(57) ABSTRACT A method is provided for communicating signals at a low power level in an
electromagnetic interference (EMI) envi ronment. A first device transmits a modulated signal …

(57) ABSTRACT Logarithmic Detector Amplifiers (LDAs), multiple antennas, active
antennas, and multiple active antennas and receivers are provided in a variety of …

An in-medium monitoring system for monitoring material carried within a pipe. The system
includes an acoustic device installed within the pipe that generates Voltage sig nals …

(51) Int. Cl. 2005, OO69051 A1 3, 2005 Lourens HO3D L/08(2006.01) 2005/0270172 A1
12/2005 Bailey et al. 2006/0028297 A1 2/2006 Kang et al. H01O 700(2006.01) …

BACKGROUND Present systems for extracting a wanted signal from a noisy signal include
averaging, selective amplification and/or filtering, synchronized detection (eg, phase lock …

US9397382B2 - Logarithmic amplifier with universal demodulation capabilities - Google Patents
US9397382B2 - Logarithmic amplifier with universal demodulation capabilities - Google Patents …

(54) METHOD OF AND APPARATUS FOR(52) US Cl. SYNCHRONIZATION CPC............
H04B I/7.183 (2013.01); H04L I/0045 (2013.01); H04L I/004I (2013.01); H04B (75) Inventors …

(57) ABSTRACT A receiver and a transmitter that copes with interference in a Super-
regenerative communication system, and a method of using the receiver and the transmitter …

(57) ABSTRACT A logarithmic detector amplifying (LDA) system is provided for use as a
high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of …

(57) ABSTRACT A regenerative selective logarithmic detector amplifier (LDA) can have
integrated FM demodulation capabilities. It can receive a wired or wireless FM modulated …