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Class Information
Number: 455/340
Name: Telecommunications > Receiver or analog modulated signal frequency converter > With particular receiver circuit > Coupling or decoupling between stages > Variably tunable or adjustable
Description: Systems wherein the coupling or decoupling means is recited as variably tunable or adjustable whereby the extent of the effective coupling or the width of the band passed by the network may be varied.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8705675 Device and method for receiving RF signals based on heterodyne architecture using complex IF subsampling Apr. 22, 2014
8706069 Integrated receivers and integrated circuit having integrated inductors Apr. 22, 2014
8687645 Wireless communications device providing temperature-compensated clock correction features and related methods Apr. 1, 2014
8649738 High-frequency amplifier and radio communication apparatus Feb. 11, 2014
8649753 Method and system for using a microstrip to switch circuits in CMOS applications Feb. 11, 2014
8644779 Apparatus and method for antenna matching in mobile device Feb. 4, 2014
8600331 Radio receiver with reconfigurable baseband channel filter Dec. 3, 2013
8552789 Device beacon for handoff management of handoffs to access nodes Oct. 8, 2013
8521116 Systems, methods and devices for dual closed loop modulation controller for nonlinear RF amplifier Aug. 27, 2013
8503965 Programmable RF array Aug. 6, 2013
8498606 Data rate tracking filter Jul. 30, 2013
8494470 Integrated receivers and integrated circuit having integrated inductors Jul. 23, 2013
8483626 Software-defined radio Jul. 9, 2013
8447255 Variable impedance matching network and method for the same May. 21, 2013
8447256 Digital voltage-controlled attenuator May. 21, 2013
8437720 Variable-gain low noise amplifier for digital terrestrial applications May. 7, 2013
8436693 Filter-tracking and control method May. 7, 2013
8428533 Techniques for optimizing gain or noise figure of an RF receiver Apr. 23, 2013
8428546 Baseband signal processing technique Apr. 23, 2013
8428538 Channel estimator Apr. 23, 2013
8374566 Integrated wideband RF tracking filter for RF front end with parallel band switched tuned amplifiers Feb. 12, 2013
8355689 Independent field device for automation purposes with intrinsic safety barrier Jan. 15, 2013
8275340 Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same Sep. 25, 2012
8275341 Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same Sep. 25, 2012
8275339 Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same Sep. 25, 2012
8269551 Complex filter and calibration method Sep. 18, 2012
8260246 Data rate tracking filter Sep. 4, 2012
8238866 Filtering communications channels within telecommunications satellites Aug. 7, 2012
8233875 Device beacon for handoff management of handoffs to access nodes Jul. 31, 2012
8233898 Wireless communications device providing temperature-compensated clock correction features and related methods Jul. 31, 2012
8219038 Method and apparatus for improving broadcasting reception performance of portable terminal Jul. 10, 2012
8208887 Receiving circuit including balun circuit and notch filter and operating method thereof Jun. 26, 2012
8170151 FSK receiver May. 1, 2012
8160526 Filter configuration for a receiver of multiple broadcast standard signals Apr. 17, 2012
8155618 Receiving device for frequency modulated signals with voltage-limited reference input to demodulated signal binarization comparator Apr. 10, 2012
8145172 Low-cost receiver using tracking filter Mar. 27, 2012
8135375 Receiver having a gain-controllable stage Mar. 13, 2012
8116713 Automatic bandwidth control with high-deviation detection Feb. 14, 2012
8107914 RF filter with low-IF mixing, tuning and calibration Jan. 31, 2012
8103233 Tuner Jan. 24, 2012
8090338 Quadratic amplitude control circuit for cosite interference cancellation Jan. 3, 2012
8090339 Off-line channel tuning amplitude slope matched filter architecture Jan. 3, 2012
8086206 Quadratic amplitude control circuit for cosite interference cancellation Dec. 27, 2011
8073419 Coherent tunable filter apparatus and wireless communication front-end circuit thereof Dec. 6, 2011
8036624 Off-line channel tuning amplitude slope matched filter architecture Oct. 11, 2011
8032103 Tuning amplitude slope matched filter architecture Oct. 4, 2011
8023911 Amplifying device and radio Sep. 20, 2011
8023921 Quadratic amplitude control circuit for cosite interference cancellation Sep. 20, 2011
7986932 Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same Jul. 26, 2011
7962115 Circuit with programmable signal bandwidth and method thereof Jun. 14, 2011

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