Methods and systems for down-converting a signal

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United States of America Patent

PATENT NO 9319262
APP PUB NO 20150295536A1
SERIAL NO

14751425

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods, systems, and apparatuses for down-converting a modulated carrier signal to a demodulated baseband signal by sampling a portion of the energy of the carrier signal are described herein. Briefly stated, such methods systems, and apparatuses operate by receiving a modulated carrier signal and using a control signal to control a switch or switches so as to transfer a portion of the energy from the modulated carrier signal in the form of charge to a storage capacitor during a plurality of aperture periods and to discharge the charge in the storage capacitor into a load during the time between the plurality of aperture periods. The demodulated baseband signal is generated—during both the charging and the discharging of the storage capacitor based on the energy accumulated at the storage capacitor as a net result of previous charging and discharging of the storage capacitor.

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Patent Owner(s)

Patent OwnerAddress
PARKERVISION INC7915 BAYMEADOWS WAY SUITE 400 JACKSONVILLE FL 32256

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bultman, Michael J Jacksonville, US 127 6349
Cook, Robert W Jacksonville, US 135 6582
Looke, Richard C Jacksonville, US 121 6129
Moses,, Jr Charley D Jacksonville, US 52 926
Sorrells, David F Jacksonville, US 233 11114

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