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Class Information
Number: 455/295
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Modulation distortion or cross talk correction or elimination
Description: Subject matter including means whereby intermodulation components occurring in a desired modulated carrier wave input signal, due to cross-modulation of the desired carrier by an undesired signal wave, are corrected for or whereby distortions of a desired modulated carrier wave input signal, which are due to causes other than interference external to the receiver system, are corrected for or eliminated.










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

Patent Number Title Of Patent Date Issued
8706070 RF system for reducing intermodulation (IM) products Apr. 22, 2014
8687645 Wireless communications device providing temperature-compensated clock correction features and related methods Apr. 1, 2014
8681897 Dynamic digital communication system control Mar. 25, 2014
8682275 Apparatus and methods for reducing interference in radio-frequency apparatus Mar. 25, 2014
8666325 Polar feedback receiver for modulator Mar. 4, 2014
8655297 Nonlinear distortion compensating receiver and nonlinear distortion compensation method Feb. 18, 2014
8644785 Filtering using impedance translator Feb. 4, 2014
8634793 IP2 calibration measurement and signal generation Jan. 21, 2014
8634794 Multi-user interference cancellation in a single-carrier radio receiver Jan. 21, 2014
8630685 Method and apparatus for providing sidetone feedback notification to a user of a communication device with multiple microphones Jan. 14, 2014
8626082 Polar feedback receiver for modulator Jan. 7, 2014
8594575 Shifted channel characteristics for mitigating co-channel interference Nov. 26, 2013
8565418 Method, device and system for extending channels Oct. 22, 2013
8532039 Method for a radio frequency (RF) sampling apparatus with arrays of time interleaved samplers and scenario based dynamic resource allocation Sep. 10, 2013
8521113 Methods and apparatus for predicting a channel quality indicator in a communication system Aug. 27, 2013
8509719 Radio communication terminal and reception control method Aug. 13, 2013
8503961 Active resistive summer for a transformer hybrid Aug. 6, 2013
8467307 Signal quality determination in cable networks Jun. 18, 2013
8457568 System and method for processing a received signal Jun. 4, 2013
8457584 Systems and methods to attenuate intermodulation interference Jun. 4, 2013
8406425 Method and apparatus for minimizing co-channel interference Mar. 26, 2013
8401509 Two stage radio frequency interference cancellation system and method Mar. 19, 2013
8391818 Second-order distortion correcting receiver and second-order distortion correcting method Mar. 5, 2013
8385872 Linear transconductor for RF communications Feb. 26, 2013
8369812 Method and system for detection of passive intermodulation interference emissions Feb. 5, 2013
8369813 Apparatus and method for reducing cross-talk between audio channels in a mobile terminal Feb. 5, 2013
8369864 Inter-sector macrodiversity interference cancellation and scheduling Feb. 5, 2013
8344855 Radio frequency identification interrogator and method of operating the same Jan. 1, 2013
8320866 Integrated circuits, communication units and methods of cancellation of intermodulation distortion Nov. 27, 2012
8311155 Electronic tuner and high frequency receiving device using the same Nov. 13, 2012
8301102 Correcting quadrature crosstalk contamination in receivers Oct. 30, 2012
8280334 System and method for radio signal reconstruction using signal processor Oct. 2, 2012
8270927 Adaptive interference filtering Sep. 18, 2012
8270928 Signal analysis for an improved detection of noise from an adjacent channel Sep. 18, 2012
8249540 Two stage radio frequency interference cancellation system and method Aug. 21, 2012
8233898 Wireless communications device providing temperature-compensated clock correction features and related methods Jul. 31, 2012
8229028 Apparatus for measuring IQ imbalance Jul. 24, 2012
8219056 Radio environment scanner Jul. 10, 2012
8208528 Programmable adaptation convergence detection Jun. 26, 2012
8180310 Filtering using impedance translator May. 15, 2012
8180309 Lock-in amplifier and method for filtering a measurement signal using such an amplifier May. 15, 2012
8175540 Intermodulation distortion control May. 8, 2012
8170519 System and method for radio signal reconstruction using signal processor May. 1, 2012
8164496 Mismatch compensators and methods for mismatch compensation Apr. 24, 2012
8165553 Current-matching intermodulation suppression Apr. 24, 2012
8155615 Generation of a composite mitigation signal with a desired spectral energy distrubution Apr. 10, 2012
8149955 Single ended multiband feedback linearized RF amplifier and mixer with DC-offset and IM2 suppression feedback loop Apr. 3, 2012
8150356 Split analog/digital polynomial nonlinear term generator with reduced number of analog-to-digital converters Apr. 3, 2012
8135372 Integrated cancellation circuit for RF converter spurious tones Mar. 13, 2012
8131245 Mixer for downconversion of RF signals Mar. 6, 2012

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