Method and device for phase and/or pulse-width modulation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 2, 2013
Grant Date -
Dec 29, 2011
app pub date -
Jun 10, 2011
filing date -
Jun 14, 2010
priority date (Note) -
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Abstract
The present invention relates to a device (2000) and a method for encoding an input signal (102) into a digital pulse-width and/or phase modulated output signal (162). The present invention also relates to a transmission method, a power amplifier and a transmitter. With the aid of a mapping process comprising at least three-stages, a sequence of output pulses (162) is generated which corresponds on average over time to a theoretical, previously computed target pulse. In this way, the device (2000) or the method can be digitally implemented and a large part (100, 110) of the device (2000) can also be operated at a clock rate that is substantially lower than a clock rate of the output signal generator (200, 220).
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