Kreienkamp
Rainer Kreienkamp, Dusseldorf DE
Patent application number | Description | Published |
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20100315140 | Compensation Of Phase Lock Loop (PLL) Phase Distribution Caused By Power Amplifier Ramping - Disclosed herein are techniques, systems, and methods relating to compensation of phase disturbances of a phase lock-loop during power ramp up or down of a power amplifier. More specifically, a phase lock-loop is described that is able to switch between type I and type II PLL modes depending on the power state of the power amplifier without introducing additional disturbances. | 12-16-2010 |
Rainer Kreienkamp, Bochum DE
Patent application number | Description | Published |
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20100177811 | Integrated Transceiver Loop Back Self Test by Amplitude Modulation - This disclosure relates to radio frequency (RF) functional testing of transceivers of wireless devices. | 07-15-2010 |
20120092048 | COMPENSATION OF PHASE LOCK LOOP (PLL) PHASE DISTRIBUTION CAUSED BY POWER AMPLIFIER RAMPING - Disclosed herein are techniques, systems, and methods relating to compensation of phase disturbances of a phase lock-loop during power ramp up or down of a power amplifier. More specifically, a phase lock-loop is described that is able to switch between type I and type II PLL modes depending on the power state of the power amplifier without introducing additional disturbances. | 04-19-2012 |
Rainer Kreienkamp, Duesseldorf DE
Patent application number | Description | Published |
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20120270518 | Mixer, Mixer System and Method - A mixer is configured to sample a received input signal at a predefined oscillator frequency to generate a sampled input signal, and to switch a polarity of the sampled input signal at a predefined polarity switching frequency to generate a polarity switched sampled input signal. | 10-25-2012 |
20130266101 | Sampling Receiver with Inherent Mixer Functionality - One embodiment of the present invention relates to a combined mixer filter circuit. The circuit includes a sampler, a plurality of filter branches, and a coefficient generator. The sampler is configured to provide a sampled signal by sampling a received signal at a specified rate. The plurality of filter branches has selectable filter coefficients. The plurality of filter branches are configured to receive the sampled signal and generate a mixed and filtered output signal without a separate mixer component. The coefficient generator is coupled to the plurality of filter branches. The coefficient generator is configured to assign filter coefficient values to the selectable filter coefficients to yield a selected mixing function for the mixed filtered output signal. | 10-10-2013 |