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Telecommunications > Transmitter > Noise Or Interference Elimination Noise Or Interference EliminationNoise Or Interference Elimination patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/11/07 - 20070010214 - Method and system for integrated circuit rf immunity enhancement Method and system for enhancing RF immunity of integrated circuits (ICs). Susceptibility of different subcircuits within the IC is determined by simulation or bench testing. Relatively simple filters are implemented based on the susceptible frequency range and circuit parameters such as impedance. Filter(s) may be integrated into the IC avoiding ... 09/28/06 - 20060217082 - Shaping noise in power amplifiers of duplex communication systems The present invention provides a method and an apparatus for reducing radio frequency noise within a duplex communication system. The method comprises sensing a radio frequency transmit signal capable of operating a power amplifier that is capable of operation at a microwave transmit frequency and using a filter to cause ... 08/10/06 - 20060178119 - Variable bandwidth envelope modulator for use with envelope elimination and restoration transmitter architecture and method A RF transmitter has at least one amplifier having an input terminal for receiving a phase modulated signal to be transmitted on an RF carrier and an input node for receiving a modulation signal for amplitude modulating the RF carrier. The RF transmitter further includes an amplitude modulator having an ... 05/18/06 - 20060105723 - Simple crest factor reduction technique for non-constant envelope signals A technique for Crest Factor reduction of non-constant envelope signals is described. The input to any nonlinear circuit is modified by a Crest Factor reduction circuit, prior to being applied to the nonlinear circuit. The Crest Factor reduction circuit can either be performed at baseband or RF/IF frequencies. When performed ... 05/11/06 - 20060099917 - Wireless transmitter dc offset recalibration In many circuits, including those operating in radio frequency (RF), there is commonly a need to perform DC offset cancellation. The DC offset is an error in an output signal in respect to the input that may cause a circuit to enter into undesirable or non-tolerable conditions of operation. While ... 01/12/06 - 20060009172 - Feed forward amplifier with multiple cancellation loops capable of reducing intermodulation distortion and receive band noise An embodiment of the present invention provides an apparatus, comprising a feed forward amplifier capable of receiving an input signal and including a plurality of cancellation loops, wherein at least one of the cancellation loops includes a tunable delay line enabling the reduction of intermodulation distortion and receive band noise ... 01/12/06 - 20060009171 - Lo leakage and sideband image calibration system and method A system or method for calibrating an RF transmitter includes inputting a test tone to the RF transmitter. LO leakage calibration is performed on an output of the RF transmitter with the test tone inputted thereto, in order to determine a minimum LO leakage. Thereafter, sideband image calibration is performed ... 10/20/05 - 20050233712 - Low-frequency signal correction circuit A correction circuit for reducing the amount of noise generated in an analog television transmission system. A correction circuit generates a signal with opposite phase and identical amplitude to a noise signal generated by a high power amplifier and this signal is modulated with an analog television signal to be ... ### FreshPatents.com Support |