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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:
| 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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