Methods and Systems for Down-Converting a Signal Using a Complementary Transistor Structure

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United States of America Patent

SERIAL NO

14085008

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal is described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

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Patent Owner(s)

Patent OwnerAddress
PARKERVISION INCJACKSONVILLE FL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bultman, Michael J Jacksonville, US 127 6349
Cook, Robert W Switzerland, US 135 6582
Looke, Richard C Jacksonville, US 121 6129
Moses, Jr Charley D Jacksonville, US 56 4762
Sorrells, David F Middleburg, US 233 11114

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