Patent application number | Description | Published |
20100265008 | Reduction of Gain Switching Induced Phase Jumps in High Dynamic Range Downcoversion Mixers - A system and method for minimizing phase jumps in an output signal. | 10-21-2010 |
20120201175 | FILTERING USING IMPEDANCE TRANSLATOR - This disclosure relates to low noise amplifiers (LNAs) and more particularly to LNAs integrated on integrated circuit (IC) chips along with radio frequency (RF) amplifiers. In one implementation, an impedance translator is coupled to an amplifier, the impedance translator to cause the amplifier to selectively amplify the one or more components of a received signal. | 08-09-2012 |
20130208631 | Cancellation of RF Second-Order Intermodulation Distortion - The disclosed invention relates to a transceiver system configured to cancel RF second-order intermodulation distortion (IMD2) within a differential reception path. In some embodiments, the transceiver system has one or more common-mode attenuation elements that attenuate common-mode interferer signals within the differential reception path. The common-mode attenuation elements detect a common-mode interferer from one or more nodes within a transceiver system front-end. One or more properties of the detected common-mode interferer are adjusted and then fed into the differential reception path, where the adjusted common-mode signal attenuates the common-mode interferers. In other embodiments, the differential reception path has a tunable amplifying stage. The tunable amplifying stage has first and second amplifier elements that are independently operated to intentionally introduce an operating parameter mismatch between the elements. The intentional mismatch may be tuned to account for different nonlinear responses of the amplifier elements to mitigate IMD2 within the differential reception path. | 08-15-2013 |
20130210375 | Cancellation of RF Second-Order Intermodulation Distortion - The disclosed invention relates to a transceiver system configured to cancel RF second-order intermodulation distortion (IMD | 08-15-2013 |
20140159933 | RF-DAC CELL AND METHOD FOR PROVIDING AN RF OUTPUT SIGNAL - An RF-DAC cell is configured to generate an RF output signal based on a baseband signal, a first signal and a second signal. The first signal has a first duty cycle and toggles between first predefined amplitude values, and the second signal has a second duty cycle smaller than the first duty cycle and toggles between second predefined amplitude values. | 06-12-2014 |
20140162576 | Envelope Detector and Method for Detecting an Envelope of a Signal to be Amplified by a Power Amplifier - An envelope detector includes an input receiving a digital input signal indicative of a magnitude of a signal to be amplified by a power amplifier. A circuit is provided for generating an analog envelope signal based on the digital input signal. The envelope detector includes an output for outputting the analog envelope signal. | 06-12-2014 |
20140211870 | Communication Systems and Methods Supporting Multiple Modulation Techniques - A communication system includes a first DAC array, a second DAC array, and a merge component. The first DAC array is configured to receive a first portion of modulation signals and to generate a first RF signal according to a modulation mode. The second DAC array is configured to receive a second portion of the modulation signals and to generate a second RF signal according to the modulation mode. The merge component is configured to receive the first RF signal and the second RF signal. The merge component is also configured to generate an output RF signal according to the first RF signal and the second RF signal, wherein the output RF signal has a modulation format according to the modulation mode. | 07-31-2014 |
20140269993 | METHOD AND APPARATUS FOR GENERATING A PLURALITY OF MODULATED SIGNALS - A method and an apparatus provide a plurality of modulated signals by frequency shifting an output signal of a carrier signal generation circuit for obtaining a first carrier signal and a second carrier signal, and by modulating the first and second carrier signals. | 09-18-2014 |