公开(公告)号：EP3357163A1

公开(公告)日：2018-08-08

申请号：EP16774812.8

申请日：2016-09-22

申请人： Google LLC

发明人： RICH, Mark ,  MACK, Michael Peter ,  KACZYNSKI, Brian

IPC分类号： H03M1/12 ,  H03M1/06

CPC分类号： H03M1/0639 ,  H03M1/1265

摘要： A radio frequency receiver includes an antenna that receives an analog signal comprising modulated encoded information. An analog signal generator generates a supplemental analog signal characterized by an amplitude sufficient to trigger a voltage threshold in a non-uniform sampling analog-to-digital converter. A mixer mixes the received signal and the supplemental signal. A non-uniform sampling analog-to-digital converter receives the mixed signal and produces a series of non-uniformly sampled {amplitude, time} tuples representing the mixed signal. The converter removes the supplemental signal from the series of {amplitude, time} tuples to produce a series of non-uniformly sampled {amplitude, time} tuples representative of the mixed signal without the supplemental signal. The converter interpolates the series of non-uniformly sampled {amplitude, time} tuples to form a series of samples periodic in time representative of the analog input signal. A digital signal processor (DSP) demodulates the interpolated series and decode the digital information from the demodulated series.