. 4, 2012
8260225 Power amplifier controller circuit Sep. 4, 2012
8260240 Single path architecture and automatic gain control (SAGC) algorithm for low power SDARS receivers Sep. 4, 2012
8238861 Automatic gain control in a wireless communication network Aug. 7, 2012
8233093 Automatic video gain control circuit for positive and negative modulation and method thereof Jul. 31, 2012
8213891 Gain control apparatus and method in receiver of multiband OFDM system Jul. 3, 2012
8204534 Transmit power control system, transmit power control method, and terminal device Jun. 19, 2012
8189655 Digital amplifier May. 29, 2012
8116712 Methods and apparatus for controlling a gain state of a wireless receiver operating in an idle mode Feb. 14, 2012
8085839 Adaptive equalization system and method having a lock-up-free quantized feedback DC restoration circuit Dec. 27, 2011
8068799 Radio frequency receiver systems that are configured to achieve high dynamic range Nov. 29, 2011
8055231 RF feedback engine coupled to receiver low noise amplifier Nov. 8, 2011
8005449 Subsampling wideband RSSI circuit Aug. 23, 2011
7995980 Automatic gain control apparatus and method Aug. 9, 2011
7983641 Cable communication apparatus and cable communication method Jul. 19, 2011
7978794 Front-end for digital video receiver and method for automatic gain control thereof Jul. 12, 2011

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